Abstract: Apparatuses, methods, and systems are disclosed for semi-static channel access with directional FFP. One method (800) includes receiving (805) a configuration for a plurality of FFPs, where each FFP is associated with a separate transmit beam for transmission within that FFP. The method (800) includes identifying (810) an initiated FFP and performing (815) communication activity during the initiated FFP using a beam corresponding to the initiated FFP, where the communication activity includes a transmission, a reception, or a combination thereof.

Abstract: A communication apparatus includes circuitry that determines a number of resource blocks forming a resource block group, which is a unit used to allocate a resource to the communication apparatus, in a first band or in a second band that is an expanded band to which the first band is expanded, and a subcarrier spacing for the second band is same or different from a subcarrier spacing for the first band; and a transceiver that is coupled to the circuitry and that communicates with a base station using the resource. One of the number of resource blocks set for the first band and the number of resource blocks set for the second band is an integer multiple of the other, and the number of resource blocks set for the first band and the number of resource blocks set for the second band are values that are a power of two.

Abstract: Apparatuses, methods, and systems are disclosed for performing listen-before-talk operations for physical sidelink feedback channel transmissions. One method includes performing, at a user equipment (“UE”), a listen-before-talk (“LBT”) operation for a physical sidelink feedback channel (“PSFCH”) transmission. The method includes receiving configuration information for performing the LBT operation for the PSFCH transmission. The method includes determining the LBT operation for the PSFCH. A category (“CAT”) 4 LBT is performed at a beginning of a slot before a physical sidelink shared channel (“PSSCH”) symbol, before a PSFCH symbol, using a short control signaling exemption rule, or a combination thereof.

Abstract: Apparatuses, methods, and systems are disclosed for one shot hybrid automatic repeat request feedback reporting. One method includes transmitting, from a user equipment (“UE”), a configuration for a one shot hybrid automatic repeat request (“HARQ”) feedback request to at least one receiver. The method includes configuring one shot HARQ feedback including one or more of a one shot HARQ feedback request bit field in sidelink control information (“SCI’), a destination identifier (“ID”), a cast type indicator, or a bitmap containing HARQ processes. The method includes receiving the one shot HARQ feedback report associated with a subset of HARQ processes of a plurality of HARQ processes and based at least in part on a cast type and a groupcast HARQ feedback.

Abstract: The invention relates to an improved transmission protocol for uplink data packet transmission in a communication system. A receiver of a user equipment receives a Fast Retransmission Indicator, referred to as FRI. The FRI indicates whether or not a base station requests a retransmission of a previously transmitted data packet. A transmitter of the user equipment retransmits the data packet using the same redundancy version as already used for the previous transmission of the data packet.

Abstract: This invention concerns concepts for signaling resource allocation information to a terminal that indicates to the terminal assigned resources for the terminal. The terminal can receives downlink control information (DCI), which comprises a field for indicating the resource allocation information of the terminal. This resource assignment field within the DCI has a predetermined number of bits. The terminal can determines its assigned resource allocation information from the content of the received DCI, even though the bit size of the resource allocation field in the received DCI is insufficient to represent all allowed resource allocations. According to an embodiment, the received bits that are signaled to the terminal in the DCI represent predetermined bits of the resource allocation information. All remaining one or more bits of the resource allocation information that are not included in the field of the received DCI are set to predetermined value.

Abstract: A base station is disclosed, which is capable of appropriately configuring the timings of data assignment, data transmission and reception, and feedback for a case where the DL and UL sTTI lengths are different from each other. In this base station (100), a transmission section (106) transmits a downlink signal using a first short transmission time interval (sTTI) shortened in length than a TTI and used for downlink; and a reception section (107) receives an uplink signal using a second sTTI shortened in length than the TTI and used for uplink. When the first sTTI is shorter in length than the second sTTI, the reception section (107) receives the uplink signal in the second sTTI positioned after a predetermined interval from the transmission timing of the downlink signal, the predetermined interval being configured based on the length of the first sTTI.

Abstract: A base station is disclosed that enables an efficient use of resources even when a TTI length is shortened. In this base station, a PDCCH section (103) generates one piece of downlink control information (DCI) containing control information for a plurality of first transmission time intervals (TTIs) each having a TTI length shorter than a second TTI, and a transmission section (107) transmits the DCI. Control information on retransmission processing for a data signal is configured for each of the plurality of first TTIs while control information other than the control information on the retransmission processing is configured in common among the plurality of first TTIs in the DCI.

Abstract: The present disclosure relates to a resource allocation procedure for allocating time-frequency radio resources by a scheduler in a mobile communication system. A plurality of numerology schemes are defined, each partitioning a plurality of radio resources of the mobile communication system into resource scheduling units in a different manner. A reference resource set is defined per numerology scheme, each being associated to a set of radio resources usable for being allocated according to the respective numerology scheme. The reference resource set of at least one numerology scheme overlaps with the reference resource set of at least another numerology scheme in the frequency and/or time domain. The resource allocation procedure is performed for allocating radio resources to one or more user terminals according to the numerology schemes. The resource allocation procedure is performed for each numerology scheme based on a scheduling time interval defined for the respective numerology scheme.

Abstract: The present application is related to a method and apparatus for semi-static HARQ-ACK codebook determination. A method for semi-static HARQ-ACK codebook determination includes: receiving downlink control information (DCI) scheduling a data transmission in a set of candidate data transmission occasions; transmitting a HARQ-ACK codebook for the set of candidate data transmission occasions; receiving another DCI scheduling another data transmission in another set of candidate data transmission occasions; and transmitting another HARQ-ACK codebook for the abovementioned another set of candidate data transmission occasions.

Abstract: Apparatuses, methods, and systems for positioning reporting enhancements over unlicensed bands. A method in a user equipment (UE) includes determining a channel occupancy time (COT) value; determining a time to a next positioning measurement report, determining a maximum COT associated with the determined COT, and generating and transmitting a positioning measurement report at the determined COT responsive to the maximum COT being at least greater than a combination of a window size of a previously determined positioning reference signal (PRS), the determined time to the next positioning measurement report, and a predetermined reporting window size. The method also includes transmitting the generated positioning measurement report at a next available COT responsive to a time instance in which the positioning measurement report is ready and the determined COT meeting a predefined position latency requirement responsive to the maximum COT not being at least greater than the combination.

Abstract: Apparatuses, methods, and systems are disclosed for positioning triggering and capability enhancements over unlicensed bands. A method performed in a user equipment (UE) includes detecting an available transmission opportunity or a set of triggering criteria and transmitting a request for assistance data at least partially over an unlicensed carrier based on the available transmission opportunity or the set of triggering criteria.

Abstract: Provided are an eNB, a UE and wireless communication methods. The eNB, in an embodiment, includes circuitry operative to fill a SPS activation/deactivation field in a DCI with a predetermined pattern of bits; and a transmitter operative to transmit the DCI to a first UE for the first UE to start periodically transmitting signals to a second UE or stop periodically transmitting signals to the second UE based on the SPS activation/deactivation field. The DCI is in a SPS format formed by adopting part or all bits of at least one field of DCI format 5 as the SPS activation/deactivation field, and information supposed to be transmitted in the at least one field is indicated with the assistance of or by RRC or MAC signaling.

Abstract: Apparatuses, methods, and systems are disclosed for UE assistance for no-LBT based unlicensed channel access. A processor (305) calculates a combined gain from a combination of an antenna configuration gain and a beamforming gain for at least one transmission beam. The processor (305) determines if the at least one transmission beam can be used for a no-LBT based channel access mechanism in an unlicensed band with or without a channel occupancy duration restriction based on the combined gain. The processor (305) transmits, via a transceiver (325), to a network node, information that indicates whether the at least one transmission beam can be used for a no-LBT based channel access mechanism in an unlicensed band with or without a channel occupancy duration restriction, or whether the network node can apply an LBT-based channel access mechanism, or some combination thereof.

