Method and system for allocating time slots for a common control channel

• US 20050207373A1
• Filed: 12/17/2004
• Published: 09/22/2005
• Est. Priority Date: 03/16/2004
• Status: Abandoned Application

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Marinier, Paul, Roy, Vincent
• Application Number:
  US11/016,027
• Publication Number:
  US 20050207373A1
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 16/02 Resource partitioning among network components, e.g. reuse partitioning
• CPC Class Codes: H04W 16/12 Fixed resource partitioning
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 28/16 Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
• CPC Class Codes: H04W 74/04 Scheduled access hybrid access H04W74/02
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A method and system for allocating a time slot to each of the base stations for a communication channel to each of a plurality of base stations in a wireless communication system is disclosed. In a wireless communication system, a coverage area of the system is divided into a plurality of cells and each cell is served by a base station. The system receives a list of base stations which need to be configured along with a list of time slots available to transmit the communication channel. A time slot for the communication channel is allocated to each of the base stations in the list based on interference measured at each of the base stations in the list.

Claims

1. In a wireless communication system where a coverage area of the system is divided by a plurality of cells and each cell is served by a base station, a method for dynamically allocating a time slot to each of the base stations for a common control physical channel (CCPCH) comprising:

(a) receiving as an input a list of base stations which need to be configured along with a list of time slots available to transmit the CCPCH; and

(b) automatically allocating a time slot for the CCPCH to each of the base stations in the list based on interference measured at each of the base stations in the list.

2. The method of claim 1 wherein the step (b) comprises:

(c) selecting a base station from the list of base stations;

(d) having the selected base station measure and report perceived interference in each time slot available for the selected base station;

(e) allocating a time slot with the lowest interference to the selected base station; and

(f) repeating steps (c)-(e) for the remaining base stations in the list of base stations.

3. The method of claim 1 wherein the CCPCH is a primary CCPCH.

4. The method of claim 1 wherein the CCPCH is a secondary CCPCH.

5. The method of claim 1 wherein the base stations in the list of base stations are ranked in accordance with geographical coordinates of the base station.

6. The method of claim 1 wherein the base stations in the list of base stations are ranked in accordance with the date of deployment of the base station.

7. A radio network controller (RNC) for allocating a time slot to a base station for a common control physical channel (CCPCH) in a wireless communication system where a coverage area of the system is divided by a plurality of cells and each cell is served by a base station, the RNC comprising:

means for receiving as an input a list of base stations which need to be configured along with a list of time slots available to transmit CCPCH; and

means for allocating a time slot for a CCPCH to each of the base stations in the list based on interference measured at each of the base stations in the list.

8. The RNC of claim 7 wherein the allocating means comprises:

means for selecting a base station from the list of base stations;

means for selecting a time slot among allowed time slots for each base station;

means for requesting a base station to measure and report interference perceived at each time slot allowed for each base station; and

means for allocating a time slot with lowest interference to each base station.

9. The RNC of claim 7 wherein the CCPCH is a primary CCPCH.

10. The RNC of claim 7 wherein the CCPCH is a secondary CCPCH.

11. The RNC of claim 7 wherein the base stations in the list of base stations are ranked in accordance with geographical coordinates of the base station.

12. The RNC of claim 7 wherein the base stations in the list of base stations are ranked in accordance with the date of deployment of the base station.

13. In a wireless communication system having a plurality of cells, each cell being served by a base station, a method for dynamically allocating a time slot to each of the base stations for a communication channel comprising:

(a) receiving a list of base stations which need to be configured;

(b) receiving a list of time slots available to transmit the communication channel; and

(c) automatically allocating a time slot for the communication channel to each of the base stations in the list based on interference measured at each of the base stations in the list.

14. The method of claim 13 wherein the step (c) comprises:

(d) selecting a base station from the list of base stations;

(e) having the selected base station measure and report perceived interference in each time slot available for the selected base station;

(f) allocating a time slot with the lowest interference to the selected base station; and

(g) repeating steps (d)-(f) for the remaining base stations in the list of base stations.

15. The method of claim 13 wherein the base stations in the list of base stations are ranked in accordance with geographical coordinates of the base station.

16. The method of claim 13 wherein the base stations in the list of base stations are ranked in accordance with the date of deployment of the base station.