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Uplink power control method, equipment and system

A technology of power control and power control parameters, which is applied in the field of communication and can solve problems such as interference and UE power consumption between cells

Active Publication Date: 2013-09-25
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the transmission performance of the UE in various uplink subframes in a dynamic TDD system, the transmit power of different uplink subframes can be adjusted through the power control command word, but the dynamic range of the power control command word is very small, usually within plus or minus 2dB. It cannot meet the requirements; it is also possible to configure uplink power control parameters corresponding to a unified transmit power for each UE, but in other subframes (such as downlink subframes), it will cause unnecessary UE power consumption and inter-cell interference
Therefore, the existing technology cannot flexibly control the uplink transmit power while avoiding power consumption and interference

Method used

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  • Uplink power control method, equipment and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as Figure 4 As shown, it is a flow chart of the uplink power control method on the network side in Embodiment 1 of the present invention, and its specific processing flow is as follows:

[0037] Step 41 , the network side device configures at least two groups of uplink power control parameters corresponding to the uplink signal for the UE.

[0038] In Embodiment 1 of the present invention, the network side device may be, but not limited to, a base station.

[0039] The foregoing uplink signal may be, but not limited to, a Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH), a Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH) or an SRS.

[0040] The uplink power control parameter of the uplink signal is used for the UE to determine the transmission power of the uplink signal. In Embodiment 1 of the present invention, the uplink power control parameter of the uplink signal may be but not limited to the received power target...

Embodiment 2

[0073] Based on the uplink power control method proposed in Embodiment 1 of the present invention, Embodiment 2 of the present invention proposes a network side device, the structure of which is as follows Figure 5 shown, including:

[0074] A control parameter group configuration unit 51, configured to configure at least two groups of uplink power control parameters corresponding to the uplink signal for the UE;

[0075] The control parameter group sending unit 52 is configured to notify the UE of each group of uplink power control parameters configured by the control parameter group configuring unit 51, so that the UE determines the transmission power of the uplink signal.

[0076] In a preferred implementation manner of Embodiment 2 of the present invention, the control parameter group sending unit 52 is specifically configured to notify each group of uplink power control parameters configured by the control parameter group configuration unit 51 to the UE.

[0077] In a pr...

Embodiment 3

[0104] Such as Figure 6 As shown, it is a flow chart of the uplink power control method on the user side in Embodiment 3 of the present invention, and its specific processing flow is as follows:

[0105] In step 61, the UE obtains each set of uplink power control parameters corresponding to the uplink signal notified by the network side device.

[0106] Wherein, the UE may, but not limited to, obtain each group of uplink power control parameters corresponding to the uplink signal notified by the network side device through high layer signaling.

[0107] The process of configuring and sending the uplink power control parameter group by the network side device will not be repeated here.

[0108] Step 62, when the uplink signal needs to be sent, the UE selects a group of uplink power control parameters from the groups of uplink power control parameters notified by the network side equipment.

[0109] The UE selects uplink power control parameters in the following three ways, b...

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Abstract

The invention discloses an uplink power control method, equipment and system. The method comprises the steps that network side equipment configures at least two sets of uplink power control parameters corresponding to uplink signals for user equipment; the user equipment is informed with the configured sets of uplink power control parameters, so that the user equipment determines the emission power of the uplink signals. According to the technical scheme, the uplink emission power can be controlled flexibly.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to an uplink power control method, device and system. Background technique [0002] In a Time Division Duplex (TDD) system, uplink transmission and downlink transmission use the same frequency domain resources and different time domain resources, that is, uplink data and downlink data are transmitted on different subframes. Common TDD systems include Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system and Time Division-Long Term Evolution (TD-LTE). In these common TDD systems Among them, the division of uplink subframes and downlink subframes is static or semi-static. Usually, in the network planning process, the division method of uplink and downlink subframes is determined according to the cell type and the approximate business ratio, and this division method remains unchanged. This is a relatively simple approach in the context of large m...

Claims

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Application Information

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IPC IPC(8): H04W52/14H04W52/18
CPCH04W52/146H04W52/244H04W52/226H04W52/281H04W52/58H04W52/04
Inventor 潘学明刘美沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD
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