Dynamic Carrier Subset Selection for Wireless Terminals
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Solution Overview
Problem
The current limitations in wireless networks restrict terminals from accessing and utilizing a large number of spectrum resources simultaneously, as they can only handle a limited number of carriers, whereas base stations can support much wider bandwidths, leading to inefficient carrier aggregation and utilization.
Innovation Solution
Implementing a method where a base station sends activation and monitoring commands to terminals to dynamically select and switch between subsets of carriers, allowing the terminal to utilize a larger number of carriers over time, thereby improving carrier utilization and load balancing while reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the base station activates more than m carriers for the terminal, then the terminal can access more spectrum resources and improve throughput, but the terminal cannot simultaneously receive data on more than m carriers due to capability limitations
Solution Approach 1:
The patent implements dynamic carrier selection and switching where the base station activates more than m carriers for the terminal, but the terminal only simultaneously monitors and receives data on at most m carriers. The base station dynamically selects which subset of carriers the terminal should monitor based on load and interference conditions, allowing the terminal to access more spectrum resources over time without exceeding its simultaneous reception capability.
2Productivity
If the terminal monitors all activated carriers, then the terminal can receive data from all carriers, but the terminal's processing complexity and power consumption increase significantly
Solution Approach 1:
The patent segments the set of activated carriers into multiple subsets, where each subset contains at most m carriers that the terminal can simultaneously monitor. The base station configures multiple such subsets and dynamically指示s the terminal which subset to monitor at any given time. This segmentation allows the terminal to access more than m carriers over time while keeping the simultaneous monitoring complexity within its capability limits.
3Quantity of substance
If the base station supports much wider bandwidth with many carriers, then the network capacity increases, but the terminal's ability to utilize these resources remains limited
Solution Approach 1:
The base station performs preliminary actions by pre-configuring multiple subsets of carriers (each with at most m carriers) and activating more than m carriers in total. The terminal is prepared with knowledge of multiple carrier subsets in advance, and the base station dynamically selects which subset the terminal should monitor based on current network conditions, allowing the terminal to adaptively utilize the expanded spectrum resources.
Data Source
AI summary
Communications in a wireless network for carrier Selection and switching are provided. A terminal in the wireless network is simultaneously receiving data on at most m carriers. A base station in the wireless network sends an activation command associated with more than m carriers to the terminal. The terminal activates the more than m carriers. Then the base station selects a first subset from the activated carriers, and sends a first monitoring command associated with the first subset via a first physical-layer signaling to the terminal. When load and/or interference situations are changed, the base station selects a second subset from the activated carriers, and sends a second monitoring command associated with the second subset via a second physical-layer signaling to the terminal, wherein the first subset is different from the second subset.