Carrier Scheduling for Inter-Band Non-Contiguous Aggregation
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Solution Overview
Problem
In inter-band non-contiguous carrier aggregation, existing technologies fail to prevent mutual interference between carriers with opposite information transmission directions, leading to decreased communication quality and potential drop calls due to insufficient filtering capabilities.
Innovation Solution
A method and device for carrier scheduling that determines an uplink target carrier and a downlink target carrier for a mobile terminal and schedules them in different time domains based on a predetermined anti-interference strategy, utilizing capability information to assess the mobile terminal's support for simultaneous information transmissions in opposite directions across frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If different timeslot ratio of uplink and downlink is configured for different frequency band in inter-band non-contiguous carrier aggregation, then network resource utilization is improved and throughput efficiency is improved, but mutual interference between carriers with opposite information transmission directions occurs leading to decreased communication quality
Solution Approach 1:
The base station queries the mobile terminal's capability information about simultaneous information transmission support before scheduling carriers. This preliminary assessment allows the base station to pre-determine whether to schedule uplink and downlink carriers in the same or different time domains, preventing interference before it occurs.
Solution Approach 2:
The scheduling method dynamically adjusts the time domain allocation based on the mobile terminal's capability information. If the terminal does not support simultaneous opposite-direction transmissions, the base station schedules carriers in different time domains; otherwise, same-time domain scheduling is used to maximize efficiency.
2Reliability
If capability information query and time domain scheduling adjustment are implemented, then mutual interference is avoided and communication quality is improved, but scheduling complexity increases
Solution Approach 1:
The mobile terminal provides its own capability information about simultaneous information transmission support, allowing the base station to make informed scheduling decisions without complex analysis. The terminal essentially self-describes its limitations, simplifying the base station's scheduling task.
Data Source
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AI summary
Disclosed are a carrier scheduling method, apparatus and related device, used in the scenario of discontinuous carrier aggregation in different frequency bands, avoiding the interference between carriers bearing information with reverse transmission direction, and ensuring the communication quality of the mobile terminals. The carrier scheduling method includes: a base station determining an uplink target carrier and a downlink target carrier to be scheduled to a mobile terminal; the base station scheduling the uplink target carrier and the downlink target carriers determined for the mobile terminal according to a preset anti-interference scheduling policy when it is judged that synchronous information transmission with reverse direction is not supported by the mobile terminal on the determined uplink target carrier and downlink target carrier.