User equipment to network relay

A method of wireless communication performed by a network entity, comprising:

• establishing a radio access connection with a remote user equipment (UE) via a relay UE, wherein a radio access connection establishment message associated with establishing the radio access connection is communicated without encapsulation in a sidelink signaling container, wherein the radio access connection establishment message is communicated via an established sidelink unicast link between the remote UE and the relay UE;
• transmitting a radio bearer configuration and an access stratum configuration for one or more bearers via the radio access connection, wherein the access stratum configuration is associated with configuring one or more sidelink access stratum entities of the remote UE and the relay UE, and wherein the access stratum configuration indicates at least a parameter associated with a radio resource control (RRC) state operation;
• and
• receiving or transmitting control-plane or user-plane traffic associated with the remote UE via the one or more bearers based at least in part on the access stratum configuration.

A method of wireless communication performed by a relay user equipment (UE), comprising:

• relaying, via a first signaling radio bearer that is configured with a sidelink logical channel for communication, via an established sidelink unicast link with a remote UE, a radio access connection establishment message, wherein the radio access connection establishment message is associated with establishing a radio access connection between the remote UE and a network entity via the established sidelink unicast link, wherein the radio access connection establishment message is communicated without encapsulation in a sidelink signaling container;
• receiving a sidelink access stratum configuration for one or more bearers of the remote UE that are associated with the radio access connection, wherein the sidelink access stratum configuration is associated with one or more sidelink access stratum entities;
• receiving a radio access stratum configuration for the one or more bearers of the remote UE that are associated with the radio access connection, wherein the radio access stratum configuration is associated with one or more radio access stratum entities associated with the network entity;
• and
• relaying control-plane or user-plane traffic between the remote UE and the network entity via the one or more bearers.

A remote user equipment (UE) for wireless communication, comprising:

• a memory;
• and
• one or more processors coupled to the memory, the one or more processors configured to:
• communicate, without encapsulation in a sidelink signaling container, a radio access connection establishment message with a network entity via a relay UE, wherein the radio access connection establishment message is communicated over a first signaling radio bearer that is configured with a sidelink logical channel for communication via an established sidelink unicast link with the relay UE;
• receive a radio bearer configuration for one or more bearers from the network entity via a radio access connection that is established based at least in part on the radio access connection establishment message;
• receive an access stratum configuration via the radio access connection, wherein the access stratum configuration is associated with configuring one or more sidelink access stratum entities for the one or more bearers;
• and
• receive or transmit control-plane or user-plane traffic via the one or more bearers based at least in part on the access stratum configuration.

A network entity for wireless communication, comprising:

• a memory;
• and
• one or more processors coupled to the memory, the one or more processors configured to:
• establish a radio access connection with a remote user equipment (UE) via a relay UE, wherein a radio access connection establishment message associated with establishing the radio access connection is communicated without encapsulation in a sidelink signaling container, wherein the radio access connection establishment message is communicated via an established sidelink unicast link between the remote UE and the relay UE;
• transmit a radio bearer configuration and an access stratum configuration for one or more bearers via the radio access connection, wherein the access stratum configuration is associated with configuring one or more sidelink access stratum entities of the remote UE and the relay UE, and wherein the access stratum configuration indicates at least a parameter associated with a radio resource control (RRC) state operation;
• and
• receive or transmit control-plane or user-plane traffic associated with the remote UE via the one or more bearers based at least in part on the access stratum configuration.

A relay user equipment (UE) for wireless communication, comprising:

• a memory;
• and
• one or more processors coupled to the memory, the one or more processors configured to:
• relay, via a first signaling radio bearer that is configured with a sidelink logical channel for communication, via an established sidelink unicast link with a remote UE, a radio access connection establishment message, wherein the radio access connection establishment message is associated with establishing a radio access connection between the remote UE and a network entity via the established sidelink unicast link, wherein the radio access connection establishment message is communicated without encapsulation in a sidelink signaling container;
• receive a sidelink access stratum configuration for one or more bearers of the remote UE that are associated with the radio access connection, wherein the sidelink access stratum configuration is associated with one or more sidelink access stratum entities;
• receive a radio access stratum configuration for the one or more bearers of the remote UE that are associated with the radio access connection, wherein the radio access stratum configuration is associated with one or more radio access stratum entities associated with the network entity;
• and
• relay control-plane or user-plane traffic between the remote UE and the network entity via the one or more bearers.