Abstract: A method performed in a wireless device for handling connectivity to two network nodes. The method comprises receiving, from a first network node, a radio resource configuration message, the radio resource configuration message indicating a change in configuration of a connection towards a second network node; applying the change in configuration towards the second network node in response to the radio resource configuration message; and initiating a random access procedure towards the second network node after applying the change in configuration. The disclosure relates to corresponding wireless device, and to methods in network nodes, network nodes, computer programs and computer program products.

Abstract: Systems, methods, and apparatus for handling communications relating to suspending a user equipment in a radio access network (RAN) are disclosed. An example method includes receiving, by a user equipment that is operating in a connected state, a radio resource control (RRC) release message. The user equipment determines, based on an indication in the RRC release message, whether to suspend the user equipment to an inactive state or an idle state, the indication comprising a presence or absence a suspend configuration field in the RRC release message. Responsive to determining that the indication is to suspend to an inactive state, the user equipment transitions to the inactive state.

Abstract: A method for dynamic link selection that comprises providing at least two wireless links between one or more network nodes and a wireless device. The at least two wireless links associated with at least two different radio access technologies. The method additionally includes obtaining control data to be sent to a first network node of the one or more network nodes. The control data is associated with a first radio access technology. The method additionally includes selecting one or more wireless links from among the at least two wireless links. The one or more links selected based on a first selection parameter. The one or more selected wireless links are to be used for the transmission of the control data to the first network node. The one or more selected wireless links comprise at least a first wireless link associated with a second radio access technology.

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: According to some embodiments, a method for use in a user equipment (UE) of acquiring system information or a synchronization signal comprises receiving, from a network node, a plurality of subframes. Each subframe includes a repetition of either system information or a synchronization signal. The repetition is divided into a number (N) of transmission blocks in a frequency domain of a first bandwidth (N>1). The method further comprises combining N transmission blocks from one or more repetitions of the respective received plurality of subframes to decode the system information or synchronization signal. The UE may comprise a narrowband wireless device operable to receive a bandwidth less than the first bandwidth, and combining N transmission blocks to decode the system information or synchronization signal may comprise combining at least one transmission block from two or more repetitions of two or more respective subframes of the plurality of subframes.

Abstract: Systems and methods for delivery of on-demand system information in a cellular communications network are disclosed. In some embodiments, a method of operation of a network node comprises transmitting, to a User Equipment (UE), minimum system information including a set of signal quality indication levels and corresponding random access parameter(s) and detecting a random access request from the UE that uses the random access parameter(s) configured for the signal quality indication level that corresponds to a signal quality level measured at the UE. The method further comprises deciding whether to deliver on-demand system information to the UE via a broadcast or dedicated signaling based on the signal quality level measured at the UE, broadcasting on-demand system information upon deciding to deliver on-demand system information via a broadcast, and delivering on-demand system information to the UE via dedicated signaling upon deciding to deliver on-demand system information via dedicated signaling.

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: 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: Embodiments herein relate to a method implemented by a wireless communication device. The wireless communication device transmits data to a radio node of a wireless communication network. The wireless communication device monitors for a positive acknowledgement or a negative acknowledgement of the data from the radio node. The wireless communication device retransmits the data to the radio node when said monitoring indicates reception of a negative acknowledgement of the data. The wireless communication device refrains from retransmitting the data to the radio node when said monitoring indicates reception of a positive acknowledgement of the data. The wireless communication device also refrains from retransmitting the data to the radio node when said monitoring indicates neither reception of a positive acknowledgement of the data nor reception of a negative acknowledgement of the data.

Abstract: A wireless communications device, operating according to a DRX configuration and configured to receive two-step grants for uplink transmissions, determines whether the device has received a first trigger of a two-step grant. The device enters a state in which the device listens on a physical downlink control channel for messages from the network, in response to determining that the device has received the first trigger, without necessarily receiving the second trigger.

Abstract: According to one embodiment, a method may be provided to operate a wireless terminal in communication with a wireless communication network. A first bit map having a first bit map size is received with bits of the first bit map corresponding to respective component carriers of a first group of component carriers and indicating a status of the respective component carriers of the first group. A second bit map having a second bit map size is received with bits of the second bit map corresponding to respective component carriers of a second group of component carriers and indicating a status of the respective component carriers of the second group. Moreover, the first bit map size of the first bit map is different than the second bit map size of the second bit map.

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: The present disclosure provides methods, devices, and systems for signaling of In-Device Coexistence (IDC) problems in uplink (UL) Carrier Aggregation (CA). Embodiments of a method in a User Equipment (UE) in communication with an Evolved Node B (eNB) are disclosed. In some embodiments, the method in the UE comprises sending an IDC indication to the eNB including information of problematic UL CA combinations. In this manner, the eNB is provided an indication from which the eNB can deduce which frequencies need to be avoided for UL CA.

Abstract: Embodiments herein relate to a method implemented by a wireless communication device. The wireless communication device transmits data to a radio node of a wireless communication network. The wireless communication device monitors for a positive acknowledgement or a negative acknowledgement of the data from the radio node. The wireless communication device retransmits the data to the radio node when said monitoring indicates reception of a negative acknowledgement of the data. The wireless communication device refrains from retransmitting the data to the radio node when said monitoring indicates reception of a positive acknowledgement of the data. The wireless communication device also refrains from retransmitting the data to the radio node when said monitoring indicates neither reception of a positive acknowledgement of the data nor reception of a negative acknowledgement of the data.

Abstract: According to one embodiment, a method may be provided to operate a wireless terminal in communication with a wireless communication network. A first bit map having a first bit map size is received with bits of the first bit map corresponding to respective component carriers of a first group of component carriers and indicating a status of the respective component carriers of the first group. A second bit map having a second bit map size is received with bits of the second bit map corresponding to respective component carriers of a second group of component carriers and indicating a status of the respective component carriers of the second group. Moreover, the first bit map size of the first bit map is different than the second bit map size of the second bit map.

Abstract: Methods, systems and network devices for operating a network node to provide dual connectivity in a handover of a user equipment, UE, in a new radio telecommunications system are provided. Methods include sending, from the network node and to a target secondary node, an addition request message to allocate resources for the UE in the handover. Operations include receiving an addition request acknowledgement message from the target secondary node. The addition request acknowledgement message includes a context indication regarding a full radio resource control, RRC, context or a delta RRC context. The delta RRC context includes data that is updated relative to data in a current UE context. Operations include determining, based on context indication, a type of RRC context to provide to the target secondary node.

Abstract: A method of operation of a wireless device in a wireless network includes transmitting a first message to a network node and transmitting a second message to the network node. The second message includes a second portion of an identifier associated with the wireless device and a second portion of an access and mobility management (AMF) identifier (ID) in response to the first message including at least a first portion of the identifier associated with the wireless device and at least a first portion of the AMF ID.

Abstract: Random access preambles (130) are grouped in accordance with one of a plurality of grouping schemes (125). Different grouping schemes (125) are associated with different types of group selection criteria. A wireless device (110) (e.g., a user equipment) determines which one of the plurality of grouping schemes (125) the random access preambles (130) are grouped in accordance with, and selects, from among groups (135) of the random access preambles (130) as defined in accordance with the determined grouping scheme (125), a group (135) based on the type of group selection criteria associated with the determined grouping scheme (125). The wireless device (110) attempts random access to a base station (105) using a random access preamble (120) selected from the selected group (135).

Abstract: A User Equipment context is transferred from a source secondary network node to a target secondary network node. The UE is served by a master network node and the source secondary network node. The source secondary network node transmits, to the target secondary network node, a first message comprising a handover request, and receives a second message comprising configuration data of the target secondary network. After receiving the second message, the source secondary network node transmits, to the master network node, a third message comprising the configuration data of the target secondary network node.

Abstract: A wireless communications device, operating according to a DRX configuration and configured to receive two-step grants for uplink transmissions, determines whether the device has received a first trigger of a two-step grant. The device enters a state in which the device listens on a physical downlink control channel for messages from the network, in response to determining that the device has received the first trigger, without necessarily receiving the second trigger.