Patent application number | Description | Published |
20100172318 | Handling Hybrid Automatic Repeat Requests in Wireless Systems - A mobile station may implement an uplink hybrid automatic repeat request acknowledgement channel. The mobile station may use frequency hopping to randomize inter cell interference. The mobile unit may use time division multiplexing, frequency division multiplexing, and/or code division multiplexing. | 07-08-2010 |
20100227565 | TRANSMISSION OF CHANNEL QUALITY DATA IN WIRELESS COMMUNICATION SYSTEMS - Briefly, in accordance with one or more embodiments, data transmitted from a transmitter is received in a downlink channel, and channel quality data is fed back to the transmitter in a first uplink channel or in a second uplink channel. Channel quality data is feedback at a lower rate on the first uplink channel and channel quality data is feedback at a higher rate on the second uplink channel in the event there is a higher amount of data to be fed back. Link adaptation may be utilized to select a transmission rate on the second uplink channel, wherein the transmission rate is selected based at least in part on a channel condition or a user location. | 09-09-2010 |
20100272033 | HARQ BUFFER MANAGEMENT AND FEEDBACK DESIGN FOR A WIRELESS SYSTEM - A method is disclosed for performing HARQ buffer management. The HARQ buffer management method is a new approach to buffer overflow management that allows the mobile station, rather than the base station, to control the size of its buffer. The HARQ buffer management reports buffer size, buffer occupancy status, and buffer overflow to the base station, to facilitate efficient communication between the base station and the mobile station. | 10-28-2010 |
20100272047 | FEEDBACK CHANNEL RELEASE - Briefly, in accordance with one or more embodiments, a communication link is established between a base station and a mobile station. The base station transmits a feedback allocation to the mobile station for the allocation of the resources of a feedback channel. If the feedback allocation is to be terminated, the base station transmits a feedback deallocation to the mobile station. If the feedback deallocation is successful, the mobile station transmits a deallocation confirmation to the base station to confirm receipt of the feedback deallocation. | 10-28-2010 |
20100275081 | HARQ FEEDBACK CHANNEL INDEXING SCHEME IN WIRELESS COMMUNICATION SYSTEMS - An enhanced semi-explicit solution for HARQ feedback channel indexing in wireless communication systems is disclosed. The HARQ feedback channel indexing method may be applied to the HARQ feedback channel transmitted in the downlink, as well as the HARQ feedback channel transmitted in the uplink. | 10-28-2010 |
20100287452 | Tail-biting convolutional codes for uplink fast feedback control channel - An apparatus and method for processing fast feedback payload data to generate symbols for transmission through a fast feedback channel in a wireless network are presented. The technique first encodes payload data using a tail biting convolutional code. The encoded bits are then de-multiplexed to five different data subblocks in a sequential fashion. Subblock interleaving is then used to interleave the data of the subblocks according to a predetermine scheme. A bit selector then selects interleaved subblock bit for output. The selected bits may then be modulated by a modulator using quadrature phase shift keying (QPSK). The resulting symbols may then be mapped to a predetermined fast feedback subcarriers within a feedback channel. | 11-11-2010 |
20100329316 | Techniques for transmission of channel quality data in wireless systems - An embodiment of the present invention provides an apparatus, including a transceiver adapted for use in a wireless network using a fast feedback channel design that incorporates a 2-two level adaptive fast feedback channel framework separating uplink (UL) fast feedback channels into primary and secondary UL fast feedback channels. | 12-30-2010 |
20110002279 | UPLINK OPEN LOOP POWER CONTROL SYSTEM - Embodiments of the present invention provide an uplink open loop power control system in which interference over thermal information is transmitted to mobile stations. Other embodiments may be described and claimed. | 01-06-2011 |
20110004796 | ACKNOWLEDGMENT CHANNEL DESIGN FOR WIRELESS ACCESS NETWORKS - Embodiments of the present invention provide an acknowledgment channel design in which an acknowledgment sequence is scrambled with a station-specific scrambling sequence. Other embodiments may be described and claimed. | 01-06-2011 |
20110004804 | Systems and methods for channel coding of wireless communication - Embodiments of an apparatus and method for coding of wireless transmissions channel are generally described herein. Other embodiments may be described and claimed. | 01-06-2011 |
