User Equipment Time Resource Grouping for Signal Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In existing LTE communications systems, the indication signal cannot accurately indicate the time resource occupied by a data signal, leading to increased time and energy consumption for the receive end to detect the data signal.
Innovation Solution
The proposed method involves obtaining time resource grouping information, sending an indication signal that indicates physical resource numbers, and determining the time resources occupied by the data signal using formulas such as n %subframe(ngroup) = mod(n %RPT + Δf, Ngroup) to accurately identify the time resources, thereby reducing energy consumption and improving network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the indication signal only indicates frequency resources, then the system maintains simplicity in signal design, but the receive end must perform blind detection on all possible time resources, increasing energy consumption and detection time
Solution Approach 1:
The patent segments time resources into multiple time resource groups (N time resource groups), each with specific time resource numbers. The indication signal indicates which group contains the data signal, allowing the receive end to focus detection on a specific group rather than all possible time resources, thus reducing energy consumption while maintaining signal design simplicity
Solution Approach 2:
The patent introduces a new dimension of time resource grouping to the existing frequency resource indication mechanism. By adding time resource group indication to the indication signal, the system expands from one-dimensional frequency resource indication to two-dimensional (frequency + time group) resource indication, enabling more precise resource location without significantly increasing signal complexity
2Device complexity
If the indication signal only indicates frequency resources, then the signal structure remains simple, but the detection time for the receive end increases due to blind detection across all time resources
Solution Approach 1:
By segmenting time resources into N distinct time resource groups and indicating the specific group containing the data signal, the patent reduces the detection time for the receive end from checking all possible time resources to checking only within the indicated group, thereby minimizing time loss while preserving simple signal structure
Solution Approach 2:
The indication signal performs preliminary action by pre-indicating which time resource group contains the data signal before the receive end begins detection. This advance information allows the receive end to skip unnecessary detection in other time groups, significantly reducing detection time without complicating the signal structure
Data Source
AI summary
Embodiments of the present invention provide a data transmission method and user equipment. The method includes: obtaining, by first user equipment, time resource grouping information, where the time resource grouping information includes physical resource numbers of physical resources in N time resource groups, and N is a positive integer; sending, by the first user equipment, an indication signal, where the indication signal indicates one or more physical resource numbers; determining, by the first user equipment according to the time resource grouping information and the one or more physical resource numbers indicated by the indication signal, time resources occupied by a data signal in the N time resource groups; and sending, by the first user equipment, the data signal by using the time resources occupied by the data signal in the N time resource groups. In the embodiments of the present invention, energy consumption of a receive end can be reduced.