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Data processing method and device of IAB node and IAB node

A data processing and node technology, applied in the field of communication, can solve problems such as unfavorable network fairness, inability to consider the remaining transmission hops of DRB, etc., and achieve the effect of reducing network transmission delay

Pending Publication Date: 2022-06-21
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a data processing method and device of an IAB node and an IAB node, so as to solve the problem in the prior art that the remaining transmission hops of the DRB cannot be considered when scheduling, which is not conducive to network fairness

Method used

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  • Data processing method and device of IAB node and IAB node
  • Data processing method and device of IAB node and IAB node
  • Data processing method and device of IAB node and IAB node

Examples

Experimental program
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Effect test

example 1

[0112] Example 1, downlink transmission

[0113] 1) The IAB-donor receives the data packet from the upper layer and constructs the downlink BAP PDU. Add the remaining transmission hops of the DRB in the BAP header, and send it to the next-hop IAB node, and enter 2). The remaining transmission hops of the current DRB refer to the total number of hops for the DRB to complete end-to-end transmission from the IAB-donor to the target IAB node.

[0114] 2) The IAB node receives the BAP PDU from the previous hop IAB node or IAB-donor.

[0115] There are two situations:

[0116] a. If the destination address in the BAP header is not the current IAB node, go to 3).

[0117] b. If the destination address in the BAP header is the current IAB node, delete the BAP header, and deliver the SDU to the upper layer to complete the transmission of the data packet. (At this time, the data packet may belong to either the IAB node or the terminal connected under the IAB node).

[0118] 3) The ...

example 2

[0120] Example 2, uplink transmission

[0121] 1) The access IAB node receives uplink data from the terminal.

[0122] The IAB node first encapsulates the uplink data received from the terminal into an F1 data packet and submits it to the BAP layer. When the BAP layer of the IAB node receives the data packet from the upper layer, it constructs a BAP PDU and adds the remaining transmission hop of the DRB to the BAP header. number, and send it to the next hop IAB node, access 2). The remaining transmission hops of the current DRB refer to the total hops of the end-to-end transmission of the DRB from the current IAB node to the IAB-donor.

[0123] 2) The IAB node receives the BAP PDU from the previous hop IAB node.

[0124] When the IAB node receives the BAP PDU sent by the previous hop IAB node, it needs to continue sending the data to the next hop IAB node. At this time, the remaining transmission hops in the BAP header are decremented by 1 (if the destination address in the...

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Abstract

The embodiment of the invention provides a data processing method and device of an IAB node and the IAB node. The method comprises the steps that a first IAB node sends a BAP PDU; the BAP packet header of the BAP PDU comprises the residual transmission hop count; wherein the residual transmission hop count is used for indicating the residual transmission hop count of the current data radio bearer DRB from the first IAB node to the target node. According to the embodiment of the invention, the residual transmission hop count experienced by the DRB from the current IAB node to the target node is increased in the BAP packet header, so that the residual transmission hop counts of different DRBs can be considered during IAB network scheduling, and the network transmission delay is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a data processing method and device of an IAB node and the IAB node. Background technique [0002] IAB (Integrated Access and Backhaul) network technology achieves the purpose of expanding the coverage of base stations by relaying wireless signals between multiple nodes. [0003] With the further development of IAB technology, the topology fairness of the IAB network is particularly important. While the IAB network enhances the coverage through multi-hop, it also increases the end-to-end transmission delay. In the IAB network deployment, it consists of IAB donor (IAB host node or central control node), IAB node and terminal. The IAB donor is used to connect to the core network, transmit the information of the IAB nodes and terminals back to the core network, and transmit the information of the core network to the IAB nodes and terminals. IAB donor is also respons...

Claims

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Application Information

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IPC IPC(8): H04W24/02
CPCH04W24/02H04L12/04
Inventor 李思栋王达
Owner DATANG MOBILE COMM EQUIP CO LTD
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