-
公开(公告)号：AU2016416176A1
公开(公告)日：2018-12-13
申请号：AU2016416176
申请日：2016-07-27
Applicant: QUALCOMM INC
Inventor： XU CHANGLONG , LI JIAN , WEI CHAO , HOU JILEI
IPC: H04L1/18
Abstract: Certain aspects of the present disclosure relate to techniques and apparatus for design of hybrid automatic repeat request (HARQ) feedback bits. The method generally includes obtaining a payload to be transmitted, partitioning the payload into a plurality of blocks, and partitioning each block of the plurality of blocks into a plurality of sections. The method also includes deriving redundancy check information for each section of the plurality of sections, and generating a plurality of codewords, each comprising a block of the plurality of blocks and the redundancy check information for each section of the block, wherein a location of each of the sections in the codewords is determined based on an error rate corresponding to each of the sections.
-
公开(公告)号：CA3058689A1
公开(公告)日：2018-11-15
申请号：CA3058689
申请日：2018-04-06
Applicant: QUALCOMM INC
Inventor： XU CHANGLONG , WEI CHAO , JIANG JING , HOU JILEI , YANG YANG , SARKIS GABI
IPC: H04L1/00
Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for rate-matching a stream of bits encoded using polar codes. An exemplary method generally includes determining a mother code size (N) for transmitting an encoded stream of bits based, at least in part, on a minimum supported code rate for transmitting the encoded stream of bits (Rmin), a control information size of the encoded stream of bits (K), a number of coded bits for transmission (E), and a maximum mother code size (Nmax), encoding a stream of bits using a polar code of size (N, K) and storing the encoded stream of bits in a circular buffer, and performing rate-matching on the stored encoded stream of bits based, at least in part, on a comparison among the mother code size (N), the control information size of the encoded stream of bits (K), and the number of coded bits for transmission (E).
-
公开(公告)号：HUE038470T2
公开(公告)日：2018-10-29
申请号：HUE11703556
申请日：2011-02-04
Applicant: QUALCOMM INC
Inventor： JIANG YIBO , SAMBHWANI SHARAD DEEPAK , HOU JILEI , WANG JIBING
-
公开(公告)号：AU2017262264A1
公开(公告)日：2018-10-25
申请号：AU2017262264
申请日：2017-05-10
Applicant: QUALCOMM INC
Abstract: A hybrid class B channel state information (CSI) reference signal (CSI-RS) scheme is discussed which configures one cell-common beamformed CSI-RS resource for beam tracking and another UE-specific beamformed CSI-RS resource for CSI feedback. The cell-common beamformed CSI-RS resource may be transmitted at a longer periodicity and shared by user equipments (UEs) in the cell. The beamforming may be cycled over a set of predefined weights transparent to UE. The UE-specific beamformed CSI-RS may be transmitted at a shorter periodicity and can be activated dynamically to allow resource sharing among multiple UEs. The UEs will report a CSI for the cell-common beamformed CSI-RS resource which provides a quality indicator for the associated cell-common beam and is utilized by the base station to determine the precoding weight for the UE-specific beamformed CSI-RS resource. Both resources can be configured with different parameter sets, such as number of ports, codebook type, and CSI reporting parameters.
-
公开(公告)号：CA3046867A1
公开(公告)日：2018-08-02
申请号：CA3046867
申请日：2018-01-24
Applicant: QUALCOMM INC
Inventor： WEI CHAO , XU CHANGLONG , HOU JILEI , LI JIAN
IPC: H04L1/00
Abstract: Methods, systems, and devices for wireless communication are described. In order to exchange data over a given wireless communication network, a wireless device may first perform a cell acquisition procedure (e.g., to determine cell-specific information such as timing and frequency offsets, bandwidth, control channel formatting, etc. ). In some systems, aspects of the timing information may be conveyed with scrambling codes applied to a master information block (MIB). Physical broadcast channel (PBCH) payloads, including MIB transmissions, may be jointly encoded with synchronization signal indices. Bursts of MIB transmissions may thus be decoded without blind decoding while maintaining error protection and low latency that may be necessary to obtain critical system information within the MIB.
-
Patent Agency Ranking
公开(公告)号：CA3046236A1
公开(公告)日：2018-07-12
申请号：CA3046236
申请日：2018-01-08
Applicant: QUALCOMM INC , WEI CHAO
Inventor： XU CHANGLONG , WEI CHAO , JIANG JING , WU GAOJIN , SANKAR HARI , HOU JILEI
IPC: H04N19/00
Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for rate-matching control channels using polar codes. An exemplary method generally includes encoding a stream of bits using a polar code, determining a size of a circular buffer for storing the encoded stream of bits based, at least in part, on a minimum supported code rate and a control information size, and performing rate-matching on stored encoded stream of bits based, at least in part, on a mother code size, N, and a number of coded bits for transmission, E.
-
公开(公告)号：CA3042955A1
公开(公告)日：2018-06-21
申请号：CA3042955
申请日：2017-06-14
Applicant: QUALCOMM INC
Inventor： XU CHANGLONG , SORIAGA JOSEPH BINAMIRA , HOU JILEI
Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide techniques for polar coding control information together with combined cyclic redundancy check (CRC) information. The combined CRC information may include a number of CRC bits selected to jointly decode and verify the control information to reduce the CRC overhead.
-
公开(公告)号：CA3015251A1
公开(公告)日：2017-09-28
申请号：CA3015251
申请日：2017-03-10
Applicant: QUALCOMM INC
Inventor： WEI CHAO , CHEN BO , WU LIANGMING , HOU JILEI
IPC: H04W72/04
Abstract: Enhanced hybrid channel state information (CSI) reference signal (CSI-RS) for full dimension multiple input, multiple output (FD-MIMO) is discussed in which a base station configures a first CSI-RS resource for non-precoded CSI-RS and a second CSI-RS resource for beamformed CSI-RS. The first and second CSI-RS resources are associated with the same CSI process in a hybrid CSI-RS operation. The UE provides a first CSI report including a first rank and precoding matrix indicator (PMI) based on measurement of the non-precoded CSI-RS. The base station may use this first CSI report for the beamforming of the beamformed CSI-RS. The UE further provides a second CSI report including a second rank, second PMI, and CQI based on measurement of the beamformed CSI-RS. Additional aspects may provide for a base station to aggregate multiple two-port CSI-RS resource configurations into a single multiport CSI-RS resource configuration that may be dynamically shared between different UEs.
-
公开(公告)号：CA3009570A1
公开(公告)日：2017-08-03
申请号：CA3009570
申请日：2016-08-17
Applicant: QUALCOMM INC
Inventor： XU CHANGLONG , LI JIAN , HOU JILEI , WANG NENG
IPC: H03M13/13
Abstract: Polar codes may be generated with a variable block length utilizing puncturing. Some puncturing schemes consider punctured bits as unknown bits, and set the log likelihood ratio (LLR) for those bits to zero; while other puncturing schemes consider punctured bits as known bits, and set the LLR for those bits to infinity. Each of these puncturing schemes has been observed to provide benefits over the other under different circumstances, especially corresponding to different coding rates or different signal to noise ratio (SNR). According to aspects of the present disclosure, both puncturing schemes are compared, and the puncturing scheme resulting in the better performance is utilized for transmission.
-
200.发明专利
公开(公告)号：RS55409B1
公开(公告)日：2017-04-28
申请号：RSP20161127
申请日：2012-02-17
Applicant: QUALCOMM INC
-
-
-
-
-
-
-
-
-
Search Results
241
records
(took 0.027 seconds)
