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Sea area large-scale antenna planar array beam selection and user scheduling method

A large-scale antenna and user scheduling technology, applied in wireless communications, radio transmission systems, electrical components, etc., can solve problems such as inability to adapt to time-varying channels, high computational complexity, and local area congestion, and achieve near-optimal spectral efficiency. , The effect of low algorithm complexity and fast scheduling speed

Active Publication Date: 2018-12-07
NANTONG UNIVERSITY +1
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Problems solved by technology

[0003] The overall user distribution in the sea scene is sparse, but it is crowded in the local area so that it is impossible to distinguish these users in the angle domain
Therefore, we need to schedule some users to serve to ensure the maximum weighted sum rate. The traditional scheduling method is based on the exhaustive method, scheduling the user combination with the largest sum rate for service, although this algorithm can schedule the best combination of users to be served , but it cannot adapt to the time-varying channel in the actual system, and the calculation complexity is high

Method used

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  • Sea area large-scale antenna planar array beam selection and user scheduling method
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  • Sea area large-scale antenna planar array beam selection and user scheduling method

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specific Embodiment 1

[0045] like Figure 1-4 As shown, this application provides a beam selection and user scheduling method for a large-scale antenna planar array in the sea area. The beam selection and user scheduling steps are as follows:

[0046] Step R1, the AIS system interacts with the shore-based base station equipped with a large-scale antenna planar array to obtain the location information of each user; then obtain the height information of the shore-based base station and the height information of the ship terminal through the altimeter;

[0047] Step R2, according to the user position information obtained in step R1, the height information of the shore base station and the ship terminal, divide the sea area covered by the beam corresponding to the large-scale antenna planar array, and divide each user into each corresponding beam;

[0048] Step R3, select the user with the highest priority in each beam, and put them into the set of users to be served in turn;

[0049] Step R4. In each...

specific Embodiment 2

[0076] This embodiment is basically the same as Embodiment 1, except that each beam corresponds to 10 users.

specific Embodiment 3

[0077] This embodiment is basically the same as Embodiment 1, except that each beam corresponds to 5 users.

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Abstract

The invention provides a sea area large-scale antenna planar array beam selection and user scheduling method, and relates to the technical field of sea area scheduling. The method comprises the stepsas follows: R1, a shipborne AIS system performs information interaction with a shore-based base station equipped with a large-scale antenna planar array, and acquires position information of each user; and then height information of the shore-based base station and height information of a ship terminal are acquired via a height indicator; R2, a sea area range covered by beams corresponding to thelarge-scale antenna planar array is divided according to the user position information, and the height information of the shore-based base station and the ship terminal acquired in the step R1, and each user is divided into each corresponding beam; R3, the user with the highest priority is selected from each beam, and sequentially put into the set of users to be served; and R4, in each schedulingperiod, the user in the set of users to be served is scheduled according to a system weight and rate maximization criterion for service, and the unused beams are closed. According to the method provided by the invention, the beam selection and user scheduling speed is fast, and the algorithm complexity is low.

Description

technical field [0001] The present application relates to the technical field of sea area scheduling, and in particular to a beam selection and user scheduling method of a large-scale antenna planar array in the sea area. Background technique [0002] With the rapid development of the marine industry, marine tourism, offshore aquaculture and marine mineral exploration, marine multimedia services are becoming more and more important. In order to improve the transmission rate of the maritime communication system, we considered using a massive multiple-input multiple-output system (MMIMO) in the base station. First, MMIMO can deeply mine spatial dimension resources, so that multiple users can communicate with the base station on the same time-frequency resource. Communicate at the same time, thereby greatly increasing spectrum resources; second, MMIMO can greatly reduce uplink and downlink transmission power, thereby improving power efficiency; third, MMIMO concentrates beams i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0452H04W72/12
CPCH04B7/0452H04W72/121
Inventor 孙强陆小春杨永杰王珏冯伟苏厉唐伟徐晨
Owner NANTONG UNIVERSITY
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