公开(公告)号：US20210021328A1

公开(公告)日：2021-01-21

申请号：US17043630

申请日：2019-04-01

Applicant: China Academy of Telecommunications Technology

Inventor： Li ZHAO ,  Rui ZHAO ,  Rui SHI ,  Qiong LI

IPC: H04B7/08 ,  G08G1/00 ,  H04W4/029 ,  H04W72/04 ,  G08G1/01 ,  G08G1/16 ,  H04W4/40

Abstract: A beam tracking method and apparatus, describes that, during vehicle platooning, following vehicles have a low reliability of receiving a beam signal and a low speed of discovering a beam signal. Said method includes: receiving first position information of a designated vehicle obtaining, on the basis of the first position information and second position information of a following vehicle, relative position information of the designated vehicle and the following vehicle; and tracking, according to the relative position information, a beam transmitted by the designated vehicle.

公开(公告)号：US20210051688A1

公开(公告)日：2021-02-18

申请号：US17044324

申请日：2019-04-12

Applicant: China Academy of Telecommunications Technology

Inventor： Li ZHAO ,  Ying PENG ,  Rui ZHAO ,  Qiong LI

IPC: H04W72/12 ,  H04W72/04 ,  H04L27/26 ,  H04W4/40

Abstract: A method and device for BWP allocation are discloses. First, difference information between a first node and a second node is determined; then, whether an allocation condition is satisfied is determined according to the difference information and the reliability requirement of a service corresponding to a BWP needing to be allocated to the first node, and if the allocation condition is satisfied, the BWP is allocated to the first node in a time unit corresponding to the second node; and at this time, the second node can resist trailing signal interference by means of a coding gain, etc.

公开(公告)号：US20180083802A1

公开(公告)日：2018-03-22

申请号：US15561357

申请日：2016-01-27

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Shaoli KANG ,  Bin REN ,  Hao LIU ,  Qiong LI ,  Qiubin GAO

IPC: H04L25/02 ,  H04B7/04 ,  H04L5/00

CPC classification number: H04L25/0204 ,  H04B7/04 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0802 ,  H04B7/0848 ,  H04J15/00 ,  H04L5/0001 ,  H04L5/0005

Abstract: 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.