Patent ID: 8761096
Filing Date: 2014-06-24
Classification: H04W

Abstract:
1. A method of random access procedure, comprising: performing grouping and dividing of random access preambles according to versions of mobile terminals and random access response (RAR) formats; receiving information related to the random access preamble at the mobile terminal, the information indicating a first random access preamble related to a first format and a second random access preamble related to a second format; selecting the random access preamble according to the received information; transmitting the selected random access preamble; receiving a random access response, wherein the received random access response comprises at least one of a first Random Access Radio Network Temporary Identifier (RA-RNTI) related to the first format and a second Random Access Radio Network Temporary Identifier (RA-RNTI) related to the second format, wherein the received random access response further comprises an R bit used for indicating the first format or the second format associated with the selected random access preamble, wherein the first format is associated with mobile terminals supporting Long Term Evolution (LTE) and the second format is associated with mobile terminals supporting LTE-Advanced; and decoding the received random access response according to the format associated with the selected random access preamble.