Title:
無線通信システムにおいてアップリンク同期化を遂行する方法
Document Type and Number:
Japanese Patent JP5285167
Kind Code:
B2
Abstract:
Method and user equipment UE for performing uplink synchronization in a wireless communication system, the method comprising: transmitting a random access preamble from a user equipment UE to a network; receiving at the UE a random access response from the network, the random access response comprising a temporary UE identifier and a time alignment value for uplink synchronization with the network; starting a time alignment timer in the UE responsive to receiving of the time alignment value; determining whether contention resolution is successful between the UE and the network; and stopping the time alignment timer in the UE if the contention resolution is not successful.
Inventors:
Park Jun
Lee Young Dae
Eason Jun
Chun Sung Dak
Lee Young Dae
Eason Jun
Chun Sung Dak
Application Number:
JP2012110474A
Publication Date:
September 11, 2013
Filing Date:
May 14, 2012
Export Citation:
Assignee:
LG ELECTRONICS INC.
International Classes:
H04W56/00; H04J11/00; H04L7/00; H04M1/00; H04W74/00; H04W74/08
Foreign References:
| WO2008096984A1 |
Other References:
Samsung,Contention resolution in aRACH,3GPP TSG-RAN WG2#57bis R2-071386,2007年 3月30日
TD Tech,Contention Resolution and Initial Random Access,3GPP TSG-RAN WG2#57 R2-070910,2007年 2月19日
IPWireless,Initial Access Procedure and C-RNTI Allocation,3GPP TSG-RAN WG2#56bis R2-070301,2007年 1月19日
IPWireless,Contention Resolution in Non-synchronous RACH Access,3GPP TSG-RAN WG2#54 R2-062269,2006年 9月 1日
TD Tech,Contention Resolution and Initial Random Access,3GPP TSG-RAN WG2#57 R2-070910,2007年 2月19日
IPWireless,Initial Access Procedure and C-RNTI Allocation,3GPP TSG-RAN WG2#56bis R2-070301,2007年 1月19日
IPWireless,Contention Resolution in Non-synchronous RACH Access,3GPP TSG-RAN WG2#54 R2-062269,2006年 9月 1日
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita