Device, method, apparatus and computer readable storage medium for network slicing
In one embodiment, a Network Slice Instance (NSI) management object corresponding to an NSI managed by a core network is acquired at a wireless access device, the NSI management object having wireless network characteristics associated with the NSI; NSI capability information is advertised to a terminal device in a wireless network provided by the wireless access device, the NSI capability information at least indicating whether the wireless network supports a network slicing function; mapping information on the NSI and a transmission tunnel between the terminal device and the core network is received from the terminal device; and data passing through the transmission tunnel are forwarded in the corresponding NSI based on the mapping information, the NSI management object, and the wireless network characteristics associated with the NSI.
1 . A wireless access device, comprising:
at least one processor; and
at least one memory having computer program codes,
the at least one memory and the computer program codes being configured, together with the at least one processor, to cause the wireless access device to
acquire a Network Slice Instance (NSI) management object corresponding to an NSI managed by a core network, the NSI management object having wireless network characteristics associated with the NSI;
advertise NSI capability information to a terminal device in a wireless network provided to the wireless access device, the NSI capability information at least indicating whether the wireless network supports a network slicing function;
receive, from the terminal device, mapping information on the NSI and a transmission tunnel between the terminal device and the core network; and
forward, based on the mapping information, the NSI management object, and the wireless network characteristics associated with the NSI, data passing through the transmission tunnel in the corresponding NSI.
2 . The wireless access device of claim 1 , wherein the wireless network characteristics comprise at least one of a latency budget, a transmission bandwidth, and a maximum transmission rate associated with the NSI.
3 . The wireless access device of claim 1 , wherein the NSI management object further comprises a Slice/Service Type (NSI-SST) and a Slice Differentiator (NSI-SD) corresponding to the NSI managed by the core network.
4 . The wireless access device of claim 1 , wherein the at least one memory and the computer program codes are configured, together with the at least one processor, to cause the wireless access device to:
reserve, based on the wireless network characteristics, resources of the wireless network for the NSI.
5 . The wireless access device of claim 1 , wherein the at least one memory and the computer program codes are configured, together with the at least one processor, to cause the wireless access device to advertise the NSI capability information by:
receiving a query message based on an Access Network Query Protocol (ANQP) from the terminal device;
generating a query response message based on the ANQP, the query response message at least indicating a number of NSIs supported by the wireless network; and
sending the query response message to the terminal device.
6 . The wireless access device of claim 5 , wherein, in response to the number of the NSIs being zero, then the wireless network does not support the network slicing function, and in response to the number of the NSIs not being zero, then the wireless network supports the network slicing function.
7 . The wireless access device of claim 6 , wherein the NSI capability information indicates that the wireless network supports the network slicing function, and the query response message further comprises a Slice/Service Type (NSI-SST) and a Slice Differentiator (NSI-SD) corresponding to the NSI supported by the wireless network.
8 . The wireless access device of claim 1 , wherein the NSI management object is created, deleted or modified by a network management device.
9 . The wireless access device of claim 1 , wherein the mapping information indicates a mapping relation between identification information based on an Internet Protocol Security (IPsec) and the NSI.
10 . The wireless access device of claim 9 , wherein the mapping information is included in a Quality of Service (QoS) action frame.
11 . The wireless access device of claim 9 , wherein the mapping information is included in a Generic Advertisement Service (GAS) request and a GAS response action frame.
12 . The wireless access device of claim 1 , wherein the data passing through the transmission tunnel comprise at least one of data sent from the terminal device to the core network and data sent from the core network to the terminal device.
13 . The wireless access device of claim 1 , wherein the at least one memory and the computer program codes are configured, together with the at least one processor, to cause the wireless access device to forward the data by:
determining, based on the mapping information and the NSI management object, whether there is an NSI management object corresponding to the transmission tunnel in the wireless access device;
in response to there being a corresponding NSI management object, forwarding the data based on wireless network characteristics associated with the corresponding NSI; and
in response to there being no corresponding NSI management object, forwarding the data based on wireless network characteristics associated with a default NSI in the wireless network.
14 . A terminal device, comprising:
at least one processor; and
at least one memory having computer program codes,
the at least one memory and the computer program codes being configured, together with the at least one processor, to cause the terminal device to
receive, in a wireless network, Network Slice Instance (NSI) capability information advertised by a wireless access device, the NSI capability information at least indicating whether the wireless network supports a network slicing function;
send, to the wireless access device, mapping information on an NSI and a transmission tunnel between the terminal device and a core network, the NSI having associated wireless network characteristics; and
perform at least one of the following via the transmission tunnel:
sending, to the wireless access device, data to be forwarded to the core network in the corresponding NSI; and
receiving, from the wireless access device, data forwarded from the core network in the corresponding NSI.
15 . The terminal device of claim 14 , wherein the wireless network characteristics comprise at least one of a latency budget, a transmission bandwidth, and a maximum transmission rate of data associated with the NSI.
16 . The terminal device of claim 14 , wherein the at least one memory and the computer program codes are configured, together with the at least one processor, to cause the terminal device to receive the NSI capability information by:
sending a query message based on an Access Network Query Protocol (ANQP) to the wireless access device; and
receiving a query response message based on the ANQP from the wireless access device, the query response message at least indicating a number of NSIs supported by the wireless network.
17 . The terminal device of claim 16 , wherein, in response to the number of the NSIs being zero, then the wireless network does not support the network slicing function, and in response to the number of the NSIs not being zero, then the wireless network supports the network slicing function.
18 . The terminal device of claim 17 , wherein the NSI capability information indicates that the wireless network supports the network slicing function, and the query response message further comprises a Slice/Service Type (NSI-SST) and a Slice Differentiator (NSI-SD) corresponding to the NSI supported by the wireless network.
19 . The terminal device of claim 14 , wherein the mapping information indicates a mapping relation between identification information based on an Internet Protocol Security (IPsec) and the NSI.
20 . The terminal device of claim 19 , wherein the mapping information is included in a Quality of Service (QoS) action frame.
21 . The terminal device of claim 19 , wherein the mapping information is included in a Generic Advertisement Service (GAS) request and a GAS response action frame.
22 . The terminal device of claim 14 , wherein the at least one memory and the computer program codes are configured, together with the at least one processor, to cause the terminal device to send the mapping information by:
in response to the transmission tunnel between the terminal device and the core network being established, sending the mapping information to the wireless access device.
23 . The terminal device of claim 14 , wherein the at least one memory and the computer program codes are configured, together with the at least one processor, to cause the terminal device to:
determine, based on the NSI capability information, whether to access the wireless network.
24 . A method for communication, comprising:
acquiring, at a wireless access device, a Network Slice Instance (NSI) management object corresponding to an NSI managed by a core network, the NSI management object having wireless network characteristics associated with the NSI;
advertising NSI capability information to a terminal device in a wireless network provided to the wireless access device, the NSI capability information at least indicating whether the wireless network supports a network slicing function;
receiving, from the terminal device, mapping information on the NSI and a transmission tunnel between the terminal device and the core network; and
forwarding, based on the mapping information, the NSI management object, and the wireless network characteristics associated with the NSI, data passing through the transmission tunnel in the corresponding NSI.