Shared Channel Resource Signaling for Dynamic TDD Wireless Links
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Solution Overview
Problem
Existing mobile communication systems face resource shortages and high-speed service demands, necessitating improved methods for transmitting and receiving shared channels in wireless communication systems.
Innovation Solution
A method and device for efficiently determining resources for shared channel transmission in wireless communication systems, utilizing techniques such as beamforming, MIMO, and advanced coding modulations, with specific applications in IoT networks and 5G technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic TDD is used to vary the number of OFDM symbols according to data traffic directions, then spectral efficiency is improved, but system complexity increases due to the need for slot configuration management and signaling
Solution Approach 1:
The patent implements dynamic TDD by allowing the base station to vary the number of downlink and uplink OFDM symbols in each slot according to real-time data traffic conditions. The slot configuration is dynamically adjusted through signaling to the terminal, enabling the system to adapt symbol allocation between downlink and uplink based on traffic demands, thus improving spectral efficiency while managing complexity through structured configuration signaling.
2Length of stationary object
If beamforming and massive MIMO are used to alleviate path loss in mmWave band, then transmission distance is improved, but device complexity increases due to the need for multiple antennas and beam management
Solution Approach 1:
The patent combines beamforming and massive MIMO technologies to address path loss in the mmWave band. By merging these techniques, the system achieves extended transmission distance through focused beam energy and spatial multiplexing, while the complexity is managed through integrated base station and terminal designs that coordinate multiple antenna elements and beam management procedures.
Solution Approach 2:
The patent utilizes spatial dimensionality through massive MIMO by deploying multiple antenna elements in three-dimensional space. This dimensional expansion allows the system to create multiple spatial channels and beams, overcoming mmWave path loss through directional transmission and providing spatial diversity to extend effective transmission distance.
3Speed
If advanced coding modulation schemes like FQAM and SWSC are used, then data transfer rate is improved, but processing complexity increases
Solution Approach 1:
The patent employs advanced coding modulation schemes including hybrid FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC). These schemes change the modulation parameters and coding structures to achieve higher data transfer rates. The processing complexity is managed through optimized algorithms and integrated processing in the base station and terminal equipment.
Data Source
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AI summary
In a method for transmitting and receiving a shared channel in a wireless communication system, the method performed by a terminal is characterized by comprising: a step for receiving, from a base station, first resource information for transmitting and receiving a shared channel; and a step for receiving, from the base station, the shared channel on a first resource determined on the basis of the first resource information or transmitting, to the base station, the shared channel on the first resource.