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Method and device for realizing the preferential access to REC at the RE beginning end

A technology of equipment and wireless equipment, applied in the direction of electrical components, wireless network protocols, radio/inductive link selection and arrangement, etc., can solve the problem that RE cannot maintain stable normal communication, etc.

Active Publication Date: 2007-08-01
HUAWEI TECH CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and equipment for realizing RE head-end preferential access to REC, so as to solve the problem in the prior art that RE cannot maintain stable normal communication due to random access to REC

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  • Method and device for realizing the preferential access to REC at the RE beginning end
  • Method and device for realizing the preferential access to REC at the RE beginning end
  • Method and device for realizing the preferential access to REC at the RE beginning end

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Embodiment Construction

[0018] The present invention will be further described below with specific embodiments in conjunction with the accompanying drawings.

[0019] The present invention discloses a method for realizing the preferential access of the RE head to the REC. One embodiment is shown in FIG. 2, which includes the following steps:

[0020] S201. The REC adds a port attribute field to the CPRI frame to be sent.

[0021] In order to preferentially access the beginning of the REC, the RE must know whether the effective HOP value is sent from the beginning or the end, so as to decide how to access. Therefore, it is necessary to extend the CPRI standard frame and add a port attribute field, as shown in the structure of the superframe control field of the CPRI standard frame in Table 1.

[0022] Table 1:

[0023] Zixin

road number

subchannel purpose

Xs=0

Xs=1

Xs=2

Xs=3

0

synchronous timing

Synchronization byte K28.5

Hyperfra...

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Abstract

The disclosed method to let RE head port preferential access REC comprises: REC adding port attribute field in CPRI frame and evaluates to identify the head and tail ports or failure to send to RE; two ports of RE receives CPRI frame to analyze and obtain the field value for CPRI head and tail port attributes and access way. This invention realizes default accessing REC from head port for RE, and overcomes stability problem led by random access in prior art.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and equipment for realizing preferential access of a RE (Radio Equipment, wireless equipment) head end to a REC (Radio Equipment Controller, wireless equipment controller) in a public radio frequency interface. Background technique [0002] CPRI (Common Public Radio Interface) is a standardized interface developed by the 3G (The Third Generation, third-generation mobile communication) base station open interface platform development alliance to solve the problem of interface mismatch between different equipment manufacturers. It defines the physical layer and basic data link layer format between REC and RE. As a standard interface for serial cascading networking, the REC defined by CPRI is the master node in the cascading networking, and the RE is the slave node. Among them, the REC is connected to the RNC (Radio Network Controller, radio network ...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04Q7/32H04W74/08H04W80/02H04W88/02
CPCH04W88/02
Inventor 王少瑞
Owner HUAWEI TECH CO LTD
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