SBFD Uplink Transmission Without SS/PBCH Symbol Overlap
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing uplink channels, particularly in high-frequency bands, due to overlapping symbols that include synchronization signals, which can hinder effective data transmission and increase latency.
Innovation Solution
Implementing a subband non-overlapping full duplex (SBFD) symbol configuration that allows for uplink transmission on symbols that do not include synchronization signals or physical broadcast channel blocks, utilizing downlink or flexible symbols for efficient data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If overlapping symbols including synchronization signals are used for uplink channel transmission, then resource utilization is improved, but transmission reliability deteriorates due to interference with synchronization signals
Solution Approach 1:
The patent segments the uplink channel transmission by identifying and separating symbols containing synchronization signals from other uplink symbols. The terminal device determines a first set of symbols containing synchronization signals and a second set of symbols for uplink channel transmission, ensuring they do not overlap. This segmentation resolves the contradiction by maintaining resource utilization while preventing interference with synchronization signals, thereby ensuring transmission reliability.
2Speed
If random access procedure is simplified, then access speed is improved, but signal quality deteriorates in high-frequency bands
Solution Approach 1:
The patent applies local quality by adjusting transmission parameters specifically for high-frequency bands while maintaining the simplified random access procedure. The terminal device configures uplink channel transmission based on the determined symbol sets, applying appropriate power control and resource allocation tailored to high-frequency characteristics. This allows fast access to be maintained while compensating for signal quality degradation through localized parameter optimization.
Data Source
AI summary
The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting higher data rates. A method performed by a terminal in a wireless communication system is provided. The method includes receiving, from a base station, configuration information associated with a subband non-overlapping full duplex (SBFD) symbol, identifying whether one or more symbols allocated for a physical uplink shared channel (PUSCH) associated with random access are all SBFD symbols and do not include a symbol of a synchronization signal (SS)/physical broadcast channel (PBCH) block, and, in case that the one or more symbols allocated for the PUSCH are all SBFD symbols and do not include the symbol of the SS/PBCH block, transmitting, to the base station, the PUSCH, wherein the SBFD symbol is for an uplink transmission using at least one of a downlink symbol or a flexible symbol.