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User equipment and power control method for random access

A random access and power control technology, applied in power management, advanced technology, electrical components, etc., can solve problems such as signal quality degradation, and achieve the effect of reducing energy consumption and interference

Active Publication Date: 2016-11-02
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] Typically, the received signal quality degrades as the signal propagation path lengthens

Method used

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  • User equipment and power control method for random access
  • User equipment and power control method for random access
  • User equipment and power control method for random access

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Embodiment Construction

[0059] Various embodiments of the present invention are described in detail below with reference to the accompanying drawings. Detailed descriptions of well-known functions and structures incorporated herein may be omitted to avoid obscuring the subject matter of the present invention. In addition, the following terms are defined in consideration of functions in the present invention, and may vary according to user's or operator's intention, usage, and the like. Therefore, the definition should be made based on the entire content of this specification.

[0060] Although embodiments of the present invention will be described herein with reference to LTE-A (or Evolved Universal Terrestrial Radio Access (EUTRA)) by way of example, those skilled in the art will understand that embodiments of the present invention may be applied, with slight modification, in Other communication systems with similar technical background and channel format without departing from the spirit and scope...

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Abstract

An improved power control method and device for a mobile terminal are provided to facilitate a random access procedure in a mobile communication system based on a distributed antenna system. The method includes: receiving, by a terminal, system information from a base station, the system information including transmission power information for transmitting a random access preamble; calculating transmission power using the transmission power information; and transmitting the random access preamble using the calculated transmission power .

Description

technical field [0001] The present invention generally relates to a mobile terminal and a power control method for random access of the mobile terminal, in particular, to a power control method and device for a mobile terminal that facilitates a random access procedure in a distributed antenna mobile communication system. Background technique [0002] figure 1 A conventional cellular mobile communication system is shown comprising three cells, each of which is centered on a transmit / receive antenna, ie the transmit / receive antenna is located at the center of each cell. The cells are often referred to as Central Antenna System (CAS). Even when a plurality of antennas are provided, all of these antennas are arranged at the center of the cell to define a service area. [0003] refer to figure 1 , each of cells 100, 110, and 120 is centered on an antenna (or centrally located antenna) 130 associated with an evolved Node B (eNB). The eNB serves a first user equipment (UE) 130...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/24H04W52/40H04W74/08
CPCH04W52/26H04W52/40H04W74/0833Y02D30/70
Inventor 金泳范韩臸奎金润善李周镐赵俊暎
Owner SAMSUNG ELECTRONICS CO LTD
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