Front-haul transport network (FTN) and data transmission method

A network and data technology, applied in the network field, can solve problems such as difficult to meet multi-hop networking, low latency, etc., and achieve the effects of reducing no-load, improving effective utilization, and improving effective utilization.

Active Publication Date: 2017-06-23
CHINA MOBILE COMM LTD RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the processing delay of OTN or PTN nodes is more than 50us, and the most sensitive service in the fronthaul network expects the end-to-end delay to be within 100us. Obviously, it is difficult to meet the requirements of such a low delay in multi-hop networking.

Method used

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  • Front-haul transport network (FTN) and data transmission method
  • Front-haul transport network (FTN) and data transmission method
  • Front-haul transport network (FTN) and data transmission method

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Embodiment Construction

[0059] The technical solution of the present invention will be further described in detail below in conjunction with the drawings and specific embodiments of the specification.

[0060] Such as figure 1 As shown, this embodiment provides a fronthaul network FTN. One end of the FTN is connected to an RRU, and the other end is connected to BBUs. Such as figure 2 with image 3 As shown, the FTN may further include:

[0061] The access fronthaul transmission node FTN-ACC 110 is used to connect to the remote radio unit RRU;

[0062] Convergent fronthaul transmission node FTN-AGG 120, one end is connected to the FTN-ACC, and the other end is connected to the baseband processing unit pool BUUs;

[0063] At least two transmission channels with different transmission delays are established between the FTN-ACC 110 and the FTN-AGG 120; the FTN-ACC 110 and / or the FTN-AGG 120 are specifically used for data-based Delay requirements, select the corresponding transmission channel for transmission. ...

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Abstract

The embodiment of the invention provides a front-haul transport network (FTN) and a data transmission method. The FTN comprises an access-type front-haul transport node FTN-ACC for connection with a remote radio unit (RRU), an aggregation-type front-haul transport node FTN-AGG having one other end connected with FTN-ACC and the other end connected with a base band unit pool (BBUs). At least two transmission channels with different transmission delays are established between the FTN-ACC and the FTN-AGG. The FTN-ACC and/or the FTN-AGG are/is specifically used for selecting a corresponding transmission channel for transmission according to a data delay requirement. In the invention, the FTN is divided into the FTN-ACC and the FTN-AGG and a plurality of transmission channels are provided. The corresponding channel transmission can be selected for transmission according to the data transmission delay. On the one hand, the transmission delay of different data can be satisfied. On the other hand, the non load of the transmission resources can be reduced as much as possible to enhance the effective utilization of the transmission resources.

Description

Technical field [0001] The invention relates to the field of network technology, in particular to a front-haul transport network (FTN) and a data transmission method. Background technique [0002] The Front-haul Transport Network (FTN) is a transport network located between a remote radio unit (RRU) and a base band processing unit (BBU). The FTN front end is connected to the RRU, and the back end is connected to a BBU pool composed of multiple BBUs. [0003] In the prior art, there are several ways for the FTN to connect the RRU and the BBU pool: [0004] The first method is to use optical fiber direct connection. Each RRU and BBU pool are connected by a pair of optical fibers. In this case, the number of optical fiber pairs used in FTN is large, and the effective utilization rate of a single pair of optical fibers is low. [0005] The second method is to use the color light direct connection mode, and multiple RRUs share a pair of optical fibers that can transmit different wavelengt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/02H04W88/08
CPCH04W76/15H04W88/085
Inventor 李晗程伟强王磊
Owner CHINA MOBILE COMM LTD RES INST
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