Class / Patent application number | Description | Number of patent applications / Date published |
370349000 | Using messages having an address field as header | 73 |
20080212562 | Method and Apparatus For Facilitate Communications Using Surrogate and Care-of-Internet Protocol Addresses - A wireless access point ( | 09-04-2008 |
20080219237 | Multicast support by mobile routers in a mobile ad hoc network - In one embodiment, a mobile router receives a multicast-supported router advertisement message from an attachment mobile router in a mobile ad hoc network, the multicast-supported router advertisement message specifying an attachment prefix and a multicast-capable identifier. The mobile router attaches to the attachment mobile router in response to the multicast-supported router advertisement message and according to a protocol requiring establishment in the mobile ad hoc network of a tree topology having a single multicast clusterhead, and selects a default attachment address within an address space of the attachment prefix. The mobile router receives a multicast request, from an attached node, for receiving a multicast stream, and the mobile router outputs a neighbor advertisement message with multicast extension, to the attachment router, that specifies that access to the multicast stream is requested via the default attachment address. | 09-11-2008 |
20080240071 | High-Density Wireless Local Area Network - A data communication system includes an access point and a plurality of stations each for exchanging wireless data communication messages with the access point. At least some of the messages are in a format that includes at least one message header and a plurality of data units. Each of the data units includes a respective data unit header and a respective data frame. Each data unit header identifies a respective one of the stations as a recipient to receive the respective data frame of the data unit. | 10-02-2008 |
20080259901 | Adaptive coding and modulation for synchronous connections - A method for communication includes accepting input data from two or more data sources, one or more of which include continuous synchronous tributaries, for transmission over a wireless communication link having a variable data rate. Relative priorities are assigned to the respective data sources. A currently-available data rate of the communication link is determined. The input data accepted from the data sources is multiplexed to produce a composite data stream. The input data of at least one of the tributaries is selectively omitted from the composite data stream based on the respective relative priorities, in order to match the data rate of the composite data stream to the currently-available data rate of the communication link. The composite data stream is transmitted over the communication link. | 10-23-2008 |
20080259902 | HEADER COMPRESSION AND PACKET TRANSMISSION METHOD IN SENSOR NETWORK AND APPARATUS THEREFOR - A header compression and packet transmission method in a sensor network and an apparatus therefor, for selecting technologies related to Internet Protocol (IP) header compression according to characteristics of each node, and processing the technologies. The header compression and packet transmission method and apparatus therefor distinguishes a node supporting the adaptation layer function and a node that does not support the adaptation layer function, and determines whether to compress the packet, thereby enabling a node transmitting data to transmit the data having a proper form that is acceptable to a sensor node receiving the data. By doing so, an efficient packet transmission is possible. | 10-23-2008 |
20080259903 | Error control method, medium access control (MAC) frame designing method, and terminal registration method in wireless communication system, and recording medium - The MAC frame in a wireless communication system includes a terminal ID allocated to each of multiple terminals. At least one connection ID is allocated to each terminal having the terminal ID, and sub-carrier allocation information is allocated to each connection having the connection ID. The sub-carrier allocation information includes a sub-carrier allocation status for each sub-carrier, and the number of allocated information bits for each sub-carrier. The sub-carrier allocation status and the number of allocated information bits for each sub-carrier can be allocated, by sub-carriers, to the sub-carrier allocation information using a same number of bits; or the information on the sub-carrier allocation status is first allocated to the sub-carrier allocation information and the number of allocated information bits for each sub-carrier is allocated. | 10-23-2008 |
20080267163 | APPARATUS AND METHOD FOR MOVING A RECEIVE WINDOW IN A RADIO ACCESS NETWORK - A method of moving a receiving window in a wireless mobile communication system, wherein the AM RLC of the transmitting side sends information of the last discarded SDU regardless of continuity of the discarded SDUs. The AM RLC of the receiving side checks whether all SDUs from the start point of the receiving window up to the last discarded SDU are successfully received, delivers the SDUs that are successfully received to an upper layer, and discard only those SDUs that are not successfully received. | 10-30-2008 |
20080285537 | System and method for communicating packet in a wireless multicast and broadcast communication network - A method and system for communicating packets in a Wireless Multicast and Broadcast communication network is provided. The method includes selecting a Modulation and Coding Scheme (MCS) for transmission of a packet. The packet is then transmitted using the selected MCS on at least one of a subset of available time slots, a subset of available frequency sub-carriers and a subset of available antennas. Thereafter, it is autonomously decided whether the plurality of transmitters are to retransmit the packet. Then, the packet is retransmitted on at least one of a different subset of time slots, a different subset of frequency sub-carriers and a different subset of antennas. | 11-20-2008 |
20080298340 | Method and Apparatus for Improving Transmission of Downlink Shared Channel in a Wireless Communications System - A method for improving transmission of a downlink shared transport channel in a wireless communications system is provided in the present invention to avoid redundant signaling. The method includes steps of mapping a broadcast control channel to a downlink shared transport channel for transmitting a system information broadcast message through the downlink shared transport channel, and forming a packet without any headers according to the system information broadcast message. | 12-04-2008 |
