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: A UE (50) is configured to receive data from a serving node via a downlink carrier and to transmit data to the serving node (30) via selective use of a first uplink carrier and an associated supplementary uplink, SUL, carrier, such that only one of the carriers is used by the UE (50) at any given time. The UE (50) detects (502) a radio link problem for a currently used one of the first uplink carrier and the associated SUL carrier. Responsive to said detecting, the UE (50) transmits (504) a random access preamble to the serving node (30) on the first uplink carrier or the associated SUL carrier. The serving node (30) receives (302) an uplink failure report from the UE (50) and may then release (304) the first uplink carrier or the associated SUL carrier, with respect to the UE (50), in response.

Abstract: The invention refers to a transfer of a User Equipment context from a source secondary network node (110A) to a target secondary network node (110B) that is different than the source secondary network node, wherein the UE (105) is served by a master network node (120) and the source secondary network node (110A), the source secondary network node (110A): transmitting a first message to the target secondary network node (110B), the first message comprising a handover request, receiving a second message comprising configuration data of the target secondary network, and after receiving the second message, transmitting to the master network node a third message comprising the configuration data of the target secondary network node; the invention further referring to a master network node (120): receiving a first message from the source secondary network node, the first message comprising a request to initiate a transfer of the UE context from the source secondary network node to the target secondary network node,

Abstract: Embodiments herein relate to a method, performed by a User Equipment (UE), for handling Radio Resource Management (RRM) measurements for the UE, on a carrier comprising a plurality of Synchronization Sequence Blocks (SSBs). The UE receives, from a network node, an indication of a Measurement Object (MO) pointing to a frequency location of a primary SSB. The UE further performs measurements on the primary SSB based on the indicated MO. Embodiments herein further relate to a method, performed by a network node, for handling RRM measurements for the UE, on a carrier comprising a plurality of SSBs. The network node determines a primary SSB out of the plurality of SSBs on the carrier. The network node further sends, to the UE, an indication of a MO pointing to a frequency location of the primary SSB.

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: 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: This disclosure relates to methods and apparatuses for In-Device Coexistence (IDC) indication. Among other things, the present disclosure presents a method performed by a user equipment (UE). The UE is configured to send 201 an IDC indication message with a same content as in a previously sent IDC indication message if, or when, the UE has performed a handover to another cell (target cell).

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: A technique for barring access of a station in a radio resource control (RRC) connected mode to a radio access network is described. As to one method aspect of the technique, one or more timers are maintained when the station is in the RRC connected mode. Access barring is conditionally performed in the RRC connected mode. A condition for performing the access barring includes expiry of at least one of the one or more timers.

Abstract: According to some embodiments, a wireless device operating in dual connectivity with a first and second network node performs a method comprising establishing an uplink radio connection from the wireless device to the first and second network nodes. The wireless device comprises first MAC and RLC modules for uplink radio communication with the first network node, second MAC and RLC modules for uplink radio communication with the second network node, and a PDCP module for communicating with the first and second RLC modules. The method further comprises communicating data for uplink transmission from the PDCP module to the first RLC module; obtaining an indication to switch transmission of uplink data from the first network node to the second network node; resetting the first RLC module and the first MAC module; and communicating data for uplink transmission from the PDCP module to the second RLC module.

Abstract: According to certain embodiments, a method by a network node is provided for providing access control information for Application-specific Congestion Control for Data Communication (ACDC). The method includes determining ACDC barring information that includes at least one of an indication for each one of a plurality of ACDC categories and a bitmap for a plurality of access classes. The network node transmits the ACDC barring information to a wireless device.

Abstract: This disclosure relates to methods and apparatuses for In-Device Coexistence (IDC) indication. Among other things, the present disclosure presents a method performed by a user equipment (UE). The UE is configured to send 201 an IDC indication message with a same content as in a previously sent IDC indication message if, or when, the UE has performed a handover to another cell (target cell).

Abstract: According to one embodiment, a method of operating a wireless terminal may include configuring a first group of component carriers, and while configured with the first group of component carriers, communicating a first MAC CE including a first bit map having a first bit map size with bits of the first bit map corresponding to respective component carriers of the first group of component carriers. The method may also include configuring a second group of component carriers wherein the first and second groups of component carriers are different. While configured with the second group of component carriers, a second MAC CE may be communicated, wherein the second MAC CE includes a second bit map having a second bit map size with bits of the second bit map corresponding to respective component carriers of the second group of component carriers. Moreover, the first and second bit map sizes may be different.

Abstract: A Radio Network Node (RNN) 106 and a method therein for indicating scheduling of System Information (SI) messages in a wireless communications network 100. The RNN and a wireless device 108 are operating in the wireless communications network. The RNN provides, to the wireless device, a bitmap configuration in a System Information Block (SIB), wherein the bitmap configuration comprises a bitmap and one or more index bits. The bitmap is configured to indicate to the wireless device one or more subframes within one or more radio frames, which one or more subframes are available for transmission of an SI message. Further, the one or more index bits are configured to indicate the one or more radio frames within which the bitmap is to be applied.

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: Embodiments herein disclose a method performed by a wireless device (10) for handling connections in a wireless communication network, wherein the wireless device (10) is configured with a split signaling radio bearer to a first radio network node (12), being a master radio network node, and a second radio network node (13), being a secondary radio network node. The wireless device detects a radio link problem to the first radio network node (12); and transmits a failure report to the first radio network node (12) over the split signaling radio bearer via the second radio network node (13). The failure report indicates the radio link problem to the first radio network node (12).

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 concerns radio communication. More particularly, the present disclosure inter alia introduces the possibility for a user equipment (UE) to apply a temporary DRX cycle during the time period when the UE transitions from an IDLE mode to a CONNECTED mode. Thus, the disclosure presents an example method performed by a UE. The UE is configured to be either in an IDLE mode or in a CONNECTED mode. The method implemented in the UE comprises applying (210) the temporary DRX cycle during the time period when the UE is in transition from the IDLE mode to the CONNECTED mode.

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.