Limiting channel element usage based on communication type

• US 7,684,808 B1
• Filed: 03/08/2006
• Issued: 03/23/2010
• Est. Priority Date: 03/08/2006
• Status: Expired due to Fees

• Current Assignee: Sprint Spectrum LP (Deutsche Telekom AG)
• Original Assignee: Sprint Spectrum LP (Deutsche Telekom AG)
• Inventors: Woleben, Samuel M., Barbee, Bryan T., Wilson, Scott B.
• Primary Examiner(s): GELIN, JEAN ALLAND
• Application Number:
  US11/370,692
• Time in Patent Office: 1,476 Days
• Field of Search: 455/422.1, 455/450, 455/451, 455/452.1, 455/455, 455/464, 455/509, 455/510, 370/329, 370/331, 370/328, 370/338
• US Class Current: 455/450
• CPC Class Codes: H04W 72/52 based on load
• CPC Class Codes: H04W 72/543 based on requested quality, e.g. QoS

Abstract

A method and apparatus for assigning channel elements in a radio access network (RAN) based on the type of the communication requiring a channel element. When the RAN receives a request to set up a communication of a particular type with an endpoint in a given wireless coverage area, the RAN responsively determines a proportion of the channel elements that are presently assigned to communications of the particular type. If the proportion does not exceed a predetermined threshold for communications of the particular type, the RAN may assign a channel element to the communication by transmitting the necessary signaling messages to the endpoint, one of which may include an identifier of the assigned channel element. The RAN may then determine and store an indication of the type of the communication being assigned the channel element by correlating signaling messages.

Claims

1. A method for assigning channel elements in a radio access network serving one or more endpoints in one or more given wireless coverage areas, the method comprising:

receiving a request to set up a communication of a particular type with an endpoint in a given wireless coverage area, wherein the request includes an indication of the particular type;

determining a proportion of the channel elements for the given wireless coverage area that are presently assigned to communications of the type indicated in the request;

assigning one of the channel elements for the given wireless coverage area to the communication if the proportion does not exceed a predetermined threshold for communications of the type indicated in the request; and

storing an indication of the type of the communication being assigned one of the channel elements for the given wireless coverage area.

2. The method of claim 1, wherein:

the request is received from a mobile positioning center;

the indicated type is a location query;

the endpoint is a mobile station; and

the predetermined threshold for location queries is five percent.

3. The method of claim 1, further comprising deleting the stored indication of the type of the communication if the communication no longer requires the channel element for the given wireless coverage area.

4. The method of claim 1, further comprising recording the indication of the particular type in data storage in response to receiving the request.

5. The method of claim 1, wherein the function of determining the proportion of the channel elements for the given wireless coverage area that are presently assigned to communications of the type indicated in the request occurs in response to receiving the request.

6. The method of claim 1, wherein the function of assigning one of the channel elements for the given wireless coverage area to the communication comprises:

generating a first signaling message indicating the request to set up the communication with the endpoint, wherein the first signaling message includes an indication of the type indicated in the request;

transmitting the first signaling message to the endpoint;

receiving a second signaling message from the endpoint indicating the availability of the endpoint;

generating a third signaling message indicating the identity of the channel element assigned to the communication; and

transmitting the third signaling message to the endpoint.

7. The method of claim 6, wherein the third signaling message does not include an indication of the type of the communication being assigned the channel element, and wherein the function of storing an indication of the type of the communication being assigned one of the channel elements for the given wireless coverage area comprises:

correlating the first signaling message with the third signaling message to determine the type of the communication being assigned the channel element; and

recording in data storage the identity of the assigned channel element and an indication of the type of the communication being assigned the channel element.

8. The method of claim 1, further comprising:

generating a first signaling message indicating the request to set up the communication with the endpoint in response to receiving the request, wherein the first signaling message includes an indication of the type indicated in the request;

transmitting the first signaling message to the endpoint in response to generating the first signaling message; and

receiving a second signaling message from the endpoint indicating the availability of the endpoint.

9. The method of claim 8, wherein the function of assigning one of the channel elements to the communication comprises:

generating a third signaling message indicating the identity of the channel element assigned to the communication; and

transmitting the third signaling message to the endpoint.

