Multi-Frequency Band Selection for Wireless Data Transmission
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Solution Overview
Problem
Current wireless communication systems lack procedures for using multiple frequency bands, leading to limited frequency resource utilization and inefficient data transmission in broadband services.
Innovation Solution
A method and system that enable the selection and use of multiple frequency bands by determining which bands to use, transmitting FA information to mobile stations, and facilitating handovers and network re-entries to optimize frequency resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple frequency bands are used for data transmission, then data transmission speed and broadband service capability are improved, but system complexity and lack of standardized procedures worsen
Solution Approach 1:
The patent applies parameter changes by dynamically selecting and switching between multiple frequency bands (FA1, FA2, etc.) based on communication needs. The system changes the operating frequency parameter to optimize data transmission speed while maintaining standardized procedures for handover and network entry across different frequency bands.
Solution Approach 2:
The patent segments the frequency spectrum into multiple independent frequency assignments (FAs) that can be individually managed and selected. Each FA represents a separable frequency band with its own characteristics, allowing the system to divide communication tasks across multiple segments rather than using a single frequency band.
2Adaptability or versatility
If frequency resources are expanded to provide broadband services, then service capability is improved, but frequency resource management complexity worsens
Solution Approach 1:
The patent implements universality by creating a standardized handover and network entry procedure that works across multiple frequency bands and different base stations. The same procedural framework (neighbor BS information message, FA information exchange, handover request/response) serves multiple functions: managing inter-FA handover, supporting multi-FA operation, and facilitating network re-entry, thereby reducing management complexity despite expanded frequency resources.
Solution Approach 2:
The patent uses FA information as an intermediary element that mediates between the mobile station and base station during frequency band switching. The FA information message serves as a standardized intermediary that carries necessary frequency assignment details, enabling systematic management of multiple frequency resources without direct complex interactions for each frequency change.
3Ease of operation
If inter-FA handover procedures are established, then mobility support across frequency bands is improved, but signaling overhead and procedure complexity worsen
Solution Approach 1:
The patent applies preliminary action by providing neighbor BS information messages in advance that contain FA information about available frequency assignments at neighboring base stations. This preliminary information provision enables the mobile station to prepare for potential handovers and reduces the need for extensive signaling during actual handover events, as basic FA compatibility information is already known.
Data Source
AI summary
A method for transmitting and receiving signals using multiple frequency band in a wireless communication system are provided, in which a BS determines whether an MS is to use a plurality of FAs, selects the plurality of FAs if it is determined that the MS is to use the plurality of FAs, transmits FA information about the selected FAs to the MS, and transmits and receives signals to and from the MS in the selected FAs.