Access method and device for RRU

Abstract

The embodiment of the invention discloses an access method and device for an RRU and relates to the field of wireless communication. The access method and device are used for solving the problem that in the prior art, the RRU can not get access under a C-RAN infrastructure. First RRU identification is distributed to the RRU through an optical switching device, access request information which is sent by the RRU and carries the first RRU identification is intercepted through the optical switching device and forwarded to a control device, the control device can transmit an optical interface number, on the side of the optical switching device, of the RRU to a BBU distributed to the RRU through the process that the BBU is distributed to the RRU, and the optical switching device is instructed to perform optical interface internal interconnection, and then the BBU can distribute second RRU identification to the RRU according to the optical interface number, wherein the second RRU identification is used for getting access to the BBU. The problem that the RRU can not get access under the C-RAN infrastructure is solved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to an RRU access method and device. Background technique [0002] In the traditional radio access network (Radio Access Network, RAN) architecture, the baseband processing unit (Building Base band Unit, BBU) and the remote radio frequency unit (Radio Remote Unit, RRU) are directly connected through optical fibers, and the connection relationship is fixed. figure 1 It shows a schematic diagram of an RRU accessing a BBU under the RAN architecture. The RRU in the search synchronization state can establish a fiber link synchronization process with the BBU. After the RRU and the BBU establish fiber link synchronization, the BBU assigns an RRU identifier (RRU ID) to the RRU. The RRU ID is determined by the optical port on the BBU side and the connection The series of RRUs on the optical fiber between the BBU and the RRU is composed of the number of BBU side optical ports uni...

AI Technical Summary

Problems solved by technology

[0006] In the C-RAN architecture, the corresponding relationship between BBU and RRU is dynamically assigned by the control device, and the BBU cannot obtain the relevant fiber link access information of the RRU connected to the BBU (such as the optical port number and fiber series), therefore, the BBU cannot complete the access process of the RRU

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