Invention Grant
- Patent Title: System and method for beam-based physical random-access
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Application No.: US16395461Application Date: 2019-04-26
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Publication No.: US10779323B2Publication Date: 2020-09-15
- Inventor: Mattias Frenne , Hákan Andersson , Johan Furuskog , Stefan Parkvall , Henrik Sahlin , Qiang Zhang
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Baker Botts, LLP
- Main IPC: H04L29/08
- IPC: H04L29/08 ; H04W74/00 ; H04B7/08 ; H04W72/04 ; H04B7/0408 ; H04B7/06 ; H04W16/28 ; H04L5/00

Abstract:
A method in a wireless device for performing random access to a network node. The method comprises receiving a set of downlink beam-specific reference signals, BRS, from the network node, and determining a preferred BRS based on the received signal power for each BRS. The method also comprises selecting, based on the preferred BRS, a random-access resource to be used for transmitting a random-access attempt to the network node, as well as using the selected random-access resource when transmitting a random-access attempt to the network node, whereby the selection of random-access resource indicates to the network node which downlink beam is preferred by the wireless device to be used for downlink transmissions.
Public/Granted literature
- US20190254068A1 System and Method for Beam-Based Physical Random-Access Public/Granted day:2019-08-15
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