Title:
無線通信システムのパケットデータ収斂プロトコル構造(PDCP)およびその方法
Document Type and Number:
Japanese Patent JP4297655
Kind Code:
B2
Abstract:
Disclosed are a method and a device for offering a packet data service during to a handover of a user terminal from one radio network controller to another. To avoid the loss of data during SRNS relocation, there is provided a method for checking the validity of the next expected receive PDCP sequence number sent from a receiver PDCP layer with the send PDCP sequence number of the first transmitted but not yet acknowledged PDCP SDU and the send PDCP sequence number first unsent PDCP SDU of the sender PDCP layer. A PDCP protocol structure is reconstructed to support a lossless SRNS relocation in the packet service domain, and control information and operational procedure therefore are newly defined. As a result, the lossless SRNS relocation is achieved in the packet service domain and the mobility of data communication is ensured.
Inventors:
Lee Seung-shun
Lu luck luck
Park Shujin
Lu luck luck
Park Shujin
Application Number:
JP2002200529A
Publication Date:
July 15, 2009
Filing Date:
July 09, 2002
Export Citation:
Assignee:
LG ELECTRONICS INC.
International Classes:
H04B7/26; H04W36/02; H04L1/18; H04L29/06; H04W36/00; H04W36/10; H04W36/38; H04W76/02; H04W92/22
Other References:
LG Electronics Inc.,Problems in lossless SRNS relocation procedure,3GPP TSG-RAN WG2 Meeting #22,2001年 7月 7日,R2-011644,URL,http://www.3gpp.org/ftp/tsg_ran/WG2_RL2/TSGR2_22/Docs/Zips/R2-011644.zip
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita