Radio resource allocation system for packet data service and allocation method thereof

• US 20060133403A1
• Filed: 10/27/2005
• Published: 06/22/2006
• Est. Priority Date: 12/17/2004
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Park, Hyeong-Jun, Chun, Sun-Sim, Cho, Dae-Soon, Yun, Byeong-Ho
• Granted Patent: US 7,519,037 B2
• Time in Patent Office: Days
• US Class Current: 370/431
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A system connected to a mobile station through a network and allocating a radio source to the mobile station for packet data service, the system including a base station connected to the mobile station through a wireless network, and having a physical layer connected to the mobile station through a wireless network and performing wireless access and a medium access control (MAC) layer performing service-specific resource allocation for the mobile station; and a control station having an upper layer connected to the base station through a wired network and receiving a result of service-specific resource allocation from the MAC layer, and performing as an interface between networks.

Claims

1. A system connected to a mobile station through a network and allocating a radio source to the mobile station for packet data service, the system comprising:

a base station connected to the mobile station through a wireless network, and having a physical layer for radio access to the mobile station and a medium access control (MAC) layer for allocating a service-specific resource to the mobile station when receiving a service-specific resource allocation request from the mobile station; and

a control station having an upper layer connected to the base station through a wired network and receiving a result of service-specific resource allocation from the MAC layer, and performing interface with networks.

2. The system of claim 1, wherein when the MAC layer receives a service-specific resource request from the mobile station, the MAC layer allocates a resource for the corresponding service when there is a resource left for the requested service.

3. The system of claim 2, wherein when the mobile station is located on a cell boundary, the MAC layer allocates a service-specific resource to the mobile station by using a predefined allocatable resource.

4. The system of claim 1, wherein the MAC layer manages a user based on a change in the service status of the user.

5. The system of claim 4, wherein the MAC layer identifies service for a user by using a medium access identifier (MAC ID) assigned during an authentication process of the mobile station and a status identifier mapped to the MAC ID.

6. The system of claim 5, wherein the status identifier includes a sleep identifier (ID) for the mobile station in the sleeping status, and a waiting ID for the mobile station in the waiting status.

7. The system of claim 2, wherein the MAC layer manages a user based on a change in the service status of the user.

8. The system of claim 7, wherein the MAC layer identifies service for a user by using a medium access identifier (MAC ID) assigned during an authentication process of the mobile station and a status identifier mapped to the MAC ID.

9. The system of claim 8, wherein the status identifier includes a sleep identifier (ID) for the mobile station in the sleeping status, and a waiting ID for the mobile station in the waiting status.

10. The system of claim 3, wherein the MAC layer manages a user based on a change in the service status of the user.

11. The system of claim 10, wherein the MAC layer identifies service for a user by using a medium access identifier (MAC ID) assigned during an authentication process of the mobile station and a status identifier mapped to the MAC ID.

12. The system of claim 11, wherein the status identifier includes a sleep identifier (ID) for the mobile station in the sleeping status, and a waiting ID for the mobile station in the waiting status.

13. A method for allocating radio sources for a packet data service in a radio resource allocation system comprising a base station having a medium access control (MAC) layer for allocating a radio source to a mobile station, and a control station connected to the base station, the method comprising:

a) the MAC layer receiving a service-specific resource request from the mobile station;

b) the MAC layer allocating a service-specific radio source to the mobile station in response to the request; and

c) the MAC layer reporting a result of the service-specific resource allocation performed in b) to the control station.

14. The method of claim 13, wherein in b), when there is a residual resource for the requested service, the residual resource is allocated to the corresponding service.

15. The method of claim 13, wherein b) comprises:

determining whether a resource is left for the requested service;

determining whether the mobile station is located on a cell boundary when the resource is left for the request service; and

allocating a resource from among predefined allocatable resources when the mobile station is located on the cell boundary, and allocating a resource from among allocatable resources when the mobile station is not located on the cell boundary.

16. The method of claim 13, wherein the MAC layer identifies a service for a user by using a MAC ID assigned during an authentication process of the mobile station and a status identifier mapped to the MAC ID.

17. The method of claim 16, wherein the status identifier comprises a sleep identifier for the mobile station in the sleeping status and a waiting identifier for the mobile station in the waiting status.