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Method and corresponding device for controlling uplink control channel power

A technology of link control channel and power control, applied in transmission path sub-channel allocation, power management, signaling allocation, etc.

Active Publication Date: 2013-04-10
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order to solve the technical problems existing in the prior art, the present invention proposes a power control scheme for the uplink control channel in a coordinated multi-point system, considering the difference between single reception point reception and multi-reception point reception of the uplink control channel Open-loop power control mechanism to optimize the power control of the uplink control channel for CoMP in various scenarios

Method used

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  • Method and corresponding device for controlling uplink control channel power
  • Method and corresponding device for controlling uplink control channel power
  • Method and corresponding device for controlling uplink control channel power

Examples

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Embodiment Construction

[0019] figure 1 A flowchart showing a method for power control of an uplink control channel in a coordinated multi-point system according to an exemplary embodiment of the present invention.

[0020] like figure 1 As shown, in step S101, the method flow starts.

[0021] Although the Physical Uplink Shared Channel (PUSCH) is jointly received by multiple points in the coordinated multi-point system, the Physical Uplink Control Channel (PUCCH) in the system can be received by a single reception point or by multiple reception points, That is, the PUCCH power control may be performed for reception at a single reception point, or for reception at multiple reception points. exist figure 1 These two cases are shown in condition boxes 110 and 120 of , respectively.

[0022] When the uplink control channel is received by a single receiving point, in step S102, power control of the uplink control channel is performed based on the measured path loss from the single receiving point to ...

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Abstract

The invention provides a method for controlling uplink control channel power in a multi-point cooperative system according to an implement method. The method includes that under the condition that a single receiving point receives an uplink control channel, on the basis of measured loss of a path from the single receiving point to user equipment, uplink control channel power control is conducted; and under the condition that multiple receiving points receive the uplink control channel, disturbance among cells caused by the fact that the multiple receiving points receive and combine gain is reduced by reducing uplink control channel transmission power of the user equipment, and uplink control channel power control is conducted. An implement method of the invention further provides a device for controlling the uplink control channel power in the multi-point cooperative system and a corresponding base station device.

Description

technical field [0001] The present application generally relates to wireless communication technologies, and in particular relates to a power control method and corresponding device for an uplink control channel. Background technique [0002] In the document 3GPP TS36.213V10.1.0 entitled "LTE: Evolved Universal Terrestrial Radio Access (E-UTRA) Physical layer procedures (Release 10)" in March 2011, the physical uplink control channel (PUCCH) is defined The power control of , which document is hereby incorporated by reference. If the serving cell c is the primary cell, the user equipment transmission power for physical uplink control channel transmission in the i-th subframe is given by the following formula: [0003] P PUCCH ( i ) = min P CMAX , ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/14H04W52/24
CPCH04W52/146H04W52/242H04W52/325H04W52/40H04L5/0053H04W24/02H04W52/38
Inventor 刘瑾朱旭东杨育波尚鹏
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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