Full-Duplex Uplink Coverage With SBFD Phase Continuity
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Solution Overview
Problem
In full-duplex communication systems, terminals located at the edge of a base station's coverage often experience deteriorated communication quality, leading to issues with maintaining coherence for uplink transmissions.
Innovation Solution
The method involves performing uplink transmissions in a resource region comprising subband full duplex (SBFD) and non-SBFD symbols, with specific configurations to maintain power consistency and phase continuity, including the use of time domain windows and symbol configurations to handle events that disrupt coherence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If uplink transmission is performed in a resource region including SBFD symbols and non-SBFD symbols, then communication coverage is enhanced and system performance is improved, but coherence for the uplink transmission cannot be maintained in the resource region
Solution Approach 1:
The resource region is segmented into SBFD symbols and non-SBFD symbols with distinct coherence handling. The patent divides the transmission resources such that SBFD symbols can operate with relaxed coherence requirements while non-SBFD symbols maintain traditional coherence, allowing coverage enhancement without compromising overall transmission reliability
Solution Approach 2:
Different coherence maintenance strategies are applied to different symbol types within the same resource region. SBFD symbols use power consistency and phase continuity across the symbol boundary, while non-SBFD symbols maintain traditional coherence, allowing each region to operate with optimal quality for its specific function
2Area of stationary object
If repeated uplink signal transmission is performed to enhance coverage, then communication coverage is improved, but power consistency and phase continuity may be disrupted at symbol boundaries
Solution Approach 1:
The patent establishes power consistency and phase continuity requirements before transmitting across SBFD/non-SBFD symbol boundaries. By pre-configuring the transmission parameters and maintaining coherence properties in advance, the system ensures stable repeated transmissions without disruptions at boundaries
Solution Approach 2:
The patent maintains continuous power consistency and phase continuity across SBFD and non-SBFD symbol boundaries during repeated uplink transmissions. This continuity allows the transmission to proceed without interruption or coherence loss, enabling coverage enhancement through repetition while maintaining signal stability
Data Source
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AI summary
Disclosed are a coverage enhancement method and device in a full-duplex communication system. A method of a terminal comprises the steps of: receiving, from a base station, information instructing the performing of a UL transmission; and performing the UL transmission in a resource area including a SBFD symbol and a non-SBFD symbol, wherein, in the SBFD symbol, at least one communication among DL communication or UL communication may be performed, and, in the non-SBFD symbol, only one communication among the DL communication or the UL communication may be performed.