Paging with Enhanced Beamforming for 5G mmW Networks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 4G wireless networks are inadequate for handling the increasing demand for high-bandwidth and low-latency applications, such as ultra-high definition video and autonomous driving, due to signal attenuation and interference issues with higher frequency millimeter wave (mmW) signals, which are affected by atmospheric conditions and physical obstructions.
Innovation Solution
Implementing enhanced beamforming techniques at both base stations and end-user devices to improve signal propagation by using narrow beams for paging requests and responses, allowing for more efficient communication and reducing interference, thereby increasing the reliability and timeliness of message delivery in hostile propagation environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If millimeter wave (mmW) signals are used for high-bandwidth wireless communication, then data transmission capacity is improved, but signal reliability deteriorates due to atmospheric attenuation and physical obstructions
Solution Approach 1:
The patent applies beamforming to concentrate mmW signals into focused directional beams rather than omnidirectional propagation. This creates localized high-intensity signal paths through the atmosphere, improving reliability by compensating for atmospheric attenuation and obstruction effects in specific directions while maintaining high data transmission capacity.
Solution Approach 2:
The patent dynamically adjusts beamforming parameters including beam direction, width, and power distribution based on channel conditions. By changing these parameters in response to atmospheric conditions and obstruction detection, the system maintains reliable communication links while preserving high-bandwidth capabilities for 5G applications.
2Area of stationary object
If wide beams are used for paging messages, then coverage area is improved, but message delivery reliability deteriorates in hostile propagation environments
Solution Approach 1:
The patent segments the paging message transmission into multiple narrow directional beams that sweep across the coverage area. Instead of using a single wide beam, the system divides the coverage region into multiple directional sectors, transmitting the same paging message through multiple focused beams to ensure reliable delivery to devices in different locations.
Solution Approach 2:
The patent implements periodic beam sweeping where narrow beams systematically scan through different directions at regular intervals. This periodic action ensures that paging messages reach devices throughout the coverage area while maintaining high signal intensity in each direction, thereby improving delivery reliability compared to continuous wide beam transmission.
3Reliability
If narrow beams are used for paging requests and responses, then signal reliability is improved, but device complexity increases due to beamforming requirements
Solution Approach 1:
The patent performs beamforming training and channel estimation before actual paging communication. By preliminarily establishing the optimal narrow beam directions and parameters, the system reduces the complexity of real-time beamforming during paging operations. Devices can reuse the pre-determined beam configurations, simplifying the implementation while maintaining high signal reliability.
4Loss of energy
If traditional wide beam paging is used, then resource consumption is reduced, but message delivery timeliness deteriorates in mmW environments
Solution Approach 1:
The patent uses periodic narrow beam sweeping to efficiently deliver paging messages with minimal resource consumption. By concentrating transmission power into focused beams that sweep through the coverage area, the system achieves reliable message delivery faster than wide beam approaches, reducing both energy waste and delivery time in mmW propagation conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the likelihood of timely message delivery and reduces resource consumption, enabling better support for future 5G wireless networks and other systems using mmW signaling by overcoming signal attenuation and interference challenges, thus improving the overall performance of wireless communication systems.
Implementation Method 1
A base station may transmit, via a downlink communication, a paging message to multiple end-user devices with a wide beam. If an end-user device cannot obtain the paging message, the end-user device may transmit a paging request to the base station via an uplink communication with a narrow beam.
Data Source
AI summary
The present disclosure describes methods and apparatuses for paging with enhanced beamforming. In example implementations, a base station (BS) transmits at a paging occasion a paging message to multiple end-user devices (EUDs) via a downlink communication with a wide beam. If an EUD fails to obtain the paging message, the EUD selects a frequency sub-band and formulates a paging request with an EUD identifier. The EUD transmits the paging request to the BS via an uplink communication with a narrow beam using the selected frequency sub-band. The BS processes the paging request and formulates a paging response based on the identifier. The BS transmits the paging response via a downlink communication with a narrow beam on the selected frequency sub-band. The BS determines a direction of the narrow beam of the downlink communication based on a direction of the narrow beam of the uplink communication to answer the paging response.