COMMUNICATION OF UPLINK CONTROL INFORMATION

    公开(公告)号:SG11201806066QA

    公开(公告)日:2018-09-27

    申请号:SG11201806066Q

    申请日:2017-02-14

    Applicant: QUALCOMM INC

    Abstract: Various aspects of the disclosure relate to communicating random access information and uplink control information. In some aspects, a user equipment (UE) or other suitable apparatus transmits physical uplink control channel (PUCCH) information concurrently with random access channel (RACH) information transmitted by another UE or other apparatus. For example, the RACH access information and the PUCCH information may be frequency division multiplexed orthogonal tones. The disclosure relates in some aspects to using downlink-uplink (DL-UL) channel reciprocity to determine symbol and/or tone locations. For example, a base station or other suitable apparatus may initially sweep across different directions in different time slots to transmit signals during a synchronization sub-frame. A UE or other suitable apparatus can then find an appropriate RACH symbol from its best synchronization beam index and transmit PUCCH information in those symbols.

    TECHNIQUES FOR COMMUNICATING SYNCHRONIZATION SIGNAL BLOCK INDEX IN A PHYSICAL BROADCAST CHANNEL PAYLOAD

    公开(公告)号:CA3054340A1

    公开(公告)日:2018-09-27

    申请号:CA3054340

    申请日:2018-03-16

    Applicant: QUALCOMM INC

    Abstract: A user equipment (UE) receives a first synchronization signal (SS) block including a first codeword and a second SS block including a second codeword. Each codeword is based at least in part on a linear encoding of a physical broadcast channel (PBCH) payload. The PBCH payloads include different timing indicators. The SS blocks are received at different times separated by a time increment. The UE determines, based at least in part on the time increment, one or more hypotheses of combined decoding metrics for the first codeword and the second codeword; decodes the first codeword based on each of at least one hypothesis in the one or more hypotheses. The at least one hypothesis includes a correct hypothesis; the UE determines the first codeword based at least in part on an error detection procedure such as CRC verification performed when decoding the first codeword based at least in part on the correct hypothesis.

    Beam reference signal based narrowband channel measurement and CQI reporting

    公开(公告)号:AU2017252175A1

    公开(公告)日:2018-09-27

    申请号:AU2017252175

    申请日:2017-03-27

    Applicant: QUALCOMM INC

    Abstract: When beamforming (e.g., via a millimeter wave system (mmW)) is used for wireless communication, a base station may transmit beams that are directed to certain directions. Due to the directional nature of the beams in the mmW system, an approach to determine a beam that provides a desirable gain is studied. The apparatus may be a user equipment (UE). The apparatus receives, from a base station, a plurality of signals through a plurality of beams of the base station, each of the plurality of beams corresponding to a respective antenna port of a plurality of antenna ports of the base station. The apparatus receives from the base station a number of beams whose information should be fed back to the base station. The apparatus performs channel estimation for each beam of the plurality of beams from the plurality of antenna ports based on the plurality of signals.

    Dynamically convey information of demodulation reference signal and phase noise compensation reference signal

    公开(公告)号:AU2017252163A1

    公开(公告)日:2018-09-27

    申请号:AU2017252163

    申请日:2017-03-21

    Applicant: QUALCOMM INC

    Abstract: DM-RS symbols may be inserted in the beginning of a subframe, or in two parts of the subframe. In one aspect, a method, a computer-readable medium, and an apparatus for dynamically conveying DM-RS information are provided. The apparatus may be a base station. The apparatus may determine the number of DM-RS symbols and/or the locations within a subframe for transmission of the DM-RS symbols. The apparatus may transmit the number of the DM-RS symbols and/or the locations within the subframe for transmission of the DM-RS symbols to a UE. In another aspect, a UE may receive the number of DM-RS symbols and/or the locations within a subframe for transmission of the DM-RS symbols from a base station. The UE may decode the DM-RS symbols from the subframe based on the number of the DM-RS symbols and/or the locations within a subframe for transmission of the DM-RS symbols.

    SYSTEM AND METHOD FOR BEAM SWITCHING AND REPORTING

    公开(公告)号:CA3020730A1

    公开(公告)日:2017-11-30

    申请号:CA3020730

    申请日:2017-04-17

    Applicant: QUALCOMM INC

    Abstract: A UE may receive, from a base station, a message requesting BSI. The UE may determine a number N of BSI reports to send to the base station, and each BSI report may indicate a beam index corresponding to a beam and a received power associated with the beam. The UE may send, to the base station, N BSI reports based on the message requesting BSI. The UE may receive, from the base station, a set of signals through a set of beams, and determine the received power for each signal of the set of signals received through each beam of the set of beams, each received power may be associated with a beam of the set of beams.

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