Wireless network and mobile stations for implementing variable bandwidth service on demand

• US 8,125,946 B2
• Filed: 08/27/2004
• Issued: 02/28/2012
• Est. Priority Date: 05/21/2004
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Csapo, John S.
• Primary Examiner(s): Moe, Aung S
• Assistant Examiner(s): ROSE, KERRI M
• Application Number:
  US10/928,584
• Publication Number:
  US 20050259684A1
• Time in Patent Office: 2,741 Days
• Field of Search: 370/310, 370/319, 370/329, 370/343, 370/344, 370/349, 370/468, 370/480, 455/450, 455/452.1, 455/452.2, 455/509
• US Class Current: 370/329
• CPC Class Codes: H04B 7/2634 for channel frequency control
• CPC Class Codes: H04W 28/20 Negotiating bandwidth

Abstract

A variable bandwidth controller for use in a wireless network comprising base stations capable of operating on N carriers. The variable bandwidth controller determines a receiver capability of a first mobile station and, in response to the determination, assigns the first mobile station to operate on at least a first carrier and a second carrier. The variable bandwidth controller determines the receiver capability of the first mobile station based on a message received from the first mobile station. The variable bandwidth controller assigns the mobile station to operate on the first carrier during normal data traffic conditions and assigns the mobile station to operate on the second carrier during peak data traffic conditions.

Claims

1. For use in a wireless network comprising a plurality of base stations operating on at least two carriers, a variable bandwidth controller configured to operate in said network and further configured to:

determine a receiver capability of a variable-bandwidth first mobile station operating within said network; and

in response to said determination, assign said first mobile station to operate on at least a first carrier and a second carrier for at least one specified channel among a plurality of channels with dissimilar bandwidths, the specified channel comprising one of a forward channel and a reverse channel,

wherein a selection of the at least one specified channel is determined by a bandwidth required by the first mobile station based upon an application executed on the first mobile station as detected by at least one of the plurality of base stations, and

wherein the determination of the receiver capability of the variable-bandwidth first mobile station comprises determining whether the first mobile station is capable of receiving on more than one carrier.

2. The variable bandwidth controller as set forth in claim 1, wherein said variable bandwidth controller is configured to determine said receiver capability of said first mobile station based on a message received from said first mobile station.

3. The variable bandwidth controller as set forth in claim 2, wherein said message is a control message in said network.

4. The variable bandwidth controller as set forth in claim 1, wherein said variable bandwidth controller is configured to assign said mobile station to operate on said first carrier during normal data traffic conditions and assign said mobile station to operate on said second carrier during peak data traffic conditions.

5. The variable bandwidth controller as set forth in claim 4, wherein said variable bandwidth controller is configured to dynamically assign said first mobile station to operate on said second carrier based on changes in traffic demand.

6. The variable bandwidth controller as set forth in claim 5, wherein said variable bandwidth controller is configured to assign said first mobile station to operate on said second carrier in response to a determination by said variable bandwidth controller that said first mobile station requires additional bandwidth in a forward channel.

7. The variable bandwidth controller as set forth in claim 5, wherein said variable bandwidth controller is configured to assign said first mobile station to operate on said second carrier in response to a request from said first mobile station for additional bandwidth in a forward channel.

8. The variable bandwidth controller as set forth in claim 7, wherein said variable bandwidth controller is disposed in a base station controller of a first base station.

9. An IS-2000 compatible wireless network comprising:

a plurality of base stations configured to communicate on at least two carriers with a plurality of mobile stations in a coverage area of said IS-2000 compatible wireless network; and

a variable bandwidth controller configured to;

determine a receiver capability of a variable-bandwidth first mobile station operating within said IS-2000 compatible network, and

in response to said determination, assign said first mobile station to operate on at least a first carrier and a second carrier for at least one specified channel, the specified channel comprising one of a forward channel and a reverse channel, and

wherein a selection of the at least one specified channel is based upon a application executed on the first mobile station as detected by at least one of the plurality of base stations.

10. The wireless network as set forth in claim 9, wherein said variable bandwidth controller is configured to determine said receiver capability of said first mobile station based on a message received from said first mobile station.

11. The wireless network as set forth in claim 10, wherein said message is a control message in said IS-2000 compatible network.

12. The wireless network as set forth in claim 9, wherein said variable bandwidth controller is configured to assign said mobile station to operate on said first carrier during normal data traffic conditions and assign said mobile station to operate on said second carrier during peak data traffic conditions.

13. The wireless network as set forth in claim 12, wherein said variable bandwidth controller is configured to dynamically assign said first mobile station to operate on said second carrier based on changes in traffic demand.

14. The wireless network as set forth in claim 13, wherein said variable bandwidth controller is configured to assign said first mobile station to operate on said second carrier in response to a determination by said variable bandwidth controller that said first mobile station requires additional bandwidth in a forward channel.

15. The wireless network as set forth in claim 13, wherein said variable bandwidth controller is configured to assign said first mobile station to operate on said second carrier in response to a request from said first mobile station for additional bandwidth in a forward channel.

16. The wireless network as set forth in claim 15, wherein said variable bandwidth controller is disposed in a base station controller of a first base station.

17. A variable-bandwidth mobile station capable of communicating with a plurality of base stations of an IS-2000 compatible wireless network, said mobile station comprising:

a first receive path configured to receive data from a first of said plurality of base stations in said IS-2000 compatible wireless network on a first carrier; and

a second receive path configured to receive data from said first base station on a second carrier,

wherein said mobile station is configured to receive control messages from said first base station assigning said mobile station to receive data from said first base station on said first carrier during normal traffic conditions and assigning said mobile station to receive data from said first base station on said second carrier and first carrier for at least one specified channel among a plurality of channels with dissimilar bandwidths, the specified channel comprising one of a forward channel and a reverse channel, and

wherein a selection of the at least one specified channel is based upon an application executed on the mobile station as detected by at least one of the plurality of base stations.

18. The mobile station as set forth in claim 17, wherein said mobile station is configured to transmit a control message to said first base station identifying a receiver capability of said mobile station.

19. The mobile station as set forth in claim 18, wherein said first and second receive paths of said mobile station are configured to be dynamically assigned to operate on said first and second carriers based on changes in traffic demand.

20. The mobile station as set forth in claim 19, wherein said mobile station is configured to request that additional bandwidth in a forward channel be assigned to said first mobile station.

21. For use in an IS-2000 compatible wireless network comprising a plurality of base stations capable of operating on at least two carriers, a method of handling communications between a first of the plurality of base stations and a mobile station-comprising:

receiving in the first base station a control message identifying a type of the mobile station, the mobile station operating within the IS-2000 compatible network;

determining by the first base station a receiver capability and whether the first mobile station is capable of receiving on more than one carrier from the mobile station type; and

in response to the determination of the receiver capability, assigning the mobile station to operate on at least a first carrier and a second carrier for at least one specified channel, the specified channel comprising one of a forward channel and a reverse channel; and

determining a bandwidth required by the mobile station based upon a bandwidth message received from the mobile station, wherein a selection of the at least one specified channel is based upon an application executed on the mobile station as detected by at least one of the plurality of base stations.

22. The method as set forth in claim 21, further comprising modifying the assignment of the mobile station to the first and second carriers depending on changes in data traffic being transmitted to the mobile station.