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Method and system for terminal access network supporting multi-antenna working mode

A working mode, terminal access technology, applied in diversity/multi-antenna systems, network data management, connection management, etc., to ensure reliability and effectiveness, and maintain service quality.

Active Publication Date: 2015-11-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the main purpose of the present invention is to provide a method for multi-antenna user equipment to access the network, which is used to solve the problem of LTE-A terminals accessing the LTE network or in the LTE-A network when the channel condition is not good. Technical issues for terminals using multi-antenna working mode with single antenna or smaller configuration to access the network

Method used

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  • Method and system for terminal access network supporting multi-antenna working mode
  • Method and system for terminal access network supporting multi-antenna working mode

Examples

Experimental program
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Embodiment 1

[0026] figure 1 A procedure for accessing a network in a single-antenna working mode for a user equipment supporting a multi-antenna working mode in the present invention;

[0027] Step 101: A user equipment with a multi-antenna working mode initiates a random access process, and initially accesses the network in a single-antenna mode.

[0028] Step 102: After successfully accessing the network, the user equipment reports its supported multi-antenna working mode to the network, and the user equipment can report its supported multi-antenna working mode to the network through high-level signaling or physical layer signaling;

[0029] For example, the user equipment may report its supported multi-antenna working mode to the network through an information element (InformationElement, IE) in radio resource control (RadioResourceControl, RRC) signaling.

[0030] Step 103: The base station receives the multi-antenna working mode notified by the user equipment, and through mode negot...

Embodiment 2

[0034] figure 2 The present invention supports the multi-antenna working mode user equipment's multi-antenna initial network access process. In this embodiment, the user equipment adopts the simple multi-antenna working mode agreed with the network to access the network during the initial access, making full use of the diversity Gain, improving the reliability of edge user access.

[0035] Step 201: The user equipment accesses the network in an initially agreed multi-antenna working mode, such as 2-antenna transmission (2TX) and 2-antenna reception (2RX).

[0036] The initially agreed multi-antenna working mode should be a simple multi-antenna working mode supported by both the network and the user equipment. With such an initial access mode, the user equipment can obtain multi-antenna diversity gain during initial access.

[0037] Step 202: After the user equipment accesses the network, it reports its supported multi-antenna working mode to the network;

[0038] The user e...

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Abstract

A method and system for enabling a terminal supporting multi-antenna working modes to access a network are disclosed in the present invention, which are used for solving the problem of selection of multi-antenna working modes after a Long Term Evolution Advance (LTE-A) terminal accesses a Long Term Evolution (LTE) network or an LTE-A network using a single-antenna working mode or a multi-antenna working mode with smaller configuration because of the bad channel condition. A User Equipment (UE) with multi-antenna working modes adopts a rollback working mode to initiate a random access process; after successfully accessing the network, the UE reports the multi-antenna working modes supported by it to the network; after receiving the multi-antenna working modes reported by the UE, the network negotiates with the UE and determines a multi-antenna working mode supported by both of them. In the present invention, before synchronization access, the UE negotiates with a target base station and determines the multi-antenna working mode supported by both of them, so that reliability and effectiveness of cell handover in a multi-antenna system can be ensured, and the acceptable service quality of a certain degree can be maintained.

Description

technical field [0001] The present invention relates to a mobile communication system, in particular to a method for accessing a network by a terminal supporting a multi-antenna working mode, applicable to 3GPP Long Term Evolution (LTE) system, LTE-Advance (LTE-A) system, worldwide A mobile communication system that supports multiple antennas, such as Worldwide Interoperability for Microwave Access (WiMAX). Background technique [0002] In recent years, various theoretical studies have shown that the space-time signal processing technology of multiple-input multiple-output systems using multiple antennas at the transmitter and receiver can meet the requirements of high data rates and high spectral performance for various multimedia services in future wireless mobile communications. requirements. Multi-antenna technology has become one of the key technologies of future mobile communication standards, such as LTE (long-term evolution plan of the third generation mobile commun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04W76/02H04B7/04
CPCH04W8/24
Inventor 支周禹忠丁添添
Owner ZTE CORP
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