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Location update method under the idle mode

An update method, technology in idle mode

Inactive Publication Date: 2009-07-22
李桂平
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, this method cannot avoid the "ping-pong effect" generated by the terminal during the mobile process, that is, the terminal returns again after leaving the paging area to which a certain base station belongs. At this time, the base station has deleted the reserved security context information of the terminal. Therefore, it is necessary to request the security context information of the terminal from the paging controller or authenticator (Authenticator) on the network side again

Method used

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  • Location update method under the idle mode
  • Location update method under the idle mode
  • Location update method under the idle mode

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Embodiment Construction

[0024] An existing 802.16e system's paging area division and idle mode terminal mobility procedures are as follows: figure 1 shown. 1 and 2 are base stations, 3 is a terminal, 5 and 6 are paging areas where base stations 1 and 2 are located, and 4 is a moving route of a terminal in idle mode. The first and second location updates occur between the terminal and base station 1, then the terminal may leave the paging area where base station 1 is located and enter the paging area where base station 2 is located, and complete the third location update with base station 2, Then the terminal enters the paging area where the base station 1 is located again, and completes the fourth location update process with the base station 1 .

[0025] The existing 802.16e system idle mode location update process is as follows: figure 2 As shown, the terminal first sends a ranging request message (RNG-REQ) to base station 1 to request location update, and base station 1 sends a location update ...

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Abstract

The invention discloses a location update method in an idle mode, relates to an arrangement for mobile service area coverage, and is invented to solve the problem in the prior art that a "ping-pong effect" will occur and cause more message interactions between a base station and a network side. The present invention includes: setting a timer for the base station; when the base station receives the security context information corresponding to the terminal, caches the security context information and sets a corresponding timer; when the timer expires, deletes the security context information The security context information cached by the base station. The invention proposes a location update method in idle mode, which can avoid invalid message interaction with the local paging controller, save message bandwidth, accelerate the location update process, and avoid "ping-pong effect".

Description

technical field [0001] The invention relates to an arrangement for mobile service area coverage, in particular to a location update method in an idle mode. Background technique [0002] The 802.16e standard is a fixed and mobile broadband wireless access standard formulated by the IEEE standard organization. Compared with the 802.16d standard, due to the increased support for mobility, it is necessary to adopt some technologies that can save power for the terminal, such as: sleep mode (Sleep mode) Mode) and idle mode (Idle Mode), wherein the idle mode can save the energy consumption of the terminal more than the sleep mode, and increase its standby and use time. After entering the idle mode, the terminal only periodically receives downlink broadcast data (including paging messages and broadcast and multicast services) at discrete intervals, and does not need to perform handover or network reconfiguration when moving across multiple base stations. Access process. [0003] I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/08H04W8/02H04W60/00
Inventor 陈宏王宁许玲娄笃仕
Owner 李桂平
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