Abstract: The present disclosure describes methods and systems applicable to multi-branch non-orthogonal (NOMA) wireless communication. The described methods and systems include a base station (120) determining (705) a first plurality of multiple access resources and an order of the first plurality of multiple access resources. The base station (120) transmits (710), to a user equipment (110), a message that includes the determined first plurality of multiple access resources and the determined order of the first plurality of multiple access resources. The user equipment (110) transmits, to the base station (120), a multi-branch data stream using a second plurality of multiple access resources that is determined from the first plurality of multiple access resources, after which the base station (120) decodes (730) data from the multi-branch data stream by combining the second plurality of multiple access resources in accordance with the determined order of the first plurality of multiple access resources.

Abstract: This document discloses procedures and apparatus for code block group (CBG)-based non-orthogonal multiple access (NOMA) transmission for a wireless communication link, such as fifth generation new radio. In aspects, a user equipment (UE) receives a first message including a first configuration for a CBG-based transmission scheme. The UE receives a second message including a second configuration for a NOMA transmission scheme. The UE transmits uplink control information (UCI) to the base station using the NOMA transmission scheme from the second configuration. Further, the UE transmits uplink data associated with the UCI using a CBG-based NOMA transmission scheme based on the first configuration and the second configuration. The UE receives a hybrid automatic retransmission request (HARQ) message including one or more HARQ acknowledgements (ACKs) or negative acknowledgements (NACKs) corresponding to a decoding result of the uplink data.

Abstract: This document discloses procedures and apparatus for code block group (CBG)-based non-orthogonal multiple access (NOMA) transmission for a wireless communication link, such as fifth generation new radio. In aspects, a user equipment (UE) receives a first message including a first configuration for a CBG-based transmission scheme. The UE receives a second message including a second configuration for a NOMA transmission scheme. The UE transmits uplink control information (UCI) to the base station using the NOMA transmission scheme from the second configuration. Further, the UE transmits uplink data associated with the UCI using a CBG-based NOMA transmission scheme based on the first configuration and the second configuration. The UE receives a hybrid automatic retransmission request (HARQ) message including one or more HARQ acknowledgements (ACKs) or negative acknowledgements (NACKs) corresponding to a decoding result of the uplink data.

Abstract: This document describes techniques for configuring beamformed wireless communication between a base station (121) and a user equipment (110) for grant-free communication using non-orthogonal multiple access (NOMA). In aspects, a base station (121) transmits downlink reference signals to a user equipment (110) using multiple transmit antenna configurations (402), configures multiple time-frequency resources for NOMA transmission by the user equipment (110) (404), and configures an association between the downlink reference signals and the time-frequency resources for the user equipment (110) (406). The base station (121) transmits the configuration of the time-frequency resources and the association between the downlink reference signals and the time-frequency resources to the user equipment (110) (408).

Abstract: This document discloses procedures and apparatus for code block group (CBG)-based non-orthogonal multiple access (NOMA) transmission for a wireless communication link (130), such as fifth generation new radio. In aspects, a user equipment (UE) (110) receives a first message including a first configuration for a CBG-based transmission scheme. The UE (110) receives a second message including a second configuration for a NOMA transmission scheme. The UE (110) transmits uplink control information (UCI) to the base station (120) using the NOMA transmission scheme from the second configuration. Further, the UE (110) transmits uplink data associated with the UCI using a CBG-based NOMA transmission scheme based on the first configuration and the second configuration. The UE (110) receives a hybrid automatic retransmission request (HARQ) message including one or more HARQ acknowledgements (ACKs) or negative acknowledgements (NACKs) corresponding to a decoding result of the uplink data.

Abstract: This document describes techniques for configuring beamformed wireless communication between a base station (121) and a user equipment (110) for grant-free communication using non-orthogonal multiple access (NOMA). In aspects, a base station (121) transmits downlink reference signals to a user equipment (110) using multiple transmit antenna configurations (402), configures multiple time-frequency resources for NOMA transmission by the user equipment (110) (404), and configures an association between the downlink reference signals and the time-frequency resources for the user equipment (110) (406). The base station (121) transmits the configuration of the time-frequency resources and the association between the downlink reference signals and the time-frequency resources to the user equipment (110) (408).

Abstract: The present disclosure describes methods and systems applicable to multi-branch non-orthogonal (NOMA) wireless communication. The described methods and systems include a base station (120) determining (705) a first plurality of multiple access resources and an order of the first plurality of multiple access resources. The base station (120) transmits (710), to a user equipment (110), a message that includes the determined first plurality of multiple access resources and the determined order of the first plurality of multiple access resources. The user equipment (110) transmits, to the base station (120), a multi-branch data stream using a second plurality of multiple access resources that is determined from the first plurality of multiple access resources, after which the base station (120) decodes (730) data from the multi-branch data stream by combining the second plurality of multiple access resources in accordance with the determined order of the first plurality of multiple access resources.

Abstract: A base station (BS) for handling Physical Random Access Channel (PRACH) resources on a SCell in carrier aggregation comprises at least one storage device storing instructions of transmitting a radio resource control (RRC) message configuring the SCell to a communication device, wherein the RRC message comprises a DL beam management (BM) reference signal (RS) configuration and an association between a plurality of PRACH resources and a plurality of DL Tx beams; transmitting a plurality of DL BM RSs by using the plurality of DL Tx beams on the SCell, respectively; receiving a measurement report of the plurality of DL BM RSs; determining a DL Tx beam according to the measurement report; transmitting a Physical DL Control Channel (PDCCH) order by using the DL Tx beam, wherein the PDCCH order comprises a PRACH mask index indicating at least one PRACH resource; and determining a PRACH resource according to the measurement report.

Abstract: This document discloses procedures and apparatus for code block group (CBG)-based non-orthogonal multiple access (NOMA) transmission for a wireless communication link (130), such as fifth generation new radio. In aspects, a user equipment (UE) (110) receives a first message including a first configuration for a CBG-based transmission scheme. The UE (110) receives a second message including a second configuration for a NOMA transmission scheme. The UE (110) transmits uplink control information (UCI) to the base station (120) using the NOMA transmission scheme from the second configuration. Further, the UE (110) transmits uplink data associated with the UCI using a CBG-based NOMA transmission scheme based on the first configuration and the second configuration. The UE (110) receives a hybrid automatic retransmission request (HARQ) message including one or more HARQ acknowledgements (ACKs) or negative acknowledgements (NACKs) corresponding to a decoding result of the uplink data.

Abstract: A network for handling a CBG-based transmission comprises a storage device for storing instructions and a processing circuit coupled to the storage device. The storage device stores, and the processing circuit is configured to execute instructions of configuring a CBG-based transmission to a communication device; generating a plurality of CBG sets; generating a plurality of cumulative indices for the plurality of CBG sets, respectively, and generating a total index for the plurality of CBG sets; generating a plurality of downlink control informations (DCIs), wherein each of the plurality of DCIs comprises information indicating a size of a corresponding one of the plurality of CBG sets, a corresponding one of the plurality of cumulative indices and the total index; and transmitting the plurality of DCIs and the plurality of CBG sets to the communication device via the CBG-based transmission.

Abstract: A base station (BS) for sharing downlink (DL) demodulation reference signals (DMRSs) between the DL data and the DL control signals comprises a storage device for storing instructions and a processing circuit coupled to the storage device. The processing circuit is configured to execute the instructions stored in the storage device. The instructions comprise transmitting a DL control signal on a first layer in a first time-frequency resource to the communication device; transmitting a DL data, associated with the DL control signal on a second layer in the first time-frequency resource and on the first layer and the second layer in a second time-frequency resource, to the communication device; and transmitting a set of DMRSs for the DL control signal and the DL data to the communication device.

Abstract: A method for use in a wireless communication device for controlling hybrid automatic repeat request (HARQ) process includes: determining a prediction of decoding result of a received data block based on at least signal strength of at least one of the received data block, a received control block, and a received reference signal; and sending a HARQ feedback message to another wireless communication device from which the received data block is transmitted according to the prediction decoding result.

Abstract: The technique of beamforming is to be adopted in 5G NR systems in both DL and UL directions to combat the effect of acute path loss in the Giga hertz frequency region. With beamforming, the measured path loss in the UL and DL directions will be different even if the same carrier frequency is used for both DL and UL, due to the fact that the antenna gains are not unity as in the case in LTE/LTE-A systems. In view of this, embodiments of the present invention provide method and apparatus to handle the mechanism of UL transmit power control.