10. The method of claim 9, wherein the third signaling message does not include an indication of the type of the communication being assigned the channel element, and wherein the function of storing an indication of the type of the communication being assigned one of the channel elements for the given wireless coverage area comprises:

correlating the first signaling message with the third signaling message to determine the type of the communication being assigned the channel element; and

recording in data storage the identity of the assigned channel element and an indication of the type of the communication being assigned the channel element.

11. The method of claim 1, wherein the function of determining a proportion of the channel elements for the given wireless coverage area that are presently assigned to communications of the type indicated in the request comprises:

determining a first quantity of the total channel elements for the given wireless coverage area;

determining a second quantity of the channel elements for the wireless coverage area that are presently assigned to communications of the type indicated in the request; and

dividing the second quantity by the first quantity.

12. The method of claim 1, wherein the radio access network comprises:

a base station transceiver;

a base station controller;

a mobile switching center; and

a packet data serving node;

wherein the base station transceiver couples to the base station controller and wherein the base station controller couples to the mobile switching station and the packet data serving node.

13. A method for assigning channel elements in a radio access network serving one or more endpoints in one or more given wireless coverage areas, the method comprising:

receiving a request to set up a communication of a particular type with an endpoint in a given wireless coverage area, wherein the request includes an indication of the particular type;

determining a proportion of the channel elements presently assigned to the indicated communication type in response to receiving the request;

generating a first signaling message indicating the request to set up the communication with the endpoint in response to receiving the request, wherein the first signaling message includes an indication of the type indicated in the request;

transmitting the first signaling message to the endpoint in response to generating the first signaling message;

receiving a second signaling message from the endpoint indicating the availability of the endpoint;

generating a third signaling message indicating the identity of the channel element for the given wireless coverage area being assigned to the communication if the proportion does not exceed a predetermined threshold for communications of the type indicated in the request, wherein the third signaling message does not include an indication of the type of the communication being assigned the channel element;

correlating the first signaling message with the third signaling message to determine the type of the communication being assigned the channel element;

recording in data storage the identity of the assigned channel element and an indication of the type of the communication being assigned the channel element; and

transmitting the third signaling message to the endpoint.

14. A base transceiver station comprising:

an antenna structure for communicating with endpoints via an air-interface;

a base station controller interface for communicating with a base station controller;

a processor,

data storage; and

program instructions stored in the data storage and executable by the processor to carry out functions including;

receiving a request to set up a communication of a particular type with an endpoint in a given wireless coverage area, wherein the request includes an indication of the particular type;

determining a proportion of the channel elements for the given wireless coverage area that are presently assigned to communications of the type indicated in the request;

assigning one of the channel elements for the given wireless coverage area to the communication if the proportion does not exceed a predetermined threshold for communications of the type indicated in the request; and

storing an indication of the type of the communication being assigned one of the channel elements for the given wireless coverage area.

15. The BTS of claim 14, wherein the data storage contains signaling message data, channel element data, and communication type threshold data.

16. The BTS of claim 14, further comprising program instructions stored in the data storage and executable by the processor to carry out functions including:

transmitting signaling messages, via the antenna structure, to the endpoints;

receiving signaling messages, via the antenna structure, from the endpoints;

transmitting signaling messages, via the base station controller interface, to the base station controller; and

receiving signaling messages, via the base station controller interface, from the base station controller.

17. The BTS of claim 14, wherein the processor executes the program instructions for carrying out the function of assigning one of the channel elements for the given wireless coverage area to the communication in response to receiving a signaling message from the endpoint indicating the availability of the endpoint.

18. The BTS of claim 14, further comprising program instructions stored in the data storage and executable by the processor to carry out carry out functions including:

determining information relating to a received signaling message; and

storing the information in data storage.

19. The BTS of claim 18, wherein the information stored in data storage includes the received signaling message.

20. The BTS of claim 14, further comprising program instructions stored in the data storage and executable by the processor to carry out a function of correlating a first received signaling message with a second received signaling message, wherein the first received signaling message includes an indication of the type of the communication requiring a channel element and the second received signaling message does not include an indication of the type of the communication requiring a channel element.