Non-uniform pilot pattern using difference set
The use of analytical sampling patterns based on difference sets for signal transmission improves channel estimation accuracy and communication performance by reducing interference and increasing the number of UEs/ports.
WO2026142439A1PCT designated stage Publication Date: 2026-07-02HUAWEI TECH CO LTD +1
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Filing Date
- 2024-12-23
- Publication Date
- 2026-07-02
AI Technical Summary
Technical Problem
Current signal transmission techniques face limitations in channel estimation accuracy and UE/port multiplexing due to high comb values, leading to increased interference and reduced number of UEs/ports that can be estimated with appropriate accuracy.
Method used
A method and apparatus for signal transmission using an analytical sampling pattern generation based on difference sets, allowing orthogonal multiplexing of reference signals in time and frequency resources to reduce interference and increase the number of UEs/ports.
Benefits of technology
This approach enhances channel estimation accuracy and communication performance by reducing signal interference and increasing the number of UEs/ports that can be multiplexed effectively.
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Smart Images
Figure RU2024000383_02072026_PF_FP_ABST
Abstract
The present disclosure provides a method and apparatus for signal transmission. In the method, a first device obtains a first position sequence for indicating time positions and frequency positions of reference signals; the first position sequence is determined based on a first sequence set; the first sequence set is determined based on at least one difference set; the first sequence set includes a plurality of groups of first sequences; arbitrary two groups of first sequences among the plurality of groups of first sequences are orthogonally multiplexed in a grid that consists of time resources and frequency resources; and the first device transmits or receives the reference signals based on the first position sequence. Orhtogonal multiplexing of arbitrary two groups of first sequences is achieved by minimal possible number of modifications of difference set which leads to near to optimal recovery performance for each device.
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