Abstract: Various communication systems may benefit from the appropriate selection of aspects of operation of the communication system. For example, certain wireless communication systems, such as fifth generation (5G), long term evolution advanced (LTE-A), and wireless local area network (WLAN) communication systems, may benefit from appropriate random access preamble selection. A method can include determining that a user equipment should consider at least one beam-specific parameter. The method can also include indicating to the user equipment to consider the at least one beam-specific parameter.

Abstract: Embodiments of the present disclosure relate to mechanism for interactions for entering into the sleep mode. According to embodiments of the present disclosure, the network device transmits the information of go-to-sleep, GTS, to the terminal device on a lower layer (for example, the physical layer). The lower protocol layer informs the higher protocol layer (for example, the MAC layer) of the information of GTS. The terminal device determines how to monitor the physical downlink channel based on the information of GTS. Further, the terminal device may switch bandwidth part based on the information of GTS. In this way, the GTS is able to significantly save power.

Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable mediums for beam failure recovery. The method includes detecting a beam failure on a serving cell of the terminal device, the serving cell including at least one of a primary cell and a secondary cell serving the terminal device. The method further includes in response to detecting the beam failure on the serving cell, generating a medium access control, MAC, control element, CE, the MAC CE including a field associated with the serving cell, wherein the field is set to be a predefined value indicating the beam failure. The method further includes transmitting the MAC CE to a network device associated with the serving cell.

Abstract: According to a first embodiment, a method may include determining, by a user equipment, that a secondary cell beam failure has occurred at a medium access control layer. The method may further include determining, by the user equipment, one or more other secondary cell candidates based on at least candidate beam measurements of a primary cell. The method may further include transmitting, by the user equipment, one or more data packets related to one or more selected other secondary cell candidates.

Abstract: Embodiments of the present disclosure relate to handling wake up signaling in discontinuous reception. A method comprises determining, at an apparatus, whether an active time during which the apparatus monitors transmissions from a further apparatus overlaps with at least one occasion for monitoring wake up signaling. The method further comprises in response to the active time overlapping with the at least one occasion, skipping monitoring wake up signaling on the at least one occasion. As such, power consumption for monitoring wake up signaling during the active time can be reduced.

Abstract: Systems, methods, apparatuses, and computer program products for prioritized random access during handover are provided. One method may include transmitting, by a source network node, a handover request to a target network node. The handover request may include an indication of a recognition of prioritized random access for a user equipment. The method may also include receiving an acknowledgement from the target network node, building a reconfiguration message, for the user equipment, comprising a prioritized set of random access parameters, and transmitting, to the user equipment, the reconfiguration message comprising the prioritized set of random access parameters.

Abstract: A method includes determining whether a downlink beam signal is being received from a base station (502); when the downlink beam signal is being received from the base station, determining whether a measurable property of the downlink beam signal does not meet a preselected threshold (504); when the downlink beam signal is not being received from the base station or when the measurable property of the downlink beam signal does not meet the preselected threshold, transmitting a message to the base station indicating that at least one uplink beam corresponding to the downlink beam has failed (506); and receiving a reply message from the base station with information required to determine a new uplink beam (508).

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of resource configuration for transmission of DMRS. The method comprises receiving, from a second device, information associated with a set of resources for monitoring a control channel between the first device and the second device for a Small Data Transmission (SDT) procedure, between the first device and the second device; monitoring the control channel based on the information; and performing the SDT based on a result of the monitoring procedure. In this way, the terminal device may determine a set of resources for the PDCCH monitoring for the SDT and therefore the blocking probability in the common search space can be avoid and the system efficiency can be improved.

Abstract: Example embodiments of the present disclosure relate to reporting beam failure. A terminal device performs beam failure detection on a first number of serving cells configured for the terminal device. The terminal device determines information to at least indicate respective results of the beam failure detection on a second number of serving cells among the first number of serving cells, where the second number is smaller than the first number. The determined information is transmitted by the terminal device to a network device serving the terminal device using a resource allocated for the terminal device. Based on the information, the network device determines an overall result of the beam failure detection performed on the first number of serving cells.

Abstract: An apparatus, comprising at least one processor, and at least one memory storing instructions, the at least one memory and the instructions configured to, with the at least one processor, cause a target node to signal to an anchor node a first information related to a context relocation of a context of a terminal device.

