Apparatus, method and computer program product providing radio link parameter update for reallocation of HARQ process for 2ms NST/ST

• US 7,966,019 B2
• Filed: 10/31/2006
• Issued: 06/21/2011
• Est. Priority Date: 11/02/2005
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Nakamata, Masatoshi
• Primary Examiner(s): Ly; Nghi H
• Assistant Examiner(s): Wyche; Myron
• Application Number:
  US11/591,407
• Publication Number:
  US 20070116002A1
• Time in Patent Office: 1,694 Days
• Field of Search: 370/310, 370/312, 370/322, 370/329, 370/331, 370/338, 370/444, 370/469, 455/412.2, 455/451, 455/512
• US Class Current: 455/451
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements

Abstract

A method, apparatus, and computer program for re-allocating a hybrid automatic repeat request HARQ process is described where a Node B initiates HARQ re-allocation by sending to a radio network controller RNC a RL PARAMETER UPDATE INDICATION message that includes at least one of a HARQ process allocation for 2 ms non-scheduled transmission NST GRANT information element IE and a HARQ process allocation for 2 ms scheduled transmission ST GRANT IE indicating a value for HARQ process re-allocation. The Node B then receives from the RNC a RL RECONFIGURATION PREPARE or REQUEST message that contains the NST or ST GRANT IE. Responsive to receiving the RL RECONFIGURATION PREPARE or REQUEST message, the Node B sends to the RNC a RL RECONFIGURATION READY or RESPONSE message, then receives from the RNC a RL RECONFIGURATION COMMIT message. Responsive to the COMMIT message, the Node B re-allocates the HARQ process according to the RL RECONFIGURATION PREPARE or REQUEST message.

Claims

1. A method comprising:

initiating at a Node B a hybrid automatic repeat request re-allocation by sending from the Node B to a serving radio network controller a RADIO LINK PARAMETER UPDATE INDICATION message that comprises at least one of a hybrid automatic repeat request process allocation for 2 ms non-scheduled transmission GRANT information element and a hybrid automatic repeat request process allocation for 2 ms scheduled transmission GRANT information element, said at least one information element indicating a value for hybrid automatic repeat request process re-allocation;

receiving at the Node B from the serving radio network controller one of a RADIO LINK RECONFIGURATION PREPARE message or a RADIO LINK RECONFIGURATION REQUEST message that contains the said at least one information element;

responsive to receiving the RADIO LINK RECONFIGURATION PREPARE message or the RADIO LINK RECONFIGURATION REQUEST message, sending from the Node B to the serving radio network controller a RADIO LINK RECONFIGURATION READY message or a RADIO LINK RECONFIGURATION RESPONSE message;

receiving at the Node B from the serving radio network controller a RADIO LINK RECONFIGURATION COMMIT message for the case of synchronized radio link reconfiguration; and

re-allocating the hybrid automatic repeat request process according to the received RADIO LINK RECONFIGURATION PREPARE message or the received RADIO LINK RECONFIGURATION REQUEST message.

2. The method of claim 1, wherein:

RADIO LINK PARAMETER UPDATE INDICATION message;

the RADIO LINK RECONFIGURATION PREPARE or REQUEST message;

the RADIO LINK RECONFIGURATION READY or RESPONSE message; and

the RADIO LINK RECONFIGURATION COMMIT message;

each comprises at least one of Node B Application Part NBAP message or a Radio Node Subsystem Application Part message.

3. A method comprising:

receiving from a Node B a RADIO LINK PARAMETER UPDATE INDICATION message that comprises at least one of a hybrid automatic repeat request process allocation for 2 ms non-scheduled transmission GRANT information element and a hybrid automatic repeat request process allocation for 2 ms scheduled transmission GRANT information element, said at least one information element indicating a value for hybrid automatic repeat request process re-allocation;

responsive to receiving the RADIO LINK PARAMETER UPDATE INDICATION message, sending to the Node B one of a RADIO LINK RECONFIGURATION PREPARE message and a RADIO LINK RECONFIGURATION REQUEST message that contains the said at least one information element; and

thereafter

responsive to receiving from the Node B one of a RADIO LINK RECONFIGURATION READY message or a RADIO LINK RECONFIGURATION RESPONSE message, sending to the Node B a RADIO LINK RECONFIGURATION COMMIT message for the case of synchronized radio link reconfiguration.

