Method and device for judging whether wireless communication user equipment is paired and performing pairing

A technology of user equipment and wireless communication, applied in radio transmission systems, diversity/multi-antenna systems, space transmit diversity, etc., can solve the problem that there is no monotonic relationship between angular separation and channel correlation, and it is difficult to determine user equipment pairing, Angle interval and channel correlation are difficult to pair with wireless communication user equipment, etc., to achieve the effect of low storage and calculation, simple solution, and reduced load

Active Publication Date: 2011-11-30
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The embodiment of the present invention provides a method and device for judging whether wireless communication user equipment is paired, which is used to solve the problem in the prior art that it is difficult to determine the user equipment in a scenario where there is no monotonic relationship between the angular interval and the channel correlation. The question of wheth

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  • Method and device for judging whether wireless communication user equipment is paired and performing pairing
  • Method and device for judging whether wireless communication user equipment is paired and performing pairing
  • Method and device for judging whether wireless communication user equipment is paired and performing pairing

Examples

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example 1

[0108] 1. Estimate the angles of all user equipment participating in the scheduling, denoted as θ k , k=1, L, K, where K represents the number of user equipments. For example, when each cell is scheduled separately, it means all the UEs participating in the scheduling in a certain cell, and when multiple cells perform joint scheduling, it means participating in the joint All UEs participating in the scheduling in the scheduled multiple cells;

[0109] 2. Determine the current user equipment set U according to the scheduling, wherein the scheduling is normally scheduled according to SU (single user equipment);

[0110] 3. Traverse the current user equipment set U, and perform pairing for each user equipment.

[0111] specific:

[0112] 3-1. Traverse the user equipment that is not scheduled in the current subframe but has data to be transmitted, select the user equipment with a CQI value greater than the first information threshold value, and then determine the relationship be...

example 2

[0117] 1. Estimate the angle of all user equipment, denoted as θ k , k=1, L, K, where K represents the number of user equipments;

[0118] 2. Determine the current user equipment set U according to the scheduling, wherein the scheduling is normally scheduled according to the SU;

[0119] 3. Traverse the current user equipment set U, and perform pairing for each user equipment.

[0120] specific:

[0121] 3-1. Traverse the user equipments that are not scheduled in the current subframe but have data to be transmitted, select the user equipment with a CQI value greater than the first information threshold value, and then continue to select the corresponding CQI value and the target user equipment from the selected user equipment The absolute value of the difference between the CQI values ​​of the user equipments is less than the second information threshold value, and the last selected user equipments are formed into the user equipment set S;

[0122] 3-2. Determine the correl...

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Abstract

Embodiments of this application relate to the technical field of wireless communication, and more particularly to a method and a device for determining whether wireless communication user equipments match, which are used to solve the problem that it is very difficult to determine whether user equipments match in a scenario that there is no monotonous relationship between an angle interval and a channel dependence. A method for determining whether wireless communication user equipments match provided in an embodiment of this application comprises: according to an array response vector of a first user equipment and an array response vector of a second user equipment, determining a dependence value of the first user equipment and the second user equipment; and if the dependence value is not greater than a dependence threshold value, determining that the first user equipment and the second user equipment match. The method of the embodiment of this application imposes no requirement on the antenna interval, and can determine whether user equipments match in a scenario that there is no monotonous relationship between an angle interval and a channel dependence. Further provided are a method and a device for matching wireless communication user equipments.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for judging whether wireless communication user equipment is paired and for pairing. Background technique [0002] At present, the pairing algorithm of MU-MIMO (Multiple-user MIMO, multi-user multi-antenna) is mainly based on the pairing algorithm of user equipment angle information. [0003] Pairing algorithm based on angle information: its core idea is to determine whether the user equipment is paired according to the angular distance between the user equipment and the power of the user equipment. The method considers that the larger the angle between the user equipments, the greater the channel space isolation between the user equipments, the smaller the corresponding channel correlation, and the smaller the interference between the two user equipments after pairing. Therefore, it is required that the angle difference between the use...

Claims

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Application Information

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IPC IPC(8): H04B7/04
CPCH04B7/04H04B7/0413
Inventor 张静吴凯
Owner DATANG MOBILE COMM EQUIP CO LTD
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