42nd week of 2009 patent applcation highlights part 24 |
Patent application number | Title | Published |
20090257325 | OPTICAL DISK MEDIUM AND METHOD AND APPARATUS FOR READING INFORMATION - An optical disk medium includes a track groove thereon. On the optical disk medium, information is recorded along the track groove on a block unit basis. The block unit has a predetermined length. The block unit having the predetermined length includes a number of sub-blocks that are arranged along the groove. A sub-block mark is provided within each of the sub-blocks and used to identify the sub-block. | 2009-10-15 |
20090257326 | Medium management method and storage device - A medium management method is disclosed. A removable medium is conveyed to a drive section when the removable medium is inserted into a medium accommodation section. The drive section reproduces and reads information from the medium and determines whether the medium is a first medium or a second medium on which data externally or internally created have been recorded according to the information read by the drive section. A partial reproduction operation is performed according to an edit list recorded on the first medium and the reproduced data are transferred to a pre-designated host system when the inserted medium is the first medium. The second medium is registered to a database when the determined result denotes that the inserted medium is the second medium. The medium is returned to the medium accommodation section after one of the partial reproduction operation and the database registration process has been completed. | 2009-10-15 |
20090257327 | Optical Signal Detecting Circuit and Information Reproducing Device Using the Same - An object of the present invention is to achieve both low noise and fast response in an optical signal detecting circuit capable of providing all of three signals—a focus error signal, a tracking error signal, and an RF signal—with only a single detection system. A single current-to-voltage converter converts a current signal obtained by adding currents flowing through two photodiodes, into a voltage signal. Not only currents flowing into the photodiodes, but also currents flowing out from the photodiodes are taken out as the voltage signals. Moreover, by applying two different reference voltages to the current-to-voltage converters, a reverse bias voltage is applied between the terminals of each photodiode. | 2009-10-15 |
20090257328 | METHOD AND APPARATUS FOR RECORDING OR REPRODUCING ON OR FROM OPTICAL MEDIUM USING SBM INFORMATION - A method and apparatus for recording or reproducing data are discussed. According to an embodiment, the invention is directed to a method for recording data onto a recording medium having a recording layer, the recording layer including an inner area, a data area and an outer area, the data area having a user data area and a spare area, the user data area consisting of a plurality of clusters, the method comprising steps of: (a) recording a first data block having a temporary defect list for managing a defective area of the data area onto a temporary defect management area allocated in the inner area or the spare area; and (b) recording a second data block having a space bitmap onto the temporary defect management area. | 2009-10-15 |
20090257329 | INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS AND METHOD, INFORMATION REPRODUCING APPARATUS AND METHOD, AND COMPUTER PROGRAM - An information recording medium is provided with: a first recording layer in which one portion of record information including predetermined data can be recorded, the predetermined data being (i) capable of setting a recording layer close to a physically or optically recorded state, and (ii) capable of setting the recording layer close to a buffer state for finalizing; and a second recording layer in which another portion of the record information can be recorded by laser light transmitted through the first recording layer, the information recording medium is provided with a management area in which management information can be recorded, the management information including (iii) identification information indicating whether or not there is a predetermined data recording area in which the predetermined data can be recorded, (iv) position information of the predetermined data recording area, and (v) attribute information of the predetermined data recording area. | 2009-10-15 |
20090257330 | OPTICAL DISC DRIVE APPARATUS AND ITS CONTROL METHOD - An optical disc drive apparatus which is mounted on a mobile apparatus, which at least reads information from a disc surface of an optical disc disposed in a predetermined position by using a pickup, which is robust against vibration, and which is capable of preventing collision between the disc surface of the optical disc and the pickup judges a road surface condition associated with location information on the basis of the location information concerning a location on a road on which the mobile apparatus is traveling acquired from external and road surface condition information depending upon a road surface condition of a road on which the mobile apparatus travels, and controls servo characteristics of the optical drive apparatus according to control information associated with the judged road surface condition. | 2009-10-15 |
20090257331 | REPRODUCTION DATA RECORDING METHODS - A reproduction data recording method for an optical storage medium. The method comprises storing additional data to a first temporary region of a memory device; reading the first recorded data from the optical storage medium and storing the first recorded data to the first temporary region; reading a data segment of the second recorded data from the optical storage medium and storing the data segment to a second temporary region of the memory device; reading the first recorded data from the first temporary region and the data segment from the second temporary region, and decoding the first recorded data and the data segment to confirm accuracy of the first recorded data; reading the first recorded data and the additional data from the first temporary region, and encoding the first recorded data and the additional data to generate encoded data; and writing the encoded data to the optical storage medium. | 2009-10-15 |
20090257332 | OPTICAL DISC READING APPARATUS AND METHOD THEREFORE - An optical disc reading apparatus, such as a Near Filed optical disc reading apparatus, comprises a disc reader ( | 2009-10-15 |
20090257333 | INTEGRATED CIRCUIT, OPTICAL DISK DEVICE, AND SIGNAL PROCESSING METHOD - Before initiation of tracking control, an optical disk device performs an offset amount obtaining operation, in which a difference between a middle value of the amplitude of a tracking error signal and a predetermined reference value is obtained as an offset amount. After the initiation of the tracking control, the optical disk device initiates an attenuation operation, in which an offset amount attenuation section attenuates the offset amount obtained by the offset amount obtaining operation to obtain an attenuated offset amount, while initiating, with an initial value being 0, an estimation operation, in which an observer estimates the offset amount according to a tracking driving signal to obtain an estimated offset amount. The optical disk device corrects the tracking error signal by using the attenuated offset amount obtained by the attenuation operation and the estimated offset amount obtained by the estimation operation. | 2009-10-15 |
20090257334 | DIGITAL SIGNAL REPRODUCING APPARATUS - A digital signal reproducing apparatus includes an analog to digital converter for sampling and quantizing a signal read from an optical recording medium in accordance with a reproduced clock having a frequency which is one-half of a channel bit frequency and outputting an obtained digital RF signal, an offset compensation circuit for reducing an offset component in an amplitude direction from the digital RF signal, and a simplified interpolation filter for reconstructing a signal indicating a predetermined pattern recorded in the optical recording medium from the output signal of the offset compensation circuit and outputting the reconstructed signal. A control operation is performed to reduce the magnitudes of respective values shown by first phase error information on a section with the predetermined pattern and by second phase error information on a section other than the section with the predetermined pattern. | 2009-10-15 |
20090257335 | AUDIO SIGNAL PROCESSING METHOD - An audio signal processing method includes the steps of: dividing an audio signal data stream into a plurality of selection segments; determining a target segment in the audio signal data stream, the target segment including a splice point for splicing a splice segment thereto; selecting one of the selection segments as the splice segment according to at least one parameter of the target segment; and processing the target segment and the splice segment to splice the splice segment to the target segment, and outputting a processed segment. | 2009-10-15 |
20090257336 | Device for marking optical discs in a non-destructive, tamper-proof manner for licensing and other purposes - A marking device for marking optical discs in a non-destructive, tamper-proof manner for licensing and other purposes such as part of a digital content library service includes top and bottom structures coupled together by a hinge. The bottom structure is adapted with a mounting post in a recessed area defined by opposing curved ledges to hold an optical disc for marking. The top structure is adapted with a removable tool having an embossed symbol for impressing a mark on the held optical disc by applying pressure to the top structure when the device is in a closed position. The top structure is also adapted with perforations for alternatively or additionally injecting a permanent ink onto the optical disc so that a mark defined by the pattern of perforations may be placed on the optical disc. | 2009-10-15 |
