Multiple Component Carrier Scheduling for Lower Wireless Delay
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Solution Overview
Problem
Existing scheduling mechanisms in wireless cellular access networks limit scheduling flexibility, leading to increased scheduling delay and reduced resource utilization efficiency.
Innovation Solution
A mechanism that allows multiple Component Carriers (CCs) to schedule channels or signals on themselves or other CCs, enabling flexible scheduling across multiple CCs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional scheduling mechanisms (self-scheduling, cross-carrier scheduling, or SCell scheduling PCell) are used, then the system structure is simple and easy to implement, but the scheduling flexibility is limited
Solution Approach 1:
The patent enables each component carrier to serve multiple scheduling roles: it can schedule channels/signals on itself (self-scheduling), on other component carriers (cross-carrier scheduling), and can be scheduled by other component carriers. This multi-functional capability resolves the contradiction by allowing a single unified scheduling mechanism to replace the need for multiple separate scheduling mechanisms, thereby improving scheduling flexibility without proportionally increasing system complexity.
Solution Approach 2:
The patent introduces dynamic scheduling configuration where the scheduling behavior of each component carrier can be flexibly configured and adjusted. The system can dynamically determine which component carrier schedules which channel or signal based on current network conditions and requirements, rather than being fixed to a single scheduling mode. This dynamic approach enables the system to adapt to different scenarios, resolving the contradiction between flexibility and complexity.
2Loss of time
If traditional scheduling mechanisms are used, then the implementation is straightforward, but the scheduling delay increases
Solution Approach 1:
The patent enables preliminary scheduling actions by allowing component carriers to be pre-configured with scheduling capabilities for multiple targets. The system can prepare scheduling commands in advance on appropriate component carriers, reducing the time required to allocate resources when data transmission needs to occur. This preliminary preparation of scheduling actions directly addresses the scheduling delay issue while maintaining the flexibility benefits.
3Productivity
If traditional scheduling mechanisms are used, then the system is easier to manage, but the resource utilization efficiency decreases
Solution Approach 1:
The patent merges the functionality of multiple separate scheduling mechanisms (self-scheduling, cross-carrier scheduling, SCell scheduling PCell) into a single unified mechanism where component carriers can perform all scheduling functions. This consolidation eliminates the need to manage multiple separate scheduling systems, and while the individual carrier configuration is more flexible, the overall management complexity is reduced by having a unified approach. The merging enables better resource utilization by allowing any carrier to schedule any channel or signal on any carrier, optimizing resource allocation across the entire system.
Data Source
AI summary
A mechanism for scheduling multiple component carriers within the wireless cellular access network is disclosed, including using multiple Component Carriers (CCs) to schedule channel or signal on themselves or other CCs to provide a flexible mechanism for scheduling channel or signal across the multiple CCs. A method may include configuring M CCs for a wireless terminal device, where M is an integer number larger than 1. A first scheduling command transmitted on an ith CC of the M CCs schedules channel or signal on the ith CC or on at least one of Ni other CCs of the M CCs, where Ni is an integer number larger than 0 and smaller than M, and where i is an integer number and 1≤i≤M, wherein a channel or signal on the ith CC is scheduled by a second scheduling command transmitted on the ith CC or on at least one of Pi other CCs of the M CCs, where Pi is an integer larger than 0 and smaller than M, and wherein each scheduling command schedules channel or signal on one or more CCs of the M CCs. By this, scheduling flexibility is increased, resulting in reducing scheduling delay and increasing resource utilization efficiency.