Wireless Code Block Group Transmission Subset Selection
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Solution Overview
Problem
Current wireless communication standards face inefficiencies in resource utilization and increased data traffic due to the need to transmit entire sets of code block groups (CBGs) in initial data transmissions, leading to unnecessary resource depletion and overhead in cases where not all CBGs are decoded properly.
Innovation Solution
Implementing a method where a subset of CBGs, comprising a transport block, is transmitted initially, with the transmitting device providing an identification of the subset to the receiving device, allowing for reduced resource usage and lower communication overhead by using HARQ-ACK feedback or uplink control information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire set of CBGs is transmitted in the initial data transmission, then the receiving device can potentially decode all data, but transmission resources are depleted unnecessarily and communication overhead increases when not all CBGs need to be sent
Solution Approach 1:
The transport block is divided into multiple code block groups (CBGs), allowing the transmitting device to selectively transmit only the necessary subset of CBGs based on what the receiving device needs, rather than transmitting the entire set. This segmentation enables fine-grained control over transmission resources.
Solution Approach 2:
Instead of transmitting the complete set of CBGs (excessive action), the system transmits only the required subset of CBGs (partial action) determined by the receiving device's needs and the identified parameters, thereby avoiding unnecessary resource depletion while ensuring sufficient data is transmitted for successful decoding.
2Reliability
If the entire set of CBGs is transmitted in the initial data transmission, then all possible data is available for decoding, but communication overhead and data traffic increase due to transmitting unnecessary CBGs
Solution Approach 1:
The receiving device identifies which specific CBGs are needed for successful decoding and extracts only those necessary CBGs from the transport block. This extraction principle allows the system to eliminate unnecessary CBGs from the transmission, reducing communication traffic while maintaining decoding reliability.
3Reliability
If the entire set of CBGs is transmitted in the initial data transmission, then the receiving device has all data needed for decoding, but transmission overhead increases due to transmitting identification and unnecessary data
Solution Approach 1:
The receiving device performs preliminary identification of the necessary CBGs before the transmission occurs. By determining in advance which CBGs are needed based on decoding requirements, the system can prepare a minimal subset for transmission, thereby reducing overhead associated with transmitting identification information and unnecessary data.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may transmit, to a receiving device, an identification of a subset of code block groups (CBGs) of a set of CBGs, wherein the set of CBGs comprises a transport block; and transmit, to the receiving device, an initial data transmission comprising the subset of CBGs. Numerous other aspects are provided.