Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of CG resource handling for SDT. The method comprises receiving, from a second device, information indicative of availability of one or more candidate beams for a subsequent transmission after an initial transmission of a small data transmission procedure; and determining, based on the information, a set of target resources the subsequent transmission. With the solution of the present disclosure, the network may not need to monitor all the beams configured to the UE after the successful reception of the initial CG-SDT transmission, which may simplify the implements of the network and therefore improve the system performance. Meanwhile, the resources configured for multiple beams, which has been released or suspended by a UE, can be used for other UEs to increase resource efficiency given that likely the initial serving beam may remain the strongest throughout the entire SDT procedure.

Abstract: Apparatuses, methods, and computer programs for determining and using a radio network temporary identifier are disclosed. A method includes determining an offset; determining a first radio network temporary identifier based, at least partially, upon the offset; and using the first radio network temporary identifier for subsequently transmitting a message to a device.

Abstract: Embodiments of the present disclosure provide a method and an apparatus for determining a transmission resource for initiating a data transmission. The method (100) performed by a terminal device may comprise: acquiring (S102) a time limit for determining whether a configured transmission resource is within the time limit; and initiating (S104), based on the transmission resource being within the time limit and being valid for a data transmission, the data transmission using the transmission resource in an inactive state. According to embodiments of the present disclosure, the time limit is considered for determining the transmission resource, and thus the data transmission can be performed timely.

Abstract: Various example embodiments relate to methods and apparatus that support beam management in a small data transmission procedure. A terminal device may comprise at least one processor and at least one memory. The at least one memory includes computer program code stored thereon. The at least one memory and the computer program code may be configured to, with the at least one processor, cause the terminal device to report one or more available beams in a small data transmission procedure, receive a beam switching command to switch a serving beam for the small data transmission procedure, and switch the serving beam for the small data transmission procedure to a target beam indicated in the beam switching command.

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer-readable storage medium for controlling DCCH based non-Small Data Transmission (SDT) data arrival. In some example embodiments, a terminal device transmits an indication an availability of non-Small Data Transmission (SDT) data to a network device during a SDT procedure. The terminal device monitors for a response to the indication, and performs an action comprising in response to absence of the response to the indication of the non-SDT data. The action comprises: entering an idle or inactive state and/or initiating a connection setup or resume request to the network device.

Abstract: Example embodiments of the present disclosure provide a solution for handling expiry of at least one time alignment timer (TAT) of multiple timing advance groups (TAGs) associated with a serving cell. In an example method, the terminal device receives determines at least two TAGs for a serving cell, wherein the at least two TAGs comprise a primary TAG and a secondary TAG. The terminal device determines whether at least one TAT of the at least two TAGs has expired and maintain, based on determining that the at least one TAT has expired, one of the primary TAG and the secondary TAG. In this way, only a single TAG is maintained once the terminal device has single TAT/no TAT running removing ambiguities in RA procedure/UL signal transmissions. Since the network is aware of the TAT expiry, it knows behaviour of the terminal device and can act accordingly.

Abstract: Embodiments of the present disclosure relate to methods, devices, apparatuses, and computer readable medium for small data transmission (SDT). A first device, in response to first data to be transmitted via a SDT corresponding to a first set of resources for a random access procedure and a second set of resources for a configured grant procedure, determine a target resource for at least a part of the first data based on a logical channel restriction on the SDT; and transmit, to a second device, at least the part of the first data on the target resource. In this way, the SDT procedure can be performed with logical channel restrictions, which allows a better isolation of services through specific resource selection. The communication efficiency and network performance can also be improved.

Abstract: Described herein is a solution for paging. According to an aspect, there is provided user equipment configured to: determine a user equipment configuration, wherein the user equipment configuration comprises at least one of idle extended discontinuous reception, inactive extended discontinuous reception, or inactive enhanced extended discontinuous reception; determine a network node configuration, wherein the network node configuration defines an allowability status for at least one of idle extended discontinuous reception, inactive extended discontinuous reception, or inactive enhanced extended discontinuous reception; determine a discontinuous reception cycle based at least on the user equipment configuration and the network node configuration; and receive a paging request based on the discontinuous reception cycle.

Abstract: An apparatus receives, from a base station, configuration information configuring two or more beam failure detection reference signal sets for one or more serving cells. At least one of the one or more serving cells is configured with multiple beam failure detection reference signal sets comprising at least a first beam failure detection reference signal set and a second beam failure detection reference signal set. The apparatus may monitor and encode, when the beam failure is detected for the first beam failure detection reference signal set and the second beam failure detection reference signal set, into at least two bitmaps in a medium access control control element, MAC CE, failure status information of the first beam failure detection reference signal set and failure status information of the second beam failure detection reference signal set; and transmit the MAC CE comprising the failure status information.