20090257337 | OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS - An optical information recording and reproducing apparatus includes an optical pickup, a phase conjugate optical system, a disc cure optical system, and a defect discrimination optical system; and an optical detector that receives a light emitted from the defect discrimination optical system and transmitted through or reflected from an optical information recording medium. A reference light and a signal light emitted from the optical pickup are irradiated onto the optical information recording medium to record and reproduce digital information by using a holography. | 2009-10-15 |
20090257338 | Optical pickup objective lens, optical pickup apparatus and optical disc apparatus - A pickup lens has a plurality of ring zones on at least one surface, and steps are formed respectively between the plurality of ring zones. The plurality of steps have step differences causing laser light to have a phase difference to reduce aberration occurring in the pickup lens due to a change in ambient temperature. Further, when a numerical aperture of the pickup lens is NA, a focal length is f (mm) and a working distance is WD (mm), the pickup lens is fabricated to satisfy NA=0.85, 1.1=f=1.8 and WD=0.3. | 2009-10-15 |
20090257339 | OPTICAL HEAD DEVICE AND OPTICAL INFORMATION RECORDING OR REPRODUCING APPARATUS - There is disclosed an optical head apparatus and an optical information recording or reproducing apparatus capable of obtaining a high light output at a recording time, and a high S/N at a reproducing time with respect to any of disks of next-generation, DVD, and CD standards. Light having a wavelength of 400 nm emitted from a semiconductor laser is almost all reflected by a beam splitter, and condensed on a disk of the next-generation standard. Light having a wavelength of 660 nm emitted from a semiconductor laser is almost all reflected by a beam splitter, almost all transmitted through the beam splitter, and condensed on the disk of the DVD standard. Light having a wavelength of 780 nm emitted from a semiconductor laser is almost all reflected by a beam splitter, almost all transmitted through the beam splitters and condensed on the disk of the CD standard. Reflected light from the disk is almost all transmitted through the beam splitters and received by a photodetector. | 2009-10-15 |
20090257340 | OPTICAL HEAD - To provide an optical head to produce good servo and read signals by reducing the influence of interference by light reflected from a non-read layer of a multilayer optical disc. | 2009-10-15 |
20090257341 | MULTILAYER OPTICAL RECORDING MEDIUM - In a multilayer optical recording medium having at least three recording layers, an influence of interlayer crosstalk due to an unnecessary light is removed. Each of the recording layers includes an information recording area, and the recording layers other than the nearest recording layer and the farthest recording layer when viewed from a light incident side include a first annular area having uneven patterns formed thereon, and a second annular area having uneven patterns formed thereon, the first annular area being adjacent to an inner side of the information recording area, the second annular area being adjacent to an outer side of the information recording area. | 2009-10-15 |
20090257342 | Resource block based pilot pattern design for 1/2 - stream mimo ofdma systems - In OFDMA wireless communications systems, pilot pattern design is optimized based on predefined resource block size. The number of pilots and the spacing between pilots within a resource block is determined based on a set of system requirements. In one novel aspect, pilots are allocated within a resource block to avoid channel extrapolation in both frequency domain and time domain. First, four pilots are positioned at four corners of the resource block. Next, the remaining pilots are maximally evenly distributed within the resource block along both the frequency domain and the time domain. Finally, it is verified that an approximately equal number of pilots are evenly distributed along the time domain with respect to each data stream to minimize power fluctuation. For uplink transmission, one or more frequency tones at one or more edges of the resource block are reserved to be pilot-free to reduce multiuser synchronization error effect. | 2009-10-15 |
20090257343 | PERMUTING SLOTS TO LOGICAL DISTRIBUTED RESOURCE UNITS - Various example embodiments are disclosed. According to an example embodiment, a method may comprise sending, by a sending wireless station in a wireless network, data to a receiving wireless station, the data being sent via at least one logical distributed resource unit (LDRU), the LDRU including slots included in at least one physical resource unit (PRU), each of the slots included in the at least one PRU being associated with a different orthogonal frequency division multiple access (OFDMA) symbol and a different OFDMA subcarrier. | 2009-10-15 |
20090257344 | ALL OPTICAL OFDM WITH INTEGRATED COUPLER BASED IFFT/FFT AND PULSE INTERLEAVING - A method and apparatus for all optical orthogonal frequency division multiplexing (OFDM) employing Inverse Fast Fourier Transform/Fast Fourier Transform by integrated coupler interferometrically. | 2009-10-15 |
20090257345 | APPARATUS, METHOD AND COMPUTER PROGRAM PRODUCT FOR PROVIDING SELF ADAPTING TRANSPORT OF PUBLIC SWITCHED TELEPHONE NETWORK (PSTN) CIRCUITS OVER A WIRELESS NETWORK - An adaptive telecommunications system for transporting communication traffic over a network comprising a means for transmitting communication traffic between a plurality of devices through a network, monitoring the communication traffic between the plurality of devices, and a adaptively changing the mode of operation either before and/or during a call, based on at least one of instantaneous network changes, connection type characteristics, and type of communication traffic. The devices attached to the network may consist of, for example, a fax machine, phone, mobile phone, public branch network exchange, a computer, or a switch. The traffic traveling across the system, voice, fax, or data, for example, may be compressed and/or restricted based on the type of traffic. The system may fully replace the existing PSTN circuits or may be used for overflow when the existing PSTN circuits are at near or full capacity. | 2009-10-15 |
20090257346 | MOBILE NETWORK CONTROL APPARATUS AND MOBILE NETWORK CONTROL METHOD - A mobile network control apparatus capable of improving transmission efficiency without giving any processing loads to nodes of a mobile network. In mobile routers to which the present apparatus is applied, a tunnel failure detection unit detects a failure of packet tunneling executed using an interface of the mobile routers. A multi-homing detection unit searches for interfaces having a connection route to a global network out of an interface of the mobile routers according to the detected failure of packet tunneling, A bidirectional tunneling unit executes packet tunneling using the searched interfaces instead of the interface of the mobile routers. | 2009-10-15 |
20090257347 | Spatial Clustering - A method for providing redundancy within a communication network, the method provides means for using the same IP address with a plurality of hosts located in different subnets, non-simultaneously, without requiring any additional programming for routers in the network. | 2009-10-15 |
20090257348 | REDUNDANT ETHERNET AUTOMATIC PROTECTION SWITCHING ACCESS TO VIRTUAL PRIVATE LAN SERVICES - Embodiments disclosed herein provide redundant connectivity between an Ethernet Automatic Protection Switching (EAPS) access network and a Virtual Private LAN Service (VPLS) network. A first VPLS node is provided to function as an EAPS controller node. A second VPLS node is provided to function as an EAPS partner node. The first and second VPLS nodes are linked by a pseudowire and an EAPS shared-link. Additional EAPS nodes are also provided. The additional EAPS nodes are linked to each other and one of the additional EAPS nodes is designated as a master node. Links are also established between the VPLS nodes and the EAPS nodes such that one or more EAPS rings are formed. Each EAPS ring includes the shared-link between the first and second VPLS nodes. The EAPS rings are monitored to detect link failures. When a failure of the pseudowire shared-link between the first and second VPLS nodes is detected, all pseudowire links associated with the first VPLS node are disabled if any of the EAPS nodes has a path to both of the VPLS nodes. Otherwise, the existing pseudowire links associated with the first VPLS node are maintained. | 2009-10-15 |
20090257349 | DATAGRAM RELAYING APPARATUS WITH LOAD DISTRIBUTING FUNCTION - A datagram relaying apparatus includes a plurality of protocol terminating units, and a destination determining processor. The destination determining processor includes a path selecting section which determines a transfer destination route for a stream of packets received from any of the protocol terminating units. The path selecting section determines whether or not transfer of the received stream of packets to the transfer destination route is in an inhibition state, and selects another transfer destination route when the transfer of the packet to the transfer destination route is in the inhibition state. | 2009-10-15 |
