Inter Node B serving HS-DSCH cell change mechanism in a high speed wireless communication system
OwnerChih-Hsiang Wuinventor
Life of this patent
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Abstract
This invention uses proper RRC procedures to invoke a RLC re-establishment function in UE and UTRAN to initialize state variables, configuration parameters and synchronize HFNs in UM RLC transmitter and receiver in an Inter Node B Serving HS-DSCH Cell Change procedure.
Claims23
A method for improving an inter Node B serving HS-DSCH cell change process of the mobility of HSDPA between UTRAN and UEs in a high speed wireless communication system, wherein UTRAN, upon receiving statuses from a connected UE, deciding to invoke an Inter Node B serving HS-DSCH cell change process in which an UE establishing a new radio link with a target Node B to replace an old radio link with a source Node B, the method comprising the steps of:
- at the UE:
- receiving a reconfiguration message from the UTRAN that initiates an Inter Node B serving HS-DSCH cell change procedure for the UE;
- transmitting a confirmation message to the UTRAN in response to the reconfiguration message;
- receiving an acknowledgement that the UTRAN successfully received the confirmation message;
- and
- in response to the acknowledgement, re-establishing a UM RLC entity which receive UM PDUs from HS-DSCH.
A method for improving an inter Node B serving HS-DSCH cell change process of the mobility of HSDPA between UTRAN and UEs in a high speed wireless communication system, wherein UTRAN, upon receiving statuses from a connected UE, deciding to invoke an Inter Node B serving HS-DSCH cell change process in which an UE establishing a new radio link with a target Node B to replace an old radio link with a source Node B, the method comprising the steps of:
- at the UTRAN:
- sending a reconfiguration message that initiates an Inter Node B serving HS-DSCH cell change procedure for the UE;
- and
- receiving a confirmation message from the UE in response to the reconfiguration message;
- and
- re-establishing a UM RLC entity which transmits UM PDUs through HS-DSCH to the UE.
A method for improving an inter Node B serving HS-DSCH cell change process of the mobility of HSDPA between UTRAN and UEs in a high speed wireless communication system, wherein UTRAN, upon receiving statuses from a connected UE, deciding to invoke an Inter Node B serving HS-DSCH cell change process in which an UE establishing a new radio link with a target Node B to replace an old radio link with a source Node B, the method comprising the steps of:
- the UTRAN sending a reconfiguration message that initiates a an Inter Node B serving HS-DSCH cell change procedure for the UE;
- the RRC layer of the UE receiving a reconfiguration message from the UTRAN;
- the UE transmitting a confirmation message to the UTRAN in response to the reconfiguration message;
- the UTRAN receiving the confirmation message from the UE;
- the RRC layer of the UE receiving an acknowledgment that the UTRAN successfully received the confirmation message;
- in response to the acknowledgment, the RRC layer of the UE re-establishing a UM RLC entity which receives UM PDUs from HS-DSCH;
- and
- the RRC layer of the UTRAN re-establishing a UM RLC entity which transmits UM PDUs through HS-DSCH to the UE.
A system having means for improving an inter Node B serving HS-DSCH cell change process of the mobility of HSDPA between UTRAN and UEs in a high speed wireless communication system, wherein UTRAN, upon receiving statuses from a connected UE, deciding to invoke an Inter Node B serving HS-DSCH cell change process in which an UE establishing a new radio link with a target Node B to replace an old radio link with a source Node B, the system comprising:
- at the UE:
- means for receiving a reconfiguration message from the UTRAN by the RRC layer of the UE that initiates an Inter Node B serving HS-DSCH cell change procedure for the UE;
- means for transmitting a confirmation message to the UTRAN in response to the reconfiguration message;
- means for receiving an acknowledgment that the UTRAN successfully received the confirmation message;
- and
- in response to the acknowledgment, means for re-establishing a UM RLC entity which receives UM PDUs from HS-DSCH. and
- at the UTRAN:
- means for sending a reconfiguration message that initiates a an Inter Node B serving HS-DSCH cell change procedure for the UE;
- and
- means for receiving a confirmation message from the UE in response to the reconfiguration message;
- and
- means for re-establishing a UM RLC entity which transmits UM PDUs through HS-DSCH to the UE.
Dependencies are inferred from the claim text.