UE Capability Reporting for Dynamic 5G Scheduling
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Solution Overview
Problem
The uplink/downlink transmission schedule technology in LTE systems is not applicable to 5G systems due to differences in terminal capabilities for processing signals with varying subcarrier spacings, leading to increased design costs and varying hardware/software requirements.
Innovation Solution
A method where User Equipment (UE) generates and sends capability information to the access network device regarding its parallel processing capabilities for signals with different subcarrier spacings, allowing the access network device to dynamically schedule transmissions based on actual terminal capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If configurable subcarrier spacing is introduced in 5G system, then transmission needs of different services can be met, but terminal design costs dramatically increase
Solution Approach 1:
The patent introduces dynamic capability indication where terminals report their parallel processing capabilities to the network. The network then dynamically schedules transmissions based on actual terminal capabilities rather than assuming maximum capabilities, making the system adaptable without requiring all terminals to be designed for maximum performance.
Solution Approach 2:
The patent changes the parameter of subcarrier spacing from fixed to configurable, allowing different subcarrier spacings (15kHz, 30kHz, 60kHz) to be used based on service requirements. This enables the system to meet diverse transmission needs while managing terminal complexity through capability-based scheduling.
2Adaptability or versatility
If parallel transmission on multiple subcarriers with different subcarrier spacings is implemented, then transmission flexibility is improved, but terminal parallel processing capability requirements increase
Solution Approach 1:
The patent implements a feedback mechanism where terminals report their parallel processing capabilities (number of FFT units, buffer sizes) to the network. The network uses this feedback information to make informed scheduling decisions, matching transmission configurations with terminal capabilities to avoid overwhelming the terminal.
Solution Approach 2:
The system dynamically adjusts scheduling decisions based on real-time capability reports from terminals. The network can switch between parallel and sequential processing modes depending on terminal capabilities and current traffic conditions, making operation easier for terminals with limited capabilities.
3Ease of operation
If LTE uplink/downlink transmission schedule technology is used, then system operation is simplified, but it becomes inapplicable to 5G system with varying terminal capabilities
Solution Approach 1:
The patent performs preliminary capability assessment by having terminals report their parallel processing capabilities before scheduling transmissions. This preliminary information gathering allows the network to plan appropriate scheduling strategies in advance, maintaining operational simplicity while ensuring capability compatibility.
Data Source
AI summary
Embodiments of the present disclosure relate the field of communications. Provided are an information sending method, an information receiving method, an apparatus and a system. The method includes: generating, by a terminal, UE capability information, the UE capability information being used for indicating a parallel processing capability of the terminal for signals sent and/or received by subcarriers having different subcarrier intervals and/or used for indicating a data caching capability of the terminal; sending, by the terminal, the UE capability information to an access network device; and receiving, by the access network device, the UE capability information.