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Synchronization device for radio remote unit of centralized unit of base station

A technology of radio remote unit and centralized unit, which is applied in the field of communication, can solve problems such as wireless signal air interface alignment, achieve the effect of reducing work intensity and improving data synchronization processing ability

Inactive Publication Date: 2020-04-14
SICHUAN TIANYI COMHEART TELECOM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a synchronization device for the remote radio unit of the centralized unit of the base station, which has the advantage of solving the problem of wireless signal air interface alignment in the case of 5G complex networking

Method used

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  • Synchronization device for radio remote unit of centralized unit of base station
  • Synchronization device for radio remote unit of centralized unit of base station
  • Synchronization device for radio remote unit of centralized unit of base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] refer to figure 2 , a synchronization device for a remote radio unit of a centralized unit of a base station, comprising a BBU, two rHUB buffer units, two rHUBs cascaded with the BBU and three RRUs cascaded with the rHUB, and one rHUB buffer unit and Corresponding to one rHUB, the distances between the three RRUs cascaded with one rHUB and the rHUB are 10KM, 20KM, and 30KM respectively, and the distances between two rHUBs and the BBU are 10KM and 30KM respectively.

[0063] RRU for data received from the antenna;

[0064] rHUB is used to receive the data sent by RRU and cache the data;

[0065] The rHUB cache unit is used to calculate the first delay T1n and the maximum RRU delay Tmax1 between each RRU that has a mapping relationship with the corresponding rHUB and the rHUB, and is also used to calculate the second delay between the rHUB and the BBU T2n and the maximum rHUB delay Tmax2, and calculate the maximum reporting delay Tmax according to the maximum RRU delay...

Embodiment 2

[0081] refer to figure 2 , a synchronization device for a remote radio unit of a centralized unit of a base station, comprising a BBU, two rHUB buffer units, two rHUBs cascaded with the BBU and three RRUs cascaded with the rHUB, and one rHUB buffer unit and Corresponding to one rHUB, the distances between the three RRUs cascaded with one rHUB and the rHUB are 10KM, 20KM, and 30KM respectively, and the distances between two rHUBs and the BBU are 10KM and 30KM respectively.

[0082] RRU is used to receive the data sent by rHUB;

[0083] The rHUB is used to receive the data sent by the BBU and cache the data;

[0084] The rHUB cache unit is used to calculate the first delay T1n and the maximum RRU delay Tmax1 between each RRU that has a mapping relationship with the corresponding rHUB and the rHUB, and is also used to calculate the second delay between the rHUB and the BBU T2n and the maximum rHUB delay Tmax2, and calculate the maximum reporting delay Tmax according to the max...

Embodiment 3

[0100] refer to figure 2 , a synchronization device for a remote radio unit of a centralized unit of a base station, comprising a BBU, a BBU buffer unit, two rHUB buffer units, two rHUBs cascaded with the BBU and three RRUs cascaded with the rHUB, one The rHUB cache unit corresponds to one rHUB. The distances between the three RRUs cascaded with one rHUB and the rHUB are 10KM, 20KM, and 30KM respectively, and the distances between the two rHUBs and the BBU are 10KM. , 30KM.

[0101] The RRU receiving unit is used for data received from the antenna;

[0102] rHUB is used to receive the data sent by RRU and cache the data;

[0103] The rHUB cache unit is used to calculate the first delay T1n and the maximum RRU delay Tmax1 between each RRU that has a mapping relationship with the corresponding rHUB and the rHUB, and is also used to calculate the second delay between the rHUB and the BBU T2n and the maximum rHUB delay Tmax2, and calculate the maximum reporting delay Tmax acco...

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Abstract

The invention relates to the technical field of communication, and aims to provide a synchronization device for a radio remote unit of a centralized unit of a base station. The system comprises a BBU,at least one rHUB cache unit, at least one rHUB cascaded with the BBU, at least one RRU cascaded with the rHUB and at least one RRU cache sending unit, wherein one rHUB cache unit is corresponding toone rHUB, and one RRU cache sending unit is corresponding to one RRU; an RRU receiving unit which is used for receiving the data from the antenna and caching the data to the RRU cache sending unit. The RRU cache sending unit delays to the end of the first reporting time delay T1n of the RRU and sends the data to the RRU cascaded rHUB through the RRU; the rHUB is used for receiving the data sent by the RRU and caching the data to the rHUB caching unit, and the rHUB caching unit delays to the second issuing time delay T2n of the rHUB and ends sending the data to the BBU through the rHUB; and the BBU is used for receiving the data sent by the rHUB. The device has the advantage of solving the problem of wireless signal air interface alignment under the condition of 5G complex networking.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a synchronizing device for a remote radio unit of a centralized unit of a base station. Background technique [0002] In the deployment of 5G base stations, there will be a remote radio unit deployment scheme based on multiple rHUBs. In this deployment scheme, the length of the fiber between each rHUB and the remote radio unit is different, especially for multi-level rHUB cascades. Deployment plan, refer to figure 1 , according to the operator's 5G network architecture planning, multiple rHUBs will be connected under one BBU, and each rHUB can connect up to 8 RRUs. In such a connection, due to the difference in the location of the device, the length of the cable connection is different, which leads to the inconsistency of the delay. However, 5G communication requires strict alignment of wireless signals on the air interface, otherwise it will lead to difficulties in demo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00
CPCH04W56/001
Inventor 景叔武李文刚高中有
Owner SICHUAN TIANYI COMHEART TELECOM
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