20110029833 | HARQ TIMING CONTROL IN WIRELESS COMMUNICATION SYSTEMS - An apparatus and method for HARQ timing control in wireless communication systems is disclosed. The apparatus and method provides one unified algorithm to determine HARQ timing, with consideration of the downlink-to-uplink ratio, the presence of legacy zones, support of relay zones, and variable transmission time interval length. The disclosed algorithm guarantees sufficient processing time, at both the transmit and receive sides. Further, retransmissions occur in a periodic manner, simplifying the implementation. | 02-03-2011 |
20110044265 | Distributing Group Size Indications to Mobile Stations - Group size indications may be distributed from a base station to a mobile station in the form of assignment-advanced-MAP transmit control signaling. The signaling control information may be sent to a station, such as a mobile station, using a table that indicates the size of a group based on coding rates, such as one-half and one-quarter coding rates. Waste may be controlled by determining a size based on using an unoccupied resource in a group that is adjacent to data resource for data transmission by the station. However, an unoccupied resource in a group that is not adjacent to a data resource is not used for data transmission and is, therefore, wasted. | 02-24-2011 |
20110058522 | METHOD AND APPARATUS FOR TRANSMITTING AN ACK/NACK SIGNAL IN A WIRELESS COMMUNICATION SYSTEM - Machine-readable media, methods, apparatus and system for transmitting ACK/NACK signal in a wireless communication system are described. In some embodiments, a sequence corresponding to one of acknowledge (ACK) information and non-acknowledge (NACK) information may be determined. Then, the sequence may be mapped onto a transmission channel for later transmission from the mobile station to a base station. In some embodiments, the transmission channel may be allocated with at least a part of three feedback mini-tiles (FMTs), wherein each of the FMTs comprises two subcarriers contiguous in frequency domain by six orthogonal frequency division multiplexing (OFDM) symbols contiguous in time domain and the three FMTs being discontinuous in frequency domain. | 03-10-2011 |
20110110342 | Subcarrier permutation to achieve high frequency diversity of OFDMA systems - An embodiment of the present invention provides a method of improving subcarrier permutation to achieve high frequency diversity of OFDMA systems in wireless networks, comprising introducing different tone selections for different symbols, such that if a channel has only a few tones in each symbol of a resource unit it can still have sufficient frequency diversity. | 05-12-2011 |
20110111766 | Techniques to control uplink power - Techniques are described that provide uplink power control techniques that can support different uplink multi-input multi-output (MIMO) transmission schemes. Open and closed loop power control schemes can be used to prescribe the power level of the mobile station. | 05-12-2011 |
20110136448 | UPLINK POWER CONTROL SCHEME - An uplink power control technique may include a simplified maximum sector throughput (SMST) and a generalized maximum sector throughput (GMST). The SMST and GMST techniques may be used to determine a maximum sector throughput and cell-edge throughput to enhance the overall efficiency of the communication system. The uplink power control technique may determine the optimal uplink power value without collecting interference over thermal noise and without computing the individual channel losses in each neighboring sector. | 06-09-2011 |
20110138244 | DETERMINING HYBRID AUTOMATIC REPEAT REQUEST (HARQ) TIMING - A communication apparatus (CA) such as a mobile node/station (MN), a base station (BS), or a radio station (RS) may support determination of HARQ timing. The CA may generate at least in part one or more generalized frames such as a frequency division duplex (FDD) frame or a time division duplex (TDD) frame. The generalized FDD and TDD frames may include support to determine the HARQ timing considering various factors, which may affect the HARQ timing. The FDD and TDD frames may include information corresponding to various factors to determine the HARQ timing considering factors such as DL/UL ratio, number of sub-frames per frame, variable transmission time interval (TTI), relay zones, legacy IEEE® 802.16e zones, and availability of ACKCH. | 06-09-2011 |
