CN1647555A

3G

Title

SYSTEM FOR EFFICIENT RECOVERY OF NODE B BUFFERED DATA FOLLOWING SERVING HIGH SPEED DOWNLINK SHARED CHANNEL CELL CHANGE

Application Number:

CN2003807731

Publication Date:

27-07-2005

Current Assignee:

Family ID:

Application Date:

02-04-2003

Declaring Company:

Publication Country:

US

Priority Date:

05-04-2002

Title

SYSTEM FOR EFFICIENT RECOVERY OF NODE B BUFFERED DATA FOLLOWING SERVING HIGH SPEED DOWNLINK SHARED CHANNEL CELL CHANGE

Application Number:

CN2003807731

Family ID:

Publication Country:

US

Publication Date:

27-07-2005

Application Date:

02-04-2003

Priority Date:

05-04-2002

Current Assignee:

Declaring Company:

Abstract  Abstract

The invention is about the handover effectively restoring the high speed downlink packet access (HSDPA) data are described. The invention claims a method and system to enable the UE to perform a series of actions to facilitate the serving high speed downlink shared channel (HS-DSCH) cell change during the process shortens the waiting time and potentially prevent loss occurs during the transmission of the packet data unit (PDU). a new criterion is introduced for UE generating the RLC PDU state report. after the HS-DSCH cell notifies the radio resource control (RRC) program changes indicated by the UE generates the PDU state report to more efficiently return buffer data from source node B. can be relative PDU status communication to each associated with the HS-DSCH transport channel AM radio link control (RLC) instance. Furthermore upon inter-Node B serving HS-DSCH cell changes the SRNC can after accepting the PDU state report it begins to transmit the new data in the target cell.

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.

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.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.