Retransmission If No Ack Returned Patents (Class 714/749)
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Patent number: 9712286Abstract: A user equipment (UE) implements improved communication methods which enable uplink (UL) transmissions consistent with an UL timeline. The UE may have a transmit duty cycle and may transmit acknowledge/negative acknowledge messages to a base station according to the transmit duty cycle. Additionally, the UE may be configured to determine signal-to-interference-plus noise ratio (SINR) between the UE and the base station and compare SINR to a threshold. The UE may transmit redundancy versions of data in consecutive sub-frames with a duty cycle of two transmissions per X+1 sub-frames if SINR is equal or above the threshold and redundancy versions using a duty cycle of one transmission per X sub-frames if SINR is below the threshold. Further, the UE may be configured to communicate a number of UL HARQ processes supported by the UE, receive first information in a first sub-frame, and send second information X sub-frames after the first sub-frame.Type: GrantFiled: December 9, 2015Date of Patent: July 18, 2017Assignee: Apple Inc.Inventors: Tarik Tabet, Syed Aon Mujtaba
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Patent number: 9713037Abstract: This invention discloses a wireless communication device and a method of determining a target set of transmission rates of the wireless communication device. The wireless communication device transmits data packets according to a plurality of transmission rates included in the target set of transmission rates. The method includes steps of: providing a plurality of candidate sets of transmission rates; transmitting a plurality of data packets according to a primary set of transmission rates; counting retry times of the data packets in a predetermined period of time and generating a counting result; and selecting one of the candidate sets of transmission rates according to the counting result to be the target set of transmission rates.Type: GrantFiled: August 19, 2014Date of Patent: July 18, 2017Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Wei-Hsuan Chang, Chung-Yao Chang
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Patent number: 9706581Abstract: A method and apparatus for a back-off timer having different retry time classes, the method checking whether a connection establishment attempt for a first service on a connection slot is in a back-off time that equals or exceeds a predetermined threshold; and if yes, allowing a second service access to the connection slot.Type: GrantFiled: November 5, 2010Date of Patent: July 11, 2017Assignee: BlackBerry LimitedInventors: Joseph Tu-Long Deu-Ngoc, Jeremy Thompson
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Patent number: 9699400Abstract: Techniques are disclosed for systems and methods to provide dynamic data management for a system having one or more cameras such as network cameras. A camera system may include one or more network cameras and a remote device. The remote device may receive camera data from one or more of the network cameras according to data management settings for the camera system. The data management settings may be determined by the system based on an available bandwidth determined based on an exchange of test data between the camera and the remote device. The data management settings can be determined during setup of one or more network cameras and/or during operation of one or more network cameras. The data management settings may include settings for video data to be transmitted over the network such as a resolution, a frame rate, a number of video channels, or other settings.Type: GrantFiled: June 4, 2015Date of Patent: July 4, 2017Assignee: FLIR SYSTEMS, INC.Inventor: Vlad Kardashov
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Patent number: 9686036Abstract: A method, an apparatus and a system for transmitting upstream burst data in a passive optical network system. Delimitation of end of upstream burst data is realized in the method. The method includes: transmitting a sync pattern sequence and a burst delimiter after turning on a laser; transmitting data to be sent; and transmitting an end-of-burst delimiter after the transmitting of data to be sent is finished. A method for receiving upstream burst data and a related apparatus and system are also provided in the embodiments of the invention.Type: GrantFiled: October 28, 2010Date of Patent: June 20, 2017Assignee: Huawei Technologies Co., Ltd.Inventors: Jing Li, Dongyu Geng, Dongning Feng, Raymond W. K. Leung, Frank Effenberger
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Patent number: 9648619Abstract: A method is provided for operating a relay station (RS) in a wireless communication system based on time division duplex (TDD) using a radio frame composed of a plurality of downlink subframes and at least one uplink subframe. A pair of subframes is determined to be used for communication between a base station (BS) and the RS. The pair of subframes comprises a configured downlink subframe and a configured uplink subframe. A signal is received from the BS in the configured downlink subframe which is configured by the RS as a multicast/broadcast single frequency network (MBSFN) subframe, and a signal is transmitted to the BS in the configured uplink subframe.Type: GrantFiled: April 25, 2016Date of Patent: May 9, 2017Assignee: LG Electronics Inc.Inventors: Han Byul Seo, Byoung Hoon Kim
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Patent number: 9628224Abstract: A device for optimizing a data compression level when processing a Hybrid Automatic Repeat reQuest (HARQ) signal includes a combiner which receives a log likelihood ratio (LLR) signal, determines whether the LLR signal is a new or retransmitted signal, and generates a composite signal by combining the LLR signal with a related signal received and previously stored when the LLR signal is the retransmitted signal; a compression level decision unit which calculates a first compression level based on quality of a received signal, calculates a second compression level based on an available memory size, and decides a final compression level according to the first compression level and the second compression level; a compressor which compresses the LLR signal according to the final compression level; a HARQ memory which stores the compressed signal; and a decompressor which decompresses a signal read from the HARQ memory.Type: GrantFiled: June 24, 2014Date of Patent: April 18, 2017Assignee: Samsung Electronics Co., LtdInventors: Hae Chul Lee, Chae Hag Yi, Hee Gu Kang, Jae Young Lee
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Patent number: 9609092Abstract: A wireless OFDM transceiver uses a method of utilizing subcarrier characteristics, such as phase and amplitude, to indicate the bandwidth of a transmitted packet. By using different subcarrier characteristics in the long training symbols of a packet at the transmitter, the packet is associated with different bandwidths. The different bandwidths are used in a wireless network where devices can communicate using different frequency bands that overlap one another and where one is wider than the other.Type: GrantFiled: May 6, 2016Date of Patent: March 28, 2017Assignee: APPLIED TRENSFORM, LLCInventor: Joon Bae Kim
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Patent number: 9609091Abstract: A wireless OFDM transceiver uses subcarrier characteristics, such as phase and amplitude, to detect the bandwidth of a received packet. By detecting different subcarrier characteristics in the long training symbols of a packet at the receiver, the packet is associated with different bandwidths. The different bandwidths are used in a wireless network where devices can communicate using different frequency bands that overlap one another and where one is wider than the other.Type: GrantFiled: May 6, 2016Date of Patent: March 28, 2017Assignee: APPLIED TRANSFORM, LLCInventor: Joon Bae Kim
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Patent number: 9602637Abstract: A wireless OFDM transceiver uses subcarrier characteristics, such as phase and amplitude, to detect the bandwidth of a received packet. By detecting different subcarrier characteristics in the long training symbols of a packet at the receiver, the packet is associated with different bandwidths. The different bandwidths are used in a wireless network where devices can communicate using different frequency bands that overlap one another and where one is wider than the other.Type: GrantFiled: May 6, 2016Date of Patent: March 21, 2017Assignee: APPLIED TRANSFORM, LLCInventor: Joon Bae Kim
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Patent number: 9603136Abstract: UE-specific search spaces (UE-SS) for a carrier-aggregated communication system are introduced to decrease the number of blind decoding attempts, decrease downlink control information (DCI) blocking probability, and maintain good blind decoding performance. In the proposed control channel allocation method, the control channel searching method and the communication apparatus thereof, the UE-specific search spaces are extended except control channel element (CCE) aggregation level one. Further, a new CCE aggregation level is created in the UE-specific search spaces. The sum of the number of control channel candidates for all aggregation levels is bounded by the maximum number of PDCCH candidates. In addition, uplink MIMO grant command is just allocated in a pre-configured component carrier or a set of pre-configured component carriers, but uplink MIMO grant command is not allocated in the remaining component carriers.Type: GrantFiled: November 22, 2013Date of Patent: March 21, 2017Assignee: Industrial Technology Research InstituteInventors: Chia-Wen Hsieh, Chien-Min Lee, Ren-Jr Chen
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Patent number: 9596327Abstract: A wireless OFDM transceiver uses a method of detecting subcarrier characteristics, such as phase and amplitude, to determine the bandwidth of a received packet. By detecting different subcarrier characteristics in the long training symbols of a packet at the receiver, the packet is associated with different bandwidths. The different bandwidths are used in a wireless network where devices can communicate using two frequency bands that overlap one another and where one is wider than the other.Type: GrantFiled: May 6, 2016Date of Patent: March 14, 2017Assignee: APPLIED TRANSFORM, LLCInventor: Joon Bae Kim
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Patent number: 9578675Abstract: A method and apparatus for changing Discontinuous Reception (DRX) cycle in a wireless communication system is provided. A wireless device configures a short DRX cycle and a long DRX cycle. When a drx-ShortCycle timer expires, it is determined whether a drxInactivityTimer is run or not. Therefore, the wireless device uses one of the short DRX cycle and the long DRX cycle according to the determination. Discontinuous reception (DRX) cycle can be configured flexibly and a CSI report between the UE and the eNB can be complied with accurately.Type: GrantFiled: July 8, 2013Date of Patent: February 21, 2017Assignee: LG ELECTRONICS INC.Inventors: Sunyoung Lee, Youngdae Lee, Sungjun Park, Seungjune Yi, Sunghoon Jung
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Patent number: 9565673Abstract: This disclosure deals with an apparatus in a base station for controlling transmission of delay-sensitive data from a transmitter over a transmission link in a packet data communication network, which transmitter is capable of changing between a TTI bundling enabled mode and a TTI bundling disabled mode. The apparatus comprises: a receiver for receiving data from the transmitter over the transmission link; a decision unit for deciding that the transmitter should change TTI bundling mode; a silent mode detection unit for detecting that the transmitter is in the silent mode; and a triggering unit for triggering change of TTI bundling mode in response to deciding that the transmitter should change TTI bundling mode and in response to detecting that the transmitter is in the silent mode. The disclosure further relates to a corresponding method.Type: GrantFiled: January 23, 2012Date of Patent: February 7, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: David Sandberg, Alexander Langereis
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Patent number: 9531506Abstract: A device and method for handling HARQ feedback in a mobile communication system are disclosed. The HARQ feedback handling method includes: analyzing a control message from a base station to recognize presence of HARQ feedback relationships between downlink carriers and uplink carriers; determining an uplink carrier (a downlink carrier) to support HARQ feedback in response to downlink traffic (uplink traffic) sent through a downlink carrier (an uplink carrier); and sending (receiving) HARQ feedback through the determined uplink carrier (downlink carrier).Type: GrantFiled: October 1, 2010Date of Patent: December 27, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Soeng Hun Kim, Gert-Jan Van Lieshout, Aris Papasakellariou
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Patent number: 9521088Abstract: A packet quota value, which indicates a maximum number of network packets that a network appliance processes before switching to a different task, is modified. Log data, which includes multiple log entries spanning a time interval, is accessed. Each log entry includes a processing time that indicates how much time the network appliance spent performing network traffic tasks before switching to the different task. The log data is analyzed. Responsive to the analysis indicating that a current state of network traffic is heavier than a maximum state of network traffic that was observed during the time interval, the packet quota value is increased. Responsive to the analysis indicating that the current state of network traffic is lighter than a minimum state of network traffic that was observed during the time interval, the packet quota value is decreased.Type: GrantFiled: May 9, 2013Date of Patent: December 13, 2016Assignee: Citrix Systems, Inc.Inventors: Mohit Saxena, Ramanjaneyulu Y Talla, Saravana Annamalaisami
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Patent number: 9515775Abstract: The performance of TCP (and other protocols) is improved in a data network by segmenting the TCP path and implementing a protocol over the network. The protocol provides a multiplexed tunnel for a multiplicity of TCP sessions from a client to a cloud proxy. The protocol implements congestion management, flow control, reliability, and link monitoring. Other network protocols (such as UDP) are supported with a reliability protocol based upon network coding that improves the transmission reliability.Type: GrantFiled: November 7, 2013Date of Patent: December 6, 2016Assignee: Instart Logic, Inc.Inventors: Igor Zhovnirnovsky, Subhash Roy
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Patent number: 9451248Abstract: A data processing device calculates the number of temporary redundant packets based on the transmission rate of a wireless network and the frame composition ratio between I frames and P frames, calculates a temporary redundant packet rate based on the transmission rate and the number of temporary redundant packets, calculates an encoding rate from the transmission rate and the temporary redundant packet rate, encodes video data at the encoding rate to packetize the video data, calculates the number of redundant packets added to each frame obtained as a result of the processing on the video data, and adds redundant packets to each frame.Type: GrantFiled: September 27, 2012Date of Patent: September 20, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tomohiro Imai, Yuko Otsu
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Patent number: 9451604Abstract: Described are methods and devices for enabling D2D communications with signal structures that require minimal changes to the current LTE architecture. In the embodiments described, the eNB grants resources to UEs for D2D communication and either initiates or permits a pair of UEs to establish a D2D link. Certain embodiments are designed to minimize changes to the current LTE control signaling structure by having the control signaling always come from the eNB as in a normal cellular link so that the transmitting UE transmits over a data channel (e.g., PUSCH/PDSCH) that the receiving UE is able to decode.Type: GrantFiled: August 2, 2013Date of Patent: September 20, 2016Assignee: Intel CorporationInventors: Feng Xue, Qinghua Li, Huaning Niu, Jong-Kae Fwu
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Patent number: 9451417Abstract: A system and method for reliable multicast communications is disclosed herein. In one aspect, a first station may receive a first multicast frame having a first modulation and coding scheme and a first sequence number. The station may then receive a subsequent negative acknowledgement request having a second modulation and coding scheme and a indicating a second sequence number for previously transmitted multicast frame, with the second modulation and coding scheme having a lower data rate than the first modulation and coding scheme. The station may then selectively acknowledge the negative acknowledgement request based on a comparison of first sequence number and the second sequence number. In another aspect, the station transmits a negative acknowledgement if the second sequence number does not match the first sequence number and may further receive acknowledgement frame from an access point.Type: GrantFiled: July 29, 2014Date of Patent: September 20, 2016Assignee: QUALCOMM IncorporatedInventors: Santosh Paul Abraham, George Cherian
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Patent number: 9425942Abstract: In the present invention, even if different UL-DL configurations are set for a plurality of unit bands, notification timing of error detection results for SCell is not dispersed complicatedly, and the processing relating to the error detection results can be simplified. At the reference notification timing of a response signal with respect to downlink data of a second unit band, if a sub-frame of the second unit band is an uplink communication sub-frame and a sub-frame of a first unit band is a downlink communication sub-frame, a control unit (208) transmits the response signal with respect to the downlink data in a specific uplink communication sub-frame (for example, #2 or #7) set in the first unit band.Type: GrantFiled: July 27, 2012Date of Patent: August 23, 2016Assignee: Sun Patent TrustInventors: Toru Oizumi, Ayako Horiuchi, Akihiko Nishio
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Patent number: 9417938Abstract: A remote procedure call chain is provided that replaces multiple consecutive remote procedure calls to multiple servers from a client by allowing a client to specify multiple functions to be performed consecutively at multiple servers in a single remote procedure call chain. The remote procedure call chain is executed by a sequence of multiple servers. Each server executes a service function and a chaining function of the remote procedure call chain. The chaining function uses the state of the remote procedure call chain in the sequence of servers to determine the next server to receive the remote procedure call chain, and the service function to be executed by that server. After the last service function is performed, the last server in the sequence of servers sends the results of the executed service functions to the client that originated the remote procedure call chain.Type: GrantFiled: March 17, 2009Date of Patent: August 16, 2016Assignee: Microsoft Technology Licensing, LLCInventors: Marcos K. Aguilera, Dahlia Malkhi, Ramakrishna R. Kotla, Yee Jiun Song
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Patent number: 9419762Abstract: The present invention relates to a wireless communication system.Type: GrantFiled: November 1, 2012Date of Patent: August 16, 2016Assignee: LG ELECTRONICS INC.Inventors: Suckchel Yang, Joonkui Ahn, Dongyoun Seo
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Patent number: 9408253Abstract: A technique for communication with a local area network (LAN) via a wireless connection determines whether a first short-range, high-speed, wireless communication path is available and connects to the LAN using a longer range, lower speed wireless communication path if the short-range, high-speed wireless communication path is not available. The low-range, high-speed wireless communication path is a wireless communication path is a wireless LAN connection such as an IEE 802.11-compliant wireless LAN and the long-range, low-sped wireless communication mode is a cellular CDMA-type connection. Determining whether the first IEEE 802.11 mode is available can be done by detecting a beacon signal, or transmitting a probe request message and detecting a probe response message in response to the probe request, indicating the presence or availability of the short-range, high-speed wireless communication path.Type: GrantFiled: January 16, 2015Date of Patent: August 2, 2016Assignee: IPR LICENSING, INC.Inventor: Thomas E. Gorsuch
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Patent number: 9396144Abstract: A data reception circuit removes reliance on stacked transistors providing analog logic processing. A first trigger element outputs an up signal in response to receiving an indication of receipt of a data signal by a receiving device without consideration of an output signal from the receiving device. A second trigger element outputs a down signal in response to receiving an indication of receipt of a data signal by a receiving device without consideration of an output signal from the receiving device. Switches control provision of signals to a received signal line for the receiving device in response to the outputs of the trigger elements. A blocking feedback circuit provides a blocking signal for the receiving device to effect blocking the receiving device from sending data to the sending device when the receiving device is receiving data from the sending device.Type: GrantFiled: November 30, 2012Date of Patent: July 19, 2016Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Jie Feng, Haiyang Yan
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Patent number: 9397800Abstract: A duplexing method is provided that combines aspects of Frequency Division Duplex (FDD) and Time Division Duplex (TDD) methods in a network, such as a Long Term Evolution (LTE) network. The duplexing method may be implemented on an existing FDD network by replacing the FDD uplink (UL)-only radio frame with a full TDD radio frame having dynamically allocable UL and downlink (DL) sub-frames. Alternatively, the duplexing method may be implemented on an existing TDD network by adding a second frequency to pair with an existing frequency over which a FDD DL-only radio frame can be run.Type: GrantFiled: March 26, 2013Date of Patent: July 19, 2016Assignee: BROADCOM CORPORATIONInventors: Kaveh Ghaboosi, Manish Goldie Vemulapalli, Noel James Oates
