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.

公开(公告)号：US20200092822A1

公开(公告)日：2020-03-19

申请号：US15749772

申请日：2016-06-08

Applicant: China Academy of Telecommunications Technology

Inventor： Shaoli KANG ,  Xiaodong SUN ,  Hao LIU ,  Bin REN ,  Qiubin GAO

IPC: H04W52/14 ,  H04W52/50 ,  H04W52/28 ,  H04W52/34 ,  H04W52/24 ,  H04W52/22

Abstract: An uplink power allocation method, an uplink power allocation device and an uplink power allocation system are provided. The uplink power allocation method includes: determining users to be paired, based on locations of the users within the cell; determining Patten Division Multiple Access (PDMA) pattern matrixes, allocating different PDMA pattern vector groups for the users respectively, and obtaining a power control pattern matrix based on the PDMA pattern vector groups; and determining power control factors of the users in each pair based on the power control pattern matrix, and determining an uplink transmission power of each user based on the power control factors.

公开(公告)号：US20180234948A1

公开(公告)日：2018-08-16

申请号：US15750826

申请日：2016-07-29

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Bin REN ,  Shaoli KANG ,  Hao LIU ,  Yang SONG ,  Qiubin GAO

IPC: H04W72/04 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04W72/04 ,  H04J15/00 ,  H04L5/0048 ,  H04L25/0224 ,  H04W64/00 ,  H04W74/08 ,  H04W88/08

Abstract: The present disclosure discloses an uplink detection method and device in a NOMA system. The method includes: performing pilot activation detection on each terminal in a first terminal set corresponding to a NOMA transmission unit block repeatedly until a detection end condition is met, wherein the first terminal set includes terminals that may transmit uplink data on the NOMA transmission unit block; performing channel estimation on each terminal in a second terminal set that determined through the pilot activation detection within each repetition period, wherein the second terminal set includes terminals that have actually transmitted uplink data on the NOMA transmission unit block; and detecting and decoding a data channel of each terminal in the second terminal set within each repetition period.