Terminal Device Feedback for Wireless Channel Reception
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Solution Overview
Problem
Network devices cannot effectively configure scheduling information for terminal devices due to unknown reception effects, leading to poor demodulation performance and low transmission efficiency in wireless communication systems.
Innovation Solution
A method where terminal devices send feedback information to network devices about channel reception results, allowing the network devices to adjust modulation and coding schemes and transmission resources based on specific thresholds and conditions, enabling better scheduling and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network device sends broadcast or multicast channels to terminal devices without receiving feedback, then the transmission can proceed without additional signaling overhead, but the network device cannot know reception effects and cannot effectively configure scheduling information, resulting in poor demodulation performance and low transmission efficiency
Solution Approach 1:
The patent implements a feedback mechanism where terminal devices send target information to the network device indicating reception results of broadcast or multicast channels. This feedback enables the network device to adjust scheduling information such as MCS level and transmission power based on actual reception conditions, thereby improving demodulation performance and transmission efficiency while maintaining controlled signaling overhead through selective feedback transmission based on prescribed conditions
2Productivity
If the terminal device sends feedback information about channel reception results, then the network device can make informed scheduling decisions and improve transmission efficiency, but the system requires additional signaling resources and increased communication overhead
Solution Approach 1:
The patent applies local quality by implementing selective feedback transmission based on prescribed conditions. Terminal devices transmit target information only when specific conditions are met (e.g., when reception quality falls below a threshold or when there are significant changes in channel conditions). This approach ensures that feedback is provided locally where needed, improving transmission efficiency for affected terminal devices while minimizing overall signaling overhead in the system
Solution Approach 2:
The patent implements partial action by having terminal devices send feedback information selectively rather than continuously. The feedback is transmitted partially - only when reception results indicate a need for scheduling adjustment - thereby achieving the benefit of improved transmission efficiency without the excessive overhead of constant feedback transmission from all terminal devices
Data Source
AI summary
A method for transmitting information, a terminal device, and a network device are provided. The method includes: receiving, by a terminal device, a target channel sent by a network device, wherein the target channel includes a broadcast channel or a multicast channel; determining, by the terminal device, to send target information to the network device when a reception result of the target channel meets a prescribed condition; determining, by the terminal device, a target transmission resource for transmitting the target information in at least one transmission resource; and sending, by the terminal device, the target information to the network device on the target transmission resource, wherein the target information sent on the target transmission resource is used for indicating the reception result of the target channel to the network device.