Abstract: Techniques are provided to enable use of more than two preamble group Bs during random access (RA) for connected UEs. This flexibility is achieved by configuring the active BWP to overlap with the 2-step RA resources on the initial BWP, configuring different sizes of preamble group B in the initial BWP and the active BWP, a allowing connected UEs in the active BWP to use the MsgA PRACH and MsgA PUSCH resources in the initial BWP without switching active BWP.

Abstract: A UE is provided with a dedicated preamble for use in a two-step random access procedure, as well as dedicated, contention-free PUSCH transmission resources for the PUSCH part of msgA. In one embodiment, the base station transmits a partial PUSCH msgA configuration to the UE using dedicated RRC signaling. In another embodiment, the base station transmits a resource index to the UE indicative of a dedicated PUSCH resource for a msgA transmission via dedicated RRC signaling.

Abstract: Embodiments herein relate to for example a method performed by a radio network node for handling a communication of a user equipment, UE, in a wireless communication network. The radio network node transmits a handover command for handing over the UE, from a source cell to a target cell, wherein a security parameter for encrypting data communicated between the radio network node and the UE is retained during the handover. Furthermore, the radio network node maintains a sequence number status for reception and/or transmission of a signalling radio bearer of the UE during the handover from the source cell to the target cell, and/or at a fallback from the target cell to the source cell, when the UE triggers the fallback to the source cell.

Abstract: Embodiments herein relate, for example, to operations performed by a network node for handling communication of a wireless device in a wireless communication network. The network node receives a first preamble associated with a first downlink (“DL”) beam from the wireless device. The network node transmits a random access response (“RAR”) to the wireless device using the first DL beam associated with the first preamble. Responsive to transmitting the RAR using the first DL beam, the network node determines that the wireless device has not received the RAR. Responsive to determining that the wireless device has not received the RAR, the network node transmits the RAR using a second DL beam.

Abstract: An access node of the cellular network determines a correlation of an identifier of a user equipment with an entry of a Pending Interest Table maintained by an Information Centric Networking node. The Pending Interest Table comprises an entry for each data object having a pending Information Centric Networking request at the Information Centric Networking node. Based on the correlation, the access node controls a connection of the user equipment with the cellular network. This may involve deciding whether to release the user equipment to idle mode or paging of the user equipment.

Abstract: Operation in unlicensed spectrum requires Clear Channel Assessment (CCA), where a transmitter must monitor the channel before transmitting, to ensure it is free. An exception is a brief gap that allows for Rx/Tx turn-around, so that an ACK can be transmitted following reception, without performing a new CCA. NR introduces a 2-step Random Access (RA) procedure, where MsgA includes both a PRACH and a PUSCH transmission. To minimize CCA delays in unlicensed spectrum, only those RACH opportunities (ROs) and PUSCH opportunities (POs) that result in a very small delay between the PRACH and PUSCH transmissions of MsgA should be employed. RO configurations are defined for LTE 4-step RA. Embodiments provides methods for selecting which of these be may be shared for 2-step RA, for selecting which should be used in case of collisions, for selecting ROs and POs when the configurations are not shared, and for communicating RO configurations to UEs.

Abstract: A method performed by a wireless device for determining an identity of the wireless device, MsgB RNTI, in a wireless communications network during a random access procedure is provided. The wireless device transmits a random access preamble on a RACH at a random access occasion. It also transmits a message on a PUSCH that corresponds to the random access preamble. Further, the wireless device determines an MsgB RNTI as the sum of a first identity, RA-RNTI, and an offset that is an integer greater than 1, wherein the RA-RNTI is based on a sum comprising terms corresponding to at least the index of a first OFDM symbol, the index of a frequency resource, and the index of a first time slot that identifies the time/frequency resources of the random access occasion.

Abstract: A base station or other network node configures a network transmission in dependence on a directional scanning reception ability of a wireless communication device targeted by the transmission. An example transmission configuration is selecting or restricting which Transmission/Reception Point to use for the transmission or selecting or restricting the beamforming configuration to use for the transmission. The device complements operations in the wireless communication network by indicating its directional scanning reception ability in initial signaling, such as used for random access, or in Radio Resource Control signaling, or both.

Abstract: Systems and methods are disclosed herein that relate to frequency domain resource allocation for interlaced transmission. Embodiments of a method performed by a wireless device are disclosed. In one embodiment, a method performed by a wireless device comprises receiving a reserved resource indicator that indicates an uplink reserved resource pattern. The uplink reserved resource pattern defines at least which subset of uplink Physical Resource Blocks (PRBs) from among a set of allocated uplink PRBs are not available for uplink transmission. In this manner, a low overhead, flexible frequency domain resource allocation scheme for partial interlace transmission is provided.

Abstract: According to some embodiments, a method performed by a network node for updating system information (SI) in unlicensed spectrum includes determining to perform a SI update at a SI modification time, and for each SI update period of a plurality of SI update periods remaining before the SI modification time, transmitting a SI update notification to a wireless device. The SI update notification includes an indication of a SI modification time for when the UE should acquire updated SI. In some embodiments, the method further includes determining that the SI modification time has passed and that the SI update notification was not sent successfully for at least one SI update period of the plurality of SI update periods and transmitting a SI update notification to a wireless device including an indication that the wireless device should acquire updated SI immediately.

