发明名称 |
RANDOM ACCESS SCHEME FOR USER EQUIPMENT |
摘要 |
A method and terminal for use in a communication system are discussed. The terminal can transmit a random access preamble via a physical random access channel (PRACH) to a network. The terminal may monitor a random access response after transmitting the random access preamble during a specific time window. Furthermore, if no random access response containing a random access preamble identifier corresponding to the transmitted random access preamble is received within the specific time window and a specific random access response contains a backoff indicator subheader is received, a preamble transmission counter is incremented by 1. A subsequent random access preamble transmission is delayed by a backoff time selected using a backoff indicator in the backoff indicator subheader, if the random access preamble was selected by a medium access control (MAC) layer. |
申请公布号 |
US2015245387(A1) |
申请公布日期 |
2015.08.27 |
申请号 |
US201514709093 |
申请日期 |
2015.05.11 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
PARK Sung Jun;YI Seung June;CHUN Sung Duck;LEE Young Dae |
分类号 |
H04W74/08;H04W74/00 |
主分类号 |
H04W74/08 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method of a terminal in a communication system, the method comprising:
transmitting a random access preamble via a physical random access channel (PRACH) to a network; and monitoring a random access response after transmitting the random access preamble during a specific time window, wherein, if no random access response containing a random access preamble identifier corresponding to the transmitted random access preamble is received within the specific time window and a specific random access response containing a backoff indicator subheader is received, the method further comprises: incrementing a preamble transmission counter by 1; and delaying a subsequent random access preamble transmission by a backoff time selected using a backoff indicator in the backoff indicator subheader, if the random access preamble was selected by a medium access control (MAC) layer. |
地址 |
Seoul KR |