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Configuration method and device for radio bearer

A wireless bearer and configuration method technology, applied in wireless communication, electrical components, connection management, etc., can solve problems such as decreased business fluency, large system processing complexity, and reduced data service experience, and achieves a solution that reduces complexity and burden. Effect

Active Publication Date: 2017-05-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the R13 version, due to the high complexity of system processing, the joint coexistence configuration of UE's LTE DC dual connectivity operation and LWA operation cannot be supported
This will cause that when the UE is in the DC working mode at a certain time, if it enters the effective WLAN coverage area, and the LTE network side wants to perform LWA operations, it must first pass multiple RRC control signaling to let the UE exit the DC configuration first, and then pass Multiple RRC control signaling, allowing UE to re-enter LWA configuration, and vice versa
Along with the above-mentioned switching between DC and LWA working modes, not only a large amount of air interface signaling resources are consumed for reconfiguration, but also the UE’s user plane DRBs data transmission will be interrupted for a period of time, which will reduce the user’s data service experience (such as peak data rate), and cause performance degradation such as business fluency

Method used

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  • Configuration method and device for radio bearer
  • Configuration method and device for radio bearer
  • Configuration method and device for radio bearer

Examples

Experimental program
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Effect test

Embodiment 1

[0085] Image 6 This is an architecture diagram of the LTE DC mode and LTE LWA mode joint coexistence configuration network node structure provided by the first embodiment of the present invention. Such as Image 6 As shown, the WT is directly connected to the MeNB through the external Xw interface (or the WT is built into the MeNB). For example, the UE will be configured with the following three radio links at the same time: MCG Link (Uu-U (MeNB)), SCG Link (Uu- U(SeNB)), WLANLink. It is assumed here that there is still only one set of WLAN-related modules inside the UE, so only one WLAN Link can be supported; if there are multiple sets of WLAN-related modules inside the UE, the UE may support multiple WLAN Links, and the UE can be configured with more than three at the same time. Wireless link.

[0086] In this embodiment, it is assumed that the initial state of the UE is neither in DC mode nor in LWA mode. When the core network MME initiates the establishment of the first DRB...

Embodiment 2

[0106] Picture 8 It is a schematic diagram of deployment of Embodiment 2 of the present invention. reference Picture 8 The description of this embodiment is as follows:

[0107] Such as Picture 8 As shown, the primary (macro) base station MeNB and the secondary (micro) base station SeNB are connected through the X2 interface, and the MeNB / SeNB is connected to each independent WT / AP node through the Xw interface. Both MeNB / SeNB and WT / AP support related DC mode and LWA mode operation;

[0108] The UE is already in the RRC connected state at a certain moment, and is under good signal coverage of the potential target MCG serving cell (a group of cells under the MeNB), the SCG serving cell (a group of cells under the SeNB), and the MCG side WT / AP. The signal coverage of the WT / AP on the side is poor; the UE supports related DC mode and LWA mode operations;

[0109] The MeNB generates a restriction rule table for coexistence of DRB types, such as the example described in the first em...

Embodiment 3

[0116] Picture 9 It is a schematic diagram of deployment of Embodiment 3 of the present invention. reference Picture 9 The description of this embodiment is as follows:

[0117] Such as Picture 9 As shown, the primary (macro) base station MeNB and the secondary (micro) base station SeNB are connected through the X2 interface, and the MeNB / SeNB is connected to each independent WT / AP node through the Xw interface. Both MeNB / SeNB and WT / AP support related DC working mode and LWA working mode;

[0118] The UE is already in the RRC connected state at a certain moment and is under good signal coverage of the potential target MCG serving cell (a group of cells under the MeNB), the SCG serving cell (a group of cells under the SeNB), and the SCG side WT / AP. The signal coverage of the WT / AP on the side is poor; the UE supports related DC mode and LWA mode operations;

[0119] The MeNB generates in advance a restriction rule table for the DRB type coexistence configuration, for example,...

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Abstract

The invention discloses a configuration method and device for a radio bearer, and the method comprises the steps that a network side configures a constraint rule for the type of a DRB; and the network side determines the type of the DRB which needs to be configured by UE according to the constraint rule and a preset strategy. The method and device provided by the invention can reduce the processing complexity and burden of a data package of a wireless link, thereby reducing the processing complexity and burden of a system.

Description

Technical field [0001] The present invention relates to the field of mobile communication, in particular to a method and device for configuring a radio bearer. Background technique [0002] The Long Term Evolution (LTE) / Long Term Evolution (LTE-A, LTE-Advanced) system of the 3rd Generation Partnership Project (3GPP) standard specification was introduced in the R12 (Release 12) version The very important dual connectivity (DC, Dual Connectivity) function enables a single terminal (UE, User Equipment) to simultaneously interact with two LTE serving base stations (MeNB, Master evolved Node B) and secondary base station (SeNB, Secondary evolved Node). B)) Perform wireless connection and transmit and receive service data of uplink and downlink users. Such as figure 1 As shown, the UE in the LTE DC working mode can simultaneously carry with the MeNB and SeNB through the Uu-U air interface user plane (Data Radio Bearer (DRB, Data Radio Bearer), each DRB corresponds to and carries a use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/02
CPCH04W76/15H04W76/19H04W76/10
Inventor 杨立
Owner ZTE CORP
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