Terminal Bandwidth Configuration for Narrow Mode Interference
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Solution Overview
Problem
In the WCDMA communication standard, terminals do not support narrow bandwidth technology, leading to intra-system performance loss and increased inter-system interference due to mismatched receiving and transmitting bandwidths.
Innovation Solution
A bandwidth configuration method and system that allows terminals to detect the use of narrow bandwidth mode by the network side and adjust their receiving and transmitting bandwidths accordingly, matching them to the network's settings to reduce performance loss and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If narrow bandwidth technology is applied at the network side, then inter-system interference is reduced and spectrum resources are saved, but intra-system performance loss occurs due to mismatch between terminal receiving bandwidth and network transmitting bandwidth
Solution Approach 1:
The terminal dynamically adjusts its receiving bandwidth based on the detected network bandwidth mode. The terminal can switch between first bandwidth mode (wider bandwidth) and second bandwidth mode (narrower bandwidth) to match the network side's transmission bandwidth, thereby eliminating the bandwidth mismatch that causes intra-system performance loss while maintaining the interference reduction benefits of narrow bandwidth technology
Solution Approach 2:
The terminal changes its receiving bandwidth parameter according to the detected network bandwidth mode. When the network uses narrow bandwidth technology, the terminal adjusts its receiving bandwidth parameter to match, ensuring optimal performance. This parameter adaptation allows the system to maintain reliability while benefiting from reduced inter-system interference
2Quantity of substance
If narrow bandwidth technology is used by the network side, then bandwidth occupation is reduced and GSM network bandwidth is saved, but terminal compatibility issues arise as terminals do not support narrow bandwidth technology
Solution Approach 1:
The terminal adapts its receiving bandwidth parameter based on the network's bandwidth mode configuration. By detecting whether the network is using first or second bandwidth mode, the terminal adjusts its own bandwidth parameter accordingly, ensuring compatibility with narrow bandwidth technology while maintaining standard terminal functionality
Solution Approach 2:
The terminal implements dynamic bandwidth mode switching capability, allowing it to adapt to different network bandwidth configurations. This dynamic adaptation enables terminals to work effectively with both traditional and narrow bandwidth networks, improving overall system compatibility without requiring hardware changes
Data Source
AI summary
A bandwidth configuration method includes: A terminal acquires that a narrow bandwidth mode is used at a network side by a downlink transmission signal and/or an uplink transmission signal; and the terminal configures a receiving bandwidth and/or a transmitting bandwidth, where the receiving bandwidth and/or the transmitting bandwidth corresponds to the narrow bandwidth mode at the network side. The terminal side can acquire whether the network side uses the narrow bandwidth technology, and automatically adjust a bandwidth of a corresponding channel at the terminal side when the network side uses the narrow bandwidth technology, so that intra-system performance loss and inter-system interference that are caused by different bandwidth modes between the terminal side and the network side are avoided, thus improving performance of a communication system.