HSDPA CQI, ACK, NACK power offset known in node B and in SRNC

• US 20030228876A1
• Filed: 05/08/2003
• Published: 12/11/2003
• Est. Priority Date: 05/09/2002
• Status: Active Grant

• Current Assignee: Zhigu Holdings Limited
• Original Assignee: Nokia Corporation
• Inventors: Hwang, Woonhee
• Granted Patent: US 7,343,172 B2
• Time in Patent Office: Days
• US Class Current: 455/522
• CPC Class Codes: H04L 1/0028 Formatting
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04W 52/16 Deriving transmission power values from another channel
• CPC Class Codes: H04W 52/262 taking into account adaptive modulation and coding [AMC] scheme AMC per se H04L1/0001
• CPC Class Codes: H04W 52/286 during data packet transmission, e.g. high speed packet access [HSPA]
• CPC Class Codes: H04W 52/48 during retransmission after error or non-acknowledgment
• CPC Class Codes: H04W 52/50 at the moment of starting communication in a multiple access environment
• CPC Class Codes: H04W 52/58 Format of the TPC bits
• CPC Class Codes: H04W 76/12 Setup of transport tunnels
• CPC Class Codes: H04W 92/12 between access points and access point controllers

Abstract

High speed data packet access (HSDPA) is facilitated by ensuring that power offsets are delivered to the base station (Node B) so that the new functions envisioned therefor having to do with scheduling and retransmission handling can be carried out effectively. A signal primitive having one or more information elements indicative of corresponding power offsets are received by the Node B, saved for future use and then signalled back to the serving radio network controller so that the user equipment can be informed with a proper RRC message containing the appropriate power offsets.

Claims

1. Method for execution in a radio access network (RAN), comprising the steps of:

receiving by a base station (Node B) of said RAN a radio link (RL) setup request signal from a serving radio network controller (S-RNC), said signal having one or more information elements (IEs) indicative of one or more corresponding power offsets (POs), and

saving said one or more POs in said Node B, and sending from said Node B an RL setup response signal to said S-RNC with IEs indicating receipt of said one or more POs from said S-RNC.

2. The method of claim 1, wherein said RL setup request signal includes a handover (HO) indication instead of said IEs and wherein said method further comprises the step of said Node B determining said one or more IEs and then carrying out said step of saving said one or more POs in said Node B and sending from said Node B an RL setup response signal to said S-RNC indicating said one or more POs determined by said Node B.

3. The method of claim 1, further comprising the steps of:

sending from said S-RNC said RL setup request signal to a drift radio network controller (D-RNC) associated with said Node B, and

sending said RL setup request signal from said D-RNC to said Node B.

4. The method of claim 3, further comprising the step of sending a radio resource controller (RRC) message signal from said S-RNC to a user equipment (UE) indicative of said one or more IEs sent to or received from said Node B.

5. The method of claim 4, wherein said RRC message signal is sent from said S-RNC to said UE .

6. The method of claim 1, further comprising the step of sending a radio resource controller (RRC) message signal from said S-RNC to a user equipment (UE) indicative of said one or more IEs sent to said Node B.

7. The method of claim 6, wherein said RRC message signal is sent from said S-RNC to said UE.

8. The method of claim 1, wherein said IEs include an IE indicative of power offset used in an uplink (UL) between a high speed dedicated physical control channel (HS-DPCCH) slot carrying hybrid automatic repeat request (H-ARQ) information and an associated dedicated physical control channel (DPCCH).

9. The method of claim 8, wherein said H-ARQ information is H-ARQ acknowledge (ACK) information.

10. The method of claim 1, wherein said IEs include an IE having a channel quality indicator (CQI) indicative of power offset used in an uplink (UL) between an HS-DPCCH slot carrying CQI information and said associated DPCCH.

11. The method of claim 3, further comprising the steps of:

receiving a RL reconfiguration prepare message signal according to a control plane protocol from said S-RNC at said Node B directly or via said D-RNC with changes to said one or more IEs,

changing one or more corresponding POs at said Node B, and

sending an RL reconfiguration ready message signal according to said control plane protocol from said Node B to said S-RNC directly or via said D-RNC.

12. The method of claim 11, further comprising the steps of:

sending from said S-RNC said RL reconfiguration prepare message signal to said Node B directly or via said D-RNC, and

sending an RRC message signal from said S-RNC to a user equipment (UE) indicative of said one or more IEs sent to said Node B.

13. The method of claim 3, further comprising the steps of:

receiving a radio interface parameter update signal according to a user plane protocol directly from said S-RNC at said Node B or via said D-RNC with changes to said one or more IEs, and

changing one or more corresponding POs at said Node B.

14. The method of claim 13, further comprising the steps of:

sending from said S-RNC said radio interface parameter update signal directly to said Node B or via said D-RNC, and

sending an RRC message signal from said S-RNC to a user equipment (UE) indicative of said update signal sent to said Node B.

27. A computer program product for at least temporary storage in a computer readable medium for executing the steps of claim 1.

