SBFD Switching Point Limit Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communications systems face challenges in reducing frequent switching between sub-band full duplex (SBFD) and non-SBFD symbols, leading to increased hardware complexity and interruptions during transitions, which affects transmission and reception efficiency.
Innovation Solution
Defining a maximum number of switching points between SBFD and non-SBFD symbols within a period, configured by a base station based on user equipment capability, to reduce interruptions and improve resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If frequent switching between SBFD and non-SBFD symbols is allowed, then resource utilization flexibility is improved, but hardware complexity and transmission interruptions increase
Solution Approach 1:
The patent applies parameter changes by modifying the switching behavior between SBFD and non-SBFD symbols. Specifically, it introduces a switching point limit parameter that constrains the number of transitions within a time period (e.g., slot or mini-slot). This parameter adjustment reduces hardware complexity by limiting the frequency of switching operations while still allowing sufficient flexibility for resource allocation adaptability.
2Adaptability or versatility
If frequent switching between SBFD and non-SBFD symbols is allowed, then resource utilization flexibility is improved, but transmission interruptions increase
Solution Approach 1:
The patent changes the switching parameter by imposing a limit on the number of switching points between SBFD and non-SBFD symbols within a specified time period. This parameter modification reduces transmission interruptions by minimizing the frequency of mode transitions, thereby improving transmission continuity and reliability while maintaining adequate resource utilization flexibility.
3Device complexity
If switching points between SBFD and non-SBFD symbols are limited, then hardware complexity and interruptions are reduced, but resource utilization flexibility decreases
Solution Approach 1:
The patent applies partial action by implementing a moderate limit on switching points rather than completely restricting switching. The limit is set to a specific number (e.g., 1 or 2 switching points per slot) that is sufficient to reduce hardware complexity and interruptions while still allowing enough flexibility for resource allocation. This partial constraint achieves a balanced compromise between the conflicting requirements.
4Adaptability or versatility
If multiple switching points between SBFD and non-SBFD symbols are permitted, then transmission flexibility is improved, but latency increases
Solution Approach 1:
The patent changes the time-related parameter by limiting the number of switching points within a time period (slot or mini-slot). This parameter adjustment reduces latency by minimizing the number of transitions that cause interruptions, while still maintaining transmission flexibility through allowing a reasonable number of switching points (e.g., 1-2 per slot) for resource allocation adaptability.
Data Source
AI summary
Certain aspects of the present disclosure provide a method for wireless communications at a user equipment (UE). The UE may transmit an indication of a limit on a number of switching points (or transition points) between one or more first symbols configured for sub-band full duplex (SBFD) communications and one or more second symbols configured for non-SBFD communications, within a period of time. The UE may receive a configuration for the SBFD communications, which is in accordance with the indication.


