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Switching control method and device and base station

A control method and base station technology, applied in the field of communications, can solve problems such as inability to support 5G systems

Active Publication Date: 2020-05-01
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a handover control method, device and base station to solve the problem that the existing handover mechanism and process between base stations cannot support the 5G system

Method used

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  • Switching control method and device and base station
  • Switching control method and device and base station
  • Switching control method and device and base station

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Embodiment Construction

[0116] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0117] Such as figure 1 As shown, the embodiment of the present invention provides a handover control method applied to the source base station, including:

[0118] Step 11: Send a handover request message to the target base station, where the handover request message carries a first mapping relationship between the QoS flow of the source base station and the wireless data bearer.

[0119] Preferably, step 11 is only performed when the source base station determines to handover the terminal to the target base station.

[0120] Step 12: Receive a handover request confirmation message sent by the target base station, or receive a handover rejection message sent by the target base station; the handover request confirmation message carries the first mapping...

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Abstract

The invention provides a switching control method and device and a base station, and the method comprises the steps: transmitting a switching request message to a target base station, receiving a switching request confirmation message transmitted by the target base station, or receiving a switching rejection message transmitted by the target base station; after a switching request confirmation message sent by the target base station is received, sending a switching command for indicating the terminal to be switched to the target base station to the terminal, sending an SN state report to the target base station according to the first mapping relation and the second mapping relation, wherein the SN state report carries the SN of the next protocol data unit PDU to be transmitted. According to the embodiments of the present invention, the second mapping relationship is obtained through the switching request acknowledgement message, and the SN state report is sent to the target base station according to the first mapping relationship and the second mapping relationship, so that the target base station uses the same SN to ensure the continuity of data transmission, and lossless switching between base stations is realized.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a handover control method, device and base station. Background technique [0002] The concept of end-to-end bearer is used in LTE (Long Term Evolution), in which EPS (Evolved Packet System, Evolved Packet System) bearer and E-RAB (Evolved Radio Access Bearer, evolved radio access bearer) are in a one-to-one correspondence. The QoS (Quality of Service, Quality of Service) management mechanism in LTE takes the bearer as the minimum granularity. [0003] In order to achieve more fine-grained QoS management in 5G, a management mechanism based on QoS flows is introduced. 3GPP has completed the 5G system architecture and process protocols TS 23.501 and 23.502. However, the RAN (Radio Access Network, radio access network) side still retains the concept of DRB (Data Resource Bearer, data bearer); the terminal can simultaneously establish one or more PDU (Protocol Data Uni...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W36/08H04W36/30H04W28/02H04W28/24
CPCH04W36/0033H04W36/0083H04W36/08H04W36/30H04W28/0268H04W28/24
Inventor 刘亮刘洋胡南刘光毅
Owner CHINA MOBILE COMM LTD RES INST
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