20080310391 | APPARATUS FOR AND METHOD OF POWER SAVE TRAFFIC CONTROL IN CLIENT/SERVER NETWORKS - A novel and useful apparatus for and method of handling traffic congestion during power save mode in client/server systems such as wireless local area networks (WLANs). A reduction in response time is achieved by minimizing communications between the host and the MAC processing entities in client devices. The host sends shortened descriptors to the MAC rather than complete frames. Only a limited number of frames for each client queue are stored on the MAC. A transfer bitmap is used to track the frames to be transferred from the host to the MAC. Transmitter pre-processing is performed on the frames pulled from the host. A transmit bitmap is used to track frames that have been processed and awaiting transmission to a client. Frames that are ready are then sent out from queues for clients that are active and have an ongoing service period. | 12-18-2008 |
20080310392 | VIRTUAL CONNECTION OF A REMOTE UNIT TO A SERVER - Apparatus and associated methods are provided which allow a remote user to maintain a virtual session with a server. A virtual session allows a remote and possibly mobile user to maintain a virtual presence in an office environment without actually being present. Using the present invention, a remote user can access a central application program such as an Internet service provider, a database system, an inventory system or billing system. Likewise, the remote user can receive calls and other forms of communications as though he or she were present in an office environment. A virtual session does not require a physical connection to be continuously present in order to provide a virtual connectivity. This is especially important for mobile applications where the remote user may incur long distance and/or wireless toll charges. Also, methods are presented to allow a remote unit to rapidly reconnect in a transparent and seamless way without burdening the user with the need to connect and reconnect or to upload and download information. Related methods are provided to allow the virtual session to be established, operated and maintained. | 12-18-2008 |
20090016319 | WIRELESS COMMUNICATION METHOD AND DEVICE - In a commutation system, a data packet is transmitted and received by radio among radio communication apparatuses. In the communication system, the data packet is started to be transmitted on a transmission right acquired on contention type access control in response to a transmission request for the data packet. It is detected that there is a predetermined state in which the transmission request is generated during or after reception of a long packet which is over a given packet length. When the predetermined state is detected, a start timing of the access control is shifted to a timing at which a desired delay time passes after completing reception of the long packet. One example is that an elapse time from a start of reception of the long packet to generation of the transmission request is measured and, as the desired delay time, a period of time calculated by multiplying the measured elapse time by a specified coefficient is set. | 01-15-2009 |
20090022137 | SIGNALING IN A WIRELESS COMMUNICATION SYSTEM - A method of operating a wireless transmit receive unit (WTRU) and a WTRU configured to receive a radio link control (RLC)/a medium access control (MAC) header. The header is coded for reduced transmission time interval (RTTI) operation. The header includes a 16-bit cyclic redundancy check (CRC) of an RLC/MAC payload associated with the RLC/MAC header. | 01-22-2009 |
20090034507 | HIGH-SPEED UPLINK PACKET ACCESS (HSUPA) CIPHER MULTIPLEXING ENGINE - A combined data packing, cipher and multiplexing engine operable to support high speed uplink packet access (HS-UPA) within user equipment (UE) is provided. This combined cipher multiplexing engine includes a master port, a radio link control (RLC) data packer, and a cipher multiplexing processing module. The master port couples to an advanced microprocessor bus architecture (AMBA) high speed buss (AHB) on which control information for the combined cipher and multiplexing engine is provided. The RLC couples to the master port and receives RLC service data units (SDUs) from the AHB. Then the RLC data packer may concatenate or segment RLC SDUs into RLC packet data units (PDUs) which are stored for use by a cipher multiplexing processing module. The cipher multiplexing processing module retrieves the RLC PDU from the RLC PDU buffer and ciphers to produce ciphered data, if cipher is enabled and multiplexes the ciphered/non-ciphered data together with the RLC header, MAC-es header, MAC-e header and enters the multiplexed results to a hybrid automatic repeat request (HARQ) buffer. A protocol stack executed within the UE activates and provides an array on the formation of the RLC PDU, RLC header information to the combined cipher and multiplexing engine for RLC PDU ciphering and medium access control (MAC) multiplexing of the enhanced data transport channel (E-DCH). | 02-05-2009 |
20090046697 | METHOD AND APPARATUS FOR SELECTIVE DECODING IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and method for controlling decoding in a wireless communication system are provided. Data is received in a slot associated with a packet to be received. A threshold is determined according to format information of the packet. It is determined whether to decode the received data by comparing the threshold with the number of slots received in relation to the packet. The received data is stored without decoding, if the number of the received slots is less than or equal to the threshold. The received data is decoded to recover the packet, if the number of the received slots is greater than the threshold. | 02-19-2009 |
20090059892 | METHOD AND APPARATUS FOR ACCOMMODATING HIGHER ORDER MODULATION IN WIRELESS COMMUNICATION - A method and apparatus for reconfiguring a wireless transmit/receive unit (WTRU) are directed to receiving an active set update message indicating that a mode of operation allowing a certain modulation scheme is enabled or disabled and performing at least one of: performing a MAC reset procedure, updating a set of reference enhanced transport format combination indicators (E-TFCIs) and associated power offsets, determining actions related to E-DPCCH boosting, modifying information related to an enhanced dedicated channel (E-DCH), and modifying an index that indicates an E-DCH transport block size table. The update message includes at least one modified information element (IE). | 03-05-2009 |
20090073955 | MULTIPLEXING OF SOUNDING SIGNALS IN ACK AND CQI CHANNELS - A resource block can include all symbols in a slot for each, generally a multiple of 12, sub-carrier in the resource block. A slot is typically | 03-19-2009 |
20090080405 | DIGITAL BROADCASTING SYSTEM AND DATA PROCESSING METHOD IN THE DIGITAL BROADCASTING SYSTEM - A digital broadcasting system and a data processing method are disclosed. In an aspect of the present invention, the present invention provides a data processing method including receiving a broadcast signal in which main service data and mobile service data are multiplexed, demodulating the received broadcast signal, outputting demodulation time information of a specific position of a broadcast signal frame, and acquiring reference time information contained in the mobile service data frame, setting the reference time information to a system time clock at a specific time based on the demodulation time information and decoding the mobile service data according to the system time clock. | 03-26-2009 |