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Patent number: 9397744Abstract: A data transmission method of a source node in a cooperative communication system includes: performing a beamforming to a relay node; transmitting data to the relay node; performing a beamforming to a destination node; and transmitting data to the destination node.Type: GrantFiled: July 8, 2010Date of Patent: July 19, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kap-Seok Chang, Woo-Yong Lee, Kyeongpyo Kim, Hyoung-Jin Kwon, Hyun-Kyu Chung
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Patent number: 9386602Abstract: A method at a user equipment for hybrid automatic repeat request (HARQ) operation, the user equipment operating on a primary carrier having a first duplex mode and on at least one secondary carrier having a second duplex mode, the method using HARQ timing of the first duplex mode if the timing of the first duplex mode promotes acknowledgement opportunities over using HARQ timing of the second duplex mode; and using HARQ timing of the second duplex mode if the timing of the second duplex mode promotes acknowledgement opportunities over using HARQ timing of the first duplex mode.Type: GrantFiled: September 20, 2013Date of Patent: July 5, 2016Assignee: BlackBerry LimitedInventors: Yiping Wang, Zhijun Cai, David Nigel Freeman
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Patent number: 9374200Abstract: A radio device/user equipment determines that a later received grant of bundled uplink resources collides with an earlier received grant of bundled uplink resources. The earlier received grant has associated with it an active re-transmission process. In response to that collision determination, at least a re-transmission (HARQ) buffer associated with the earlier received grant is flushed. In one embodiment all HARQ buffers are flushed; in another the HARQ buffer associated with the earlier received grant is flushed while the one associated with the later received grant is not. Several ways are described to determine whether there is a collision: whether the later received grant aligns with a boundary of the resources granted by the earlier received grant, and whether there is an actual collision among the different HARQ processes. Calculating HARQ process numbers is also described where an offset is used to account for the grants allocating bundled TTIs.Type: GrantFiled: October 11, 2013Date of Patent: June 21, 2016Assignee: BROADCOM CORPORATIONInventors: Kalle Petteri Kela, Lauri Johannes Eerolainen
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Patent number: 9350428Abstract: A method of link adaptation performed by an access point supporting multi user(MU) multiple input multiple output(MIMO) in wireless local area network system is provided. The method includes transmitting, to a first station, a physical layer convergence procedure (PLCP) protocol data unit (PPDU) containing a modulation and coding scheme(MCS) request(MRQ) and receiving, from the first station, a MCS feedback(MFB) in response to the MRQ, wherein the first station is one of destination stations of MU-MIMO transmission performed by the access point, and the MFB includes a recommended MCS value computed, by the first station, on the assumption that the first station, as a member of the destination stations, receives data transmitted over at least one spatial stream allocated to the first station in MU-MIMO transmission.Type: GrantFiled: December 1, 2011Date of Patent: May 24, 2016Assignee: LG ELECTRONICS INC.Inventors: Byeong Woo Kang, Ill Soo Sohn, Dae Won Lee, Yong Ho Seok
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Patent number: 9344228Abstract: In wireless communication networks that use ARQ/HARQ feedback protocols, when a first device receives an apparent HARQ ACK from a second device, the first device may make a new transmission using a HARQ Channel ID whose previous usage was under conditions indicating a likelihood of error in the ACK. When the second device receives the new transmission, the reuse of that HARQ Channel ID in a new transmission rather than a retransmission lets the second device know that its previous NAK transmission was incorrectly received as an ACK.Type: GrantFiled: January 27, 2015Date of Patent: May 17, 2016Assignee: Intel CorporationInventors: Yuan Zhu, Xiangying Yang, Hujun Yin
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Patent number: 9294788Abstract: A method and cryptographic system for descrambling content packets, included within a digital transport stream, having conditional access messages and header data. The method and system require a deciphering algorithm, processed by a descrambler of a multimedia unit, using an initialization vector as a first input and a control word as a second input. The multimedia unit is connectable to a security module for processing the conditional access messages and extracting control words therefrom. The initialization vector, or intermediate data to determine the initialization vector, is the result of a cryptographic function based on at least one variable extracted from the digital transport stream and processed by the security module.Type: GrantFiled: November 20, 2012Date of Patent: March 22, 2016Assignee: NAGRAVISION S.A.Inventors: Bertrand Wendling, Corinne Le Buhan
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Patent number: 9288004Abstract: Time division multiplexing (TDM) partitioning is one of the inter-cell interference coordination (ICIC) mechanisms considered for a heterogeneous network (HetNet) ICIC in a co-channel deployment. For example, in subframes that are pre-allocated to an evolved Node B (eNB), neighbor eNBs may not transmit, hence interference experienced by served user equipments (UEs) may be reduced. Semi-persistent scheduling (SPS) grants may have various available periodicities, which may not be compatible with TDM partitioning. Therefore, a UE may miss an SPS opportunity that was scheduled for a subframe that was not usable by the UE. Hence, using SPS grants with small periodicities in a heterogeneous network with TDM partitioning may require changes which may include adjusting the periodicities of the SPS grants, rescheduling of uplink SPS messages based on resource partitioning information (RPI), and/or determining RPI based on current SPS grants.Type: GrantFiled: August 23, 2013Date of Patent: March 15, 2016Assignee: QUALCOMM IncorporatedInventors: Alan Barbieri, Hao Xu, Madhavan Srinivasan Vajapeyam, Aleksandar Damnjanovic
