Method for managing resources differentially in partitioned service zone of cell in wireless mobile communication system

• US 20030125031A1
• Filed: 05/31/2002
• Published: 07/03/2003
• Est. Priority Date: 12/28/2001
• Status: Abandoned Application

• Current Assignee: Daewoo Educational Foundation
• Original Assignee: Daewoo Educational Foundation
• Inventors: Lee, Hyun Suk, Choi, Soon Jin, Sung Lim, Jae, Yun, Sung Yun, Kim, Ha Il
• Application Number:
  US10/159,362
• Publication Number:
  US 20030125031A1
• Time in Patent Office: Days
• US Class Current: 455/447
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 16/28 using beam steering
• CPC Class Codes: H04W 28/22 Negotiating communication rate
• CPC Class Codes: H04W 4/00 Services specially adapted for wireless communication networks; Facilities therefor
• CPC Class Codes: H04W 52/0212 managed by the network, e.g. network or access point is master and terminal is slave
• CPC Class Codes: H04W 52/267 taking into account the information rate
• CPC Class Codes: H04W 52/50 at the moment of starting communication in a multiple access environment
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method for managing resources in a wireless mobile communication system, wherein one cell is partitioned into a plurality of service zones where different services are provided, and the resources are allocated differentially to the partitioned service zones, thereby reducing interferences with neighbor cells and efficiently managing the resources. The resource management method comprises the first step of partitioning one cell into a plurality of service zones, the service zones being provided with different services from the system and proportional in number to types of the services, the second step of allowing a radio network controller allocating the resources to mobile stations, to determine which each of said mobile stations is located in any one of the service zones, and the third step of allowing the radio network controller to allocate the resources differentially to the mobile stations according to the determined service zones. In this manner, one cell is partitioned into a plurality of service zones provided with different services and system resources, such as a transmission rate and power, are allocated differentially to the partitioned service zones. Therefore, system performance and the using efficiency of radio resource can be increased and interferences with neighbor cells can be reduced.

Claims

1. A method for managing resources in a wireless mobile communication system, comprising the steps of:

a) partitioning one cell into a plurality of service zones, said service zones being provided with different services from said system and proportional in number to types of said services;

b) allowing a radio network controller allocating said resources to mobile stations, to determine which each of said mobile stations is located in any one of said service zones; and

c) allowing said radio network controller to allocate said resources differentially to said mobile stations according to the determined service zones.

2. The method as set forth in claim 1, wherein said step c) includes the step of providing at least one service occupying a small amount of resources to ones of said mobile stations located in any one of said service zones farther from a base transceiver station, and providing at least one service occupying a relatively large amount of resources, together with said service occupying the small amount of resources, to ones of said mobile stations located in any one of said service zones nearer to said base transceiver station.

7. The method as set forth in any one of claims 1 to 6, wherein said step a) includes the step of partitioning said service zones geographically on the basis of a position of an antenna of a base transceiver station corresponding to the cell.

8. The method as set forth in claim 7, wherein said step b) includes the step of calculating a distance to each of said mobile stations on the basis of pilot signal reception power of each of said mobile stations with respect to pilot signal transmission power from said base transceiver station and determining on the basis of the calculated distance which one of said service zones corresponds to each of said mobile stations.

9. The method as set forth in any one of claims 1 to 6, wherein said step b) includes the step of allowing a base transceiver station corresponding to the cell to transmit a pilot signal and service zone partitioning information to each of said mobile stations and allowing each of said mobile stations to receive said pilot signal and service zone partitioning information transmitted from said base transceiver station, compare the received pilot signal with the received service zone partitioning information, determine from the compared result which one of said service zones corresponds thereto, and notify said base transceiver station of the determined service zone.

10. The method as set forth in claim 9, wherein said service zone partitioning information includes zone partitioning information based on a reception signal-to-noise ratio of each of said mobile stations with respect to said pilot signal transmitted from said base transceiver station, and wherein said step b) includes the step of allowing each of said mobile stations to calculate said reception signal-to-noise ratio with respect to said pilot signal and determine on the basis of the calculated result which one of said service zones corresponds thereto.

11. The method as set forth in any one of claims 1 to 6, wherein said step b) includes the step of determining which each of said mobile stations is located in any one of said service zones, on the basis of strengths of signals transmitted from said mobile stations after synchronization with a base transceiver station corresponding to the cell.

13. The method as set forth in any one of claims 1 to 12, wherein said resources include at least one of a transmission rate, transmission power and a transmission variation rate.

14. The method as set forth in claim 13, wherein said step c) includes the step of allocating a relatively high value of said transmission rate, transmission power or transmission variation rate to ones of said mobile stations located in any one of said service zones nearer to said base transceiver station.

3. A method for managing resources in a wireless mobile communication system, comprising the steps of:

a) partitioning one cell into a handoff service zone and a non-handoff service zone;

b) allowing a radio network controller allocating said resources to mobile stations, to determine which each of said mobile stations is located in any one of said service zones; and

c) allowing said radio network controller to allocate said resources differentially to said mobile stations according to the determined service zones.

4. The method as set forth in claim 3, wherein said step c) includes the step of allocating a relatively large amount of resources to ones of said mobile stations located in said non-handoff service zone nearer to a base transceiver station.

5. A method for managing resources in a wireless mobile communication system, comprising the steps of:

a) partitioning one cell into a plurality of service zones;

b) allowing a radio network controller allocating said resources to mobile stations, to determine which each of said mobile stations is located in any one of said service zones; and

c) allowing said radio network controller to allocate packet transmission priorities differentially to said mobile stations according to the determined service zones.

6. The method as set forth in claim 5, wherein said step c) includes the step of allocating a relatively high packet transmission priority to ones of said mobile stations located in any one of said service zones nearer to a base transceiver station.

12. A method for managing resources in a wireless mobile communication system, comprising the steps of:

a) partitioning one cell into a plurality of service zones;

b) allowing a radio network controller allocating said resources to mobile stations, to determine which each of said mobile stations is located in any one of said service zones; and

c) allowing said radio network controller to allocate said resources and packet transmission priorities differentially to said mobile stations according to the determined service zones.

15. A method for performing access by mobile stations in one cell, comprising the steps of:

a) partitioning said cell into a plurality of service zones;

b) determining which each of said mobile stations is located in any one of said service zones; and

c) allowing each of said mobile stations to determine initial access preamble signal power on the basis of associated service zone information and try randomly the access to a radio network controller with the determined initial access preamble signal power.