公开(公告)号：US20190058554A1

公开(公告)日：2019-02-21

申请号：US16105109

申请日：2018-08-20

Applicant: MEDIATEK INC.

Inventor： Pei-Kai Liao ,  Ming-Che Lu ,  Yen-Shuo Chang ,  Chien-Hwa Hwang

IPC: H04L1/18 ,  H04W72/04

Abstract: An efficient Hybrid Automatic Repeat Request (HARQ) operation for low-latency and high-performance services in one radio access technology (RAT) in a wireless communication network is proposed. Under the proposed single HARQ operation scheme, an adaptive HARQ-ACK feedback timing is applied based on UE conditions and UE capability to support the tradeoff between low-latency and high-performance applications. In one embodiment, UE signals the network its HARQ-ACK timing capability. Furthermore, an adaptive number of HARQ processes is applied with a fixed HARQ soft buffer size because the hardware cost for HARQ soft buffer does not linearly increase with the number of HARQ processes. In one embodiment, UE determines a nominal HARQ soft buffer size and HARQ soft buffer size for each HARQ process based on a network-configured HARQ process number.

公开(公告)号：US20200228249A1

公开(公告)日：2020-07-16

申请号：US16835457

申请日：2020-03-31

Applicant: Mediatek Inc.

Inventor： Pei-Kai Liao ,  Ming-Che Lu ,  Yan-Shuo Chang ,  Chien-Hwa Hwang

IPC: H04L1/18 ,  H04W72/04

Abstract: An efficient Hybrid Automatic Repeat Request (HARQ) operation for low-latency and high-performance services in one radio access technology (RAT) in a wireless communication network is proposed. Under the proposed single HARQ operation scheme, an adaptive HARQ-ACK feedback timing is applied based on UE conditions and UE capability to support the tradeoff between low-latency and high-performance applications. In one embodiment, UE signals the network its HARQ-ACK timing capability. Furthermore, an adaptive number of HARQ processes is applied with a fixed HARQ soft buffer size because the hardware cost for HARQ soft buffer does not linearly increase with the number of HARQ processes. In one embodiment, UE determines a nominal HARQ soft buffer size and HARQ soft buffer size for each HARQ process based on a network-configured HARQ process number.