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Method for implementing node B master-slave redundancy

A node and redundant technology, applied in the field of communication, can solve the problems of occupying the processing resources and communication bandwidth of the main device, increasing the hardware cost, and long switching time between the main and standby devices, ensuring complete consistency, simplifying hardware design and software design, The effect of improving performance and switching speed between active and standby

Inactive Publication Date: 2008-03-12
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0005] It can be seen from the above scheme that incremental synchronization is required for each NBAP process, which occupies the processing resources and communication bandwidth of the master device. performance
The hardware design needs to consider the issue of active and standby, which increases the cost of hardware; when the active and standby switchover occurs, because the UE in the NodeB may be in a transient state, incremental synchronization cannot be performed in a timely manner, resulting in a relatively long time for the active and standby switchover

Method used

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  • Method for implementing node B master-slave redundancy
  • Method for implementing node B master-slave redundancy

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Embodiment Construction

[0024] Figure 1 is a schematic diagram of the composition of NodeB. NodeB generally consists of BIIA board (interface board), main BCCS board (main control board), standby BCCS board (standby control board), several TBPA boards (baseband processing board) board) and several TTRX single boards (radio frequency single boards). Figure 2 is a schematic diagram of the connection of different boards of the NodeB. The BIIA board, the main BCCS board, and the backup BCCS board form the first IP multicast group, and the main BCCS board, the backup BCCS board, and the TBPA board form the second IP multicast group. broadcast group.

[0025] Next, the asynchronous reconfiguration process of the wireless link is taken as an example to illustrate the process of active and standby redundancy. As shown in Fig. 3, the method for realizing NodeB active-standby redundancy described in the invention comprises the following steps:

[0026] Step S1, establish an IP multicast group, set the destin...

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Abstract

The utility model discloses a method used for realizing main and backup redundancy of node B, which comprises step I. Establishing IP multicast group and setting IP multicast addresses for the data sent by interface board as well as add the IP multicast addresses for the main control board and the backup board; step II. Start up the backup board, so as to require the synchronization from the main control board; Step III. After receiving the data, the interface board can send the data to the main control board and the backup control board in the multicast group through multicast method; Step IV. The main control board in the multicast group processes the data normally and the backup control board in the multicast group receives data and processes data, but does not send data.

Description

technical field [0001] The invention relates to the communication field, in particular to a NodeB (Node B) master-backup redundancy method in TD_SCDMA and WCDMA systems. Background technique [0002] As a part of TD_SCDMA and WCDMA public communication system, NodeB must guarantee its reliability. The general implementation method adopts the 1+N redundant backup method for the boards on the NodeB, thereby increasing the reliability of the NodeB equipment; data synchronization is performed between the master device and the backup device, so as to realize the redundant hot backup of the NodeB boards. Ensure the reliability of services provided by NodeB equipment. [0003] In addition to unicast and broadcast functions, the TCP / IP protocol also provides multicast functions. IP multicast sends data to a single destination IP multicast address, but is received and processed by multiple IP hosts, regardless of where those hosts are located on the IP internetwork. A host listens...

Claims

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Application Information

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IPC IPC(8): H04L1/22H04L12/18
Inventor 张现周张志新蔡文洲胡民安
Owner ZTE CORP
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