Abstract: Various aspects of the present disclosure relate to methods, apparatuses, and systems that support angle-based positioning. For instance, an angular search window and associated uncertainty for positioning (e.g., sidelink positioning) can be determined based on an approximate position and/or range of a target-UE. Further, reporting of per path measurements is provided to in multipath environments. Implementations are also provided for triggering, configuring, and reporting angle information including angle of arrival (AoA) and/or angle of departure (AoD) (e.g., sidelink AoA and/or sidelink AoD) in terms of a Global Coordinate System (GCS) and a Local Coordinate System (LCS).

Abstract: A communication apparatus includes a circuitry and a transmitter. In operation, the circuitry generates a Demodulation Reference Signal (DMRS) and generates downlink control information indicating a mapping pattern of the DMRS from a plurality of mapping patterns, and the transmitter transmits the DMRS and the downlink control information. The plurality of mapping patterns include a first mapping pattern and a second mapping pattern. Resource elements used for the DMRS of the second mapping pattern are same as a part of resource elements used for the DMRS of the first mapping pattern. A number of the resource elements used for the DMRS of the first mapping pattern is larger than a number of the resource elements used for the DMRS of the second mapping pattern.

Abstract: Various aspects of the present disclosure relate to unlicensed sidelink positioning reference signal transmission and resource allocation. An apparatus, such as a UE or other communication device, receives a resource allocation configuration to perform sidelink positioning reference signal (SL-PRS) transmission over unlicensed carriers. The resource allocation configuration can include at least resource block (RB) sets, subchannel sizes, subchannel numbers, and comb-sizes of multiple SL-PRSs. The UE transmits at least one SL-PRS over an unlicensed carrier based at least in part on the resource allocation configuration.

Abstract: The invention relates to a method for dynamically indicating a TDD reconfiguration to the mobile station by encoding the dynamic TDD re-configuration indication into the DCI or CRC calculated for the DCI. In one embodiment, the TDD configuration indication is implicitly encoded as an RNTI into the CRC, when scrambling the CRC for the DCI with a TDD-RNTI. In another embodiment, the TDD configuration indication is part of the DCI payload, while the CRC for the DCI is scrambled with a cell identifier, identifying the target cell for which the dynamic TDD re-configuration is to be applied. In still another embodiment, the TDD configuration indication is part of the DCI payload, where the DCI payload further includes an invalid parameter indicating to the mobile station that the DCI carries the TDD configuration indication.

Abstract: The present disclosure relates to receiving and transmitting data in a frame with subframes of a wireless communication system, each subframe being either an uplink subframe accommodating uplink signal, a downlink subframe accommodating downlink signal or a special subframe including a downlink signal portion as well as an uplink signal portion. A control signal includes a special subframe configuration specifying the length of the uplink and/or downlink portion of the special subframe. The mapping and demapping of user data and/or control data including feedback information in a transmission time interval, TTI, onto or from one subframe is then performed, wherein the length of a second TTI for mapping onto the uplink portion of a special subframe is shorter than a first TTI for mapping onto an uplink subframe, or a first number of TTIs mapped onto the uplink subframe is larger than a second number of TTIs for mapping onto the uplink portion of a special subframe.

Abstract: The present disclosure relates to enabling and disabling of codewords in multi-subframe grants. In particular, dynamic and subframe based enabling/disabling of codewords is enabled even if other control parameters including the resource allocation is performed for multiple subframes. For instance, signal from a scheduling entity to a scheduled entity comprises control information including the resource grant common for multiple subframes and a plurality of codewords for each subframe, and a codeword indication indicating enabling or disabling of one or more codewords for each of the multiple subframes. For each subframe it is determined whether a codeword from the plurality of codewords in said subframes is enabled or disabled according to the codeword indication and/or which codeword is enabled or disabled. The indication of enabling and disabling may alternatively be done by using modulation and coding scheme indicator values which are not associated with a particular modulation and coding scheme.