20090257350 | SYSTEM AND METHOD FOR USING NETWORK PERFORMANCE INFORMATION TO DETERMINE IMPROVED MEASURES OF PATH STATES - A method of determining the state of a path in a network includes measuring at a node of the network a rate of throughput over an interval for at least a portion of the path and determining at the node of the network a derivation associated with a characteristic of the frames communicated over at least the portion of the path. The method also includes determining a state of congestion of the path in response to the measured rate of throughput and the determined associated derivation. | 2009-10-15 |
20090257351 | METHODS AND APPARATUS FOR COMMUNICATING AND/OR USING LOAD INFORMATION IN SUPPORT OF DECENTRALIZED TRAFFIC SCHEDULING DECISIONS - Methods and apparatus related to communicating and/or using load information in support of decentralized traffic scheduling decisions are described. Individual wireless terminals corresponding to a peer to peer connection which desire to communicate traffic signals make transmitter yielding and/or receiver yielding decisions on a traffic slot by traffic slot basis. Loading information is used to intentionally skew transmitter yielding decisions in response to conditions and/or needs in the system. A link load weight value is generated based on intended transmitter loading related information and/or intended receiver loading related information. Traffic request parameters and/or link load weight values are communicated between wireless communications devices in request and/or request response signaling. As part of a transmitter yielding decision, one or more of: a spillage value, weighted SINR, and an interference cost estimate is calculated based on: one or more link load weight values and channel condition measurement information. | 2009-10-15 |
20090257352 | APPARATUS AND METHOD FOR MONITORING NETWORK - A network monitoring apparatus retrieves packets flowing on a path to be monitored on a network using a packet capturing unit. A packet analyzing unit analyzes the retrieved packets. Although the network monitoring apparatus discards some of the packets using a sampling unit, a sampling rate is determined by a sampling-rate regulating unit. A resource-usage-amount measuring unit measures how many resources are actually used inside the network monitoring apparatus and the sampling rate determined by the sampling-rate regulating unit is based on a resource usage amount. | 2009-10-15 |
20090257353 | METHOD OF NETWORK MANAGEMENT BY ASSISTANCE FROM TERMINAL USING CONTROL-PLANE SIGNALING BETWEEN TERMINAL AND NETWORK - Systems and methodologies are described that facilitate network management and optimization. As described herein, a network and a device communicating with the network can exchange network management information, thereby supporting a Self Organized Network (SON) architecture for improved network management and optimization performance. A Non-Access Stratum (NAS) layer protocol and/or an Internet Protocol (IP) application, in combination with a set of associated network management messages, can be utilized to exchange network management information between a device and a network. As further described herein, various procedures can be utilized to install a SON policy to a device in order to define device behavior for operations such as collecting and reporting information related to network management. Additionally, a set of standardized events can be defined, based on which a device can detect the occurrence of an event and report the occurrence to an associated network. | 2009-10-15 |
20090257354 | Hardware Time Stamping and Synchronized Data Transmission - Hardware time stamping and synchronized data transmission disclosed. In a method, a reference time stamp and a local time stamp are obtained. A synchronization offset is prepared based on the local time stamp and the reference time stamp. Instructions are received to send a plurality of data units at a specified time. The plurality of data units are sent at the specified time based on referring to a local time obtained from a local clock and the synchronization offset to simultaneously send a packet storm comprising the plurality of data units. The method may be achieved by a network communications unit on a plurality of network cards included in a network testing system. | 2009-10-15 |
20090257355 | Network node power conservation apparatus, system, and method - A network node self-retirement apparatus, system, and method is provided. The system includes a first network node, a second network node, and a plurality of network nodes. The first network node is configured to monitor a power and traffic level of the first network node and determine an operational weight based thereon. The first network node is further configured to compare the operational weight to a selected operational weight to determine a relationship between the operational weight and the selected operational weight. The first network node is further configured to execute a network node self-retirement procedure when the relationship satisfies a selected condition and to send the operational weight to at least one network node when the relationship does not satisfy the selected condition. The first network node may also determine a network topology based on operational weights received from other network nodes. | 2009-10-15 |
20090257356 | Enhanced channel quality indication reports - A method includes making measurements of a received channel, and transmitting a channel quality report that includes at least one resource block-specific report indicative of a value of a channel quality metric over a bandwidth x, and that further includes an additional report indicative of the value of the channel quality metric over a bandwidth y, where y is greater than x. The channel quality metric may be a signal to interference plus noise ratio (SINR), and the additional channel quality report may be indicative of a difference between a mean value of the SINR of physical resource blocks found by a user equipment to exceed a reporting threshold and a mean value of the SINR over the measurement bandwidth y. | 2009-10-15 |
20090257357 | Efficient Determination Of A Link Performance Parameter - The subject matter disclosed herein provides methods and apparatus, including computer program products, for determining a link performance parameter, such as a supplemental channel characteristic of a wireless link. In one aspect, a base station receives packets from a client station. The base station determines a link performance parameter based on an error rate associated with reception of the packets. The base station then uses the link performance parameter to determine a modulation and coding scheme for use in transmitting packets to the client station. Related systems, apparatus and methods are also described. | 2009-10-15 |
20090257358 | METHOD AND APPARATUS FOR CARRIER IDENTITY DETERMINATION IN MULTI-CARRIER COMMUNICATION SYSTEMS - Systems and methods are described that facilitate the determination and request of resources a node may wish to reserve. The resources include a plurality of carriers that are shared with other nodes. In an approach, the node determines a condition related to the plurality of carriers; creates an ordering of the plurality of resources; and transmits a resource utilization message (RUM) for one or more of the plurality of resources based on the ordering and the condition. | 2009-10-15 |
20090257359 | System and method for tracking performance and service level agreement compliance for multipoint packet services - A system and method for measuring compliance with a service level agreement for communications. A threshold is set for a core information rate and a user network interface core information rate operable to avoid contention. Frame loss is measured on a core network and legs of the network. A determination is made that the service loss agreement is noncompliant in response to determining there is frame loss and a user network interface core information rate has not been exceeded or the core committed information rate has not been exceeded. | 2009-10-15 |
20090257360 | METHOD AND SYSTEM FOR MONITORING AND CONTROLLING A VIDEO SIGNAL NETWORK - The embodiments described herein provide a method for operating a video signal network. The method comprises: providing a video signal router having a plurality of input ports for receiving input video signals and a plurality of output ports for transmitting a plurality of output video signals and wherein the router has a plurality of monitorable router status conditions; providing a router control system for controlling the configuration of the router; defining, in the router control system, a plurality of predetermined states, wherein each of the predetermined states comprises at least one condition from the group consisting of: one or more signal conditions relating to one or more of the input and output video signals; and one or more router conditions relating to one or more of the monitorable status conditions; for each of the states, defining at least one action; configuring the video signal router to couple at least some of the input ports to at least some of the output ports; monitoring at least some of the input and output video signals and at least some of the router status conditions; in response to the monitored input and output video signals and router status conditions corresponding to one of the predetermined states, transmitting a notification message to the router control system; and initiating an action corresponding to the transmitted notification message. | 2009-10-15 |
