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Method for controlling power

A power control and power technology, applied in power management, wireless communication, electrical components, etc., can solve problems such as unfavorable network performance improvement and network interference, and achieve good compatibility, reduce interference, and improve performance and capacity.

Inactive Publication Date: 2010-12-01
TD TECH COMM TECH LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

According to the existing protocol, when reconfiguration occurs, the UE needs to send data according to the new configuration parameters, and the initial transmission power of the uplink dedicated physical channel (DPCH) is set by the radio link control (RRC) layer through open-loop power control, so that , the UE will use the open-loop transmit power to send uplink data; and the UE using the open-loop transmit power to transmit will cause greater interference to the surrounding network, which is not conducive to network performance improvement
[0005] It can be seen that the power control method in the existing resource reconfiguration process has the problem of causing large interference to the network

Method used

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Embodiment Construction

[0018] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] In practical applications, when the resource reconfiguration of the UE does not lead to changing the cell where the UE is located, that is, when the resource reconfiguration occurs in the cell, since the channel resources of the UE before and after the resource reconfiguration belong to the same carrier or the same cell When carriers of different frequency points are used, the channel condition of the UE will not change due to the resource reconfiguration.

[0020] Based on this, the main idea of ​​the present invention is that when resource reconfiguration occurs in the same cell, a closed-loop power control method is used to determine the initial DPCH transmit power after resource reconfiguration based on the DPCH transmit power b...

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Abstract

The invention discloses a method for controlling power. The method comprises the following steps that: a, when determining that resource reconfiguration is required in a cell for user equipment (UE), a network side informs the UE of a power migration parameter S of a dedicated physical channel (DPCH) preset by the network side through resource reconfiguration information; and b, after the UE judges that the resource reconfiguration is required in the cell according to the resource reconfiguration information, and the resource reconfiguration is finished, the UE determines an initial transmitting power PDPCH-new of the DPCH after the resource reconfiguration by using the power migration parameter S in the information and a transmitting power PDPCH-old of the DPCH before the resource reconfiguration. Interference on the network during the resource reconfiguration can be reduced by the method.

Description

technical field [0001] The invention relates to a power control technology, in particular to a power control method during resource reconfiguration. Background technique [0002] The TD-SCDMA system has established test networks and commercial networks in many cities, supporting multiple services or service combinations, such as adaptive multi-rate voice (AMR), video telephony (VP), and packet based on 3GPP version 4 (R4). Service (PS), PS based on high-speed downlink data service (HSDPA) / high-speed uplink data service (HSUPA), multi-session of AMR+HSDPA, etc. [0003] In the TD-SCDMA system, the utilization rate of network resources is improved by introducing dynamic channel configuration technology (DCCC). Specifically, when a user equipment (UE) accesses, the network side will configure corresponding channel resources to the UE according to the UE's service request, network resource usage, load, etc.; and when the UE's service situation changes or the network side When ...

Claims

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Application Information

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IPC IPC(8): H04W52/22H04W52/24H04W72/08
Inventor 王浩然袁乃华沈东栋佟学俭
Owner TD TECH COMM TECH LTD
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