20090086706 | CROSS-LAYER MULTI-PACKET RECEPTION BASED MEDIUM ACCESS CONTROL AND RESOURCE ALLOCATION - A cross-layer multi-packet reception media access control and resource allocation technique is provided for wireless networks having receivers with multiple antennas. User devices on the wireless network access the network for data transmission by making a request to send (RTS) request after a random backoff time. In response to a request to send, an access point (or other receiver) determines transmission parameters that optimize the use of the physical layer based at least in part on channel state information. Those transmission parameters are transmitted along with a clear to send (CTS) message from the receiver to an indicated transmitter. Once the CTS message is received, data is transmitted in accordance with transmission parameters. | 04-02-2009 |
20090086707 | ROBUST HEADER COMPRESSION/DECOMPRESSION METHODS AND SYSTEMS - A method for a wireless communication system is provided. The method includes communicating a packet of network profile information, where the packet is communicated across a network in association with application data. The method also includes automatically reporting capability parameters of a terminal in order to process the network profile information, where the capability parameters are employed to adjust performance of the network. | 04-02-2009 |
20090086708 | METHOD AND APPARATUS FOR SUPPORTING SEGMENTATION OF PACKETS FOR UPLINK TRANSMISSION - A method and apparatus for segmenting medium access control (MAC) service data units (SDUs) creates enhanced MAC-es PDUs in the enhanced MAC-e/es sub-layer by concatenating MAC SDUs received from the logical channels. An enhanced transport format combination (E-TFC) selection entity controls the concatenation of MAC SDUs into enhanced MAC-es PDUs. When a MAC SDU is received that is too large to fit into a selected enhanced MAC-es PDU payload, a segmentation entity segments the MAC SDU such that the MAC SDU segment fills the remaining payload available in the selected enhanced MAC-es PDU. The enhanced MAC-es PDU is then assigned a transmission sequence number (TSN) and multiplexed with other enhanced MAC-es PDUs to create a single enhanced MAC-e PDU that is transmitted on the E-DCH in the next transmission time interval (TTI). A HARQ entity stores and, if necessary retransmits the enhanced MAC-e PDU when a transmission error occurs. | 04-02-2009 |
20090086709 | METHOD AND APPARATUS FOR ENHANCED TRANSPORT FORMAT COMBINATION SELECTION IN WIRELESS COMMUNICATIONS - Efficient enhanced transport format combination (E-TFC) selection methods and apparatus support flexible radio link control (RLC) packet data unit (PDU) size and medium access control (MAC) layer segmentation. Methods for filling an enhanced medium access control (MAC-e) packet data unit (PDU) with data from logical channels as part of E-TFC selection are provided. In one embodiment, the E-TFC selection algorithm employs a single request from the MAC layer to the RLC layer to request the number of bits it is allowed to send for a logical channel to create enhanced MAC-e PDUs. In another embodiment, the MAC entity performs multiple requests to the RLC entity. In another embodiment, the MAC entity makes a single request to the RLC entity to create one or more enhanced MAC-e PDUs of a set size. A technique is also provided for maintaining a guaranteed bit rate (GBR) for non-scheduled data flows with variable-length headers. | 04-02-2009 |
20090086710 | METHOD AND APPARATUS FOR IMPLEMENTING LTE RLC HEADER FORMATS - Systems and methodologies of reducing overhead by designating various fields in an optimized Radio Link Control header. Depending on communication type (e.g., VoIP, non-VoIP) such fields include a combination of a Segment Indicator (SI—which indicates presence of a whole SDU at beginning or at an ending), a Sequence Number (SN), a Length Indicator (LI—which indicates length of a service data unit); a length for the length indicator (LLI—to enable a variable size for the LI and notify a receiver regarding such varying size); a Segment Offset (SO—to designate resegmented packets for lost protocol data units); a length indicator for the SO (LSO—to enable a variable size for the SO); and Last Segment Flag (LSF—for resegmentation of RLC protocol data units). | 04-02-2009 |
20090092121 | METHOD FOR BRANCHING DATA IN MOBILE COMMUNICATION TERMINAL - A method for branching data in a mobile communication terminal to perform data communication between a mobile station and a network which have media access control sublayers. In a data sending mode, each of the media access control sublayers of the mobile station and network attaches logical channel types based on traffic characteristic information and a radio bearer status to a media access control header contained in data to be sent. Then, each of the media access control sublayers branches the data to be sent, to transport channels corresponding to the attached logical channel types. In a data receiving mode, each of the media access control sublayers determines logical channels corresponding to logical channel types of a media access control header contained in received data. Then, each of the media access control sublayers branches the received data to the determined logical channels. Each of the media access control sublayers performs mapping and multiplexing/demultiplexing between logical channels and transport channels according to traffic characteristics to branch data. Therefore, it is possible to efficiently provide various multimedia and packet services. | 04-09-2009 |
20090103513 | Communications terminal, a system and a method for internet/network telephony - A communication terminal for Internet telephony is provided that handles and control communication of data in accordance with a standardized network protocol and exchanges data with a connecting unit connected to the Internet where the resulting data exchanged between the terminal and a connecting unit consist of packets in a standardized protocol data packet format embedded in a wireless format. This provides a communications terminal which uses a network or the Internet for the transfer of digitized speech, etc., thereby achieving great economic savings. Also, the flexibility is increased with respect to wireless communication with the network or the Internet without any need for specialized equipment and functionality. | 04-23-2009 |
