Network Assisted Connection

Abstract

Wireless communications are described for network assisted connection. A wireless device may send an indication of a multi-access packet data unit (PDU) session capability. A computing device may send (e.g., based on the indication) an indication to the wireless device to modify a single-access PDU session to a multi-access PDU session.

1 . A method comprising:
 receiving, by a wireless device via a first access network, an indication of a modification of a single-access packet data unit (PDU) session to a multi-access PDU session via a second access network; and   sending, by the wireless device to a computing device and based on the indication of the modification, an indication whether the multi-access PDU session via the second access network is available for the wireless device.   
     
     
         2 . The method of  claim 1 , wherein sending the indication comprises sending the indication that the multi-access PDU session via the second access network is available for the wireless device. 
     
     
         3 . The method of  claim 1 , wherein sending the indication comprises sending the indication that the multi-access PDU session via the second access network is unavailable for the wireless device. 
     
     
         4 . The method of  claim 1 , wherein the computing device comprises a session management function (SMF). 
     
     
         5 . The method of  claim 1 , further comprising:
 sending, by the wireless device via the first access network and for a registration process, an indicator of radio capability, and   wherein the receiving the indication further comprises receiving, by the wireless device via the first access network and based on the indicator of radio capability, the indication of the modification.   
     
     
         6 . The method of  claim 1 , wherein the receiving the indication comprises receiving a session modification command comprising at least one of:
 an access type of the second access network; or   an identifier of the single-access PDU session.   
     
     
         7 . The method of  claim 1 , further comprising sending, by the wireless device to a session management function (SMF), a session modification command negative acknowledgement indicating that the multi-access PDU session via the second access network is unavailable for the wireless device. 
     
     
         8 . A method comprising:
 sending, by a base station to a wireless device via a first access network, an indication of a modification of a single-access packet data unit (PDU) session to a multi-access PDU session via a second access network;   receiving, from the wireless device, in response to the indication of the modification of the single-access PDU session to the multi-access PDU session, a parameter indicating whether the multi-access PDU session via the second access network is available for the wireless device; and   sending, to a computing device, an acknowledgement for modifying the single-access PDU session to the multi-access PDU session.   
     
     
         9 . The method of  claim 8 , wherein the acknowledgement comprises a session modification command acknowledgement. 
     
     
         10 . The method of  claim 8 , wherein the computing device comprises an access and mobility management function (AMF) device. 
     
     
         11 . The method of  claim 8 , wherein the second access network comprises a non-3GPP access network. 
     
     
         12 . The method of  claim 8 , wherein the sending the indication of the modification of the single-access PDU session to the multi-access PDU session comprises sending a session modification command comprising at least one of:
 an access type of the second access network; or   an identifier of the single-access PDU session.   
     
     
         13 . The method of  claim 8 , wherein the sending the acknowledgement for modifying the single-access PDU session to the multi-access PDU session is based on receiving the parameter indicating whether the multi-access PDU session via the second access network is available for the wireless device. 
     
     
         14 . The method of  claim 8 , wherein the parameter further indicates that the wireless device supports the multi-access PDU session. 
     
     
         15 . A wireless device comprising:
 one or more processors; and   memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
 receive, via a first access network, an indication of a modification of a single-access packet data unit (PDU) session to a multi-access PDU session via a second access network; and 
 send, to a computing device and based on the indication of the modification, an indication whether the multi-access PDU session via the second access network is available for the wireless device. 
   
     
     
         16 . The wireless device of  claim 15 , wherein the instructions, when executed by the one or more processors, cause the wireless device to send to, the computing device, the indication that the multi-access PDU session via the second access network is available for the wireless device. 
     
     
         17 . The wireless device of  claim 15 , wherein the instructions, when executed by the one or more processors, cause the wireless device to send to, the computing device, the indication that the multi-access PDU session via the second access network is unavailable for the wireless device. 
     
     
         18 . The wireless device of  claim 15 , wherein the computing device comprises a session management function (SMF). 
     
     
         19 . The wireless device of  claim 15 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:
 send, via the first access network and for a registration process, an indicator of radio capability, and   receive, via the first access network and based on the indicator of radio capability, the indication of the modification.   
     
     
         20 . The wireless device of  claim 15 , wherein the instructions, when executed by the one or more processors, cause the wireless device to receive a session modification command comprising at least one of:
 an access type of the second access network; or   an identifier of the single-access PDU session.   
     
     
         21 . The wireless device of  claim 15 , wherein the instructions, when executed by the one or more processors, cause the wireless device to send, to a session management function (SMF), a session modification command negative acknowledgement indicating that the multi-access PDU session via the second access network is unavailable for the wireless device. 
     
