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: 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: One embodiment is directed to a method comprising determining if a HARQ RTT timer for a downlink HARQ process expires; if the HARQ RTT timer for the downlink HARQ process is determined expired, determining if the data of the corresponding downlink HARQ process was successfully decoded; starting a drx-retransmission timer for the corresponding downlink HARQ process if the data of the corresponding downlink HARQ process was not successfully decoded; and (re)starting a drx-inactivity timer if the data of the corresponding downlink HARQ process was successfully decoded; determining if a HARQ RTT timer for a uplink HARQ process expires; if the HARQ RTT timer for the uplink HARQ process is determined expired, starting a drx-retransmission timer for the corresponding uplink HARQ process.

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: Example embodiments of the present disclosure relate to UP transmission for a device in an inactive state. The first device in an inactive state performs a small data transmission procedure between the first device and a second device and transmits an indication to the second device. The indication indicates the following a presence of non-small data transmission data to be transmitted by the first device and information associated with the data. Through this solution, the second device may make a proper and reasonable determination about whether to resume a radio resource control connection with the terminal device and whether to stop the ongoing small data transmission procedure.

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: 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 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: 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 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: The disclosure relates a method comprising: determining that buffered data is available for transmission and cannot be transmitted over allocated resources; and causing information indicating that buffered data is available for transmission and cannot be transmitted over allocated resources to be transmitted over the allocated resources.

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of retransmission mechanism for configured grant uplink transmission. The method comprising transmitting, to a second device, a transport block while starting a configured grant retransmission timer for autonomous retransmission of the transport block; in response to receiving, from the second device, a feedback indicating unsuccessful reception of the transport block, adjusting expiry time of the configured grant retransmission timer without starting the autonomous retransmission of the transport block; determining whether scheduling information for retransmission of the transport block is received before the adjusted configured grant retransmission timer expires; and in response to determining that the scheduling information is received, retransmitting the transport block while stopping the configured grant retransmission timer.

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: 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.

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.