Wireless Communication Time Domain Resource Frequency Segmentation
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Solution Overview
Problem
In Time Division Duplex (TDD) systems, the uplink-downlink configuration limits resource utilization efficiency as each slot or symbol is used only for uplink or downlink transmission, preventing simultaneous data reception and transmission within a single time unit.
Innovation Solution
A wireless communication method and apparatus that utilize first and second configuration information to indicate a first time domain resource with different frequency domain parts, allowing for varying transmission directions within a single time unit, enabling simultaneous uplink and downlink transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If uplink-downlink configuration is used to configure transmission direction for each slot/symbol, then transmission direction control is simplified, but resource utilization efficiency deteriorates
Solution Approach 1:
The time unit is segmented into multiple frequency domain parts, where each frequency domain part can have independent transmission direction configuration. This allows different portions of the frequency spectrum within the same time unit to operate in different directions (uplink/downlink), thereby improving resource utilization while maintaining manageable configuration complexity through structured segmentation.
Solution Approach 2:
Different frequency domain parts within the same time unit are assigned different transmission directions based on local requirements. This local quality approach enables each frequency domain part to be optimized independently for its specific function (uplink or downlink), improving overall resource utilization while the configuration mechanism maintains systematic control.
2Ease of operation
If one slot or symbol is used only for uplink transmission or downlink transmission, then transmission direction management is simplified, but simultaneous data reception and transmission capability deteriorates
Solution Approach 1:
The patent introduces frequency domain dimensionality to the traditional time-domain-only transmission direction control. By allowing different frequency domain parts within the same time unit to have different transmission directions, the system gains the capability for simultaneous uplink and downlink transmissions without complicating time-domain management, thus enhancing adaptability while maintaining ease of operation.
Solution Approach 2:
The frequency domain is segmented into multiple parts within each time unit, enabling independent transmission direction assignment for each segment. This segmentation allows the system to achieve full-duplex capability (simultaneous reception and transmission) by designating specific frequency portions for uplink and others for downlink, without requiring complex time-division switching.
Data Source
AI summary
Provided is a wireless communication method, including that, a terminal device receives first configuration information transmitted by a network device. The first configuration information is used to indicate a first time domain resource, and the first time domain resource includes one or more time units, each time unit including a first frequency domain part in frequency domain. For any one time unit in the first time domain resource, a transmission direction of the first frequency domain part is different from a transmission direction of the time unit configured by second configuration information, the second configuration information being used to configure a transmission direction for each of time units in one period.