Wireless Combo Chip Buffer Management for TDM Switching
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Solution Overview
Problem
Existing wireless communication systems with combo chips face performance deterioration when switching between different communication methods, as they fail to distinguish between disconnection and congestion, leading to poor communication performance due to the use of time division multiplexing (TDM) and transport control protocol (TCP) limitations.
Innovation Solution
An electronic apparatus with a processor that controls communication methods by sharing information on time slot occupancy between modules, transmitting notification and resuming information to maintain buffer sizes and adjust communication methods, thereby enhancing performance without resetting transmission buffers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If time division multiplexing (TDM) is used to support multiple wireless communication methods, then multiple communication protocols can coexist, but communication performance deteriorates due to inability to distinguish disconnection from congestion
Solution Approach 1:
The patent introduces an intermediary mechanism (separate buffer for TDM packets, notification information transmission) that mediates between the TDM switching requirement and TCP protocol expectations. The intermediary buffer holds packets during communication method switching, preventing TCP from misinterpreting temporary unavailability as congestion, thus resolving the performance deterioration while maintaining multi-protocol support
Solution Approach 2:
The patent applies preliminary action by transmitting notification information to the other apparatus before or during the communication method switch. This advance notification allows the remote end to pause transmission proactively, preventing packet loss and avoiding the need for retransmission, thereby maintaining communication reliability during TDM-based method switching
2Reliability
If multiple wireless communication methods are used simultaneously to overcome TCP limitations, then disconnection and congestion can be distinguished, but wireless communication performance seriously deteriorates
Solution Approach 1:
The patent segments the communication buffer into separate TDM buffer and normal buffer, allowing independent management of packets during method switching. This segmentation enables the system to track which packets are affected by TDM switching versus actual communication failures, maintaining the ability to distinguish disconnection from congestion while avoiding performance deterioration through coordinated buffer management
3Device complexity
If communication methods are switched alternately between first and second methods, then time slot occupancy can be managed, but throughput deteriorates due to transmission halts and waiting
Solution Approach 1:
The patent implements feedback by transmitting notification information from the apparatus performing method switching to the other apparatus. This feedback mechanism allows the remote end to adjust its transmission behavior accordingly, pausing during method switches and resuming when ready, thereby maintaining higher effective throughput by avoiding unnecessary retransmissions and reducing waiting time
Data Source
AI summary
An electronic apparatus, a wireless communication method, and a non-transitory computer readable recording medium are provided. The electronic apparatus includes a communicator configured to transmit and receive packets using a first communication method and a second communication method, the first communication method and the second communication method being different from each other, and a processor configured to control the communicator to perform wireless communication in the first communication method and the second communication method alternately, and, in response to there being a need to switch to the second communication method in the middle of using the first communication method, control the communicator to transmit notification information to another apparatus of the first communication method to halt transmission of packets and wait.