Communication method and apparatus, and storage medium

By making the leading sequence and data symbol of the target data occupy the same subband and sub-segment in the target resource, and dividing the time-frequency resources into multiple sub-bands and sub-segments, the problems of pilot collision and data collision in the uplink data transmission of a large number of terminals are solved, and the accuracy of channel estimation and the performance of the wireless communication system are improved.

WO2025112999A1PCT designated stage expired Publication Date: 2025-06-05DATANG MOBILE COMM EQUIP CO LTD
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Patent Information

Application Number
PCT/CN2024/126579
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-29
Filing Date
2024-10-22
Publication Date
2025-06-05

AI Technical Summary

Technical Problem

During the uplink data transmission of huge numbers of terminals, the probability of pilot collision and data collision increases, resulting in a decrease in the accuracy of channel estimation and affecting the performance of wireless communication systems.

Method used

By in the target resource, the leading sequence and data symbol of the target data occupy the same subband and sub-segment, the leading sequence can be used as pilots of the data symbols for channel estimation, reducing pilot collisions; at the same time, the time-frequency resources are divided into multiple sub-bands and multiple sub-segments, and different terminals or data occupy different resource locations as much as possible to reduce data collisions.

Benefits of technology

It effectively reduces pilot collision and data collision problems, improves channel estimation accuracy, improves the performance of wireless communication systems, and supports initial access and data transmission of huge numbers of terminals.

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Abstract

The present application provides a communication method and apparatus, and a storage medium. A terminal sends data to a network device by means of frequency-domain resources and time-domain resources, wherein the frequency-domain resources comprise a plurality of sub-bands, and the time-domain resources comprise a plurality of sub-segments. On the terminal side, the communication method comprises: determining a target resource for transmitting target data, wherein the target resource comprises at least one sub-band among a plurality of sub-bands and at least one sub-segment among a plurality of sub-segments, the sub-band occupied by a preamble sequence of the target data is the same as the sub-band occupied by data symbols of the target data, and the sub-segment occupied by the preamble sequence is the same as the sub-segment occupied by the data symbols; and on the target resource, sending the target data to the network device. Therefore, by means of the plurality of sub-bands and the plurality of sub-segments and by means of the preamble sequence and the data symbols occupying the same sub-band and the same sub-segment, pilot collisions and data collisions in uplink data transmission are mitigated.
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Citation Information

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    CN120076010A

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