20110141980 | WIRELESS BROADBAND RESOURCE ALLOCATION INDEXING - Wireless broadband resource allocation indexing is generally presented. In this regard a method is introduced comprising determining a total number of allowable continuous logical resource unit (LRU) allocations for a bandwidth, removing allowable allocations to generate a set of allocations that can be indexed with fewer bits than the total number of allowable allocations, and storing an index of the set of allocations in a memory. Other embodiments are also disclosed and claimed. | 06-16-2011 |
20110159913 | UPLINK POWER CONTROL IN WIRELESS NETWORKS - Briefly, in accordance with one or more embodiments, one or more interference over thermal noise (IoT) values may be measured for one or more frequency partitions or a sounding area, or combinations thereof, and a difference between a current IoT value and a previous IoT value may be evaluated. If the difference is greater than or equal to a reset threshold, the current IoT value is broadcast to a mobile station to reset the IoT value. Otherwise an IoT differential value is broadcast to the mobile station to update the IoT with the IoT differential value. The mobile station may then perform open loop power control based on the IoT value for uplink broadcast. | 06-30-2011 |
20110216843 | TECHNIQUES TO REDUCE FALSE DETECTION OF CONTROL CHANNEL MESSAGES IN A WIRELESS NETWORK - A method and system of reducing false detection of control channel messages in a wireless communication system. This facilitates blind detection of control channel messages in the wireless communication network. In one embodiment of the invention, the control messages in the wireless communication system are randomized or scrambled to minimize or lower the probability of false detection of the control channel messages. The control channel message includes, but is not limited to, an Assignment Advanced Media Access Protocol (A-A-MAP) Information Element (IE) and the like. In one embodiment of the invention, the contents of the A-A-MAP IE are randomized or scrambled before encoding into A-A-MAP symbols. | 09-08-2011 |
20110280174 | METHOD AND DEVICE FOR IMPLICIT RELAY - Embodiments of a method and apparatus for implicit relay of communication between a base station and a subscriber station within a wireless network are described. Some embodiments may reduce co-channel interference at the subscriber station and some embodiments may allow the base station to reduce its transmission power. Other embodiments may be described and claimed. | 11-17-2011 |
20110312366 | UPLINK POWER HEADROOM CALCULATION AND REPORTING FOR OFDMA CARRIER AGGREGATION COMMUNICATION SYSTEM - A carrier aggregation power headroom reporting method is disclosed. User equipment selects from one of four possible definitions of a single parameter used to calculate the power headroom of the user equipment. The user equipment uses the parameter to calculate the power headroom for two different equations. The two results are transmitted to the enhanced base station. | 12-22-2011 |
20120057703 | TECHNIQUES FOR TRANSMITTING CONTROL CHANNEL INFORMATION - Techniques for protecting information elements transmitted to mobile stations from intruders. The technique can involve applying a randomized mask over an information element and then providing a scrambled cyclic redundancy check (CRC) value. A seed for the randomized mask can be different from a seed for the scrambled CRC value. | 03-08-2012 |
20120063442 | TECHNIQUES FOR QUICK ACCESS CHANNEL INFORMATION LOADING IN WIRELESS NETWORKS - An embodiment of the present invention provides a method of quick access channel information loading in wireless networks, comprising mapping at least one quick access channel to one distributed resource unit of control tiles, said control tiles being spread across consecutive sub-carriers and consecutive OFDMA symbols, wherein each control tile and a predetermined number of sub carriers are used to send a bandwidth indicator and a predetermined number of sub carriers are used to send a bandwidth request message, and wherein there exist unique orthogonal sequences for the bandwidth indicator and each of the sequences are capable of being selected as a preamble sequence. | 03-15-2012 |
20120087337 | METHODS FOR AN UPLINK POWER CONTROL MECHANISM - A method for an uplink power control mechanism is presented. In one embodiment, the method includes receiving an allocation information element (IE) in conjunction with a ranging process. The method includes processing the allocation information element to determine power control parameters including a first parameter about offset control and a second parameter about noise and interference level. The method also includes calculating the power value for each channel based at least in part on two or more power control parameters. | 04-12-2012 |