20090103514 | METHOD FOR BRANCHING DATA IN MOBILE COMMUNICATION TERMINAL - A method for branching data in a mobile communication terminal to perform data communication between a mobile station and a network which have media access control sublayers. In a data sending mode, each of the media access control sublayers of the mobile station and network attaches logical channel types based on traffic characteristic information and a radio bearer status to a media access control header contained in data to be sent. Then, each of the media access control sublayers branches the data to be sent, to transport channels corresponding to the attached logical channel types. In a data receiving mode, each of the media access control sublayers determines logical channels corresponding to logical channel types of a media access control header contained in received data. Then, each of the media access control sublayers branches the received data to the determined logical channels. Each of the media access control sublayers performs mapping and multiplexing/demultiplexing between logical channels and transport channels according to traffic characteristics to branch data. Therefore, it is possible to efficiently provide various multimedia and packet services. | 04-23-2009 |
20090109952 | METHOD AND APPARATUS FOR SIGNALING TRANSMISSION CHARACTERISTICS IN A WIRELESS COMMUNICATION NETWORK - A wireless network uses an improved frame structure to increase timing acquisition capabilities as well as reduction of spectral lines. In one aspect, the frame packet can be used to communicate the different modes of operation under which the packet was created. | 04-30-2009 |
20090122780 | SYSTEM AND METHOD FOR PROVIDING SCHEDULED DATA COMMUNICATIONS IN A COMMUNICATION SYSTEM - A system and method for enabling scheduled data messages to be transmitted within a communication system on a controlled access packet data channel. When a scheduled data message is to be transmitted, a mobile device generates the data message, appends a predetermined type of header to the data message, and passes the data message to a communication unit. The header comprises an hour field, a minute field, and a slot field indicative of a specific time when the data message is to be transmitted on the controlled access packet data channel. After receiving a data message from the mobile device, the communication unit parses the received data message to determine whether the received data message should be processed as a scheduled data message on the controlled access packet data channel, and transmits the data message to a fixed network at a specific time based on the hour, minute, and slot fields in the header. | 05-14-2009 |
20090147767 | System and method for locating a mobile node in a network - Disclosed is a system and method for locating a mobile node in a network. The system comprises a plurality of beacon nodes, at least a router, a location host, and at least a mobile node. Each beacon node broadcasts at least a beacon signal at a first channel. A mobile node receives a plurality of beacon signals, and sends a corresponding packet's information to the location host at a second channel through a router. According to the packet's information, the location host may compute the location for the mobile node. This system distributes the communication loading to different groups and channels, which may estimate the locations for lots of mobile nodes at the same time, and gives a high communication quality and a good location estimation result. | 06-11-2009 |
20090154445 | Method and system for adaptive transmission of smoothed data over wireless channels - A method and system that reduces the impact of packet loss on video data quality. Packet selection is performed by the method and system to selectively drop low priority packets so that the overall quality of the received video data may be improved. In one exemplary embodiment, the probability of higher priority layers being delivered on time is computed and a packet is transmitted only if this probability is greater than a given threshold h. In another exemplary embodiment, the system and method have the capability of backing up the process to transmit previously skipped packets, if time allows. | 06-18-2009 |
20090168744 | MOBILE DATA COMMUNICATION METHOD AND SYSTEM USING IMPROVED MEDIUM ACCESS CONTROL PROTOCOL - A data communication method and system for a mobile communication network includes an improved medium access control mechanism for improving QoS and power efficiency of network components while maintaining channelization effects. A data communication method for a wireless communication network includes a coordinator and at least one network node according to the present invention includes the steps of broadcasting, at the coordinator, a beacon frame for informing the at least one network node of a duration of a superframe; transmitting a Guaranteed Time Slot (GTS) from the coordinator to the at least one network node for allocating timeslots; and transmitting a data frame from the coordinator to the at least one wireless network through the timeslots allocated to the at least one wireless network node. | 07-02-2009 |
20090175259 | METHOD FOR ENHANCING LAYER 2 FOR A HIGH SPEED PACKET ACCESS UPLINK - A method for enhancing Layer 2 for High Speed Packet Access uplink. The method includes segmenting a Radio Link Control (RLC) Service Data Unit (SDU) into plurality of Medium Access Control (MAC) i/is Packet Data Units (PDUs), a size of which is limited to a Maximum RLC PDU Size (MRPS) and indicating RLC PDUs of the same size by a single Length (L) entry and indicating the RLC PDUs by a (size, number) pair in the L entry. | 07-09-2009 |
20090180463 | METHOD, TERMINAL AND NETWORK DEVICE FOR CHANGING STATUS OF A PACKET SWITCHED DOMAIN - The present invention provides a method, terminal and network device for changing the status of a packet switched domain. The method includes (1) receiving an instruction, for changing the status of a packet switched domain, sent from a first terminal, wherein the changing of the status of the packet switched domain includes activating the packet switched domain or modifying a parameter of the packet switched domain where a second terminal is currently located and (2) changing the status of the packet switched domain according to the instruction. In various embodiments of the present invention, the terminal can activate the PS domain passively to deploy PS domain based services. | 07-16-2009 |
20090185549 | MOBILITY HEADER COMPRESSION METHOD AND SYSTEM FOR INTERNET PROTOCOL-BASED LOW POWER WIRELESS NETWORK - A mobility header compression method and system for an IPv6-based LoWPAN is provided for supporting IPv6 mobility to the IPv6-based LoWPAN checks a packet carrying data and a first and a second headers containing transmission information about the data to determine whether the second header contains a compressed Internet Protocol version 6 (IPv6) information. When the second header contains a compressed IPv6 information, ands followed by a mobility header, a mobility support-indicative field of the first header is set to indicate that the second header is followed by the mobility header and the rest of the fields of the second header are compressed except for the mobility header-indicative field. A mobility information-indicative field of the mobility header is set to indicate inclusion of mobility information; and the rest of the fields of the mobility header are compressed except for the mobility information-indicative field. | 07-23-2009 |
