Method for controlling transmitting power of sounding reference signal (SRS), user equipment (UE) and base station

A technology for sounding reference signals and transmission power, which is applied in power management, wireless communication, multiple use of transmission paths, etc., can solve problems such as the inability to accurately realize the transmission power of sounding reference signals, and achieve the effect of flexible transmission power control

Active Publication Date: 2013-09-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Embodiments of the present invention provide a method for controlling transmission power of sounding reference signals, a method for processing parameter inform

Method used

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  • Method for controlling transmitting power of sounding reference signal (SRS), user equipment (UE) and base station
  • Method for controlling transmitting power of sounding reference signal (SRS), user equipment (UE) and base station
  • Method for controlling transmitting power of sounding reference signal (SRS), user equipment (UE) and base station

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Effect test

Embodiment 1

[0090] Such as figure 1 As shown, it is a flowchart of a method for controlling the transmission power of a sounding reference signal of the present invention for aperiodic SRS embodiment 1. The method includes:

[0091] Step 101: The network side configures multiple sets of SRS power control parameters or multiple SRS power compensation values ​​for the UE through radio resource control protocol (RRC) signaling;

[0092] Step 102: The UE selects SRS power control parameters according to the correspondence between multiple sets of SRS power control parameters or multiple SRS power compensation values ​​and specific signaling content that triggers the A-SRS command in the DCI format (format);

[0093] For example, the network side configures three sets of sounding reference signal power control parameters for the UE through RRC signaling, namely {the first set of power control parameters, the second set of power control parameters, the third set of power control parameters}, and the p...

Embodiment 2

[0100] Such as figure 2 Shown is a flow chart of the second embodiment of the aperiodic SRS control method for sounding reference signal transmission power according to the present invention. The method includes:

[0101] Step 201: The network side configures multiple sets of SRS power control parameters or multiple SRS power compensation values ​​for the UE through radio resource control protocol (RRC) signaling;

[0102] Step 202: The UE selects SRS power control parameters according to multiple sets of SRS power control parameters or the corresponding relationship between multiple SRS power compensation values ​​and DCI formats.

[0103] For example, the network side configures 5 sets of sounding reference signal power control parameters for the UE through RRC signaling, namely {the first set of power control parameters, the second set of power control parameters,..., the fifth set of power control parameters}, and At this time, the power control parameter corresponds to the DCI ...

Embodiment 3

[0109] Such as image 3 Shown is a flow chart of the third embodiment of aperiodic SRS using the method for controlling sounding reference signal transmission power according to the present invention. The method includes:

[0110] Step 301: The network side configures multiple sets of SRS power control parameters or multiple SRS power compensation values ​​for the UE through radio resource control protocol (RRC) signaling;

[0111] Step 302: The UE selects SRS power control parameters according to the correspondence between multiple sets of SRS power control parameters or multiple SRS power compensation values ​​and the DCI format and the content of the A-SRS trigger command in the DCI format;

[0112] For example, the network side configures 7 sets of sounding reference signal power control parameters for the UE through RRC signaling, namely {the first set of power control parameters, the second set of power control parameters,..., the seventh set of power control parameters}, and A...

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Abstract

The invention provides a method for controlling the transmitting power of a sounding reference signal (SRS), user equipment (UE) and a base station. The method for controlling the transmitting power of the SRS comprises the following steps that the UE acquires multiple sets of SRS power control parameters and/or multiple SRS power compensation values provided by the base station for the UE; and the UE determines the transmitting power of the SRS by using one set of the multiple sets of SRS power control parameters and/or one of the multiple SRS power compensation values. According to the method for controlling the transmitting power of the SRS, the UE and the base station, multiple sets of SRS power control parameters and/or multiple SRS power compensation values are obtained from the base station, so that the transmitting power of SRSs transmitted specific to different aims can be controlled more flexibly, the accuracy of channel measurement is ensured, interference is reduced, and the power consumption of the UE is saved.

Description

Technical field [0001] The present invention relates to the field of digital communication, and in particular to a method for controlling the transmission power of sounding reference signals, a method for processing parameter information, user equipment and a base station. Background technique [0002] The uplink physical channels of the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) system include Physical Random Access Channel (PRACH) and Physical Uplink Shared Channel (Physical Uplink Shared Channel). PUSCH) and Physical Uplink Control Channel (PUCCH for short). The LTE uplink signal adopts single-carrier orthogonal frequency division multiplexing (OFDM) technology, and the reference signal and data are multiplexed together in a time division multiplexing mode (TDM). The uplink reference signal is divided into a demodulation reference signal (DM-RS) and a sounding reference signal (SRS). The SRS is further divided into aperiodic SRS (Aperiodic Sounding Re...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04L1/00H04W52/32
CPCH04W52/146H04W52/247H04W52/325
Inventor 林志嵘任璐戴博夏树强
Owner ZTE CORP
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