LTE eNB Resource Allocation for Service-Specific Power
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Solution Overview
Problem
Existing network resource allocation methods in LTE systems are inefficient due to equal allocation of transmit power across resource blocks, which does not account for the varying transmit power requirements of different service types, leading to suboptimal data transmission efficiency.
Innovation Solution
A method where an eNB receives a channel quality indicator (CQI) from a terminal, determines the required resource block (RB) set based on the amount of data and modulation and coding scheme (MCS), and adjusts the RB set according to the service type, specifically increasing or reducing transmit power and RB quantity to optimize data transmission for voice and data services respectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If transmit power is equally allocated to all resource blocks, then the allocation method is simple and easy to implement, but data transmission efficiency deteriorates because different service types require different transmit power levels
Solution Approach 1:
The patent applies local quality by differentiating transmit power allocation based on service types. Voice services receive higher transmit power to ensure quality of service, while data services receive lower transmit power. This localized differentiation of resource allocation according to specific service requirements resolves the contradiction by improving transmission efficiency without significantly complicating the overall allocation mechanism.
Solution Approach 2:
The patent changes the transmit power parameter dynamically based on service type identification. When a voice service is detected, the transmit power for its resource blocks is increased; when a data service is detected, the transmit power is reduced. This parameter adjustment strategy improves overall system efficiency while maintaining implementation feasibility through straightforward power level switching.
2Productivity
If more resource blocks are allocated to terminals, then data transmission capacity is improved, but network resource waste increases when channel conditions are good
Solution Approach 1:
The patent implements dynamic resource block allocation based on terminal channel quality feedback. Terminals with poor channel conditions receive more resource blocks to ensure adequate data transmission capacity, while terminals with good channel conditions receive fewer resource blocks to avoid waste. This dynamic adjustment mechanism resolves the contradiction by matching resource allocation to actual channel needs in real-time.
Solution Approach 2:
The patent utilizes channel quality feedback from terminals to adjust resource block allocation. Terminals report their channel conditions, and the base station uses this feedback information to optimize the quantity of resource blocks allocated to each terminal. This feedback-driven approach ensures that resource capacity is improved where needed while preventing waste in good channel conditions.
Data Source
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AI summary
The present invention discloses a network resource allocation method and apparatus, and a base station, pertaining to the wireless communications field. The method includes: receiving, by an evolved NodeB eNB, a channel quality indicator CQI sent by a terminal; obtaining, by the eNB, a first MCS of the terminal according to the CQI; allocating, by the eNB according to an amount of to-be-transmitted data and the first MCS, to the terminal a first resource block RB set required for transmitting the to-be-transmitted data; and adjusting, by the eNB, the first RB set according to a service type of the to-be-transmitted data and the first MCS.