Abstract: According to an embodiment, a method may include receiving, by a target network entity, at least one message from an integrated access and backhaul node. The method may further include receiving at least one handover request. The method may further include associating, based on the at least one message and the at least one handover request, by the target network entity, at least one mobile termination of at least one integrated access and backhaul node with at least one distributed unit of the at least one integrated access and backhaul node.

Abstract: Various communication systems may benefit from the appropriate control of the timing of communication. For example, certain wireless communication systems may benefit from packet data convergence protocol windows, for example in the case of split bearers being in use. A method can include transmitting a plurality of protocol data units over a bearer mapped to a plurality of logical channels. The protocol data units can be transmitted in a radio link control unacknowledged mode. The method can also include managing at least one transmission characteristic of the transmitted plurality of protocol data units.

Abstract: A method for channel signaling is described. The method includes determining (e.g., by a UE) whether at least one DL subframe is a valid reference resource. If the at least one DL subframe is not a valid reference resource, reporting measurements of a DL channel measured during the at least one DL subframe is inhibited. The method may include determining (e.g., by an eNB) whether reporting of the at least one DL subframe of a DL channel is required. If reporting is not required, a message configured to cause the at least one UE to inhibit reporting measurements of the DL channel (e.g., CQI measurements) measured during the at least one DL subframe is sent to the UE. Determining whether the at least one downlink subframe is a valid reference resource is based at least in part on the message. Apparatus and computer readable media are also described.

Abstract: Various example embodiments are disclosed herein. A technique is provided for detecting, by a secondary base station (BS), a trigger condition in a wireless network, the wireless network including a mobile station (MS) that is connected to both a master base station (master BS) and a secondary base station (secondary BS), and sending a protocol data unit (PDU) status report from the secondary BS to the master BS in response to the secondary BS detecting the trigger condition, the PDU status report identifying one or more PDUs or portions thereof for further transmission to the MS.

Abstract: A device communicates with a terminal in association with at least a first other device, using at least two carriers, wherein at least a first carrier towards the terminal is established from the device and at least a second carrier is established towards the terminal from the first other device. The device receives a report indicative of a connection quality of the first carrier, responsive thereto issues a request for handover of the first carrier towards a second device, sends relocation information in relation to the first carrier towards the first other device, and only after sending that relocation information, commands the terminal to perform a handover of the first carrier to the second device. Such device, in cooperation with other devices, accomplishes an optimized handover in terms of a primary component carrier relocation from a serving eNB towards a target eNB, while a secondary component carrier is maintained.

Abstract: There is provided a method comprising: preparing a data packet for transmission on a bearer, wherein at least one of the following is configured for transmission: a first network node and a second network node, checking whether at least one predetermined criterion is met, selecting, based at least partly on the said checking, whether to transmit the data packet via the first network node, via the second network node, or via both the first and the second network nodes, and transmitting the data packet according to the selecting.

Abstract: A device communicates with a terminal in association with at least a first other device, using at least two carriers, wherein at least a first carrier towards the terminal is established from the device and at least a second carrier is established towards the terminal from the first other device. The device receives a report indicative of a connection quality of the first carrier, responsive thereto issues a request for handover of the first carrier towards a second device, sends relocation information in relation to the first carrier towards the first other device, and only after sending that relocation information, commands the terminal to perform a handover of the first carrier to the second device. Such device, in cooperation with other devices, accomplishes an optimized handover in terms of a primary component carrier relocation from a serving eNB towards a target eNB, while a secondary component carrier is maintained.

Abstract: Group acknowledgement of a range of consecutive sequence numbers associated with non-received data. The acknowledgement includes indication of at least one endpoint of the range. It can include, for example, the sequence numbers of the first and last non-received data or the last received data packet. The feedback can refer also to a single sequence number, relating to a single PDU. The triggering of the acknowledgement can be done by conventional gap detection or receiver timers.

Abstract: A method of mobility management in a cellular system includes determining from a first received indication that at least one communication device intends to receive a multimedia broadcast multicast service or is receiving a multimedia broadcast multicast service. The information is sent to the at least one communication device relating to at least one multimedia broadcast multicast service capable cell. The method further includes receiving from the at least one communication device a report including measurement information of the at least one multimedia broadcast multicast service capable cell. The method finally includes initiating selecting at least one cell on at least one carrier for the at least one communication device, the at least one carrier including one or more cells capable of providing a multimedia broadcast multicast service.

Abstract: Method and apparatus for reception of data units in a device by means of a first protocol and a second protocol are disclosed. A control function of the second protocol is informed of interruption in a control function of the first protocol. In response thereto a reordering timer of the second protocol is considered as having expired, and a state variable of the second protocol is updated to equal with a highest received state variable.

