Configured Grant Service Allocation for 5G Uplink QoS
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Solution Overview
Problem
In 5G mobile communication systems, there is a lack of clear rules on which service/traffic data can use configured grant resources and which can use dynamic resources, leading to potential failures in meeting Quality of Service (QoS) requirements for services with strict delay requirements, as the base station is unclear about the service requirements of terminal devices.
Innovation Solution
A method and apparatus that determine which service is allowed to be transmitted on configured grant resources by using indication information within the configuration information of logical channels, allowing MAC Service Data Units (SDUs) to be transmitted on part or all of the configured grant resources, and indicating whether they can be transmitted on configured grant type 1, type 2, or dynamic grant resources, ensuring that services with strict delay requirements, such as URLLC, are prioritized on configured grants when conflicts arise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If configured grant resource is used for uplink transmission, then transmission efficiency is improved, but QoS requirements for services with strict delay requirements cannot be met due to lack of clear allocation rules
Solution Approach 1:
The patent segments the uplink transmission resources by introducing a new parameter 'configuredGrant-Allowed' that divides services into two categories: those allowed to use configured grant resources and those not allowed. This segmentation enables differentiated resource allocation where only suitable services (e.g., eMBB) can use configured grants for high efficiency, while delay-sensitive services (e.g., URLLC) are directed to dynamic grants, thus resolving the contradiction between transmission efficiency and QoS fulfillment.
Solution Approach 2:
The patent applies local quality by configuring different transmission permissions for different logical channels based on their specific QoS requirements. The 'configuredGrant-Allowed' parameter is set individually for each logical channel, allowing the system to optimize resource allocation locally for each service type rather than applying a uniform rule globally. This ensures that each service receives the appropriate resource type matching its characteristics.
2Reliability
If dynamic grant resource is allocated, then QoS for delay-sensitive services can be met, but transmission efficiency decreases due to lack of pre-configured resources
Solution Approach 1:
The patent segments services based on their delay sensitivity characteristics and assigns them to different resource types through the 'configuredGrant-Allowed' parameter. Delay-sensitive services are segmented out from using configured grants and directed to dynamic grants, ensuring they receive the necessary scheduling flexibility to meet delay requirements, while non-delay-sensitive services can utilize configured grants for higher efficiency.
Solution Approach 2:
The patent introduces dynamic control through the network device's ability to configure and update the 'configuredGrant-Allowed' parameter for each logical channel. This dynamic configuration allows the system to adapt resource allocation strategies based on real-time service requirements, enabling services to switch between configured grant and dynamic grant modes as needed to balance efficiency and reliability.
3Adaptability or versatility
If configured grant resource is used without clear service allocation rules, then resource utilization is improved, but conflict with dynamic grant resource occurs leading to QoS violations
Solution Approach 1:
The patent resolves resource conflicts by segmenting the service space using the 'configuredGrant-Allowed' parameter. This clear segmentation rule prevents conflicts between configured grant and dynamic grant resources by ensuring that each service is assigned to the appropriate resource type based on its characteristics, eliminating the ambiguity that leads to QoS violations while maintaining high resource utilization.
Solution Approach 2:
The patent applies preliminary action by pre-configuring the 'configuredGrant-Allowed' parameter for each logical channel before transmission occurs. This advance configuration establishes clear allocation rules that prevent conflicts between resource types, allowing the system to proactively avoid QoS violations rather than reacting to them after conflicts arise.
Data Source
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AI summary
Embodiments of the present disclosure provide a method, an apparatus and a terminal for for service transmission. The method comprises: determining which service is allowed to be transmitted on configured grant resource, according to a first indication information. By determining the service allowed to be transmitted on the configured grant resource, the mapping relationship between service types and uplink grant types is specified.