Abstract: According to an aspect, a UE in an uplink split-bearer configuration is configured to transmit PDUs by a first RLC entity via a first uplink transmission path and/or by a second RLC entity via a second uplink transmission path. The UE determines a total amount of data volume from PDCP data volume and RLC data volume pending for initial transmission in the two RLC entities. The UE decides whether submission of PDCP data volume is allowed to either of the two RLC entities or to only the first RLC entity, based on whether the total amount of data volume meets or exceeds a first threshold. The UE also reports the PDCP data volume to both the first and second uplink transmission paths or only the first uplink transmission path, based on whether the total amount of data volume meets or exceeds a first threshold.

Abstract: A technique for transferring data in a radio communication is described. As to one method aspect of the technique, the data is received in at least two hybrid automatic repeat request (HARQ) processes (580, 582). For each of the at least two HARQ processes (580, 582), an error detection scheme is performed for the received data. For each of the at least two HARQ processes (580, 582), a feedback (596, 598) is sent based on a logical combination (589) of results (585, 587) of the error detection scheme for the at least two HARQ processes (580, 582).

Abstract: The embodiments herein relate to a method in a user equipment (605) for communicating with a base station (603) in a communications network (600). The user equipment (605) is configured to communicate with the base station (603) according to a selectable of at least two user equipment categories. The user equipment (605) selects one of the at least two user equipment categories if information indicating the one of the user equipment categories is received from the base station (603). The user equipment (605) selects a default of the user equipment categories if no information indicating which of the user equipment categories is received from the base station (603). The user equipment (605) determines a soft buffer size according to the selected user equipment category. The user equipment (605) communicates with the base station (603) according to the selected user equipment category and applying the determined soft buffer size.

Abstract: Methods of operation of a wireless device are provided. In particular, Media Access Control (MAC) protocol aspects are disclosed relating to Licensed Assisted Access (LAA) cells and, more generally, to cells of a cellular communications network operating in an unlicensed frequency spectrum. According to one aspect, a method of operation of a wireless device comprises transmitting an Uplink (UL) transmission on a cell for a corresponding UL Hybrid Automatic Repeat Request (HARQ) process, the cell operating in an unlicensed frequency spectrum, and setting a locally maintained status for the UL HARQ process to Acknowledgement (ACK) based on an assumption that the UL transmission was successful.

Abstract: A wireless device 108 and a method for mapping data packets to radio bearers in a wireless communication network 100. A Radio Network Node (RNN) 110 and the wireless device are operating in the wireless communications network. The wireless devices evaluates whether or not a data packet matches a packet filter in a first group of packet filters and/or a packet filter in a second group of packet filters. When the data packet does neither match a packet filter in the first group of packet filters nor a packet filter in the second group of packet filters, the wireless device maps the data packet to a default radio bearer.

Abstract: A base station of a mobile communication network supports continuity of a Multimedia Broadcast Multicast Service, MBMS, for a terminal. The base station receives, from the terminal, an information element informing the base station of a combination of bands, which the terminal supports for carrier aggregation. The terminal supports MBMS reception on any carrier configurable as a serving cell for the terminal according to the information element. The base station derives, from the received information element, MBMS reception capabilities of the terminal. The base station determines a number of carriers, which are configurable by the base station as serving cell of the terminal, such that the terminal is enabled to receive at least one MBMS.

Abstract: The present invention relates to a method in a cellular communication system, for avoiding errors in a HARQ process, wherein an NDI flag is used both for indicating either semi-persistent scheduling, SPS activation or SPS retransmissions, and also for indicating, by toggling of the flag, a new transmission in dynamic scheduling mode. The method comprises the steps of receiving, in a scheduling message, an indication that dynamically scheduled transmission will take place; if a semi persistent resource has occurred for the same HARQ process since a previously received indication for dynamically scheduled transmission, then considering the NDI flag to be toggled regardless of the value of the NDI flag. Thus, if the condition is fulfilled, a UE will always regard the NDI flag as indicating or requesting a new data transmission.

Abstract: An apparatus, system and method for encoding system information from multiple cells and beams in a communication system. In one embodiment, the apparatus is operable in a communication system including a first beam and a second beam, and is configured to construct a system information block for the first beam. The system information block includes a common field having common system information associated with the first beam and the second beam, and a first beam specific field having first beam specific system information indexed to the first beam. The apparatus is also configured to transmit the system information block to a user equipment for access to the communication system.

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: A wireless communication device (16) is configured for use in a wireless communication system. The device (16) in this regard is configured to receive a command (22) that commands the device (16) to perform a link switch (24) from a source link (20A) to a target link (20B) responsive to fulfillment of a condition. The command (22) may indicate a target link configuration (26) relative to a source link configuration. The device (16) is also configured to store information (30) from which the target link configuration (26) indicated by the command (22) is determinable irrespective of any change to the source link configuration occurring after receipt of the command (22). In some embodiments, the device (16) is configured to, responsive to fulfillment of the condition, perform a link switch (24) from the source link (20A) to the target link (20B) using the target link configuration (26) as determined from the stored information (30).