20090257361 | METHODS AND APPARATUS FOR DETERMINING COMMUNICATION LINK QUALITY - Methods and apparatus for determining the quality of a communication link transmitting a specified packet type are disclosed. The methodology includes configuring first packets, which share transmission characteristics with a specific packet type, such as a Voice over IP packet, such that the first packets experience similar communication link treatment as the specific packet type. The first packets are then transmitted over the communication link to a quality monitoring server located near a termination equipment of the particular communication link. Second packets, which are transmitted by the server in response to the first packets, are received and evaluated to determine the quality of the communication link based on characteristics of the second packets. Corresponding apparatus are also disclosed. | 2009-10-15 |
20090257362 | WIRELESS COMMUNICATION METHOD AND APPARATUS FOR MANAGING RADIO RESOURCES - During a contention-free period, or silent measurement period, of a first wireless communications channel, signals received on a second wireless communications channel are analyzed. The results of the analysis are used to perform advanced radio resource management functions, such as frequency selection, load balancing, or power management. Each of a plurality of wireless channels may be measured in order to perform the advanced radio resource management functions. During the analysis, an energy detect threshold may be lowered to a minimal value. | 2009-10-15 |
20090257363 | Method and system for intelligent networking trigger contention resolution in IP multimedia subsystem networks - A method of receiving a first InitialIN message, determining if the first InitialIN message is a mobile origination, determining if an mscAddress comprising the first InitialIN message is an IP Multimedia Subsystem (IMS) MSC address, and establishing DMS IN services with an SCF/SCP and performing VCC anchoring for a DMS communication session with a VCC SCF/SCP if the InitialIN is a mobile origination and if the mscAddress is an IMS MSC address. | 2009-10-15 |
20090257364 | Node Discovery in Physically Segmented Logical Token Network - Token authorized node discovery between a plurality of nodes in a downhole networking environment and respective applications for data processing and communication are described herein. | 2009-10-15 |
20090257365 | METHOD OF DISTRIBUTING FILES OVER NETWORK - The present invention discloses a method of distributing files over a network, which can attain a proper balance of transfer rates of active spanning trees used between a transmitting node and a receiving node and minimize the time taken for transferring a large file in a P2P (Peer-to-Peer) environment by forming an optimal set of distribution trees with reference to the link costs between the transmitting node and the receiving node and distributing chunk files through the optimal set of distribution trees. The method comprises the steps of: forming a set of spanning trees between a transmitting node and a receiving node and forming a minimum cost tree group by the sum of the link costs of links constituting each of the spanning trees; adjusting the transfer rate of each spanning tree belonging to the minimum cost tree group in accordance with the link cost of each spanning tree belonging to the minimum cost tree group; and transferring chunk files through the spanning trees whose transfer rate is adjusted. | 2009-10-15 |
20090257366 | FRAME STRUCTURE FOR A WIRELESS COMMUNICATION SYSTEM - A frame format used in a wireless communication system, more particularly an OFDMA TDD wireless communication system, of the kind comprising a base station and a plurality of fixed or mobile subscriber stations, the base station maintaining connections with each of the subscriber stations by performing wireless communication in units of frames having said frame format, and within each frame, allocating resources for data transmission and signalling. | 2009-10-15 |
20090257367 | Half duplex digital communications system and control means - A half duplex digital communications system and control means providing a data interface to a plurality of radio transceivers such as between a personal computer or other information processing device to one or more radio transmitter/receiver systems having a serial data interface in a manner that provides control of the radio and means to send and receive data via the radio without regard to the characteristics of the radio or its serial interface. A common control protocol is employed to control the radio transmitter/receiver device in a generic manner through software implementation, allowing compatibility with future data systems. | 2009-10-15 |
20090257368 | RADIO TERMINAL, RADIO COMMUNICATION SYSTEM, AND RADIO COMMUNICATION METHOD - A radio terminal includes a radio interface configured to allow radio communication with a radio base station, and a controller configured to control switching between a wake-up state in which the radio interface is turned on and a sleep state in which the radio interface is turned off. The radio terminal acquires a reference wake-up timing scheduled as a wake-up timing for switching from the sleep state to the wake-up state. The controller shifts the wake-up timing from the reference wake-up timing. | 2009-10-15 |
20090257369 | RADIO TERMINAL, RADIO BASE STATION, AND RADIO COMMUNICATION SYSTEM - A radio terminal includes: a controller configured to control switching between a wake-up state in which a radio interface is turned on and a sleep-state in which the radio interface if turned off; a battery configured to accumulate electric power to be supplied to the radio interface; a remaining battery amount acquiring unit configured to acquiring a remaining battery amount being a remaining amount of electric power accumulated in the battery. The controller performs switching from the sleep state to the wake-up state, according to a communication order where own radio terminal performs radio communication. The own-terminal communication order is scheduled based on the remaining battery amount. | 2009-10-15 |
20090257370 | POWER MANAGEMENT METHOD - A power management method. The power management method for a wireless network having a plurality of stations (STAS) comprises receiving a data frame, detecting a destination STA in accordance with the data frame, and entering a low power state if not the destination STA for a first power-save (PS) duration determined according to a network allocation vector (NAV) of each STA not the destination STA, updated with a duration information of the received data frame duration determined according to a network allocation vector (NAV) of the data frame. | 2009-10-15 |
20090257371 | RADIO COMMUNICATION BASE STATION APPARATUS AND TRANSMISSION METHOD IN THE RADIO COMMUNICATION BASE STATION APPARATUS - Provided is a base station capable of SFN transmission of multicast data by using an empty section of an allocated resource. In this base station, an arrangement unit ( | 2009-10-15 |
20090257372 | METHODS AND APPARATUS FOR IMPROVED DECODING OF HYBRID AUTOMATIC REPEAT REQUEST TRANSMISSIONS - A method for improved decoding of hybrid automatic repeat request (H-ARQ) transmissions may include attempting to verify a physical layer (PHY) cyclic redundancy check (CRC) for a candidate H-ARQ encoder packet. If the PHY CRC is not verified, medium access control layer protocol data units (MPDUs) may be identified in the candidate H-ARQ encoder packet, and attempts may be made to verify a medium access control layer (MAC) CRC for each MPDU in the candidate H-ARQ encoder packet. | 2009-10-15 |
20090257373 | Methods and Apparatus for Coverage Verification in a Wireless Sensor Network - Methods and apparatus are provided for improved coverage verification schemes in a wireless sensor network that do not require information about the location of sensor nodes in the wireless sensor network. Coverage holes are detected by a first node in a wireless sensor network by obtaining an estimate of a distance to each of a plurality of additional nodes in a transmission radius of the first node; determining a relative location of each of the plurality of additional nodes in the coordinate system of the first node; identifying border segments of a sensing border of the first node, where each of the border segments comprises a section of a sensing border of the first node that is covered by a sensing radius of at least one of the additional nodes; and determining if a coverage hole exists for the first node by determining if a plurality of the border segments comprise a cyclic segment sequence. The coordinate system comprises r-map coordinates of the first node and the additional nodes, where r is based on a transmission radius of the first node | 2009-10-15 |
20090257374 | MOBILE MULTIMEDIA TERMINAL FOR A CALM SYSTEM AND A METHOD FOR OFFERING CONTINUOUS MULTIMEDIA COMMUNICATIONS - A mobile multimedia terminal for a CALM (Continuous Air interface for Long and Medium range) system includes, a wireless multimedia communications transceiver for transmitting and receiving signals over at least two wireless media; a communications link determination and management unit for acquiring interface IDs of the wireless media over which the wireless multimedia communications transceiver receives wireless multimedia signals and establishing communications channels for each of the wireless media whose interface IDs are acquired; and a wireless communications control unit for controlling the communications link determination and management unit to acquire the interface IDs and establish the communications channels, and for controlling data transmission and receipt via the established channels. | 2009-10-15 |
20090257375 | ACCESS GATEWAY APPARATUS, BASE STATION APPARATUS, COMMUNICATION CONTROL SYSTEM AND COMMUNICATION CONTROL METHOD - A communication control system capable of reducing the traffic amount, CPU's processing load and channel bands related to a location registering process. In this system, a paging part ( | 2009-10-15 |
