Timer-Based PDCCH Monitoring for Low-Delay Uplink Grants
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In communication systems, terminal devices face delays due to the need for multiple interactions (SR and BSR) to obtain uplink communication resources, affecting communication efficiency.
Innovation Solution
A method where a terminal device starts a timer after requesting an uplink resource, monitoring a PDCCH within a specified time window, and receives the resource grant before the timer expires, reducing the need for multiple interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device performs multiple interactions (SR and BSR) to obtain uplink resources, then the resource allocation is reliable and controlled, but the communication delay increases and efficiency decreases
Solution Approach 1:
The terminal device performs a resource request in advance and starts a timer to monitor for the resource grant. This preliminary action allows the device to proactively seek resources rather than waiting passively, reducing the delay caused by multiple interaction rounds while maintaining reliable resource allocation through the timer-based monitoring mechanism.
Solution Approach 2:
The invention skips the traditional multi-step interaction process (SR then BSR) by allowing the terminal device to request resources and monitor for grants within a timer-defined window. This rushing through of the resource acquisition process reduces the number of interaction steps and accelerates resource obtaining while maintaining control through the timer mechanism.
2Ease of manufacture
If the terminal device performs multiple interactions (SR and BSR) to obtain uplink resources, then the network device can control resource allocation precisely, but the number of interaction steps increases and efficiency decreases
Solution Approach 1:
The network device receives a resource request in advance and can prepare the resource grant beforehand. The terminal device's timer-based monitoring ensures that the network device's control decisions are received within a defined window, maintaining precise control while reducing the overall interaction time and improving communication efficiency.
Solution Approach 2:
The invention rushes through the resource allocation control process by consolidating the interaction into fewer steps. The terminal device requests resources and monitors for grants within a timer window, skipping the traditional multi-step SR-BSR interaction sequence. This maintains the network device's ability to control resource allocation while significantly improving communication efficiency by reducing interaction overhead.
Data Source
AI summary
This application provides a communication method and apparatus to reduce a communication delay and improve communication efficiency. A terminal device starts a first timer after sending first information, where the first information is used to request an uplink resource, and the first timer indicates a time window for monitoring a physical downlink control channel (PDCCH). The terminal device then receives second information on the PDCCH before the first timer expires, where the second information indicates the uplink resource.