Serving Cell Switching Gap Control for Throughput Stability
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Solution Overview
Problem
In radio communication systems, the switching of serving cells with different Physical Cell Identities (PCIs) through L1/L2 inter-cell mobility can lead to a degradation of communication throughput unless appropriate cell configuration is performed.
Innovation Solution
A terminal and base station are designed to include a receiving section for configuring a switching gap and a control section that restricts downlink reception and uplink transmission during the switching gap, ensuring appropriate cell configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If L1/L2 inter-cell mobility is performed to switch serving cells with different PCIs, then cell switching capability is improved, but communication throughput deteriorates
Solution Approach 1:
The patent applies preliminary action by configuring a switching gap parameter in advance before cell switching occurs. The terminal receives configuration information including the switching gap value, which is used to determine the timing for restricting downlink reception and uplink transmission. This pre-configuration allows the terminal to properly manage the transition period between cells, preventing throughput degradation while enabling L1/L2 inter-cell mobility.
2Reliability
If switching gap is introduced to manage cell switching, then cell configuration is improved, but transmission time is reduced
Solution Approach 1:
The patent applies dynamics by making the switching gap configurable and adaptable. The switching gap value is not fixed but can be adjusted based on terminal capability and network conditions. The terminal determines whether to apply the switching gap restriction based on received configuration information, allowing dynamic adjustment of the time period for restricting downlink reception and uplink transmission to balance reliability and time loss.
Data Source
AI summary
A terminal according to one aspect of the present disclosure includes: a receiving section that receives a configuration of a switching gap to be applied at time of switch of a serving cell; and a control section that restricts at least one of downlink reception and uplink transmission, in a period of the switching gap. According to one aspect of the present disclosure, it is possible to appropriately perform configuration related to cells.