PTRS Configuration for TD-OCC Multiplexed DMRS Ports
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Solution Overview
Problem
Current 5G communication systems face challenges in efficiently configuring phase tracking reference signals (PTRS) associated with demodulation reference signals (DMRS) ports multiplexed via time domain orthogonal cover codes (TD-OCC), due to procedural conflicts and specification conflicts in network communication protocols, which impact data transmission quality.
Innovation Solution
A computer-implemented method and apparatus for improved transmission configurations of PTRS with DMRS ports multiplexed via TD-OCC, involving receiving indications from network elements to enable or disable PTRS transmission, determining transmission ranks, and updating PTRS configuration parameters to ensure efficient PTRS transmission, thereby bypassing restrictions imposed by conflicting standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If PTRS transmission is enabled for DMRS ports multiplexed via TD-OCC, then phase tracking accuracy is improved, but protocol conflicts and specification conflicts occur
Solution Approach 1:
The patent introduces dynamic configuration parameters (ptrs-TD-OCC-Allowed-r18) that allow the system to adaptively enable or disable PTRS transmission for TD-OCC multiplexed DMRS ports based on network conditions and capability indications, resolving the static protocol conflict into a flexible, condition-based solution
Solution Approach 2:
The patent changes the state of PTRS transmission by introducing new configuration parameters and capability indicators that modify the transmission behavior, allowing the system to transition between different operational modes (enabled/disabled) based on specific conditions
2Reliability
If PTRS is used in 8-TX UL transmissions, then data transmission quality is enhanced, but DMRS overhead increases
Solution Approach 1:
The patent enables PTRS to serve multiple functions simultaneously: phase tracking for high-quality transmission and implicit resource allocation indication, thereby enhancing transmission quality without proportionally increasing overhead through dedicated signaling
3Object-affected harmful factors
If PTRS transmission is configured, then phase noise mitigation is improved, but bandwidth overhead increases
Solution Approach 1:
The patent applies partial action by selectively enabling PTRS transmission only for specific DMRS ports and transmission scenarios (8-TX UL with TD-OCC) rather than universally, thereby achieving phase noise mitigation where needed while minimizing overall bandwidth overhead
Data Source
AI summary
Embodiments of the present disclosure provide a method for improved transmission configurations for phase tracking reference signals (PTRS) associated with demodulation reference signal (DMRS) ports multiplexed with one or more DMRS ports via time domain orthogonal cover codes (TD-OCC). The method includes receiving, from a network element, a first indication indicating whether transmission of a PTRS associated with a first DMRS port associated with a first DMRS is enabled in an apparatus, where the first DMRS port is multiplexed with one or more DMRS ports via TD-OCC. The method also includes determining, based at least in part on the first indication, that the apparatus is enabled to transmit the PTRS. The method also includes, in response to determining that the apparatus is enabled to transmit the PTRS, causing transmission of the PTRS to the network element.