Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and base station for tuning downlink transmission power

A technology of transmission power and power, applied in the direction of transmission control/equalization, communication between multiple stations, etc., can solve problems such as no clear method

Inactive Publication Date: 2012-08-08
TD TECH COMM TECH LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] That is to say, there is currently no clear method for how to adjust the downlink transmission power so that it can well meet the above three requirements.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and base station for tuning downlink transmission power
  • Method and base station for tuning downlink transmission power
  • Method and base station for tuning downlink transmission power

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0128] Embodiment 2 optimizes Embodiment 1.

[0129] As previously analyzed, the first embodiment is ΣTXP i-MIN In the case of ≤M, the scheme implemented to meet the requirement A, and the second embodiment is that the configuration error of the upper layer equipment causes ∑TXP i-MIN Treatment plan for >M.

[0130] When ∑TXP appears i-MIN When >M, it means that requirement A cannot be satisfied even if the transmit power of all UEs is set to the minimum value of its own power. However, as analyzed above, requirement A must be met by the system, otherwise the hardware will be overloaded, the signal will be damaged, and normal communication will not be possible. Therefore, if this happens, requirement A can only be satisfied by sacrificing requirement B. It is to use less than or equal to M and ∑TXP i The power of each UE is reduced according to the ratio of the ratio, and the reduced power is used as the final transmission power.

[0131] In this case, requirement A is me...

Embodiment 4

[0216] For the Node B devices in Embodiment 4 and the working process of the units in each device, refer to Method Embodiment 4, which will not be repeated here.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for adjusting downlink transmitted power. When power sum of all UE in one time slot is ensured larger than a first threshold, the method comprises steps of a, setting a ratio which is smaller or equal to the ratio of the first threshold to the power sum of all power, b, judging whether each scaling down power has a minimum value smaller than the user equipment-self power or not, if the minimum value exists, then step c can be executed, if the minimum value does not exist, then step e can be executed, step c, setting a power of an user equipment with power smaller than the minimum value of the user equipment-self power as the minimum value of the user equipment-self power, the other power can execute step d, reducing the radio and using the radio which is subtracted as a lasted radio value and then executes step b, step e, scaling down each power in a radio. The method for adjusting downlink transmitted power can meet requirements upon downlink transmitted power for 3GPP, guarantees normal operation of system hardware, increases accuracy of signal transmission, and enables the system to work in good conditions. The invention further provides a base station simultaneously.

Description

technical field [0001] The invention relates to the technical field of time division synchronization-code division multiple access (TD-SCDMA) power control, in particular to a method for adjusting downlink transmission power and a base station for realizing the method. Background technique [0002] The TD-SCDMA system is an interference-limited system, and necessary power control can effectively limit the interference level inside the system, thereby reducing the interference within and between cells. Additionally, power control can reduce user equipment (UE) power consumption. [0003] Generally, one base station (Node B) is connected to multiple UEs, and downlink transmission power control needs to be performed on each UE separately. For each UE, the Node B should control the transmission power for the UE within a certain range: neither too large, so as not to affect other UEs; nor too small, so as not to affect normal communication. According to the specifications of th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005H04B7/26
Inventor 徐辉魏歆
Owner TD TECH COMM TECH LTD