20090207831 | METHOD OF TRANSMITTING FEEDBACK INFORMATION USING AN EXTENDED SUBHEADER - A method of transmitting feedback information is disclosed. More specifically, a mobile station (MS) receives a Protocol Data Unit (PDU) which includes a Medium Access Channel (MAC) header from a base station (BS). Thereafter, the MS determines from the received MAC header whether an extended subheader group appears after the MAC header, and also identifies a feedback request extended subheader from the extended subheader group. Lastly, the MS transmits the feedback information according to the feedback request extended subheader. | 08-20-2009 |
20090219917 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING AN EXTENDEDCHANNELINFO MESSAGE IN AN ACTIVE STATE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting and receiving an ExtendedChannelInfo message. The method comprises broadcasting the ExtendedChannelInfo message over a Forward Traffic Channel Medium Access Control (MAC); transmitting the ExtendedChannelInfo message in superframes, wherein the superframe number is divisible by N | 09-03-2009 |
20090232124 | MULTI-RECEIVER FRAME AGGREGATION - When using a multi-receiver aggregation protocol in a wireless communications network, a sub-header may be used to identify groups of data units that share common parameters, such as destination addresses, acknowledgement modes, modulation/coding rates, lengths, etc. The layout of this sub-header may permit each receiving device to identify the portion of the aggregated payload that is addressed to that receiving device, where that portion is located, how long that portion is, and how to demodulate it. In addition, by controlling the selection and timing of various acknowledgement modes used by the mobile stations, a base station may improve overall network efficiency and throughput. | 09-17-2009 |
20090262721 | METHOD FOR COMBINING MULTIPLE FRAMES OF DATA INTO A SINGLE MEDIUM ACCESS - A method of combining multiple frames of data into a single access to a shared communications medium improves network efficiency transmitting in a fashion compatible with legacy network equipment. An increase in the efficiency of use of a shared communications medium is realized by amortizing the overhead of fixed elements of a communication protocol over multiple frames. The sharing of preamble signaling, elimination of multiple inter-frame gaps or spaces, and the use of a legacy signal field permits a representative embodiment of the present invention to more effectively use a shared communication medium, while in addition providing backward compatible support for legacy network stations. | 10-22-2009 |
20090274139 | PRE-EMPTIVE ACKNOWLEDGEMENT FOR DATA TRANSMISSION IN A COMMUNICATION SYSTEM - Techniques for sending acknowledgement (ACK) information for data transmission are described. In one design, a receiver receives a transmission of data, processes the received transmission to decode the data, and generates ACK information for the data prior to decoding all of the data. The receiver may generate the ACK information based on decoding results for a portion of the data and/or received signal quality of the received transmission. The receiver may send the ACK information at a designated ACK transmission time prior to completing decoding for all of the data. The receiver may receive a transmission of multiple (K) packets and may generate ACK information for these K packets after decoding L packets, where 1≦L11-05-2009 | |
20090296683 | Transmitting a protocol data unit using descriptors - A method for transmitting a protocol data unit (PDU) includes receiving one or more Ethernet packets and reading a header associated with each of the one or more Ethernet packets. The method further includes generating a transmit descriptor that includes a plurality of fields containing information for preparing a protocol data unit (PDU), and preparing a PDU according to the transmit descriptor. The method also includes transmitting a burst, wherein the burst includes one or more PDUs. | 12-03-2009 |
20090323667 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - There is disclosed a wireless communication apparatus that does not interrupt synchronous communication but can continuously perform the synchronous communication even when an address duplication occurs between the local wireless communication apparatus and a nearby wireless communication apparatus. A plurality of wireless communication apparatuses constitutes an ad hoc network system where they transmit beacons to each other. In the wireless communication apparatus, an address processing part ( | 12-31-2009 |
20090323668 | SELECTIVE RADIO TRANSMISSION OF PACKETS - A method of radio transmitting packets and transmitter. The packets are identified by at least one respective transmission criterion which is selected from either one or a combination of the following criteria:
| 12-31-2009 |
20100008350 | METHOD AND DEVICE OF TRANSMITTING AND PARSING DATA IN WIRELESS COMMUNICATION NETWORK - The present invention provides a method and corresponding device of processing and parsing a to-be-transmitted data packet in a communication network, such as a LTE system. A sub-header that is used for a header portion of a transmitted data packet is generated for each component data packet constituting the transmitted data packet, containing: original data packet ID for indicating an original data packet which the component data packet belongs to; segmentation processing ID for indicating times of segmentation happened to the original data packet in order to the component data packet, and a data segment which said component data packet belongs to after each segmentation; data amount IF for indicating a data amount of a data portion of the data packet. With the technical solution provided by the present invention, the header structure definition of a data packet is optimized, and the transmission resource utilization efficiency is improved. | 01-14-2010 |
20100020785 | Processing data units for transfer over the same channel - A radio communication scheme that newly defines a structure of a protocol data unit transmitted through a transport channel so as to avoid unnecessary redundant attachment of the terminal identifier (UE-ID) and the UE-ID type information. As only one terminal identifier (UE-ID) and UE-ID type exist in the header of protocol data unit being processed during one transmission time interval (TTI), the efficiency of overall data transmission is improved and waste of radio resources is remarkably reduced. | 01-28-2010 |
20100034188 | RADIO NETWORK COMMUNICATION SYSTEM AND PROTOCOL - A communications system and protocol for a radio communications network including a number of transceiver devices. The protocol ensures that network variables to be shared by all devices are correctly received and updated by all devices. The protocol also provides for accurately detecting the transition from one time slot to another, in a given data transaction. The protocol utilises a method of providing a marker in a data time frame for use such as marking the end of a variable slot in a data frame. The method includes encoding data into states, and then generating a marker that is an illegal combination of states in the encoding scheme. | 02-11-2010 |
