-
41.
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.
-
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.
-
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.
-
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.
-
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.
-
公开(公告)号:CA3046951A1
公开(公告)日:2018-08-09
申请号:CA3046951
申请日:2017-11-30
Applicant: QUALCOMM INC
Inventor: CEZANNE JUERGEN , RAGHAVAN VASANTHAN , SADIQ BILAL , SUBRAMANIAN SUNDAR , SAMPATH ASHWIN , LI JUNYI
IPC: H04L5/00
Abstract: Techniques are described for wireless communication. A method of wireless communication at a first wireless device includes identifying a template mapping of a plurality of ports to a first plurality of frequency subcarriers and a first plurality of time periods of a template time-frequency resource grid; mapping a plurality of resource elements of an orthogonal frequency-division multiplexing (OFDM) time-frequency resource grid to the plurality of ports based at least in part on the template mapping; receiving a reference signal from a second wireless device, on a subset of the plurality of ports, based at least in part on the mapping; and decoding the reference signal from a subset of the plurality of resource elements based at least in part on the mapping. In some cases, each port of the plurality of ports is associated with a corresponding radio frequency (RF) chain.
-
47.
公开(公告)号:CA3046031A1
公开(公告)日:2018-07-19
申请号:CA3046031
申请日:2017-12-20
Applicant: QUALCOMM INC
Inventor: BAI TIANYANG , CEZANNE JUERGEN , SUBRAMANIAN SUNDAR , LI JUNYI
Abstract: An apparatus for wireless communication selects a recommendation for the need. The apparatus selects the resource to transmit a phase tracking reference signal based on a condition of a communication system. The apparatus performs at least one of transmitting an indication of the selected recommendation for the resource to a second wireless communication device or transmitting at least one of information or a reference signal to the second device to assist the second device in determining the resource. In an aspect, the selection may be made based on receiving a request for a recommendation from the second wireless communication device or the transmitting the at least one of the information or the reference signal are based on a request received.
-
公开(公告)号:CA3046384A1
公开(公告)日:2018-07-12
申请号:CA3046384
申请日:2017-12-27
Applicant: QUALCOMM INC
Inventor: CEZANNE JUERGEN , RAGHAVAN VASANTHAN , SUBRAMANIAN SUNDAR , SAMPATH ASHWIN , LI JUNYI
IPC: H04B7/0404 , H04B7/06
Abstract: Techniques are described for wireless communication. A method for wireless communication at a user equipment (UE) may include receiving a beam training sequence transmitted by a network access device on a plurality of transmit beams, identifying, based at least in part on the received beam training sequence, one or more sets of multiple beams that are compatible with at least one configuration for routing signals between antenna subarrays of the UE and transceiver units (TXRUs) of the UE, and transmitting, to the network access device, an indication of the identified one or more sets of multiple beams. A method for wireless communication at the network device may include transmitting the beam training sequence, receiving the indication, and selecting, based at least in part on the received indication, a set of multiple beams of the one or more sets of multiple beams to use to communicate with the UEs.
-
49.
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.
-
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.
-
-
-
-
-
-
-
-
-