A method and device for transmission scheduling

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: 2011-12-07
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 ...

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  • A method and device for transmission scheduling
  • A method and device for transmission scheduling
  • A method and device for transmission scheduling

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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

The invention discloses a method for transmission scheduling, which is used for reducing inter-UE (User Equipment) cross interference. The method provided by the invention comprises the following steps that: a base station acquires uplink and downlink configuration information of a neighboring cell; according to the uplink and downlink configuration information of a local cell and the neighboringcell, the base station judges whether the UE of the local cell and the UE of the neighboring cell simultaneously proceed to transmit in different directions; when the UE of the local cell and the UE of the neighboring cell simultaneously proceed to transmit in different directions, the base station judges whether the UE of the local cell is positioned near the edge of the neighboring cell; and when the UE of the local cell is interfered, uplink and downlink transmission of the UE of the local cell is at least scheduled by the base station to perform transmission together with the UE of the neighboring cell in the same direction. The invention also discloses 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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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
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