Method and apparatus used in node for multi-cell scheduling in wireless communication

By introducing predefined interpretation modes into DCI, the interpretation complexity problem when subcarrier intervals are different in multi-cell scheduling is solved, and flexible multi-cell scheduling and spectrum efficiency are improved.

WO2026081636A1 Publication Date: 2026-04-23HONOR DEVICE CO LTD
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Patent Information

Application Number
PCT/CN2025/113901
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-10-16
Filing Date
2025-08-11
Publication Date
2026-04-23

AI Technical Summary

Technical Problem

In existing NR systems, multiple scheduled cells need to maintain the same subcarrier spacing, which limits the flexibility and efficiency of multi-cell scheduling. In particular, when the subcarrier spacing is different, the complexity of DCI domain interpretation increases.

Method used

By introducing predefined interpretation modes into the DCI, the interpretation process of the DCI domain is simplified for different subcarrier spacing scenarios, including VRB to PRB interleaving, PRB bundling type, frequency domain frequency hopping, and HARQ-ACK codebook configuration, thereby reducing signaling overhead and complexity.

Benefits of technology

While ensuring scheduling flexibility, it reduces the signaling overhead of DCI, improves spectrum efficiency and overall system performance, and simplifies the implementation complexity of multi-cell scheduling.

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Abstract

The present application discloses a method and apparatus used in a node for multi-cell scheduling in wireless communication. A node first receives a first information block, and subsequently receives first DCI, wherein the first DCI is used for scheduling a first cell set, and the first cell set comprises a plurality of cells; the first DCI comprises a first field, and the first information block is configured for the first field comprised in the first DCI; and whether the interpretation of the first field comprised in the first DCI depends on the first information block depends on whether all subcarrier spacings used by active BWPs respectively corresponding to all cells comprised in the first cell set are the same. The present application enhances uplink and downlink transmission configurations under multi-cell scheduling, thereby improving performance.
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