20090257376 | INTELLIGENT ACCESS POINT FOR DELIVERING LOCATION BASED INFORMATION - A method for delivering location based information in wireless zone is disclosed. All the location based information is stored in the access point itself thus eliminating the need for backend server. Access point has the intelligence to deliver information in customized to each requesting device's display capability. To provide seamless access to local information the user will get a default web page once the device connects to access point and tries to access internet. This web page will act as a gateway to all the location based information available in the access point. Along with location based information advertisements can also be delivered to the end user in a very cost effective and targeted manner. | 2009-10-15 |
20090257377 | REDUCING BUFFER SIZE FOR REPEAT TRANSMISSION PROTOCOLS - A wireless communication device includes a receive buffer and control logic coupled to the receive buffer. The control logic implements an algorithm to selectively drop data blocks in the receive buffer once a predetermined fill threshold for the receive buffer is reached. The receive buffer is sized so that a drop activity level for the algorithm is within a predetermined range. | 2009-10-15 |
20090257378 | METHOD AND SYSTEM FOR CONTROLLING A REAL-TIME COMMUNICATIONS SERVICE - A real-time media session is established between user equipment and a media communication server via a serving access network. According to the Invention, dummy data (e.g. a dummy message) is sent in order to maintain a dedicated channel during the inactive periods of a real-time media session or to trigger an early setup of a dedicated channel in the access network. In this manner, user equipment logged on to a real-time media (e.g. PoC) session are prevented from going to a radio resource idle state, thus avoiding potential long extra delays during real-time media (e.g. PoC) service usage. The invention further allows the sending and receiving user equipment to set up dedicated channels (DCH) already during the start-to-talk procedure of the transmitting user equipment, which in turn potentially reduces end-to-end delays during the conversation. | 2009-10-15 |
20090257379 | Methods and apparatus for network capacity enhancement for wireless device coexistence - Methods and apparatus for enhancing network capacity in a network comprising multiple wireless communication that overlap at least partly in frequency spectrum. In one embodiment, the apparatus comprises a portable device such as a laptop or smartphone having both a WLAN (e.g., Wi-Fi) interface and a PAN (e.g., Bluetooth) interface which each operate with approximately the same frequency range. One variant places the WLAN interface into a power-saving mode as a default, thereby mitigating interference with the PAN interface in cases where the WLAN interface is not in active use. In another variant, an aggressive PAN management algorithm is used to enforce network policy on the PAN interface, thereby mitigating interference between the PAN interface and the WLAN interfaces of other devices in the network (as well as the parent device). AP-based variants are also described. Methods of operation and doing business utilizing the aforementioned apparatus are also disclosed. | 2009-10-15 |
20090257380 | CHANNEL ASSIGNMENT PROTOCOL - In an example embodiment, a topology based channel assignment method for mitigating contention between overlapping radio coverage areas in a wireless “mesh” network topology. A central controller compiles radio overlap information and executes a Tiered Graph Coloring Algorithm, which is used to mitigate contention between overlapping radio coverage areas. In general, the radio channel for each Channel Assignment Cluster (Basic Service Set) is selected so that the aggregate radio coverage area of the Channel Assignment Cluster does not overlap with the radio coverage areas of neighboring Channel Assignment Clusters and fixed interference sources. In the tiered algorithm, a Channel Assignment Cluster is represented as a single vertex, interference sources are represented as “fixed” vertices with fixed color assignments, and “overlapping” vertices are interconnected by “edges.” Vertices are “tiered” so that overlap mitigation is prioritized for higher-traffic radios. | 2009-10-15 |
20090257381 | RADIO COMMUNICATION BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD USED FOR MULTI-CARRIER COMMUNICATION - Provided is a base station capable of suppressing increase of overhead of allocation result report in frequency scheduling in multi-carrier communication and obtaining a sufficient frequency diversity effect. In the base station, encoding units ( | 2009-10-15 |
20090257382 | Method, apparatus and computer program for permutation and subchannelization - M physical resource blocks PRBs are allocated for localized resource allocation LRA and N-M PRBs are allocated for distributed resource allocation DRA. Each PRB has U subcarriers. Subcarriers of the N PRBs are permuted to result in N subchannels. Serially for each m | 2009-10-15 |
20090257383 | FEEDBACK METHOD FOR PERFORMING A FEEDBACK BY USING A CODEBOOK IN MIMO SYSTEM - A feedback method for performing a feedback by using a codebook in Multiple Input Multiple Output (MIMO) system includes receiving, by the mobile station, a MIMO mode type information, generating feedback information by using the codebook selected according to the MIMO mode type information, and transmitting the feedback information to the base station. The codebook includes a SU-MIMO codebook and a MU-MIMO codebook, and the MU-MIMO codebook is formed by extracting codebook elements from the SU-MIMO codebook. As a result, the method maximizes a system throughput simultaneously while effectively reducing an amount of feedback information. | 2009-10-15 |
20090257384 | METHOD FOR MODE ADAPTATION IN MIMO SYSTEM - A mode adaptation method for performing mode switching between a single-user MIMO (SU-MIMO) mode and a multi-user MIMO (MU-MIMO) mode includes reporting, by a base station, a MIMO feedback mode to a mobile station, receiving a feedback information determined on the basis of the MIMO feedback mode from the mobile station; and determining a MIMO feedback mode based on the feedback information. The MIMO feedback mode indicates whether it is single-user MIMO or multi-user MIMO and includes a number of mobile stations (MSs) transferred at one time. As a result, the method maximizes a system throughput simultaneously while effectively reducing an amount of feedback information. | 2009-10-15 |
20090257385 | FILTERING SEMI-PERSISTENT SCHEDULING FALSE ALARMS - A scheduled data communication system of an access node and terminal supports recurring communications of small data amounts such as Voice over IP (VoIP). In order to make error checking more robust in a random access response (RAR), such as for semi-persistent scheduling (SPS) for VoIP, a portion of a grant or assignment payload has a constraint imposed that can be verified as a condition precedent to determining a valid grant or assignment rather than only relying upon a validity check field, such as a cyclic redundancy check (CRC). Thereby, incorrect validation of a grant or assignment is avoided for dynamic scheduling or for semi-persistent scheduling, the latter causing a persistent error. | 2009-10-15 |
20090257386 | METHOD AND DEVICE FOR MANAGING ALLOCATION OF DATA TRANSMISSION PATHS IN A MESHED COMMUNICATIONS NETWORK, CORRESPONDING COMPUTER PROGRAM PRODUCT AND STORAGE MEANS - A method for managing allocation of paths for transmission, in packets of symbols, of at least a first data content, each content being transmitted from a source node up to a destination node in a meshed communications network comprising a plurality of nodes, each destination node receiving a plurality of copies of a same packet of symbols of the content transmitted to said destination node by a source node, each copy being received by the destination node via a distinct transmission path directly from the source node or via at least one relay node of the meshed communications network, the packets being encoded with an error correction code enabling decoding by erasure of packets symbols. Such a method comprises the following steps: selecting a set of transmission paths from the source node up to the destination node for the transmission of copies of at least one packet of the first content, for which an estimated first number of erasures of symbols of the at least one packet is smaller than a determined threshold, the first number of erasures being estimated from a piece of information on quality of transmission that is determined and associated with each of the selected transmission paths, the threshold being determined as a function of an erasure correction capability of the error correction code; allocating the selected transmission paths to the transmission of the first content from said source node up to said destination node. | 2009-10-15 |
20090257387 | FAST CARRIER ALLOCATION IN MULTI-CARRIER SYSTEMS - Providing for fast allocation of additional carriers in multi-carrier wireless communication systems is described herein. By way of example, high layer protocols can be employed to allocate additional carriers to UEs in a wireless network. Additionally, management of the additional carriers can be accomplished via high speed lower layer signaling protocols. Management can involve activating/deactivating the additional carriers, instructing the UE to provide carrier feedback, monitor pilot or control channels of such carriers, or the like. Because lower layer signaling is relatively fast, activation or deactivation of the additional carrier can be quickly implemented in response to contemporaneous changes in channel conditions. Thus, changes to signal quality or network loading can be determined and utilized to customize carrier activation in near real-time, providing efficient resource allocation while conserving UE battery life. | 2009-10-15 |