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Patent number: 9288016Abstract: The present specification discloses a method for making a hybrid automatic repeat request (HARQ) for a terminal in a wireless connection system supporting peer-to-peer (P2P) communication between terminals, the method comprising: receiving, from a base station, control data for P2P communication; transmitting, based on the received control data, data from an uplink or downlink subframe, which is defined as a region for transmission to another terminal; and receiving an Acknowledgement (ACK) or not-Acknowledgement (NACK) regarding the sent data from an uplink subframe, linked to the downlink or uplink subframe, among the subframes defined as a region for reception from another terminal. The control data comprises a frame structure data used in P2P communication, wherein the frame structure data comprises an arrangement of the transmission and reception regions and HARQ linkages between subframes.Type: GrantFiled: December 23, 2011Date of Patent: March 15, 2016Assignee: LG ELECTRONICS INC.Inventors: Dongguk Lim, Jiwoong Jang, Hangyu Cho, Kyujin Park
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Patent number: 9264368Abstract: Devices and systems are described for transmitting data packets over a chip-to-chip communications link. For example, a device includes a hardware replay buffer to store a data packet. The data packet includes an overhead portion and a payload portion. Additionally, the transmitter device includes circuitry configured to record a memory location within the hardware replay buffer corresponding to an interruption in transmission to a receiver device of the payload portion of the data packet through a physical serial communications link. The memory location references an intermediate location of the payload portion of the data packet.Type: GrantFiled: January 28, 2013Date of Patent: February 16, 2016Assignee: Marvell World Trade Ltd.Inventors: Ian Swarbrick, Joseph Jun Cao
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Patent number: 9265035Abstract: A method and a base station of transmitting a data block are provided. At least one data block is transmitted via at least one of at least two downlink frequency bands. A modulation symbol and N spreading sequences are received. Acknowledgement/negative acknowledgement (A/N) information is determined in accordance with the modulation symbol and the N spreading sequences. The modulation symbol and the N spreading sequences jointly determine the A/N information. And the at least one data block may be retransmitted depending on the A/N information determined.Type: GrantFiled: July 3, 2014Date of Patent: February 16, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Jianghua Liu, Mattias Frenne
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Patent number: 9244759Abstract: An error-recovery method to enable error-free message transfer between nodes of a computer network. A first node of the network sends a packet to a second node of the network over a link between the nodes, and the first node keeps a copy of the packet on a sending end of the link until the first node receives acknowledgment from the second node that the packet was received without error. The second node tests the packet to determine if the packet is error free. If the packet is not error free, the second node sets a flag to mark the packet as corrupt. The second node returns acknowledgement to the first node specifying whether the packet was received with or without error. When the packet is received with error, the link is returned to a known state and the packet is sent again to the second node.Type: GrantFiled: January 6, 2014Date of Patent: January 26, 2016Assignee: International Business Machines CorporationInventors: Matthias A. Blumrich, Paul W. Coteus, Dong Chen, Alan Gara, Mark E. Giampapa, Philip Heidelberger, Dirk Hoenicke, Todd Takken, Burkhard Steinmacher-Burow, Pavlos M. Vranas
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Patent number: 9225476Abstract: A communication device (100) for communicating in accordance with a hybrid automatic repeat request protocol, the communication device (100) comprising a receiving unit (102) adapted for receiving a communication message including soft-bit values, the soft-bit values representing reliability information for received verification data verifying proper transmission of the communication message, a storage unit (104) adapted for storing the soft-bit values, and a storage management unit (106) adapted for dynamically managing storage of the soft-bit values in the storage unit (104) so that soft-bit values failing to fulfill at least one relevance criteria are not maintained in the storage unit (104).Type: GrantFiled: May 13, 2014Date of Patent: December 29, 2015Assignee: UNWIRED PLANET, LLCInventors: Stefan Mueller-Weinfurtner, Steffen Reinhardt, Udo Wachsmann
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Patent number: 9219834Abstract: An image forming apparatus that prompts, when instructed by a user to transmit a repair request, the user to perform repair work before it actually transmits the repair request to an external apparatus. A console section receives an instruction for transmitting a repair request for repairing the image forming apparatus to the external apparatus from a user. Upon receipt of the instruction, the console section displays an operation screen indicating a repair operation that the user should perform. When the display unit displays the operation screen and the console section receives from the user the instruction for transmitting the repair request to the external apparatus again, a CPU causes the repair request to be transmitted to the external apparatus.Type: GrantFiled: December 2, 2014Date of Patent: December 22, 2015Assignee: CANON KABUSHIKI KAISHAInventor: Takeshi Kogure
