Terminal Logical Channel Resource Allocation Balance
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Solution Overview
Problem
In LTE systems, the existing resource allocation methods prioritize high-priority logical channels, leading to imbalanced resource allocation where low-priority channels are often left without resources, as data on high-priority channels occupies the communication channel consistently.
Innovation Solution
A method that selects a logical channel set and maps data based on prioritized bit rates, allowing data from low-priority channels to be transmitted by utilizing a transport block corresponding to a specific radio interface technology, thereby increasing the probability of low-priority data transmission and improving resource allocation balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data on high-priority logical channels is mapped onto the communication channel first until the channel is full, then high-priority data transmission is ensured, but low-priority logical channels have no resource to occupy, lowering resource allocation balance
Solution Approach 1:
The patent segments the resource allocation process into multiple phases: first allocating resources to high-priority logical channels up to their guaranteed bit rate, then allocating remaining resources to low-priority logical channels. This segmentation ensures both high-priority data transmission reliability and resource allocation balance by creating distinct allocation stages for different priority levels.
Solution Approach 2:
The patent changes the allocation parameter from simple priority-based sequential mapping to a two-stage process that considers both priority and prioritized bit rate (PBR). By introducing PBR as a controlling parameter, the system dynamically adjusts resource allocation to ensure high-priority channels receive guaranteed resources while low-priority channels can utilize remaining capacity, thus resolving the contradiction between reliability and balance.
2Speed
If all to-be-sent data on each logical channel is sequentially mapped onto the transport block based on priority, then high-priority data is transmitted first, but the transmission probability of low-priority data decreases
Solution Approach 1:
The patent applies partial action by allocating only the guaranteed bit rate portion of high-priority data first, rather than mapping all high-priority data exclusively. This partial allocation leaves sufficient room in the transport block for low-priority data, thereby maintaining high transmission speed for priority data while improving overall transmission probability through utilization of remaining capacity.
Solution Approach 2:
The patent ensures continuity of useful action by implementing a two-stage mapping process where the first stage handles high-priority guaranteed bit rate data and the second stage continuously utilizes remaining transport block capacity for low-priority data. This continuous utilization maximizes overall productivity while preserving the speed advantage for high-priority transmissions.
Data Source
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AI summary
A resource allocation method and a terminal are provided. The method includes: receiving an uplink scheduling grant sent by an access network device, where the uplink scheduling grant includes a transport block corresponding to at least one radio interface technology; selecting a logical channel set from logical channels of a terminal, where the logical channel set is a set of logical channels on which to-be-sent data exists and that correspond to a first radio interface technology, and the first radio interface technology is any one of the at least one radio interface technology, or a radio interface technology specified by the access network device in the at least one radio interface technology; and mapping, based on a priority and a prioritized bit rate that are of each logical channel in the logical channel set and corresponding to the first radio interface technology, to-be-sent data corresponding to the logical channel set onto a transport block corresponding to the first radio interface technology. Implementation of embodiments of the present invention can improve resource allocation balance.