The present disclosure provides a method whereby a mobility management entity (MME) in a cellular communication system transmits uplink data, the method comprising: receiving uplink data from a terminal; determining if the received uplink data is an Internet Protocol (IP) packet by examining the uplink data; transmitting the uplink data to a destination node via a packet data network (PDN) if the uplink data is an IP packet; and transmitting the uplink data to the destination node via a service capability exposure function (SCEF) if the uplink data is not an IP packet, wherein the uplink data comprises an indicator for indicating whether the uplink data is an IP packet.

The present disclosure provides a method whereby a mobility management entity (MME) in a cellular communication system transmits uplink data, the method comprising: receiving uplink data from a terminal; determining if the received uplink data is an Internet Protocol (IP) packet by examining the uplink data; transmitting the uplink data to a destination node via a packet data network (PDN) if the uplink data is an IP packet; and transmitting the uplink data to the destination node via a service capability exposure function (SCEF) if the uplink data is not an IP packet, wherein the uplink data comprises an indicator for indicating whether the uplink data is an IP packet.

A session management function (SMF) receives, from an access and mobility management function (AMF): a request to establish at least one packet data unit (PDU) session for a wireless device; and a device type of the wireless device. The SMF sends to a policy control function: a request for at least one charging policy for the at least one PDU session; and the device type received by the SMF from the AMF. The SMF receives, from the policy control function, the at least one charging policy determined based on the device type. The SMF selects a user plane function based on the device type received by the SMF from the AMF. The SMF sends, to the user plane function, reporting rules based on the at least one charging policy.

A session management function (SMF) receives, from an access and mobility management function (AMF): a request to establish at least one packet data unit (PDU) session for a wireless device; and a device type of the wireless device. The SMF sends to a policy control function: a request for at least one charging policy for the at least one PDU session; and the device type received by the SMF from the AMF. The SMF receives, from the policy control function, the at least one charging policy determined based on the device type. The SMF selects a user plane function based on the device type received by the SMF from the AMF. The SMF sends, to the user plane function, reporting rules based on the at least one charging policy.

A communication device, computer program product, and method mitigate interference during mobility management of antenna beam selection. A controller of the communication device determines a first direction to a first downlink from a base station downlink that is beam steered toward the communication device. The controller determines a second direction to a second downlink from the base station that is beam steered toward a second communication device. The controller determines a scan cone of two or more beam entries oriented generally in the first direction and being at least one of angularly narrowed or directed away from the second direction to avoid receiving the second downlink. The controller configures the RF frontend of the communication device with a reduced codebook based on a subset of the two or more beam entries within the scan cone for mobility management of the communication device.

A communication device, computer program product, and method mitigate interference during mobility management of antenna beam selection. A controller of the communication device determines a first direction to a first downlink from a base station downlink that is beam steered toward the communication device. The controller determines a second direction to a second downlink from the base station that is beam steered toward a second communication device. The controller determines a scan cone of two or more beam entries oriented generally in the first direction and being at least one of angularly narrowed or directed away from the second direction to avoid receiving the second downlink. The controller configures the RF frontend of the communication device with a reduced codebook based on a subset of the two or more beam entries within the scan cone for mobility management of the communication device.

Provided are systems and methods for transmitting data over a wireless channel from a data transmitting node to a data receiving node in a communication system. The data transmitting node comprises second-layer processing circuitry for receiving at least one second-layer SDU, to be mapped onto a resource allocated for data transmission, and for generating a second-layer PDU, including the at least one second-layer SDU and at least one second-layer control element, and first-layer processing circuitry for receiving the second-layer PDU generated by the second-layer processing circuitry and for mapping the second-layer PDU onto the resource allocated for data transmission. The data receiving node comprises first-layer processing circuitry for de-mapping at least one second-layer PDU, and second layer processing circuitry for receiving and parsing the second-layer PDU demapped by the first-layer processing circuitry, the second-layer PDU including at least one second-layer SDU, and at least one second-layer control element.

Provided are systems and methods for transmitting data over a wireless channel from a data transmitting node to a data receiving node in a communication system. The data transmitting node comprises second-layer processing circuitry for receiving at least one second-layer SDU, to be mapped onto a resource allocated for data transmission, and for generating a second-layer PDU, including the at least one second-layer SDU and at least one second-layer control element, and first-layer processing circuitry for receiving the second-layer PDU generated by the second-layer processing circuitry and for mapping the second-layer PDU onto the resource allocated for data transmission. The data receiving node comprises first-layer processing circuitry for de-mapping at least one second-layer PDU, and second layer processing circuitry for receiving and parsing the second-layer PDU demapped by the first-layer processing circuitry, the second-layer PDU including at least one second-layer SDU, and at least one second-layer control element.

In response to a radio link failure between given user equipment and a source access node of a communication system during a data transfer operation over a control plane, a method is provided for recovering the radio link for the given user equipment through a target access node of the communication system. The radio link recovery is enabled via a mobility management node of the communication system using a non-access stratum security context previously established between the given user equipment and the mobility management node.

A sidelink communication method performed by a UE is provided. The method includes receiving from a base station a message including zone configuration information and resource pool configuration information and selecting a zone type mapped to a speed of the UE among zone types indicated by the zone configuration information. A zone identifier is determined based on configuration information of the selected zone type, the configuration information of the selected zone type being included in the zone configuration information. The sidelink communication is performed using a resource pool mapped to the zone identifier among resource pools indicated by the resource pool configuration information.