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Method and device for carrying out LCID extension in IAB network

A network and intermediate node technology, applied in the field of communication, can solve problems such as limited number of bits, IAB nodes unable to support bearer mapping, etc.

Active Publication Date: 2020-08-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The embodiment of the present invention provides a method and device for extending LCID in an IAB network, so as to at least solve the problem in the related art that the IAB node cannot support one-to-one bearer mapping due to the limited number of bits of the LCID of the IAB network

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  • Method and device for carrying out LCID extension in IAB network
  • Method and device for carrying out LCID extension in IAB network
  • Method and device for carrying out LCID extension in IAB network

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Embodiment Construction

[0032] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0033] figure 1 It is the integrated access backhaul reference architecture 1a defined by 3GPP. Such as figure 1 As shown, an IAB node (IAB Node) serves as a DU to provide access services for subordinate UEs, and each IAB node is connected to the upper-level parent node through a mobile terminal (MT) at the same location.

[0034] The above-mentioned MT, as a special access user of the parent node, shares the access bandwidth with other common access users (UE) of the parent node. IAB Donor is a node with a wired connection, which can contain multiple DUs connected to the same CU through a wired connection.

[0035] The DU and CU of each IAB node are also connected through the F1 interface, so a ...

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Abstract

The invention provides a method and device for carrying out LCID extension in an IAB network. The method comprises the steps that a first IAB node informs the IAB network that the first IAB node is anIAB node in an initial access process; the MT of the first IAB node and a second IAB node start an extended LCID for communication, wherein the second IAB node is a mother node of the first IAB node,an IAB Donor node or a DU of the IAB Donor node. According to the invention, one-to-one bearing mapping at the IAB node can be effectively supported by configuring and starting the extended LCID.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for extending LCID in an IAB network. Background technique [0002] The fifth-generation mobile communication technology (5G, 5th Generation) being researched by 3GPP will achieve greater throughput, more user connections, lower latency, higher reliability, and lower power consumption (including network side equipment and user terminals). At present, in the discussion of 3GPP, Integrated Access and Backhaul (IAB, Integrated Access and Backhaul) technology has been established as a new research project, and its goal is to enable one or more IAB nodes to serve as the UE of the parent node, through Its local access resources are connected to the mother node, and on this basis, a multi-hop wireless self-backhaul network is formed to provide a backhaul connection for the local access UE of the IAB node. [0003] In 5G UDN deployment scenarios, the applicability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/18H04L12/24
CPCH04W16/18H04L41/145
Inventor 邹伟陈琳
Owner ZTE CORP