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Information transmission method and device

A technology of information transmission and message, applied in the field of communication, can solve problems such as the lack of IAB control plane information transmission scheme

Active Publication Date: 2019-12-31
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of this application provides an information transmission method and device to at least solve the problem in the related art that there is no IAB control plane information transmission scheme suitable for new wireless

Method used

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

Examples

Experimental program
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Embodiment 1

[0035] An embodiment of the present application provides a mobile communication network (including but not limited to a 5G mobile communication network), and the network architecture of the network may include network-side devices (such as base stations) and terminals. 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.

[0036] The embodiment of this application can run on figure 2 On the network architecture shown, figure 2 is a schematic diagram of the network architecture according to this application document, such as figure 2 As shown, the network architecture includes: A, an IAB node; B, a base station; C, an IAB donor.

[0037] In this embodiment, an information transmission method runn...

specific Embodiment 1

[0091] The method in this embodiment is a method in which the RRC message of the IAB node is forwarded by the base station, Figure 5 It is a schematic diagram of the protocol stack according to the specific implementation 1 of the application document.

[0092] like Figure 5 As shown, for uplink, IAB node1 generates RRC message 1, encapsulates RRC message 1 into RRC message 2 (for example, ULInformationTransferMRDC message) and sends it to MeNB. After receiving it, the MeNB parses out the RRC message 1 generated by the IAB node1, encapsulates the RRC message 1 into an X2 message (for example, RRC transfer message) and sends it to the IABdonor.

[0093] Optionally, the RRC message 1 or RRC message 2 or X2 message includes source and / or target node identification information. Among them, the node identification information is used to identify the DU part or CU part or the base station of the IAB node or IAB donor, including but not limited to: gNB-DU ID, base station ID, DU ...

specific Embodiment 2

[0097] The method in this embodiment is the first method in which the F1 message of the IAB node is forwarded by the base station. Image 6 It is a schematic diagram of a protocol stack according to Embodiment 2 of the present application. Note that, Image 6 There may or may not be an RRC protocol layer between the IAB node 1 and the MeNB.

[0098] like Image 6 As shown, for the uplink, after IAB node1 generates the F1 message, it is encapsulated into RRC message 1 (for example, ULinformation transfer message, newly defined RRC message); or, IAB node 1 directly delivers the F1 message to the PDCP layer for processing without After RRC layer processing. Optionally, IAB node 1 sends it to MeNB through the SRB dedicated to forwarding F1 messages; optional, IAB node 1 obtains bearer configuration information from the donor CU through RRC messages or F1 messages, and the bearer configuration information is used to configure the information dedicated to forwarding F1 messages ...

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Abstract

The invention provides an information transmission method and device. The method comprises the following steps: an IAB node sends an F1 message to the base station; and the F1 message is forwarded tothe IAB controller through the base station, so that the problem of lack of an IAB control plane information transmission scheme suitable for new wireless in related technologies is solved, and the control plane information is forwarded between the IAB node and the IAB controller timely and accurately.

Description

technical field [0001] The present application relates to the field of communications, and in particular, to an information transmission method and device. Background technique [0002] In related technologies, compared with the long-term evolution system LTE, the new wireless NR has a larger available bandwidth, massive MIMO, and the use of multi-beam, enabling the research and application of integrated access and backhaul links (IAB, integrated access and backhaullinks) become possible. Through wireless backhaul links and relay links, dense NR cell networks can be deployed more flexibly without correspondingly increasing the dense deployment of transmission networks. The access node that supports the wireless access of the UE and wirelessly returns the data packets of the user plane or the control plane is called an IAB node (IAB node). It can have a distributed unit DU or a gNB logic function. The IAB node also has a mobile terminal MT Logical functions (may also be ref...

Claims

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Application Information

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IPC IPC(8): H04W76/27H04L45/16
CPCH04W76/27H04W76/12H04W40/22H04W24/02H04W92/20H04W76/16H04W84/047H04W28/0864H04W76/11H04W88/14
Inventor 黄莹陈琳
Owner ZTE CORP
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