Abstract: A network node (20) is configured for use in a wireless communication network (10). The network node (20) configures multiple central unit user planes, CU-UPs, (14-1UP) of a disaggregated radio network node (14) to handle different respective data radio bearers (16-1 . . . 16-N) of a wireless device (12) in multi-connectivity operation, with security processing of user plane traffic by different CU-UPs (14-1UP) being based on different respective security keys (18). In some embodiments, the network node (20) configures different distributed units, DUs, of the disaggregated radio network node (14) to serve different respective ones of the data radio bearers (16-1 . . . 16-N).

Abstract: A network node is configured for transmitting a mobile-terminated early data transmission during a random-access procedure. The network node transmits a page having a contention-free preamble corresponding to an identity associated with a wireless device to be paged. The identity may be a Serving Temporary Mobile Subscriber Identity, S-TMSI, or a resume identity that identifies a suspended Radio Resource Control, RRC, connection. The network node then receives, as part of the random-access procedure, a Msg1 transmission that includes the contention-free preamble. The network node next transmits, as part of the random-access procedure, a Msg2 transmission to the wireless device associated with the identity corresponding to the contention-free preamble. The Msg2 transmission includes a signaling message and downlink data.

Abstract: Exemplary embodiments include methods performed by a network node of a radio access network (RAN). Such embodiments can include establishing a connection with a user equipment (UE) in a cell served by the network node, and determining that the UE is engaged in unauthorized aerial operation. Unauthorized operation can include various UE operational conditions. Such embodiments can also include, based on determining the unauthorized aerial operation, performing at least one of the following operations: restricting the performance of the connection; and sending the UE a message comprising an indication that the connection will be released, and one or more conditions that the UE must meet before attempting to reestablish the connection. Embodiments also include complementary methods performed by one or more core network nodes and/or functions, as well as various network nodes and/or functions that are configured to perform various disclosed methods.

Abstract: A method of operating a radio access network, RAN, node of a wireless communication system, includes preparing, at the RAN node, a handover request to handover a user equipment, UE, to a target node. The handover request includes a user plane integrity protection, UP IP, policy associated with the UE. The method further includes transmitting the handover request to the target node.

Abstract: Systems and methods relating to resuming a suspended connection of a wireless device in a wireless system are disclosed. In some embodiments, a method of operation of a wireless device includes receiving, from a wireless network, a first message that indicates to suspend a connection between the wireless device and the wireless network. Responsive to receiving the first message, the wireless devices stores a wireless device context and enters a suspended mode of operation. Upon an occurrence of a triggering event, the wireless device transmits, to the wireless network, a second message that requests to resume the connection between the wireless device and the wireless network, wherein the second message includes a resume identifier having an identifier of a network node and an identifier of the wireless device. The wireless device receives, from the wireless network, a contention resolution identity Medium Access Control (MAC) control element that includes a portion of the second message.

Abstract: According to some embodiments, a method for early data transmission (EDT) performed by a wireless device comprises: assembling a random access message 3 that includes uplink data for random access EDT; transmitting the random access message 3 to a network node; receiving a random access message 4 from the network node; determining whether the random access message 4 includes a successful integrity check indicating that the network node successfully received the uplink data in random access message 3; and upon determining the random access message 4 includes a successful integrity check, discarding transmission protocol information corresponding to the uplink data in random access message 3.

Abstract: The present invention relates to methods and apparatuses (radio base station) and UE for enabling a UE to perform a random access. According to embodiments of the present invention, an identification number of a dedicated random access preamble is, in a message, transmitted together with information indicating in which channel or channels the preamble is valid for the UE. The UE can then use the received information and based on that information perform a random access.

Abstract: A method for improving data transmission security at a user equipment comprises receiving, from a source network node, a connection release message including instructions for computing a hash value for data to be included in a connection request message; computing the hash value based on the instructions included in the connection release message; calculating a token based on the hash value, and sending, to a target network node, the connection request message including the token. The method may further forward the data from the target network node directly to a gateway after the token has been verified. The method may reduce a signaling overhead by having a fixed-size hash value for data. Furthermore, the method may improve a transmission security by including the token in an RRC message, in which the token is calculated based on the hash value representing the data.

Abstract: A wireless device is configured to determine a Random Access-Radio Network Temporary Identifier (RA-RNTI) for use in a radio network system. The wireless device comprises a first counter configured to be incremented after a pre-defined period of time and to be re-set when having reached a predefined first number, wherein the first counter counts a first count; a second counter configured to be incremented when the first counter reaches the predefined first number and to be re-set when having reached a predefined second number, wherein the second counter counts a second count; and a third counter configured to be incremented when the second counter reaches the predefined second number and to be re-set when having reached a predefined third number, wherein the third counter counts a third count. The wireless device is configured to determine an RA-RNTI at least based on the second count and the third count.

Abstract: Handling of UE capability information in a mobile telecommunications network wherein an eNodeB receives information regarding the UE capability information from the UE and stores the information. The eNodeB sends the UE capability information to the EPC, i.e., to an MME, which receives and stores the UE capability information. When the UE transits from idle to active state, does an initial attach, or when a part of the UE capabilities have changed, it sends a message to the eNodeB regarding the update. The eNodeB forwards the message to the MME, which sends a response associated with the previously stored UE capability information to the eNodeB. The eNodeB decides whether the UE capabilities stored in the MME is up-to-date based on the message from the UE and the response from the MME. If the UE holds updated UE capabilities the eNodeB can request updated UE capability information from the UE.