4. The method of claim 3, wherein:

RADIO LINK PARAMETER UPDATE INDICATION message;

the RADIO LINK RECONFIGURATION PREPARE or REQUEST message;

the RADIO LINK RECONFIGURATION READY or RESPONSE message; and

the RADIO LINK RECONFIGURATION COMMIT message;

each comprises at least one of Node B Application Part NBAP message or a Radio Node Subsystem Application Part message.

5. The method of claim 3 executed in association with a handover of a user equipment to or from the Node B, wherein:

sending to the Node B one of a RADIO LINK RECONFIGURATION PREPARE message and a RADIO LINK RECONFIGURATION REQUEST message comprises sending that message to all Node B'"'"'s involved in the handover;

and wherein sending to the Node B a RADIO LINK RECONFIGURATION COMMIT message comprises, responsive to receiving from all Node B'"'"'s involved in the handover a RADIO LINK RECONFIGURATION READY message or a RADIO LINK RECONFIGURATION RESPONSE message, sending to all Node B'"'"'s involved in the handover the RADIO LINK RECONFIGURATION COMMIT message for the case of synchronized radio link reconfiguration.

6. An information bearing medium storing a program of machine-readable instructions, executable by a digital data processor, to perform actions directed toward re-allocating a hybrid automatic repeat request process, the actions comprising:

receiving from a Node B a RADIO LINK PARAMETER UPDATE INDICATION message that comprises at least one of a hybrid automatic repeat request process allocation for 2 ms non-scheduled transmission GRANT information element and a hybrid automatic repeat request process allocation for 2 ms scheduled transmission GRANT information element indicating a value for hybrid automatic repeat request process re-allocation;

responsive to receiving the RADIO LINK PARAMETER UPDATE INDICATION message, sending to the Node B one of a RADIO LINK RECONFIGURATION PREPARE message and a RADIO LINK RECONFIGURATION REQUEST message that contains the said at least one information element;

responsive to receiving from the Node B one of a RADIO LINK RECONFIGURATION READY message and a RADIO LINK RECONFIGURATION RESPONSE message, sending to the Node B a RADIO LINK RECONFIGURATION COMMIT message for the case of synchronized radio link reconfiguration.

7. The medium of claim 6 executed in association with a handover of a user equipment to or from the Node B, wherein:

sending to the Node B one of a RADIO LINK RECONFIGURATION PREPARE message and a RADIO LINK RECONFIGURATION REQUEST message comprises sending the RADIO LINK RECONFIGURATION PREPARE message or RADIO LINK RECONFIGURATION REQUEST message to all Node B'"'"'s involved in the handover;

and wherein sending to the Node B a RADIO LINK RECONFIGURATION COMMIT message comprises, responsive to receiving from all Node B'"'"'s involved in the handover one of a RADIO LINK RECONFIGURATION READY message and a RADIO LINK RECONFIGURATION RESPONSE message, sending to all Node B'"'"'s involved in the handover the RADIO LINK RECONFIGURATION COMMIT message for the case of synchronized radio link reconfiguration.

13. The medium of claim 6, disposed within a controlling node of a radio network.

8. An integrated circuit in combination with software embodied on a computer readable medium, configured to cooperate so as to signal for a re-allocation of a hybrid automatic repeat request process by:

initiating a hybrid automatic repeat request re-allocation by sending from a Node B to a controlling node of a radio network a RADIO LINK PARAMETER UPDATE INDICATION message that comprises at least one of a hybrid automatic repeat request process allocation for 2 ms non-scheduled transmission GRANT information element and a hybrid automatic repeat request process allocation for 2 ms scheduled transmission GRANT information element indicating a value for hybrid automatic repeat request process re-allocation;

responsive to receiving from the controlling node one of a RADIO LINK RECONFIGURATION PREPARE message and a RADIO LINK RECONFIGURATION REQUEST message that contains the said at least one information element, sending to the controlling node one of a RADIO LINK RECONFIGURATION READY message and a RADIO LINK RECONFIGURATION RESPONSE message;

receiving from the controlling node a RADIO LINK RECONFIGURATION COMMIT message for the case of synchronized radio link reconfiguration;

re-allocating the hybrid automatic repeat request process according to the said RADIO LINK RECONFIGURATION PREPARE message or RADIO LINK RECONFIGURATION REQUEST message.

