FDRSB Training Signals on Interleaved Subcarriers for Signal Correction
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing frequency-dependent residual side bands, which affect signal quality and interference in multiple-access technologies like LTE and NR, particularly in scenarios involving device-to-device communication and network node interactions.
Innovation Solution
Implementing frequency-dependent residual side band (FDRSB) training signals transmitted via different ports on interleaved subcarriers, with specific sets of subcarriers positioned below and above the carrier frequency to minimize overlap and enhance signal correction mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If FDRSB training signals are transmitted on interleaved subcarriers with mirror subcarriers, then signal quality and interference reduction are improved, but system complexity and processing requirements increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring FDRSB training signals on specific interleaved subcarriers with predetermined mirror relationships before actual data transmission. The network node and UE perform FDRSB correction in advance based on these training signals, establishing correction parameters that are then applied to subsequent communications. This preliminary correction setup improves signal quality while managing system complexity through structured, pre-planned signal arrangements.
Solution Approach 2:
The FDRSB training signals serve as an intermediary element between the transmitted signal and the received signal. These training signals are specifically designed with mirror subcarrier relationships that enable the extraction of FDRSB characteristics. The extracted correction information acts as a mediator that compensates for frequency-dependent residual sideband effects, improving reliability without requiring complete system redesign.
2Object-generated harmful factors
If FDRSB correction is performed using training signals with mirror subcarriers, then interference reduction is improved, but processing time and computational load increase
Solution Approach 1:
The system performs FDRSB correction in advance using dedicated training signals before actual data transmission begins. The network node transmits FDRSB training signals, the UE measures these signals to extract FDRSB correction information, and both parties apply corrections beforehand. This preliminary action reduces interference in subsequent communications while minimizing processing time during actual data transmission.
Solution Approach 2:
The patent segments the communication process into distinct phases: FDRSB training signal transmission, measurement and extraction of correction information, and application of corrections. By separating the FDRSB correction function into dedicated training signal processing, the system reduces interference effectively while managing computational load through structured segmentation of processing tasks.
3Measurement precision
If multiple ports transmit FDRSB training signals on different subcarriers, then correction precision is improved, but device complexity and resource requirements increase
Solution Approach 1:
The patent segments the FDRSB measurement function across multiple transmission ports, with each port transmitting training signals on specific interleaved subcarriers. This segmentation allows the system to extract FDRSB correction information from multiple independent measurements, improving correction precision through diversified measurement paths while managing device complexity through structured port assignment.
Solution Approach 2:
Multiple transmission ports are configured to perform the same FDRSB measurement function simultaneously, each using interleaved subcarriers with mirror relationships. This multi-functional approach improves correction precision by providing multiple measurement opportunities while maintaining consistent processing methods across ports, managing complexity through standardized procedures.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a frequency dependent residual side band (FDRSB) training signal via one or more time resources. The UE may transmit an indication of network node FDRSB correction information that is based at least in part on the FDRSB training signal. The UE may receive a communication, reception of the communication comprising applying a UE FDRSB correction that is based at least in part on the FDRSB training signal. Numerous other aspects are described.