公开(公告)号：US10820277B2

公开(公告)日：2020-10-27

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 ,  H04W52/24 ,  H04W52/28 ,  H04W52/34 ,  H04W52/22 ,  H04W52/50

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：US20180083746A1

公开(公告)日：2018-03-22

申请号：US15562895

申请日：2016-03-22

Applicant: China Academy of Telecommunications Technology

Inventor： Shaoli Kang ,  Bin Ren ,  Hao Liu ,  Yang Song

IPC: H04L5/00 ,  H04L27/20 ,  H04L27/04

CPC classification number: H04L5/0007 ,  H04L5/0005 ,  H04L27/04 ,  H04L27/20

Abstract: The embodiments of the present application relate to the technical field of wireless communications, and in particular to a method and device for detecting data transmission and received signals, which are used for solving the problem in the prior art that it is disadvantageous for signal detection due to the fact that when a receiving end is detected in the scenario that each column of an encoding matrix of PDMA corresponds to one layer of data stream, multiple layers of data modulation symbols are superposed. The embodiments of the present application adjust various layers of data modulation symbols modulated by an initial modulation constellation diagram according to a modulation constellation rotating factor corresponding to various layers of data modulation symbols, so that the modulation constellation diagrams corresponding to various layers of data modulation symbols are not superposed, thereby preventing the problem of being disadvantageous for signal detection of a receiving end due to the fact that multiple layers of data modulation symbols are superposed in the scenario that each column of the encoding matrix of PDMA corresponds to one layer of data stream; and further improving the system performance.

公开(公告)号：US10708888B2

公开(公告)日：2020-07-07

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: H04B7/04 ,  H04W72/12 ,  H04J3/16 ,  H04W72/04 ,  H04W64/00 ,  H04J99/00 ,  H04L5/00 ,  H04L25/02 ,  H04W88/08 ,  H04W74/08

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.

公开(公告)号：US10263736B2

公开(公告)日：2019-04-16

申请号：US15562895

申请日：2016-03-22

Applicant: China Academy of Telecommunications Technology

Inventor： Shaoli Kang ,  Bin Ren ,  Hao Liu ,  Yang Song

IPC: H04L5/00 ,  H04L27/04 ,  H04L27/20

Abstract: A method and device for data transmission and detecting received signals are provided. The transmitting end adjusts each of a plurality of layers of data modulation symbols on each of time-frequency resources modulated by an initial modulation constellation diagram, according to a modulation constellation rotating factor corresponding to each of layers of data modulation symbols on each of the time-frequency resources; and the transmitting end transmits the plurality of layers of adjusted data modulation symbols superposed on each of time-frequency resources.

公开(公告)号：US10355883B2

公开(公告)日：2019-07-16

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 ,  H04B7/06 ,  H04B7/08 ,  H04J99/00 ,  H04B7/0452

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.