Multicast Transmission Resource Sets for Downlink Type Detection
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently distinguishing between multicast and unicast transmissions, particularly in configuring resource sets for downlink control signals, leading to inefficiencies in data scheduling and resource utilization.
Innovation Solution
The system employs dedicated signaling and specific radio network temporary identifiers to configure distinct resource sets for multicast and unicast transmissions, enabling accurate identification of new and retransmission types through downlink control signals, using PDCCH and PDSCH channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If resource sets are configured for downlink control signals without distinct identification mechanisms, then device complexity is reduced, but transmission type identification accuracy deteriorates
Solution Approach 1:
The patent divides the resource set configuration into multiple distinct segments: first resource sets for multicast new transmissions, second resource sets for multicast retransmissions, third resource sets for unicast new transmissions, and fourth resource sets for unicast retransmissions. This segmentation enables accurate identification of transmission types by determining which resource set the downlink control signal belongs to, resolving the contradiction between identification accuracy and configuration complexity.
Solution Approach 2:
The patent applies local quality by assigning specific properties to different resource sets: each resource set is associated with particular transmission types and configured with specific parameters. The wireless communication device determines transmission type based on the local characteristics of the resource set containing the downlink control signal, enabling precise identification without requiring complex global analysis.
2Reliability
If multiple resource sets are configured for different transmission types, then transmission type identification accuracy is improved, but device complexity increases
Solution Approach 1:
The patent segments resource sets into four distinct groups, each dedicated to a specific transmission type combination (multicast new, multicast retransmission, unicast new, unicast retransmission). This segmentation improves reliability by ensuring correct transmission type identification while managing complexity through structured organization of resource sets with clear associations to transmission types.
Solution Approach 2:
The wireless communication device uses feedback mechanisms to determine which resource set a downlink control signal belongs to, based on configured associations between resource sets and transmission types. This feedback loop enables reliable transmission type identification while maintaining manageable device complexity through systematic resource set management.
3Productivity
If resource sets are properly configured for multicast and unicast transmissions, then data transmission efficiency is improved, but system configuration complexity increases
Solution Approach 1:
The patent implements segmentation of resource sets into four distinct categories, each optimized for specific transmission types. This segmentation improves data transmission efficiency by enabling accurate transmission type identification through resource set determination, while the structured segmentation approach helps manage system configuration complexity through organized resource allocation.
Solution Approach 2:
The patent applies local quality by configuring each resource set with specific properties and associations tailored to its intended transmission type. This enables efficient data transmission through precise resource matching while managing configuration complexity through localized resource set characteristics rather than requiring complex global configuration management.
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AI summary
A system and method for receiving downlink control signals are disclosed herein. In one embodiment, a method performed by a wireless communication device includes receiving, by a wireless communication device from a wireless communication node, a downlink control signal, determining, by the wireless communication device, to which of a plurality of resource sets the downlink control signal belongs, receiving, by the wireless communication device, a downlink data signal scheduled by the downlink control signal, and determining, by the wireless communication device based on the determined resource set, that the downlink data signal is one of:a new multicast transmission, a multicast retransmission, a new unicast transmission, and a unicast retransmission.