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Method and device for controlling uplink power

A power control and control node technology, applied in the field of communication, can solve problems such as large impact on uplink transmission performance

Inactive Publication Date: 2015-07-15
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Embodiments of the present invention provide an uplink power control method and device, which are used to solve the problem of interference from eNBs in adjacent cells to eNBs in this cell on uplink transmission performance in flexible uplink subframes in an LTE TDD system that dynamically adjusts the configuration of uplink and downlink subframes. high impact issues

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  • Method and device for controlling uplink power
  • Method and device for controlling uplink power
  • Method and device for controlling uplink power

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Embodiment Construction

[0054] In the embodiment of the present invention, the eNB reports its own uplink and downlink business ratio to the control node, and the control node selects an uplink and downlink subframe configuration for each eNB according to the uplink and downlink business ratio reported by each eNB, and for any eNB, the The uplink and downlink subframe configuration of the eNB and the uplink and downlink subframe configuration of the eNB's strong interference neighbor cell are fed back to the eNB, and the eNB determines the Which subframes are flexible uplink subframes, and instruct the UE to adjust the transmission power on the determined flexible uplink subframes, so as to reduce the interference of neighboring eNBs on the eNB of this cell on the flexible uplink subframes, and improve uplink transmission performance.

[0055] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0056] Such as image 3 As...

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Abstract

The invention relates to the technical field of communication, specifically a method and a device for controlling uplink power, which are used for solving the problem that the uplink transmission performance is greatly influenced by the interference of a neighboring cell eNB to a local cell eNB on a flexible uplink sub-frame in an LTE TDD system which dynamically adjusts configurations of an uplink sub-frame and a downlink sub-frame, wherein the method of the invention comprises the steps as follows: the eNB reporting proportion of its own uplink service and its own downlink service to a control node and receiving the configurations of the uplink sub-frame and downlink sub-frame of the eNB, which are transmitted by the control node, and configurations of the uplink sub-frame and the downlink sub-frame of a strong interference neighboring cell of the eNB; and the eNB determining the flexible uplink sub-frame according to the configurations of the uplink sub-frame and downlink sub-frame of the eNB and configurations of the uplink sub-frame and the downlink sub-frame of the strong interference neighboring cell and instructing UE in the local cell to adjust transmitting power of the determined flexible uplink sub-frame.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an uplink power control method and device. Background technique [0002] Currently, Time Division Long Term Evolution (TD-LTE) has seven different uplink and downlink subframe configurations, as shown in Table 1 below: [0003] [0004] Table I [0005] Such as figure 1 As shown, in the traditional LTE Time Division Duplexing (Time Division Duplexing, TDD) system, for an uplink subframe, the evolved base station (evolutional Node B, eNB) receives data from the user equipment (User Equipment, UE) in the cell, At the same time, it is interfered by the UE in the adjacent cell, which belongs to the interference type of the UE interfering with the eNB; for a downlink subframe, the UE receives data from the eNB of the main serving cell, and is interfered by the eNB of the adjacent cell at the same time, which belongs to the eNB interferes with the UE Interference t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/14H04W52/24
CPCH04W52/146H04W52/24H04W52/243H04W72/0446
Inventor 王飞姜大洁
Owner CHINA MOBILE COMM GRP CO LTD
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