An agile access method and system based on directional beamforming
A directional beam, access method technology, applied in wireless communication, synchronization devices, electrical components, etc., can solve problems such as ultra-long-distance communication that cannot meet the requirements of large-scale microwave mobile access networks
Active Publication Date: 2021-09-24
军事科学院系统工程研究院网络信息研究所 +1
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[0005] In view of this, it is necessary to provide an agile access method and system based on directional beamforming to solve the problem that the existing communication network access technology cannot meet the ultra-long-distance communication requirements of a large-scale microwave mobile access network
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[0030] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention and are not intended to limit the scope of the present invention.
[0031] The present invention provides an agile access method based on directional beamforming, and the flow chart of one embodiment is as follows figure 1 As shown, in this embodiment, the agile access method based on directional beamforming is characterized in that it includes the following steps:
[0032] S1. Set the frame structure through multiple channels, obtain beams based on directional beam synthesis in the synchronous time slots of the frame structure, send beams through multiple channels and mini-slots, and perform alignment of direction, frequency, and time-domain directional anten...
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The present invention relates to an agile access method and system based on directional beam synthesis. The method includes the following steps: performing beam synthesis based on directional beams, setting a frame structure through multiple channels, and using multi-channel, Send the synthesized beam in the micro-slot, and align the direction, frequency, and time-domain directional antenna; in the access time slot of the frame structure, the base station receives the access request of the mobile station node through simultaneous operation of multiple channels and micro-slot scanning Perform initial ranging at the same time; the base station sends base station configuration information including frame structure and frame format, and the base station performs delay correction on the mobile station according to the base station configuration information and initial ranging, and allocates polling time slots, and the mobile station In the polling time slot, the uplink timing is advanced according to the delay correction, and the protocol interaction information is sent. The agile access method based on directional beam synthesis provided by the present invention can meet the ultra-long-distance communication required by the ground-air microwave mobile access network.
Description
technical field [0001] The present invention relates to the technical field of microwave communication, in particular to an agile access method and system based on directional beam synthesis. Background technique [0002] In the microwave communication network, the directional antenna has gained widespread attention due to its outstanding advantages of high-gain transmission / reception. The directional antenna can not only provide a longer transmission distance and a higher transmission rate at the transmitting end and the receiving end, but also limit the signal Transmitting in the desired area reduces the interference between signals and the probability of being interfered and detected. Furthermore, spatial multiplexing can be improved through directional antennas, thereby improving network performance. [0003] However, the application of directional antennas brings great challenges to mobile access: the coverage of directional antenna beams is relatively limited, and onl...
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IPC IPC(8): H04W56/00
CPCH04W56/001
Inventor 汪李峰董玮彭宇李智敏赵佳杨爽
Owner 军事科学院系统工程研究院网络信息研究所