Multi-Beam Uplink Selection Under MPE and Link Failure Constraints
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing multi-beam operations, particularly in scenarios involving multiple user equipment (UEs) and varying communication requirements such as latency, reliability, and throughput, which are not adequately addressed by current protocols and network architectures.
Innovation Solution
The system and method enhance multi-beam operations by implementing advanced radio resource management and beam management processes, including beam pairing and synchronization techniques, to optimize communication between UEs and network nodes, supporting diverse applications like eMBB, URLLC, and mMTC, and enabling efficient sidelink communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-beam operations are implemented to support multiple UEs with varying communication requirements, then network capacity and service diversity are improved, but system complexity and resource management difficulty increase
Solution Approach 1:
The patent segments the multi-beam operation into distinct operational modes (first operation mode and second operation mode) with different latency requirements. Each mode is independently managed with specific beam management procedures, allowing the system to handle diverse service requirements without overwhelming complexity. URLLC traffic uses one mode while eMBB traffic uses another, enabling service-specific optimization.
Solution Approach 2:
The patent implements dynamic beam management where beams can be activated or deactivated based on traffic conditions and service requirements. The system dynamically switches between different operation modes depending on the type of traffic (URLLC vs eMBB) and adjusts beam configurations accordingly, providing adaptability without permanent complex structures for all scenarios.
2Reliability
If beam management processes are enhanced to improve communication reliability, then link stability is improved, but processing overhead and latency increase
Solution Approach 1:
The patent establishes preliminary beam configurations and pairing relationships in advance for different operation modes. Beam pair links are pre-established between TRPs and UEs based on predicted traffic patterns and service requirements. This preliminary setup reduces the need for extensive real-time beam management when actual communication occurs, thereby maintaining reliability while reducing processing overhead during active transmission.
3Speed
If resource allocation is optimized for low-latency applications, then URLLC performance is improved, but overall network throughput may be reduced
Solution Approach 1:
The patent applies different resource allocation strategies to different spatial locations and service types. Specific beams and time-frequency resources are allocated with low-latency characteristics for URLLC services in certain regions, while other beams continue to use throughput-optimized configurations for eMBB services. This localized optimization ensures that low-latency requirements are met where needed without sacrificing overall network throughput.
Solution Approach 2:
The patent merges multiple operation modes and service types within a unified multi-beam framework. Both URLLC and eMBB traffic are handled simultaneously through different beams and resource configurations, allowing the system to achieve both low latency for critical services and high throughput for data-intensive services within the same network infrastructure.
Data Source
AI summary
A system, method and apparatus for mobile communications including sidelink transmissions is provided. A user equipment (UE) receives one or more messages comprising configuration parameters of reference signals associated with a plurality of uplink beams and a first downlink beam. The UE identifies a plurality of uplink beams associated with the first downlink beam based on a measurement of the reference signals and a corresponding ranking associated with each of the plurality of uplink beams. The UE determines a first plurality of uplink beams that satisfy maximum permissible exposure (MPE) limits and that are not subject to link failure. The UE then transmits uplink data or control information using the first uplink beam with the highest ranking.