Method for uplink bandwidth request and allocation based on a quality of service class in a broadband wireless access communication system

• US 20050063330A1
• Filed: 09/20/2004
• Published: 03/24/2005
• Est. Priority Date: 09/20/2003
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Koo, Chang-Hol, Lee, Sung-Jin, Son, Yeong-Moon, Kim, So-Hyun, Kang, Hyun-Jeong, Son, Jung-Je
• Application Number:
  US10/945,460
• Publication Number:
  US 20050063330A1
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04W 28/24 Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
• CPC Class Codes: H04W 4/00 Services specially adapted for wireless communication networks; Facilities therefor
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/543 based on requested quality, e.g. QoS
• CPC Class Codes: H04W 74/00 Wireless channel access

Abstract

A bandwidth allocation method for an uplink data transmission between a mobile subscriber station and a base station in a broadband wireless access communication system. The method includes inserting type information of a service requested by the mobile subscriber station into the access channel signal and transmitting the access channel signal to the base station, receiving uplink scheduling information according to the type of the service requested by the mobile subscriber station from the base station, and transmitting data using a transmission bandwidth allocated according to the uplink scheduling information.

Claims

1. A method of receiving a transmission bandwidth for data to be transmitted by a mobile subscriber station according to types of services requested by the mobile subscriber station in the mobile subscriber station in a broadband wireless access communication system in which a plurality of mobile subscriber stations request bandwidth allocation to a base station through a predetermined access channel signal, the method comprising the steps of:

inserting type information of a service requested by the mobile subscriber station into the predetermined access channel signal;

transmitting the predetermined access channel signal to the base station;

receiving uplink scheduling information according to the type of the service requested by the mobile subscriber station from the base station; and

transmitting data using a transmission bandwidth allocated according to the uplink scheduling information.

2. The method as claimed in claim 1, wherein, the type of the service includes at least one of an unsolicited guaranteed service, a realtime packet service, a non-realtime packet service, and a best effort service.

3. The method as claimed in claim 2, wherein, when the service requested by the mobile subscriber station is the unsolicited guaranteed service, the method further comprises the steps of:

inserting information for indicating that the type of the service requested by the mobile subscriber station is the unsolicited guaranteed service in the predetermined access channel signal;

transmitting the predetermined access channel signal to the base station;

receiving a response signal to the transmitted predetermined access channel signal from the base station; and

transmitting data using an allocated transmission bandwidth, when the transmission bandwidth requested by the mobile subscriber station is allocated through the response signal.

4. The method as claimed in claim 3, wherein the predetermined access channel signal transmitted from the mobile subscriber station further includes size information of the bandwidth, which the mobile subscriber station desires to be allocated.

5. The method as claimed in claim 3, wherein the predetermined access channel signal transmitted from the mobile subscriber station further includes allocation interval information of the bandwidth, which the mobile subscriber station desires to be allocated.

6. The method as claimed in claim 3, wherein, when the response signal includes rejection information of the service requested by the mobile subscriber station, the method further comprises the steps of:

identifying a dedicated orthogonal code included in the response signal; and

attempting fast access of a contention-free scheme to the base station using the dedicated orthogonal code.

7. The method as claimed in claim 3, wherein the mobile subscriber station is continuously and dedicatedly allocated the requested bandwidth from the base station at every predetermined period according to the request of the service.

8. The method as claimed in claim 2, wherein, when the service requested by the mobile subscriber station is the realtime packet service, the method further comprises the steps of:

inserting information indicating that the type of the service requested by the mobile subscriber station is the realtime packet service in the predetermined access channel signal;

transmitting the predetermined access channel signal to the base station;

receiving a response signal to the transmitted predetermined access channel signal from the base station;

creating a bandwidth request message, when the response signal includes a dedicated orthogonal code;

transmitting the bandwidth request message to the base station through the dedicated orthogonal code;

receiving a requested transmission bandwidth allocated from the base station; and

transmitting data through the allocated transmission bandwidth.

9. The method as claimed in claim 8, wherein the predetermined access channel signal transmitted from the mobile subscriber station further includes transmission interval information of the bandwidth, which the mobile subscriber station desires to be allocated.

10. The method as claimed in claim 8, wherein, when the response signal includes rejection information of the service requested by the mobile subscriber station, the method further comprises the steps of:

identifying the dedicated orthogonal code included in the response signal; and

attempting fast access of a contention-free scheme to the base station using the dedicated orthogonal code.

11. The method as claimed in claim 8, wherein, the mobile subscriber station repeatedly requests a bandwidth to the base station using a pre-allocated dedicated orthogonal code at every predetermined period of time only when there is a size difference between data to be transmitted in a current transmission section and data transmitted in a previous transmission section, such that the mobile subscriber station is allocated the requested bandwidth in realtime.

12. The method as claimed in claim 11, wherein information of the bandwidth request performed at every predetermined period of time includes size difference information between the data to be transmitted in the current transmission section and the data transmitted in the previous transmission section.

