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Methods and arrangements in a wireless communication system

A signal and feedback signal technology, which is applied in the field of wireless communication systems and devices, can solve the problems of increasing user equipment uplink power consumption, large changes in thermal noise increase, etc., and achieve stability, performance improvement, and user experience improvement. Effect

Inactive Publication Date: 2014-01-22
ERICSSON (CHINA) COMMUNICATION COMPANY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0052] The high error probability of antenna selection by OLAS or precoding vector selection by OLBF degrades the perceived uplink quality of the user equipment, which in turn increases the uplink power consumption of the user equipment
Furthermore, this also causes large variations in the uplink load / interference / rise-over-thermal (RoT) in the system and even an overall increase in uplink load / interference / RoT

Method used

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  • Methods and arrangements in a wireless communication system
  • Methods and arrangements in a wireless communication system
  • Methods and arrangements in a wireless communication system

Examples

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Embodiment Construction

[0072] Embodiments herein are defined as methods and devices in user equipment and methods and devices in network nodes that can be implemented in the embodiments described below. These embodiments may, however, be illustrated and carried out in many different forms, and are not to be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0073] Still other objects and features will become apparent from the following detailed description in conjunction with the accompanying drawings. It is to be understood, however, that the drawings are designed for purposes of illustration only and not for a limiting definition of the embodiments disclosed herein, which definition shall be made with reference to the appended claims. It is also to be understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are only intended to conceptually illust...

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Abstract

Method and arrangement (600) in a user equipment (110) for adjusting signals transmitted in uplink to a network node (120), based on a feedback value received from the network node (120). The method comprises transmitting (501) a signal, to be received by the network node (120). Further, the method comprises receiving (502) a feedback signal from the network node (120), providing feedback on the transmitted (501) signal. In addition, the method comprises obtaining (503) a value of a time delay of the received (502) feedback signal. Furthermore, the method comprises adjusting (504) signals transmitted in the uplink according to the received (502) feedback signal, wherein compensation is made for the obtained (503) time delay value of the received (502) feedback signal. Further, a method and arrangement (800) in a network node (120) is presented.

Description

technical field [0001] The present disclosure relates to methods and arrangements in user equipment and methods and arrangements in network nodes. In particular, it involves adjusting the signal transmitted to the network node in the uplink based on feedback values ​​received from the network node. Background technique [0002] User Equipment (UE), also known as mobile stations, wireless terminals and / or mobile terminals, are enabled to communicate wirelessly in a wireless communication system, sometimes also called a cellular radio system. Communication may eg take place between two user equipment units, between a user equipment and an ordinary telephone and / or between a user equipment and a server via a radio access network (RAN) and possibly one or more core networks. [0003] A user equipment unit may also be referred to as a mobile phone, cellular phone, laptop computer with wireless capabilities. A user equipment unit in this context may be, for example, a portable, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W88/00
CPCH04B7/0619H04B7/0617H04B7/0671H04B7/0673H04W28/18H04W52/04H04W52/06H04W52/08H04W52/10H04W52/221H04W56/0065H04W88/02
Inventor 刘进华M.卡滋米Q.繆
Owner ERICSSON (CHINA) COMMUNICATION COMPANY LTD
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