Invention Grant
- Patent Title: Facilitating beam recovery request for 5G or other next generation network
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Application No.: US15681131Application Date: 2017-08-18
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Publication No.: US10673685B2Publication Date: 2020-06-02
- Inventor: Salam Akoum , Arunabha Ghosh , Xiaoyi Wang
- Applicant: AT&T Intellectual Property I, L.P.
- Applicant Address: US GA Atlanta
- Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
- Current Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
- Current Assignee Address: US GA Atlanta
- Agency: Amin, Turocy & Watson, LLP
- Main IPC: H04W72/04
- IPC: H04W72/04 ; H04L12/24 ; H04L1/16 ; H04B7/08 ; H04B7/06 ; H04L5/00 ; H04W56/00 ; H04W74/08

Abstract:
When configured, a channel state information reference signal (CSI-RS) can be used to identify new beams. If CSI-RS based monitoring fails to identify new beams, and no other reference signals (RS) are used for beam management, the user equipment cannot identify a new beam. However, instead of using a 4-step random access channel (RACH) procedure for beam recovery request transmission, a modified 2-step contention-based RACH procedure can saves overhead and reduce latency associated with the 4-step procedure.
Public/Granted literature
- US20190058629A1 FACILITATING BEAM RECOVERY REQUEST FOR 5G OR OTHER NEXT GENERATION NETWORK Public/Granted day:2019-02-21
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