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Method for MTC UE to have access to LTE system and evolution base station

A base station and random access preamble technology, applied in access restriction, wireless communication, network traffic/resource management, etc., can solve the problem of not receiving all control information, RAR and contention resolution messages cannot be received, and affect the success of random access rate and other issues

Active Publication Date: 2014-02-12
苏州医疗器械产业发展集团有限公司
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Problems solved by technology

[0017] In view of this, the main purpose of the present invention is to provide a method for MTC UE to access the LTE system and an evolved base station to solve the problem that the MTC UE cannot receive the large bandwidth transmission of the system during the existing MTC UE random access to the LTE system. All control information of the PDCCH, the RAR and contention resolution messages during the random access process cannot be received, which seriously affects the success rate of random access

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  • Method for MTC UE to have access to LTE system and evolution base station
  • Method for MTC UE to have access to LTE system and evolution base station

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Embodiment Construction

[0081] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0082] A method for an MTC UE to access an LTE system provided by an embodiment of the present invention, such as figure 2 as shown,

[0083] It mainly includes the following steps:

[0084] In step 201, the eNodeB sends PRACH configuration information to the MTC UE.

[0085]The eNodeB on the network side configures the PRACH resource parameters (PRACH-Configuration) through the system information, and the PRACH configuration information passes the physical downlink shared channel (PDSCH, Physical Downlink) indicated by the PDCCH (DL-3) and / or ePDCCH (DL-2 / 3) Shared Channel) to the MTC UE. Among them, DL-2 means that both the downlink control receiving bandwidth and the downlink data receiving bandwidth of the MTC UE use a small bandwidth, and DL-3 means that the downlink data receiving bandwidth of the MTC UE us...

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Abstract

Disclosed are a method for a machine-type communication user equipment (MTC UE) to access a long term evolution (LTE) system, an evolved base station and a terminal. By configuring configuration information about a physical random access channel (PRACH) for the MTC UE, the evolved base station recognizes the MTC UE by means of the position of a preamble sequence of random access by the PRACH, and uses a specific transmission mode to send to the MTC UE a random access response (RAR) and a contention resolution message, enhancement processing being performed on the sending of the RAR and the contention resolution message. The present invention solves the problem that in the process of MTC UE randomly accessing an LTE system, the MTC UE cannot receive all control information about a physical downlink control channel (PDCCH) sent by the system in a large-bandwidth manner, an RAR and a contention resolution message cannot be received in the random access process and the success rate of random access is seriously affected; and on the basis of not affecting the performance of an LTE system, the present invention greatly reduces the cost of an LTE-based MTC UE, and promotes the evolution of an MTC service from a GSM system to an LTE system.

Description

technical field [0001] The present invention relates to a machine-type communication (MTC, Machine-Type Communication) technology in the wireless communication field, and in particular to a method for an MTC user equipment (UE) to access a long-term evolution (LTE, Long Term Evolution) system and an evolved base station. Background technique [0002] Machine Type Communication User Equipment (MTC UE, MTC User Equipment), also known as Machine to Machine (M2M, Machine to Machine) equipment, is the main application form of the Internet of Things at this stage. The large-scale application of MTC UE will inevitably require its low power consumption and low cost. MTC UEs currently deployed in the market are mainly based on the Global System of Mobile communication (GSM, Global System of Mobile communication) system. In recent years, due to the high spectral efficiency of LTE, more and more mobile operators choose LTE as the evolution direction of future broadband wireless commun...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/16H04W74/08
CPCH04W28/18H04W74/0833H04W74/0838
Inventor 石靖戴博夏树强李新彩方惠英
Owner 苏州医疗器械产业发展集团有限公司
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