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Wireless links management method, device and system

A wireless link and link technology, applied in the field of mobile communication, can solve the problems of reducing user communication experience, reducing user experience, large data transmission interruption and delay, etc.

Active Publication Date: 2018-06-26
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 1: During the mobile change (handover) process of the wireless link (MCG RL) on the side of the main control anchor base station, all wireless links (SCG RLs) on the secondary base station side will be passively affected, not only on the MCG Bearers The uplink and downlink data transmission that is being carried is interrupted (the data transmission can only be resumed after the MCG RL is successfully switched), even if all SCG RLs do not change (handover), the uplink and downlink data transmission carried by all SCG Bearers must be forced to be interrupted ( After the MCG RL is successfully handed over, the SCG Bearers configuration must be reset accordingly to resume data transmission), during this handover process, the uplink and downlink data transmission between the UE and the network side is completely interrupted, and it takes a period of time to rebuild and recover, which greatly reduces the User Communication Experience
[0010] 2: When the wireless link (MCG RL) on the side of the main control anchor base station fails to move and switch, all the resources and configurations related to the SCG RLs on the side of the offloading secondary base station will also be automatically released, and then wait for the main control The anchor base station tries to reestablish the RRC connection and restore the multi-connection transmission mode. The above process not only consumes a certain amount of air interface and ground interface signaling resources, but also brings greater data transmission interruption delay, which greatly reduces user communication. to experience
[0011] 3: When local link failure (MCG RLF) occurs on the wireless link (MCG RL) on the side of the main control anchor base station, all wireless links (SCG RLs) on the secondary base station side will be passively affected, not only MCG Bearers The uplink and downlink data transmission that is being carried on the SCG Bearers is interrupted (the data transmission can only be resumed after the MCG RL is successfully restored and established), even if there is no local link failure (SCG RLF) in all SCG RLs, the uplink and downlink data transmission carried by all SCG Bearers must are forced to be interrupted (the data transmission can only be resumed after the MCG RL is successfully restored and the SCG Bearers configuration is reset accordingly). At this time, the data transmission between the UE and the network is completely interrupted, and it will take a period of time to rebuild and restore, which greatly reduces the user experience
[0012] According to the above-mentioned existing mechanism principles, all the above-mentioned SCG RLs on the secondary base station side are subject to the constraints and influence of the MCG RL status on the main control anchor base station side, which has many shortcomings and limitations

Method used

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  • Wireless links management method, device and system

Examples

Experimental program
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Effect test

Embodiment 1

[0190] As shown in Figure 7 series: In the eLTE system (LTE continues to evolve under the 5G framework), there are three eLTE eNB base stations connected to the same NGC core network element, and UE1 is in the wireless signal coverage of these three base stations at the same time Under this condition, it has the basic conditions for eLTE multi-connection data transmission. The macro base station eNB1 has the largest signal coverage and is suitable as a master control anchor base station Master eNB (MeNB1); the micro base stations eNB2 and eNB3 have relatively small coverage and are suitable for splitting secondary base stations Secondary eNB (SeNB2 / 3). All eLTE base stations and UE1 have the "enhanced master control + primary secondary control multi-connection data transmission mode" capability of the present invention.

[0191] Step 101: The master control anchor base station MeNB1 establishes a multi-connection data transmission mode under the control of a single MeNB1 for U...

Embodiment 2

[0195] As shown in the series of Figure 8: In the NR gNB system (the new radio access standard RAT under the 5G framework), there are three NRgNB base stations connected to the same NGC core network element, and UE2 is in the network of these three base stations at the same time. Under the coverage of wireless signals, it has the basic conditions for NR multi-connection data transmission. The macro base station gNB1 has the largest signal coverage and is suitable as the master control anchor base station Master gNB (MgNB1); the coverage of the micro base stations gNB2 and gNB3 is relatively small, and it is suitable as the secondary base station Secondary gNB (SgNB2 / 3). All NR base stations and UE2 have the "enhanced master control + primary secondary control multi-connection data transmission mode" capability of the present invention.

[0196] Step 201: The main control anchor base station MgNB1 establishes the multi-connection data transmission process through NR (for detail...

Embodiment 3

[0200] As shown in Figure 9 series: In the tightly coupled system of NR gNB and eLTE eNB (tightly coupled joint work of new RAT and eLTE standard under the 5G framework), there are 1 NR gNB base station and 2 eLTE eNB base stations connected to the same An NGC core network element, UE3 is under the wireless signal coverage of these three base stations at the same time, and has the basic conditions for NR-eLTE tightly coupled multi-connection data transmission. The macro base station gNB1 has the largest signal coverage and is suitable as a master control anchor base station Master gNB (MgNB1); the micro base stations eNB2 and eNB3 have relatively small coverage and are suitable for offloading secondary base stations Secondary eNB (SeNB2 / 3). All NR base stations, eLTE base stations and UE3 have the capability of "enhanced master control + primary secondary control multi-connection data transmission mode" of the present invention.

[0201] Step 301: The master control anchor bas...

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Abstract

The invention discloses a wireless links management method, device and system. The method comprises a target shunt secondary base station is selected by a main control anchor point base station from ashunt auxiliary base station set, the target shunt secondary base station is configured, and the configured target shunt secondary base station is taken as a secondary control anchor point base station; first type control operation for the secondary control anchor point base station and general shunt secondary base stations is supported by the main control anchor point base station, second type control operation for the general shunt secondary base stations is supported by the secondary control anchor point base station, and the first type control operation comprises the second type control operation.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method, device and system for wireless link management. Background technique [0002] For any kind of cellular mobile system, regardless of the specific radio access technology (RAT, RadioAccess Technology) behind it, it is usually composed of basic network element nodes of the cellular network (such as core network CN, gateway Gateway, centralized controller CU , base station BS, distributed node DU), terminal UE, and the most basic coverage unit serving cell Cell or serving beam Beam that provides mobile communication wireless link services. figure 1 It is a schematic diagram of a cellular network composed of macro and micro base stations (corresponding to macro and micro cells) in a cellular mobile system. Cell downlink coverage reflects: base station nodes (such as: eNB, gNB, TRP, etc.) can achieve a controllable downlink transmission effect The effect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W28/08
CPCH04W28/0215H04W28/0861H04W16/32H04W28/02H04L41/0816H04L41/0836H04L43/0811
Inventor 杨立
Owner ZTE CORP
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