13. The method as claimed in claim 2, wherein, when the service requested by the mobile subscriber station is the non-realtime packet service, the method further comprises the steps of:

inserting information indicating that the type of the service requested by the mobile subscriber station is the non-realtime packet service in the predetermined access channel signal;

transmitting the predetermined access channel signal to the base station;

receiving a response signal to the transmitted predetermined access channel signal from the base station;

creating a bandwidth request message when the response signal includes a dedicated orthogonal code;

transmitting the bandwidth request message to the base station through the dedicated orthogonal code;

receiving a requested transmission bandwidth allocated from the base station; and

transmitting data through the allocated transmission bandwidth.

14. The method as claimed in claim 13, wherein the mobile subscriber station re-transmits the bandwidth request message to the base station when the response signal includes rejection information of the service requested by the mobile subscriber station.

15. The method as claimed in claim 2, wherein, when the service requested by the mobile subscriber station is the best effort service, the method further comprises the steps of:

transmitting bandwidth request information to the base station through the predetermined access channel signal;

receiving a bandwidth allocation information from the base station; and

transmitting data to the base station using the transmission bandwidth allocated from the base station.

16. A method of receiving a transmission bandwidth for data to be transmitted by a mobile subscriber station according to types of services requested by the mobile subscriber station in a broadband wireless access communication system in which a plurality of mobile subscriber stations request bandwidth allocation to a base station through a predetermined access channel signal, the method comprising the steps of:

inserting information indicating that the type of the service requested by the mobile subscriber station is an unsolicited guaranteed service in the predetermined access channel signal;

transmitting the predetermined access channel signal to the base station;

receiving a response signal to the transmitted predetermined access channel signal from the base station; and

transmitting data using the allocated transmission bandwidth when the transmission bandwidth requested by the mobile subscriber station is allocated through the response signal.

17. The method as claimed in claim 16, wherein the access channel signal transmitted from the mobile subscriber station further includes size information of the bandwidth that the mobile subscriber station desires to be allocated.

18. The method as claimed in claim 16, wherein the predetermined access channel signal transmitted from the mobile subscriber station further includes allocation interval information of the bandwidth that the mobile subscriber station desires to be allocated.

19. The method as claimed in claim 16, wherein, when the response signal includes rejection information of the service requested by the mobile subscriber station, the method further comprises the steps of:

identifying a dedicated orthogonal code included in the response signal; and

attempting fast access of a contention-free scheme to the base station using the dedicated orthogonal code.

20. The method as claimed in claim 16, wherein the mobile subscriber station is continuously and dedicatedly allocated the requested bandwidth from the base station at every predetermined allocation interval according to the request of the service.

21. A method of receiving a transmission bandwidth for data to be transmitted by a mobile subscriber station according to types of services requested by the mobile subscriber station in a broadband wireless access communication system in which a plurality of mobile subscriber stations request bandwidth allocation to a base station through a predetermined access channel signal, the method comprising the steps of:

inserting information indicating that the type of the service requested by the mobile subscriber station is a realtime packet service in the predetermined access channel signal;

transmitting the predetermined access channel signal to the base station;

receiving a response signal to the transmitted predetermined access channel signal from the base station;

creating a bandwidth request message when the response signal includes a dedicated orthogonal code;

transmitting the bandwidth request message to the base station through the dedicated orthogonal code;

receiving a requested transmission bandwidth allocated from the base station; and

transmitting data through the allocated transmission bandwidth.

22. The method as claimed in claim 21, wherein the access channel signal transmitted from the mobile subscriber station further includes transmission interval information of the bandwidth that the mobile subscriber station desires to be allocated.

23. The method as claimed in claim 21, wherein, when the response signal includes rejection information of the service requested by the mobile subscriber station, the method further comprises the steps of:

identifying the dedicated orthogonal code included in the response signal; and

attempting fast access of a contention-free scheme to the base station using the dedicated orthogonal code.

24. The method as claimed in claim 21, wherein, the mobile subscriber station repeatedly requests a bandwidth to the base station using a pre-allocated dedicated orthogonal code at every predetermined period of time only when there is a size difference between data to be transmitted in a current transmission section and data transmitted in a previous transmission section, such that the mobile subscriber station is allocated the requested bandwidth in realtime.

25. The method as claimed in claim 24, wherein information of the bandwidth request performed at every predetermined period of time includes size difference information between the data to be transmitted in the current transmission section and the data transmitted in the previous transmission section.

26. A method of receiving a transmission bandwidth for data to be transmitted by a mobile subscriber station according to types of services requested by the mobile subscriber station in a broadband wireless access communication system in which a plurality of mobile subscriber stations request bandwidth allocation to a base station through a predetermined access channel signal, the method comprising the steps of:

inserting information indicating that the type of the service requested by the mobile subscriber station is a non-realtime packet service in the predetermined access channel signal;

transmitting the predetermined access channel signal to the base station;

receiving a response signal to the transmitted predetermined access channel signal from the base station;

creating a bandwidth request message when the response signal includes a dedicated orthogonal code;

transmitting the bandwidth request message to the base station through the dedicated orthogonal code;

receiving a requested transmission bandwidth allocated from the base station; and

transmitting data through the allocated transmission bandwidth.

27. The method as claimed in claim 26, wherein the mobile subscriber station re-transmits the bandwidth request message to the base station when the response signal includes rejection information of the service requested by the mobile subscriber station.