Invention Grant
- Patent Title: Hybrid automatic repeat request timing for reduced transmission time intervals
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Application No.: US15444875Application Date: 2017-02-28
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Publication No.: US10341061B2Publication Date: 2019-07-02
- Inventor: Wanshi Chen , Peter Gaal , Shimman Arvind Patel , Yongbin Wei , Aleksandar Damnjanovic
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Anthony R. Morris
- Main IPC: H04L1/18
- IPC: H04L1/18 ; H04W72/04 ; H04W72/12 ; H04W74/02 ; H04L5/00

Abstract:
Systems, methods, and apparatuses are described for wireless communication, including for hybrid automatic repeat request (HARQ) feedback in a system that supports communications using transmission time intervals (TTIs) of different durations. A base station may identify a user equipment's (UE) capability to provide HARQ feedback for transmissions that use TTIs of a shorter duration relative to other TTIs supported in the system. The base station may select a HARQ timing mode based on the capability of the UE and may indicate the selected HARQ timing mode to the UE. The base station may then transmit one or more data transmissions to the UE using the reduced TTIs. The UE may respond with HARQ feedback based on the HARQ timing mode. The HARQ timing mode may be based on different response times based on the location of the data transmission within a TTI or relative to data transmission in other TTIs.
Public/Granted literature
- US20170288819A1 HYBRID AUTOMATIC REPEAT REQUEST TIMING FOR REDUCED TRANSMISSION TIME INTERVALS Public/Granted day:2017-10-05
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