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Method and device in a mobile telecommunication network

A technology for user equipment and control channels, used in wireless communication, electrical components, power management, etc.

Active Publication Date: 2015-11-25
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Power-limited situations (i.e. when the UE has reached the maximum transmit power) become more likely as the probability that the UE transmits PUSCH and PUCCH at the same time increases

Method used

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  • Method and device in a mobile telecommunication network
  • Method and device in a mobile telecommunication network
  • Method and device in a mobile telecommunication network

Examples

Experimental program
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Embodiment Construction

[0042] Although embodiments of the invention will be described in the context of an LTE network, embodiments can also be implemented in other networks capable of simultaneous transmission of different physical channels.

[0043] According to the embodiment, such as Image 6 As shown in the flow chart of , the base station configures 601 whether UE may transmit PUCCH and PUSCH at the same time. The base station then signals 602 a parameter to the UE indicating whether simultaneous transmission of PUSCH and PUCCH is possible. The parameters may be signaled via the RRC (Radio Resource Control) protocol or as part of broadcast system information. Therefore, if Figure 7 As shown in the flow chart of FIG. 2 , according to an embodiment, the UE receives 701 parameters indicating whether simultaneous transmission of PUSCH and PUCCH is possible, and configures 702 uplink transmission based on the received parameters.

[0044] Since UEs have limited available transmit power, it woul...

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Abstract

The embodiments of the present invention relates to a method in a UE for distributing available transmit power to avoid violation of UE power limitations on the PUCCH and the PUSCH. Available power for transmission on at least the PUCCH is determined and at least one power headroom report indicating the available power for transmission on at least the PUCCH is transmitted to a base station.

Description

technical field [0001] The present invention relates to methods and arrangements in a mobile telecommunications network, and in particular to reporting transmit power headroom in conjunction with simultaneous transmission of a Physical Uplink Shared Channel and a Physical Uplink Control Channel. Background technique [0002] 3GPP Long Term Evolution (LTE) is a project within the 3rd Generation Partnership Project (3GPP) to improve the UMTS standard, with increased capacity and higher data rates eg towards fourth generation mobile telecommunication networks. Thus, the LTE specification provides downlink peak rates of up to 300Mbps, uplink uplinks of up to 75Mbit / s and radio access network round-trip times of less than 10ms. In addition, LTE supports scalable carrier bandwidth from 20MHz down to 1.4MHz, and supports FDD (Frequency Division Duplex) and TDD (Time Division Duplex). [0003] LTE uses OFDM (Orthogonal Frequency Division Multiplexing) in the downlink and DFT (Discr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/36H04W72/12H04W52/34
CPCH04W52/367H04W52/34H04W52/346H04W52/365H04W72/1268H04W72/21
Inventor D·拉森R·巴尔德迈尔D·格斯滕贝格尔L·林德博姆
Owner TELEFON AB LM ERICSSON (PUBL)