20120157150 | DOWNLINK AND UPLINK PATHLOSS ESTIMATION GAP ADJUSTMENT SCHEME FOR WIRELESS SYSTEMS - Briefly, in accordance with one or more embodiments, a pathloss gap between a downlink pathloss from a base station to a mobile station and an uplink pathloss from the mobile station to the base station is estimated. An initial offset value for uplink power control of the estimated pathloss gap is calculated based at least in part on said estimating. An offset value for an uplink data channel or an uplink control channel, or combinations thereof, is set based at least in part on the initial offset value. The pathloss gap for uplink power control is compensated using the set offset value. | 06-21-2012 |
20130005376 | METHOD AND APPARATUS FOR INTERFERENCE MITIGATION IN WIRELESS SYSTEMS - A method is disclosed to eliminate inter-cluster interference of user equipment located at the edge of a cluster of cells. The method operates by employing fractional frequency reuse (FFR) principles on clusters or combinations of cells in a wireless neighborhood, in which base stations in the cells coordinate their operations in a scheme known as coordinated multi-point transmission (CoMP). By using the FFR principles to single out edge users of the CoMP cluster, the method mitigates interference and increases throughput for the edge users. | 01-03-2013 |
20130083678 | MULTI-RADIO MEDIUM-AGNOSTIC ACCESS ARCHITECTURE - A multi-radio medium-agnostic access architecture is proposed. The multi-radio medium-agnostic architecture features a medium-agnostic MAC that interfaces between the TCP/IP and the physical layers of user equipment, such as a laptop computer or cellular phone having multiple radios, so that the radios in the user equipment may operate simultaneously, seamlessly, and transparently to higher layers. | 04-04-2013 |
20130109432 | TECHNIQUES TO CONTROL UPLINK POWER | 05-02-2013 |
20130188502 | Techniques for Uplink Coverage Analysis - Examples are disclosed for analyzing uplink interference or pathloss associated with uplink coverage provided by one or more base stations for a wireless network based on logged uplink signal quality or interference information at least temporarily maintained at a wireless device. In some examples, a base station may request the logged uplink signal quality or interference information from the wireless device. The wireless devices may have been configured to measure uplink signal quality or interference characteristics for one or more communication links between the wireless device and one or more base stations of the wireless network. The logged uplink signal quality or interference information may be based on the measured uplink signal quality or interference characteristics. Other examples are described and claimed. | 07-25-2013 |
20130188540 | CONTROLLING A POWER LEVEL OF AN UPLINK CONTROL CHANNEL - A technique includes, in mobile station that is part of a coordinated multi-point reception transmission/reception (CoMP) system, receiving a message from a base station identifying at least one parameter specific to the mobile station or specific to a reception set used by the mobile station; and regulating power in communications by the mobile station based at least in part on the parameter(s). | 07-25-2013 |
20130188585 | UPLINK FEEDBACK CHANNEL REPORTING MECHANISM IN WIRELESS SYSTEMS - An uplink feedback channel reporting method is disclosed for using the primary and secondary fast feedback channels to efficiently report the channel quality, MIMO feedback, and CQI types of data from a mobile station to a base station. The reporting method reports regular information periodically and non-regular information on demand. | 07-25-2013 |
20130265981 | UPLINK POWER CONTROL SCHEME FOR DISTRIBUTED RRH SYSTEMS WITH SAME CELL ID - Uplink power control in a macro cell in a wireless network comprises transmitting a reference signal from a base station device to at least one wireless device within the macro cell. The macro cell comprises the base station device and at least one radio transmitter device that is communicatively coupled to and remote from the base station device. The base station device and one or more radio transmitter devices could be selected to be a transmission point, a reception point or a combination thereof, for each wireless device. Information relating to a transmission power of the base station device is also transmitted to the at least one wireless device. An uplink signal is received from the at least one wireless device containing information relating to an uplink power determination that is based on the reference signal and the information relating to the transmission power of the base station device. | 10-10-2013 |
