RAN QoS Flow Handling for PDU Set Delay Budget Decisions
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Solution Overview
Problem
Existing wireless communication technologies lack a clear method for determining whether to apply packet set delay budget (PSDB), packet set error rate (PSER), or packet set integrated handling information (PSIHI) at the protocol data unit (PDU) set level, leading to uncertainty in QoS parameter application by radio access networks (RAN).
Innovation Solution
Implementing methods and devices that determine and apply or reject PSDB, PSER, and PSIHI based on specific thresholds and indication information, using differentiated QoS identifiers (5QIs) and additional information elements to manage QoS flows and rules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If PSDB, PSER, or PSIHI are used as optional QoS parameters for PDU set, then QoS parameter flexibility is improved, but device complexity increases due to lack of clear determination methods
Solution Approach 1:
The patent introduces a new parameter (first indication information) that changes the state of QoS parameter application. This indication information explicitly signals whether PSDB, PSER, or PSIHI should be applied, transforming the optional parameter system into a controlled application system that maintains flexibility while reducing determination complexity
Solution Approach 2:
The patent uses first indication information as an intermediary between the QoS parameter definition and its application. This intermediary carries the determination logic, allowing the system to maintain parameter flexibility while offloading the complex determination process to a simple indication mechanism
2Measurement precision
If multiple QoS parameters (PSDB, PDB, AN PSDB, AN PDB) are applied at different levels, then QoS control precision is improved, but device complexity increases
Solution Approach 1:
The patent segments QoS parameters into different levels (PDU set level and PDU level) with distinct parameters (PSDB/PDB and AN PSDB/AN PDB). This segmentation allows precise control at each level while the indication information mechanism provides a unified determination approach, reducing overall management complexity
Solution Approach 2:
The patent applies different QoS parameters locally at different levels of the protocol stack. PSDB and PSER apply at PDU set level while PDB applies at PDU level, allowing optimized control precision for each level's specific requirements without requiring all parameters everywhere
3Adaptability or versatility
If PSDB and AN PSDB mapped to QoS identifier are applied, then QoS parameter applicability is improved, but the number of required QoS identifiers increases
Solution Approach 1:
The patent makes the QoS identifier universal by enabling it to carry multiple meanings through the first indication information. The same QoS identifier can indicate different QoS parameter applications (with or without PSDB) based on the indication information, eliminating the need for separate identifiers for different parameter combinations
Data Source
AI summary
Embodiments of this application provide an information processing method and a communication device. The method includes: performing, by a first communication device, a first operation, where the first operation includes at least one of the following: applying at least one of the following to a quality of service QoS flow: a packet set delay budget PSDB, an access network AN PSDB, and a discard timer at a protocol data unit set PDU set level; not applying at least one of the following to the QoS flow: the PSDB, the AN PSDB, and the discard timer at the PDU set level; applying at least one of the following to the QoS flow: a packet delay budget PDB, an AN PDB, and a discard timer at a PDU level; applying at least one of a PSDB and an AN PSDB that are mapped to a QoS identifier.