Uplink Band Switching Gaps for Multi-Band Wireless Transmission
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in signal transmission and reception due to limitations in uplink transmission switching between multiple bands, particularly in scenarios involving UEs with limited transmission chains, leading to suboptimal throughput and spectrum utilization.
Innovation Solution
A method and apparatus for configuring uplink bands with switching gaps to optimize UL transmission by omitting UL transmission during switching periods, allowing efficient switching between multiple bands using RRC signaling and UE capability reports to manage UL switching gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If uplink transmission switching is implemented between multiple bands, then spectrum utilization is improved, but transmission reliability deteriorates due to switching gaps causing omitted UL transmissions
Solution Approach 1:
The network device pre-configures switching gap information to the terminal device before band switching occurs. This allows the terminal device to know in advance when switching gaps will occur and proactively suspend uplink transmissions during these periods, preventing transmission failures while enabling seamless band switching for improved spectrum utilization
Solution Approach 2:
The network device receives feedback information from the terminal device regarding uplink transmission status. Based on this feedback, the network device dynamically adjusts band switching operations, ensuring that switching operations do not conflict with ongoing transmissions and maintaining transmission reliability while achieving spectrum utilization improvements
2Productivity
If band switching is performed frequently to optimize throughput, then data rate is improved, but transmission stability worsens due to increased switching gaps
Solution Approach 1:
The system dynamically adjusts band switching operations based on real-time transmission conditions. The network device determines switching timing and target bands adaptively, allowing frequent switching when conditions permit (improving throughput) while automatically reducing switching frequency when stability is compromised, achieving both objectives through dynamic optimization
Solution Approach 2:
The system changes operational parameters including switching gap duration, switching timing, and target band selection based on current transmission conditions. By adjusting these parameters dynamically, the system optimizes throughput when high data rates are needed while maintaining transmission stability when conditions require more conservative operations
Data Source
AI summary
A method and a device for transmitting/receiving signals in a wireless communication system, disclosed in the present specification, allow uplink switching to be performed between three or more bands. For each of all combinations of bands that can be configured, a specific uplink band to which a switching gap is to be applied may be set.