Abstract: In accordance with an example embodiment, there is disclosed a method comprising: receiving, by a user equipment in a wireless network, beam information from a serving cell and each neighboring cell; assessing a beam quality of the serving cell and each neighboring cell from the information; determining a subset of the serving cell and neighboring cells comprising the serving cell and each neighboring cell with a beam quality within a first offset of the serving cell and each neighboring cell with a highest quality beam; ranking each cell of the subset in descending order from highest to lowest quality.

Abstract: Disclosed are example embodiments of methods and apparatuses supporting a small data transmission (SDT) procedure to random access (RA) procedure fallback. A method may comprise initiating a small data transmission (SDT) procedure for transmission of uplink data to a network device, determining if a condition is satisfied, and transitioning from the SDT procedure to another procedure for transmission of the uplink data when the condition is satisfied. The another procedure may be a random access (RA) procedure different from the SDT procedure.

Abstract: Embodiments of the present disclosure relate to recording of failure cancellation. The first device detects a cancellation of a reporting of a failure for a transmission between the first device and a second device. Then, in accordance with a determination that the cancellation of the reporting of the failure is detected, the first device records information concerning the cancellation. As such, the first device is able to provide the recorded information on failure cancellation to the second device when needed.

Abstract: A method is provided including configuring by a first network node (20-S) a timer for a UE (10) which is started when an inactivity criteria is met, upon expiry of the timer, allowing cell reselection for the UE (10) based on a frequency criteria between a first frequency and at least a second frequency; and forwarding the UE context by the first network node (20-S) controlling the first frequency to at least a second network node (20-T) controlling the at least second frequency.

Abstract: Systems, methods, apparatuses, and computer program products for handling data transmission such as non-small data transmission (SDT) in conjunction with SDT. A method may include determining an availability of non-small data transmission, non-SDT, data. The method may also include indicating to a network element, a result of the determining.

Abstract: Embodiments of the present disclosure relate to mobility for small data transmission (SDT) procedure. The first device, which is in an inactive state and served in a first cell of the second device, performs a session of small data transmission between the first device and the second device. The first device determines whether a potential cell reselection criterion is satisfied when the session of small data transmission is ongoing. If a potential cell reselection criterion is satisfied, the first device transmits, to the second device, first information indicating an intention of cell reselection. As such, if the cell reselection happens during SDT procedure, the second device is able to put the first device into either the inactive state or the connected state. Accordingly, already transmitted data is not lost in case cell reselection happens before the session of small data transmission is completed.

Abstract: An apparatus, method and computer program product for: initiating a small data transmission procedure, receiving information relating to a restriction to perform a random access procedure during the small data transmission procedure, and restricting the random access procedure based on the information relating to the restriction.

Abstract: Various communication systems may benefit from improved random access operations. For example, certain embodiments may benefit from improved random access in which multiple bandwidth parts are configured to a user equipment within one cell. A method, in certain embodiments, may include triggering a random access procedure at a user equipment. The method may also include switching at the user equipment from a first uplink bandwidth part that does not support a random access channel to a second uplink bandwidth part that has the random access channel configured after the triggering of the random access procedure. The switching may be autonomously performed by the user equipment. In addition, the method may include performing the random access procedure at the user equipment using the random access channel configured at the second uplink bandwidth part.

Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable storage media for determining a transport block size (TBS) for Contention Free Random Access (CFRA) in a random access procedure. In example embodiments, a CFRA request is transmitted by a terminal device to a network device during a random access procedure. The terminal device receives a random access response to the CFRA request from the network device. The random access response indicates a TBS granted by the network device for use in transmission. Based on the granted TBS, the terminal device transmits, to the network device, a first data block with the granted TBS or a second data block to be transmitted and stored in a buffer. In this way, the data loss may be avoided, and the data transmission efficiency may be improved.

Abstract: Embodiments of the present disclosure relate to methods and devices for transmission by selecting between uplink resources. According to a method implemented by a terminal device in a communication system, a configuration of a first resource is received from a network device, the first resource being a grant-free resource. An uplink grant is received from the network device, indicating a second resource for use in a transmission time interval. The terminal device determines, based on the configuration of the first resource, whether the first resource is available in the transmission time interval. In response to determining that the first resource is available and possibly in response to a predefined condition associated with a logical channel for the terminal device is met, the terminal device transmits uplink data to the network device using the first resource.