INITIALIZATION AND USE OF DEMODULATION REFERENCE SIGNAL

    公开(公告)号:US20200374170A1

    公开(公告)日:2020-11-26

    申请号:US16947652

    申请日:2020-08-11

    Abstract: Methods, systems, and devices are disclosed for digital wireless communication, and more specifically, for initializing and using demodulation reference signals. In one exemplary aspect, a method of wireless communication performed by a communication node includes generating a first portion of an initial value of a demodulation reference signal (DMRS) based, at least in part, on combining a time index and at least a portion of an ID index. The method also includes generating a second portion of the initial value of the DMRS based, at least in part, on the ID index, and generating the initial value of the DMRS by combining at least the first and second portions. The method further includes transmitting or receiving the DMRS.

    Message Transmitting or Receiving Methods and Devices, Base Station, and Terminal

    公开(公告)号:US20170339718A1

    公开(公告)日:2017-11-23

    申请号:US15521479

    申请日:2015-07-30

    CPC classification number: H04W74/004 H04B1/7073 H04W74/00 H04W74/04 H04W74/08

    Abstract: Provided are message transmitting or receiving methods and devices, a base station, and a terminal. Uplink access signals are divided into a first pre-determined number of uplink access signal groups. An uplink access signal, which is transmitted in an uplink access beam form based on one or more uplink access signal groups, is received from a second communication node. An uplink access signal group to which the uplink access signal pertains is determined. One or more uplink access signals contained in the uplink access signal group are transmitted under at least one of the following restriction conditions: a restricted sequence transmitting order, a restricted transmitting occasion, and a restricted transmitting frequency domain position. An uplink access response message is transmitted to the second communication node over an uplink access response resource corresponding to the determined uplink access signal group.

    TIMING INFORMATION CONFIGURATION METHOD, DEVICE AND SYSTEM, AND STORAGE MEDIUM

    公开(公告)号:US20220070810A1

    公开(公告)日:2022-03-03

    申请号:US17413482

    申请日:2019-12-11

    Abstract: Provided are a timing information configuration method, apparatus and system and a storage medium. The timing information configuration method includes that a first node predefines or configures timing information of a second node. The timing information includes at least one of: a timing mode, a downlink transmission timing alignment mode, a timing advance (TA) configuration mode, a TA value, an offset of a TA value, a number of orthogonal frequency division multiplexing (OFDM) symbols that an uplink transmission timing is advanced or delayed relative to a downlink transmission timing for alignment, or a number of OFDM symbols that an uplink reception timing is advanced or delayed relative to a downlink reception timing for alignment. The timing information configuration method includes that a second node determines timing information of the second node in a manner of predefinition or in a manner of being configured.

    INFORMATION TRANSMISSION METHOD AND DEVICE

    公开(公告)号:US20210045098A1

    公开(公告)日:2021-02-11

    申请号:US16965133

    申请日:2018-11-06

    Abstract: Provided are an information transmission method and device. The method includes that a base station configures, in multiplexing downlink control information (DCI), instruction information for instructing a user equipment (UE) that includes different types to act; and the base station sends the multiplexing DCI to the UE. The multiplexing DCI is DCI that multiplexes DCI of a physical downlink shared channel (PDSCH), and the multiplexing DCI is the DCI of the PDSCH in response to being scrambled by a preset radio network temporary identifier (RNTI) and is paging DCI in response to being scrambled by a paging radio network temporary identifier (P-RNTI), where the preset RNTI is an RNTI excluding the P-RNTI. Instruction information is set in multiplexing DCI to instruct a UE that includes different types to act to switch a paging mechanism.

    METHOD AND DEVICE FOR NOTIFYING AND DETERMINING DMRS PORTS OR MAPPING RELATIONSHIP

    公开(公告)号:US20190013910A1

    公开(公告)日:2019-01-10

    申请号:US15752477

    申请日:2016-08-01

    Abstract: A method and device for notifying and determining DMRS ports or a mapping relationship is provided. The method includes a sending end sending indication information to a receiving end in a TM, and the sending end indicates allocation information about DMRS ports or a mapping relationship according to the indication information, and the indication information includes at least one of the following: RRC signaling, physical layer NDI bit, and DMRS pilot scrambler configuration information nscid. A problem of influence on a performance of a MU-MIMO system caused by lower channel estimation performance due to limited orthogonal DMRS ports for MU-MIMO transmission and high MUI after increment of a total number of MU-MIMO transmission layers is solved.

    DATA PROCESSING METHOD AND APPARATUS
    18.
    发明申请

    公开(公告)号:US20180316406A1

    公开(公告)日:2018-11-01

    申请号:US15774088

    申请日:2016-08-17

    Abstract: Disclosed are a data processing method and apparatus. The method includes: a first receiving end determines a range of a data demodulation reference signal (DMRS) ports occupied by one or more second receiving ends by using at least one of the following information: a usage state of a joint encoding table corresponding to a DMRS port group, the number of layers corresponding to a physical downlink shared channel (PDSCH) of the first receiving end, and the number of codewords corresponding to the PDSCH of the first receiving end; and the first receiving end processes data according to the range of the DMRS ports occupied by one or more second receiving ends.

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