Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless node may receive a mobility history reporting configuration for providing mobility history information associated with a visited cell; and transmit, to a parent node of the wireless node, a mobility history report, containing the mobility history information, based at least in part on the mobility history reporting configuration. Numerous other aspects are provided.

A device may utilize a point-to-point protocol over Ethernet (PPPoE) and a point-to-point protocol (PPP) to register the device with a core network, and may establish a first packet data unit (PDU) session with the core network based on the PPPoE and the PPP. The device may configure the first PDU session, based on the PPPoE and the PPP, to provide a first service, and may generate first keep alive messages to maintain the first PDU session. The device may establish a second PDU session with the core network based on the PPPoE and the PPP, and may configure the second PDU session based on the PPPoE and the PPP, where the second PDU session is configured to provide a second service that is different than the first service. The device may generate second keep alive messages to maintain the second PDU session.

A device may utilize a point-to-point protocol over Ethernet (PPPoE) and a point-to-point protocol (PPP) to register the device with a core network, and may establish a first packet data unit (PDU) session with the core network based on the PPPoE and the PPP. The device may configure the first PDU session, based on the PPPoE and the PPP, to provide a first service, and may generate first keep alive messages to maintain the first PDU session. The device may establish a second PDU session with the core network based on the PPPoE and the PPP, and may configure the second PDU session based on the PPPoE and the PPP, where the second PDU session is configured to provide a second service that is different than the first service. The device may generate second keep alive messages to maintain the second PDU session.

Systems and methods of the present disclosure are directed to a method performed by a User Equipment (UE) for context management in a sidelink relay scenario. The method includes initiating a Radio Access Network (RAN) Notification Area (RNA) update with a managing network node. The method includes sending UE identities for a sidelink relay to the managing network node. The UE identities comprises both a Remote (RM) UE identity of a RM UE in the sidelink relay and a Relay (RL) UE identity of a RL UE in the sidelink relay. The UE is either the RM UE or the RL UE.

Systems and methods of the present disclosure are directed to a method performed by a User Equipment (UE) for context management in a sidelink relay scenario. The method includes initiating a Radio Access Network (RAN) Notification Area (RNA) update with a managing network node. The method includes sending UE identities for a sidelink relay to the managing network node. The UE identities comprises both a Remote (RM) UE identity of a RM UE in the sidelink relay and a Relay (RL) UE identity of a RL UE in the sidelink relay. The UE is either the RM UE or the RL UE.

A communication method includes: receiving, by a terminal device, sub-network information of a RAN sent by a network side device, where the sub-network information is used to indicate at least one RAN sub-network included in the RAN; accessing, by the terminal device, a target RAN sub-network among the at least one RAN sub-network based on a service requirement of the terminal device; and communicating, by the terminal device, with the network side device by using the target RAN sub-network.

A communication method includes: receiving, by a terminal device, sub-network information of a RAN sent by a network side device, where the sub-network information is used to indicate at least one RAN sub-network included in the RAN; accessing, by the terminal device, a target RAN sub-network among the at least one RAN sub-network based on a service requirement of the terminal device; and communicating, by the terminal device, with the network side device by using the target RAN sub-network.

Embodiments of the present invention provide a service processing method and device. The service processing method includes: receiving a first message, where the first message includes first information of a first network slice, a priority corresponding to the first information, second information of a second network slice, and a priority corresponding to the second information; and preferentially processing a service of the high-priority network slice based on the priorities when a service of the first network slice collides with a service of the second network slice.

Embodiments of the present invention provide a service processing method and device. The service processing method includes: receiving a first message, where the first message includes first information of a first network slice, a priority corresponding to the first information, second information of a second network slice, and a priority corresponding to the second information; and preferentially processing a service of the high-priority network slice based on the priorities when a service of the first network slice collides with a service of the second network slice.

An access and mobility management function (AMF) receives, from a wireless device, a request to establish a session. A control plane cellular internet of things (CIoT) indication requesting discovery of a session management function (SMF) that supports exchange of user data between the wireless device and the SMF using a non-access stratum message is sent to a network repository function (NRF). An identifier of the SMF is received from the NRF. A request to establish the session for CIoT packet transmission is sent to the SMF.