20100054231 | DPI-TRIGGERED APPLICATION-AWARE DORMANCY TIMER ADJUSTMENT FOR MOBILE DATA BEARERS - Based on application information received from a Deep Packet Inspection (DPI) device, a Radio Network Controller (RNC) or similar device may select a dormancy timer value to optimize the use of network resources. In particular, the RNC may set an additional dormancy timer based on a default value or a rough determination of the application by examining port numbers. After the DPI device has received a sufficient number of packets to identify the underlying application, the DPI device may then propagate the application information to the RNC. Based on this application information, the RNC may determine the most efficient dormancy timer and modify the value of the default timer based on this determination. | 03-04-2010 |
20100054232 | TRANSMISSION SYSTEM - A transmission system includes: a transmission-side device that has a transmission-side clock generation unit that generates a first clock signal on the basis of a reference clock signal ; a clock extraction unit that removes a data clock signal superimposed with transmission data to a reception-side device; a clock difference acquisition unit that determines a difference between the first clock signal and the data clock signal; and a packet generation unit that packetizes the information on the difference determined by the clock difference acquisition unit; and the reception-side device that has a reception-side clock generation unit that generates a second clock signal on the basis of the reference clock; a packet reception unit that receives the information on the packetized difference from the transmission-side device; and a data clock regeneration unit that regenerates the data clock signal on the basis of the second clock signal and the difference information. | 03-04-2010 |
20100074245 | MOBILE BODY-MOUNTED COMMUNICATION APPARATUS AND ADDRESS MANAGEMENT APPARATUS - A mobile body-mounted communication device mounted in a mobile body such as a vehicle and making difficult the long-time tracking of the moving path of the mobile body. The mobile body-mounted communication device mounted in a mobile body and used for transmitting/receiving packet information is characterized by comprising a borrowing address acquiring section for acquiring lending addresses as borrowed addresses from an address management device managing lending addresses, a borrowing time information acquiring section for acquiring information representing predetermined times during which the borrowing addresses can be used from the address management device, and a transmitting section for transmitting packet information including information on a borrowing address out of the borrowing addresses and the mobile body during the predetermined borrowing times determined for the borrowing addresses. | 03-25-2010 |
20100118858 | METHOD AND APPARATUS FOR LOCATIONING AN OBJECT IN A COMMUNICATION NETWORK - A method and apparatus for locationing an object in a communication network. The method includes transmitting by a wireless transceiver fixed to the object of unknown location a plurality of radio frequency (RF) packets to a plurality of locationing receivers (LRs) in the communication network. The method further includes determining by each locationing receiver the local time of arrival of the RF packet and places a time stamp on the received RF packet based on a corresponding local clock, wherein the local clocks of the locationing receivers are synchronized based on a plurality of RF beacon packets transmitted by at least one reference transmitter at a known location. | 05-13-2010 |
20100135275 | Method for Maintaining Timing Across Discontinuous Activity Gaps for a Non-Real Time Data Interface - A method for maintaining timing across discontinuous activity gaps for a non-real time data interface, in a radio frequency (RF) IC is disclosed. The method comprises starting a first receive mode in the RF IC to receive analog RF signals | 06-03-2010 |
20100177761 | WIRELESS TERMINAL TURBO DECODING MODULE SUPPORTING PACKET SPLITTING AND DECODING - A baseband processing module of a wireless terminal includes a Turbo decoding module. The Turbo decoding module decodes a Turbo code word to produce one or more Media Access Control (MAC) packet(s) carried by the turbo decode word. Each MAC packet includes a MAC packet header and the MAC packet payload, which carries one or more Radio Link Control (RLC) Packet Data Units (PDUs). The Turbo decoding module decodes the MAC packet header to determine boundaries of the PDUs carried in the MAC packet payload. The Turbo decoding module decodes RLC PDU headers and RLC PDU payloads of the RLC PDUs. The Turbo decoding module writes the decoded MAC packet header, the decoded RLC PDU headers, and the decoded RLC PDU payloads to memory in a word-aligned format. The Turbo decoding module may also operate in various other Turbo decoding modes. | 07-15-2010 |
20100182991 | METHOD AND SYSTEM FOR PRESERVING CONTENT TIMING ACROSS FEMTOCELL INTERFACES VIA TIMESTAMP INSERTION - Aspects of a method and system for preserving content timing across femtocell interfaces via timestamp insertion are provided. In this regard, a femtocell may receive a first time-stamped packet via a first interface and transcode the time-stamped packet. The femtocell may buffer the transcoded packet based on a time-stamp recovered from the packet and may transmit the buffered transcoded packet via a second interface. One of the first interface and the second interface may utilize the Internet Protocol. One of the first interface and the second interface may be a non-cellular interface and the other interface may be a cellular interface. The femtocell may be operable to generate a timestamp corresponding to a time instant at which a time-stamped packet arrived via the first interface or the second interface. The timestamp may be referenced to a clock within a cellular enabled communication devices communicatively coupled to the femtocell. | 07-22-2010 |
20100195638 | 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 first processing unit, and a second processing unit. The receiving unit receives a broadcast signal including mobile service data from at least one slot. The first processing unit acquires FIC segments divided from an FIC chunk of at least one sub-frame. Herein, each FIC segment comprises a 2-byte segment header and a 35-byte segment payload. The segment header includes an FIC type information, a number of a corresponding FIC segment, and a number of a last FIC segment among the FIC segments divided from the FIC chunk. The second processing unit obtains the FIC chunk including signaling information between at least one ensemble and at least one mobile service from respective payloads of the FIC segments, based upon the acquired FIC type information, number of the corresponding FIC segment, and number of the last FIC segment of each FIC segment. | 08-05-2010 |
