US2020228960A1PendingUtilityA1

Control plane based small data service

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Assignee: QUALCOMM INCPriority: Sep 18, 2017Filed: Mar 27, 2020Published: Jul 16, 2020
Est. expirySep 18, 2037(~11.1 yrs left)· nominal 20-yr term from priority
Inventors:Santosh Paul AbrahamMiguel GriotSebastian SpeicherHaris ZisimopoulosSoo Bum Lee
H04W 12/033Y02D30/70H04L 67/12H04W 76/27H04W 28/0215H04L 67/14H04W 4/70H04W 48/18H04L 69/04H04W 12/04H04W 52/0229H04W 8/02H04W 80/04H04W 8/18H04W 28/06H04W 12/0013
61
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Claims

Abstract

A core network receives data from at least one of an Application Function (AF), a Data Network (DN), or a User Equipment (UE). A Session Management Function (SMF) processes the data for transport with a low overhead as a session management (SM) payload over a Non Access Stratum (NAS) protocol. The data may be received from an ΔF or DN external to the core network and may be processed to transport the data to the UE based as a SM payload. The data may be received as uplink data from a UE, e.g., in an SM payload. The SMF may processed the SM payload to obtain the data and may transport the data to the AF or DN. The SMF may perform IP header compression, data encryption based on an SMF encryption key, and/or buffering of data for a UE in an idle mode.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method of wireless communication at a user equipment (UE), comprising:
 establishing a session with a session management function (SMF) for communication of user data below a size threshold; and   communicating the user data with at least one of an Application Function (AF) or a Data Network (DN), wherein the user data is communicated with the SMF for transport via an Access and Mobility Management Function (AMF) as a Session Management (SM) payload over a Non Access Stratum (NAS) protocol.   
     
     
         2 . The method of  claim 1 , wherein the communicating the user data comprises:
 receiving the user data from the AF as the SM payload received from the SMF.   
     
     
         3 . The method of  claim 2 , wherein the received user data is encrypted by the AMF. 
     
     
         4 . The method of  claim 1 , wherein the communicating the user data comprises:
 receiving the user data from the DN as the SM payload received from the SMF.   
     
     
         5 . The method of  claim 4 , wherein the received user data is encrypted by the AMF. 
     
     
         6 . The method of  claim 1 , wherein the communicating the user data comprises:
 transmitting the user data to the SMF as the SM payload for transport to the AF.   
     
     
         7 . The method of  claim 1 , wherein the communicating the user data comprises:
 transmitting the user data to the SMF as the SM payload for transport to the DN.   
     
     
         8 . The method of  claim 1 , further comprising:
 receiving an indication of stored user data for the user equipment at the SMF;   transmitting an second indication that the UE is ready to receive the stored user data; and   receiving the user data from the SMF in response to the second indication.   
     
     
         9 . The method of  claim 1 , wherein the user data comprises encrypted data that is encrypted based on an SMF encryption key, wherein the SMF encryption key comprises a shared key between the user equipment and the SMF. 
     
     
         10 . An apparatus for wireless communication at a user equipment (UE), the apparatus comprising:
 a memory; and   at least one processor coupled to the memory and configured to:
 establish a session with a session management function (SMF) for communication of user data below a size threshold; and 
 communicate the user data with at least one of an Application Function (AF) or a Data Network (DN), wherein the user data is communicated with the SMF for transport via an Access and Mobility Management Function (AMF) as a Session Management (SM) payload over a Non Access Stratum (NAS) protocol. 
   
     
     
         11 . The apparatus of  claim 10 , wherein to communicate the user data, the at least one processor is further configured to:
 receive the user data from the AF as the SM payload received from the SMF.   
     
     
         12 . The apparatus of  claim 11 , wherein the received user data is encrypted by the AMF. 
     
     
         13 . The apparatus of  claim 10 , wherein to communicate the user data, the at least one processor is further configured to:
 receive the user data from the DN as the SM payload received from the SMF.   
     
     
         14 . The apparatus of  claim 13 , wherein the received user data is encrypted by the AMF. 
     
     
         15 . The apparatus of  claim 10 , wherein to communicate the user data, the at least one processor is further configured to:
 transmit the user data to the SMF as the SM payload for transport to the AF.   
     
     
         16 . The apparatus of  claim 10 , wherein to communicate the user data, the at least one processor is further configured to:
 transmit the user data to the SMF as the SM payload for transport to the DN.   
     
     
         17 . The apparatus of  claim 10 , wherein the at least one processor is further configured to:
 receive an indication of stored user data for the user equipment at the SMF;   transmit an second indication that the UE is ready to receive the stored user data; and   receive the user data from the SMF in response to the second indication.   
     
     
         18 . The apparatus of  claim 10 , wherein the user data comprises encrypted data that is encrypted based on an SMF encryption key, wherein the SMF encryption key comprises a shared key between the user equipment and the SMF. 
     
     
         19 . An apparatus for wireless communication at a user equipment (UE), comprising:
 means for establishing a session with a session management function (SMF) for communication of user data below a size threshold; and   means for communicating the user data with at least one of an Application Function (AF) or a Data Network (DN), wherein the user data is communicated with the SMF for transport via an Access and Mobility Management Function (AMF) as a Session Management (SM) payload over a Non Access Stratum (NAS) protocol.   
     
     
         20 . The apparatus of  claim 19 , wherein the communicating the user data comprises:
 means for receiving the user data from the AF as the SM payload received from the SMF.   
     
     
         21 . The apparatus of  claim 20 , wherein the received user data is encrypted by the AMF. 
     
     
         22 . The apparatus of  claim 19 , wherein the communicating the user data comprises:
 means for receiving the user data from the DN as the SM payload received from the SMF.   
     
     
         23 . The apparatus of  claim 22 , wherein the received user data is encrypted by the AMF. 
     
     
         24 . The apparatus of  claim 19 , wherein the communicating the user data comprises:
 means for transmitting the user data to the SMF as the SM payload for transport to the AF.   
     
     
         25 . The apparatus of  claim 19 , wherein the communicating the user data comprises:
 means for transmitting the user data to the SMF as the SM payload for transport to the DN.   
     
     
         26 . The apparatus of  claim 19 , further comprising:
 means for receiving an indication of stored user data for the user equipment at the SMF;   means for transmitting an second indication that the UE is ready to receive the stored user data; and   means for receiving the user data from the SMF in response to the second indication.   
     
     
         27 . The apparatus of  claim 19 , wherein the user data comprises encrypted data that is encrypted based on an SMF encryption key, wherein the SMF encryption key comprises a shared key between the user equipment and the SMF. 
     
     
         28 . A non-transitory computer-readable medium storing computer executable code for wireless communication at a user equipment, the code when executed by a processor causes the processor to:
 establish a session with a session management function (SMF) for communication of user data below a size threshold; and   communicate the user data with at least one of an Application Function (AF) or a Data Network (DN), wherein the user data is communicated with the SMF for transport via an Access and Mobility Management Function (AMF) as a Session Management (SM) payload over a Non Access Stratum (NAS) protocol.

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