Network node, user device, and communication method

JPWO2025115133A1Pending Publication Date: 2025-06-05
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
JP2025560442
Authority / Receiving Office
JP · JP
Patent Type
Applications
Filing Date
2023-11-29
Publication Date
2025-06-05

AI Technical Summary

Technical Problem

As frequency bands increase, especially in 6G using the sub-terahertz band, the number of SSBs in an SS burst is expected to rise, potentially increasing the time required for beam sweeping and cell search in mobile communication systems.

Method used

The network node simultaneously transmits N synchronization signal blocks at different frequencies within the cell band, allowing for beam sweeping to be completed more efficiently by reducing the time required for each beam direction switch.

Benefits of technology

This approach effectively suppresses the increase in time needed for beam sweeping and cell search, even at higher frequency bands, by distributing the synchronization signal blocks across different frequencies and beam directions.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

A network node according to a first aspect manages a cell in a mobile communication system, and comprises: a transmission unit that transmits, by beamforming, a synchronization signal block used in a cell search performed by a user device; and a control unit that performs beam sweeping for switching a transmission beam direction of the synchronization signal block at predetermined time intervals. The control unit controls the transmission unit to simultaneously transmit N (N: an integer of 2 or more) synchronization signal blocks in a band of the cell at different frequencies.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Frequency division multiplexing synchronization signals (SS) for wideband operation

    US20190058538A1

  • Method and Apparatus for Synchronization Signal Transmission

    US20200288418A1

  • terminal

    WO2021009821A1

  • Terminal, base station, and communication method

    WO2022049733A1