20090257388 | SYSTEMS AND METHODS TO DEFINE CONTROL CHANNELS USING RESERVED RESOURCE BLOCKS - Systems and methodologies are described that facilitate defining new control channels in legacy wireless networks. Control data resources for new systems can be defined over resources reserved for general data communications in the legacy wireless network specification. In this regard, legacy devices can still be supported by devices implementing new control data resources, and the new control data resources can avoid substantial interference that is typically exhibited over legacy control and/or reference signal resources by instead using the general data resources. In addition, new system devices can avoid scheduling data communication resources over the new control resources to create a substantially non-interfered global control segment. Control data can be transmitted over the segment using beacon-based technologies, reuse schemes, and/or the like. | 2009-10-15 |
20090257389 | METHOD AND APPARATUS FOR EFFICIENT SCHEDULING IN BROADBAND WIRELESS ACCESS NETWORKS - The various inventive embodiments relate to arrangement of information elements (IEs) for persistent and/or dynamic allocations in a wireless broadband network and include optimization techniques to eliminate the repetitive information fields from the downlink (DL)-Persistent-IEs, uplink (UL)-Persistent-IEs, DL-IEs, and UL-IEs. Elimination of repetitive information fields reduces MAP overhead. In addition embodiments relate to methods to use the same hybrid automatic repeat request (HARQ) region to contain persistent as well as non-persistent allocations. The use of the same HARQ region for persistent as well as non-persistent allocations further reduces the MAP overhead as it requires a single header to define the HARQ region instead of the two headers that are required to define two different HARQ regions: one for persistent allocation and the second one for non-persistent allocations. | 2009-10-15 |
20090257390 | SYSTEM AND METHOD TO ENABLE UPLINK CONTROL FOR RESTRICTED ASSOCIATION NETWORKS - Systems and methodologies are described that facilitate resource management in a wireless communication system. Various techniques described herein can enable a network cell in a wireless communication system (e.g. a macro cell) to mitigate the effects of interference on other surrounding network cells (e.g., femto cells embedded within the coverage of the macro cell). For example, a network cell can allocate control resources that overlap control resources of a nearby cell and assign resources within the region of overlap only to users that will not cause substantial interference to the nearby cell. As another example, a network cell can utilize a control channelization that partially coincides with a control and/or random access channelization of a nearby cell. The network cell can subsequently elect not to use the control resources in the coinciding region in order to enable the nearby cell to control the effects of interference though data scheduling. | 2009-10-15 |
20090257391 | TRANSMITTING/RECEIVING SYSTEM AND METHOD OF PROCESSING DATA IN THE TRANSMITTING/RECEIVING SYSTEM - A transmitting/receiving system and a data processing method of the same are disclosed herein. The receiving system may include a receiving unit, a signaling decoder, and an FIC handler. The receiving unit receives a broadcast signal including mobile service data configuring a data group. Herein, a transmission frame consists of multiple sub-frame, a sub-frame consists of multiple slots, and the data group is allocated to at least one slot. The signaling decoder acquires an FIC segment from the broadcast signal. Herein the FIC segment consists of an 35-byte FIC segment payload including a portion of a signaling information between at least one ensemble and at least one mobile service, and an 2-byte FIC segment header including current/next (C/N) indication information indicating whether data of the FIC segment payload corresponds to information of a current transmission frame or to information of a next transmission frame. The FIC handler recovers at least one of an FIC chunk including signaling information between at least one ensemble and at least one mobile service of the current transmission frame and an FIC chunk including signaling information between at least one ensemble and at least one mobile service of the next transmission frame, from the payload of each FIC segment by using the C/N indication information. | 2009-10-15 |
20090257392 | System and Method for Efficiently Packing Two-Dimensional Data Bursts in a Downlink of a Wireless Communications System - A system and method for packing two-dimensional data bursts in a downlink of a wireless communications system is provided. A method includes allocating resource units to users in the wireless communications system, and packing allocated resource units into rectangular bursts for transmission. The allocating is based on delay characteristics of the user and an amount of information to be transmitted to each user. | 2009-10-15 |
20090257393 | TECHNIQUES TO MANAGE CHANNEL PREDICTION - A system, apparatus, method and article to manage channel prediction for a wireless communication system are described. The apparatus may include a media access control processor to perform channel prediction, and a transceiver to communicate information using the channel prediction. Other embodiments are described and claimed. | 2009-10-15 |
20090257394 | COMMUNICATING CONTROL INFORMATION IN MOBILE COMMUNICATION SYSTEM - The present invention relates to communicating control information in a mobile communication system, wherein the control information of a mobile terminal for scheduling an uplink channel may be notified to a network more quickly with less power. The present invention comprises transmitting a data block on a first physical channel, wherein the data block comprises control information, and transmitting an indicator having a specific value on a second physical channel for indicating the transmission of the control information on the first physical channel. | 2009-10-15 |
20090257395 | CQICH ALLOCATION REQUEST HEADER FOR COMMUNICATING FEEDBACK INFORMATION - A method of communicating feedback information between a mobile station and a base station comprises determining a need to request bandwidth allocation; providing information to a base station according to the determining, wherein the information indicates bandwidth allocation for a fast feedback channel; and performing communication with the base station upon bandwidth allocation according to the provided information. | 2009-10-15 |
20090257396 | System and method of adaptive frequency hopping with look ahead interference prediction - A novel and useful adaptive frequency hopping scheme for wireless devices and networks operating in a congested environment of similar devices, where capacity maximization is desired. The hopping sequence of each wireless link is dynamically adapted such that the impact of the surrounding interference is minimized and the interference induced onto the coexisting systems is also minimized. The scheme detects the repetitive presence of interference on a particular channel and comprises a replacement mechanism for swapping the interfered frequency-channel with one that would be clear for that particular time-slot. The mechanism detects interference during a redundant portion of the transmission (i.e. header or trailer) without having to experience packet failures (i.e. data loss). If the interference impact (e.g. corrupted header bits) exceeds a predefined threshold, that frequency channel is declared temporarily unusable for that time slot and is replaced with another in accordance with a frequency replacement policy. Periodic interference at a particular frequency, originating from a coexisting system of similar operating parameters, may also be detected at instances that are distant from the timeslots for which that particular frequency is to be used, such that frequency replacement in the hopping sequence can be scheduled ahead of time and collisions would be avoided altogether. | 2009-10-15 |
20090257397 | Method for proactive coordinator appropriation for wireless personal area network - Provided is a method for switching a piconet device to a coordinator in a piconet. The method receives the latest order of precedence as the next PNC information from the current PNC. Thereafter, the method detects a P-CTA allocated to devices of the piconet using a beacon of a superframe received from the PNC. On failing to receive a beacon from the PNC, the method detects whether “beacon non-receipt” indicating information that is transmitted between piconet devices during the detected P-CTA. If the “beacon non-receipt” indicating information is not detected, the method does not perform a PNC appropriation operation. If the “beacon non-receipt” indicating information is detected, the method determines that the PNC has left the piconet without performing a normal PNC handover procedure and thus performs a PNC appropriation operation according to the order of precedence information. | 2009-10-15 |
20090257398 | RADIO COMMUNICATION SYSTEM AND COMMUNICATION METHOD - A radio communication system includes a plurality of base stations with supporting a plurality of radio access schemes. Two or more base stations support a predetermined radio access scheme in common. A mobile station makes initial connection to one of the two or more base stations according to the predetermined radio access scheme, to allow communication with the one base station. | 2009-10-15 |
