Uplink power optimal allocation method and device and mobile terminal

A mobile terminal and power optimization technology, applied in the field of wireless communication, can solve the problems of reducing system communication capacity, low signal-to-noise ratio, and reducing communication efficiency, and achieve the effects of improving uplink capacity, maximizing system capacity, and improving power distribution efficiency

Inactive Publication Date: 2017-08-08
SHANGHAI ZTE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The general principle of power allocation is that the farther the distance, the greater the transmission power allocated, but if this is done, it is the lowest power configuration, which makes the short-board effect more obvious, because the distance is not necessarily true. It reflects the quality of the transmission signal, and the farther the distance, the smaller the signal-to-noise ratio. Allocating more transmit power to channels with poor signal quality will reduce the communication capacity of the system and reduce communication efficiency.

Method used

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  • Uplink power optimal allocation method and device and mobile terminal
  • Uplink power optimal allocation method and device and mobile terminal
  • Uplink power optimal allocation method and device and mobile terminal

Examples

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no. 1 example

[0047] In the first embodiment of the present invention, a method for optimal allocation of uplink power is applied to the case where more than two communication connections are established between the mobile terminal and the base station, such as figure 1 As shown, the method includes the following specific steps:

[0048] Step S101, the mobile terminal obtains the transmission quality of the downlink channel in each communication connection;

[0049] Specifically, as known in the art, a communication connection is established between the mobile terminal and each base station. In this embodiment, the information capable of reflecting the transmission quality of the downlink channel includes: a signal-to-noise ratio of the downlink channel, or a CQI of the downlink channel. The larger the value of these two kinds of information, the better the transmission quality of the downlink channel respectively. Since the signal-to-noise ratio of the downlink channel can be measured by ...

no. 2 example

[0059] The second embodiment of the present invention is a method for optimal allocation of uplink power. The method described in this embodiment is roughly the same as that in the first embodiment, the difference is that, as figure 2 As shown, the described method of the present embodiment also includes the following specific steps:

[0060] Step S100, before step S101, the mobile terminal judges whether the sum of the transmission powers set by each base station for the mobile terminal on the corresponding communication connections based on the power control process exceeds the upper limit of the total transmission power capability of the mobile terminal on all communication connections;

[0061] When the upper limit of the total transmission power capability of the mobile terminal on all communication connections is exceeded, step S101 is performed again.

no. 3 example

[0062] The third embodiment of the present invention corresponds to the first embodiment. This embodiment introduces an uplink power optimization allocation device, which is located at the mobile terminal side, such as image 3 As shown, the device includes the following components:

[0063] 1) an acquisition module 301, configured to acquire the transmission quality of the downlink channel in each communication connection;

[0064] Specifically, as known in the art, a communication connection is established between the mobile terminal and each base station. In this embodiment, the information capable of reflecting the transmission quality of the downlink channel includes: a signal-to-noise ratio of the downlink channel, or a CQI of the downlink channel. The larger the value of these two kinds of information, the better the transmission quality of the downlink channel respectively. Since the signal-to-noise ratio of the downlink channel can be measured and obtained by the exi...

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Abstract

The invention discloses an uplink power optimal allocation method and device and a mobile terminal. The method comprises the steps of in a case that more than two communication connections are established between the mobile terminal and a base station, according to transmission quality of a downlink channel in each communication connection, allocating transmission power of the mobile terminal on each communication connection. According to the uplink power optimal allocation method and device and the mobile terminal which are disclosed by the invention, according to a water filling principle, in a case of considering channel quality, uplink power of double connections or multiple connections is subjected to optimal allocation, so that power allocation efficiency of the mobile terminal is improved, uplink capacity is promoted and system capacity reaches the maximum.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to an uplink power optimization allocation method, device and mobile terminal. Background technique [0002] Dual Link means that the UE uses the resources of two base stations eNB connected by non-ideal backhaul at the same time. The UE can simultaneously use the primary base station MeNB and multiple serving cells in the secondary base station SeNB Serving Cell resources to send and receive data, which can effectively improve the throughput of a single user. [0003] In dual connectivity, the UE can use the macro base station as the MeNB and the micro base station as the SeNB. Compared with the traditional method of single connection between the UE and the micro base station, the dual connection can effectively reduce the number of handovers and improve the cell boundary performance of the micro base station . [0004] In this case, the UE is faced with th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04W72/52H04W72/04Y02D30/70
Inventor 赵黎波葛林娜姬舒平
Owner SHANGHAI ZTE SOFTWARE CO LTD
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