Abstract: An apparatus and method for data transmission are presented.

Abstract: A method and apparatus to perform determining signaling including at least one wake-up signal to indicate an occurrence or a non-occurrence of a paging request associated with a next paging occasion of a network device; and sending the signaling including the at least one wake-up signal toward a network device in a communication network, wherein the at least one wake-up signal is to cause the network device to determine whether to leave at the next paging occasion an energy saving sleep mode to receive the paging request. Further, there is performing receiving by a network device in a communication network at least one wake-up signal to indicate an occurrence or a non-occurrence of a paging request, wherein the at least one wake-up signal is for use by the network device to determine whether to leave at its next paging occasion an energy saving sleep mode.

Abstract: Methods, apparatuses, and computer software products for paging, the method comprises: dividing paging occasions within at least one discontinuous reception cycles or within a paging time window of an extended discontinuous reception cycle into multiple paging occasion subgroups based on user equipment characteristics, and broadcasting the multiple paging occasion subgroups in system information (S101); receiving a paging message from a network element, identifying a paging occasion subgroup corresponding to a user equipment to be paged from the multiple paging occasion subgroups and selecting a paging occasion corresponding to the user equipment from the paging occasion subgroup according to the paging message (S103); transmitting a group based wake up signal associated with the paging occasion prior to the paging occasion if the user equipment currently uses group based wake up signal (S104).

Abstract: Apparatus comprising means for performing: performing self-organizing network measurements to generate self-organizing network measurement information; and in response to determining that the apparatus has user data to transmit to a base station, determining whether the self-organizing network measurement information can be accommodated in a message together with the user data.

Abstract: Methods and apparatus, including computer program products, are provided for user-plane switching of traffic for dual connectivity. In some example embodiments, there is provided a method. The method may include receiving, at a serving gateway, an indication to persist a first tunnel identifier located at a master base station, while the serving gateway sends, towards a second tunnel identifier located at a secondary node, user plane traffic for a user equipment in dual connectivity with the master base station and the secondary node; and switching, at the serving gateway, the user plane traffic between the second tunnel identifier and the first tunnel identifier, when the serving gateway receives, via a user plane, an error indication and/or a switch indication. Related apparatus, systems, methods, and articles are also described.

Abstract: An apparatus comprising: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: operate the apparatus in a dual connectivity mode, wherein the apparatus is in communication with a master cell group comprising a primary cell and at least one secondary cell and the apparatus is in communication with a secondary cell group comprising a primary cell and at least one secondary cell; detect a radio link failure between the apparatus and the primary cell of the secondary cell group; provide information based on the radio link failure to the primary cell of the master cell group, the information being that the radio link failure occurred on the secondary cell group while waiting for a prepared conditional cell change from the primary cell of the secondary cell group to be fulfilled.

Abstract: In accordance with example embodiments of the invention there is at least a method and apparatus to perform determining, by a network node of a communication network, for assignment to at least one network device more than one resource configuration comprising a resource configuration for a contention based resource and a further resource configuration for a dedicated resource, wherein the further resource configuration is reserved as a fall back for a case where a data communication using the contention based resource is not successfully decoded by the network node; and communicating between the network node and the at least one network device information comprising the more than one resource configuration for use to communicate the data communication.

Abstract: There is provided an apparatus, said apparatus comprising means for receiving, at a user equipment, a scheduling grant for a first number, M, of transport blocks, wherein the scheduling grant comprises an indication of a second number, N, of transport blocks to be transmitted or received before a time delay, wherein M is greater than 1 and N is less than or equal to M, causing transmission or reception of a first group of N transport blocks and, if N is less than M, after the time delay, causing transmission or reception of a further group of up to N transport blocks followed by the time delay, until M transport blocks are caused to be transmitted or received.

Abstract: A method comprising configuring a narrowband internet of things carrier relative to one or more physical resource blocks of a radio carrier, the one or more physical resource blocks having a bandwidth that is greater than a bandwidth of the narrowband internet of things carrier; and configuring the narrowband internet of things carrier relative to the one or more physical resource blocks such that there is a first guard band between the narrowband internet of things carrier and a first adjacent physical resource block, and a second guard band between the narrowband internet of things carrier and a second adjacent physical resource block.

Abstract: Systems, methods, apparatuses, and computer program products for a modified multi-slot random access channel (RACH) transmission, such as an extended coverage RACH (EC-RACH) transmission, are provided. One method includes transmitting, by a mobile station associated with a network, a dual slot hybrid random access channel including a long burst followed by one access burst or including one access burst followed by one long burst. Two consecutive time slots may be used for the random access channel transmission.

