Method and apparatus for service offloading between different networks

A method for service offloading between different networks, the method comprising:

• sending, by user equipment, a network capability request to an access network discovery and selection function (ANDSF) unit, wherein the network capability request carries a capability attribute set of the user equipment, and is used to instruct the ANDSF unit to perform matching between a capability attribute on a network side and a capability attribute of the user equipment according to preset capability attribute priorities, to determine a preferred capability attribute;
• receiving, by the user equipment, the preferred capability attribute that is fed back by the ANDSF unit, and when the preferred capability attribute comprises a non-seamless concurrency capability attribute or a seamless concurrency capability attribute, reestablishing a service bearer when a preset occasion occurs, wherein the preset occasion comprises that the user equipment detects that a service is paused or a service is stopped, or traffic of a third generation partnership project (3GPP) network decreases to a threshold, wherein the seamless concurrency capability attribute indicates that a service is not interrupted when the service switches between the 3GPP network and a non-3GPP network, and wherein the non-seamless concurrency capability attribute indicates that the service is interrupted when the service switches between the 3GPP network and the non-3GPP network;
• sending, by the user equipment, an inter-system routing policy (ISRP) request to the ANDSF unit by using the 3GPP network, wherein the ISRP request is used to trigger the ANDSF unit to send an instruction for instructing to access the non-3GPP network, and an ISRP offloading policy to the user equipment;
• accessing, by the user equipment, the non-3GPP network according to the instruction for instructing to access the non-3GPP network that is fed back by the ANDSF unit;
• allocating, by the user equipment according to the ISRP offloading policy that is fed back by the ANDSF unit, services that separately camp on the 3GPP network and the non-3GPP network;
• and
• wherein the instruction for instructing to access the non-3GPP network comprises an option that is used to instruct the user equipment to turn on a non-3GPP network opening switch that is used to connect to the non-3GPP network, and hotspot information that is used by the user equipment for scanning and accessing the non-3GPP network.

An apparatus for service offloading between different networks, applied to an access network discovery and selection function (ANDSF) unit, the apparatus comprising:

• a processor;
• and
• a non-transitory computer readable storage medium storing instructions that, when executed by the processor, cause the apparatus to:
• determine a preferred capability attribute according to a network capability request sent by user equipment, and feed back the preferred capability attribute to the user equipment, wherein the preferred capability attribute comprises a non-seamless concurrency capability attribute or a seamless concurrency capability attribute, wherein the seamless concurrency capability attribute indicates that a service is not interrupted when the service switches between a third generation partnership project (3GPP) network and a non-3GPP network, and wherein the non-seamless concurrency capability attribute indicates that the service is interrupted when the service switches between the 3GPP network and the non-3GPP network,
• receive an inter-system routing policy (ISRP) request sent by the user equipment by using the 3GPP network, wherein the ISRP request is determined according to the preferred capability attribute,
• query, according to a cell global identification (CGI) that is carried in the ISRP request, whether the non-3GPP network exists, and
• in response to the non-3GPP network existing, send an instruction for instructing to access the non-3GPP network, and an ISRP offloading policy to the user equipment, wherein the ISRP offloading policy is used to indicate services of the user equipment that separately camp on the 3GPP network and the non-3GPP network and wherein the instruction for instructing to access the non-3GPP network comprises an option that is used to instruct the user equipment to turn on a non-3GPP network opening switch that is used to connect to the non-3GPP network, and non-3GPP network hotspot information that is used by the user equipment for scanning and accessing the non-3GPP network.

An apparatus for service offloading between different networks, applied to user equipment, the apparatus comprising:

• a processor;
• and
• a non-transitory computer readable storage medium storing instructions that, when executed by the processor, cause the apparatus to:
• send a network capability request to an access network discovery and selection function (ANDSF) unit, wherein the network capability request carries a capability attribute set of the user equipment, and is used to instruct the ANDSF unit to perform matching between a capability attribute on a network side and a capability attribute of the user equipment according to preset capability attribute priorities, to determine a preferred capability attribute,
• receive the preferred capability attribute that is fed back by the ANDSF unit,
• when the preferred capability attribute comprises a non-seamless concurrency capability attribute or a seamless concurrency capability attribute, reestablish a service bearer when a preset occasion occurs, wherein the preset occasion comprises that the user equipment detects that a service is paused or a service is stopped, or traffic of a third generation partnership project (3GPP) network decreases to a threshold, wherein the seamless concurrency capability attribute indicates that a service is not interrupted when the service switches between the 3GPP network and a non-3GPP network, and wherein the non-seamless concurrency capability attribute indicates that the service is interrupted when the service switches between the 3GPP network and the non-3GPP network,
• send an inter-system routing policy (ISRP) request to the access network discovery and selection function (ANDSF) unit by using the 3GPP network, wherein the ISRP request is used to trigger the ANDSF unit to send an instruction for instructing to access the non-3GPP network, and an ISRP offloading policy to the user equipment,
• access the non-3GPP network according to the instruction for instructing to access the non-3GPP network that is fed back by the ANDSF unit, and
• allocate, according to the ISRP offloading policy that is fed back by the ANDSF unit, services that separately camp on the 3GPP network and the non-3GPP network, wherein the instruction for instructing to access the non-3GPP network comprises an option that is used to instruct the user equipment to turn on a non-3GPP network opening switch that is used to connect to the non-3GPP network, and hotspot information that is used by the user equipment for scanning and accessing the non-3GPP network.