Efficient resource management for packet data services

• US 6,996,412 B2
• Filed: 07/16/2002
• Issued: 02/07/2006
• Est. Priority Date: 12/23/1999
• Status: Expired due to Term

• Current Assignee: Beijing Xiaomi Mobile Software Co., Ltd. (Xiaomi Corp.)
• Original Assignee: DENSO Corporation
• Inventors: Hunzinger, Jason F., Cheng, Mark W.
• Primary Examiner(s): Craver, Charles
• Application Number:
  US10/198,678
• Publication Number:
  US 20020183055A1
• Time in Patent Office: 1,302 Days
• Field of Search: 455/426, 455/418, 455/455, 455/466, 455/560, 455/561, 455450-4522, 455/453, 455/464, 455509-516, 370/225, 370229-234, 370/462
• US Class Current: 455/510
• CPC Class Codes: H04W 74/006 in the downlink, i.e. towards the terminal
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access

Abstract

The present invention is a system for distributing the reconnection attempts of multiple system users in a CDMA telephone system over a broad time window. The present invention allows either the base station or the mobile station to process data to determine an appropriate reconnect time. The data may include resource capability, priority, client connects pending, and timing and amount of data on pending connection requests. Using this data information, a more efficient reconnection scheme may be developed. The number of requests required to successfully connect can be reduced while increasing the utilization of resources and reducing the delay until connection. Under an intelligent reconnection scheme, the probability of system users attempting simultaneous reconnection is reduced, thus reducing the likelihood of reconnection collision.

Claims

1. A method of strategically managing the connection timing of multiple stations in a wireless communication system comprising:

receiving connection requests from a plurality of mobile stations;

collecting data regarding connection requests wherein the collected data comprises an expected duration of a connection;

determining one or more connection requests are denied;

calculating reconnection timing for the denied connection request based on the collected data; and

transmitting reconnection timing to the requesting units that sent the denied connection requests,

wherein the calculation of reconnection timing comprises determining a reconnection time for each requesting unit that minimizes contention.

2. The method of claim 1 wherein the collected data further comprises reconnection times previously transmitted.

3. The method of claim 1 wherein the calculation of reconnection timing further comprises providing for an expected number of new connection requests.

4. The method of claim 1 wherein the expected duration of a connection is received from a mobile station.

5. A method of strategically managing the reconnection timing in a wireless communication system comprising:

receiving connection requests from a plurality of mobile stations;

collecting data regarding connection requests wherein the collected data comprises an expected duration of a connection, and an expected reconnection attempt time;

determining one or more connection requests are denied;

calculating reconnection timing for the denied connection request based on the collected data; and

transmitting reconnection timing to the requesting units that sent the denied connection requests.

6. The method of claim 5 wherein determining one or more connection requests are denied comprises denying connection requests that would conflict with a reconnecting timing previously transmitted and for which the reconnection attempt has not yet occurred.

7. The method of claim 5, wherein the collected data further comprises an amount of connection requests.

8. A method of strategically managing the reconnection timing in a wireless communication system comprising:

receiving a connection request from a mobile station for a communication system resource that is currently not available;

determining a minimum set of requirements for the requested connection;

determining an available time when the requested communication system resource will be available and meet the minimum set of requirements;

calculating a reconnection time delay from the current time until the determined available time; and

transmitting a connection response to the mobile station wherein the connection response comprises the reconnection time delay.

9. The method of claim 8 wherein determining an available time further comprises determining a time that does not correspond to a second reconnection time transmitted to a second mobile station.

10. The method of claim 8 wherein determining an available time further comprises estimating an expected resource release time.

11. The method of claim 8 further comprising establishing a priority of refused connection attempts.

12. The method of claim 8 wherein determining an available time further comprises adding an expected connection duration to the available time based on reconnection timing transmitted to another mobile station.

13. The method of claim 8 wherein determining an available time further comprises estimating the availability of a resource based on expected release time of a connection.

14. The method of claim 8, wherein the calculating minimizes contention of reconnection requests.

15. The method of claim 8, wherein the connection request includes an amount of connection requests.