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Group creation method and device

A technology for establishing methods and groups, applied in the field of communication, can solve problems such as the large complexity of ENBLIST, and achieve the effect of reducing complexity

Active Publication Date: 2021-05-18
CHENGDU TD TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, since one TACLIST includes multiple TACs, and one TAC can correspond to multiple base stations, the complexity of calculating ENBLIST based on TACLIST is relatively large

Method used

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  • Group creation method and device
  • Group creation method and device

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Experimental program
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Embodiment Construction

[0021] figure 1 A flow chart of a method for establishing a group provided by an embodiment of the present invention; figure 2 is a data sheet in the prior art; image 3 The data table applicable to the group creation method provided by the embodiment of the present invention. The embodiment of the present invention provides a group establishment method for a TACLIST that includes multiple TACs, and one TAC can correspond to multiple base stations, resulting in greater complexity in calculating the ENBLIST based on the TACLIST. The specific steps of the method are as follows:

[0022] Step S101 , search for a tracking area code list of online users subscribed in the group according to the group, and the tracking area code list includes multiple tracking area codes.

[0023] In this embodiment, the user terminal initiates a group establishment request to the core network, and the core network searches for the online user tracking area code list (Tracking Area Code List, TACL...

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Abstract

Embodiments of the present invention provide a method and apparatus for establishing a group. The method includes: searching for a tracking area code list of online users subscribed in the group according to the group; and determining a base station list corresponding to the tracking area code list according to the base station corresponding to each tracking area code in the tracking area code list. In the embodiment of the present invention, by adding a data table (ENB-TAC), a Hash KEY is established based on ENB and TAC respectively, and searching for TACLIST according to ENB and searching for ENBLIST according to TAC are both atomic operations O(1). When calculating ENBLIST according to TACLIST, the ENBLIST found by each TAC is added to the new Hash table, and finally an ENBLIST is obtained, and the calculation amount is O(1), thereby reducing the complexity of calculating ENBLIST according to TACLIST.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular, to a method and device for establishing a group. Background technique [0002] When a user initiates the establishment of a group, the core network needs to search the list of online users who subscribe to the group according to the group (GROUP), and calculate it based on the tracking area code list (Tracking Area Code List, TACLIST) of the signed online users and the configuration relationship of the base station. Base station list (Enterprise NodeB List, ENBLIST), and finally initiate group establishment to the corresponding ENBLIST / TACLIST. [0003] In the prior art, since one TACLIST includes multiple TACs, and one TAC can correspond to multiple base stations, the complexity of calculating the ENBLIST according to the TACLIST is relatively large. Contents of the invention [0004] Embodiments of the present invention provide a group esta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/08H04W16/18H04W28/16H04W88/18
CPCH04W4/08H04W16/18H04W28/16H04W88/18
Inventor 刘胜国徐晓亮曹孟
Owner CHENGDU TD TECH LTD