Devices and methods for pusch and DMRS transmission

By optimizing the start points for PUSCH and DMRS transmissions within SBFD symbols, the system addresses self-interference issues in full duplex communication, enhancing latency reduction and resource utilization efficiency.

WO2024093191A9PCT designated stage expired Publication Date: 2026-01-15LENOVO (BEIJING) LTD
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Patent Information

Application Number
PCT/CN2023/094029
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-05-12
Publication Date
2026-01-15

AI Technical Summary

Technical Problem

In wireless communication systems with advanced full duplex modes, simultaneous downlink and uplink transmissions on the same carrier cause self-interference, affecting the performance of physical uplink shared channel (PUSCH) and demodulation reference signal (DMRS) transmissions, particularly in scenarios where subband full duplex (SBFD) symbols are used.

Method used

A terminal device and network device configuration system that determines optimal start points for PUSCH and DMRS transmissions within SBFD symbols, allowing for efficient resource allocation and minimizing self-interference by puncturing unnecessary symbols, thereby improving communication performance.

Benefits of technology

This approach reduces transmission latency and enhances the utilization efficiency of UL subbands, improving the overall performance of PUSCH and DMRS transmissions in SBFD scenarios.

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Abstract

A method for physical uplink shared channel (PUSCH) and demodulation reference signal (DMRS) transmission is disclosed. A terminal device receives a configuration for physical uplink shared channel (PUSCH) repetitions and a demodulation reference signal (DMRS) from a network device (910). Based on the configuration, the terminal device determines at least one of a start point for PUSCH symbols or a start point for at least one DMRS symbol in a DL slot with SBFD symbols (920). Based on the at least one of start point for the PUSCH symbols or the start point for the at least one DMRS symbol, the terminal device determines at least one symbol for PUSCH transmission and at least one symbol for DMRS transmission in the DL slot with the SBFD symbols (930). In this way, PUSCH transmission latency is reduced and UL subband utilization efficiency is improved, and thus the performance of communications is improved.
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