Random access method, system, base station processing unit and remote radio module

A radio frequency remote module, random access technology, applied in the field of communication, can solve problems such as large bandwidth

Inactive Publication Date: 2017-04-26
POTEVIO INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It can be seen that with the increase of the number of antennas and the sampling rate, a larger bandwidth is required in the random access process

Method used

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  • Random access method, system, base station processing unit and remote radio module
  • Random access method, system, base station processing unit and remote radio module
  • Random access method, system, base station processing unit and remote radio module

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] In the embodiment of the present invention, modules irrelevant to the number of antennas in the random access are sequentially selected in the BBU, and the selected modules are added to the RRU to form a new RRU; the selected modules are deleted from the BBU to form a new BBU. In this way, the time-domain data with a large amount of data transmission is directly transmitted inside the new RRU, and does not need to be transmitted to the new BBU through the IR interface module. The transmission volume of configuration information and random access detection information is small, and the transmission data volume is independent of the number of antennas, so the data transmission volume of the interface in random access is significan...

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Abstract

The invention provides a random access method. The method comprises the steps of sequentially selecting and randomly accessing modules independent of the antenna number to a BBU, adding selected modules to an RRU to construct a newly built RRU, deleting selected modules in the BBU to construct a newly built BBU, sending the random access detection information from the newly built RRU to the newly built BBU through an IR interface module upon receiving the construction information sent by the newly built BBU, transmitting the construction information required for RRU treatment to the newly built RRU from the newly built BBU through the IR interface module, and reporting the random access detection information upon receiving the random access detection information. The invention also discloses a random access method applied to a randomly accessed radio remote unit and a base station processing unit. According to the embodiments of the present invention, the interface data transmission amount during the randomly accessing process is reduced. Furthermore, the data transmission bandwidth required for a randomly accessed transmission interface is reduced.

Description

technical field [0001] The present application relates to the technical field of communications, and more specifically, to a random access method, system, base station processing unit, and remote radio module. Background technique [0002] In the future networking and C-RAN technology, the base station processing unit (BBU)-radio remote module (RRU) interface (CPRI) data transmission technology is an important technical means for future system networking. [0003] See attached figure 1 , in the random access process, the RRU is mainly responsible for: uplink random access signal antenna reception, front-end processing, A / D conversion and intermediate frequency processing. There are different modules in the BBU for processing different channels. During the random access process, CP processing, down-sampling filtering, PRACH signal detection and timing estimation in the BBU are responsible for processing a large number of baseband digital signal processing parts. The RRU se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04H04W74/08
CPCH04W24/04H04W74/0833
Inventor 金奕丹冯绍鹏
Owner POTEVIO INFORMATION TECH
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