Method and device for coding system message

A system message and coding technology, which is applied in the communication field, can solve problems such as coding anomalies and system message coding failures, so as to reduce the probability of switching failure and improve user experience

Inactive Publication Date: 2011-05-11
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the problem in the prior art that system message coding fails due to failure to judge whether the frequency point of the adjacent cell to be coded will be coded abnormally, the main purpose of the present invention is to provide a processing scheme for system message coding , to address at least one of the above

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  • Method and device for coding system message
  • Method and device for coding system message

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Embodiment 1

[0062] In this embodiment, how to determine the importance level of each frequency point in the frequency point set of the neighboring cell is described.

[0063] In this implementation, in the process of abnormal detection of system message coding, the judgment of the frequency point importance level in the initial adjacent cell frequency point set is mainly based on the global cell identification code (Cell Global Identity, referred to as CGI). Realization, the specific judgment process mainly includes the following contents: 1) extract the cell identification codes corresponding to all frequency points in the initial adjacent cell frequency point set, that is, the CGI code; 2) judge the importance of the CGI code according to the preset system message coding rules ; 3) Determine the importance level of the frequency point according to the importance of the CGI code corresponding to the frequency point.

[0064] The importance criterion of the CGI code is as follows: in the ...

Embodiment 2

[0070] In this embodiment, how to determine the capacity priority of a frequency point is described.

[0071] Specifically, the capacity priority means that when the sum of the frequency differences between a certain frequency point and all other frequency points in the adjacent cell frequency point set (that is, the value of this frequency point minus the difference between other frequency points) is relatively large, according to The protocol GSM0408 will lead to a reduction in the overall number of codes that can be encoded.

[0072] According to the above-mentioned capacity priority theory, in the specific implementation process, according to the above-mentioned capacity priority sorting rules, the processing of the initial neighbor cell frequency point set includes the following steps:

[0073] Step 1. Calculate the sum of the frequency differences between all individual frequency points and all other frequency points;

[0074] Step 2. Compare the sum of frequency differ...

Embodiment 3

[0079] This embodiment combines the frequency point importance level and capacity priority judgment methods described in Embodiment 1 and Embodiment 2, figure 2 It is a detailed flow chart of sorting frequency points in this embodiment. Such as figure 2 As shown, in this embodiment, the process of sorting the frequency points in the initial neighbor cell frequency point set mainly includes the following steps:

[0080] Step 201: After sorting the frequency point sets of neighboring cells to be delivered by the important priority sorting rules, they will be divided into importance 1 subset, importance 2 subset, importance 3 subset, ..., different subsets of importance n. Wherein, the importance may decrease from 1 to n, or may increase from 1 to n. In this embodiment, the descending from 1 to n is taken as an example, and each sub-set has the same internal importance, so there is no priority relationship.

[0081] Step 202. For each sub-set, sort them using frequency diff...

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Abstract

The invention discloses a method and a device for coding a system message. In the method, before carrying out system message coding on an initial neighborhood frequency point collection, the initial neighborhood frequency point collection is taken as a preprocessing neighborhood frequency point collection, and the following steps are carried out: executing the judgment step: detecting whether the coding abnormality is caused by the preprocessing neighborhood frequency point collection or not, if so, executing the deleting step, and otherwise, executing the coding step; executing the deleting step: deleting a frequency point in the preprocessing neighborhood frequency point collection so as to obtain an update neighborhood frequency point collection and executing the judgment step by taking the update neighborhood frequency point collection as the preprocessing neighborhood frequency point collection; and executing the coding step: carrying out system message coding on the preprocessing neighborhood frequency point collection. According to the invention, the capability for processing the abnormity of the system message can be improved, the probability for a user terminal to switch failed events can be reduced and the user experience can be improved.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and device for processing system message encoding. Background technique [0002] Currently, in the communication system, in addition to the fact that the user terminal cannot search for neighboring cells due to improper configuration of neighboring cells, it is also possible that the handover failure of the user terminal may occur because the list of neighboring cells that can be switched is not delivered to the user terminal. [0003] The above phenomenon that the switchable neighbor list is not sent to the user terminal is mainly caused by the abnormality of the system message encoding. The following part takes the GSM communication system as an example to explain the abnormal phenomenon of the system message encoding: According to the 3GPP TS 44.008 agreement, The encoding of the frequency points is directly related to the frequency difference and the number of f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04H04W24/10H04W48/16
CPCH04L1/0041
Inventor 刘强
Owner ZTE CORP
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