A method for converting cascaded radio frequency remote units into repeaters and rru equipment
A radio frequency remote unit and repeater technology, applied in the field of communication, can solve the problem of a large number of optical fibers, and achieve the effect of reducing costs and improving equipment utilization.
Active Publication Date: 2016-08-10
HUAWEI TECH CO LTD
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[0007] The purpose of the present invention is to provide a method and RRU equipment for converting cascaded radio frequency remote units into repeaters, aiming to solve the problem in the prior art that the use of optical fiber link mutual aid will increase the number of optical fibers
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[0022] In order to make the object, technical solution and beneficial effects of the present invention more clear, the present invention 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 invention, not to limit the present invention.
[0023] In the embodiment of the present invention, when a certain level of link in the cascaded RRU / RHUB is interrupted, or when the link between the RRU / RHUB and the BBU is interrupted, the RRU / pRRU equipment (at least 2 equipment and interconnected with each other), and automatically convert to repeater function to ensure that equipment can continue to work, improve operator equipment utilization and reliability of communication services within the coverage area. After the link is restored, the repeater will automatically restore the original networking and functions of the RRU / pRRU. ...
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The invention is applied to the technical field of communication, and provides a method for converting a cascade remote radio unit into a repeater and RRU equipment. The method comprises the following steps that whether a link is interrupted or not is detected; when interruption of the link is detected, according to a preset principle, a part of equipment behind a fault point of the link is chosen to serve as a donor end, and the rest of the equipment serves as a retransmission end; the donor end and the retransmission end are combined to form the repeater. According to the method and the RRU equipment, linear amplification forwarding for one or more base station signals is achieved, a self-organizing scheme low in cost is provided for the last section of a network form, the fact that the equipment can continue to work can be guaranteed without consuming additional optical fibers, and the equipment utilization rate of an operator and communication service reliability in a coverage area are promoted.
Description
technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a method for converting a cascaded radio remote unit into a repeater and an RRU device. Background technique [0002] Cascaded remote radio unit (referred to as cascaded RRU) scenario is a special networking scenario for distributed base stations, such as figure 1 shown. A distributed base station generally consists of two parts: a BBU (Baseband Control Unit, baseband control unit) and an RRU (Remote Radio Unit, remote radio unit). Multiple RRUs can be connected in multi-level series, which can be applied to scenarios such as high-speed railways, expressways, tunnels, and indoor distributed coverage. [0003] In indoor distributed coverage networking scenarios, RHUB (Remote Radio Unit HUB, radio remote unit hub) cascade networking can be supported, such as figure 2 As shown, multiple pRRUs (PicoRemote Radio Units) can be attached to each RHUB, and each pRRU ...
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IPC IPC(8): H04B7/15H04B10/07H04W24/04
Inventor 李娟张志东
Owner HUAWEI TECH CO LTD