DATA TRANSMISSION METHOD AND DEVICE, USER EQUIPMENT, BASE STATION, COMMUNICATION SYSTEM AND STORAGE MEDIUM

    公开(公告)号:US20220104226A1

    公开(公告)日:2022-03-31

    申请号:US17472283

    申请日:2021-09-10

    Abstract: Provided are a data transmission method and apparatus, a user equipment, a base station, a communication system and a storage medium. The method includes abiding by a mapping relationship between the resource configuration of a physical uplink shared channel (PUSCH) resource and preamble sequence configuration information according to the resource configuration of the PUSCH resource and determining preamble sequence configuration information corresponding to the resource configuration of the PUSCH resource; mapping a preamble sequence onto a physical random access channel (PRACH) resource according to the preamble sequence configuration information; and sending a message containing the PRACH resource and the PUSCH resource.

    METHODS AND APPARATUSES FOR TRANSMITTING AND RECEIVING SYNCHRONIZATION SIGNAL, AND TRANSMISSION SYSTEM

    公开(公告)号:US20210385770A1

    公开(公告)日:2021-12-09

    申请号:US17445637

    申请日:2021-08-23

    Abstract: Embodiments of the disclosure provide methods and apparatuses for transmitting and receiving a synchronization signal, and a transmission system. A method includes that, a base station determines one or more sets of system parameters, each set of the system parameters including at least one of the following information of a carrier: frequency information, or a frame structure parameter; the base station constructs a synchronization signal of a predetermined structure according to the system parameters; and the base station transmits the synchronization signal to the terminal; the one or more sets of system parameters corresponding to the same predetermined structure. With the embodiments of the disclosure, the problem of excessive complexity in detection of the synchronization signal in the related technology is solved.

    POWER CONTROL FOR RANDOM ACCESS PROTOCOLS

    公开(公告)号:US20210378024A1

    公开(公告)日:2021-12-02

    申请号:US17403386

    申请日:2021-08-16

    Abstract: Methods, systems, and devices for power control for random access protocols in mobile communication technology are described. An exemplary method for wireless communication includes broadcasting, by a network node serving a cell, an indication of a transmit power level that is specific to the cell, wherein the indication is for use by a wireless device operating in the cell for a two-step random access procedure. Another exemplary method for wireless communication includes receiving, by a wireless device operating in a cell served by a network node, an indication of a transmit power level that is specific to the cell for use in a two-step random access procedure, and transmitting, at the transmit power level, a first message of the two-step random access procedure.

    Signal sending method and apparatus, and resource notification method and apparatus

    公开(公告)号:US10863554B2

    公开(公告)日:2020-12-08

    申请号:US16127220

    申请日:2018-09-10

    Abstract: Provided are a signal transmitting method and apparatus, and a resource notification method and apparatus. The signal transmitting method includes: transmitting one or more random access signals. A tail end of the one or more random access signals is aligned with a t−Δt position of a signal transmission region in transmission resources of the one or more random access signals, t is a tail end time point of the signal transmission region and Δt is an advance. Alternatively, a transmitting start time point of the one or more random access signals is a result obtained by subtracting the length of the one or more random access signals and the advance from the tail end time point of the signal transmission region in the transmission resources.

    Scheduling configuration method and device, and storage medium

    公开(公告)号:US10440734B2

    公开(公告)日:2019-10-08

    申请号:US15025180

    申请日:2014-05-12

    Abstract: The present disclosure discloses a scheduling configuration method, which includes that: a centralized control unit configures coordination parameters of different nodes, and distributed scheduling units in each node schedule user resources of the local nodes. The present disclosure also discloses a scheduling configuration device, which includes: a configuration unit and scheduling units, wherein the configuration unit is arranged in a centralized control unit and configured to configure coordination parameters of different nodes; and the scheduling units are arranged in each node and configured to schedule user resources of the local nodes. By the technical solutions of the present disclosure, the problem of time delay, caused by backhaul, of a non-coordination user in a centralized scheduling manner is solved; and coordination configuration is performed on parameters which are relatively semi-static or change more slowly to eliminate influence on user scheduling flexibility under the condition of implementing system transmission.

    Transmission method of demodulation reference signal, base station and user equipment

    公开(公告)号:US09866417B2

    公开(公告)日:2018-01-09

    申请号:US14769167

    申请日:2013-12-31

    CPC classification number: H04L27/2607 H04L5/0014 H04L5/0051 H04L5/22

    Abstract: Disclosed are a method for transmitting a demodulation reference signal (DMRS), a base station and a user equipment, related to the LTE Advanced system. The method for transmitting the DMRS disclosed in the present document includes: a base station transmitting a plurality of demodulation reference signal (DMRS) ports through frequency division multiplexing (FDM) and/or code division multiplexing (CDM) and/or time division multiplexing (TDM). The embodiment of the present invention further discloses a base station and a user equipment. The technical scheme of the present application greatly boosts the DMRS demodulation performance, especially taking into account its use in the 256QAM modulation method in future, balances interpolation performance of various PRB Pairs in one sub-frame, and it avoids a collision between a DMRS and a RCRS, a PSS/SSS as well as a CSI-RS.

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