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Patent number: 9203559Abstract: In some implementations, a method of wireless communications between a wireless communications network and wireless user equipment includes receiving, using a primary Time Division Duplex (TDD) configuration, data on a primary component carrier in a first frequency band. Using a secondary TDD configuration, data on a secondary component carrier is received in a second frequency band different from the first frequency band. A Hybrid Automatic Repeat Request (HARQ) for data received on the secondary component carrier is transmitted using a supplemental TDD configuration. A transmission or retransmission on the secondary component carrier uses a supplemental TDD configuration as well. The supplemental TDD configuration is different from the secondary TDD configuration. Furthermore, an uplink supplemental configuration may be different from a downlink supplemental configuration.Type: GrantFiled: January 27, 2012Date of Patent: December 1, 2015Assignee: BlackBerry LimitedInventors: Yiping Wang, Jun Li, Youn Hyoung Heo
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Patent number: 9203560Abstract: Methods and apparatus for delayed block acknowledgments in a WLAN. In an aspect, a method is provided for communication with one or more nodes. The method includes transmitting to the one or more nodes a block comprising data and a first bit indicating no acknowledgements for the data are to be transmitted from the one or more nodes. The method also includes determining whether a selected time location within a transmit time duration has been reached, wherein if the selected time location has been reached, transmitting to the one or more nodes a second bit indicating that the one or more nodes are to transmit one or more acknowledgements, respectively, for the data. The method also includes receiving at least one acknowledgment for the data within a remaining portion of the transmit time duration.Type: GrantFiled: November 25, 2008Date of Patent: December 1, 2015Assignee: QUALCOMM IncorporatedInventors: Vinay Sridhara, Sanjiv Nanda, Srinivas Kandala
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Patent number: 9197377Abstract: Methods described herein are for wireless communication systems. One aspect of the invention is directed to a method for a HARQ process, in which the HARQ process includes a first transmission of an encoder packet and at least one retransmission. The method involves allocating a transmission resource for each respective transmission. The method involves transmitting control information from a base station to a mobile station for each respective transmission. The control information includes information to uniquely identify the HARQ process and an identification of one of a time resource, a frequency resource and a time and frequency resource that is allocated for the transmission. In some embodiments of the invention, specific control information is signalled from a base station to a mobile station to enable RAS-HARQ operation. In some embodiments of the invention, retransmission signaling in included as part of regular unicast signaling used for both first transmission and retransmissions.Type: GrantFiled: September 29, 2014Date of Patent: November 24, 2015Assignee: Apple Inc.Inventors: Mo-Han Fong, Sophie Vrzic, Robert Novak, Jun Yuan, Dong-Sheng Yu
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Patent number: 9191175Abstract: As an embodiment of the present invention, a method for supporting a HARQ operation of M2M devices using a HARQ Channel Identifier (ACID) in a wireless access system includes transmitting, at a base station, a second UL A-MAP IE to M2M devices sharing a station identifier (STID) in a subframe in which a second M2M device is to retransmit a UL burst, wherein the second UL A-MAP IE includes resource allocation information for allocating a resource region to a first M2M device and includes a second ACID, receiving the UL burst retransmitted using a first ACID from the second M2M device in the subframe, and receiving a new UL burst transmitted using the second ACID from the first M2M device in the subframe, wherein the first and second M2M devices share the STID, and the first and second ACIDs are different from each other.Type: GrantFiled: July 13, 2012Date of Patent: November 17, 2015Assignee: LG ELECTRONICS INC.Inventors: Jeongki Kim, Jinsam Kwak, Youngsoo Yuk
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Patent number: 9178790Abstract: A first node that transmits TCP packets to and receives TCP packets from a second node splits a target TCP packet throughput across multiple consecutive time slots, each slot having a target throughput value. If a current slot's achieved throughput value does not match the current slot's target throughput value, the target throughput value for the current slot and/or a subsequent slot is adjusted. Transmit throughput from the first node to the second node is controlled by transmitting TCP packets from the first node to the second node according to a target throughput value for the current slot. Receive throughput from the second node to the first node is controlled by dynamically calculating an advertised receive window size according to a target throughput value for the current slot and communicating the advertised receive window size to the second node.Type: GrantFiled: August 6, 2012Date of Patent: November 3, 2015Assignee: IxiaInventors: Partha Majumdar, Maksim Pyatkovskiy