Abstract: A communication system for resuming a connection comprises a user equipment (UE) and network nodes. A first network node is configured to prepopulate a UE context, and send, to a second network node, the UE context. The second network node is configured to receive, from the first network node, the UE context, and send, to a UE, a resume request message including a freshness parameter and the UE context. The UE is configured to receive, from the second network node, a resume request message including the freshness parameter and the UE context, generate an authentication token based on the freshness parameter and the UE context, and send, to the second network node, a resume response message including the authentication token. The communication system provides a freshness parameter and a prepopulated UE context to secure and facilitate resume procedure against replay attacks.

Abstract: Embodiments include methods for a base station configured to operate in a wireless communication network. Such methods include receiving, from a wireless terminal, a request to resume a suspended connection with the wireless communication network and subsequently transmitting the following messages to the wireless terminal: a connection resume message related to resuming security associated with the suspended connection, and a connection reconfiguration message related to resuming one or more radio bearers associated with the suspended connection. Such methods include selectively receiving, from the wireless terminal, a connection resume complete message and receiving uplink data from the wireless terminal via the one or more resumed radio bearers. Other embodiments include complementary methods for a wireless terminal, as well as base stations and wireless terminals configured to perform such methods.

Abstract: A communication system for enabling/disabling EDT comprises UEs and a network node. The network node is configured to collect measurements regarding cell information, determine whether EDT is allowed to be used by the UEs to transmit data prior to completing an access procedure, and send a message comprising an EDT indication instructing whether EDT is allowed to be used by the UEs. The UE is configured to initiate a transmission to the network node, receive the message comprising the EDT indication, and determine whether EDT is allowed to be used based on the EDT indication. The communication system may be able to enable or disable EDT for the UE based the status of cell, such that the communication system may avoid a resource waste caused by an early indication in Msg1 or a larger uplink grant in Msg2, and further improve the network performance.

Abstract: A network node in a communication network can receive a message from a communication device connected to the network node and operating in the communication network. The message can indicate that the communication device will enter an unavailable state. Responsive to receiving the message, the network node can prevent scheduling of a transmission to the communication device.

Abstract: According to certain embodiments, a method is performed by a network node for secure handling of early data transmission (EDT) during Random Access (RA) procedure before Radio Resource Control (RRC) setup is complete. The method includes receiving, from a wireless device, a RRC message comprising a resume connection request and data. Based on stored security information, the network node determines that the RRC message is suspicious. In response to determining that the RRC message is suspicious, the network node takes an action.

Abstract: Methods, User Equipment (UE), and source network node for resuming a Radio Resource Control (RRC) connection to a target cell in a wireless communications network. The UE generates a security token using a set of input parameters and sends a resuming request with the security token to a target network node serving the target cell. When receiving the resuming request, the source network node generates a security token using a set of input parameters in the same manner as the UE. If the received security token is successfully verified when compared with the generated security token, the source network node provides to the target network node a UE context of the UE, to enable the target network node to resume the RRC connection.

Abstract: A network node (30A, 30B) is configured for use in a wireless communication network (10). The network node (30A, 30B) is configured to acquire radio access capability information (28) of a wireless device (14). The radio access capability information (28) of the wireless device (14) indicates radio access capabilities of the wireless device (14). The network node (30A, 30B) is configured to determine if the wireless communication network (10) received the radio access capability information (28) of the wireless device (14) before access stratum security (24) was activated for the wireless device (14).

Abstract: Systems and methods relating to resuming a suspended connection of a wireless device in a wireless system are disclosed. In some embodiments, a method of operation of a wireless device includes receiving, from a wireless network, a first message that indicates to suspend a connection between the wireless device and the wireless network. Responsive to receiving the first message, the wireless devices stores a wireless device context and enters a suspended mode of operation. Upon an occurrence of a triggering event, the wireless device transmits, to the wireless network, a second message that requests to resume the connection between the wireless device and the wireless network, wherein the second message includes a resume identifier having an identifier of a network node and an identifier of the wireless device. The wireless device receives, from the wireless network, a contention resolution identity Medium Access Control (MAC) control element that includes a portion of the second message.

Abstract: A method in a wireless device is disclosed. The method comprises sending a scheduling request to a network node, and receiving, from the network node in response to the scheduling request, a grant of uplink resources. The method further comprises determining whether the granted uplink resources are at least equal to or larger than the resources required for transmission of both a buffer status report (BSR) and a sidelink BSR, and upon determining that the granted uplink resources are at least equal to or larger than the resources required for transmission of both the BSR and the sidelink BSR, communicating the BSR, and the sidelink BSR to the network node in a single medium access control (MAC) protocol data unit (PDU).

Abstract: Handling of UE capability information in a mobile telecommunications network wherein an eNodeB receives information regarding the UE capability information from the UE and stores the information. The eNodeB sends the UE capability information to the EPC, i.e., to an MME, which receives and stores the UE capability information. When the UE transits from idle to active state, does an initial attach, or when a part of the UE capabilities have changed, it sends a message to the eNodeB regarding the update. The eNodeB forwards the message to the MME, which sends a response associated with the previously stored UE capability information to the eNodeB. The eNodeB decides whether the UE capabilities stored in the MME is up-to-date based on the message from the UE and the response from the MME. If the UE holds updated UE capabilities the eNodeB can request updated UE capability information from the UE.