Terminal Anchor Bandwidth Configuration for RF Power Reduction
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Solution Overview
Problem
In the New Radio (NR) communication system, user equipment (UE) supports multiple transmission bandwidths, leading to extra power loss due to the simultaneous activation of multiple Radio Frequency (RF) chains, even when not all service data is available.
Innovation Solution
A method where a network device configures and transmits anchor transmission bandwidth information to the UE, allowing the UE to operate on a single RF link corresponding to the anchor transmission bandwidth, reducing unnecessary power consumption by not activating multiple RF chains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UE simultaneously turns on multiple RF chains to support multiple transmission bandwidths, then the adaptability to different service requirements is improved, but the power consumption increases
Solution Approach 1:
The patent extracts and identifies a specific anchor transmission bandwidth from the multiple supported bandwidths. The network device configures anchor transmission bandwidth information that indicates a particular bandwidth (e.g., 20 MHz) among multiple supported bandwidths (e.g., 10 MHz, 20 MHz, 40 MHz). The UE only activates RF chains corresponding to this anchor bandwidth for routine operations, extracting the essential functionality needed for most services while avoiding the power cost of maintaining all possible bandwidths simultaneously.
Solution Approach 2:
The patent implements dynamic bandwidth activation based on service requirements. The UE can switch between the anchor transmission bandwidth and other supported bandwidths depending on the specific service needs. For routine services, only the anchor bandwidth is active, but when high-data-rate services are required, the UE can dynamically activate additional bandwidths. This dynamic approach allows the system to adapt to varying service demands while minimizing power consumption during normal operation.
2Adaptability or versatility
If the UE activates multiple RF chains to handle different service data, then the service capability is improved, but the device complexity increases
Solution Approach 1:
The patent applies local quality by differentiating the operational status of different bandwidth components. The anchor transmission bandwidth is configured with permanent or semi-persistent activation, while other supported bandwidths remain inactive by default and are only activated when specifically needed. This creates a hierarchical structure where the anchor bandwidth handles routine services with simple RF chain configuration, while other bandwidths are available on-demand for specialized services, reducing the overall complexity of RF chain management.
3Speed
If the UE maintains multiple transmission bandwidths ready, then the response speed for different services is improved, but the power loss increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring the anchor transmission bandwidth information through RRC signaling before actual data transmission. The network device sends the anchor bandwidth configuration in advance, allowing the UE to prepare and activate the corresponding RF chains proactively. This ensures that when routine services need to be transmitted, the necessary bandwidth is already ready, providing fast response without the need to maintain all possible bandwidths in a ready state, thus avoiding unnecessary power loss.
Data Source
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AI summary
The present disclosure discloses a method for transmitting information, a terminal and a network device. The method includes: obtaining anchor transmission bandwidth information configured by a network device for a terminal, where a transmission bandwidth corresponding to the anchor transmission bandwidth information is at least one of transmission bandwidths supported by the terminal; and transmitting information via transmission resources corresponding to the anchor transmission bandwidth information.