9. A system comprising a Node B coupled through a communication interface to a controlling node of a radio network, each of the Node B and the controlling node comprising embodied software and a processor configured to:

at the Node B;

send to the controlling node a RADIO LINK PARAMETER UPDATE INDICATION message that comprises at least one of a hybrid automatic repeat request process allocation for 2 ms non-scheduled transmission GRANT information element and a hybrid automatic repeat request process allocation for 2 ms scheduled transmission GRANT information element indicating a value for hybrid automatic repeat request process re-allocation;

responsive to receiving from the controlling node one of a RADIO LINK RECONFIGURATION PREPARE message and a RADIO LINK RECONFIGURATION REQUEST message, send to the controlling node one of a RADIO LINK RECONFIGURATION READY message and a RADIO LINK RECONFIGURATION RESPONSE message;

and at the controlling node;

responsive to receiving the PARAMETER UPDATE INDICATION, send to the Node B one of the RADIO LINK RECONFIGURATION PREPARE message and the RADIO LINK RECONFIGURATION REQUEST message that contains the said at least one information element;

responsive to receiving from the Node B one of the RADIO LINK RECONFIGURATION READY message and the RADIO LINKL RECONFIGURATION RESPONSE message, sending to the Node B a RADIO LINK RECONFIGURATION COMMIT message for the case of synchronized radio link reconfiguration.

10. A method comprising:

sending from a drift radio network controller to a second radio network controller a RADIO LINK PARAMETER UPDATE INDICATION message that comprises at least one of a hybrid automatic repeat request process allocation for 2 ms non-scheduled transmission GRANT information element and a hybrid automatic repeat request process allocation for 2 ms scheduled transmission GRANT information element, said at least one information element indicating a value for hybrid automatic repeat request process re-allocation;

receiving at the drift radio network controller from the second radio network controller one of a RADIO LINK RECONFIGURATION PREPARE message and a RADIO LINK RECONFIGURATION REQUEST message that contains the said at least one information element;

responsive to receiving the RADIO LINK RECONFIGURATION PREPARE message or the RADIO LINK RECONFIGURATION REQUEST message, sending from the drift radio network controller to the second radio network controller a RADIO LINK RECONFIGURATION READY message or a RADIO LINK RECONFIGURATION RESPONSE message;

receiving at the drift radio network controller from the second radio network controller a RADIO LINK RECONFIGURATION COMMIT message for the case of synchronized radio link reconfiguration.

11. An apparatus comprising a program of computer instructions embodied in a local memory, a processor, and a communications interface configured to communicate with a network element, wherein the program is arranged to cause the processor to:

send to the network element via the interface a RADIO LINK PARAMETER UPDATE INDICATION message that comprises at least one of a hybrid automatic repeat request process allocation for 2 ms non-scheduled transmission GRANT information element and a hybrid automatic repeat request process allocation for 2 ms scheduled transmission GRANT information element, said at least one information element indicating a value for hybrid automatic repeat request process re-allocation;

receive via the interface from the network element one of a RADIO LINK RECONFIGURATION PREPARE message and a RADIO LINK RECONFIGURATION REQUEST message that contains the said at least one information element; and

thereafter

send to the network element a RADIO LINK RECONFIGURATION READY message or a RADIO LINK RECONFIGURATION RESPONSE message, and to receive from the network element a RADIO LINK RECONFIGURATION COMMIT message for the case of synchronized radio link reconfiguration.

12. The apparatus of claim 11, wherein the apparatus comprises a drift controller of a radio network.

14. An apparatus comprising a program of computer instructions embodied in a local memory, a processor, and a communications interface, wherein the program when executed on the processor causes the apparatus to perform at least the following:

initiating at a Node B a hybrid automatic repeat request re-allocation by sending from the Node B to a serving radio network controller a RADIO LINK PARAMETER UPDATE INDICATION message that comprises at least one of a hybrid automatic repeat request process allocation for 2 ms non-scheduled transmission GRANT information element and a hybrid automatic repeat request process allocation for 2 ms scheduled transmission GRANT information element, said at least one information element indicating a value for hybrid automatic repeat request process re-allocation;

receiving at the Node B from the serving radio network controller one of a RADIO LINK RECONFIGURATION PREPARE message or a RADIO LINK RECONFIGURATION REQUEST message that contains the said at least one information element;

responsive to receiving the RADIO LINK RECONFIGURATION PREPARE message or the RADIO LINK RECONFIGURATION REQUEST message, sending from the Node B to the serving radio network controller a RADIO LINK RECONFIGURATION READY message or a RADIO LINK RECONFIGURATION RESPONSE message;

receiving at the Node B from the serving radio network controller a RADIO LINK RECONFIGURATION COMMIT message for the case of synchronized radio link reconfiguration; and

re-allocating the hybrid automatic repeat request process according to the received RADIO LINK RECONFIGURATION PREPARE message or the received RADIO LINK RECONFIGURATION REQUEST message.

