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Methods and apparatuses for performing preamble assignment for random access in a telecommunications system

A random access and telecommunication system technology, applied in electrical components, wireless communication, etc., can solve problems such as long delays, and achieve the effect of reducing random access delays and minimizing the risk of conflicts

Active Publication Date: 2011-07-27
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the greater the number of re-access attempts, the longer the delay

Method used

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  • Methods and apparatuses for performing preamble assignment for random access in a telecommunications system
  • Methods and apparatuses for performing preamble assignment for random access in a telecommunications system
  • Methods and apparatuses for performing preamble assignment for random access in a telecommunications system

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Embodiment Construction

[0031] In the following description, for purposes of illustration and not limitation, specific details such as particular architectures, situations, techniques, etc. are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention and its embodiments may be practiced in other embodiments that deviate from these specific details.

[0032] Various embodiments of the invention are described herein with reference to specific example situations. In particular, the invention is described in a non-limiting general context related to random access procedures in telecommunication network systems based on third generation (3G) long term evolution (LTE) concepts. It should be noted that the present invention is not limited to 3G LTE, but is applicable to other wireless systems using random access procedures, such as WiMAX (World Interoperability for Microwave Access) or HSPA (High Speed ​​Packe...

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Abstract

The present invention relates to methods and apparatuses (radio base station (120, 600) and UE (110, 700)) for enabling a UE to perform a random access. According to embodiments of the present invention, an identification number of a dedicated random access preamble is, in a message, transmitted together with information indicating in which channel or channels the preamble is valid for the UE. The UE (110, 700) can then use the received information and based on that information perform a random access.

Description

technical field [0001] The present invention relates generally to the field of wireless telecommunications, and more particularly to a method and apparatus for assigning a preamble to a user equipment to enable the user equipment to perform random access in a telecommunications system. Background technique [0002] The 3rd Generation Partnership Project (3GPP) is in charge of standardization of the UMTS (Universal Mobile Telecommunications Service) system, and LTE (Long Term Evolution) is currently under discussion as a next generation mobile communication system of the UMTS system. LTE is a technology for high-speed, packet-based communications capable of data rates in excess of 100 Mbps on the downlink and in excess of 50 Mbps on the uplink. The 3GPP work on LTE is also known as the Evolved Universal Terrestrial Access Network (E-UTRAN). [0003] Generally, one or more cells are allocated to a radio base station called eNB (Enhanced / Evolved NodeB) or eNodeB in the 3GPP LT...

Claims

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Application Information

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IPC IPC(8): H04W74/08
CPCH04W74/0833H04W74/006
Inventor M·迈尔M·林兹特伦
Owner TELEFON AB LM ERICSSON (PUBL)
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