Uplink Data Transmission Scheduling via Frequency Bandwidth Indication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In uplink data transmission over unlicensed frequency bands, network devices and terminal equipment often fail to obtain consistent information about available frequency domain bandwidth resources, leading to inefficient spectral resource utilization and high transmission latency.
Innovation Solution
The network device or terminal equipment transmits first indication information to indicate one or more frequency-domain bandwidth resources, allowing both devices to agree on the actually used resources, thereby improving spectral resource utilization efficiency, reducing transmission latency, and ensuring flexible scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the network device and terminal equipment independently determine frequency domain bandwidth resources without explicit indication, then the scheduling process is simpler, but the spectral resource utilization efficiency decreases and transmission latency increases
Solution Approach 1:
The patent implements a feedback mechanism where the network device transmits first indication information to indicate the actual used frequency domain bandwidth resources, and the terminal equipment feeds back second indication information. This mutual feedback ensures both sides have consistent understanding of the actual resources used, resolving the contradiction between simple scheduling and efficient resource utilization.
Solution Approach 2:
The network device performs preliminary action by transmitting first indication information before the terminal equipment transmits uplink data. This preliminary indication allows the terminal to accurately determine the actual used resources in advance, improving spectral utilization efficiency without adding significant complexity to the overall scheduling process.
2Productivity
If the network device and terminal equipment do not exchange information on actual used frequency domain bandwidth resources, then the communication overhead is reduced, but transmission latency increases due to lack of consistent resource information
Solution Approach 1:
The patent uses feedback mechanisms where the network device sends first indication information about actual used resources, and the terminal equipment sends second indication information. This feedback exchange ensures both sides have consistent resource information, reducing transmission latency without excessive information overhead since the indication information is compact and targeted.
Solution Approach 2:
The network device performs preliminary action by transmitting first indication information before the terminal equipment transmits uplink data. This preliminary exchange of resource information allows the terminal to prepare accurately, reducing transmission latency while minimizing information overhead by exchanging only the necessary resource indication data.
3Productivity
If the network device transmits first indication information about frequency domain bandwidth resources, then the spectral resource utilization efficiency improves, but the device complexity increases
Solution Approach 1:
The patent implements feedback where the network device transmits first indication information and the terminal equipment transmits second indication information. This mutual feedback mechanism improves spectral resource utilization efficiency while keeping the complexity manageable through standardized indication information formats and processing procedures.
Solution Approach 2:
The first indication information and second indication information serve multiple functions: they indicate actual used frequency domain bandwidth resources, enable scheduling agreements, and provide basis for resource allocation decisions. This multi-functionality improves spectral utilization efficiency without proportionally increasing device complexity.
4Adaptability or versatility
If the network device and terminal equipment establish clear agreement on actual used frequency domain bandwidth resources through indication information exchange, then the scheduling flexibility is improved, but the communication overhead increases
Solution Approach 1:
The patent uses feedback mechanisms where the network device sends first indication information and the terminal equipment sends second indication information about actual used resources. This feedback exchange enables flexible scheduling by ensuring both sides have consistent resource information, while the overhead is managed through compact indication formats.
Solution Approach 2:
The network device performs preliminary action by transmitting first indication information before the terminal equipment transmits uplink data. This preliminary exchange enables flexible scheduling decisions to be made in advance, improving scheduling adaptability while minimizing communication overhead by exchanging only the necessary resource indication data.
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
Methods and apparatuses for data transmission and reception are provided. The method includes: transmitting data scheduling control information by a network device to a terminal equipment; transmitting first indication information used for indicating one or more frequency-domain bandwidth resources by the network device to the terminal equipment; and receiving by the network device the uplink data transmitted by the terminal equipment. Hence, efficiency of utilization of spectral resources may be improved, transmission latency may be reduced, and flexibility of scheduling may be ensured.