Timing and framework structure in an integrated access backhaul (IAB) network

DE112018004512B4Active Publication Date: 2025-11-06QUALCOMM INC
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Patent Information

Application Number
DE112018004512
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2018-10-08
Filing Date
2018-10-10
Publication Date
2025-11-06
Estimated Expiration
2038-10-10

AI Technical Summary

Technical Problem

Existing wireless communication systems face challenges in maintaining synchronization and determining transmission and reception timing lines and frame structures in integrated access backhaul (IAB) networks, particularly in multi-hop topologies, which affect network performance and user experience.

Method used

The implementation of mechanisms for communication in IAB networks using multi-hop topologies, where relay nodes exchange synchronization information, adjust internal synchronization references, and determine transmission and/or reception time lines and frame structures, utilizing gap periods and cyclic prefixes to optimize communication.

Benefits of technology

This approach enhances network synchronization, reduces interference, and improves resource usage efficiency, thereby improving network capacity and reducing latency.

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Abstract

Methods for wireless communication, including: Determine, by means of a first wireless communication device, one or more transmission frame configurations for communicating with one or more wireless communication devices of a plurality of wireless communication devices of a multi-hop wireless network, wherein each of the one or more transmission frame configurations includes at least one first transmission gap period or cyclic prefix (CP) type; and Communicating through the first wireless communication device with one or more wireless communication devices of the plurality of wireless communication devices of communication signals based on one or more transmission frame configurations, wherein at least one first communication signal of the communication signals contains backhaul data; Switching, by the first wireless communication device, from a first CP type to a second CP type, based on at least one capability parameter of the one or more wireless communication devices of the plurality of wireless communication devices, transmit-receive switching requests of the one or more wireless communication devices of the plurality of wireless communication devices, synchronization reference switching requests of the one or more wireless communication devices of the plurality of wireless communication devices, or synchronization references of the one or more wireless communication devices of the plurality of wireless communication devices, wherein the first CP type and the second CP type contain different CP lengths. which includes communicating the communication signals: Communicate, through the first wireless communication device with a second wireless communication device of the multitude of wireless communication devices, the first communication signal, based on the first CP type; and Communicate, through the first wireless communication device with the second wireless communication device, a second communication signal of the communication signals based on the second CP type.
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Citation Information

Patent Citations

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