Patent ID: 11910252
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of operating a wireless device in a wireless communication network, the method comprising:
transmitting to a radio network node in the wireless communication network, a first preamble associated with a selected downlink beam;
monitoring the wireless communication network for a random access response, RAR, during a first RAR reception window;
responsive to the RAR not being received during the first RAR reception window, transmitting, to the radio network node, a second preamble associated with a second beam; and
monitoring the wireless communication network for the RAR during a second RAR reception window of a different beam, wherein the first preamble is associated with a channel state information reference signal and the second preamble is associated with a synchronization signal block.