Abstract: A method is disclosed for group communication in a communications system, the method including monitoring, in a user terminal, for broadcasted service data on a generic broadcast bearer associated with communication services. In response to receiving an indication of broadcasted service data appearing on the generic broadcast bearer, the user terminal may receive broadcasted service data on the generic broadcast bearer. In response to a separate service-specific broadcast bearer being established for a specific communication service, the user terminal may receive broadcasted service data related to the specific communication service on the service-specific broadcast bearer.

Abstract: Indication of delivery-path information may benefit various communication systems. For example, wireless communication systems may benefit from per-protocol data unit delivery-path indication to data recipient or from setting a timer expiry value dependent on such received information. A method can comprise sending, by a data-sending protocol entity, a control protocol data unit. The control protocol data unit can identify protocol data units destined to a data-receiving protocol entity. The method can also comprise providing in the control protocol data unit, for each of the identified protocol data units, a direct or indirect indication of at least one delay figure of a delivery path chosen for an initial transmission of the identified protocol data unit.

Abstract: There is provided a method comprising: receiving, by a first network node, data packets transmitted by a second network node; if at least one data packet of the data packets is noticed not being available to the first network node, sending an indication to the second network node that the at least one data packet of the data packets is not available to the first network node, and repeating sending the indication until a confirmation message is received, wherein the confirmation message comprises confirmation that the indication is received by the second network node.

Abstract: A method and apparatus can be configured to receive an indication for support for a broadcast service enhancement layer from a first network node. The method may also comprise transmitting the indication for support for the broadcast service enhancement layer to a second network node. The method may also comprise receiving a broadcast service session request message from the second network node. The broadcast service session request message may indicate that a broadcast service session is for a base layer or for the enhancement layer.

Abstract: A technique is provided for sending, by a first base station (BS), a data rate test notification to one or more neighbor BSs, performing, by the first BS, a data rate test between the first BS and the core network, receiving, by the first BS, a data rate reply message from one or more neighbor BSs indicating whether or not the data rate test caused a decrease in the data rate available to the neighbor BS, and reducing, by the first BS, an amount of resources available to the first BS for allocation to one or more bearers if one or more of the data rate reply messages indicate that the data rate test caused a decrease in the data rate available to the neighbor BS.

Abstract: Content service(s) to device(s) is provided. Availability of broadcast transmission of said content is determined after an indication is signaled that a dedicated unicast radio bearer is needed/is not needed for reception of said content. Subsequent to reception of the indication the content is transmitted over a dedicated unicast radio bearer or broadcasting. Transmission of the content can be supported by an indication of a need for a continued network connection for the device even when the amount of unicast traffic over the connection in a core network does not justify maintenance of the connection to cause the core network to refrain from releasing said network connection. Unicasting of content to a device moving from a first to a second cell can be continued based on signaling of a message to a control entity of a second cell, the message providing information of the identity of the service(s).

Abstract: Various communication systems may benefit from appropriate handling of reconfiguration. For example, certain wireless communication systems may benefit from lossless bearer reconfiguration when handling a transition from the user of a longer sequence number to a shorter sequence number. A method can include determining, by a protocol entity, if a next expected highest count value among count values associated with protocol data units received is more than a pre-defined limit ahead of a lowest count value among count values associated with protocol data units expected to be received. The method can also include resetting the next expected highest count value to a new value corresponding to a predefined upper limit, conditional on the determination.

Abstract: A method and apparatus may include configuring a split bearer. The split bearer is configured with a first data path between a user equipment and a first network node, and the split bearer is also configured with a second data path between the user equipment and a second network node. The split bearer is configured for a switching operation. The switching operation includes an operation where data transmission is restricted to be towards only one of the first data path and the second data path. The method also includes first transmitting on the split bearer towards the first data path. The method also includes performing the switching operation. The transmitting towards the first data path is switched to transmitting towards the second data path. The method also includes second transmitting on the split bearer towards the second data path.

Abstract: There is provided a method comprising causing uplink feedback information to be transmitted via a radio interface of a first access point, wherein the uplink feedback information is associated with a protocol entity for downlink data transmission via a radio interface of a second access point only.

Abstract: This document discloses a solution of maintaining service continuity in a multimedia broadcast service provided by a cellular network in a multimedia broadcast service area. A base station may transmit, in at least one cell provided by the base station, control information comprising an information element, wherein the information element may comprise an identifier of the multimedia broadcast service area and an indication that may cause at least one terminal device located in the at least one cell to request the multimedia broadcast service content as a transmission addressed to the at least one terminal device. The at least one terminal device may receive the control information comprising the information element that may cause the at least one terminal device to request the multimedia broadcast service content as the transmission addressed to the at least one terminal device.