20090257399 | Method and Apparatus for Handling Handover Procedure - The present invention provides a method for handling a handover procedure for a Radio Resource Control (RRC) layer in a user equipment (UE) of a wireless communication system. The method includes steps of indicating occurrence of a handover procedure to a Packet Data Convergence Protocol (PDCP) layer of the UE when receiving an RRC Connection Reconfiguration message for triggering the handover procedure, applying a new security configuration to the PDCP layer if the RRC Connection Reconfiguration message includes an information element (IE) for providing the security configuration, and requesting a Medium Access Control (MAC) layer of the UE to initiate a random access procedure for the handover procedure. | 2009-10-15 |
20090257400 | METHOD AND APPARATUS FOR HANDOVER BETWEEN A NETWORK SUPPORTING PROXY MOBILE IP AND A NETWORK SUPPORTING MOBILE IP - A method and an apparatus for supporting handover between a first network supporting proxy mobile Internet Protocol (IP) (PMIP) and a second network supporting mobile IP (MIP) are disclosed. A PMIP entity in the first network may perform home agent (HA) discovery such that the PMIP entity may select an HA that responds with a pre-determined code indicating that a binding entry for the WTRU exists in the HA. The PMIP entity may store the HA IP address in an authentication, authorization, and accounting (AAA) server. The PMIP entity may retrieve the HA IP address for the WTRU from the AAA server when the WTRU is readmitted, and perform a binding update using the HA IP address. A media independent handover (MIH) client may trigger an HA discovery to obtain an HA IP address without performing MIP registration. The MIP client may retain the HA IP address when disabled. | 2009-10-15 |
20090257401 | COMMUNICATION SYSTEM, MOBILE ROUTER AND HOME AGENT - The present invention provides a new technique, according to which inefficient and redundant routing can be eliminated, which may occur when the fast handover is applied to network mobility and which may cause delay. According to this technique, a mobile router (MR) | 2009-10-15 |
20090257402 | INTRA-SYSTEM HANDOFF METHOD - The present invention provides an intra-system handoff method, comprising the following steps: S | 2009-10-15 |
20090257403 | METHOD OF COMMUNICATING IN WIRELESS NETWORK - The present invention relates to a handover method that a current coordinator transfers a coordinating function of controlling a network to a different device configuring the network. The present invention relates to a method of selecting an optimal device as a coordinator in selecting the different device using priority information decided by a prescribed evaluation reference. And, the present invention relates to a method of simplifying a procedure in a manner of transmitting relevant information together with a handover request message. In a wireless network including a coordinator, a secondary coordinator is decided in advance. If the coordinator is suddenly unable to perform a function, the present invention relates to a method of enabling the function of the coordinator to be performed by the decided secondary coordinator. Thus, a process for transferring the coordinating function without the handover process is called a recovery process. The present invention relates to the recovery method and a method of deciding a secondary coordinator to perform a recovery. In the method of deciding the secondary coordinator, a method of deciding a more proper coordinator using information on coordinator priority is provided. | 2009-10-15 |
20090257404 | GENERATING A PUBLIC LONG CODE MASK IN A MOBILE COMMUNICATIONS SYSTEM - A method of generating a public long code mask (PLCM) in a mobile station in a wireless mobile communication network is provided. The method comprises receiving a message in the mobile station from a base station when the mobile terminal is handed off, the message comprising a first field including a first value, a second field including a second value, and a third field including least significant bits of the PLCM; and generating the PLCM using the least significant bits included in the third field. | 2009-10-15 |
20090257405 | METHOD AND APPARATUS FOR CARRIER SELECTION IN MULTI-CARRIER COMMUNICATION SYSTEMS - Systems and methods are described that facilitate the determination and request of resources a node may wish to reserve. The resources include a plurality of carriers that are shared with other nodes. In an approach, the node determines a condition related to a plurality of resources; identify a desired amount of resources from the plurality of resources based on the condition; and transmit a resource utilization message (RUM) for at least one of the plurality of resources based on the desired amount of resources. | 2009-10-15 |
20090257406 | REDUCTION OF TRANSMISSION OVERHEAD IN A WIRELESS COMMUNICATION SYSTEM - Methods and apparatuses for reducing the overhead associated with transmitting MAPs are provided by grouping client stations in different constellations into one of two or more groups/allocations based partially upon their respective channel conditions. As a result of grouping, client stations within each group/allocation share a single resource allocation and in addition, the different groups of client stations can be scheduled such that variable modulation repeat-coding schemes can be implemented for map transmissions to each group, thereby reducing the repetition rates and overhead associated with map transmissions. | 2009-10-15 |
20090257407 | PREAMBLE RETRANSMISSION METHOD IN MOBILE COMMUNICATIONS SYSTEM - A preamble retransmission method in an Evolved Mobile Telecommunications System (E-UMTS) system is provided by which a terminal transmits a Radio Access Channel (RACH) preamble to a base station, the base station compares the received RACH preamble with preset specific criteria and requests retransmission for the RACH preamble to the terminal according to the comparison in order to reduce the probability of data transmission failure due to inaccuracy of time synchronization and to decrease interference with transmissions by other terminals. | 2009-10-15 |
20090257408 | METHOD FOR TRANSMISSION TIME INTERVAL BUNDLING IN THE UPLINK - A method and apparatus for supporting uplink Transmission Time Interval (TTI) bundling in Long Term Evolution (LTE) is provided. Described are related method and apparatus for signaling, activation/deactivation and wireless transmit/receive unit (WTRU) behavior. | 2009-10-15 |
20090257409 | METHOD FOR GENERATING DOWNLINK FRAME, AND METHOD FOR SEARCHING CELL - The present invention relates to a method for generating a downlink frame including generating a first short sequence and a second short sequence indicating cell group information, generating a first scrambling sequence determined by the first synchronization signal, generating a second scrambling sequence determined by the first short sequence, scrambling the first short sequence with the first scrambling sequence, scrambling the second short sequence with at least the second scrambling sequence, and mapping a second synchronization signal including the scrambled first short sequence and the scrambled second short sequence in the frequency domain. | 2009-10-15 |
20090257410 | METHOD FOR SUPERFRAME MANAGEMENT AND COORDINATOR THEREOF - A method and a coordinator of superframe management are disclosed. The method includes receiving, by a coordinator, a GTS request from a node; determining the type of the node; allocating GTS in an active period based on GTS characteristics carried in the GTS request when the node is determined as an energy restricted device; allocating GTS in an active period and an inactive period based on GTS characteristics carried in the GTS request when the node is determined as an energy unrestricted device. As can be seen from the method of the present invention, for an energy unrestricted device, allocated GTS may extend to an inactive period. Since the length of slots allocated to the energy unrestricted node is extended, the QoS of the energy unrestricted node is improved and guaranteed. Meanwhile, since the method of the present invention considers and makes full use of the inactive period in the superframe, the network throughput is improved significantly. | 2009-10-15 |
20090257411 | DATA GENERATION APPARATUS, DATA GENERATION METHOD, BASE STATION, MOBILE STATION, SYNCHRONIZATION DETECTION METHOD, SECTOR IDENTIFICATION METHOD, INFORMATION DETECTION METHOD AND MOBILE COMMUNICATION SYSTEM - To reduce the process of a cell search including sector identification without increasing loads on a transmission/reception apparatus. A synchronization channel (SCH) included on downlink in a multicarrier mobile communication system is multiplied by a sector specific code and a cell specific code (step S | 2009-10-15 |
20090257412 | SYSTEM AND METHOD FOR GENERIC ACCESS NETWORK REGISTRATION BY A MOBILE STATION DURING NETWORK CONGESTION - Systems and methods for providing mobile stations (“MS”) registration to a generic access network (“GAN”) via a wireless LAN interface are disclosed. The MS may receive a rejection message from a GAN controller with a “network congestion” indication set. The MS may also receive a “connection status” information element as part of the rejection message. The MS can determine from the information element whether the MS can release the connections made to a security gateway (“SEGW”) and to the GAN controller and whether it can release its WLAN connection facility. When the MS releases these connections, battery power is conserved while performing a timer decrement loop. At the end of the timer decrement loop, the MS makes another registration request. The network can reallocate resources when the MS releases the connections to the SEGW and the GAN controller. Methods for performing the GAN registration during network congestions are described. | 2009-10-15 |
