Patent ID: 11889547
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. An apparatus comprising:
a non-transitory memory configured to store instructions; and
a processor coupled to the non-transitory memory, wherein the instructions cause the processor to be configured to:
send, on a first time domain resource, a random access preamble to a base station wherein a round-trip delay (RTD) between the apparatus and the base station is greater than a duration of a single slot;
obtain a first index value of the first time domain resource;
obtain an index difference between the first time domain resource and a second time domain resource based on the RTD, wherein the second time domain resource is for the base station to receive the random access preamble;
obtain a second index value of the second time domain resource by adding the first index value and the index difference;
obtain a random access radio network temporary identifier (RA-RNTI) based on the second index value;
receive a random access response (RAR) from the base station; and
descramble a cyclic redundancy check (CRC) code of the RAR using the RA-RNTI.