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 comprises means for determining that there is data to be transmitted to a base station while the apparatus is configured such that a downlink channel which provides scheduling information is not being monitored for a period of time, and determining based on the data to be transmitted if the apparatus is to continue not monitoring the downlink channel for the period time or if the downlink channel is to be monitored before an end of the period of time.

Abstract: A method of beam failure recovery for a serving cell is disclosed. In response to a beam failure on a first bandwidth part in a serving cell, a first device detects a first candidate beam associated with the first bandwidth part (310). In response to a failure of detecting the first candidate beam, the first device switches from the first bandwidth part to a second bandwidth part in the serving cell. The second bandwidth part is configured with at least one reference signal identifying a second candidate beam for recovery from the beam failure (320). The first device detects the second candidate beam based on the at least one reference signal (330). In response to a success of detecting the second candidate beam, the first device transmits information concerning the second candidate beam to a second device for the recovery from the beam failure (340).

Abstract: According to embodiments of the present disclosure, service-based retransmission scheme for uplink in NTN has been proposed, which can support multiple retransmission schemes based on service type for uplink. The network device determines different retransmission schemes based on the QoS requirements of the services. The terminal device selects the retransmission scheme for the service. In this way, the QoS of different service and reliability of MAC CE can be guaranteed.

Abstract: In accordance with an example embodiment of the present invention, a method comprising determining, by a network device of a communication network, a time period for monitoring a random access response; identifying that a wake-up signal occasion for a wakeup signal is overlapping a predetermined time period for the random access response, wherein the predetermined time period comprises the determined time period; and based on the identifying, controlling monitoring of the wake-up signal occasion for a wake-up signal, is disclosed.

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.

Abstract: Embodiments of the present disclosure relate to for inter-CU topology adaptation. A first device establishes a communication interface between the first device and a second device. The first device receives from the second device a handover complete message indicating that a handover of the second device from a third device to the first device is completed. The first device transmits to the second device a command indicating the second device to activate cells configured by the first device.

Abstract: Embodiments of the present disclosure relate to mechanism for sharing HARQ processes by multiple configured grant resources. According to embodiments of the present disclosure, multiple configured grant resources share a common pool of HARQ processes. The network device transmits information concerning the multiple configured grants resources and the common pool HARQ process to the terminal device. Further, for one of the multiple configured grant resources, the terminal device selects a HARQ process from the common pool of HARQ processes. In this way, the throughput has improved and the low latency for high priority data is ensured.

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of the resource selection for the transmission of a pending data unit. The method comprises in accordance with a determination that a data unit is not successfully transmitted using a resource associated with an original Hybrid Automatic Repeat Request, HARQ, process, determining a set of allowed HARQ processes for transmitting the data unit based on at least one condition; selecting a further resource associated with a target HARQ process from the set of allowed HARQ process and transmitting the data unit using the further resource to the second apparatus. In this way, a scheme for conditional HARQ switching is proposed, such that the pending MAC PDU could be retransmitted rapidly. Meanwhile, the retransmission of the pending MAC PDU may not influence other scheduled traffics.

Abstract: Systems, methods, apparatuses, and computer program products for user equipment are provided. A method may include determining to transmit, upon data arrival on a logical channel, the data on a configured grant for the logical channel. The method may also include transmitting, based on the determination, the data on the configured grant to activate a cell. In an example embodiment, the transmission on the configured grant may be performed regardless of a current activation status of the cell for which the configured grant is configured, or a suspend status of the configured grant.

Abstract: Embodiments of the present disclosure relate to for skipping monitoring of downlink control channel in random access. A first device receives from a second device a command indicating the first device to skip monitoring a downlink control channel between the second device and the first device for a time period. In response to the random access procedure being triggered by a first trigger condition, the first device determines whether the time period overlaps with a time window associated with a random access procedure. The first device ignores or performs the command based on the determination.

