Wireless Signal Slot-Group Feedback for Shared-Resource Channels
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently transmitting and receiving wireless signals, particularly in environments with shared resources and varying channel conditions, which can lead to inefficiencies and suboptimal performance.
Innovation Solution
A method and apparatus for wireless signal transmission and reception that involves receiving data in distinct slot groups, processing downlink control information for acknowledgement/negative acknowledgement feedback, and transmitting uplink control information accordingly, with support for autonomous driving vehicles and unlicensed bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data is received in multiple slot groups with different scheduling information, then the system can handle varying channel conditions and shared resources, but the complexity of processing downlink control information and managing acknowledgement feedback increases
Solution Approach 1:
The patent divides the reception process into distinct slot groups (first slot group, second slot group, etc.), each handling specific scheduling information independently. This segmentation allows the system to manage varying channel conditions by processing each slot group's data separately, reducing the complexity of handling multiple simultaneous control information streams.
Solution Approach 2:
The patent implements dynamic slot group configuration where the number of slot groups and their specific assignments can vary based on channel conditions and scheduling requirements. This dynamic adaptation allows the system to optimize performance for different scenarios while managing complexity through flexible rather than fixed processing architecture.
2Reliability
If acknowledgement/negative acknowledgement feedback is required for specific slot groups, then the reliability of data transmission is improved, but the time required for transmitting uplink control information increases
Solution Approach 1:
The patent incorporates downlink control information that specifies which slot groups require acknowledgement feedback in advance. By pre-identifying the required feedback slots through the downlink control information structure, the system can prepare and transmit uplink control information more efficiently, reducing the time penalty while maintaining reliable feedback for critical data transmissions.
Solution Approach 2:
The patent implements a feedback mechanism where uplink control information carrying acknowledgement/negative acknowledgement is transmitted for specific slot groups indicated by downlink control information. This targeted feedback approach ensures reliability for important data while minimizing overall feedback time by only requiring acknowledgements where necessary, rather than for all slot groups uniformly.
3Adaptability or versatility
If the system supports unlicensed bands and autonomous driving vehicles, then the versatility and adaptability of the wireless communication system is enhanced, but the complexity of the apparatus increases
Solution Approach 1:
The patent designs the wireless communication apparatus with universal functionality that can operate across multiple frequency bands including licensed and unlicensed bands. The same basic apparatus structure handles different service types (e.g., autonomous driving vehicle communication, general wireless communication) through configurable parameters and protocols, thereby enhancing versatility without proportionally increasing hardware complexity.
Data Source
AI summary
The present invention relates to a wireless communication system and, more particularly, to a method and an apparatus for same, the method comprising the steps of: receiving one or more first data in a first slot group; receiving one or more second data in a second slot group, wherein the first slot group and the second slot group are different from each other; receiving downlink control information including first information relating to a slot group for which A/N feedback is required; and transmitting, through an uplink control channel, A/N information relating to a slot group, indicated by the first information, among the first slot group and the second slot group.