Abstract: The present disclosure generally relates to the field of queue management. More specifically, the present disclosure relates to a technique of adjusting adaptive queue management operation in a wireless communication network. A method embodiment comprises determining (S202), by an access network node (100) of the wireless communication network, whether an increase in capacity for data transmission between the access network node (100) and a wireless communication device (300) is expected, and adjusting (S204), by the access network node (100), AQM operation associated with the access network node (100), if it is determined that an increase in capacity for data transmission between the access network node (100) and the wireless communication device (300) is expected.

Abstract: A method is provided in a receiving node for handling status information of data units transmitted from a sending node to the receiving node over a radio link. The receiving node establishes that a number of data units that has been transmitted by the sending node are missing. The receiving node sends a reduced status message to the sending node over the radio link, which message is reduced such that it comprises the negative acknowledgement for a first part of missing data units and omits negative acknowledgements for the rest of the missing data units. The omitted negative acknowledgement for the rest of the missing data units will not erroneously be interpreted as correctly received data units by the sending node.

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: According to certain embodiments, a method implemented in a wireless device is provided that includes determining that a scheduling request (SR) cannot be transmitted on an uplink during a scheduled SR opportunity. The SR is transmitted in a first transmission opportunity following a partial downlink (DL) subframe from a network node (115).

Abstract: Methods of operation of a wireless device are provided. In particular, Media Access Control (MAC) protocol aspects are disclosed relating to Licensed Assisted Access (LAA) cells and, more generally, to cells of a cellular communications network operating in an unlicensed frequency spectrum. According to one aspect, a method of operation of a wireless device comprises transmitting an Uplink (UL) transmission on a cell for a corresponding UL Hybrid Automatic Repeat Request (HARQ) process, the cell operating in an unlicensed frequency spectrum, and setting a locally maintained status for the UL HARQ process to Acknowledgement (ACK) based on an assumption that the UL transmission was successful.

Abstract: The present invention relates to a transmission of information in a wireless communication network between a radio access node and a relay node, wherein, according to a new ground rule, for each allocated downlink subframe for a downlink transmission from the access node to the relay node, an uplink transmission subframe for an uplink transmission is allocated four transmission time intervals later. A downlink subframe is only allocated when a further subframe of the same transmission time interval for a transmission from the relay node to the user equipment is a subframe of a type that indicates to a user equipment that no data are received beyond a control region of the subframe.

Abstract: A method is provided in a receiving node for handling status information of data units transmitted from a sending node to the receiving node over a radio link. The receiving node establishes that a number of data units that has been transmitted by the sending node are missing. The receiving node sends a reduced status message to the sending node over the radio link, which message is reduced such that it comprises the negative acknowledgement for a first part of missing data units and omits negative acknowledgements for the rest of the missing data units. The omitted negative acknowledgement for the rest of the missing data units will not erroneously be interpreted as correctly received data units by the sending node.

Abstract: Among other things, the method and apparatus examples herein provide a solution to the problems that arise regarding the need for a wireless device (50) to achieve source synchronization in a beam-based system, where the wireless communication network (20) does not define “cells” for connected-mode wireless devices (50). The problems relate to how a wireless device can re-synchronize with its source access node in a beam-based system that mainly relies on self-contained transmissions from transmission points (30) in the network (20). As one example advantage, the contemplated methods and apparatus enable wireless devices (50) to perform measurements to support mobility procedures even when no data transmissions are scheduled.

Abstract: Methods and apparatus for improving the reporting of mobility information are disclosed. An example method, suitable for implementation in a mobile terminal such as an LTE UE, begins with the detecting of a transition from idle state to connected state. The mobile terminal subsequently transmits mobility information to the network in response to or in connection with the transition. The mobility information sent to the network includes one or more of several information elements or information types, including a list of recently visited cells, including information specifying a time-of-stay in each cell, or timestamp information that can be used to derive the mobile terminal's time in each cell. GPS-based speed information or other generic speed information may be included. Complementary methods for implementation in a base station and corresponding apparatus are also disclosed.

Abstract: According to an aspect, a UE in an uplink split-bearer configuration is configured to transmit PDUs by a first RLC entity via a first uplink transmission path and/or by a second RLC entity via a second uplink transmission path. The UE determines a total amount of data volume from PDCP data volume and RLC data volume pending for initial transmission in the two RLC entities. The UE decides whether submission of PDCP data volume is allowed to either of the two RLC entities or to only the first RLC entity, based on whether the total amount of data volume meets or exceeds a first threshold. The UE also reports the PDCP data volume to both the first and second uplink transmission paths or only the first uplink transmission path, based on whether the total amount of data volume meets or exceeds a first threshold.