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Patent number: 9179360Abstract: A wireless communication system optimizes media services over a wireless network. The wireless communication system is HARQ enabled. The wireless communication system receives the number of HARQ retransmissions, communication status data, configuration data, and flow identifications (IDs) for media flows that use FEC packets. The wireless communication system determines if the communication status data exceeds a system status threshold. If the communication status data exceeds the system status threshold, then the wireless communication system adjusts the number of HARQ retransmissions.Type: GrantFiled: June 20, 2013Date of Patent: November 3, 2015Assignee: Sprint Communications Company L.P.Inventor: Daniel A. Vivanco
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Patent number: 9172512Abstract: System and method embodiments are provided to support network communications with groups of UEs. The embodiments include a two-level group-based hybrid-automatic repeat request (HARQ) mechanism and acknowledgement (ACK)/negative ACK (NACK) feedback. An embodiment method includes receiving, at a UE within a virtual multi-point (ViMP) comprising UEs, a data packet for a target UE (TUE) that is broadcasted from a base station (BS) to the ViMP node, decode the data packet, and upon successfully decoding the data packet, broadcasting the data packet to the UEs within the ViMP node until a timer pre-established by the BS expires or an ACK message is received from the TUE or the ViMP node. In an embodiment, broadcasted data received in the ViMP node is re-broadcasted upon receiving a negative acknowledgment (NACK) message from the TUE, a beacon UE, or any of the UEs within the ViMP node.Type: GrantFiled: March 14, 2013Date of Patent: October 27, 2015Assignee: Futurewei Technologies, Inc.Inventors: Amine Maaref, Mohammadhadi Baligh, Jianglei Ma
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Patent number: 9172520Abstract: A terminal (e.g., mobile communication device, UE) and a method are described herein for allocating a soft buffer after interacting with a network node (e.g., base station, eNB). In addition, a network node (e.g., base station, eNB) and a method are described herein that facilitates robust operations during a reconfiguration period while a terminal allocates a soft buffer located therein.Type: GrantFiled: July 1, 2014Date of Patent: October 27, 2015Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Jung-Fu Cheng, Dirk Gerstenberger, Daniel Larsson, Christian Skärby, Robert Baldemair
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Patent number: 9172429Abstract: A broadband powerline communication system makes use of knowledge of the spectrum characteristics of a local radio environment in order to improve system performance. A determination is made of the spectrum characteristics of a radio environment in the vicinity of the broadband powerline communication system that is transmitting data on modulated carrier frequencies. In order to avoid interference, certain ones of the carrier frequencies otherwise used by the broadband powerline communication system may be selectively masked based on the determination. The spectrum characteristics may be determined 1) in advance and used to compile a configuration database comprising frequency masking parameters; 2) by monitoring the local radio environment using the transmitter/receiver nodes of the system; or 3) based upon receipt of an indication from a conflicting user that the user is experiencing interference. Various combinations of these spectrum characteristic determination techniques may also be used.Type: GrantFiled: March 7, 2005Date of Patent: October 27, 2015Assignee: AT&T Intellectual Property II, L.P.Inventors: Irwin Gerszberg, Paul Shala Henry, Larrie G. Sutliff
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Patent number: 9166761Abstract: The present invention relates to a method and apparatus for transmitting a bandwidth request (BR) header in a wireless communication system. User equipment transmits a standalone BR header to a base station through a first uplink (UL) resource allocated by a BR-acknowledgement (ACK) A-MAP information element (IE), receives from the base station a hybrid automatic repeat request (HARQ)-non-acknowledgement (NACK) which indicates the base station has not successfully received the standalone BR header, receives a CDMA allocation A-MAP IE from the base station, and retransmits the standalone BR header through a second UL resource allocated by the CDMA allocation A-MAP IE.Type: GrantFiled: October 23, 2012Date of Patent: October 20, 2015Assignee: LG Electronics Inc.Inventors: Hee Jeong Cho, Young Soo Yuk
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Patent number: 9161272Abstract: A lossless call may be established over a wireless radio network by determining, at a target subscriber device during a received call, that one or more identified media items in a stream of media items of the call being received over a first radio channel was not successfully received, and responsively: continuing to receive first subsequent media items of the call and buffering, instead of rendering at the target subscriber device, the first subsequent media items, requesting the identified media items, receiving by the target subscriber device via an established second radio channel, different from the first radio channel, the identified media items, re-ordering the identified media items chronologically with respect to the buffered first subsequent media items to create the re-ordered subsequent media stream, and rendering, by the target subscriber device, the re-ordered subsequent media stream at a first increased relative rate.Type: GrantFiled: October 24, 2013Date of Patent: October 13, 2015Assignee: MOTOROLA SOLUTIONS, INC.Inventors: Gabi Ofir, David Bar-On, Uri Cohen