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Data channel configuration method and device

A technology of data channel and configuration method, which is applied in the field of communication, and can solve the problems that I/Q data cannot be synchronized, processed, and carrier data cannot be transmitted.

Active Publication Date: 2013-02-13
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the existing technology cannot realize the I / Q data synchronization between the RRU and the BBU in the baseband remote base station, and the I / Q data cannot be synchronized when the I / Q data between the RRU and the BBU needs to be combined with antenna data. That is, the existing technology cannot make the RRU send the data of the specified carrier on the intermediate frequency channel of different physical antennas to the designated BBU for processing, and cannot make the data of a certain carrier processed on the BBU be correctly sent to the physical antenna intermediate frequency channel of the designated RRU for transmission. go out

Method used

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  • Data channel configuration method and device

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Experimental program
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Embodiment 1

[0097] Embodiment 1 of the present invention When using the data channel configuration method provided by the embodiment of the present invention to configure a data channel for a cell, registers are respectively set on the designated BBU, RRU, and the BIU optical port connected to the designated RRU in advance, and the operation and maintenance system configures the registers through To configure the channel information for the BIU optical port connected to the BBU, RRU and the specified RRU, the specific work includes the following parts:

[0098] 1. Registers are set in advance on the designated BBU, RRU, and BIU optical port connected to the designated RRU in the cell.

[0099] In the cell planning, which physical antennas of which RRUs are occupied by the cell and the number of frequency points to be occupied are specified. The operation and maintenance system specifies which carriers of which BBUs in the BBU baseband pool are occupied by the cell according to the cell pla...

Embodiment 2

[0115] As shown in FIG. 11 , the second embodiment of the present invention uses the data channel configuration method provided by the embodiment of the present invention to configure a data channel for a 3C6A cell. The specific workflow is as follows:

[0116] S111. In the cell planning, a 3C6A cell is designated to occupy the antennas A0-A5 of RRU0, and the number of frequency points required is 3. The operation and maintenance system specifies that the cell specifically occupies the carriers C0-C2 of BBU0 in the baseband pool according to the cell planning.

[0117] S112. Determine the number N of data channels required by the cell.

[0118] According to formula (2), it can be seen that the number of data channels N=18 required by the cell.

[0119] S113. In the optical port register of the optical port connected to the RRU0, determine 18 unoccupied BIT bits as the BIT bits of the cell, and set an identifier of each BIT bit to indicate that the BIT bit is enabled for the BB...

Embodiment 3

[0137] The third embodiment of the present invention focuses on the process of synchronously configuring the data channel by using the method provided by the embodiment of the present invention under the condition that the I / Q data of the cell is combined with antenna data.

[0138] Firstly, the concept of antenna data combination is explained.

[0139] Antenna data combining refers to combining data of the same carrier on different antennas within a cell. Using the antenna data combination technology, the coverage of the cell can meet the coverage requirements within the scope of the BBU processing capability. For example: in a 3C cell, in order to meet the coverage requirements, 10 antennas need to be used, so 30 data channels are required, but for 1.25G optical fiber, according to formula (1), each chip can only carry a maximum of 23BIT I / Q data cannot meet the above coverage requirements, but if the number of users is relatively small and within the processing capacity of...

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Abstract

A method and an apparatus for configuring data channel are disclosed to realize I / Q data synchronization between RRU and BBU in baseband remote type base station. The method comprises: determining the number of data channels occupied by a cell according to the carrier on pre-appointed bandwidth based unit BBU to the cell and physical antenna on pre-appointed radio remote unit RRU to the cell; configuring indication information of In-phase / Quadrate data unit CA data on each data channel processed by the appointed BBU on BIU fiber port of BBU interface unit connected with the appointed RRU; configuring carrier index of the CA data on each datachannel processed by the appointed BBU and logic antenna number information used respectively by CA data on each data channel on the appointed BBU; configuring physical antenna number and intermediate frequency number information occupied respectively by CA data on each data channel on the appointed RRU.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a data channel synchronous configuration technology. Background technique [0002] In the mobile communication system, the base station is an important part of the mobile communication network. It is connected between the user terminal and the base station controller, and is used to send and receive wireless signals, so that the user terminal can access the wireless network, and at the same time complete the communication with the base station controller. information interaction. [0003] With the development of the third-generation mobile communication technology, the design method of the base station tends to separate the baseband and radio frequency, and the remote base station is a base station that separates the baseband and radio frequency. Referring to Figure 1, in the remote base station system, the BBU (Bandwidth Based Unit, baseband processing unit) baseband poo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/26H04B7/14H04W24/04H04W92/10H04W88/08
CPCH04B1/40H04W88/08H04W28/18
Inventor 徐黎罗斌刘晓琳陶磊王洪波王婷范炬
Owner DATANG MOBILE COMM EQUIP CO LTD