20100195639 | 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 first processing unit, and a second processing unit. The receiving unit receives a broadcast signal including mobile service data and an FIC segment from at least one slot. Herein, a transmission frame may be configured of a plurality of sub-frames for receiving at least one ensemble and at least one mobile service, and a sub-frame may be configured of a plurality of slots. The a first processing unit extracts FIC segments each having a different FIC chunk major protocol version from the broadcast signal, and acquires a number of the corresponding FIC segment, a number of the last FIC segment, and FIC chunk major protocol version information from each segment header of the extracted FIC segments. The second processing unit obtains an FIC chunk including signaling information between at least one ensemble and at least one mobile service frame from respective payloads of the FIC segments, based upon the acquired number of the corresponding FIC segment, number of the last FIC segment, and FIC chunk major protocol version information. | 08-05-2010 |
20100238916 | METHOD FOR IMPROVING THE DATA RATE OF MOBILE/HANDHELD DATA AND THE QUALITY OF CHANNEL ESTIMATION IN AN ATSC-M/H TRANSPORT DATA STREAM - A method for improving the data rate of data for M/H receivers and for improving the quality of channel estimation in an ATSC-M/H transport data stream marks the transport data packets determined for the transmission of data for M/H receivers in N (e.g., 38) consecutively transmitted transport data packets in an ATSC-M/H-slot of the uncoded ATSC-M/H transport data stream originally determined for the transmission of data for stationary receivers. Coded data for M/H receivers are inserted in the marked transport data packets and introduce training sequences in segments of data fields of the coded ATSC-M/H transport data stream containing marked transport data packets. | 09-23-2010 |
20100246563 | WIRELESS COMMUNICATION METHOD AND APPARATUS THEREOF - To provide a stable high speed wireless network, the relay process is solved at the lower layers (PHY layer, MAC layer) without depending on upper layers to reduce the load of the upper layers to the utmost. Discrimination is made between a packet of one's own station and a relay packet to process the presence and absence of the relay packet without using a CPU to construct a wireless network executing the relay processing at a high speed. Further, the retransmission is executed without using a CPU to provide a stable wireless network. In addition, the table for relay process (routing table) is constantly updated to add to the table the information of the packets of which processes are not executed to eventually suppress unnecessary processes. | 09-30-2010 |
20100329235 | Wireless Audio Communicating Method and Component - A method of reducing interference by a first wireless audio communication system with a second wireless communication system that is different from the first wireless system is provided. The first wireless system is caused to transmit data packets with a time gap between packets during which the first wireless system is not transmitting. Periodically a long time gap between two packets of the first system is set to be at least as long as a longest time it can take the second wireless system to transmit a data packet even when packet transmission errors are occurring in the first wireless system such that if packets were retransmitted by the first wireless system the long time gap would be reduced to be less than the longest time it can take the second wireless system to transmit a data packet. As such, the second wireless system can transmit one or more data packets during each long time gap during which the first wireless system is not transmitting. | 12-30-2010 |
20120063446 | MECHANISM TO UPDATE A NAV TIMER - In a 60 Hz WGA wireless network, not all frames with the duration field are received by a STA in a WGA network because of directional antennas. Therefore, a NAV Timer cannot account for the reserved duration of the channel by only updating with the longest duration field received. A STA can receive two frames each with a source and destination addresses and update the NAV Timer by comparing the received addresses to overcome such problem. Further, a STA can receive one frame with a source and destination addresses and update the NAV Timer by comparing the received addresses with the NAVSRC and NAVDST values. | 03-15-2012 |
20120201235 | TRANSMITTER, RECEIVER AND METHOD THEREOF IN HUMAN BODY COMMUNICATOIN SYSTEM - A receiver in a human communication system includes: receiving electrodes including a transmission frame including control frames and data frames; first and second switches connected with the receiving electrodes; a switching control unit controlling a switching of the first and second switches to selectively connect the receiving electrodes with the first and second switches in response to each control frame according to a predetermined rule every time each of the control frames is input; a signal processing unit performing signal processing on the transmission frame output from the first and second switches; a preamble detection unit detecting the first preamble from each of the control frames included in the signal-processed transmission frame to generate preamble correlation values for the first preamble; and a correlation value processing unit controlling the switching control unit to select pairs of final receiving electrodes among the receiving electrodes based on the preamble correlation values. | 08-09-2012 |
20120224571 | METHOD FOR COMMUNICATING IN A NETWORK COMPRISING A BATTERYLESS ZIGBEE DEVICE, NETWORK AND DEVICE THEREFOR - A method for wireless communication in a network comprising a resource-restricted device, and at least one proxy device, wherein the method comprises the following steps:-the resource-restricted device (ZGPD) transmitting a frame containing source identifier to be forwarded to a destination device in the network,-the proxy device (ZP | 09-06-2012 |
20120250673 | PTA METHOD AND APPARATUS UTILIZING THE SAME - An apparatus (and related method) coordinates wireless communication operations for coexisted wireless communication modules. The apparatus includes a packet traffic arbitration (PTA) module coupled between a first wireless communication module and a second wireless communication module, granting the first request requesting for a first wireless communication operation with a first priority in a first time period from the first wireless communication module, receiving a second request requesting for a second wireless communication operation with a second priority from the second wireless communication module when the granted first wireless communication operation is not finished. In operation, the first wireless communication operation interferes with the second wireless communication operation, the PTA module granting the second request and informing the first wireless communication module to take back the granted first request when the second priority is higher than the first priority. | 10-04-2012 |
