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Method and device for controlling uplink transmission power of UE, UE and base station

A transmission power control and transmission power technology, applied in the communication field, can solve the problems of UE uplink transmission power control and large difference in transmission power under undisclosed dual connectivity

Active Publication Date: 2018-05-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the uplink transmission power required to send data to the micro base station is quite different from the uplink transmission power required to send data to the macro base station, how to realize the uplink transmission of the UE under the dual connectivity is not disclosed in the prior art transmit power control

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  • Method and device for controlling uplink transmission power of UE, UE and base station
  • Method and device for controlling uplink transmission power of UE, UE and base station
  • Method and device for controlling uplink transmission power of UE, UE and base station

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Embodiment Construction

[0116] In the LTE-A Rel-12 version, SCE WI introduces the dual connectivity feature, that is, a UE can connect to at least two base stations at the same time, for example, connect to a macro base station and a micro base station at the same time. The macro base station and the micro base station can be of the same frequency or can be It is different frequency. Due to the small coverage of the micro base station, if the UE moves fast, it is easy to frequently enter the coverage area of ​​another micro base station from the coverage area of ​​one micro base station, resulting in frequent handover. Dual connectivity allows the UE to be connected to both the macro base station and the micro base station at the same time. Mobility management-related content and real-time services such as VoIP (Voice over Internet Protocol, VoIP) are provided by the macro base station for the UE, while the micro base station is only for the UE. To provide data services, this kind of dual connectivit...

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Abstract

The embodiment of the present invention discloses a method, device, UE and base station for controlling uplink transmission power of UE. The method includes: determining subframe configuration information, and the subframe configuration information is used to indicate each subframe in a radio frame The base station corresponding to the frame; determine the static power control parameters corresponding to each base station; determine the TPC adjustment value of the current subframe; determine the current The uplink transmit power of the subframe. The embodiments of the present invention can realize the control of uplink transmission power when the UE sends data to different base stations when the UE is connected to at least two base stations.

Description

technical field [0001] The present invention relates to the communication field, and in particular to a user equipment (User Equipment, UE) uplink transmission power control method, device, UE and base station. Background technique [0002] 3rd Generation Partnership Project Long Term Evolution-Advanced (LTE-A) Release 10 / 11 / 12 (Rel-10 / 11 / 12) is the 3rd Generation Partnership Project Long Term Evolution (LTE) Advanced (LTE) Release 8 / 9 (Rel -8 / 9) Technology enhancement, LTE-A system has higher bandwidth requirements than LTE system, supporting peak data rate up to 1Gbts / s. In order to meet the requirements of LTE-A, the LTE-A system uses the carrier aggregation (Component Aggregation, CA) technology as its method to expand the system bandwidth, and uses a large number of multiple-input multiple-output (Multiple-Input Multiple-Output, MIMO) enhancement technology and Adaptive technology increases data rates and system performance. [0003] In the LTE-A Rel-12 version, enhan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/18
CPCH04W52/146H04W52/18H04W52/228H04W52/248H04W52/362H04W52/244H04W52/04H04W72/0473
Inventor 张兴炜闫志宇
Owner HUAWEI TECH CO LTD