Method for dynamically indicating QFI and user equipment

User Equipment (UE), comprising:

• a processor;
• and
• a memory storing instructions, when executed by the processor, cause the processor to obtain a Service Data Adaptation Protocol (SDAP) Service Data Unit (SDU) and a first Quality of Service (QoS) Flow Identity (ID) (QFI) to which the SDAP SDU belongs;
• map the first QFI to a second QFI;
• and
• comprise the second QFI in an SDAP header,
• wherein a number of bits of the first QFI is greater than a number of bits of the second QFI;
• wherein the processor is further configured to:
• when a value of the first QFI is less than a first preset threshold, map the value of the first QFI to a value of the second QFI which is the same as the value of the first QFI;
• when the value of the first QFI is greater than the first preset threshold, map the value of the first QFI to a value of an unmapped vacant position of the second QFI;
• and
• when the value of the first QFI is equal to the first preset threshold, map the value of the first QFI to the value of the second QFI which is the same as the value of the first QFI, or map the value of the first QFI to the value of the unmapped vacant position of the second QFI.

A non-transitory computer storage medium having stored thereon computer-executable instructions that, when executed by a processor, cause the processor to perform a method of for dynamically indicating a Quality of Service (QoS) Flow Identity (ID) (QFI), wherein the method comprises:

• obtaining, by User Equipment (UE), a Service Data Adaptation Protocol (SDAP) Service Data Unit (SDU) and obtaining a first QFI to which the SDAP SDU belongs;
• and
• mapping, by the UE, the first QFI to a second QFI, comprising:
• when a value of the first QFI is less than a first threshold, mapping the value of the first QFI to a value of the second QFI which is the same as the value of the first QFI;
• when the value of the first QFI is greater than the first threshold, mapping the value of the first QFI to a value of an unmapped vacant position of the second QFI;
• and
• when the value of the first QFI is equal to the first threshold, mapping the value of the first QFI to the value of the second QFI which is the same as the value of the first QFI, or mapping the value of the first QFI to the value of the unmapped vacant position of the second QFI;
• and
• comprising the second QFI in an SDAP header,
• wherein a number of bits of the first QFI is greater than a number of bits of the second QFI.