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Information transmission method and device

A technology for information transmission and resource allocation information, applied in the field of information transmission methods and devices, can solve problems such as complex link switching process and prolongation of link interruption, so as to increase flexibility, avoid interruption delay, and solve link interruption time-prolonging effect

Pending Publication Date: 2020-02-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present application provides an information transmission method and device, so as to at least solve the problem in the related art that the link switching process in the IAB network is complicated and leads to prolonged link interruption

Method used

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  • Information transmission method and device
  • Information transmission method and device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0031] An embodiment of the present application provides a mobile communication network (including but not limited to an IAB mobile communication network), and the network architecture of the network may include an IAB host entity part (also called a CU), a DU part, and a terminal. Wherein, the terminal includes a common terminal, and also includes a terminal function part of an IAB entity. This embodiment provides an information transmission method that can run on the above-mentioned network architecture. It should be noted that the operating environment of the above-mentioned information transmission method provided in the embodiment of the present application is not limited to the above-mentioned network architecture.

[0032] The method embodiment provided in Embodiment 1 of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking running on a mobile terminal as an example, image 3 It is a block diagram of a...

specific Embodiment 1

[0105] Figure 5 It is a schematic diagram of the specific embodiment 1 of the application document, such as Figure 5 As shown, in this embodiment, the UE is connected to M-DU1, and reports the measurement result to the donor CU, and the donor CU selects a secondary DU (S-DU) for the UE based on the measurement report.

[0106] Step 1. After selecting the S-Du based on the measurement report, the donor CU sends a UE Context Setup Request message to the S-DU for generating UE context information.

[0107] Wherein, the UE Context Setup Request message includes at least one of the following: an established but not activated cell group identifier; an established but not activated path identifier, including an uplink GTP tunnel identifier or a DU identifier; an established but not activated signaling bearer identifier; An established but not activated data bearer identity; an established detached bearer identity.

[0108] The RRCConnectionReconfiguration message includes at leas...

specific Embodiment 2

[0118] Image 6 It is a schematic diagram of the link conversion process according to the specific embodiment 2 of the present application, such as Image 6 shown, including the following steps:

[0119]Step 1: DU1 sends link failure or link congestion information to CU; wherein, link failure or link congestion information includes: link failure indication; link congestion indication; channel status report; link identification; DU identification; current load report.

[0120] Step 2: CU judges and decides to activate the link between DU2 and IAB;

[0121] Step 3: The donor-CU sends a UE context adjustment request message to DU2, including the RRCConnectionReconfiguration message generated for the UE;

[0122] Wherein, the UE Context Modification Request message includes at least one of the following: an activated signaling bearer identifier; an activated data bearer identifier; an activated path identifier, including an uplink GTP tunnel identifier or a DU identifier; an ac...

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PUM

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Abstract

The invention provides an information transmission method and device. The information transmission method comprises the following steps: an IAB donor entity part transmits the information to the DU, wherein the information is used for indicating the DU to perform link state switching. By adoption of the scheme, the DU performs link state switching in time according to the received information, sothat the flexibility of link switching is improved, and long-time interruption time delay is avoided, and the problem of link interruption time delay caused by complex link switching process in the IAB network in the related art is solved.

Description

technical field [0001] The present application relates to but not limited to the communication field, and in particular, relates to an information transmission method and device. Background technique [0002] Related technologies In order to improve network capacity and coverage while taking into account the need for flexibility in cell deployment, a relay link supporting wireless backhaul transmission is proposed to implement dense network deployment. The node supporting the relay function is called Relay Node, or RN for short. RN provides functions and services similar to ordinary eNB for UEs accessing its cell. The wireless interface between RN and UE is called "Access Link". Access to a base station eNB serving it, and the eNB serving the RN is called a donor base station (Donor eNB, DeNB for short). The wireless interface between the RN and the DeNB is called a "Backhaul Link". [0003] The future communication technology supports larger bandwidth and supports larger...

Claims

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Application Information

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IPC IPC(8): H04W8/08H04W36/00
CPCH04W8/08H04W36/0027H04W36/0055H04W36/087H04W84/047H04W88/085H04W36/305H04W92/20H04W76/12H04W76/19H04W76/11H04W76/27H04W72/0446H04W72/0453H04W88/14H04W72/27
Inventor 罗薇陈琳
Owner ZTE CORP
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