Network-Controlled Repeater Beam Scheduling for 5G Coverage
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Solution Overview
Problem
The deployment of 5G systems faces challenges in enhancing cell coverage due to the use of legacy RF repeaters, which fail to dynamically adjust beam directions and widths, leading to reduced network throughput and increased interference.
Innovation Solution
Implementing a network-controlled repeater (NCR) scheme that uses DCI formats to configure access link beams and time domain resources, allowing for dynamic control of forwarding operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a legacy RF repeater is used to amplify and forward signals in a 5G system, then cell coverage can be enhanced, but the repeater cannot dynamically adjust beam directions and widths, causing mismatch with network device and terminal equipment beams, which reduces signal amplification effectiveness and increases interference to other devices
Solution Approach 1:
The patent applies the Dynamics principle by enabling the repeater to dynamically adjust its beam directions and widths through network control. The network device can configure the repeater's access link beams to match the beam directions of network devices and terminal equipment, allowing the repeater to adapt to changing positions and beam configurations. This dynamic adjustment capability resolves the contradiction by maintaining effective signal amplification while minimizing interference to other devices through precise beam alignment.
2Area of stationary object
If a legacy RF repeater with wide fixed beams is used, then coverage area is extended, but beam directions cannot match dynamic changes of network device and terminal equipment beams, reducing signal amplification effectiveness
Solution Approach 1:
The patent implements dynamics by allowing the repeater's beam parameters (directions and widths) to be dynamically configured by the network device based on current communication conditions. The network device can adjust the repeater's access link beams to match the beam directions of network devices and terminal equipment, ensuring effective signal amplification while maintaining extended coverage area through coordinated beam management.
3Ease of manufacture
If a legacy RF repeater is deployed without network control, then deployment is simple, but forwarding behavior is not controlled by the network, leading to increased noise and interference levels and reduced network throughput
Solution Approach 1:
The patent applies the Feedback principle by establishing a control mechanism where the network device monitors and configures the repeater's forwarding behavior. The network device can adjust the repeater's beam parameters and forwarding operations based on network conditions, terminal positions, and interference levels. This feedback-based control ensures that the repeater operates optimally to maximize network throughput while maintaining relatively simple deployment through standardized control interfaces.
Data Source
AI summary
A repeater includes: a receiver configured to: receive a RRC signaling including first configuration information, second configuration information and third configuration information, the first configuration information being used to configure a list of time domain resources, the second configuration information being used to configure a radio network temporary identity (RNTI) for scrambling a first DCI format, the third configuration information being used to configure a search space for monitoring the first DCI format; and receive the first DCI format; the first DCI format comprising a first information field used to indicate a beam for access link and a second information field used to indicate a time domain resource from the time domain resources configured by the first configuration information; and a forwarding entity configured to perform forwarding on the access link by using the beam and the time domain resource.