A signaling transmission method of obsai RP3 interface

A transmission method and signaling technology, applied in transmission systems, active electrical relay systems, electrical components, etc., can solve the problems of complex implementation of routing methods, high cost and cost, and increased difficulty, so as to reduce implementation difficulty and The effect of reducing complexity, reducing development cost, and shortening development cycle

Inactive Publication Date: 2011-12-28
ZTE CORP
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AI Technical Summary

Problems solved by technology

However, using FPGA to implement Ethernet MAC switching is very difficult to implement, and the cost and cost are also very high. This is where the current OBSAI protocol uses Ethernet frames to transmit signaling.
[0020] In addition, when the OBSAI protocol routes Ethernet format signaling, each node needs to analyze and process the Ethernet MAC frame, and perform routing and forwarding by comparing the MAC address node by node. This routing method is more complicated to implement.
In addition, there is an address field in the OBSAI message, and the message can be routed at the transport layer, that is, the protocol uses two different routing methods for signaling and message routing, which also makes the implementation of the protocol more difficult.

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  • A signaling transmission method of obsai RP3 interface
  • A signaling transmission method of obsai RP3 interface
  • A signaling transmission method of obsai RP3 interface

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Embodiment Construction

[0052] Below in conjunction with accompanying drawing and embodiment the present invention will be described in further detail:

[0053] Such as Figure 11 Shown, the method that the present invention transmits signaling by HDLC (advanced data link control) mode at OBSAI RP3 interface is:

[0054] a. The source node maps the signaling into the OBSAI data stream through HDLC;

[0055] b. The transport layer of the source node routes the OBSAI data flow to the destination node according to the destination address in the OBSAI data flow;

[0056] c. The destination node extracts the signaling message from the OBSAI data stream.

[0057] The following is an embodiment of the present invention. Through this embodiment, a specific implementation process of implementing signaling transmission between each BBU and RRU in the manner of HDLC is introduced in detail. In this embodiment, the source node in the above method is the BBU or RRU, and the destination node is the RRU or BBU a...

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Abstract

The invention discloses a signaling transmission method of an OBSAI RP3 interface. The method is as follows: a. the source node maps the signaling into the OBSAI data flow through HDLC frame mode; b. the transmission layer of the source node according to the OBSAI data flow in the The destination address routes the OBSAI data flow to the destination node; c. The destination node extracts signaling messages from the OBSAI data flow. The present invention adopts the HDLC method to transmit signaling, and the transmission layer can directly route the signaling frame to the destination node according to the address field, which greatly reduces the difficulty and complexity of hardware implementation, realizes reliable and efficient transmission of signaling, and shortens The development cycle is shortened, and the development cost is reduced.

Description

technical field [0001] The present invention relates to a distributed base station technology in a mobile communication system, in particular to RP3 (Reference Point 3, reference point 3) based on OBSAI (Open Base Station Architecture Initiative, open base station architecture) base station-radio frequency interface protocol in a distributed base station system The signaling method of the interface. Background technique [0002] 1) Distributed base station and open base station architecture (OBSAI) [0003] In a mobile communication system, a typical wireless access network is composed of BTS (Base Tranceiver Station, Base Transceiver Station) and BSC (Base Station Controller, Base Station Controller) or RNC (Radio Network Controller, Radio Network Controller), respectively as figure 1 shown. Among them, the base station is mainly composed of baseband processing subsystem, RF (Radio Frequency, radio frequency) subsystem, antenna and other units to complete the transmission...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/15H04L29/06
Inventor 林宇平胡超马文光
Owner ZTE CORP
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