Gateway Mapping Mixed-Data Frames in Distributed Antenna Systems
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Solution Overview
Problem
Current data transmission systems in distributed antenna systems (DAS) and local area networks (LAN) face challenges in efficiently managing diverse data sources and protocols, leading to increased costs and complexity in infrastructure installation and maintenance.
Innovation Solution
A method and apparatus that utilize a gateway to map data packets from LAN protocols to radio data interface protocols, enabling efficient transmission of mixed-data frames between radio equipment controllers (RECs) and radio equipment (REs) in DAS, supporting both downlink and uplink communications, while applying data compression to enhance data transfer capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate transmission infrastructures are used for DAS and LAN, then protocol compatibility and data transfer reliability are improved, but infrastructure cost and complexity increase
Solution Approach 1:
The patent combines DAS and LAN transmission infrastructures into a single unified infrastructure. The gateway device enables both systems to use the same physical network infrastructure while maintaining protocol compatibility through intelligent data mapping and conversion between DAS radio data interface protocols and LAN protocols.
Solution Approach 2:
The gateway serves as an intermediary device between the DAS radio data interface protocol and LAN protocol. It receives data in one protocol format, maps it to the appropriate protocol format for the destination network, and transmits it accordingly, enabling seamless communication across different protocol domains using shared infrastructure.
2Productivity
If data compression is applied to signal samples, then data transfer capacity is improved, but processing complexity and latency increase
Solution Approach 1:
The system performs data compression on signal samples before they are transmitted through the shared infrastructure. By compressing the data in advance at the source or at intermediate gateway nodes, the transmission capacity is maximized without requiring complex decompression operations at every endpoint, thereby managing processing complexity.
Solution Approach 2:
The patent changes the data representation parameters through compression algorithms, transforming the signal samples into a more compact form that reduces the amount of data to be transmitted. This parameter transformation increases data transfer capacity while the compression/decompression operations are managed at strategic points in the network.
Data Source
AI summary
In a distributed antenna system (DAS) and a local area network (LAN), a common communication infrastructure distributes data from radio-based and Internet-based sources. A radio equipment (RE) of the DAS interfaces to a LAN segment. For the downlink, a gateway maps radio signal data from a radio equipment controller (REC) and data packets from a switch to mixed-data frames using a radio data interface protocol for transmission in the DAS. At the RE, the signal data and data packets are retrieved from the mixed-data frames and provided to the air interface and LAN segment, respectively. For the uplink from the RE, the radio signal data from the air interface and the data packets from the LAN segment are mapped to mixed-data frames and transmitted to the gateway. The gateway retrieves the signal samples and data packets from the mixed-data frames for transfer to the REC and switch, respectively.