Systems, devices, and techniques described herein relate to efficient Evolved Packet System (EPS) fallback. A method may include receiving a rejection message that indicates a rejection to set up a call through a 5th Generation (5G) network by a 5G Radio Access Network (RAN). In response to receiving the rejection message, the method may include transmitting a request to establish a dedicated bearer through a 4th Generation (4G) network. A confirmation that the second dedicated bearer has been established through the 4G network may be received within a predetermined time after transmitting the request.

Systems, devices, and techniques described herein relate to efficient Evolved Packet System (EPS) fallback. A method may include receiving a rejection message that indicates a rejection to set up a call through a 5th Generation (5G) network by a 5G Radio Access Network (RAN). In response to receiving the rejection message, the method may include transmitting a request to establish a dedicated bearer through a 4th Generation (4G) network. A confirmation that the second dedicated bearer has been established through the 4G network may be received within a predetermined time after transmitting the request.

A data transmission method includes receiving policy information transmitted by a core network device and related to a Protocol Data Unit (PDU) session, the policy information instructing transmission delay monitoring to be performed on data sub-packets obtained by splitting a data packet of an interactive service. The method further includes, in response to identifying that a data packet transmitted by a previous node is one of the data sub-packets obtained by splitting the data packet of the interactive service, detecting, according to the policy information in a process of transmitting the data sub-packets to a subsequent node, whether transmission of the data sub-packets meets a delay requirement. The method further includes, in response to detecting that the transmission of the data sub-packets does not meet the delay requirement, stopping transmitting remaining data sub-packets obtained by splitting the data packet of the interactive service to the subsequent node.

A data transmission method includes receiving policy information transmitted by a core network device and related to a Protocol Data Unit (PDU) session, the policy information instructing transmission delay monitoring to be performed on data sub-packets obtained by splitting a data packet of an interactive service. The method further includes, in response to identifying that a data packet transmitted by a previous node is one of the data sub-packets obtained by splitting the data packet of the interactive service, detecting, according to the policy information in a process of transmitting the data sub-packets to a subsequent node, whether transmission of the data sub-packets meets a delay requirement. The method further includes, in response to detecting that the transmission of the data sub-packets does not meet the delay requirement, stopping transmitting remaining data sub-packets obtained by splitting the data packet of the interactive service to the subsequent node.

A communication apparatus that operates as an access point in compliance with IEEE 802.11ba and communicates with a WUR (Wake-Up Radio) function for transiting a terminal from a power saving state to a normal state, comprises a collection unit that collects, from another access point, information related to a WUR of the other access point; and a notification unit that notifies the terminal of the information related to the WUR of the other access point collected by the collection unit.

A communication apparatus that operates as an access point in compliance with IEEE 802.11ba and communicates with a WUR (Wake-Up Radio) function for transiting a terminal from a power saving state to a normal state, comprises a collection unit that collects, from another access point, information related to a WUR of the other access point; and a notification unit that notifies the terminal of the information related to the WUR of the other access point collected by the collection unit.

This disclosure relates to techniques for a wireless device to perform low latency communication using historical beam information. The wireless device may establish a radio resource control connection, and may subsequently release the resource control connection. The wireless device may store antenna element and beam information for the resource control connection. The wireless device may determine whether to use the stored antenna element and beam information when establishing another radio resource control connection. If the wireless device determines to do so, the wireless device may use the stored antenna element and beam information when establishing that radio resource control connection.

This disclosure relates to techniques for a wireless device to perform low latency communication using historical beam information. The wireless device may establish a radio resource control connection, and may subsequently release the resource control connection. The wireless device may store antenna element and beam information for the resource control connection. The wireless device may determine whether to use the stored antenna element and beam information when establishing another radio resource control connection. If the wireless device determines to do so, the wireless device may use the stored antenna element and beam information when establishing that radio resource control connection.

A method is disclosed for improved tracking area planning and handling, comprising: assigning a single tracking area code to a plurality of eNodeBs at a messaging concentrator gateway, the messaging concentrator gateway situated in a network between the plurality of eNodeBs and the core network; storing, at the messaging concentrator gateway, at least one indicator of a last known location of a user equipment (UE) other than the single tracking area code; receiving a paging message from the core network at the messaging concentrator gateway for a UE; and performing a paging sequence using the at least one indicator to identify a set of eNodeBs to page the UE, thereby allowing larger tracking area list sizes to be used without increasing signaling traffic between the radio access network and the core network.

A method is disclosed for improved tracking area planning and handling, comprising: assigning a single tracking area code to a plurality of eNodeBs at a messaging concentrator gateway, the messaging concentrator gateway situated in a network between the plurality of eNodeBs and the core network; storing, at the messaging concentrator gateway, at least one indicator of a last known location of a user equipment (UE) other than the single tracking area code; receiving a paging message from the core network at the messaging concentrator gateway for a UE; and performing a paging sequence using the at least one indicator to identify a set of eNodeBs to page the UE, thereby allowing larger tracking area list sizes to be used without increasing signaling traffic between the radio access network and the core network.