Title:
サービス側高速ダウンリンクの共用チャネルセル変更の後に、ノードBにバッファされたデータを効率的に回復するシステム
Document Type and Number:
Japanese Patent JP4619445
Kind Code:
B2
Abstract:
The present invention relates to efficient recovery of High Speed Downlink Packet Access (HSDPA) data following handover. The present invention discloses a method and system for the UE to perform a serial of actions in order to reduce the latency and potentially prevent loss of PDU transmission during the serving HS-DSCH cell change procedure. A new criterion is introduced for UE generation of the status report of RLC PDU. The UE generates status report of the PDUs as soon as possible following notification of the HS-DSCH cell change indicated by the RRC procedure to more efficiently recover source Node B buffered data. PDU status may be signaled for each AM RLC instance associated with the HS-DSCH transport channel. Furthermore, upon Inter Node B serving HS-DSCH cell change the SRNC may wait for PDU status report before initiating transmission of new data in target cell.
Inventors:
Chao Yi Joo
Stephen E. Terry
Stephen E. Terry
Application Number:
JP2009187639A
Publication Date:
January 26, 2011
Filing Date:
August 13, 2009
Export Citation:
Assignee:
Interdigital Technology Corporation
International Classes:
H04J3/00; H04W36/02; H04B1/69; H04B7/26; H04L1/18; H04L12/56; H04W36/08; H04W36/24; H04W36/38; H04W36/06; H04W36/36; H04W88/12; H04W92/10
Domestic Patent References:
| JP4298682B2 | ||||
| JP11331208A |
Foreign References:
| US6445917 | ||||
| US6230013 |
Other References:
3rd Generation Partnership Project; Technical Specification Group Radio Access Network; High Speed D,3rd Generation Partnership Project,2002年 3月,3GPP TS 25.308 V5.2.0
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe