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Method and device for multi-user scheduling

A multi-user scheduling and user technology, applied in the direction of location information-based services, access restrictions, electrical components, etc., can solve the problems of consuming system resources and high complexity of multi-user scheduling, and reduce the number of downlink channel states and control Effect of Signaling Overhead

Active Publication Date: 2009-10-28
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0024] In view of this, the main purpose of the present invention is to propose a multi-user scheduling method and its device to solve the problems in the prior art that the multi-user scheduling has high complexity and consumes a large amount of system resources

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Embodiment Construction

[0065] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0066] Aiming at the deficiencies of the prior art, the present invention proposes a multi-user scheduling method based on the user's angle of arrival (Direction Of Arrival, DOA). figure 1 It is a principle diagram of MU-MIMO multi-user scheduling based on angle of arrival in the embodiment of the present invention. Such as figure 1 As shown, the base station to which the cell belongs has two antennas, which can accommodate two users, and there are four users within the coverage area of ​​the cell. The BS measures the uplink channels of all users and calculates the DOA of all users. Then user selection is performed according to the selection principle based on DOA, for example, the two users with the largest separation of DOA angles are...

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Abstract

The invention provides a method for multi-user scheduling, which comprises the following steps: acquiring direction of arrival (DOA) information of all users to be scheduled in a cell; and selecting the users on the basis of the DOA information of all the users to be scheduled in the cell. The invention also provides a device for the multi-user scheduling, which comprises the following units: a DOA acquiring unit for acquiring the DOA information of all the users to be scheduled in the cell; and a user pairing unit for selecting the users on the basis of the DOA information of all the users to be scheduled in the cell. Through the method and the device for the multi-user scheduling, the complexity of the multi-user scheduling in the prior art can be reduced, thus system resources required by the multi-user scheduling are reduced.

Description

technical field [0001] The present invention relates to the field of wireless resource management, in particular to a method and device for multi-user scheduling. Background technique [0002] Future mobile communication systems are developing in the direction of large bandwidth, high capacity, high availability and high reliability. Multiple Input and Multiple Output (Multiple Input Multiple Output, MIMO) technology, as an effective means to increase capacity, is widely used in mobile communication systems designed for the future, such as Long-Term Evolution (LongTime Evolution, LTE), global microwave access interoperability (World Interoperability for Microwave Access, WIMAX), Super 3G (Beyond 3G, B3G) and other systems. The multi-user MIMO (Multi-User Multiple Input Multiple Output, MU-MIMO) in the MIMO technology can multiplex the data of multiple users to be scheduled on the same time-frequency resource, and schedule the users to be scheduled in the cell. Thereby util...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W48/16H04W72/12
Inventor 侯云哲孙韶辉吴群英赵锐
Owner DATANG MOBILE COMM EQUIP CO LTD
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