发明授权
- 专利标题: Efficient allocation of uplink HARQ-ACK resources for LTE enhanced control channel
-
申请号: US14026878申请日: 2013-09-13
-
公开(公告)号: US11245507B2公开(公告)日: 2022-02-08
- 发明人: Anthony Edet Ekpenyong , Runhua Chen
- 申请人: Texas Instruments Incorporated
- 申请人地址: US TX Dallas
- 专利权人: Texas Instruments Incorporated
- 当前专利权人: Texas Instruments Incorporated
- 当前专利权人地址: US TX Dallas
- 代理商 Gregory J. Albin; Charles A. Brill; Frank D. Cimino
- 主分类号: H04L5/00
- IPC分类号: H04L5/00 ; H04L1/16 ; H04L1/18
摘要:
Systems and methods for selecting Physical Uplink Control Channel (PUCCH) resources are disclosed. An Enhanced Physical Downlink Control Channel (EPDCCH) is detected in signals received from a base station in a first subframe. A HARQ-ACK resource indicator offset (ΔARO) value is identified for the EPDCCH. A PUCCH resource is selected for transmission of a Hybrid Automatic Repeat reQuest-ACKnowledgement (HARQ-ACK) corresponding to the EPDCCH. The PUCCH resource is selected based upon the ΔARO value. The ΔARO value may correspond to a semi-statically configured PUCCH resource. A second PUCCH resource may be selected for transmission of the HARQ-ACK on a second antenna port. A HARQ-ACK resource offset field value may be detected in a Downlink Control Information (DCI) format of the EPDCCH. A table that maps the HARQ-ACK resource offset field value for certain DCI formats to ΔARO values may be used to determine the ΔARO value for the EPDCCH.
公开/授权文献
信息查询