Abstract: In accordance with example embodiments of the invention there is at least a method and apparatus to perform determining, by a network node of a communication network, for assignment to at least one network device more than one resource configuration comprising a resource configuration for a contention based resource and a further resource configuration for a dedicated resource, wherein the further resource configuration is reserved as a fall back for a case where a data communication using the contention based resource is not successfully decoded by the network node; and communicating between the network node and the at least one network device information comprising the more than one resource configuration for use to communicate the data communication.

Abstract: Systems, methods, apparatuses, and computer program products supporting LTE-new radio (NR) interworking are provided. One method includes detecting, by a user equipment (UE) in connected mode and having dual connectivity with a master node and secondary node established, of inactivity for the master node. Based on the detection of the inactivity of the master node, the UE enters into a power saving state. A signaling radio bearer (SRB) of the secondary node is pre-configured prior to the entering into the power saving state. At the same time as entering the power saving state, the UE signals to the secondary node that the UE is entering into the power saving state and activates the signaling radio bearer (SRB) of the secondary node.

Abstract: Methods, apparatuses, and computer program products are disclosed for contention based shared preconfigured uplink resource configuration.

Abstract: Methods, apparatuses, and computer program products are disclosed for contention based shared preconfigured uplink resource configuration.

Abstract: According to an example aspect of the present invention, there is provided a method comprising, determining, by a source base station, a first target cell and a second target cell for a handover of a user equipment, wherein the first target cell and the second target cell are cells of the same target base station, setting, by the source base station, an identifier of a first handover preparation procedure and an identifier of a second handover preparation procedure, wherein the identifier of the first handover preparation procedure is different compared to the identifier of the second handover preparation procedure, initializing, by the source base station, the first handover preparation procedure to the first target cell and the second handover preparation procedure to the second target cell and binding, by the source base station, the identifier of the first handover preparation procedure and the identifier of the second handover preparation procedure.

Abstract: Various communication systems may benefit from improved random access procedures. For example, it may be helpful to improve random access procedure when a network entity does not have any downlink data to transmit. A method, according to certain embodiments, may include receiving at a network entity from a user equipment a short contention resolution identifier. The method may also include transmitting from the network entity to the user equipment downlink control information comprising at least the short contention resolution identifier on a physical downlink control channel.

Abstract: Methods and apparatus, including computer program products, are provided for charging in multi-connectivity systems. In some example embodiments, there may be provided a method that includes marking, by a first base station serving a user equipment, at least one packet to include a first indication indicating that the at least one packet was received directly at the first base station serving the user equipment; and marking, by the first base station, at least one other packet to include a second indication to indicate that the at least one other packet was received via a second base station also serving the user equipment. Related systems, methods, and articles of manufacture are also described.

Abstract: A method and apparatus to determine by a network node of a serving cell of a communication network signaling including at least one parameter indicating that page reception on a paging channel of a neighbor cell can be performed by a network device without system information acquisition by the network device; and send the signaling toward the network device. Further, a method and apparatus to receive by a network device of a communication network from a serving cell signaling including at least one parameter indicating that page reception on a neighbor cell by a network device can be performed by the network device without system information acquisition by the network device; and based on the signaling, listen for a paging message on a paging channel associated with the neighbor cell without system information acquisition.

Abstract: A method and apparatus to perform determining signaling including at least one wake-up signal to indicate an occurrence or a non-occurrence of a paging request associated with a next paging occasion of a network device; and sending the signaling including the at least one wake-up signal toward a network device in a communication network, wherein the at least one wake-up signal is to cause the network device to determine whether to leave at the next paging occasion an energy saving sleep mode to receive the paging request. Further, there is performing receiving by a network device in a communication network at least one wake-up signal to indicate an occurrence or a non-occurrence of a paging request, wherein the at least one wake-up signal is for use by the network device to determine whether to leave at its next paging occasion an energy saving sleep mode.

Abstract: An apparatus comprising at least one processing circuitry, and at least one memory for storing instructions to be executed by the processing circuitry, wherein the at least one memory and the instructions are configured to, with the at least one processing circuitry, cause the apparatus at least: to prepare configuration information regarding cell reselection in a communication network for at least one communication element capable of communicating in a multi-connectivity communication mode, wherein the configuration information comprises at least one preservation scope indication related to at least one cell reselection priority indication which indicates that priority is to be assigned to a first type of cells of the communication network for cell reselection, compared to other types of cells of the communication network, wherein the at least one preservation scope indication indicates at least one cell across which the at least one cell reselection priority indication is to be maintained, and to provide th