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Migration processing, migration method and device for dual connectivity radio bearers

A technology of wireless bearer and processing method, applied in the field of communication, can solve problems such as key leakage security, and achieve the effect of improving security

Active Publication Date: 2019-07-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the security issues caused by key leaks in the process of dual-connection radio bearer migration between base stations in the related art, the present invention provides a dual-connection radio bearer migration processing, migration method and device to at least solve the above-mentioned technical problem

Method used

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  • Migration processing, migration method and device for dual connectivity radio bearers
  • Migration processing, migration method and device for dual connectivity radio bearers
  • Migration processing, migration method and device for dual connectivity radio bearers

Examples

Experimental program
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Effect test

Embodiment 1

[0069] Such as Figure 12 As shown, the UE maintains dual connectivity with the master base station (ie MeNB) and the secondary base station (ie SeNB,), where the MeNB wishes to migrate the A bearer (its data radio identifier is 1) on the base station to the SeNB.

[0070] In step S1202, the MeNB initiates a modification request to the SeNB, which carries the configuration information of the A bearer that needs to be migrated, including the new data radio bearer identifier assigned to it, assuming that the new data radio bearer identifier is 2. The MeNB needs to ensure that the data radio bearer identity 2 has not been used.

[0071] In step S1204, the SeNB generates a modification request response message according to the instruction of the MeNB.

[0072] In step S1206, the MeNB sends a reconfiguration command to the UE according to the modification request response message, which instructs the UE to migrate the A bearer to the SeNB and allocates a new data radio bearer iden...

Embodiment 2

[0077] Such as Figure 13 As shown, the UE maintains dual connectivity with the primary base station (ie MeNB) and the secondary base station (ie SeNB), where the B bearer on the SeNB is previously migrated from the MeNB, and the keys on the MeNB and the SeNB are KeNB1 and S-KeNB1 respectively. During the transmission process carried by B on the SeNB, its PDCP COUNT count value is reversed, and at the same time, the key on the SeNB is changed to become S-KeNB2. However, due to other reasons (for example, the load on the SeNB is too high), the SeNB wishes to re-migrate the B bearer (its data radio identifier is 1) on the base station to the MeNB.

[0078] In step S1302, the SeNB sends a modification request message to the MeNB, which carries the B bearer configuration information that needs to be relocated.

[0079] Step S1304, the MeNB generates a reconfiguration command to the UE according to the bearer relocation request message, which carries the new configuration informat...

Embodiment 3

[0085] Such as Figure 14 As shown, the UE maintains dual connectivity with the master base station (ie MeNB) and the secondary base station (ie SeNB,), where the SeNB wishes to exit the upper connection (ie be deleted) due to load or other reasons, and wirelessly transmit all data on the SeNB base station The bearer (whose data radio identifier is 1) is migrated to the MeNB.

[0086] In step S1402, the SeNB sends a release request message to the MeNB, which carries configuration information of all data radio bearers that need to be relocated.

[0087] Step S1404, the MeNB generates a reconfiguration command to the UE, which carries new configuration information of all or part of the data radio bearers on the SeNB on the MeNB, including the data radio bearer identifier re-allocated by the MeNB for all or part of the data radio bearers on the SeNB . The MeNB needs to ensure that the newly allocated data radio bearer identity is different from the data radio bearer identity us...

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Abstract

The present invention provides a migration processing, migration method and device for a dual-connection wireless bearer. The migration processing method includes: the main base station allocates a new data wireless bearer identification to the data wireless bearer to be migrated, wherein the new The data radio bearer identity is different from the data radio bearer identity that has been used by the master base station and the slave base station; the master base station sends a message to the user equipment to notify the user equipment to perform data radio bearer migration, wherein the message carries There is the new radio bearer identity. The above technical solution provided by the present invention solves the security problems caused by key leakage during the migration process of dual-connection wireless bearers between base stations in related technologies, and improves the security of dual-connection bearers of terminals.

Description

technical field [0001] The present invention relates to the communication field, in particular to a dual connectivity radio bearer migration process, migration method and device. Background technique [0002] With the continuous evolution of wireless communication technologies and standards, mobile packet services have been greatly developed, and the data throughput capability of a single terminal is constantly improving. Taking the Long Term Evolution (LTE) system as an example, it can support data transmission at a maximum downlink rate of 100 Mbps within a 20M bandwidth. In the subsequent enhanced LTE (LTE Advanced) network, the data transmission rate will be further improved, and even up to 1Gbps. [0003] The existing LTE user plane data protocol stack such as figure 1 As shown, the downlink data received from the core network via the General Packet Radio Service (GPRS) Tunneling Protocol (GPRS Tunneling Protocol for the User Plane, GTP-U) is unpacked and passed throu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/08H04W36/28
CPCH04W36/08H04W36/0069
Inventor 和峰杜忠达
Owner ZTE CORP
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