Uplink Cancellation Indication with Dynamic Bit Granularity
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Solution Overview
Problem
Existing information transmission methods in mobile communication systems, such as 5G, face inflexibility in uplink cancellation indication parameters, leading to waste of information bits or incomplete indication due to fixed configurations.
Innovation Solution
The method involves transmitting uplink cancellation indications with first and second indication information, where the first parameter of the second indication information is determined based on the payload size and bit quantity of the uplink cancellation indication, including bit quantity and indication granularity, to enhance flexibility and reduce waste or incomplete indication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed parameter configurations are used for uplink cancellation indication, then the structure is simple and reliable, but information bits are wasted or indication is incomplete
Solution Approach 1:
The patent applies dynamics by making the parameter configuration of uplink cancellation indication flexible rather than fixed. The network side device dynamically determines parameters such as time domain indication granularity and frequency domain indication granularity based on actual transmission needs, allowing the system to adapt to different scenarios and avoid both information waste and incomplete indication.
Solution Approach 2:
The patent changes physical or logical parameters of the indication information structure. By allowing variable configuration of indication parameters (granularity, bit quantity) based on payload size and transmission requirements, the system optimizes the balance between reliability and complexity, ensuring complete indication while avoiding bit waste.
2Productivity
If dynamic multiplexing is used for eMBB and URLLC services, then resource utilization is improved, but URLLC transmission reliability may be compromised due to scheduling conflicts
Solution Approach 1:
The patent introduces feedback mechanisms where the network side device sends uplink cancellation indication information to the terminal device, allowing the terminal to adjust its transmission accordingly. This feedback loop enables dynamic multiplexing to maintain URLLC reliability by informing the terminal when resources are cancelled, thus preventing transmission failures while optimizing resource utilization.
Solution Approach 2:
The network side device performs preliminary scheduling and allocation of resources, using indication information to prepare and communicate cancellation decisions before actual transmission conflicts occur. This preliminary action allows the terminal to adjust its transmission plan in advance, maintaining URLLC reliability while enabling efficient dynamic multiplexing.
3Ease of manufacture
If fixed bit quantity is used for indication information, then the transmission format is simple, but information bits are wasted when payload size varies
Solution Approach 1:
The patent changes the bit quantity parameter of indication information based on the actual payload size and transmission requirements. By dynamically adjusting the number of bits used for time domain and frequency domain indication, the system avoids wasting information bits while maintaining format simplicity through standardized parameter determination rules.
Solution Approach 2:
The patent applies partial action by using only the necessary number of bits for indication information rather than always using a fixed maximum amount. This allows the system to use minimal required bits for small payloads and allocate more bits only when needed, reducing bit waste while maintaining sufficient indication capability.
Data Source
AI summary
This disclosure provides an information transmission method and an electronic device. The method includes: transmitting an uplink cancellation indication, where the uplink cancellation indication includes first indication information and second indication information, a first parameter of the second indication information is determined based on a payload size of the uplink cancellation indication and a bit quantity of the first indication information, and the first parameter includes at least one of a bit quantity and an indication granularity.