Integrated Backhaul Node for Shared RRN and BTS Hardware
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing hardware structure of remote relay nodes (RRN) and base transceiver stations (BTS) in wireless backhaul systems results in hardware cost wastage due to similar configurations, necessitating a more efficient and cost-effective solution.
Innovation Solution
A backhaul device is introduced that combines the functions of RRN and BTS, utilizing a shared hardware structure with distinct beamforming techniques to separate backhaul and access functions, reducing hardware redundancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate RRN and BTS hardware structures are used to implement backhaul and access functions, then functional separation is achieved, but hardware costs increase due to redundancy
Solution Approach 1:
The patent combines the RRN and BTS into a single integrated backhaul device that performs both backhaul and access functions. The device includes a backhaul module for wireless backhaul communication and an access module for terminal access, sharing common hardware resources such as baseband processing units, radio frequency units, and antennas, thereby eliminating hardware redundancy while maintaining functional separation through software or module-level division.
Solution Approach 2:
The backhaul device is designed as a multi-functional unit that can simultaneously perform backhaul transmission and terminal access functions. The device includes configurable modules that can be dynamically assigned to different functions based on operational requirements, allowing a single device to replace what previously required separate RRN and BTS hardware installations.
2Object-affected harmful factors
If beamforming is used to separate backhaul and access beams in TDD standard, then spatial isolation is achieved, but system complexity increases
Solution Approach 1:
The patent segments the wireless communication functions into distinct backhaul and access modules within the integrated device. Each module has dedicated beamforming capabilities that can independently control beam directions and patterns. The backhaul module communicates with donor nodes using separate beams from those used by the access module for terminal communication, providing spatial isolation through segmented beam management.
Solution Approach 2:
The patent applies different beamforming characteristics to different functional modules. The backhaul module uses beamforming parameters optimized for long-range communication with donor nodes, while the access module uses parameters optimized for shorter-range terminal communication. This local optimization of beam quality for each function reduces interference while maintaining efficient communication for each purpose.
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
Embodiments of this application disclose a data transmission method and a related device, to save hardware resources. A backhaul device is a device that can implement both backhaul and access, and a hardware structure of the backhaul device is similar to a hardware structure of an RRN or a BTS. The RRN and the BTS of similar hardware structures are replaced with one backhaul device, thereby reducing hardware costs.