Carrier Frequency Allocation for Bearer Traffic Types
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Solution Overview
Problem
In wireless communication systems, particularly in LTE networks, existing methods do not effectively allocate resource blocks based on the content type of bearer traffic, leading to suboptimal bearer service quality due to variations in carrier frequencies affecting radio frequency propagation and packet loss.
Innovation Solution
A base station is configured to allocate resource blocks based on the content type of bearer traffic, scheduling transmissions on lower carrier frequencies for high-quality services like VoLTE and higher carrier frequencies for less critical traffic, using IP addresses and port numbers to determine content types and adjust resource allocation accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resource blocks are allocated uniformly across all carrier frequencies without considering content type, then device complexity is reduced and ease of operation is improved, but bearer service quality deteriorates due to suboptimal resource allocation for different traffic types
Solution Approach 1:
The patent applies local quality by allocating resource blocks differently based on the content type of bearer traffic. Different carrier frequencies are assigned to different traffic types (e.g., VoLTE, web browsing, file transfer) according to their specific requirements. This allows each traffic type to receive optimized resource allocation tailored to its characteristics, thereby improving bearer service quality without requiring complete reconfiguration of the entire system.
Solution Approach 2:
The patent changes the parameter of carrier frequency allocation based on content type. Instead of using a fixed allocation scheme, the system dynamically adjusts which carrier frequencies are used for different traffic types. This parameter change enables the system to optimize resource allocation for reliability while maintaining manageable complexity through rule-based assignment.
2Reliability
If lower carrier frequencies are used for all bearer traffic, then radio frequency propagation is improved, but higher carrier frequencies become unavailable for traffic types that benefit from their unique propagation characteristics
Solution Approach 1:
The patent applies local quality by matching specific carrier frequencies to specific content types based on their propagation characteristics. Lower carrier frequencies are allocated to traffic types that benefit from better propagation (e.g., VoLTE), while higher carrier frequencies are allocated to traffic types that can tolerate or benefit from their characteristics (e.g., web browsing, file transfer). This localized optimization improves overall system reliability while maintaining adaptability.
Solution Approach 2:
The patent introduces dynamics by making carrier frequency allocation dependent on the content type of the traffic. The system can dynamically select appropriate carrier frequencies based on real-time traffic requirements, allowing it to adapt to different service conditions while optimizing propagation performance for each traffic type.
3Reliability
If carrier frequency allocation is optimized for specific content types, then bearer service quality is improved, but the complexity of determining and managing content types increases
Solution Approach 1:
The patent applies preliminary action by determining the content type of bearer traffic before allocating carrier frequencies. The system identifies whether traffic is VoLTE, web browsing, file transfer, or other types in advance, and then assigns appropriate carrier frequencies based on this pre-determined classification. This preliminary identification simplifies the overall process by making the allocation decision straightforward once the content type is known.
Solution Approach 2:
The patent uses content type classification as an intermediary between the traffic and the carrier frequency allocation. Instead of directly optimizing for each traffic type, the system first categorizes traffic into content types, which then serve as the basis for frequency selection. This intermediary approach manages complexity by creating a clear mapping between content types and frequency allocations.
Data Source
AI summary
In a communication system comprising a base station having a set of carrier frequencies, ranging from a lowest to a highest carrier frequency, for serving user equipment devices (UEs), the base station may schedule a first transmission of first bearer traffic to be on a first carrier frequency of the set based at least in part on a correlation between (i) the first bearer traffic being of a first type of bearer traffic and (ii) where the first carrier frequency falls within the range of carrier frequencies. The base station may also schedule a second transmission of second bearer traffic to be on a second, different carrier frequency of the set based at least in part on a correlation between (i) the second bearer traffic being of a second, different type of bearer traffic and (ii) where the second carrier frequency falls within the range of carrier frequencies.