公开(公告)号：US11375550B2

公开(公告)日：2022-06-28

申请号：US16908525

申请日：2020-06-22

Applicant: ZTE Corporation

Inventor： Li Tian ,  Wei Cao ,  Sha Wang ,  Yifei Yuan ,  Zhifeng Yuan

IPC: H04W74/08 ,  H04W76/27 ,  H04W4/06 ,  H04W28/16 ,  H04L41/142

Abstract: Optimizing the resource configuration or selection for grant-free contention-based non-orthogonal multiple access (NOMA) transmissions is an effective way to increase network capacity and reduce multi-user interference at the user equipment (UE). In some embodiments, a network node may determine the current traffic load, select multiple access (MA) sequences for the UE based on the determination, and transmit this selection to the UE for subsequent transmissions. In other embodiments, the UE may receive a message with an indication of the traffic load being experienced by the base station that the UE is attempting to connect to, and then may randomly select an MA sequence for subsequent transmissions.

公开(公告)号：US11451276B2

公开(公告)日：2022-09-20

申请号：US16941377

申请日：2020-07-28

Applicant: ZTE Corporation

Inventor： Sha Wang ,  Yifei Yuan ,  Li Tian ,  Zhifeng Yuan ,  Wei Cao

IPC: H04B7/0456 ,  H04L27/26 ,  H04W72/04

Abstract: A method and apparatus for generating and utilizing spreading sequence codebooks for a symbol-level sequence spreading is disclosed. In one embodiment, a method performed by a wireless communication device, comprising: receiving a first number from a wireless communication node; selecting a first spreading sequence codebook from at least one spreading sequence codebook; selecting a first spreading sequence from the first spreading sequence codebook according to the first number; and spreading data symbols according to the first spreading sequence, wherein the at least one spreading sequence codebook each comprises a plurality of spreading sequences configured based on one entry of a first sequence set after cyclic shifting operation, wherein the first sequence set before cyclic shifting operation is configured based on a second sequence set.

公开(公告)号：US20200322994A1

公开(公告)日：2020-10-08

申请号：US16908525

申请日：2020-06-22

Applicant: ZTE Corporation

Inventor： Li Tian ,  Wei Cao ,  Sha Wang ,  Yifei Yuan ,  Zhifeng Yuan

IPC: H04W74/08 ,  H04W76/27 ,  H04L12/24 ,  H04W4/06

Abstract: Optimizing the resource configuration or selection for grant-free contention-based non-orthogonal multiple access (NOMA) transmissions is an effective way to increase network capacity and reduce multi-user interference at the user equipment (UE). In some embodiments, a network node may determine the current traffic load, select multiple access (MA) sequences for the UE based on the determination, and transmit this selection to the UE for subsequent transmissions. In other embodiments, the UE may receive a message with an indication of the traffic load being experienced by the base station that the UE is attempting to connect to, and then may randomly select an MA sequence for subsequent transmissions.