Radio Network DCI Index Mapping for Faster Scheduling
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Solution Overview
Problem
Existing radio telecommunications networks face inefficiencies in scheduling data communication due to limitations in processing downlink control information (DCI) formats, particularly in converting indices to scheduling sequences for uplink and downlink transmissions.
Innovation Solution
Implementing a look-up table at higher layers to convert DCI indices to scheduling sequences, allowing for more efficient data communication by using a two-hop process involving layer 3 and layer 2 signaling to configure mobile equipment for data communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a traditional DCI format processing method is used, then the processing is simpler, but the scheduling efficiency is lower
Solution Approach 1:
The patent pre-generates multiple scheduling sequences and stores them in a lookup table before actual scheduling operations. When scheduling is needed, the system only needs to retrieve and select from pre-computed sequences rather than computing them in real-time, thus improving scheduling efficiency while keeping the actual processing simple.
Solution Approach 2:
The patent creates multiple copies of scheduling sequences in a lookup table, each representing different scheduling scenarios. Instead of computing scheduling information from scratch each time, the system copies and selects appropriate pre-defined sequences, improving efficiency without requiring complex real-time computation.
2Speed
If scheduling sequences are pre-defined and stored in a lookup table, then the conversion speed is faster, but the memory requirement increases
Solution Approach 1:
The patent divides the scheduling information into multiple segments or sequences, each stored separately in the lookup table. This segmentation allows the system to store only essential scheduling patterns rather than all possible scheduling information, reducing memory requirements while maintaining fast conversion speed through selective retrieval.
Solution Approach 2:
The patent uses parameter changes to generate different scheduling sequences from a base template. By varying parameters such as time offsets, frequency resources, and resource block allocations, the system can create multiple scheduling sequences without storing completely independent data sets, thus reducing memory usage while maintaining conversion speed.
3Adaptability or versatility
If a two-hop process with layer 3 and layer 2 signaling is used, then the configuration flexibility is improved, but the signaling overhead increases
Solution Approach 1:
The patent performs preliminary configuration of DCI formats and scheduling parameters through layer 3 signaling before actual scheduling operations. This preliminary action establishes the framework for scheduling, allowing layer 2 to operate with predefined parameters, thus reducing the signaling overhead required during actual scheduling while maintaining configuration flexibility.
Solution Approach 2:
The patent introduces the lookup table as an intermediary between layer 3 configuration and layer 2 scheduling operations. The lookup table stores pre-computed scheduling sequences that translate high-level layer 3 configurations into actionable layer 2 scheduling decisions, reducing the need for extensive signaling between layers while maintaining flexibility.
Data Source
AI summary
A mobile equipment comprising means for: receiving via signalling at a higher layer than a physical layer, a downlink control information (DCI) format; receiving via signalling at a higher layer than the physical layer, information defining a look-up table for converting a received index to a scheduling sequence representing, based on the DCI format, scheduling information; receiving a DCI sequence at the physical layer, the DCI sequence comprising an index for indexing one of a plurality of predetermined different scheduling sequences; using the look-up table to convert the received index to a scheduling sequence representing, based on the DCI format, scheduling information; and using the DCI format to obtain the scheduling information, for configuring the mobile equipment for data communication, from the scheduling sequence representing, based on the DCI format, the scheduling information. A network node comprising means for: sending to a user equipment (UE), via signalling at a higher layer than a physical layer: a downlink control information (DCI) format, that enables the UE to obtain scheduling information, for scheduling the UE for data communication, from a scheduling sequence representing, based on the DCI format, the scheduling information; and information defining a look-up table for converting an index to a scheduling sequence representing, based on the DCI format, the scheduling information; and sending to the user equipment a DCI sequence at the physical layer, the DCI sequence comprising an index indexing one of a plurality of predetermined different scheduling sequences.