Transmission processing method, apparatus, device, and readable storage medium

By flexibly configuring multiple time-frequency domain resources in non-terrestrial networks, terminals and network-side devices transmit through random access channels, solving the terminal synchronization problem and achieving communication reliability and stability in a UL-only TRP environment.

CN122317890APending Publication Date: 2026-06-30VIVO MOBILE COMM CO LTD
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Patent Information

Application Number
CN202411972879.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In non-terrestrial network scenarios, uplink time-frequency offset compensation is difficult due to inaccurate ephemeris or GPS information. Existing single-sequence PRACH designs cannot meet the synchronization requirements of terminals, especially in UL-only TRPs where UEs cannot obtain accurate downlink synchronization.

Method used

The terminal and network-side equipment obtain the first configuration, indicating multiple time-frequency domain resources. The terminal uses these resources to send random access channels. The network-side equipment performs time-frequency offset analysis to estimate the terminal's time-frequency offset and supports subsequent closed-loop compensation mechanisms.

Benefits of technology

This ensures that the terminal's synchronization requirements are met even when a downlink synchronization signal is unavailable, thus guaranteeing the reliability and stability of communication.

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Abstract

This application discloses a transmission processing method, apparatus, device, and readable storage medium, belonging to the field of communication technology. The method includes: a terminal obtaining a first configuration, the first configuration being used to indicate at least one of the following: relevant information of a first time-frequency domain resource, relevant information of a second time-frequency domain resource, the first time-frequency domain resource including a plurality of second time-frequency domain resources; the terminal transmitting a random access channel through the plurality of second time-frequency domain resources, wherein each second time-frequency domain resource transmits at least a portion of the random access channel.
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