Data offload method and device
AssigneesChina Mobile Group Design Institute Co., Ltd., China Mobile Communications Group Co., Ltd.
InventorsJian Ge, Chengyao Zhang, Hao Wang, Dekun Kong, Xinwei Che
Life of this patent
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Abstract
A data offloading method, performed by an uplink classifier (UL CL) user plane function (UPF), includes: subscribing a general data network name (DNN) and a dedicated DNN for a target user in a unified data management (UDM), configuring an offloading rule, inserting the UL CL UPF a session management function (SMF) when establishing a packet data unit (PDU) session based on the dedicated DNN, offloading data for accessing a public network in an uplink data packet sent by the target user in a non-international roaming scenario a secondary anchor UPF using the UL CL UPF, and offloading data for accessing a user private network to a primary anchor UPF.
Claims15
A data offloading method, performed by an uplink classifier (UL CL) user plane function (UPF) network element in a dual-domain private network system, wherein the dual-domain private network system further comprises a session management function (SMF) network element, a policy control function (PCF) network element for subscribing an offloading rule for a target user, a unified data management (UDM) network element for subscribing a dedicated data network name (DNN) and a general DNN for the target user, and the method comprises:
- in response to receiving an uplink data packet sent by the target user in a non-international roaming scenario, detecting whether the uplink data packet matches at least one of a set of target uniform resource locators (URL) or a set of destination internet protocol (IP) addresses included in the offloading rule, wherein the offloading rule is configured by the SMF network element when the SMF network element inserts the UL CL UPF network element during establishing a packet data unit (PDU) session, wherein the PDU session is established based on the dedicated DNN;
- in response to the uplink data packet matching the at least one of the set of target or the set of destination IP addresses included in the offloading rule, forwarding the uplink data packet to a primary anchor UPF network element to access a user private network, wherein the primary anchor UPF network element is determined based on the dedicated DNN;
- and
- in response to the uplink data packet not matching any of the set of target or the set of destination IP addresses included in the offloading rule, forwarding the uplink data packet to a secondary anchor UPF network element to access a public network, wherein the secondary anchor UPF network element is determined based on the general DNN.
A data offloading method, performed by a session management function (SMF) network element in a dual-domain private network system, wherein the dual-domain private network system comprises an uplink classifier (UL CL) user plane function (UPF) network element, a policy control function (PCF) network element for subscribing an offloading rule for a target user, a unified data management (UDM) network element for subscribing a dedicated data network name (DNN) and a general DNN for the target user, and the method comprises:
- receiving the offloading rule subscribed by the target user from the PCF network element, wherein the offloading rule comprises a remote offloading identifier, and the remote offloading identifier is configured to indicate the SMF network element to insert the UL CL UPF network element while establishing a PDU session for the target user;
- and
- inserting the UL CL UPF network element while establishing the PDU session based on the remote offloading identifier, wherein the PDU session is established using the dedicated DNN.
A computer device, comprising a memory and a processor, wherein the memory has a computer program runnable on the processor stored thereon, and the processor is configured to:
- in response to receiving an uplink data packet sent by the target user in a non-international roaming scenario, detect whether the uplink data packet matches at least one of a set of target uniform resource locators (URL) or a set of destination internet protocol (IP) addresses included in the offloading rule, wherein the offloading rule is configured by the SMF network element when the SMF network element inserts the UL CL UPF network element during establishing a packet data unit (PDU) session, wherein the PDU session is established based on the dedicated DNN;
- in response to the uplink data packet matching the at least one of the set of target or the set of destination IP addresses included in the offloading rule, forward the uplink data packet to a primary anchor UPF network element to access a user private network, wherein the primary anchor UPF network element is determined based on the dedicated DNN;
- and
- in response to the uplink data packet not matching any of the set of target or the set of destination IP addresses included in the offloading rule, forward the uplink data packet to a secondary anchor UPF network element to access a public network, wherein the secondary anchor UPF network element is determined based on the general DNN.
Dependencies are inferred from the claim text.