     
         22 . A base station comprising:
 one or more processors; and   memory storing instructions that, when executed by the one or more processors, cause the base station to:
 send, to a wireless device via a first access network, an indication of a modification of a single-access packet data unit (PDU) session to a multi-access PDU session via a second access network; 
 receive, from the wireless device, in response to the indication of the modification of the single-access PDU session to the multi-access PDU session, a parameter indicating whether the multi-access PDU session via the second access network is available for the wireless device; and 
 send, to a computing device, an acknowledgement for modifying the single-access PDU session to the multi-access PDU session. 
   
     
     
         23 . The base station of  claim 22 , wherein the acknowledgement comprises a session modification command acknowledgement. 
     
     
         24 . The base station of  claim 22 , wherein the computing device comprises an access and mobility management function (AMF) device. 
     
     
         25 . The base station of  claim 22 , wherein the second access network comprises a non-3GPP access network. 
     
     
         26 . The base station of  claim 22 , wherein the instructions, when executed by the one or more processors, cause the base station to send a session modification command comprising at least one of:
 an access type of the second access network; or   an identifier of the single-access PDU session.   
     
     
         27 . The base station of  claim 22 , wherein the instructions, when executed by the one or more processors, cause the base station to send, based on receiving the parameter indicating whether the multi-access PDU session via the second access network is available for the wireless device, the acknowledgement for modifying the single-access PDU session to the multi-access PDU session. 
     
     
         28 . The base station of  claim 22 , wherein the parameter further indicates that the wireless device supports the multi-access PDU session. 
     
     
         29 . A non-transitory computer-readable medium storing instructions that, when executed, configure a wireless device to:
 receive, via a first access network, an indication of a modification of a single-access packet data unit (PDU) session to a multi-access PDU session via a second access network; and   send, to a computing device and based on the indication of the modification, an indication whether the multi-access PDU session via the second access network is available for the wireless device.   
     
     
         30 . The non-transitory computer-readable medium of  claim 29 , wherein the instructions, when executed, further configure the wireless device to send the indication that the multi-access PDU session via the second access network is available for the wireless device. 
     
     
         31 . The non-transitory computer-readable medium of  claim 29 , wherein the instructions, when executed, further configure the wireless device to send the indication that the multi-access PDU session via the second access network is unavailable for the wireless device. 
     
     
         32 . The non-transitory computer-readable medium of  claim 29 , wherein the computing device comprises a session management function (SMF). 
     
     
         33 . The non-transitory computer-readable medium of  claim 29 , wherein the instructions, when executed, further configure the wireless device to:
 send, via the first access network and for a registration process, an indicator of radio capability, and   receive, via the first access network and based on the indicator of radio capability, the indication of the modification.   
     
     
         34 . The non-transitory computer-readable medium of  claim 29 , wherein the instructions, when executed, further configure the wireless device to receive a session modification command comprising at least one of:
 an access type of the second access network; or   an identifier of the single-access PDU session.   
     
     
         35 . The non-transitory computer-readable medium of  claim 29 , wherein the instructions, when executed, further configure the wireless device to send, to a session management function (SMF), a session modification command negative acknowledgement indicating that the multi-access PDU session via the second access network is unavailable for the wireless device. 
     
     
         36 . A non-transitory computer-readable medium storing instructions that, when executed, configure a base station to:
 send, to a wireless device via a first access network, an indication of a modification of a single-access packet data unit (PDU) session to a multi-access PDU session via a second access network;   receive, from the wireless device, in response to the indication of the modification of the single-access PDU session to the multi-access PDU session, a parameter indicating whether the multi-access PDU session via the second access network is available for the wireless device; and   send, to a computing device, an acknowledgement for modifying the single-access PDU session to the multi-access PDU session.   
     
     
         37 . The non-transitory computer-readable medium of  claim 36 , wherein the acknowledgement comprises a session modification command acknowledgement. 
     
     
         38 . The non-transitory computer-readable medium of  claim 36 , wherein the computing device comprises an access and mobility management function (AMF) device. 
     
     
         39 . The non-transitory computer-readable medium of  claim 36 , wherein the second access network comprises a non-3GPP access network. 
     
     
         40 . The non-transitory computer-readable medium of  claim 36 , wherein the instructions, when executed, further configure the base station to send a session modification command comprising at least one of:
 an access type of the second access network; or   an identifier of the single-access PDU session.   
     
     
         41 . The non-transitory computer-readable medium of  claim 36 , wherein the instructions, when executed, further configure the base station to send, based on receiving the parameter indicating whether the multi-access PDU session via the second access network is available for the wireless device, the acknowledgement for modifying the single-access PDU session to the multi-access PDU session. 
     
     
         42 . The non-transitory computer-readable medium of  claim 36 , wherein the parameter further indicates that the wireless device supports the multi-access PDU session.