20090257413 | METHOD AND SYSTEM FOR FACILITATING CHANNEL MEASUREMENTS IN A COMMUNICATION NETWORK - A method and system for facilitating channel measurements in a communication network is disclosed. The method includes contending for a control channel to reserve a logical subchannel of a data channel. The control channel operates in a first frequency band and the data channel operates in a second frequency band. Further, the method includes sending an announce message on the control channel for announcing a reservation at a particular time period of the logical subchannel of the data channel when the contention for the control channel is successful, sending a channel sense message on the logical subchannel of the data channel at the particular time period to facilitate at least one other node to perform channel measurements based on the channel sense message, and monitoring the data channel and performing channel measurements based on at least one other channel sense message received from the at least one other node. | 2009-10-15 |
20090257414 | Heterogeneous MAC protocol for multiple base stations in wireless networks - This disclosure describes a new Medium Access Control (MAC) protocol that combines contention-free and contention-based MAC protocols into a heterogeneous MAC protocol used for forwarding VoIP traffic in VoIP systems on wireless networks using multiple base stations which addresses the need to transport high bit-rate data to multiple users over wired and wireless means. | 2009-10-15 |
20090257415 | Heterogeneous MAC protocol for multiple base stations in wireless networks - This disclosure describes a new interference avoidance Medium Access Control (MAC) protocol that combines contention-free and contention-based MAC protocols into a heterogeneous MAC protocol used for forwarding VoIP traffic in VoIP systems on wireless networks using multiple base stations which addresses additional interference elimination and the need to transport high bit-rate data to multiple users over wired and wireless means. | 2009-10-15 |
20090257416 | ACCESS POINT - An access point has a connection to a wide area network, and is configured to allow a device to connect thereto, and includes an Application Programming Interface for allowing a remote application to connect to the access point over the wide area network, and to obtain information relating to the device connected to the access point. In particular, the access point is configured to allow a device to connect thereto over a wireless interface, and to provide bearer translation such that traffic over the wireless interface can be directed over the wide area network. The Application Programming Interface may then allow the application to obtain information relating to a connection status of a wireless device associated with the access point. | 2009-10-15 |
20090257417 | APPARATUS, AND ASSOCIATED METHOD, FOR FACILITATING RADIO CONTROL SYSTEM OPERATION WITH AN ICS-CAPABLE WIRELESS DEVICE - An apparatus, and an associated method, for facilitating communication operations with a wireless device that is ICS or DTM capable. Signaling protocols and apparatus are provided for operation of the wireless device when an ICS with the wireless device is ongoing, and the device leaves an area that provides for ICS as well as when the ICS can be provided using circuit-switched connections. | 2009-10-15 |
20090257418 | APPARATUS, AND ASSOCIATED METHOD, FOR FACILITATING RADIO CONTROL SYSTEM OPERATION WITH AN ICS-CAPABLE WIRELESS DEVICE - An apparatus, and an associated method, for facilitating communication operations with a wireless device that is ICS or DTM capable. A message generator is provided, configured to generate a network-terminated message, the network-terminated message including a media feature tag that identifies support of ICS. When transmitted to a network node, the message is detected. And, a wireless-device-terminated message that provides for mapping of a SIP URI into a calling name presentation. | 2009-10-15 |
20090257419 | METHOD OF DETERMINING TRANSMISSION RATE OF CONTROL RESPONSE FRAME FOR ACKNOWLEDGING DATA RECEIPT IN WIRELESS LAN - A method is provided for determining a transmission rate of a control response frame for acknowledging data receipt in a wireless local area network. The method includes obtaining transmission parameters of a transmitting station from a data transmission frame received from the transmitting station, searching a receiving station for transmission parameters which correspond to the transmission parameters of the transmitting station, determining the transmission rate of the control response frame according to transmission parameters of the receiving station if the transmission parameters corresponding to the transmission parameters of the transmitting station are found in the receiving station, and determining a maximum rate among a set of basic transmission rates to be the transmission rate of the control response frame if the transmission parameters corresponding to the transmission parameters of the transmitting station are not found in the receiving station. | 2009-10-15 |
20090257420 | Process Control System With Enhanced Communication Throughput Using Frequency Agility - A process control system having wireless nodes (field devices, routers, wireless gateways, etc.) communicating with enhanced throughput using frequency hopping. The frequency channel using which each node transmits is determined by frequency agility/frequency hopping technique. Multiple nodes then transmit the packets in their respective channels, but in overlapping duration. In one embodiment such a technique is employed in combination with TDMA, with the boundaries of time slots being ‘global’ (same for all the nodes in the network) and thus the overlapping duration equals the duration of the time slot. In an alternative embodiment employed in combination of SDMA, each node transmits in a (substantially) non-overlapping corresponding beam area, but without reference to global boundaries. In yet another alternative embodiment, a combination of SDMA, TDMA and overlapping duration is used. | 2009-10-15 |
20090257421 | WIRELESS COMMUNICATION SYSTEM, MOBILE STATION DEVICE, AND RANDOM ACCESS METHOD - A wireless communication system includes a base station device and a mobile station device that tries a random access to the base station device. The mobile station device determines an upper limit of a random backoff time representing an interval from when the random access fails to when another random access is retried based on a relationship between the mobile station device and the base station device. | 2009-10-15 |
20090257422 | TIME SLOT SYNCHRONIZED, FLEXIBLE BANDWIDTH COMMUNICATION SYSTEM - One or more frame slots to each transceiver are allocated for communication within each message cycle. The number of frame slots allocated can be dynamically adjusted to accommodate variable traffic loads per transceiver, and an offset of the frame slots within the message cycle is preferably predefined to provide a uniform distribution among the transceivers. The design of the transceiver is independent of the particular application, having at least one programmable parameter that controls the number of frame slots allocated within the message cycle. By controlling the number of frame slots allocated to a transceiver, the amount of inactive time, and hence battery life, can be controlled. When a conflict occurs among multiple transceivers having pending messages at the same frame slot, the allocation of the frame slot to a transceiver is based at least in part on the resultant lag time to each transceiver. | 2009-10-15 |
20090257423 | System and Method for Channel Status Information Feedback in a Wireless Communications System - A system and method for channel status information feedback in a wireless communications system is provided. A method includes receiving a transmission containing feedback information from a mobile station (MS) having N total antennas, M receive/transmit antennas, N−M receive-only antennas, wherein N and M are integers and N>M, decoding the received transmission, computing estimates of CSI for channel elements of N−M receive-only antennas using the decoded transmission, computing estimates of CSI for channel elements of M receive/transmit antennas using channel reciprocity, and computing a precoding matrix from the channel elements for the N−M receive-only antennas and the M receive/transmit antennas. | 2009-10-15 |
20090257424 | TRANSMISSION METHOD, SYSTEM, TRANSMITTER, RECEIVER AND METHOD FOR REALIZING INFORMATION TRANSMISSION - A transmission method includes: confirming a reference time; according to the bit property of the data to be transmitted and the reference time, inserting the time slice signal into a special time position of a data frame; transmitting the data frame in which the time slice signal has been inserted and the time slice signal. And a method for realizing information transmission includes: according to the information unit to be transmitted, the transmitter sets the time parameters of the signal transmission during a special time period; the receiver receives the information unit according to the property of the received signal in a determined time period. This invention also provides a transmission system, a transmitter and a receiver. This invention can transmit signaling and messages among multiple systems, in order to solve the signaling interaction problem in the processes of coexisting negotiation and quick switching of the multi-mode terminal in a multi-system or a mixed type network. | 2009-10-15 |