Signal Transmission With Resource Interlace Bandwidth Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing resource interlace solutions in wireless communications systems cannot support flexible bandwidth transmission, leading to inconsistencies between the bandwidth detected by terminals and scheduled by network devices, particularly in next-generation new radio technologies.
Innovation Solution
Implementing a signal transmission method that allocates resources based on a resource interlace with a fixed RB spacing, allowing terminals to report actual bandwidth information to network devices for accurate resource allocation and ensuring compliance with OCB requirements, thereby enabling flexible bandwidth transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed resource interlace structure with 10 RBs is used, then the OCB requirement of at least 80% system bandwidth is met, but flexible bandwidth transmission is not supported when terminal detected bandwidth differs from base station indicated bandwidth
Solution Approach 1:
The patent divides the resource interlace into multiple segments, where each segment corresponds to a subset of resource blocks. This segmentation allows the system to transmit data in smaller bandwidth units while still meeting the OCB requirement when combining multiple segments, thereby enabling flexible bandwidth adaptation without sacrificing regulatory compliance.
Solution Approach 2:
The patent introduces dynamic resource allocation mechanisms where the base station can allocate different numbers of resource interlaces based on the terminal's actual detected bandwidth. The system transitions from a static fixed-10-RBs interlace structure to a dynamic configuration that adapts to varying bandwidth conditions while maintaining OCB compliance through proper segment combination.
2Measurement precision
If the terminal waits for resource reallocation when bandwidth inconsistency is detected, then resource allocation accuracy is improved, but transmission time is increased
Solution Approach 1:
The patent implements preliminary bandwidth detection and reporting by the terminal before actual data transmission. The terminal performs listen-before-talk to detect available bandwidth and reports this information to the base station in advance, allowing the base station to prepare appropriate resource allocation configurations beforehand, thus avoiding transmission delays when bandwidth inconsistencies are detected.
Solution Approach 2:
The patent establishes a feedback mechanism where the terminal reports its detected bandwidth information to the base station, which then adjusts resource allocation accordingly. This feedback loop enables the system to resolve bandwidth inconsistencies dynamically without requiring the terminal to wait for complete resource reallocation, reducing transmission delay while maintaining allocation accuracy.
3Object-generated harmful factors
If the terminal uses LBT mechanism to detect idle bandwidth, then spectrum sharing compliance is improved, but inconsistency between detected bandwidth and scheduled bandwidth occurs
Solution Approach 1:
The patent introduces bandwidth information as an intermediary element that mediates between the terminal's LBT detection and the base station's scheduling decisions. The terminal detects idle bandwidth using LBT and reports this information to the base station, which then uses this intermediary information to make informed scheduling decisions, ensuring both spectrum sharing compliance and bandwidth information consistency.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Embodiments of this application disclose a signal transmission method, a related device, and a system. The method may include: receiving first indication information sent by a network device, where the first indication information is used to indicate an uplink resource that is allocated by the network device to a terminal in a first bandwidth; the resource indicated by the first indication information includes an integer quantity of resource blocks evenly distributed in a part or all of the first bandwidth; performing uplink transmission in a detected idle second bandwidth; and sending second indication information to the network device, where the second indication information is used to indicate the second bandwidth. This solution can support flexible bandwidth transmission, and can better adapt to a multi-bandwidth scenario supported by a next-generation new radio technology.