Method and apparatus for congestion control in location updating

• US 8,326,306 B2
• Filed: 05/16/2011
• Issued: 12/04/2012
• Est. Priority Date: 11/17/2008
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Zhao, Hongxia
• Primary Examiner(s): FARAGALLA, MICHAEL A
• Application Number:
  US13/108,697
• Publication Number:
  US 20110217982A1
• Time in Patent Office: 568 Days
• Field of Search: 455/438, 4554561-4566, 455/406, 455/433, 455/437, 455/424, 370/338, 370/328, 370/252
• US Class Current: 455/438
• CPC Class Codes: H04W 60/04 using triggered events

Abstract

A method, an apparatus and a system for congestion control in location updating are provided. The method includes: setting location updating congestion control information according to network circumstances (s101); and sending the location updating congestion control information to a terminal so as to implement, by the terminal, the congestion control in location updating according to the location updating congestion control information (s102). By the method, it can be effectively controlled whether the terminal initiates the location updating immediately or initiates the location updating with delay in intercell handover, so as to effectively smooth the system bandwidth required in the location updating, reduce the system call loss, and increase the terminal location updating efficiency and wireless resource utilization ratio.

Claims

1. A method for congestion control in location updating, comprising:

setting, by a network side device, location updating congestion control information according to network circumstances, wherein the location updating congestion control information is used by a terminal to obtain a second delay time value by using a preset time parameter algorithm according to the location updating congestion control information; and

sending, by the network side device, the location updating congestion control information to the terminal so as to detect, by the terminal, whether a location registration area of the terminal changes; and

if a detection result is that the location registration area changes, count time by the terminal and send, by the terminal, a location updating request to the network side device after counted time reaches the second delay time value;

wherein the location updating congestion control information comprises congestion degree information; and

wherein the process of obtaining a second delay time value by using a preset time parameter algorithm according to the location updating congestion control information comprises;

obtaining the second delay time value by using the preset time parameter algorithm according to the congestion degree information in the location updating congestion control information and a preset step size time parameter.

2. The method according to claim 1, wherein the step size time parameter is set based on average time for the terminal accessing a network.

7. The method according to claim 1, wherein the process of counting time by the terminal and sending the location updating request to the network side device after counted time reaches the second delay time value comprises:

counting the time by the terminal and detecting, by the terminal, whether a call is to be initiated by the terminal;

if a call to be initiated is detected during the time counting, stopping, by the terminal, the time counting and sending a location updating request to the network side device;

otherwise

if a call to be initiated is not detected during the time counting, sending, by the terminal, the location updating request to the network side device after the counted time reaches the second delay time value.

9. The method according to claim 1, wherein the location registration area is a location area, routing area, tracking area, or registration area.

3. A method for congestion control in location updating, comprising:

setting, by a network side device, location updating congestion control information according to network circumstances, wherein the location updating congestion control information is used by a terminal to obtain a second delay time value by using a preset time parameter algorithm according to the location updating congestion control information; and

sending, by the network side device, the location updating congestion control information to the terminal so as to detect, by the terminal, whether a location registration area of the terminal changes; and

if a detection result is that the location registration area changes, count time by the terminal and send, by the terminal, a location updating request to the network side device after counted time reaches the second delay time value;

wherein the location updating congestion control information comprises a first delay time value; and

wherein the process of obtaining a second delay time value by using a preset time parameter algorithm according to the location updating congestion control information comprises;

obtaining, by the terminal, the second delay time value by using the preset algorithm according to the first delay time value in the location updating congestion control information, wherein the first delay time value is set according to the network circumstances.

4. The method according to claim 3, wherein the first delay time value is set according to the network circumstances comprises:

the first delay time value is generated by the network side device according to the number of the terminals requiring the location updating and a location request access bandwidth parameter of the network side device.

5. The method according to claim 3, wherein the obtaining the second delay time value by using the preset algorithm according to the first delay time value comprises:

calculating the second delay time value according to an inherent priority of the terminal and the first delay time value.

6. The method according to claim 3, wherein the obtaining the second delay time value by using the preset algorithm according to the first delay time value comprises:

calculating the second delay time value according to a random number generated by the terminal and the first delay time value.

8. The method according to claim 3, wherein the first delay time value is greater than or equal to the second delay time value.