Abstract: An apparatus is provided comprising at least one processor; and at least one memory including computer program code. The at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to perform transmitting a data transmission while the apparatus is in a radio resource control idle state or radio resource control inactive state; receiving a monitoring configuration for use by the apparatus subsequent to transmission of the data transmission; and monitoring at least one downlink channel based, at least in part, on the received monitoring configuration.

Abstract: An apparatus configured to perform as a user equipment of a first type, receive system information from a cell and determine, based on the system information, that the cell does not support user equipments of the first type, and determine, whether to camp on the cell or to not camp on the cell.

Abstract: An apparatus configured to perform as a user equipment of a first type, determine, based on system information of a cell, whether the cell supports user equipments of the first type, and responsive to determining that the cell does not support the user equipments of the first type, suppress indicating to the cell that the user equipment is of the first type, and provide to the cell an indication of radio access capabilities of the user equipment.

Abstract: Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media for restrictions for a radio access network based notification area (RNA) update procedure during a small data transmission (SDT) procedure. In example embodiments, the first device initiates the SDT procedure. Then, the first device restricts performing of the RNA update procedure during the SDT procedure.

Abstract: The present discloses a device, method, apparatus and computer readable storage medium of scheduling request (SR) and random access (RA) triggering for small data transmission (SDT). In example embodiments, a terminal device receives, from a network device, a configuration of one or more configured grant (CG) resources for a SDT procedure and a list of one or more data radio bearers (DRBs) associated with respective logical channels (LCHs) allowed for SDT over at least one of the one or more CG resources. After the terminal device initiates the SDT procedure in an inactive mode, if the terminal determines that a buffer status report (BSR) is triggered, the terminal device determines whether a configuration of a SR mask is to be applied for a LCH configured for SDT.

Abstract: Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media for restrictions for a radio access network based notification area (RNA) update procedure during a small data transmission (SDT) procedure. In example embodiments, the first device initiates the SDT procedure. Then, the first device restricts performing of the RNA update procedure during the SDT procedure.

Abstract: Systems, methods, apparatuses, and computer program products for control of access for devices with different capabilities are provided. For example, a method may include receiving, from a user equipment, an indication in a random access message. The method may also include determining whether the user equipment has one receive branch or two receive branches based on the indication. The method may further include communicating with the user equipment based on the determination that the user equipment has one receive branch or two receive branches.

Abstract: An example aspect of the present disclosure, there is provided a method including determining, by a user equipment, that the user equipment expects to experience an in-device coexistence problem in a Small Data Transmission, SDT, procedure and performing by the user equipment, based on said determination, an action related to the SDT procedure in the inactive state.

Abstract: A method is provided where handover information about one or more target beams of a target cell is provided. The beam quality of those target beams is determined along with beam quality of one or more other beams of the target cell. Dedicated uplink resources associated with the target beams and shared uplink resources are associated with the other beams. It is determined based on the beam quality which of the target and other beams is to be used to initiate a connection to the target cell.

Abstract: Example embodiments of the present disclosure relate to grant skipping for a small data transmission (SDT) procedure. A first device determines whether data is available for transmission on a grant, the grant being allocated for a SDT procedure established between the first device and a second device. In accordance with a determination that the data is unavailable, the first device determines whether the transmission on the grant is to be skipped. In accordance with a determination that the transmission on the grant is not to be skipped, the first device performs the transmission on the grant to the second device, the transmission conveying a predetermined type of information without conveying the data. Through this solution, the SDT procedure between the devices can be maintained as long as possible, to allow the first device to transmit subsequent data to or receive subsequent data from the second device without initiating a new SDT procedure.

Abstract: Example embodiments of the present disclosure relate to resource selections of random access procedure. According to embodiments of the present disclosure, when a random access procedure is triggered for a certain feature combination, the terminal device determines the random access channel (RACH) partition to use based on a defined priority order of (RACH-partition) features whenever a RACH partition that would have matched the feature combination for which the RA procedure is triggered is not provided in the cell. The priority order could be pre-defined in the standards, provided by the Mobile Network Operators (MNO), or signaled dynamically by the network via system information or dedicated signaling (e.g., radio resource control (RRC) or medium access control (MAC) signaling). In this way, better resource selections may be achieved. Moreover, it does not need to configure resources for any possible combinations of features.