Handover Traffic Pattern Parameters in Wireless Network Resource Allocation
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Solution Overview
Problem
Current multicarrier communication systems face challenges in efficiently managing signal timing and resource allocation across multiple carriers, particularly in scenarios with increasing data traffic and the need for high capacity and high data rates, where existing technologies struggle to optimize network efficiency and spectrum utilization.
Innovation Solution
The implementation of carrier aggregation techniques, including orthogonal frequency division multiplexing (OFDM) and dynamic modulation and coding schemes, along with advanced timing advance mechanisms and semi-persistent scheduling, enables efficient operation of multicarrier communications by optimizing resource allocation and spectrum use across multiple carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If carrier aggregation with multiple carriers is implemented to increase data capacity and rates, then network throughput and data rates are improved, but signal timing management and resource allocation complexity increase
Solution Approach 1:
The patent segments the multicarrier system into multiple independent carrier components, each with its own timing advance group (TAG). This allows each carrier to be managed separately with individual timing parameters, reducing the overall complexity of managing multiple carriers by dividing them into manageable segments with independent timing control.
Solution Approach 2:
The patent introduces a new dimension of timing management by implementing timing advance groups (TAGs) that operate independently across different carriers. This dimensional separation of timing control allows the system to handle multiple carriers with different timing characteristics without creating a complex monolithic timing management system.
2Adaptability or versatility
If dynamic modulation and coding schemes are used to optimize resource allocation, then spectrum utilization is improved, but processing requirements and system complexity increase
Solution Approach 1:
The patent implements dynamic modulation and coding schemes that can adaptively change parameters based on channel conditions and traffic requirements. This dynamic adjustment allows the system to optimize spectrum utilization by selecting appropriate modulation and coding configurations for each carrier and time slot, rather than using fixed parameters.
Solution Approach 2:
The patent changes key parameters such as timing advance values, modulation orders, and coding rates dynamically based on network conditions. By allowing these parameters to vary across different carriers and time periods, the system achieves better spectrum utilization while managing complexity through parameterization rather than structural changes.
3Productivity
If semi-persistent scheduling is implemented to manage uplink traffic, then resource allocation efficiency is improved, but scheduling flexibility and device complexity increase
Solution Approach 1:
The patent implements semi-persistent scheduling where uplink resources are allocated periodically based on traffic patterns. Instead of dynamic scheduling for every transmission, the system establishes periodic resource allocations that repeat until changed, reducing scheduling complexity while maintaining good resource utilization for periodic traffic flows.
Solution Approach 2:
The patent performs preliminary resource allocation decisions by configuring semi-persistent scheduling patterns in advance based on expected traffic characteristics. This preliminary action allows the system to pre-allocate resources for predictable traffic patterns, improving efficiency without requiring complex real-time scheduling decisions for every packet.
Data Source
AI summary
A first base station receives from a second base station, a handover request message comprising traffic pattern parameters of a wireless device. The traffic pattern parameters comprise a first traffic periodicity, a first timing offset, and a first message size. A handover request acknowledge message indicating at least one periodic resource configuration parameter determined based on the first traffic periodicity is sent to the second base station. A random access preamble associated with a handover of the wireless device is received from the wireless device. The first base station determines a resource block assignment based on the first message size. A control command is transmitted to the wireless device. The control command indicates: activation of radio resources associated with the at least one periodic resource configuration parameter; and the resource block assignment.