Abstract: A method of a user equipment (UE) for constructing a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook. The method comprises receiving physical downlink control channels (PDCCHs) that convey respective downlink control information (DCI) formats, wherein each DCI format includes a counter field and a slot offset field, receiving physical downlink data channels (PDSCHs) that convey data transport blocks, detecting the DCI formats configuring the received PDSCHs, determining locations for HARQ-ACK bits in a HARQ-ACK codebook based on a value of the slot offset field and a value of the counter field in each detected DCI format, determining a time unit for transmission of the HARQ-ACK codebook based on a value of the slot offset field in each detected DCI format, and transmitting the HARQ-ACK codebook.

Abstract: This application provides a communication method and apparatus. The method includes: implicitly indicating a quantity of time units for transmitting a data channel and a quantity of times of retransmission of the data channel by using a size of a resource for transmitting a control channel.

Abstract: A method to operate an access node of a wireless communication network is provided. A first frame may be provided including a first header and a first data block with first data for a first wireless terminal and a second wireless terminal. The header may include a first control field indicating a first idle period resource and a second control field indicating a second idle period resource, and the first and second idle period resources may be different. Transmission of the first frame to the first and second wireless terminals may be initiated. Responsive to receiving a notification message using the first idle period resource, a second frame may be provided including a second header and a second data block with second data for the second wireless terminal. Transmission of the second frame to the second wireless terminal may be initiated while deferring transmission to the first wireless terminal.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method performed by a first terminal in a communication system is provided.

Abstract: Methods, systems, and devices for wireless communications are described. Aspects include configuring a user equipment (UE) to receive control signals from a first transmission reception point (TRP) and a second TRP. A first TRP may transmit a control signal to the UE indicating resources for receiving a medium access control element (MAC-CE), where the control signal includes an indication that associates the MAC-CE with the first TRP. The first TRP may transmit the MAC-CE to the UE which may include a beam update indication for the first TRP. The UE may transmit an acknowledgement to the first TRP based on receiving the MAC-CE. The UE may also transmit an acknowledgment to the second TRP indicating that it has received a beam update indication from the first TRP. In some cases, the first TRP may send a MAC-CE signal to the UE including beam update information for the second TRP.

Abstract: A network node is arranged to provide communication at least in an unlicensed band where clear channel assessment, CCA, is required before transmissions. The unlicensed band comprises a plurality of carriers, or sets of carriers, defining channels.

Abstract: A method and an apparatus for sidelink of a wireless communication system are proposed. The present disclosure proposes an example in which a TX UE or a RX UE sets a length of an ACK/NACK signal adaptively. The TX UE may set the length of the ACK/NACK signal based on various elements such as priority, length, and service coverage of sidelink data, and the RX UE may set the length of the ACK/NACK signal based on various elements obtained from a process for receiving the sidelink data.

Abstract: Aspects are provided that allow a base station to use visual information of interfering UEs for optimizing shared channel access and beam and interference management and tracking. The base station may obtain visual information of a UE. The base station may then access a shared channel to communicate with the UE based on the visual information. After accessing the shared channel, the base station may communicate with the UE over the shared channel using one or more beams based on the visual information. Efficient channel access and communication in mmW environments may thereby be achieved.

Abstract: A wireless device may receive, in a first timing, a TB associated with a semi-persistent scheduling configuration. The wireless device may start a DRX retransmission timer in a first symbol after the first timing in response to determining to defer a HARQ feedback, associated with the TB, from a second timing to a later timing based on the second timing not being valid for transmission of the HARQ feedback.

Abstract: A method in a radio device of radio resource allocation for transmitting data on a plurality of communication carriers is provided. The method includes sensing on a first carrier and obtaining a first set of candidate radio resources for a first transmission on the first carrier, performing a first selection of one or a plurality of the candidate radio resources from the first set to be used for the first transmission, sensing on a second carrier and obtaining a second set of candidate radio resources for a second transmission on the second carrier, performing a second selection of one or a plurality of the candidate radio resources from the second set to be used for the second transmission, and performing the first selection and the second selection in dependency to each other.

Abstract: The present disclosure relates to a HARQ feedback method and device, and a method and device for determining data to be retransmitted. The HARQ feedback method includes: grouping component carriers (CCs) according to a binding rule which includes a number of resource units in the CCs that can be bundled into a group; calculating a parameter value of each CC group; generating the same number of HARQ codebooks as that of CC groups, a length of one of the HARQ codebooks being determined by a parameter value of a corresponding CC group and the maximum number of resource units in a single CC in the corresponding CC group; and feeding the HARQ codebooks back to a data sender.