20130272132 | SUPPORTED, SELF-OPTIMIZING WIRELESS NETWORKS, OPTIMIZED WITH RESPECT TO ENERGY, MOBILITY, AND CAPACITY - Technology is discussed for self-optimization approaches within wireless networks to optimize networks for energy efficiency, load capacity, and/or mobility, together with new, supporting channel state measurements and handover techniques. New, Channel State Information-Reference Signals (CSI-RSs) for yet-to-be-configured Cell-IDentifications (Cell-IDs) can be used to determine whether adjacent transmission cells can provide coverage for transmission cells that can be switched off for energy efficiency during formation of a Single Frequency Network (SFN). New approaches are also discussed to facilitate mobility within such a network. The new CSI-RSs and mobility approaches can also be used to split up such a SFN when changing load demands so require. Additionally, such new approaches can be used to create a SFN with a common Cell-ID where high mobility is required, such as near a roadway, and to break it up where high capacity is required, such as during a period of traffic congestion. | 10-17-2013 |
20130272262 | MULTI-ACCESS SCHEME AND SIGNAL STRUCTURE FOR D2D COMMUNICATIONS - A signal structure for use in D2D communications is described. In one embodiment, a preamble for automatic gain control at the receiver end is included in the transmitted signal. Techniques for scheduling of D2D transmissions using carrier sensing multiple access (CSMA) and a power control schemes for interference management are also described. | 10-17-2013 |
20130273923 | APPARATUS AND METHOD TO ENABLE DEVICE-TO-DEVICE (D2D) DISCOVERY IN CELLULAR NETWORKS - An apparatus and method of allowing user equipment (UE) to transmit information directly with other user equipment, using a device-to-device (D2D) mode is disclosed herein. A D2D UE (dUE | 10-17-2013 |
20130288713 | METHOD AND APPARATUS FOR WIRELESS LOCATION TRACKING - A method and apparatus for wireless location tracking by a wireless device. In one embodiment of the invention, the wireless device has logic to determine the information of a plurality of specific location points and to determine the location of the wireless device based on the information of the plurality of specific location points. The specific location points are selected from a target area where the wireless device is located. By selecting the specific location points in the target area, it allows hidden Access Points (APs) or Base Stations (BSs) to be detected and measured and it increases the accuracy of the tracking of the wireless device. | 10-31-2013 |
20130301438 | APPARATUS AND METHOD TO ESTABLISH A DEVICE-TO-DEVICE (D2D) CONNECTION IN A 3GPP-LTE NETWORK USING A DISTRIBUTED CHANNEL SCAN - An apparatus and method that allow user equipment (UE) to transmit information directly with other user equipment, using a device-to-device (D2D) mode is disclosed herein. A first D2D UE (dUE | 11-14-2013 |
20130336141 | WIRELESS ADAPTIVE PACKET CONTROL MESSAGE APPARATUS, SYSTEMS, AND METHODS - Embodiments of wireless adaptive control message apparatus, systems, and methods are described generally herein. Other embodiments may be described and claimed. | 12-19-2013 |
20130336264 | TECHNIQUES FOR TRANSMITTING CONTROL CHANNEL INFORMATION - Techniques for protecting information elements transmitted to mobile stations from intruders. The technique can involve applying a randomized mask over an information element and then providing a scrambled cyclic redundancy check (CRC) value. A seed for the randomized mask can be different from a seed for the scrambled CRC value. | 12-19-2013 |
20140003262 | SOUNDING REFERENCE SIGNAL (SRS) MECHANISM FOR INTRACELL DEVICE-TO-DEVICE (D2D) COMMUNICATION | 01-02-2014 |
20140050103 | MOBILE PROXY FOR CLOUD RADIO ACCESS NETWORK - Embodiments of computer-implemented methods, systems, computing devices, and computer-readable media are described herein for monitoring, by a mobile proxy associated with a control system of a cloud radio access network (“C-RAN”), application layer data traffic between the control system and a wireless communication device. In various embodiments, the mobile proxy may, based on the monitoring, facilitate alteration of data plane or control plane processing by the wireless communication device or a remote radio head (“RRH”) associated with the C-RAN. | 02-20-2014 |
