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Measuring and reporting method of power climbing space and terminal

A technology of power uplift and terminal, applied in the field of communication, can solve the problem that PUSCH and PUCCH cannot be sent at the same time, and achieve the effect of avoiding confusion

Active Publication Date: 2010-07-14
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] It should be noted that in the LTE system, in order to maintain the single-carrier characteristics of the uplink signal, PUSCH and PUCCH cannot be sent at the same time for the same UE

Method used

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  • Measuring and reporting method of power climbing space and terminal
  • Measuring and reporting method of power climbing space and terminal
  • Measuring and reporting method of power climbing space and terminal

Examples

Experimental program
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Effect test

Embodiment 1

[0361] It is assumed that an LTE-A system works in a frequency division duplex (Frequency Division Duplex, FDD) mode, and there are two downlink component carriers D1 and D2 and two uplink component carriers U1 and U2 in the system.

[0362] A user terminal supports sending uplink signals on U1 and U2.

[0363] The UE measures power headroom on the component carriers U1 and U2 respectively.

[0364] Assuming that the user terminal only transmits PUSCH on subframe i and component carrier U1, the user terminal measures the power headroom PH on subframe i and component carrier U1 PUSCH (i, 1).

[0365] Assume that the transmit power of the PUSCH on component carrier U1 estimated by the user terminal in subframe i is P PUSCH '(i, 1), and the maximum configured output power set by the user terminal on subframe i and component carrier U1 is P CMAX (1), then the power headroom measured by the user terminal on subframe i and component carrier U1 is:

[0366] pH PUSCH (i,1)=P CMA...

Embodiment 2

[0388]Suppose an LTE-A system works in frequency division duplex mode, and there are two downlink component carriers D1 and D2 and two uplink component carriers U1 and U2 in the system.

[0389] A user terminal supports sending uplink signals on U1 and U2.

[0390] The UE measures power headroom on the component carriers U1 and U2 respectively.

[0391] Assuming that the user terminal simultaneously transmits the PUSCH and the PUCCH on the component carrier U2 in the subframe i, the user terminal measures the power headroom on the component carrier U2 in the subframe i.

[0392] Assume that the transmit power of the PUSCH on component carrier U2 estimated by the user terminal in subframe i is P PUSCH '(i, 2), the estimated transmit power of PUCCH is P PUCCH ′(i, 2), and the maximum configured output power set by the user terminal on subframe i and component carrier U2 is P CMAX (2), then the power headroom measured by the user terminal on subframe i and component carrier U2...

Embodiment 3

[0406] Suppose an LTE-A system works in frequency division duplex mode, and there are two downlink component carriers D1 and D2 and two uplink component carriers U1 and U2 in the system.

[0407] A user terminal supports sending uplink signals on U1 and U2.

[0408] The UE measures power headroom on the component carriers U1 and U2 respectively.

[0409] Assuming that the user terminal simultaneously transmits the PUSCH and the PUCCH on the component carrier U2 in the subframe i, the user terminal measures the power headroom on the component carrier U2 in the subframe i.

[0410] Assume that the transmit power of the PUSCH on component carrier U2 estimated by the user terminal in subframe i is P PUSCH '(i, 2), the estimated transmit power of PUCCH is P PUCCH ’(i, 2), and the maximum configured output power set by the user on subframe i and component carrier U2 is P CMAX (2), then the power headroom measured by the user terminal on subframe i and component carrier U2 is PH ...

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Abstract

The invention discloses a measuring and reporting method of a power climbing space and a terminal, wherein the measuring and reporting method of the power climbing space comprises the following steps: when the terminal sends a physical uplink shared channel PUSCH and / or a physical uplink control channel PUCCH on a subframe i and a component carrier group j, the terminal measures power climbing spaces of the subframe i and the component carrier group j; and the terminal reports the power climbing spaces to a base station and indicates the types of the reported power climbing spaces during reporting. The invention definitely indicates the types of the power climbing spaces by reporting the types of the power climbing spaces when reporting the power climbing spaces, thereby preventing from confusion.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method for measuring and reporting power headroom and a terminal. Background technique [0002] In the 3GPP LTE (The 3rd Generation Partnership Project Long Term Evolution, 3rd Generation Partnership Project Long Term Evolution) system, uplink power control (uplink power control, referred to as uplink power control or power control) is used to control the uplink physical channel (uplink physical channel) to compensate for channel path loss and shadow fading, and suppress inter-cell interference. Wherein, the uplink physical channels controlled by the uplink power control include a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), a physical uplink control channel (Physical Uplink Control Channel, PUCCH) and a measurement reference signal (Sounding Reference Signal, SRS). LTE uplink power control adopts a control method combining open loop and closed loo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/08H04W24/10H04W52/00
CPCH04W52/146H04W52/367H04W52/365H04W52/34H04L5/001H04W52/281H04W52/325H04W24/10
Inventor 朱鹏郝鹏喻斌
Owner ZTE CORP
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