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Method and device for modifying transmission channel table

A transmission channel and modification device technology, applied in the field of communication, can solve problems such as forwarding failure and failure to find, and achieve the effect of ensuring correct forwarding

Active Publication Date: 2018-08-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem caused by the method of first deleting the old channel entry and then creating a new channel entry is that when the old channel entry has been deleted and the new channel entry has not been successfully established, if data transmission is required , the base station will fail to forward because the channel table entry corresponding to the message cannot be found.

Method used

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  • Method and device for modifying transmission channel table
  • Method and device for modifying transmission channel table
  • Method and device for modifying transmission channel table

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] This preferred embodiment focuses on the description of how the base station modifies the channel entry when switching between baseband boards in the base station. When switching between baseband boards in the base station occurs in the network, the base station modifies the transmission channel entry in the following manner:

[0059] (1) Obtain the transmission address of the baseband board where the handover target cell is located.

[0060] (2) Construct the TEID of the new channel entry according to the TEID in the old channel entry of the service. The specific construction method is as follows:

[0061] a. Obtain the TEID in the old channel entry of the service;

[0062] b. Invert the bit of the TEID identifying the new / old channel entry in the old channel entry to form a new channel entry for the service.

[0063] (3) A new channel entry for the service is established in the base station transmission channel table, and the downlink data forwarding address of the...

Embodiment 2

[0069] This preferred embodiment mainly describes how the base station modifies the channel entry when the X2 interface between base stations is handed over between SGWs. When a cross-SGW handover of the X2 interface between base stations occurs in the network, the base station modifies the transmission channel entry in the following manner:

[0070] (1) Obtain the transfer address of the handover target SGW.

[0071] (2) Construct the TEID of the new channel entry according to the TEID in the old channel entry of the service. The specific construction method is as follows:

[0072] a. Obtain the TEID in the old channel entry of the service;

[0073] b. Invert the bit of the TEID identifying the new / old channel entry in the old channel entry to form a new channel entry for the service.

[0074] (3) A new channel entry for the service is established in the base station transmission channel table, and the uplink data forwarding address of the new channel entry is filled with ...

Embodiment 3

[0080] Figure 5 is a structural block diagram of a transmission channel table modification system according to a preferred embodiment of the present invention, such as Figure 5 As shown, the system provided by the present invention includes: a base station 52 , an SGW 54 and a terminal 56 . Wherein, the base station 52 includes a transmission channel table maintenance module 522 and a transmission channel entry matching module 524, and the transmission channel entry matching module 524 is used for packet forwarding.

[0081] The transmission channel table maintenance module 522 is mainly responsible for the maintenance of the base station channel table item. When the content of the base station channel table item needs to be modified during the handover process, the transmission channel table maintenance module adopts the method of first establishing a new channel table item, and then deleting the old channel table item. , to ensure that the base station can successfully ma...

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Abstract

The invention discloses a method and device for modifying a transmission channel table. The method includes: acquiring a first channel entry of a service in a transmission channel table; and establishing a first channel entry of a service in the transmission channel table according to the first channel entry. Two-channel entry, wherein both the first channel entry and the second channel entry include a distinguishing identifier, and the distinguishing identifier is used to distinguish the first channel entry and the second channel entry; delete the first channel entry. The present invention can avoid the time vacuum in which the old channel table entry has been deleted and the new channel table entry has not been created, so as to ensure that the message is forwarded successfully. The matching mode effectively ensures the correct forwarding of packets.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and device for modifying a transmission channel table. Background technique [0002] When a terminal accesses a wireless network and moves along with it, handover is inevitable. For example, when the terminal is far away from the current serving cell, the terminal detects that the signal quality of the current serving cell will become weaker and weaker, while the signal quality of the adjacent cell will become stronger and stronger. When the signal quality of the serving cell and the signal quality of the adjacent cell meet a certain threshold, switching the serving cell of the terminal in time can not only avoid the impact of the change of signal quality on the ongoing service of the user, but also avoid unnecessary call drop . [0003] In the Long Term Evolution (LTE for short) system, in order to reduce the impact of the terminal on the user service during the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/00H04W88/08
CPCH04L45/02H04W76/11
Inventor 田炜武娟
Owner ZTE CORP
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