Multi-Antenna PTM Transmission Using Rateless Coding and Beams
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Solution Overview
Problem
Current 5G telecommunication systems are primarily designed for point-to-point (PTP) transmissions, which limit their capacity and efficiency in point-to-multipoint (PTM) transmissions, especially in scenarios requiring high spectral efficiency and coverage.
Innovation Solution
The implementation of a multi-antenna system that uses rateless erasure coding to encode data elements into larger sets of encoding elements, which are then transmitted simultaneously in distinct beams, enhancing both PTP and PTM transmission methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If point-to-point transmission methods are used with large antenna arrays and beamforming, then spectral efficiency is improved, but the system capacity for point-to-multipoint transmissions is limited
Solution Approach 1:
The patent segments the encoded data elements into multiple subsets, each transmitted through different beams simultaneously. This segmentation allows the system to maintain high spectral efficiency per beam while increasing overall system capacity for multiple receivers through parallel transmission paths.
Solution Approach 2:
The patent transitions from traditional single-beam or sequential multi-beam transmission to simultaneous multi-beam transmission by utilizing the spatial dimension. Multiple beams are transmitted in parallel across different spatial directions, effectively adding a dimensional aspect to the transmission system that increases capacity without sacrificing spectral efficiency.
2Reliability
If rateless erasure coding is applied to encode data into larger sets of encoding elements, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies rateless erasure coding in advance to generate a large pool of encoded elements before transmission. This preliminary encoding action ensures that sufficient redundant information is available to handle potential transmission failures, improving reliability while allowing the actual transmission process to proceed efficiently using pre-computed encoded subsets.
Solution Approach 2:
The patent changes the parameter of code rate dynamically by selecting different subsets of encoded elements for transmission. Instead of using a fixed code rate, the system can adjust the effective code rate by transmitting varying numbers of encoded elements, thereby optimizing the balance between reliability and complexity based on channel conditions.
3Productivity
If multiple subsets of encoding elements are transmitted simultaneously in distinct beams, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent makes the multi-antenna system universal by enabling it to perform both point-to-point and point-to-multipoint transmissions simultaneously through different beams. The same hardware infrastructure handles multiple functions and multiple receivers at once, increasing productivity without proportionally increasing complexity through shared resources.
Solution Approach 2:
The patent creates multiple copies of the encoded data subsets, each tailored for specific beam directions and receiver groups. Instead of transmitting the entire encoded set through a single complex channel, the system creates simplified copies for each beam, reducing the complexity of individual transmission paths while maintaining high overall productivity through parallel copying.
Data Source
AI summary
The present subject matter relates to an apparatus. The apparatus includes circuitry being configured for encoding sets of data elements into corresponding larger sets of encoding elements using a rateless erasure coding method, for each subset of one or more encoding elements of the sets of encoding elements determining a set of one or more beams of a multi-antenna system; and transmitting the subset of one or more encoding elements in the set of beams simultaneously.