Uplink Resource Indication for Multi-Service Wireless Systems
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Solution Overview
Problem
Current wireless communication systems lack effective methods to indicate uplink transmission resources for various services, particularly in 4G and 5G networks, leading to inefficiencies and complexities in managing resources for services with different priority levels and transmission requirements.
Innovation Solution
The method involves transmitting resource indication information from a wireless communication node to a user equipment (UE), which includes determining resource sets for uplink transmissions related to different types of services, allowing the UE to adjust its transmission policies, such as stopping, canceling, or modifying power levels based on overlapping resources, to ensure high-reliability and low-latency services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If preemption indication is used for downlink service transmission, then resource allocation efficiency for high-priority services is improved, but no effective indication method exists for uplink transmissions of various service types
Solution Approach 1:
The patent creates a unified preemption indication mechanism that serves multiple uplink transmission types (grant-based and grant-free) and multiple service types (eMBB and URLLC) through a single framework. The base station generates preemption indication information that can indicate resources for different service types, making the system universally applicable rather than requiring separate mechanisms for each transmission type.
Solution Approach 2:
The patent segments the uplink transmission resources into different service types (eMBB and URLLC) and applies differentiated indication strategies. For grant-based transmissions, the base station receives uplink grants and determines preemption; for grant-free transmissions, the base station monitors resource usage and generates appropriate indications. This segmentation allows tailored handling of each transmission type while maintaining overall system coherence.
2Loss of time
If grant-free uplink transmission is allowed, then transmission latency is reduced, but the base station cannot predetermine which candidate resource the uplink transmission occurs on
Solution Approach 1:
The patent implements a feedback mechanism where the base station monitors grant-free uplink transmissions and generates preemption indication information based on actual resource usage observations. The base station receives feedback about which grant-free resources are being used and uses this information to create accurate preemption indications, turning the previously unpredictable grant-free transmissions into manageable resources through continuous monitoring and indication generation.
Solution Approach 2:
The patent applies preliminary action by having the base station pre-configure grant-free resources and establish the preemption indication framework before actual transmissions occur. The base station prepares the indication mechanism in advance, so when grant-free transmissions happen, the system can quickly generate and communicate preemption indications without delay, maintaining the low-latency benefit while adding control capability.
3Adaptability or versatility
If multiple transmission types coexist in the same carrier, then service versatility is improved, but complexity of resolution mechanisms increases
Solution Approach 1:
The patent merges the resolution mechanisms for different transmission types into a unified preemption indication framework. Instead of creating separate complex mechanisms for grant-based and grant-free transmissions, the patent combines them into a single indication system where the base station generates preemption indication information that applies to both types. This merging reduces overall system complexity while maintaining the ability to handle multiple transmission types.
Solution Approach 2:
The patent creates a universal preemption indication mechanism that handles multiple transmission types (grant-based and grant-free) and service types (eMBB and URLLC) through a single framework. The base station receives uplink transmissions of various types and generates unified preemption indications, making the system universally applicable rather than requiring separate mechanisms for each transmission type.
Data Source
AI summary
Methods, apparatuses and systems for indicating resources for uplink transmissions related to various services in a wireless communication. In one embodiment, a method performed by a wireless communication node includes: transmitting indication information to a first wireless communication device, wherein the indication information indicates to the first wireless communication device a resource set of resources configured for uplink transmissions related to at least one type of service by at least one second wireless communication device.