10. A terminal, for congestion control in location updating, comprising:

a receiving module, adapted to receive location updating congestion control information sent by a network side device, wherein the location updating congestion control information is set according to network circumstances;

a calculating module, adapted to obtain a second delay time value by using a preset algorithm according to the location updating congestion control information received by the receiving module;

a detecting module, adapted to detect whether a location registration area of the terminal changes;

a time counting and requesting module, adapted to count time and send a location updating request to the network side device after the counted time reaches the second delay time value calculated by the calculating module if a detection result is that the location registration area changes; and

a time parameter module, adapted to save a step size time parameter preset according to average time for accessing a network;

wherein the location updating congestion control information comprises congestion degree information;

wherein in a process of obtaining the second delay time value, the calculating module is adapted to obtain the second delay time value by using the preset time parameter algorithm according to the congestion degree information in the location updating congestion control information and the step size time parameter in the time parameter module.

13. The terminal according to claim 10, further comprising:

a delay request module, adapted to send a delay request to the network side device wherein the receiving module is adapted to receive the location updating congestion control information sent by the network side device according to the delay request.

14. The terminal according to claim 10, wherein the receiving module is adapted to receive the location updating congestion control information sent by the network side device by using cell broadcast.

15. The terminal according to claim 10, wherein the detecting module is further adapted to detect whether a call is to be initiated by the terminal after the time counting is begun;

and

if a call to be initiated is detected during the time counting, the time counting and requesting module stops the time counting and sends the location updating request to the network side device immediately;

otherwise

if a call to be initiated is not detected during the time counting, the time counting and requesting module sends the location updating request to the network side device after the counted time reaches the second delay time value.

11. A terminal, for congestion control in location updating, comprising:

a receiving module, adapted to receive location updating congestion control information sent by a network side device, wherein the location updating congestion control information is set according to network circumstances;

a calculating module, adapted to obtain a second delay time value by using a preset algorithm according to the location updating congestion control information received by the receiving module;

a detecting module, adapted to detect whether a location registration area of the terminal changes; and

a time counting and requesting module, adapted to count time and send a location updating request to the network side device after counted time reaches the second delay time value calculated by the calculating module if a detection result is that the location registration area changes;

wherein the location updating congestion control information comprises a first delay time value;

wherein in the process of obtaining the second delay time value, the calculating module is adapted to obtain the second delay time value by using the preset algorithm according to the first delay time value in the location updating congestion control information, wherein the first delay time value is set according to the network circumstances.

12. The terminal according to claim 11 wherein in the process of obtaining the second delay time value by using the preset algorithm according to the first delay time value in the location updating congestion control information, the calculating module is adapted to generate a random number and calculates the second delay time value according to the random number and the first delay time value.

19. The terminal according to claim 11 wherein in the process of obtaining the second delay time value by using the preset algorithm according to the first delay time value in the location updating congestion control information, the calculating module is adapted to calculate the second delay time value according to an inherent priority of the terminal and the first delay time value in the location updating congestion control information.

16. A network side device, for congestion control in location updating, comprising:

a setting module, adapted to set location updating congestion control information according to network circumstances, wherein the location updating congestion control information is used by a terminal to obtain a second delay time value by using a preset time parameter algorithm according to the location updating congestion control information; and

a sending module, adapted to send the location updating congestion control information set by the setting module to the terminal so as to detect, by the terminal, whether a location registration area of the terminal changes; and

if a detection result is that the location registration area changes, count time by the terminal and send, by the terminal, a location updating request to the network side device after counted time reaches the second delay time value;

wherein the location updating congestion control information comprises a first delay time value set according to the network circumstances; and

the setting modules assesses the network circumstances of the network side device to generate an empirical value of the first delay time value and set the first delay time value according to the empirical value.

17. A network side device, for congestion control in location updating, comprising:

a setting module, adapted to set location updating congestion control information according to network circumstances, wherein the location updating congestion control information is used by a terminal to obtain a second delay time value by using a preset time parameter algorithm according to the location updating congestion control information; and

a sending module, adapted to send the location updating congestion control information set by the setting module to the terminal so as to detect, by the terminal, whether a location registration area of the terminal changes; and

if a detection result is that the location registration area changes, count time by the terminal and send, by the terminal, a location updating request to the network side device after counted time reaches the second delay time value;

wherein the location updating congestion control information comprises a first delay time value; and

the setting module generates the first delay time value according to the number of the terminals requiring the location updating and a location request access bandwidth parameter of the network side device.

18. A network side device, for congestion control in location updating, comprising:

a setting module, adapted to set location updating congestion control information according to network circumstances, wherein the location updating congestion control information is used by a terminal to obtain a second delay time value by using a preset time parameter algorithm according to the location updating congestion control information; and

a sending module, adapted to send the location updating congestion control information set by the setting module to the terminal so as to detect, by the terminal, whether a location registration area of the terminal changes; and

if a detection result is that the location registration area changes, count time by the terminal and send, by the terminal, a location updating request to the network side device after counted time reaches the second delay time value;

wherein the location updating congestion control information comprises congestion degree information; and

the setting module sets the congestion degree information according to network congestion degree situations.