15. Method, comprising the steps of:

sending a radio link (RL) setup request signal from a radio network subsystem application part from a serving radio network controller (S-RNC) to a radio network subsystem application part (RNSAP) of a drift radio network controller (D-RNC) using radio network layer signaling procedures (RNSAP) specified for use between two radio network controllers, said RL setup request signal including one or more information elements indicative of power offsets (PO) including at least one of a channel quality indicator (CQI) PO, an acknowledge (ACK) PO and a negative acknowledge (NACK) PO,

sending said radio link setup request signal from a Node B application part (NBAP) of said D-RNC to an NBAP of a Node B associated with said D-RNC for future use by said Node B,

sending a radio link setup response signal from said NBAP of said Node B to said NBAP of said D-RNC indicative of receipt of said RL setup request signal by said NBAP of said Node B,

sending said radio link setup response signal from said RNSAP of said D-RNC to said RNSAP of said S-RNC, and

sending a radio resource controller (RRC) message signal from said S-RNC to a user equipment indicative of said one or more information elements.

16. Apparatus for use in a radio access network (RAN), comprising:

an application part (514) of a base station (Node) of said RAN, responsive to a radio link (RL) setup request signal (510) received via a drift radio network controller (D-RNC) associated with said Node B or directly from a serving radio network controller (S-RNC), said signal having one or more information elements (IEs) indicative of one or more corresponding power offsets (POs); and

a memory (518) in said Node B for storing said one or more POs in said Node B, said application part for sending from said Node B an RL setup response signal to said S-RNC directly or via said D-RNC for indicating receipt of said one or more POs from said S-RNC.

17. The apparatus of claim 16, wherein said RL setup request signal includes a handover (HO) indication instead of said IEs and wherein said Node B includes means for determining said one or more POs and for storing said one or more POs in said memory and for sending an RL setup response signal to said S-RNC indicating said one or more Pos determined by said Node B.

18. The apparatus of claim 16, wherein said S-RNC is for sending a radio resource controller (RRC) message signal to a user equipment (UE) indicative of said one or more IEs sent to or received from said Node B.

19. The apparatus of claim 16, wherein said IEs include an IE indicative of power offset used in an uplink (UL) between a high speed dedicated physical control channel (HS-DPCCH) slot carrying hybrid automatic repeat request (H-ARQ) information and an associated dedicated physical control channel (DPCCH).

20. The apparatus of claim 19, wherein said H-ARQ information is H-ARQ acknowledge (ACK) information.

21. The method of claim 16, wherein said IEs include an IE having a channel quality indicator (CQI) indicative of power offset used in an uplink (UL) between an HS-DPCCH slot carrying CQI information and said associated DPCCH.

22. The apparatus of claim 16, wherein:

said Node B is responsive to a RL reconfiguration prepare message signal according to a control plane protocol from said S-RNC directly or via said D-RNC with changes to said one or more IEs, for changing one or more corresponding POs at said Node B, and for sending an RL reconfiguration ready message signal according to said control plane protocol from said Node B to said S-RNC directly or via said D-RNC.

23. The apparatus of claim 22, wherein said S-RNC is also for sending an RRC message signal to a user equipment (UE) indicative of said one or more IEs sent to said Node B.

24. The apparatus of claim 16, wherein a radio interface parameter update signal according to a user plane protocol is received from said S-RNC at said Node B directly or via said D-RNC with changes to said one or more IEs, and, in response thereto, said Node B changes one or more corresponding POs.

25. The apparatus of claim 24, wherein said S-RNC sends said radio interface parameter update signal to said Node B directly or via said D-RNC, and also sends an RRC message signal to a user equipment (UE) indicative of said update signal sent to said Node B.

26. System, comprising:

a serving radio network controller (S-RNC) for sending a radio link (RL) setup request signal from a radio network subsystem application part (RNSAP) thereof to

a RNSAP of a drift radio network controller (D-RNC) using radio network layer signaling procedures specified for use between two radio network controllers, said RL setup request signal including one or more information elements indicative of power offsets (PO) including at least one of a channel quality indicator (CQI) PO, an acknowledge (ACK) PO and a negative acknowledge (NACK) PO,

said D-RNC having a Node B application part (NBAP) for sending said radio link setup request signal to

an NBAP of a Node B associated with said D-RNC for future use by said Node B, wherein said NBAP of said Node B is for sending a radio link setup response signal to said NBAP of said D-RNC indicative of receipt of said RL setup request signal by said NBAP of said Node B, wherein said RNSAP of said D-RNC is for sending said radio link setup response signal to said RNSAP of said S-RNC via said RNSAP of said D-RNC, and

wherein said S-RNC is for sending a radio resource controller (RRC) message signal to a user equipment (UE) indicative of said one or more information elements.

28. A data structure including a plurality of primitives, each primitive for at least temporary storage in a computer-readable medium at a base station (Node B) and in a computer readable medium at a server (RNC) during transfer of said primitives over a network between the base station and the server, characterized in that

the data structure includes a radio link reconfiguration prepare primitive provided from said server to said base station including at least one power offset information element or at least a handover indication, and that in case said handover indication is provided to said base station, and that said data structure includes a radio link set up response primitive from said base station to said server with information elements indicating either said at least one power offset determined by said base station or indicating receipt by said base station of said at least one power offset from said server.