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Method for transmission scheduling and device thereof

A technology for transmission scheduling and location information, which is applied in the field of transmission scheduling and can solve problems such as reducing cell performance.

Active Publication Date: 2013-08-14
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The impact of this type of cross-slot interference on system performance is closely related to the deployment scenario and wireless environment. For example, if the distance between adjacent cells is relatively close, or the signal propagation conditions are good, cross-slot interference will seriously reduce the reception status. The performance of the cell; if the distance between adjacent cells is relatively long, or there is effective signal shielding, etc., the cross-slot interference level has little effect on the performance of the cell in the receiving state
[0008] Among the existing proposed solutions, the serious impact of cross-slot interference on system performance cannot be effectively solved, especially figure 2 Uplink and downlink cross-slot interference between UEs shown

Method used

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  • Method for transmission scheduling and device thereof
  • Method for transmission scheduling and device thereof
  • Method for transmission scheduling and device thereof

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Embodiment Construction

[0028] In the embodiment of the present invention, when the base station determines that there is a UE in the local area that simultaneously transmits in different directions with the UE in the adjacent cell, and the UE in the local area is located at the cell edge close to the adjacent cell, it determines that the UE in the local area may interference, and the interference is mainly because the UE in the local area and the UE in the adjacent cell simultaneously transmit in different directions, so the base station at least schedules the uplink and downlink transmission of the UE in the local area to perform the same transmission as the UE in the adjacent cell at the same time. direction of transmission to reduce interference.

[0029] In this embodiment, it is assumed that the adjacent TDD cells in the same network are time-synchronized, and the adjacent cells mentioned here can be adjacent cells of the same frequency or adjacent frequencies; at the same time, they can be of t...

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Abstract

Disclosed is a transmission scheduling method, for reducing cross interference between UEs. The method comprises: a base station obtaining uplink and downlink configuration information of a neighboring cell; the base station determining, according to uplink and downlink configuration information of a local cell and the uplink and downlink configuration information of the neighboring cell, whether a UE in the local cell and a UE in the neighboring cell perform transmission in different directions at the same time; when the UE in the local cell and the UE in the neighboring cell perform transmission in different directions at the same time, the base station determining whether the UE in the local cell is located at a cell edge near the neighboring cell; and when the UE in the local cell suffers from interference, the base station at least scheduling uplink and downlink transmission of the UE in the local cell to transmission in the same direction as the UE in the neighboring cell at the same time. Also disclosed is a device for implementing the method.

Description

technical field [0001] The present invention relates to the communication field, in particular to a transmission scheduling method and device. Background technique [0002] For the basic duplex mode adopted by the cellular system: TDD (Time Division Duplex) mode means that the uplink and downlink use the same working frequency band, and the uplink and downlink signals are transmitted at different time intervals. Guard Period; FDD (Frequency Division Duplex) mode means that the uplink and downlink use different working frequency bands, and the uplink and downlink signals can be transmitted on different frequency carriers at the same time. Guard Band. The frame structure of the LTE (Long Term Evolution) TDD system is slightly more complex, such as figure 1 As shown, a radio frame has a length of 10 ms and includes two types of special sub-frames and regular sub-frames, a total of 10 sub-frames, and each sub-frame is 1 ms. The special subframe is divided into 3 time slots: D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12H04W88/08
CPCH04W72/0426H04W72/27
Inventor 潘学明徐婧沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD