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Method and device used in user equipment and base station for wireless communication

A user equipment and wireless communication technology, applied in wireless communication, electrical components, etc., can solve problems such as delay-sensitive business QoS requirements are not up to standard, and achieve the effect of ensuring non-interruption and meeting QoS requirements

Active Publication Date: 2020-11-06
SHANGHAI LANGBO COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some services in the NR system are delay-sensitive services, and interruption of transmission during handover will lead to substandard QoS requirements for delay-sensitive services

Method used

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  • Method and device used in user equipment and base station for wireless communication
  • Method and device used in user equipment and base station for wireless communication
  • Method and device used in user equipment and base station for wireless communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1 illustrates the flowchart of signal transmission, as attached figure 1 shown.

[0047] for UE U1 , sending the first wireless signal to the base station N2 in step S10, maintaining the first type of bearer and the second type of bearer in step S11, establishing the first type of bearer in step S12, releasing the first type of bearer in step S13, In step S131, release the high-level entity set corresponding to the first bearer and release the first type of logical channel, in step S132 maintain the high-level entity set corresponding to the second bearer and maintain the first type of logical channel, Step S14 establishes a first-type entity corresponding to the second cell group for the separated data radio bearer, and reconfigures {second-type entity, the first-type logic Channel, at least one of the second type of logical channels}, receives the first signaling in step S15, and receives the second wireless signal in step S16.

[0048] for base stati...

Embodiment 2

[0189] Embodiment 2 illustrates another flow chart of signal transmission, as attached figure 2 shown. Among them, the steps shown in dashed boxes B1, B2 and B3 are optional.

[0190] for UE U4 , sending a first wireless signal in step S40, sending a third wireless signal in step S41, maintaining the first type of bearer and the second type of bearer in step S42, establishing the first type of bearer in step S43, and releasing the first type of bearer in step S44 , wherein the first bearer is released in step S441, the second bearer is maintained in step S442, the second type of bearer is established in step S45, the first signaling is received in step S46, the fourth signaling is received in step S47, and the second signaling is received in step S48 second wireless signal, and receive a fourth wireless signal in step S49.

[0191] for base station N5 , receiving the first wireless signal in step S50, maintaining at least one of {the first type of bearer, the second ty...

Embodiment 3

[0204] Embodiment 3 illustrates another flow chart of signal transmission, as attached image 3 shown. Among them, the steps shown in dashed boxes B4, B5 and B6 are optional.

[0205] for UE U7 , send a first wireless signal in step S70, send a third wireless signal in step S71, maintain the first type of bearer and the second type of bearer in step S72, release the first type of bearer in step S73, wherein release the first type of bearer in step S731 , keep the second bearer in step S732, receive the first signaling in step S74, receive the fourth signaling in step S75, receive the second wireless signal in step S76, and receive the fourth wireless signal in step S77.

[0206] for base station N8 , receiving a first wireless signal in step S80, maintaining at least one of {the first type of bearer, the second type of bearer} in step S81, releasing the first bearer in step S82, sending the first signaling in step S83, and in step S83 S84 Send a second wireless signal.

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Abstract

The present application discloses a method and a device used in a wireless communication user equipment and a base station. The UE sends a first wireless signal. Wherein, the first wireless signal includes a first report. The first report is related to the channel quality of the first link, the channel quality of the second link and the channel quality of the third link. The first report is used to determine the user equipment handover. The first link is a wireless link from the base station corresponding to the first cell to the user equipment, the second link is a wireless link from the base station corresponding to the second cell to the user equipment, and the third The link is a wireless link from the base station corresponding to the third cell to the user equipment. In the present application, by designing the first wireless signal, the switching process in the dual link transmission is optimized to realize lossless switching, thereby improving the overall performance of the system.

Description

technical field [0001] The present application relates to a handover solution in a wireless communication system, in particular to a method and device for handover transmission between access networks based on dual links. Background technique [0002] In an LTE (Long Term Evolution) system, switching of dual link (DC, Dual Connectivity) communication only occurs between master cell groups (MCG, Master Cell Group). In the dual-link communication scenario, the base station corresponding to the primary cell group first releases the secondary cell group (SCG, Secondary Cell Group) before handover, and then switches to another primary cell group. This will interrupt the transmission of wireless data carried by the secondary cell group. [0003] In the NR (New Radio) system, LTE-NR coupling communication (tight interworking) is an important scenario. LTE-NR coupled communication is also called LTE-NR DC. In some scenarios, the LTE cell group belongs to the primary cell group, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/30H04W36/00H04W24/10
CPCH04W24/10H04W36/0027H04W36/0083H04W36/30
Inventor 张晓博
Owner SHANGHAI LANGBO COMM TECH CO LTD