Patent ID: 11917572
Assignee: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. The method according to claim 7, wherein
in the scheme 1:
the duration of the RAR window is equal to a sum of a difference value between a maximum RTT and a reference RTT and a base station processing delay;
wherein a time length by which the sending moment of the random access preamble sent by the terminal is delayed is equal to a sum of the reference RTT and a first offset;
wherein the first offset is equal to a difference value obtained by subtracting the reference RTT from a real RTT of the terminal;
in the scheme 2:
the duration of the ra-ContentionResolutionTimer is equal to a sum of a difference value between a maximum RTT and a reference RTT and a base station processing delay;
wherein a time length by which the sending moment of the Msg3 sent by the terminal is delayed is equal to a sum of the reference RTT and a second offset;
wherein the second offset is equal to a difference value obtained by subtracting the reference RTT from a real RTT of the terminal.