Uplink Signal Frequency Hopping for Spatial Attenuation
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Solution Overview
Problem
In high-frequency carrier communications, spatial attenuation of signals poses a challenge, and existing technologies face difficulties in efficiently transmitting uplink signals using multiple antennas, which increases costs and power losses due to the need for multiple radio frequency links and digital beamforming.
Innovation Solution
The method involves a first communication node indicating or predefining a frequency hopping manner for a second communication node to transmit uplink signals, utilizing resources such as time domain, frequency domain, or code domain resources to improve the utilization of time-frequency resources and compensate for spatial attenuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antennas are used for uplink signal transmission in high-frequency carrier communications, then spatial attenuation losses can be compensated, but device complexity and power consumption increase due to multiple radio frequency links and digital beamforming
Solution Approach 1:
The patent combines multiple antenna resources into a unified resource pool that can be dynamically shared among multiple users through frequency hopping and time-domain multiplexing. Instead of dedicating separate radio frequency links to each antenna, the system merges antenna resources and controls them through a centralized scheduler that allocates time-frequency resources dynamically, thereby reducing overall system complexity while maintaining spatial diversity benefits
Solution Approach 2:
The patent implements dynamic resource allocation where antenna resources, time slots, and frequency bands are flexibly assigned based on real-time channel conditions and user requirements. The system dynamically switches between different antenna configurations and frequency hopping patterns, allowing the network to adapt to changing conditions without requiring fixed dedicated links for each antenna, thus reducing complexity while maintaining reliability
2Reliability
If multiple antennas are used for uplink signal transmission, then spatial attenuation losses can be compensated, but power consumption increases due to digital beamforming requirements
Solution Approach 1:
The patent employs periodic frequency hopping patterns where the system switches between different frequency bands and antenna configurations in predetermined time intervals. This periodic structure allows the network to concentrate power transmission during specific time-frequency resources rather than continuously activating all antennas, thereby reducing overall power consumption while still achieving spatial attenuation compensation through periodic use of multiple antenna paths
Solution Approach 2:
The patent dynamically changes transmission parameters including frequency band, time slot allocation, and antenna selection based on channel conditions and user requirements. By adjusting these parameters, the system can achieve spatial diversity benefits with reduced power consumption, as not all antennas need to operate at full power simultaneously, and power can be concentrated on the most effective transmission paths at any given time
3Power
If frequency hopping manner is used for SRS transmission, then power spectral density of SRS transmission is increased, but resource configuration complexity increases
Solution Approach 1:
The patent designs a universal resource configuration framework that handles both frequency hopping and non-hopping SRS transmissions through a single set of signaling mechanisms and resource allocation procedures. The same downlink control information formats and resource indication methods can accommodate different transmission modes, eliminating the need for separate complex configuration systems and reducing overall device complexity while still enabling high power spectral density transmission when frequency hopping is employed
Data Source
AI summary
Provided a method for configuring an unlink signal. The method includes: indicating, by a first communication node through signaling, a resource or a frequency hopping manner used by a second communication node for transmitting the uplink signal, or predefining, by the first communication node and the second communication node, the resource or the frequency hopping manner used by the second communication node for transmitting the uplink signal. Further provided are an apparatus for configuring an uplink signal, a method and apparatus for determining an uplink signal, a base station, a terminal and a storage medium.