Single layer MIMO coverage enhancement using enhanced precoder codebook
The enhanced precoder codebook for single-layer uplink MIMO transmissions addresses the challenge of improving uplink coverage and range in wireless communication systems, achieving effective range extension and reduced base station requirements.
WO2025115001A1 Publication Date: 2025-06-05LENOVO (SINGAPORE) PTE LTD
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Patent Information
- Application Number
- PCT/IB2025/051479
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-02-15
- Filing Date
- 2025-02-12
- Publication Date
- 2025-06-05
AI Technical Summary
Technical Problem
Existing wireless communication systems face challenges in enhancing uplink coverage and range, particularly in reducing the number of base stations needed and minimizing capital expenditure for network operators.
Method used
The implementation of an enhanced precoder codebook for single-layer uplink MIMO transmissions, which includes a set of 64 length-4 vectors and supports phase rotations of antenna ports by multiples of 90 degrees, to improve coverage and range extension.
Benefits of technology
This solution significantly enhances uplink coverage and range, reducing the need for additional base stations and lowering operational costs, while maintaining effective beamforming gains even with worst-case phase alignment errors.
✦ Generated by Eureka AI based on patent content.
Abstract
Various aspects of the present disclosure relate to a user equipment (UE) for wireless communication including at least one memory and at least one processor coupled with the at least one memory and configured to cause the UE to transmit an indication to a network entity indicating UE capability, which includes an enhanced codebook for single-layer uplink multiple input multiple output (MIMO) transmissions, and receive, from the network entity, a transmit precoding matrix indicator (TPMI) indicating a value of the enhanced precoder codebook, wherein the enhanced precoder codebook includes a precoder for every combination in which the phase rotation of a first antenna port relative to each of one or more remaining antenna ports of the UE relative to a first antenna port is a multiple of 90 degrees, and the value is associated with a precoder of the enhanced precoder codebook to be used by the UE for uplink transmissions.
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