Cellular base station device, data transmission method thereof, communication device and communication system
A technology of communication equipment and baseband processing equipment, applied in the field of communication, can solve the problems of long construction period, large resource and time consumption, complicated process, etc., and achieve the effect of reducing engineering difficulty and cost, and solving difficult site selection.
Inactive Publication Date: 2016-11-23
CHINA TELECOM CORP LTD
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[0005] However, in the process of realizing the present invention, the inventors found that even if DAS is adopted, system deployment is still difficult and costly: it is necessary to redeploy lines such as optical fibers for the entire building that needs network coverage, and the process is complicated and requires The construction period is long and the cost is high; in addition, the deployment of indoor DAS requires a lot of non-technical coordination work, which consumes too much resources and time
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[0042] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
[0043] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.
[0044] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.
[0045] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the descriptio...
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The embodiment of the invention discloses a cellular base station device, a data transmission method thereof, a communication device and a communication system. The cellular base station device comprises a baseband processing device and a radio remote unit connected via a power line, wherein the baseband processing device carries out baseband processing on downlink digital data signals, modulates the signals to the power line and then transmits the signals to the radio remote unit, and uplink digital signals are subjected to demodulation and baseband processing and then returned to a core network side; and the radio remote unit demodulates the downlink digital data signals from the power line, digital to analog conversion and frequency conversion are then carried out, downlink analog data signals of a cellular coverage frequency point are then obtained, the signals are transmitted via an antenna, frequency conversion and analog to digital conversion are then carried out on uplink analog data signals received by the antenna, uplink digital baseband signals are acquired and modulated to the power line and then transmitted to a baseband processing device. The embodiment of the invention solves the problem of forward resource returning of the cellular communication system, and reduces the deployment difficulty and the cost of an indoor cellular communication system.
Description
technical field [0001] The invention relates to communication technology, in particular to cellular base station equipment and its data transmission method, communication equipment and communication system. Background technique [0002] With the rapid development of wireless communication technology, multimedia services such as image, video, and Internet browsing have become the main service requirements of current mobile users, which makes the user's data traffic demand increase day by day. Therefore, how to provide users with faster and more connections has become the main goal of the evolution of mobile communication systems in the future 5G era. [0003] In the current 5G research, ultra-dense networking will effectively solve the problems of high number of connections and large capacity requirements in the future, and is an important potential networking form. However, in ultra-dense networking, the number of micro base stations is large, and the requirements for the b...
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IPC IPC(8): H04W88/08H04B3/54
CPCH04B3/54H04W88/08
Inventor 毕奇刘洋陈鹏佘小明李欣王达
Owner CHINA TELECOM CORP LTD
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