Network access privacy

A method of wireless communications in a network performed by an access and mobility management function (AMF), comprising:

• receiving a registration request message associated with a user equipment (UE), requesting that the UE be registered with a serving network;
• transmitting a first confirmation message, wherein the first confirmation message indicates that a secure connection between the UE and the serving network has been established;
• receiving a secure message from the UE comprising an indication of at least one configured network slice that the UE wants to communicate over, wherein the at least one configured network slice is associated with a privacy flag that is set to a value on the UE indicating that the at least one configured network slice cannot be requested prior to a secure connection being established with the serving network;
• determining updated privacy flag information associated with the at least one configured network slice;
• and
• transmitting a second confirmation message to the UE indicating that the UE is permitted to communicate over the at least one configured network slice, wherein the second confirmation message includes the updated privacy flag information associated with the at least one configured network slice.

A user equipment (UE) configured for wireless communications, comprising:

• a memory comprising executable instructions;
• a processor in data communication with the memory and configured to execute the executable instructions and cause the UE to:
• transmit a registration request message to a serving network to register with the serving network;
• receive a first confirmation message indicating a secure connection with the serving network has been established;
• transmit, after receiving the first confirmation message, a secure message to the serving network comprising an indication of at least one configured network slice that the UE wants to communicate over, wherein the at least one configured network slice is associated with a privacy flag that is set to a value on the UE indicating that the at least one configured network slice cannot be requested prior to a secure connection being established with the serving network;
• and
• receive a second confirmation message from the serving network indicating that the UE is permitted to communicate over the at least one configured network slice.

An access node configured for wireless communications in a network, comprising:

• a memory comprising executable instructions;
• a processor in data communication with the memory and configured to execute the executable instructions and cause the access node to:
• receive a registration request message associated with a user equipment (UE), requesting that the UE be registered with a serving network;
• transmit a first confirmation message, wherein the first confirmation message indicates that a secure connection between the UE and the serving network has been established;
• receive a secure message from the UE comprising an indication of at least one configured network slice that the UE wants to communicate over, wherein the at least one configured network slice is associated with a privacy flag that is set to a value on the UE indicating that the at least one configured network slice cannot be requested prior to a secure connection being established with the serving network;
• determine updated privacy flag information associated with the at least one configured network slice;
• and
• transmit a second confirmation message to the UE indicating that the UE is permitted to communicate over the at least one configured network slice, wherein the second confirmation message includes the updated privacy flag information associated with the at least one configured network slice.

A non-transitory computer-readable medium comprising executable instructions that, when executed by a processor in a user equipment (UE), cause the UE to perform a method of wireless communications, the method comprising:

• transmitting a registration request message to a serving network to register with the serving network;
• receiving a first confirmation message indicating a secure connection with the serving network has been established;
• transmitting, after receiving the first confirmation message, a secure message to the serving network comprising an indication of at least one configured network slice that the UE wants to communicate over, wherein the at least one configured network slice is associated with a privacy flag that is set to a value on the UE indicating that the at least one configured network slice cannot be requested prior to a secure connection being established with the serving network;
• and
• receiving a second confirmation message from the serving network indicating that the UE is permitted to communicate over the at least one configured network slice.

A non-transitory computer-readable medium comprising executable instructions that, when executed by a processor, cause an access and mobility management function (AMF) to perform a method of wireless communications in a network, the method comprising:

• receiving a registration request message associated with a user equipment (UE), requesting that the UE be registered with a serving network;
• transmitting a first confirmation message, wherein the first confirmation message indicates that a secure connection between the UE and the serving network has been established;
• receiving a secure message from the UE comprising an indication of at least one configured network slice that the UE wants to communicate over, wherein the at least one configured network slice is associated with a privacy flag that is set to a value on the UE indicating that the at least one configured network slice cannot be requested prior to a secure connection being established with the serving network;
• determining updated privacy flag information associated with the at least one configured network slice;
• and
• transmitting a second confirmation message to the UE indicating that the UE is permitted to communicate over the at least one configured network slice, wherein the second confirmation message includes the updated privacy flag information associated with the at least one configured network slice.