Uplink Control Channel Parameter Adjustment for Coverage Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current communication technologies cannot adjust the reliability of uplink control channels based on different scenarios, leading to inconsistent transmission reliability for terminal devices with varying coverage conditions.
Innovation Solution
A method and device that allow network devices to send indication information to terminal devices, adjusting parameters such as time domain length, frequency domain length, repeat count, and transmit diversity manner to flexibly configure the uplink control channel, ensuring optimal reliability based on specific coverage scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the uplink control channel format is determined solely based on content of uplink information, then the channel configuration is simple, but the reliability of uplink transmission cannot be adjusted based on different coverage scenarios
Solution Approach 1:
The patent introduces indication information that carries parameters for configuring uplink control channel formats, allowing the network device to dynamically adjust transmission parameters such as time domain length, frequency domain length, and repeat counts based on coverage scenarios, thereby changing the reliability characteristic without fundamental system redesign
Solution Approach 2:
The patent enables dynamic adjustment of uplink control channel format parameters through indication information, allowing the system to adapt transmission reliability to different coverage scenarios (edge of cell vs center of cell) rather than using a static configuration based only on information content
2Reliability
If the transmit power is increased to improve uplink coverage, then the transmission distance increases, but the power consumption increases
Solution Approach 1:
The patent changes transmission parameters through indication information to improve uplink coverage for terminal devices with limited transmit power. By adjusting time domain length, frequency domain length, and repeat counts, the system achieves better coverage without requiring increased transmit power, thus avoiding additional power consumption
3Use of energy by moving object
If the reliability requirement on uplink control channel is lowered for edge devices, then the power consumption is reduced, but the transmission reliability deteriorates
Solution Approach 1:
The patent uses indication information to configure appropriate uplink control channel formats that balance power consumption and transmission reliability for edge devices. By optimizing parameters like time domain length and repeat counts, the system achieves acceptable reliability without requiring maximum power consumption
Data Source
AI summary
The embodiments of this application provide a method and a device for sending and receiving control information, to flexibly adjust reliability of uplink transmission. A network device sends indication information of an uplink control channel to a terminal device. The indication information of the uplink control channel indicates at least one parameter of the following transmission parameters: a time domain length, a frequency domain length, a time domain repeat count, a frequency domain repeat count, or a transmit diversity manner. The network device receives uplink control information from the terminal device according to the indication information by using the uplink control channel.