Communication Mode Selection Based on Traffic Type
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Solution Overview
Problem
Current wireless communication systems face challenges in selecting the optimal communication mode between MIMO diversity, MIMO multiplexing, and full duplex modes, particularly due to limitations in self-interference cancellation and concurrent usage of antennas and RF chains, which affect data transmission quality and range in LTE and other multi-access technologies.
Innovation Solution
A method and apparatus that determine the communication mode based on traffic type information, allowing for the selection between MIMO modes and full duplex communication by analyzing traffic types as best effort, latency sensitive, or no type, and adjusting channel gains to enable appropriate modes such as MIMO multiplexing or diversity, or full duplex, depending on the traffic requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If full duplex communication is used to reduce delay and jitter, then latency sensitive traffic performance is improved, but self-interference cancellation complexity increases
Solution Approach 1:
The system changes the communication mode parameter based on traffic type. For latency sensitive traffic, full duplex mode is selected to reduce delay and jitter. For other traffic types, MIMO modes are used. This parameter change resolves the contradiction by only incurring the self-interference cancellation complexity when it is actually beneficial for latency sensitive traffic.
Solution Approach 2:
The communication mode is dynamically selected based on real-time traffic type assessment. The system transitions between full duplex mode and MIMO modes depending on whether the traffic is latency sensitive or not. This dynamic adaptation allows the system to achieve low latency when needed while avoiding unnecessary complexity for other traffic types.
2Productivity
If MIMO spatial multiplexing is used to increase data rate, then productivity is improved, but full duplex communication cannot occur concurrently
Solution Approach 1:
The system dynamically selects between MIMO spatial multiplexing mode and full duplex mode based on traffic requirements. When high data rate is needed and traffic is not latency sensitive, MIMO spatial multiplexing is used. When low latency is critical, full duplex mode is selected. This dynamic mode selection resolves the contradiction by allowing the system to achieve high productivity when possible while maintaining the ability to switch to full duplex when latency becomes the priority.
Solution Approach 2:
The communication mode parameter is changed based on traffic type assessment. The system transitions between MIMO spatial multiplexing and full duplex modes, ensuring that high data rate is achieved for non-latency sensitive traffic while full duplex capability is available for latency sensitive traffic, thus resolving the contradiction between productivity and adaptability.
3Reliability
If MIMO diversity mode is used to improve reliability, then error rates are reduced, but data transmission speed decreases
Solution Approach 1:
The system changes the communication mode parameter based on traffic type and channel conditions. MIMO diversity mode is selected when reliability is the priority (e.g., for error-prone channels or critical data). MIMO spatial multiplexing or full duplex modes are selected when speed is more important and channel conditions are good. This parameter change resolves the contradiction by allowing the system to optimize for reliability when needed while achieving higher speeds when conditions permit.
Data Source
AI summary
A method, an apparatus, and a computer program product for wireless communication are provided in connection with selection of a communication mode based on traffic type information. In one example, a network entity (e.g., a WiFi router, Picocell, Fentocell, an eNB, etc.) is equipped to obtain traffic type information for content to be transmitted by a network entity, determine a communication mode to use for transmission of the content based on the traffic type information, and transmit the content using the determined communication mode. In an aspect, the traffic type information may indicate that the content is a best effort traffic type, a latency sensitive traffic type, or no traffic type is available.