Digital Repeater Buffering for Zero-Offset Downlink Forwarding
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Solution Overview
Problem
Wireless communication systems face inefficiencies in downlink forwarding, particularly in multi-hop networks, due to timing offsets caused by analog repeating devices, which can lead to reduced communication efficiency and increased latency.
Innovation Solution
Implementing digital repeating devices with buffering capabilities, where a base station transmits control signaling and messages with zero time offset, allowing the repeater to process and forward signals efficiently, and using multiple repeating devices with coordinated configurations to enhance signal forwarding in multi-hop systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If analog repeating devices are used for signal forwarding, then coverage extension is achieved, but timing offsets are introduced that reduce communication efficiency
Solution Approach 1:
The patent changes the fundamental parameter of the repeating device from analog to digital architecture. This parameter change enables precise timing control and buffering capabilities, eliminating the timing offset problem that plagues analog repeaters while maintaining coverage extension capabilities.
Solution Approach 2:
The patent substitutes the mechanical/analog signal processing system with a digital processing system. The digital repeater uses programmable logic and buffered memory to replace the continuous analog signal manipulation, enabling precise control over timing and phase relationships, thereby eliminating timing offsets.
2Area of stationary object
If multiple repeating devices are deployed in multi-hop networks, then coverage is extended further, but latency increases due to cumulative timing offsets
Solution Approach 1:
By changing the repeating device parameter from analog to digital, the system eliminates timing offsets at each hop. The digital architecture with buffered memory allows each repeater to synchronize perfectly with incoming and outgoing signals, preventing cumulative latency that would occur with multiple analog repeaters.
3Reliability
If control signaling and messages are transmitted with time offset for analog repeater processing, then repeater operation is maintained, but downlink forwarding efficiency is reduced
Solution Approach 1:
The digital repeater performs preliminary actions by buffering incoming messages in memory before forwarding. This buffering capability allows the repeater to receive control signaling and data messages simultaneously without requiring time offsets for processing, maintaining reliable operation while maximizing forwarding efficiency.
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. For example, the described techniques provide for a base station of a wireless communications system to determine a configuration for a repeating device to forward signals to another device. In some examples, the configuration may be based on a number of repeating devices in the wireless communications system. The base station may also transmit a message for the repeating device to forward. In some examples, based on a buffering capability of the repeating device, the base station may transmit the message with a zero time offset relative to the control signaling. The repeating device may receive and process the control signaling and receive and buffer the message. In response to processing the control signaling, the repeating device may transmit the buffered message to another device. Implementing aspects of present disclosure may enable an increased efficiency of forwarding in wireless communications systems.