Invention Grant
- Patent Title: System and method for beam-based physical random-access
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Application No.: US15725755Application Date: 2017-10-05
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Publication No.: US10433335B2Publication Date: 2019-10-01
- Inventor: Mattias Frenne , Håkan 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: H04W74/00
- IPC: H04W74/00 ; H04B7/08 ; H04W16/28 ; H04W72/04 ; H04L5/00 ; H04B7/0408 ; H04B7/06

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 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
- US20180049238A1 System and Method for Beam-Based Physical Random-Access Public/Granted day:2018-02-15
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