20140115058 | WIRELESS WIDE AREA NETWORK (WWAN) ASSISTED PROXIMITY WIRELESS LOCAL AREA NETWORK (WLAN) PEER-TO-PEER (P2P) CONNECTION AND OFFLOADING - A system and method for wireless wide area network (WWAN) assisted proximity wireless local area network (WLAN) peer-to-peer (P2P) connection and offloading is disclosed. The method includes the operation of identifying a first wireless device and a second wireless device between which a WLAN P2P connection is desired. Each wireless device can have a WWAN radio and a WLAN radio. WLAN information can be sent for at least one of the first and second wireless devices via the WWAN to a P2P configuration server. A WLAN P2P configuration can be received from the P2P configuration server at the first and second wireless devices via the WWAN for WLAN P2P communication between the first and second wireless devices. A WLAN P2P connection can be set up between the first and second wireless devices using the WLAN P2P configuration. The first and the second wireless devices can communicate using the WLAN P2P connection. | 04-24-2014 |
20140169298 | DEVICE-TO-DEVICE DISTRIBUTED SCHEDULING - A system and method for distributed scheduling of transmissions between device-to-device (D2D) communications is disclosed. The distributed scheduling method employs a distributed scheduling structure in which device identifiers rather than connection identifiers are used to enable scheduling of a D2D data transfer between devices in a wireless neighborhood. The novel distributed scheduling structure is scalable to a larger number of D2D devices than is feasible with a connection ID-based tone matrix. | 06-19-2014 |
20140198694 | TRANSMISSION POWER CONTROL SCHEMES FOR D2D COMMUNICATIONS - Power control schemes for D2D communications are described. The schemes control the transmission power of a UE during D2D communications in a manner that reduces interference while maintaining the D2D communications link and the cellular link with the eNB. Open-loop and/or closed-loop techniques are employed. | 07-17-2014 |
20140233445 | MULTI-CHANNEL POWER CONTROL - Embodiments of computer-implemented methods, systems, computing devices, and computer-readable media are described herein for assigning transmission power to one or more components carriers in an uplink transmission utilizing carrier aggregation. In one embodiment, power is assigned to a component carrier based on the priority level of the component carrier. In another embodiment, power is assigned based on absolute priority order. In yet another embodiment, power is assigned based on relative priority order. | 08-21-2014 |
20140241315 | RADIO ACCESS NETWORK (RAN) FOR PEER-TO-PEER (P2P) COMMUNICATION - A serving gateway (S-GW) in a radio access network (RAN) server system for peer-to-peer (P2P) communication can include a P2P content manager. The P2P content manager can be configured for receiving P2P data content from other nodes in a P2P network, forwarding the P2P data content to other nodes in the P2P network, and transmitting the P2P data content to a mobile device associated with the S-GW in a downlink (DL) transmission. The serving gateway can be a node in the P2P network and coupled to a transmission station in the RAN. The P2P data content includes at least one P2P data packet. | 08-28-2014 |
20140286133 | DEVICE-TO-DEVICE ANGLE DETECTION WITH ULTRASOUND AND WIRELESS SIGNAL - A method for determining orientation of an electronic device relative to another electronic device is described. The method includes synchronizing internal clock of a first electronic device with internal clock of a second electronic device using electromagnetic signals communicated between the first electronic device and the second electronic device, sending two or more sound waves from the second electronic device, receiving the two or more sound waves at the first electronic device, and calculating orientation of the first electronic device relative to the second electronic device based on a difference in time of arrival of the two or more sound waves at the first electronic device. The first electronic device and the second electronic device each have at least one transceiver configured to send and receive electromagnetic signals. The first electronic device has two or more acoustoelectric transducers and the second electronic device has one or more acoustoelectric transducer. | 09-25-2014 |
20150055454 | USER EQUIPMENT AND METHOD FOR ENHANCED UPLINK POWER CONTROL - Embodiments of user equipment and methods for improved uplink transmission power management and scheduling, are generally described herein. For example, in an aspect, a method of uplink power management is presented, the method includes determining whether a total desired transmission power exceeds a total configured maximum output power for a subframe. When the total desired transmission power exceeds the total configured maximum output power, the method includes allocating a minimum proactive power limitation to each serving cell, assigning a remaining power to one or more channels based on priority, and computing a total power assignment based on the allocating and the assigning. | 02-26-2015 |