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Coordinated multiple-point transmission control method and device for use in cell handover process

A technology of multi-point transmission and cell handover, which is used in electrical components, wireless communication, network data management, etc.

Active Publication Date: 2015-01-21
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a method and device for controlling CoMP transmission in the process of cell handover, so as to solve the problem of how to deal with the CoMP UE's CoMP transmission when the CoMP UE performing CoMP UE performs cell handover

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  • Coordinated multiple-point transmission control method and device for use in cell handover process
  • Coordinated multiple-point transmission control method and device for use in cell handover process
  • Coordinated multiple-point transmission control method and device for use in cell handover process

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Embodiment Construction

[0116] The core idea of ​​the embodiment of the present invention is: in the cell handover process, if the target base station is determined to support coordinated multipoint transmission to the terminal, the coordinated multipoint transmission of the terminal is maintained, and if it is determined that the target base station does not support coordinated multipoint transmission to the terminal Transmit, deactivate the coordinated multipoint transmission of the terminal, and instruct other access network nodes in the coordinated set to deactivate the coordinated multipoint transmission for the terminal, without ensuring the continuity of the coordinated multipoint transmission of the terminal.

[0117] The embodiments of the present invention are not only applicable to LTE and LTE-A networks, but also applicable to other communication networks where CoMP transmission exists.

[0118] Before describing the embodiments of the present invention in detail with reference to the accompany...

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Abstract

Disclosed are a method and device for controlling coordinated multipoint transmission in a cell handover process. The method comprises: when a cell handover for a terminal is determined by a serving base station, same determines whether or not a target base station supports coordinated multipoint transmission to the terminal; if yes, transmitted to other access network nodes in a coordinated set is a handover notification message, which carries identification information of the terminal, identification information of the target base station, and instruction information for maintaining the coordinated multipoint transmission, and if not, the coordinated multipoint transmission of the terminal is deactivated, and a message for instructing deactivation of the coordinated multipoint transmission is transmitted to the other access network nodes. If the handover notification message is received by the other access network nodes, continuation of the coordinated multipoint transmission when the terminal is handed over to the target base station is determined; if the message for deactivation of the coordination multipoint transmission is received, the coordinated multipoint transmission of the terminal is deactivated. Embodiments of the present application solve the problem found during a cell handover of a terminal that is executing coordinated multipoint transmission of how to handle the coordinated multipoint transmission of the terminal.

Description

Technical field [0001] The present invention relates to the field of wireless communication technology, and in particular to a coordinated multipoint transmission control method and device in a cell handover process. Background technique [0002] In the Long Term Evolution (LTE) system, the process of UE cell handover is as follows: [0003] The source evolved base station (eNB) makes a decision to perform X2 handover for the UE according to the measurement result reported by the user equipment (UE). [0004] The source eNB sends a handover request message to the target eNB. [0005] After receiving the handover request message, the target eNB configures a new bearer for the UE. If the configuration is successful, the target eNB returns a handover response message to the source eNB. [0006] After receiving the handover response message, the source eNB sends a radio resource control (RadioResourceControl, RRC) reconfiguration message to the UE, and stops receiving and sending the data ...

Claims

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Application Information

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IPC IPC(8): H04W8/24H04W36/00H04W72/12
CPCH04W36/08H04W36/0061H04W36/00692
Inventor 付喆
Owner DATANG MOBILE COMM EQUIP CO LTD
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