Data transmission method, system, computer device and storage medium
A data transmission method and data technology, applied in wireless communication, electrical components, network planning, etc., can solve the problems of increased fronthaul bandwidth and host unit baseband design cost, etc., to reduce fronthaul bandwidth, improve air interface resource utilization, and reduce The effect of design costs
Active Publication Date: 2021-09-24
COMBA TELECOM SYST CHINA LTD
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Problems solved by technology
[0003] In order to reduce the low-noise rise after DP radios are combined, it is generally necessary to limit the number of DP radios combined. In the case of a larger bandwidth and number of antennas, if the division method of option8 is still used, the fronthaul bandwidth will become This increases the baseband design cost of the main unit. For example, in a 100MHz / 4T4R indoor distribution system, the remote unit connects 16 remote units, and the maximum number of remote unit RF combined is no more than 4, then the option8 division method The pre-transmission bandwidth reaches 38.9Gbps, while the LTE 20MHz / 2T2R system, the pre-transmission bandwidth is only 3.1Gbps
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[0069] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0070] A data transmission method provided by this application can be applied to such as figure 1 In the shown base station system, the system includes a host unit, an extension unit and a remote unit, wherein the host unit communicates with multiple extension units, and each extension unit communicates with at least one remote unit. Among them, multiple expansion units can be in a parallel relationship, such as expansion unit 1 and expansion unit 2, or in a cascade relationship, such as expansion unit 1 and expansion unit 3; all remote units connected to the same expansio...
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The present application relates to a data transmission method, system, computer equipment and storage medium. Since the target expansion unit is an expansion unit connected to a service remote unit matching the user equipment set, when data transmission is performed between the host unit and the user equipment Only the target expansion unit needs to transmit data through the service remote unit group connected to it, instead of data transmission with all remote unit groups, so that the fronthaul bandwidth between the main unit and the expansion unit / remote unit is greatly reduced , from reducing the baseband design cost of the host unit, in addition, the host unit pre-matches the user equipment that can share the same time-frequency resources, and only needs to allocate the same time-frequency resources to the matched user equipment set, which greatly improves the utilization of air interface resources Rate.
Description
technical field [0001] The present application relates to the technical field of mobile communication, in particular to a data transmission method, system, computer equipment and storage medium. Background technique [0002] Distributed pico base station is a new type of indoor wireless distribution system for optical fiber or Category 5 wiring indoors. It uses a base band unit (Base Band Unit, BBU) + radio frequency unit (Remote Radio Unit, RRU) structure. The system architecture of the pico base station is composed of a host unit (host unit) + extension unit + remote unit. Based on the Third Generation Partnership Project (3GPP) protocol, a method for dividing the functions between the BBU and the RRU is proposed. A variety of options are used as a reference, that is, in the prior art, the functions of the host unit and the remote unit / remote unit are divided based on option8, and then the host unit completes the modulation and demodulation of the baseband signal, and the ...
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IPC IPC(8): H04W16/14H04W24/02H04W72/12
CPCH04W16/14H04W24/02H04W72/1268H04W72/1273H04W72/20H04W72/121H04W72/542
Inventor 刘震徐慧俊区洋杨波丁宝国黄鹏飞
Owner COMBA TELECOM SYST CHINA LTD