name: IP-CAN
full_form: IP-Connectivity Access Network
context: Requirement Name: Charging ID Uniqueness Requirement Reference: TS 32.251 [8], clause 5.1.1 Requirement Description: "Every IP-CAN bearer shall be assigned a unique identity number for billing purposes. (i.e. the Charging Id)" as specified in 3GPP TS 32.251 [8], clause 5.1.1. Note: A charging ID is not assigned to more than one active IP-CAN bearers at the same time. The reuse of Charging ID is possible after an IP-CAN session has been terminated and the Charging ID related to this IP-CAN session has been released. Threat References: TR 33.926 [10], clause B.2.5.1 Failure to assign unique TEID or Charging ID for a session Test Case: Purpose: Verify that the Charging ID value set in the Information Element Bearer Context within a CreateSessionResponse is unique. Pre-Conditions: Test environment with P-GW and S-GW, PCRF. PCRF and S-GW may be real nodes or simulated. The tester is able to trace traffic between the P-GW and the S-GW (real or simulated) Execution Step 1) The tester
description: The IP-Connectivity Access Network (IP-CAN) provides connectivity access for IP-based services. In 3GPP TS 33.250, each IP-CAN bearer is assigned a unique Charging ID for charging and billing purposes.
explanation: The text explicitly states that IP-CAN is a network that facilitates connectivity for IP-based services, aligning with the definition of a telecommunications network.
section_title: 4.2.2.3	Charging ID Uniqueness
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