Abstract: Example embodiments of the present disclosure relate to beam failure recovery mechanism. According to embodiments of the present disclosure, there are provided an improved solution for reporting candidate beams in serving cells. If a beam failure occurs in a serving cell, the first device determines a candidate beam for beam failure recovery from a plurality of beams in the serving cell based on link qualities of the plurality of beams. The first device also determines a resource configuration for a random access for the beam failure recovery for the first device or a resource to be used for the random access, The first device further generates an indication for indicating a characteristic of the candidate beam or a characteristic of a beam for performing the random access, based on at least one of the determined resource configuration or the determined resource. The first device also transmits an identity of the candidate beam and the indication to a second device.

Abstract: Embodiments of the present disclosure relate to contention resolution in random access procedure. An apparatus transmits a random access request to a further apparatus, and the random access request comprises a random access preamble and an identifier of the apparatus for a random access procedure. The apparatus then receives, from the further apparatus, control information on a control channel addressed to the identifier, and the control information indicates at least one of a resource and timing information for communication between the apparatus and the further apparatus. Next, the apparatus determines a result of the random access procedure based at least in part on the control information.

Abstract: A method is provided including determining a mapping of a scheduling request to one or more logical channels configured for a user equipment; in response to a received scheduling request, allocating an uplink radio resource such that a transmission time interval of the allocated uplink radio resource has a length corresponding to length of a transmission time interval configured for the mapped one or more logical channels; and receiving data on the allocated uplink radio resource. A further method includes transmitting a scheduling request mapped to one or more logical channels configured for a user equipment; receiving an allocation of an uplink radio resource wherein a transmission time interval of the allocated uplink radio resource has a length corresponding to length of a transmission time interval configured for the mapped one or more logical channels; and sending data on the allocated uplink radio resource.

Abstract: Various communication systems may benefit from improved quality of service flow. A method may include receiving an indication at a radio resource control entity or service data adaptation protocol layer entity in a radio protocol of a receiver from a transmitter. The indication can include instructions to relocate a quality of service flow from a source to a target data radio bearer. The method may also include starting a timer associated with the quality of service. In addition, the method may include buffering data packets received as part of the quality of service flow from the target data radio bearer during a duration of the timer. Further, the method may include allowing for the transmission of the buffered data packets of the quality of service flow received from the target data radio bearer to an upper protocol layer after the duration of the timer has lapsed or stopped.

Abstract: Embodiments of the present disclosure relate to mechanism for providing multiple transmission opportunities. According to embodiments of the present disclosure, the network device transmits the random access response which includes an indication as to the number of transmission opportunities. If the random access response includes the preamble of the terminal device, the indication as to the number of transmission opportunities is applied to the terminal device. In this way, overheads are saved and the flexibility is improved.

Abstract: Embodiments of the present disclosure relate to handling physical downlink control channel skipping and wake up signaling. According to example embodiments of the present disclosure, there is provided a solution for handling WUS occasions and the PDCCH skipping. In this solution, the device may determine whether to skip monitoring the PDCCH and determine whether to skip monitoring the WUS based on the type of PDCCH. The device may also determine when to transmit the WUS based on the type of the PDCCH. In this way, the WUS and the PDCCH skipping can be configured simultaneously and the power can be further saved.

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.

Abstract: Various communication systems may benefit from the appropriate use of sequence numbers. For example, radio link control unacknowledged mode may benefit from the use of sequence numbers on demand for segmentation. A method can include determining whether segmentation is to occur with respect to a packet data unit. The method can include providing a sequence number in a header of the packet data unit contingent on usage of segmentation with respect to the packet data unit.

Abstract: The embodiments of the disclosure present a method. The method comprises a step of receiving at a user device dynamic control information, said dynamic control information modifying one or more restrictions associated with uplink grant for one or more channels; and a step of using said modified restriction to control grant for one or more channels. An apparatus and a computer program thereof are also disclosed.