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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
Inventor: ISLAM MUHAMMAD NAZMUL , SUBRAMANIAN SUNDAR , CEZANNE JUERGEN , LI JUNYI
IPC: H04W56/00
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.
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52.
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
Inventor: SADIQ BILAL , CEZANNE JUERGEN , SUBRAMANIAN SUNDAR , ISLAM MUHAMMAD NAZMUL , ABEDINI NAVID , LUO TAO
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.
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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
Inventor: ISLAM MUHAMMAD NAZMUL , LUO TAO , SADIQ BILAL , CEZANNE JUERGEN , SUBRAMANIAN SUNDAR , LI JUNYI
IPC: H04B7/0417 , H04B7/06
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.
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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
Inventor: ISLAM MUHAMMAD NAZMUL , LUO TAO , CEZANNE JUERGEN , MUKKAVILLI KRISHNA KIRAN , SUBRAMANIAN SUNDAR , LI JUNYI
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.
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公开(公告)号:AU2017249060A1
公开(公告)日:2018-09-27
申请号:AU2017249060
申请日:2017-03-31
Applicant: QUALCOMM INC
Inventor: ISLAM MUHAMMAD NAZMUL , LUO TAO , CEZANNE JUERGEN , SUBRAMANIAN SUNDAR , SAMPATH ASHWIN , SADIQ BILAL , LI JUNYI
IPC: H04B7/0417 , H04B7/06 , H04B7/08
Abstract: A first apparatus may transmit, to a user equipment (UE), on a control channel, one or more indications of one or more beam indexes corresponding to one or more beams. The first apparatus may transmit, to the UE, one or more reference signals through the one or more beams corresponding to the one or more beam indexes. The reference signals may be used by the UE to select a best subarray and/or receive combiner for communication with the first apparatus.
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公开(公告)号:CA3049030A1
公开(公告)日:2018-08-16
申请号:CA3049030
申请日:2018-02-13
Applicant: QUALCOMM INC
Inventor: ISLAM MUHAMMAD NAZMUL , SUBRAMANIAN SUNDAR , SADIQ BILAL , CEZANNE JUERGEN , SAMPATH ASHWIN , NAGARAJA SUMEETH
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for limiting UE capability information reported in a network. For example, a method of wireless communications by a first base station may include transmitting a first set of initial access signals in different directions, receiving a second set of one or more signals from a user equipment (UE) in response to the first set of initial access signals, and initiating transmission of, or conveying configuration of, a third set of reference signals with an indication of their corresponding directions, based on reception of the second set of signals.
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57.
公开(公告)号:CA3044554A1
公开(公告)日:2018-07-12
申请号:CA3044554
申请日:2018-01-04
Applicant: QUALCOMM INC
Inventor: ISLAM MUHAMMAD NAZMUL , LI JUNYI , CHALLA RAGHU
IPC: H04W74/00
Abstract: In one aspect, a method, a computer-readable medium, and an apparatus for wireless communication are provided. The apparatus may be a base station. The apparatus may determine a duration of an uplink message that is to be sent from a UE. The apparatus may inform the UE regarding the duration of the uplink message through a random-access response message.
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58.
公开(公告)号:CA3042160A1
公开(公告)日:2018-06-21
申请号:CA3042160
申请日:2017-11-09
Applicant: QUALCOMM INC
Inventor: ISLAM MUHAMMAD NAZMUL , NAGARAJA SUMEETH , LUO TAO , SADIQ BILAL , LI JUNYI , SUBRAMANIAN SUNDAR
Abstract: Methods, systems, and devices for wireless communication are described that provide for selecting different uplink transmission parameters for transmission or retransmission of a random access message. A user equipment (UE) may retransmit a random access message to a base station during a random access procedure if an initial transmission of the random access message was unsuccessfully received by the base station. The UE may select a different transmission beam, uplink resource, or transmission power for retransmission of the random access message. The selection may be based on path loss associated with synchronization signals or previous transmissions. The selection may also be based on a maximum number of retransmissions.
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公开(公告)号:CA3021224A1
公开(公告)日:2017-12-07
申请号:CA3021224
申请日:2017-05-31
Applicant: QUALCOMM INC
Inventor: ISLAM MUHAMMAD NAZMUL , ABEDINI NAVID , LUO TAO , SUBRAMANIAN SUNDAR , CEZANNE JUERGEN , SAMPATH ASHWIN , GOROKHOV ALEXEI YURIEVITCH , LI JUNYI , SADIQ BILAL
IPC: H04W56/00
Abstract: The apparatus may be a user equipment (UE). The apparatus receives a transmission of at least one of a plurality of first synchronization signals. The apparatus receives at least one repeat transmission of the at least one of the plurality of first synchronization signals. In an aspect, the transmission and the at least one repeat transmission are received in a same synchronization signal block.
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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
Inventor: ISLAM MUHAMMAD NAZMUL , SADIQ BILAL , LUO TAO , SUBRAMANIAN SUNDAR , LI JUNYI
IPC: H04B7/0417 , H04B7/0452 , H04B7/06 , H04W74/08
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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