Terminal Capability Reporting for Flexible Carrier Aggregation Scheduling
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Solution Overview
Problem
Current uplink and downlink transmission resources in carrier aggregation scenarios are not flexibly configured and scheduled based on the terminal device's capabilities, leading to inefficiencies in transmission scheduling.
Innovation Solution
The terminal device reports its downlink transmission capabilities, including supported band combinations and bandwidth parts, allowing the network device to perform more flexible scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the terminal device supports high downlink carrier aggregation capability to enable uplink carrier aggregation, then the uplink transmission capability is improved, but the device complexity and implementation costs increase
Solution Approach 1:
The patent segments the downlink and uplink carrier aggregation capabilities independently. The terminal device can be configured with different numbers of downlink carriers and uplink carriers, rather than requiring equal numbers. This segmentation allows the uplink transmission capability to be enhanced without proportionally increasing downlink carrier aggregation capability, thereby reducing device complexity while maintaining uplink productivity.
2Ease of operation
If the network device configures the same carrier bandwidth for uplink and downlink transmission, then the configuration simplicity is maintained, but the transmission scheduling flexibility is reduced
Solution Approach 1:
The patent applies local quality by allowing different bandwidth configurations for uplink and downlink transmissions on the same carrier. Specifically, the network device can configure a first bandwidth for uplink transmission and a second bandwidth for downlink transmission, where these bandwidths can be different. This enables optimized resource allocation tailored to specific transmission directions while maintaining overall configuration manageability.
Data Source
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AI summary
A communication method and apparatus are provided, which relate to the field of wireless communication technologies. The method includes: A network device sends first information to a terminal device, where the first information is used to query for capability information of the terminal device. The terminal device sends the capability information of the terminal device to the network device based on the first information, where the capability information indicates a first band combination supported by the terminal device, the first band combination includes M bands, the capability information includes second information, the second information indicates N downlink band groups in the first band combination, and each of the N downlink band groups includes at least one of the M bands. According to the method, the terminal device can report, to the network device, a downlink transmission capability that can be supported by the terminal device, thereby improving flexibility of performing transmission scheduling on the terminal device.