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User scheduling method and device

A technology of user scheduling and scheduler, applied in the direction of space transmit diversity, radio transmission system, electrical components, etc., can solve the problems of large difference in receiving and processing performance, poor performance of multi-user pairing transmission, and uneven suppression of interference

Active Publication Date: 2014-06-11
DATANG MOBILE COMM EQUIP CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0023] Embodiments of the present invention provide a user scheduling method and device, which are used to solve the problem of poor multi-user pairing transmission performance on the user equipment side due to large differences in receiving and processing performance at the user equipment side during MU-MIMO scheduling, and inconsistent interference suppression capabilities

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Embodiment Construction

[0045] Embodiments of the present invention propose a MU-MIMO scheduling scheme in an LTE system, which can improve channel estimation accuracy and detection performance of UEs in transmission mode 8 (TM8) and transmission mode 9 (TM9), thereby improving system capacity.

[0046] In order to make the object, 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. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0047] The devices involved in the embodiments of the present invention include network devices and user equipment, and the network devices may be base stations or networ...

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Abstract

The invention discloses a user scheduling method and device. The method includes the steps that a user device pair for carrying out MU-MIMO scheduling is determined by a network device, wherein the user device pair includes the first user device and the second user device; the two user devices of the user device pair are instructed by the network device to carry out port detection; for at least one user device in the user device pair, the network device sends a corresponding reference signal and a corresponding traffic channel on only part of ports which are detected under the instruction of the network device so that the port for the network device to send the reference signal and the traffic channel to the first user device can be different from the port for the network device to send the reference signal and the traffic channel to the second user device. By means of the user scheduling method and device, the problem that because receiving and processing performance of user device sides greatly differs during MU-MIMO scheduling, performance of transmission through multiple users of the user device sides in a matched mode is poor if the barrage jamming ability is not uniform can be solved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a user scheduling method and device. Background technique [0002] The time-frequency domain positions of the reference signals of port7 (port 7) and port8 (port 8) in the LTE (Long Term Evolution) system are as follows: figure 1 As shown, the time-frequency positions of port7 / 8 / 11 / 13 and port9 / 10 / 12 / 14 are different, and the four pilot sequences of port7 / 8 / 11 / 13 are passed through orthogonal sequences (Walsh matrix) realizes the orthogonalization of time-frequency sequences and multiplexing of time-frequency resources, and port9 / 10 / 12 / 14 also adopts the same multiplexing method. [0003] MU-MIMO (Multi-User Multiple Input Multiple Output, multi-user-multiple input multiple output) means that in one scheduling time unit (Transmission Time Interval, TTI), make full use of the spatial independence of the channel and use the same time-frequency resources Multiple UEs ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04B7/04
CPCH04B7/0452H04W72/12
Inventor 李远军汪玲苏进喜
Owner DATANG MOBILE COMM EQUIP CO LTD