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A pscell switching method and device

A technology for equipment and user equipment, applied in the field of Pscell switching methods and equipment, can solve problems such as no solution, and achieve the effects of improving switching efficiency and reducing information transmission volume

Active Publication Date: 2021-01-22
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, in the scenario where the LTE system and the 5G system are tightly coupled and the SN (slave node, 5G base station) is separated from the CU / DU, how to implement the pscell (Primary Secondary cell, primary secondary cell) of the UE (User Equipment, user terminal) secondary cell) handover, there is no complete solution

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  • A pscell switching method and device
  • A pscell switching method and device
  • A pscell switching method and device

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Embodiment Construction

[0056] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the present invention. Some embodiments of the technical solution, but not all embodiments. Based on the embodiments recorded in this application document, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the technical solutions of the present invention.

[0057] Please refer to figure 1 , figure 1 These are two architecture diagrams of LTE and 5G core networks in the scenario of tight coupling and tight interworking. In these two architecture diagrams, the base station under the 4G network, that is, the LTE MeNB, is used as the main base station, and th...

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Abstract

The present invention discloses a Pscell handover method and equipment. The method includes: the secondary base station SN determines that the target Pscell for user equipment UE handover is the target distribution node gNB‑DU; the SN sends a message carrying a tunnel endpoint identifier TEID to The main base station MN, so that the MN and the UE perform data exchange through the target gNB-DU, and the TEID is used to identify a data link between the target gNB-DU and the MN.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a Pscell switching method and device. Background technique [0002] In the LTE (Long Term Evolution, Long Term Evolution) system, namely the 4G network, E-UTRAN (Evolved UMTS Terrestrial Radio Access Network, Evolved UMTS Terrestrial Radio Access Network) is composed of multiple eNodebs (Evolved Node B, evolved base station) , the eNodeB and the EPC (Evolved Packet Core, core packet network evolution) are connected through the S1 interface, and the eNodeBs are connected through the X2 interface. In the 5G system, it is considered to introduce a CN (Central unit, central node) for centralized control and scheduling, and the RRC (Radio Resource Control, radio resource control) function of the 5G base station and some layer 2 or / and layer 1 functions are in the center. Node CU, other functions of 5G base station are deployed on DU (Istribute unit, distribution...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W36/08
CPCH04W36/00H04W36/0033H04W36/0011H04W88/08H04W36/087H04W88/085H04W76/15H04W36/0027
Inventor 刘爱娟
Owner DATANG MOBILE COMM EQUIP CO LTD