Signal detection method and signal detection device

    公开(公告)号:US20180083802A1

    公开(公告)日:2018-03-22

    申请号:US15561357

    申请日:2016-01-27

    IPC分类号: H04L25/02 H04B7/04 H04L5/00

    摘要: A signal detection method and a signal detection device are provided. The signal detection method includes steps of: performing channel estimation based on a signal received by each of antennae, to acquire a channel estimation matrix for transmitters multiplexing on identical time-frequency resources on each of the antennae; determining an equivalent Pattern Division Multiple Access (PDMA) channel estimation matrix for each of the antennae based on a PDMA encoding matrix, and acquiring an equivalent multi-antenna PDMA channel estimation matrix for all the antennae based on the equivalent PDMA channel estimation matrix for each of the antennae; performing a joint detection based on the equivalent multi-antenna PDMA channel estimation matrix, an equivalent multi-antenna received signal vector and a set of constellation points of the transmitters multiplexing on the identical time-frequency resources, to acquire Log Likelihood Ratios (LLRs) for the transmitters; and decoding the LLRs for the transmitters, to acquire multi-user information at transmitting end.

    METHOD AND DEVICE FOR DATA TRANSMISSION
    3.
    发明申请

    公开(公告)号:US20170294989A1

    公开(公告)日:2017-10-12

    申请号:US15507702

    申请日:2015-08-14

    IPC分类号: H04L1/18 H04L29/08

    摘要: Embodiments of the present application relate to the technical field of wireless communications, and particularly to a method and device for data transmission, which are used to solve the problem in the prior art that a retransmission mechanism of an LTE system can meet general requirements for delay and reliability of the LTE but cannot meet higher requirements for delay and reliability caused by the application of new services. The method in the embodiments of the present invention comprises: a receiving side receives data from a sending side through multiple paths, the received data of each path being identical; and the receiving side performs multi-path data combination on the received data. According to the embodiments of the present invention, data is transmitted between a sending side and a receiving side through multiple paths, and data transmitted through each path is identical, so that the purpose of retransmission for many times is achieved, different radio channels can be fully utilized for connection, and the reliability of data transmission can be ensured with low requirements for delay.

    UPLINK SCHEDULING-FREE TRANSMISSION METHOD AND DEVICE

    公开(公告)号:US20190289574A1

    公开(公告)日:2019-09-19

    申请号:US16349164

    申请日:2017-08-22

    IPC分类号: H04W72/02 H04W72/04 H04W74/08

    摘要: An uplink scheduling-free transmission method and an uplink scheduling-free transmission device are provided. The uplink scheduling-free transmission method includes: dividing, by a base station, MA resources into groups of MA resources, and configuring, by the base station, the groups of MA resources to obtain at least two groups of MA resource pools, wherein at least parts of respective MA resources in the at least two groups of MA resource pools are different from each other; and notifying, by the base station, a UE of the at least two groups of MA resource pools, to enable the UE to select an MA resource pool from the at least two groups of MA resource pools, wherein the selected MA resource pool is to be used by the UE.

    DATA TRANSMISSION METHOD AND DEVICE
    10.
    发明申请

    公开(公告)号:US20180205506A1

    公开(公告)日:2018-07-19

    申请号:US15744525

    申请日:2016-07-29

    IPC分类号: H04L5/00 H04W72/04

    摘要: The present disclosure relates to the field of wireless communication technology, and provides a data transmission method and a data transmission device, so as to solve the problem in the related art where, for 5G application scenarios, in the case that an uplink scheduling algorithm for a conventional 4G system continues to be used, a large number of control signaling overheads are required due to the meteoric growth in the number of UEs to be connected. In the present disclosure, a network side device determines non-orthogonal multiple access basic transmission units allocated to UEs, detects a pilot signal from each UE on the corresponding non-orthogonal multiple access basic transmission unit, and in the case that the pilot signal has been detected, performs data detection on the UE which has transmitted the pilot signal through the non-orthogonal multiple access basic transmission unit.