15. The apparatus of claim 14, wherein:

RADIO LINK PARAMETER UPDATE INDICATION message;

the RADIO LINK RECONFIGURATION PREPARE or REQUEST message;

the RADIO LINK RECONFIGURATION READY or RESPONSE message; and

the RADIO LINK RECONFIGURATION COMMIT message;

each comprises at least one of Node B Application Part NBAP message or a Radio Node Subsystem Application Part message.

16. An apparatus comprising a program of computer instructions embodied in a local memory, a processor, and a communications interface, wherein the program when executed on the processor causes the apparatus to perform at least the following:

receiving from a Node B a RADIO LINK PARAMETER UPDATE INDICATION message that comprises at least one of a hybrid automatic repeat request process allocation for 2 ms non-scheduled transmission GRANT information element and a hybrid automatic repeat request process allocation for 2 ms scheduled transmission GRANT information element, said at least one information element indicating a value for hybrid automatic repeat request process re-allocation;

responsive to receiving the RADIO LINK PARAMETER UPDATE INDICATION message, sending to the Node B one of a RADIO LINK RECONFIGURATION PREPARE message and a RADIO LINK RECONFIGURATION REQUEST message that contains the said at least one information element; and

thereafter

responsive to receiving from the Node B one of a RADIO LINK RECONFIGURATION READY message or a RADIO LINK RECONFIGURATION RESPONSE message, sending to the Node B a RADIO LINK RECONFIGURATION COMMIT message for the case of synchronized radio link reconfiguration.

17. The apparatus of claim 16, wherein:

RADIO LINK PARAMETER UPDATE INDICATION message;

the RADIO LINK RECONFIGURATION PREPARE or REQUEST message;

the RADIO LINK RECONFIGURATION READY or RESPONSE message; and

the RADIO LINK RECONFIGURATION COMMIT message;

each comprises at least one of Node B Application Part NBAP message or a Radio Node Subsystem Application Part message.

18. The apparatus of claim 16, wherein:

sending to the Node B one of a RADIO LINK RECONFIGURATION PREPARE message and a RADIO LINK RECONFIGURATION REQUEST message further comprises sending that message to all Node B'"'"'s involved in the handover;

and wherein sending to the Node B a RADIO LINK RECONFIGURATION COMMIT message comprises, responsive to receiving from all Node B'"'"'s involved in the handover a RADIO LINK RECONFIGURATION READY message or a RADIO LINK RECONFIGURATION RESPONSE message, comprises sending to all Node B'"'"'s involved in the handover the RADIO LINK RECONFIGURATION COMMIT message for the case of synchronized radio link reconfiguration.

19. An information bearing medium storing a program of machine-readable instructions, executable by a digital data processor, to perform actions directed toward re-allocating a hybrid automatic repeat request process, the actions comprising:

initiating at a Node B a hybrid automatic repeat request re-allocation by sending from the Node B to a serving radio network controller a RADIO LINK PARAMETER UPDATE INDICATION message that comprises at least one of a hybrid automatic repeat request process allocation for 2 ms non-scheduled transmission GRANT information element and a hybrid automatic repeat request process allocation for 2 ms scheduled transmission GRANT information element, said at least one information element indicating a value for hybrid automatic repeat request process re-allocation;

receiving at the Node B from the serving radio network controller one of a RADIO LINK RECONFIGURATION PREPARE message or a RADIO LINK RECONFIGURATION REQUEST message that contains the said at least one information element;

responsive to receiving the RADIO LINK RECONFIGURATION PREPARE message or the RADIO LINK RECONFIGURATION REQUEST message, sending from the Node B to the serving radio network controller a RADIO LINK RECONFIGURATION READY message or a RADIO LINK RECONFIGURATION RESPONSE message;

receiving at the Node B from the serving radio network controller a RADIO LINK RECONFIGURATION COMMIT message for the case of synchronized radio link reconfiguration; and

re-allocating the hybrid automatic repeat request process according to the received RADIO LINK RECONFIGURATION PREPARE message or the received RADIO LINK RECONFIGURATION REQUEST message.

20. The medium of claim 19, wherein:

RADIO LINK PARAMETER UPDATE INDICATION message;

the RADIO LINK RECONFIGURATION PREPARE or REQUEST message;

the RADIO LINK RECONFIGURATION READY or RESPONSE message; and

the RADIO LINK RECONFIGURATION COMMIT message;

each comprises at least one of Node B Application Part NBAP message or a Radio Node Subsystem Application Part message.