Methods and systems for HARQ protocols,申请号US201514918934-传众专利搜索

Methods and systems for HARQ protocols

申请公布号：US9374198(B2)

申请号：US201514918934

申请日期：2015.10.21

申请公布日期：2016.06.21

申请人：

Apple Inc.

发明人：Fong Mo-Han;Vrzic Sophie;Novak Robert;Yuan Jun;Yu Dong-Sheng

分类号：H04L1/18;H04W72/04;H04W72/00;H04L5/14;H04L5/00;H04W88/04;H04W88/06;H04W28/04;H04W72/12

主分类号：H04L1/18

代理机构：

Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.

代理人：Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.

地址：Cupertino CA US

摘要：Methods described herein are for wireless communication systems. One aspect of the invention is directed to a method for a HARQ process, in which the HARQ process includes a first transmission of an encoder packet and at least one retransmission. The method involves allocating a transmission resource for each respective transmission. The method involves transmitting control information from a base station to a mobile station for each respective transmission. The control information includes information to uniquely identify the HARQ process and an identification of one of a time resource, a frequency resource and a time and frequency resource that is allocated for the transmission. In some embodiments of the invention, specific control information is signalled from a base station to a mobile station to enable RAS-HARQ operation. In some embodiments of the invention, retransmission signaling in included as part of regular unicast signaling used for both first transmission and retransmissions. In some embodiments of the invention, a 3-state acknowledgement channel and associated error recovery operation enables the base station and mobile station to recover from control signaling error and reduce packet loss.

主权项：1. An apparatus, comprising: a baseband processor, wherein the baseband processor is configured to: receive system broadcast signaling, wherein the system broadcast signaling defines a set of parameters, and wherein the set of parameters are a function of a time division duplexing downlink/uplink (TDD DL/UL) subframe ratio;receive a first packet transmission on a DL subframe, wherein the first packet transmission is one of a packet transmission or retransmission; anddetermine, in response to the previously received first packet transmission, timing for transmitting a hybrid automatic repeat request (HARQ) acknowledgment/negative acknowledgment (ACK/NAK), wherein the timing is deducible based on the system broadcast signaling.