Invention Grant
- Patent Title: ACK/NACK signals for next generation LTE devices and systems
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Application No.: US15574681Application Date: 2015-12-18
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Publication No.: US10560229B2Publication Date: 2020-02-11
- Inventor: Gang Xiong , Huaning Niu , Hooman Shirani-Mehr , Yushu Zhang , Yuan Zhu
- Applicant: Intel IP Corporation
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- International Application: PCT/US2015/066655 WO 20151218
- International Announcement: WO2016/204811 WO 20161222
- Main IPC: H04L1/18
- IPC: H04L1/18 ; H04W72/04

Abstract:
Devices and methods of providing symmetric UL and DL ACK/NACKs is generally described. UL ACK/NACKs of different UEs are multiplexed and received by a UE with a PUSCH. The receiving UE in response transmits the DL ACK/NACK. The ACK/NACK may be transmitted in a localized or distributed manner among subbands that may be adjacent or each may have blocks separated by blocks of a different subband. The ACK and NACK may use independent resources or the NACK may not be transmitted on the single ACK/NACK resource, the lack of an ACK serving as a NACK. The ACK/NACK may be transmitted using a beamforming weight shaped by the received PUSCH/PDSCH. The ACK/NACK symbol may be located in the first symbol, adjacent to the PUSCH/PDSCH, or at the end of a TTI. If adjacent, the UL grant or UL assignment may indicate whether the ACK/NACK resource is used by the PUSCH/PDSCH.
Public/Granted literature
- US20180139014A1 ACK/NACK SIGNALS FOR NEXT GENERATION LTE DEVICES AND SYSTEMS Public/Granted day:2018-05-17
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