Communication method, apparatus, and storage medium

By processing the target PDCP PDU in the IAB network and sending it to the second node within the receiving window, the problem of receiving failure caused by the parent node's buffered information exceeding the receiving window is solved, and the communication reliability of the IAB node migration process is improved.

CN115988562BActive Publication Date: 2026-06-23DATANG MOBILE COMM EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DATANG MOBILE COMM EQUIP CO LTD
Filing Date
2021-10-22
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

During IAB node switching, the configuration information of child nodes cached by the parent node may exceed the receiving window of the child nodes, causing the child nodes to fail to receive the configuration information and increasing the switching latency.

Method used

In the IAB network, the first node processes the target PDCP PDU under the condition that the target message is sent, so that it retains the target PDCP PDU after receiving it and sends it to the second node, thus ensuring that the target message is within the receiving window of the second node.

Benefits of technology

Successful reception of the target message by the second node was achieved, improving the communication reliability of the IAB node migration process and avoiding the increase in migration time.

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Abstract

The application provides a communication method, device and storage medium, which are applied to an IAB network, the IAB network comprising a first node and a second node, the second node being a child node of the first node, and the first node and the second node being IAB nodes. On the side of the first node, the method comprises: determining that the IAB network satisfies a sending condition of a target message, the target message being carried in a target PDCP PDU and the target message being associated with a previous node of the second node, and the target PDCP PDU being buffered in the first node; processing the target PDCP PDU so that the second node preserves the target PDCP PDU after receiving the target PDCP PDU; and sending the target PDCP PDU to the second node. Thus, by processing the target PDCP PDU carrying the target message related to the migration of the second node, the successful reception of the target message buffered in the first node by the second node is realized.
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