Dynamic Guard Period Adjustment for LTE Resource Efficiency
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Solution Overview
Problem
In LTE systems, especially for cells with large coverage distances, the conventional sub-frame configuration leads to resource wastage due to fixed UpPTS durations, which are not utilized for service data transmission, resulting in inefficient use of resources.
Innovation Solution
A method and device that dynamically adjust the duration of uplink or downlink transmissions based on the location of User Equipment (UE), allowing the network to determine and notify the UE of the appropriate time length of the Guard Period (GP), thereby optimizing resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed GP configuration is used for cells with large coverage distance, then the uplink transmission can be supported, but resources are wasted due to the fixed UpPTS duration not being utilized for service data transmission
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed GP/UpPTS configuration to a dynamic configuration where the network side can adjust the UpPTS duration and service data transmission timing based on UE location information. This allows the system to adapt the guard period length and resource allocation dynamically, ensuring reliable uplink transmission for distant UEs while minimizing resource waste by utilizing previously idle UpPTS resources for service data when appropriate.
Solution Approach 2:
The patent changes the parameter of GP duration and UpPTS timing from fixed to variable based on UE location. The network side determines the time length of GP according to UE location information and notifies the UE of the adjusted configuration, allowing the system to optimize the balance between coverage support and resource utilization by adjusting these time parameters dynamically.
2Reliability
If all UE keep a large GP for cells with large coverage radius, then uplink transmission is supported, but resource utilization efficiency decreases
Solution Approach 1:
The patent applies local quality by providing different GP configurations to different UEs based on their specific location requirements. Instead of uniformly applying a large GP to all UEs, the network side determines appropriate GP time lengths individually for each UE according to its location information, ensuring that only UEs requiring large coverage protection use extended GP, while others can utilize resources more efficiently for service data transmission.
Solution Approach 2:
The system dynamically adjusts GP configuration per UE based on location, allowing the network to optimize resource allocation in real-time. UEs with small coverage requirements can have shorter GP and use UpPTS for service data, while UEs with large coverage requirements maintain longer GP, thereby improving overall resource utilization efficiency while maintaining necessary uplink transmission support.
3Ease of manufacture
If UpPTS is not used for sending service data, then the configuration supports maximum two basic symbols, but this causes loss of uplink capacity
Solution Approach 1:
The patent makes the UpPTS region multi-functional by allowing it to serve both as a guard period for coverage support and as a resource for service data transmission. The network side configures the UE to transmit service data in the UpPTS region when resources are available, transforming the previously dedicated non-service region into a flexible resource that can accommodate both protection and data transmission functions, thereby increasing uplink capacity without complicating the basic configuration framework.
Data Source
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AI summary
Disclosed in an embodiment of the invention are a method and device for determining a guard period, a terminal, and a storage medium. The method comprises: a network side determines, according to information indicating a location of a user equipment (UE) unit, a time length of a guard period (GP) for the UE unit; the network side determines, on the basis of the time length of the GP of the UE unit, a duration of an uplink or downlink service in a subframe; and the network side notifies the UE unit of at least one of the following information: a duration of the uplink service, a duration of the downlink service, or the time length of the GP.