Abstract: Various embodiments of the present disclosure provide a method for random access. The method which may be performed by a terminal device comprises receiving resource configuration information from a network node. The method further comprises determining an uplink resource for a feedback to a response message from the network node in a two-step random access procedure, based on the received resource configuration information.

Abstract: Buffer Status Reports (BSR), by which the network is made aware of uplink transmission needs of wirless devices, are specifically enabled to be transmitted using 2-step Random Access (RA), to reduce latency and network resource use. In one embodiment, 2-step RA configurations tailored to B SR-transmissions are introduced. These may, for example, use a subset of the configured resources in the configured 2-step RA resources for B SR. In another embodiment, conditions for triggering B SR over 2-step RA, depending on the traffic, are introduced. For example, the priority or the the delay budget of the traffic may be used to determine whether a BSR over 2-step RA should be triggered. In another embodiment, simplified procedures when receiving the response to MsgA are introduced. These may include, for example, not transmitting a full MsgB, but rather having the UE receive an UL grant.

Abstract: A method of operating a wireless device (300) is described. The method includes providing (1001) a connection with a source access node. The method also includes receiving (1005) a handover command from the source access node while providing the connection with the source access node. The method also includes establishing (1009) a connection with a target access node responsive to receiving the handover command. The method further includes transmitting (1019) uplink data to the source access node after establishing the connection with the target access node. Related wireless devices are also discussed.

Abstract: The present disclosure relates to telecommunications. In one of its aspects, the disclosure concerns a method performed by a User Equipment for handling Packet Data Convergence Protocol (PDCP) Service Data Units (SDUs) when performing a Dual Active Protocol Stack (DAPS) handover of at least one radio bearer from a source access node to a target access node in a wireless communications network. The method comprises obtaining a trigger to perform the handover and establishing a radio connection for the at least one radio bearer with the target access node. An uplink transmission of PDCP SDUs is switched from the source to the target access node over the established radio connection. A radio connection with the source access node is released and a PDCP status report is transmitted to the target access node for each configured radio bearer. The respective PDCP status report indicates PDCP Sequence Numbers (SNs) of missing PDCP SDUs.

Abstract: A wireless device receives downlink control information (DCI) from a network node, determines a physical downlink shared channel (PDSCH) group based on information in the received DCI, and transmits a hybrid automatic repeat request acknowledgement (HARQ-ACK) report to the network node based on the determined PDSCH group.

Abstract: A method for evaluating cell quality includes obtaining cell quality information and determining, based on the cell quality information, a first number, X, of beams whose qualities are above a threshold, T, for a first cell and a second number, Y, of beams whose qualities are above the threshold, T, for a second cell. The method includes complementing a third number, M, of fictive beams to offset a difference between the first number, X, of beams and the second number, Y, of beams, and measuring a first average beam quality, Q1, for the first cell and a second average beam quality, Q2, for the second cell. The method may include a certain number fictive beams with assigned beam quality when calculating cell qualities for cells which are included in comparison.

Abstract: The present disclosure relates to methods and arrangements for configuring radio link measurement reporting in a wireless communication system supporting a plurality of radio link reporting mechanisms. Performed in an access node, the method comprises obtaining (S21) a plurality of radio link reporting configurations, each radio link reporting configuration specifying one or more of the supported radio link reporting mechanisms and wherein at least one of the plurality of radio link reporting configurations specifies a combination of a first and a second radio link reporting mechanism being mutually different. The method further comprises selecting (S22) one radio link reporting configuration from the plurality of obtained configurations; and transmitting (S23) information about the selected radio link reporting configuration to a wireless device.

Abstract: A wireless device (30) receives control information (28) that jointly encodes respective values for two or more channel access parameters. The two or more channel access parameters govern performance by the wireless device (30) of a listen-before-talk, LBT, procedure prior to an uplink transmission (32) in a radio resource allocation (34). In some embodiments, a mapping (40) maps different indices to different combinations of values for the two or more channel access parameters. In this case, the control information (28) may comprise an index mapped by the mapping (40) to one of the different combinations of values for the two or more channel access parameters. Regardless, the wireless device (30) may perform the LBT procedure (or not) according to the received control information (28).

Abstract: The disclosure relates to a method in a wireless device for transmitting an uplink signalling message in a wireless communication network. The wireless device is connected to a first network element over at least a first and a second wireless link. The method comprises determining a transmission mode among alternative transmission modes for transmitting the uplink signalling message. The alternative transmission modes comprise: transmitting on the first wireless link; transmitting on the second wireless link; and transmitting on both the first and the second wireless links. The method also comprises transmitting the uplink signalling message according to the determined transmission mode. The disclosure also relates to a corresponding method performed in the network element, and to the corresponding apparatus.

Abstract: Various embodiments of the present disclosure provide a method for random access. The method which may be performed by a terminal device comprises performing a transmission of a message to a network node in a random access procedure. The transmission of the message may comprise transmission of a preamble and transmission of a payload on a shared channel. The method further comprises receiving a response message from the network node. In response to the response message, the terminal device may perform a retransmission of the payload on the shared channel to the network node according to retransmission configuration.