Abstract: The technique of beamforming is to be adopted in 5G NR systems in both DL and UL directions to combat the effect of acute path loss in the Giga hertz frequency region. With beamforming, the measured path loss in the UL and DL directions will be different even if the same carrier frequency is used for both DL and UL, due to the fact that the antenna gains are not unity as in the case in LTE/LTE-A systems. In view of this, embodiments of the present invention provide method and apparatus to handle the mechanism of UL transmit power control.

Abstract: A network transmitting a duration of a subframe of a first type to a communication device; transmitting a multiplexing scheme for the subframe of the first type and a subframe of a second type to the communication device, wherein the duration of the subframe of the first type is shorter than a duration of the subframe of the second type; determining a duration of a subframe of a third type, wherein the duration of the subframe of the second type is not an integral multiple of the duration of the subframe of the first type; transmitting the duration of the subframe of the third type to the communication device; and performing the communication operation in a plurality of subframes of the first type in at least one subframe of the third type according to the multiplexing scheme via a physical channel.

Abstract: The technique of beamforming is to be adopted in 5G NR systems in both DL and UL directions to combat the effect of acute path loss in the Giga hertz frequency region. With beamforming, the measured path loss in the UL and DL directions will be different even if the same carrier frequency is used for both DL and UL, due to the fact that the antenna gains are not unity as in the case in LTE/LTE-A systems. In view of this, embodiments of the present invention provide method and apparatus to handle the mechanism of UL transmit power control.

Abstract: A communication device configured to communicate with a network via at least one carrier is disclosed. The at least one carrier includes a plurality of transmission time interval (TTI) length configurations. The communication device includes a soft buffer for storing a downlink data transmission from the network; a storage unit configured to store a program code; and a processor electrically coupled to the storage unit. The processor is configured to access the program code to partition the soft buffer into a plurality of soft buffer partitions among the TTI length configurations according to a plurality of HARQ process numbers corresponding to the TTI length configurations.

Abstract: A base station (BS) for handling Physical Random Access Channel (PRACH) resources on a SCell in carrier aggregation comprises at least one storage device storing instructions of transmitting a radio resource control (RRC) message configuring the SCell to a communication device, wherein the RRC message comprises a DL beam management (BM) reference signal (RS) configuration and an association between a plurality of PRACH resources and a plurality of DL Tx beams; transmitting a plurality of DL BM RSs by using the plurality of DL Tx beams on the SCell, respectively; receiving a measurement report of the plurality of DL BM RSs; determining a DL Tx beam according to the measurement report; transmitting a Physical DL Control Channel (PDCCH) order by using the DL Tx beam, wherein the PDCCH order comprises a PRACH mask index indicating at least one PRACH resource; and determining a PRACH resource according to the measurement report.

Abstract: A network of handling a sEPDCCH transmission comprises instructions of determining a duration of a sTTI; determining the number of a plurality of available REs of a plurality of REs in a sSU, nEPDCCH; determining an AL of the sSU, Q; determining the number of a plurality of ECCEs in an aggregated sSU, K; determining the number of a plurality of EREGs in an ECCE, A; numbering a plurality of available REs in the aggregated sSU from 0 to (A*K?1) cyclically; arranging the plurality of EREGs numbered with 0 to (A*K?1) according to a K by A matrix; determining the number of a plurality of aggregated sSUs for performing the sEPDCCH transmission, N; determining the number of a plurality of ECCEs in N aggregated sSUs, N*K; and determining a sEPDCCH position on N*K consecutive ECCEs.

Abstract: A network of handling uplink (UL) transmission comprises instructions of configuring a maximum retransmission attempt to a communication device; configuring a UL transmission skipping mechanism to the communication device; transmitting a UL grant comprising a first modulation and coding scheme (MCS) and an allocation of a first resource to the communication device for performing the UL transmission; receiving the UL transmission generated according to the first MCS in the first resource according to the UL transmission skipping mechanism; decoding the UL transmission for a plurality of times according to an error control coding (ECC) scheme, wherein the UL transmission is a first redundant version (RV) corresponding to a new transmission with a first RV index or a second RV corresponding to a retransmission with a second RV index; and transmitting an acknowledgment indicating whether the UL transmission is decoded successfully to the communication device.