Abstract: A transmission method for uplink control information (UCI) is provided. The method includes the following. Target UCI is mapped to a physical uplink shared channel (PUSCH). The PUSCH is transmitted on configured grant (CG) uplink resources, where the target UCI includes at least two types of UCI, and the at least two types of UCI are encoded using joint encoding.

Abstract: A terminal apparatus is configured to: receive a transport block in a primary cell in a subframe i; in a case that HARQ-ACK and a positive scheduling request are transmitted, select a third transmission method in a case that a subframe j in a secondary cell does not correspond to any of first prescribed subframes, and select a fourth transmission method in a case that the subframe j corresponds to any of the first prescribed subframes; and transmit the HARQ-ACK in a PUCCH resource for a scheduling request, wherein the subframe j is given based on at least (I) whether or not a first parameter for the primary cell is configured, (II) whether or not a first parameter for the secondary cell is configured, and (III) a search space in which a PDCCH for scheduling the transport block is transmitted.

Abstract: This disclosure relates to methods and devices for transmitting acknowledgment messages on a preferred cell in a carrier aggregation scenario. A user equipment device (UE) establishes a connection with a primary cell and one or more secondary cells, and determines a preferred cell from among the primary cell and the one or more secondary cells based at least in part on one or more quality metrics. The UE may determine the preferred cell at least in part in response to determining that transmission power of the UE has been limited due to a specific absorption rate (SAR) backoff feature of the UE. The UE transmits a notification to a network indicating that the UE intends to transmit an acknowledgement message to the preferred cell, and transmits the acknowledgment message to the preferred cell.

Abstract: A relay node receives a data block containing multiplexed data streams intended for multiple user equipment (UE) devices being served by the relay node. The relay node extracts the data streams from the data block and allocates them each to a separate narrowband channel that is associated with a particular UE device. The relay node repeatedly transmits the narrowband channels to the UE devices in a broadcast transmission that is transmitted for a predetermined number of repetitions. Each UE device decodes their own respective narrowband channel to obtain the data stream intended for the UE device associated with a particular narrowband channel. A feedback mechanism is utilized by the relay node to determine whether to retransmit a data packet or a new data packet in subsequent broadcast transmissions.

Abstract: The present disclosure relates to a method for a wireless device configured to perform outer-loop control of a Physical Downlink Control Channel, PDCCH, link. The method comprises obtaining, based on reporting from a UE, actual PDCCH success rate values indicative of the transmission success on a PDCCH for two or more of respective downlink control information, DCI, formats among several DCI formats, obtaining expected PDCCH success probability values indicative of DCI format success probabilities for the two or more DCI formats, obtaining discrepant values for respective of the two or more of said DCI formats by comparing the actual PDCCH success rate values to the expected PDCCH success probability values, determining a PDCCH link outer loop compensation factor by suppressing a higher among the discrepant values, and performing a PDCCH link transmission using the PDCCH link outer loop compensation factor.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information identifying a semi-persistent scheduling (SPS) configuration for a broadcast or multicast (broadcast/multicast) communication. The UE may receive the broadcast/multicast communication in accordance with the SPS configuration. Numerous other aspects are provided.

Abstract: There is disclosed a method of operating a feedback radio node in a wireless communication network. The method includes transmitting Hybrid Acknowledgement Repeat Request, HARQ, feedback, according to a HARQ feedback timing, the HARQ feedback timing being based on one timing representation out of a set having a first timing representation and a second timing representation. The disclosure also pertains to related devices and methods.

Abstract: An information determination method, an information determination apparatus, and a device are provided. The information determination method includes: for multiple configurations of uplink grant-free transmission, detecting uplink transmission on a resource corresponding to at least one of the multiple configurations; and in a case that a first configuration corresponding to a resource where the uplink transmission is detected is not a predetermined configuration, determining an HARQ ID of the detected uplink transmission according to association information between the first configuration and the predetermined configuration.

Abstract: A terminal apparatus includes a receiver configured to receive RRC information indicating the maximum number of CBGs X for one transport block in each serving cell; and a generation unit configured to generate X HARQ-ACK bits corresponding to the one transport block, in which the transport block includes NCB code blocks (CBs), in a case that the number of CBs NCB is less than the maximum number of CBGs X, the number of CBGs for the transport block is NCB, and the generation unit generates NCB HARQ-ACK bits for the NCB CBGs and X-NCB NACKs as the X HARQ-ACK bits.