Method and relay station for aggregating service connection identifiers in IEEE802.16

• US 20070178880A1
• Filed: 01/12/2007
• Published: 08/02/2007
• Est. Priority Date: 01/27/2006
• Status: Active Grant

• Current Assignee: KDDI Corporation
• Original Assignee: KDDI Corporation
• Inventors: Izumikawa, Haruki, Kaneko, Shoji, Saito, Kenji
• Granted Patent: US 7,872,999 B2
• Time in Patent Office: Days
• US Class Current: 455/405
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: H04W 16/26 Cell enhancers or enhancement, e.g. for tunnels, building shadow
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 84/047 using dedicated repeater stations
• CPC Class Codes: H04W 92/04 Interfaces between hierarchically different network devices
• CPC Class Codes: H04W 92/16 Interfaces between hierarchically similar devices

Abstract

In a method and a RS (Relay Station) for aggregating service connection identifiers in IEEE 802.16, the RS receives 1st QoS from 1st MS (Mobile subscriber Station), and stores 1st SFID/CID between BS (Base Station)-RS corresponding to 2nd SFID/CID between the RS-MS in table information. The RS receives DSA-REQ including a QoS same as 1st QoS from 2nd MS, and sends DSC-REQ to the BS. Then, the RS receives DSC-RSP from the BS, assigns 3rd SFID/CID between the RS-MS, and stores 3rd SFID/CID corresponding to 1st SFID/CID in the table information. The RS sends DSA-RSP including 3rd SFID/CID to 2nd MS.

Claims

1. A method for aggregating service connection identifiers in IEEE 802.16, with a relay station for relaying data between a mobile subscriber station and a base station, said method comprising the steps of:

storing a first service connection identifier between the base station and the relay station corresponding to a second service connection identifier between the relay station and a mobile subscriber station in table information, for first service information required from the first mobile subscriber station,

receiving a service addition request including service information same as the first service information from a second mobile subscriber station,

sending a service change request to the base station in order to change the service information,

receiving a service change response from the base station,

assigning a third service connection identifier between the relay station and the mobile subscriber station,

storing the third service connection identifier corresponding to the first service connection identifier in the table information,

sending a service addition response including the third service connection identifier to the second mobile subscriber station, and

relaying data to translate the service connection identifier by using the first service connection identifier between the base station and the relay station, the second service connection identifier between the relay station and the first mobile subscriber station, and the third service connection identifier between the relay station and the second mobile subscriber station.

2. The method as claimed in claim 1, wherein steps preceding to the steps in claim 1 comprising:

receiving a service addition request including the first service information from the first mobile subscriber station,

sending the service addition request to the base station,

receiving a service addition response including the first service connection identifier from the base station,

assigning the second service connection identifier between the relay station and the mobile subscriber station,

storing the second service connection identifier corresponding to the first service connection identifier in the table information, and

sending the service addition response including the second service connection identifier to the first mobile subscriber station.

3. The method as claimed in claim 1, wherein the mobile subscriber station communicates with the base station directly,

receiving a service deletion request including the second or third service connection identifier from the first or second mobile subscriber station,

sending the service change request including the first service connection identifier to the base station in order to change the service information,

receiving the service change response from the base station, and

sending a service deletion response including the second or third service connection identifier to the second or third mobile subscriber station.

4. The method as claimed in claim 1, wherein the service connection identifier is a service flow identifier and a connection identifier.

5. A method for causing a computer implemented in the relay station to be executed as aggregating service connection identifiers in IEEE 802.16, the relay station for relaying data between a mobile subscriber station and a base station, said method comprising the steps of:

storing a first service connection identifier between the base station and the relay station corresponding to a second service connection identifier between the relay station and a mobile subscriber station in table information, for first service information required from the first mobile subscriber station,

receiving a service addition request including service information same as the first service information from a second mobile subscriber station,

sending a service change request to the base station in order to change the service information,

receiving a service change response from the base station,

assigning a third service connection identifier between the relay station and the mobile subscriber station,

storing the third service connection identifier corresponding to the first service connection identifier in the table information,

sending a service addition response including the third service connection identifier to the second mobile subscriber station, and

relaying data to translate the service connection identifier by using the first service connection identifier between the base station and the relay station, the second service connection identifier between the relay station and the first mobile subscriber station, and the third service connection identifier between the relay station and the second mobile subscriber station.

6. A relay station for aggregating service connection identifiers in IEEE 802.16, comprising:

means for storing table information, means for judging service information, means for assigning service connection identifiers, means for requesting service addition, means for requesting service change and means for relaying data,

the table information storing means, for service information required from the mobile subscriber station, storing a first service connection identifier between the base station and the relay station corresponding to a second service connection identifier between the relay station and the mobile subscriber station,

the service information judging means judging whether the service information is already registered in the table information storing means,

the service connection identifier assigning means assigning a service connection identifier between the relay station and the mobile subscriber station,

the service addition requesting means receiving a service addition request including the service information from the mobile subscriber station, then, if the service information judging means judges that the service information is already registered in the table information storing means, notifying a change of the service information to the service change requesting means,

the service change requesting means sending a service change request to the base station in order to change the service information, receiving a service change response from the base station, obtaining the third service connection identifier between the relay station and the mobile subscriber station from the service connection identifier assigning means, and storing the third service connection identifier in the table information, and

the data relaying means relaying data to translate the service connection identifier by using the first service connection identifier between the base station and the relay station, the second service connection identifier between the relay station and the first mobile subscriber station, and the third service connection identifier between the relay station and the second mobile subscriber station.

7. The relay station as claimed in claim 6, further comprising means for responding service addition;

wherein

the service addition requesting means receiving the service addition request including the service information from the mobile subscriber station, then, if the service information judging means judges that the service information is not registered in the table information storing means, notifying the judging to the service addition response means, and

the service addition responding means sending the service addition request to the base station based on the judge from the service addition requesting means, receiving the service addition response including the first service connection identifier from the base station, assigning the second service connection identifier between the relay station and the mobile subscriber station by using the service connection identifier assigning means, storing the second service connection identifier corresponding to the first service connection identifier in the table information storing means, and notifying the service addition requesting means to send the service addition response including the second service connection identifier to the mobile subscriber station.

8. The relay station as claimed in claim 6, further comprising means for requesting service deletion, wherein

the service deletion requesting means receiving a service deletion request including the service connection identifier from the mobile subscriber station, notifying a change of the service information to the service change requesting means, receiving the service change response from the base station by the service change requesting means, and sending the service deletion response including the service connection identifier to the mobile subscriber station.

9. The relay station as claimed in claim 6, wherein the service connection identifier is a service flow identifier and a connection identifier.