Frequency Multiplexed Data Block Transmission for Multi-TRP Wireless Systems
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently transmitting data blocks across multiple transmission points, particularly in ensuring reliable and robust data transmission while maintaining low latency.
Innovation Solution
The method involves transmitting multiple data blocks frequency multiplexed in a time duration, utilizing spatial information and a redundancy version sequence. Each data block carries the same data varied based on a redundancy version and occupies the same number of virtual resource blocks in the frequency domain. This is scheduled by a control channel that indicates the redundancy version sequence, which is configured by high-layer signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple data blocks are transmitted from multiple TRPs using traditional methods, then transmission reliability is improved, but transmission latency increases and resource allocation efficiency deteriorates
Solution Approach 1:
The patent segments the data transmission into multiple data blocks that are frequency multiplexed within a single time duration. Each data block is transmitted from different TRPs simultaneously, allowing the receiver to combine information from multiple sources without waiting for sequential transmissions, thereby reducing latency while maintaining reliability through diversity.
Solution Approach 2:
The patent introduces frequency domain multiplexing as an additional dimension to traditional time-division or sequential transmission methods. By transmitting multiple data blocks across different frequency resources simultaneously in the same time slot, the system achieves parallel transmission from multiple TRPs, reducing latency while maintaining reliability through spatial diversity.
2Reliability
If multiple data blocks are transmitted from multiple TRPs, then transmission robustness is improved, but resource allocation efficiency deteriorates
Solution Approach 1:
The patent employs a unified control channel that serves multiple functions: it schedules multiple data blocks, indicates redundancy version sequences, and manages resources for transmissions from multiple TRPs simultaneously. This multi-functional approach consolidates control overhead and improves resource allocation efficiency while maintaining robustness through multi-TRP transmission.
Solution Approach 2:
The patent utilizes redundancy version sequences as a key parameter to manage multiple data blocks. By varying the redundancy versions across different data blocks transmitted from multiple TRPs, the system optimizes resource allocation and ensures robust transmission. The control channel dynamically adjusts these parameters to balance reliability and efficiency.
3Reliability
If redundancy versions are used for multiple data blocks, then data transmission reliability is improved, but system complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the control channel indicates the redundancy version sequences used for multiple data blocks. This feedback information allows the receiver to properly decode and combine the data blocks from different TRPs, managing the complexity through structured information exchange and coordinated transmission parameters.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for data block transmissions. One method includes transmitting a data blocks frequency multiplexed in a time duration to a device, wherein: the data blocks are transmitted based on spatial information and a redundancy version sequence; each data block of the data blocks carries the same data varied based on a redundancy version indicated by the redundancy version sequence and occupies a same number of virtual resource blocks in a frequency domain; the data blocks are scheduled by a control channel, wherein the control channel is used to transmit information that indicates the redundancy version sequence of redundancy version sequences configured by high layer signaling; the spatial information is indicated in the control channel or is configured by high layer signaling; and a total number of data blocks of the data blocks is configured by high layer signaling.