20130003715 | CONNECTION SETUP FOR LOW ENERGY WIRELESS NETWORKS BASED ON MASTER DEVICE PACKET THAT INCLUDES TIMING INFORMATION - An apparatus includes a controller configured to cause a wireless transceiver to send and receive wireless packets. The controller is configured to receive a packet from another wireless device. The packet specifies a scan window length, a scan interval, and a start time. Based on the start time, scan interval, and a current time, the controller is configured to compute when a subsequent scan window will begin and the wireless transceiver does not transmit advertising packets until the subsequent scan window begins. | 01-03-2013 |
20130230040 | WIRELESS COMMUNICATION APPARATUS AND METHOD - According to one embodiment, a wireless communication apparatus includes a first processor, a second processor and a controller. The first processor generates one or more first frames and one or more second frames. The second processor transmits the first frames and the second frames, and receives a first acknowledgement and a second acknowledgement. The controller retains a first interval relating to a time interval between the first transmission request and the second transmission request and a second interval relating to a time interval between a first and a second time points, and controls transmission of frames to be transmitted based on the first and the second intervals. | 09-05-2013 |
20140003415 | SYSTEMS AND METHODS FOR ENHANCED WIRELESS COMMUNICATION FRAMES | 01-02-2014 |
20140036902 | Method, Apparatus, and Logic for Wireless Data Transmission - In certain embodiments, a method comprises receiving a data transmission comprising a header with a symbol and at least one symbol delimiter. The method may comprise monitoring the received data transmission to determine whether a time period between successive symbol delimiters of the header exceeds a maximum time. The method may comprise resetting a transponder to an initial state if the time period exceeds the maximum time. The maximum time may be determined based at least in part on the symbol after receiving successive symbol delimiters. | 02-06-2014 |
20140341205 | HIGH SPEED OVERLAY MODE FOR BURST DATA AND REAL TIME STREAMING (AUDIO) APPLICATIONS - In a wireless 802.15.4 communication system ( | 11-20-2014 |
20150071280 | Underwater transceiver device, underwater communication system and related communication method - The invention concerns an underwater transceiver device, communications system and method of communicating sensor data underwater. The transceiver device comprises a sensor unit or a sensor connection for an external sensor unit for providing a sensor value and a communication unit functionally connected to the sensor unit or connection and comprising means for wirelessly transmitting the sensor value to another underwater device as data packets according to a timing scheme. According to the invention, the communication unit further comprises means for wirelessly receiving data packets of other underwater devices, and means for adjusting the timing scheme based on data packets received so as to avoid simultaneous transmitting of underwater devices. The invention enables energy-efficient and robust communications between diving equipment. | 03-12-2015 |
20150381518 | DATA TRANSMISSION RESERVATION METHOD AND APPARATUS, DATA RECEPTION METHOD AND APPARATUS, AND DATA TRANSMISSION AND RECEPTION SYSTEM IN RECEIVER-INITIATED ASYNCHRONOUS MEDIUM ACCESS CONTROL PROTOCOL - According to the present invention, there is disclosed a method for reserving data transmission from a transmitting node to a receiving node in a receiver-initiated asynchronous MAC (Medium Access Control) protocol. The method includes receiving a base beacon frame from the receiving node and when transmitting a data frame to the receiving node, transmitting the data frame, with a reserved field value set in a portion of a header of the data frame. | 12-31-2015 |
20160088645 | MECHANISMS TO PREVENT TCP TIMEOUTS IN DUAL SIM DUAL ACTIVE DEVICES - A method includes: determining a first protocol data unit (PDU) priority for a first PDU and a second PDU priority for a second PDU; tagging the first PDU with the first PDU priority and the second PDU with the second PDU priority; determining to transmit one of the first PDU and the second PDU based at least in part on the first PDU priority and the second PDU priority; and transmitting a one of the first PDU and the second PDU having a higher PDU priority. | 03-24-2016 |
20160119086 | SNOOP VIRTUAL RECEIVER TIME - A snoop method for increasing the efficiency of TCP protocol operations at the snoop receiver by assuming there is no reordering over the wireless hop. The method performs maintaining a copy of each packet received, the copy adapted for retransmission to the receiver device on behalf of the source device and maintaining for each packet received, a virtual send time (VST) value of that packet. The VST corresponds to a virtual time the packet was sent or retransmitted to the receiver device. There is further maintained an estimate of the receiver device's time (VRT) based on acknowledgement (ACK) messages for packets received from the receiver device. Responsive to receiving an acknowledgement for a packet sent at the time VST, the method infers any lost packets and retransmits a copy of any lost packets having a VST value sent before the receiver's VRT estimate. | 04-28-2016 |
20160165013 | SCHEME FOR TRANSMITTING AND RECEIVING INFORMATION IN WIRELESS COMMUNICATION SYSTEM - A method for transmitting information in a transmission time interval by a device in a wireless communication system is provided. The method includes fragmenting the information into two or more information fragments, if a size of the information is greater than a transportable size of unit transmission resource used for transmission of the information; generating a protocol data unit (PDU) including fragmentation information and one of unfragmented information and a fragmented information fragment; and transmitting the PDU through the unit transmission resource. The fragmentation information includes an identity of a specific unit transmission resource within the at least one transmission time interval and fragmentation control (FC) information indicating at least one of whether the information is fragmented or not and a position of the fragmented information fragment within the two or more information fragments. The identity of the specific unit transmission resource is uniquely assigned within the transmission time interval. | 06-09-2016 |
20160198453 | Method, Device, and System for Sending Feedback Information | 07-07-2016 |
20180026729 | CAPSULE ENDOSCOPE TRANSMITTER AND CAPSULE ENDOSCOPE RECEIVER CONFIGURED TO PERFORM HUMAN BODY COMMUNICATION AND HUMAN BODY COMMUNICATION METHOD USING THE SAME | 01-25-2018 |