Abstract: According to certain embodiments, a target network node for communicating with a user equipment (UE) that was previously in communication with a source network node, comprises an interface operably coupled to processing circuitry. The interface is configured to receive a connection resume request from the user equipment, wherein the connection resume request comprises a resume identification associated with the source network node. The processing circuitry is configured to determine that the UE was previously in communication with the source network node. The interface is further configured to transmit the connection resume request to the source network node, receive a radio resource control (RRC) response from the source network node, and forward the RRC response to the UE.

Abstract: A method for establishing a BH RLC channel between a node and a DU. The method includes a CU detecting (s402) a need to establish the BH RLC channel between the node and the DU; and in response to detecting the need to establish the BH RLC channel, the CU sending (s404) to the DU an AP message requesting the DU to setup the BH RLC channel. The AP message comprises: i) a list identifying one or more BH RLC channels to be setup, wherein the list comprises at least one item containing a BH RLC Channel identifier, ID, information element, IE, containing a BH RLC Channel ID identifying the BH RLC channel, or ii) a DRB ID IE containing the BH RLC Channel ID identifying the BH RLC channel.

Abstract: A method performed by a first radio network node for handling communication in a wireless communications network providing, is provided. The wireless communications network comprises the first radio network node (131) and a second radio network node (132) relaying data packets between a central network node (12) and a UE (10). The first radio network node is an intermediate network node between the second radio network node and the central network node. The first radio network node detects (701) congestion over a link towards the second radio network node. Upon detection of the congestion the first radio network node adds a marking in a header in a data packet and transmits (702) the data packet towards the second radio network node.

Abstract: Embodiments include methods in a wireless device. Such methods include, while the wireless device is in an RRC inactive state with respect to a wireless communication network, determining that updates are needed for the wireless device's access stratum (AS) and non-access stratum (NAS). For example, the AS update can be a RAN notification area update (RNAU) and the NAS update can be a tracking area update (TAU). Such methods include transmitting, to the wireless communication network, a request to resume an RRC connected state with the wireless communication network. The request includes a cause indicator that indicates mobility signaling as a cause for resuming the RRC connected state. Such methods also include receiving, from the wireless communication network, a response to the request to resume the RRC connected state and initiating the NAS update based on the response. Other embodiments include wireless devices configured to perform such methods.

Abstract: Systems and methods are disclosed for a host providing an over-the-top service. An example host includes processing circuitry to provide user data associated with the service and a network interface to initiate transmission of the user data from a network node in a cellular network. The network node is configured to provide a Radio Resource Control connection re-establishment message to a user equipment (UE) previously connected to the RAN via Signaling Radio Bearer 1 (SRB1). SRB1 is configured with a New Radio Packet Data Convergence Protocol (PDCP) configuration. After the UE receives the RRC connection re-establishment message, the UE derives security keys. The network node is further configured to re-establish the UE's connection to the RAN, by applying a Long-Term Evolution (LTE) PDCP configuration to SRB1 and applying ciphering using the plurality of derived security keys, and to transmit the user data over the re-established connection.

Abstract: According to an aspect, a wireless device enters an RRC inactive state from a RRC connected state, in response to a message received from the wireless network. The wireless device subsequently transitions from the RRC inactive state to the RRC connected state and resumes one or more measurements according to one or more measurement configurations stored while the wireless device was in the RRC inactive state.

Abstract: Embodiments herein relate to a method, performed by a User Equipment (UE) 120, for handling discontinous reception (DRX) operation. The method comprises applying a delay for at least one action performed as a response to data and/or signaling received by the UE during a predefined first time period after the UE 120 has entered an active state. Embodiments herein further relate to a method, performed by a network node 110, for handling discontinous reception (DRX) operation. The method comprises sending a configuration message to a User Equipment (UE) 120, which message comprises information regarding actions to be delayed by the UE 120.

Abstract: Embodiments include methods in a wireless device. Such methods include, while the wireless device is in a Radio Resource Control (RRC) inactive state with respect to a wireless communication network, determining that a Radio Access Network Notification Area Update (RNAU) is needed. Such methods include evaluating whether there is any cause, other than the determined need for the RNAU, for resuming an RRC connected state with the wireless communication network and transmitting, to the wireless communication network, an RRC Resume Request message comprising a cause indicator indicating a cause for resuming the RRC connected state. The cause indicator indicates an RNAU when there is no cause for resuming the RRC connected state other than the determined need for the RNAU and otherwise indicates a cause other than an RNAU. Other embodiments include wireless devices configured to perform such methods and computer-readable media that store instructions embodying such methods.

Abstract: A method (1300), performed by a wireless device, is disclosed. The method is for managing radio resources in the wireless device and comprises receiving a message configuring a radio bearer for use by the wireless device (1302), checking the message for a ciphering configuration setting enabling or disabling ciphering for the radio bearer (1304), and performing at least one of enabling or disabling ciphering for the radio bearer in accordance with the received message (1306). Also disclosed are a method (1500) performed by a base station for configuring radio resources for use by a wireless device, a wireless device (1400), a user equipment and a base station (1600).

Abstract: A communication system including a host computer is provided herein. The host computer may include processing circuitry configured to provide user data and a communication interface configured to forward the user data to a cellular network for transmission to a user equipment (UE). The cellular network comprises a base station having a radio interface and base station processing circuitry. The base station processing circuitry configured to store a previously active security context for the UE, receive from the UE an RRCResumeRequest message including a security token, generate a temporary security context for the UE, use the temporary security context to verify the security token, send an RRC message to the UE, if no response to the RRC message is received from the UE, discard the temporary security context and retrieve the previously active security context. Thereafter, the base station transmits the user data for a host application.

Abstract: A Radio Access Network (RAN) node instructs a wireless device having a connection to the RAN node to transition from a connected Radio Resource Control (RRC) state to an inactive RRC state in which key information supporting the connection, and a further connection to a Core Network (CN) node serving the wireless device, are maintained. Responsive to the wireless device returning to the connected RRC state, the RAN node requests new key material from the CN node, and replaces the key material supporting the connection with the new key material received from the CN node.

Abstract: A wireless device and method for re-establishing a radio connection in a communications network comprising a first RAT and a different second RAT. The wireless device is operating in a first cell served by a first radio network node operating in the first RAT. When a connection failure with the first cell is detected, the wireless device performs a cell selection and selects a second cell served by a second radio network node operating in the second RAT. The second cell is known by the wireless device to be a candidate for re-establishment. The wireless device determines a first set of parameters to be used as an identifier of the wireless device, wherein the first set of parameters is associated with the first cell. The wireless device transmits, to the second cell, a re-establishment request message comprising the first set of parameters.

Abstract: A wireless communication device (16) is configured for use in a wireless communication system (10). The wireless communication device (16) is configured to receive control signaling (22) that indicates a certain wait time (24) for which the wireless communication device (16) is required to wait before sending a certain control message (20) to network equipment (18). A subset of possible wait times must be indicated by integrity-protected control signaling. The wireless communication device (16) may therefore also be configured to accept or reject the certain wait time (24) as being required before sending the certain control message (20), based on whether the received control signaling (22) was integrity protected and on whether the certain wait time (24) is included in the subset of possible wait times which must be indicated by integrity-protected control signaling.

Abstract: According to an aspect, a wireless device determines, while in an RRC Inactive state, that a Radio Access Network Notification Area Update, RNAU, is needed. The wireless device further evaluates whether there is any other cause for resuming an RRC connected state, in addition to the need for the RNAU. The wireless device transmits an RRC Resume Request message to the network, in response to the determining. The RRC Resume Request message includes a cause indicator indicating an RNAU as a cause for resuming a RRC Connected state in the event that said evaluating identifies no other cause for resuming the RRC connected state.

Abstract: The present disclosure relates in general to cellular radio network communication. In one of its aspects, the technology presented herein concerns a method implemented in a receiver for detecting delayed or lost signaling messages. The signaling messages are receivable both over a Master Node, MN, and a Secondary Node, SN, and detecting delayed or lost signaling messages is based on sequence number. The method comprises detecting a gap in sequence numbers of received signaling messages.

Abstract: According to certain embodiments, a method by a first network node operating as a secondary node for a wireless device having dual connectivity to the first network node and a second network node operating as a source master node is performed during a handover of the wireless device from the second network node operating as the master node to a third network node operating as a target master node. The method includes receiving, from the second network node operating as the source master node, an indication that the first network node is to release one or more resources for serving user plane data to the wireless device. In response to the indication, control plane data is transmitted to the wireless device while ceasing to provide user plane data to the wireless device.

Abstract: Methods, User Equipment, UE, (120) and source network node (111) for re-establishing a Radio Resource Control, RRC, connection to a target cell in a wireless communications network (100), The UE generates a security token using a set of input parameters, and sends a re-establishment request with the security token to a target network node (112) serving the target cell. When receiving the re-establishment 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 re-establish the RRC connection.

Abstract: Systems and methods are disclosed herein for updating stored User Equipment (UE) context information upon re-suspend of the UE in response to a resume request from the UE. In some embodiments, a method in a UE comprises transmitting a Radio Resource Control (RRC) resume request message and, in response to the RRC resume request message, receiving an RRC connection release message with an indication for suspend. The method further comprises, in response to receiving the RRC connection release message with an indication for suspend, replacing information in a stored Access Stratum (AS) context of the UE with new information.

Abstract: Methods and devices of enabling paging of a wireless communication device. In an aspect, a method of a node configured to provide core network user plane functionality in a communications network is provided to enable paging of a wireless communication device being in an idle state.

Abstract: The present invention relates to the coordination of simultaneous multi-RAT camping in in a wireless communication network that provides radio access for a terminal device via at least a first and second wireless radio access operating with different radio access technologies.