Abstract: This disclosure relates to a blockchain-based key generation method and apparatus. The method includes: generating a first proposal request, the first proposal request comprising key generation information and a negotiation node list; broadcasting the first proposal request to each of the consensus nodes in the blockchain such that each of the negotiation nodes generates commitment information and an auxiliary shard for each consensus node based on the key generation information; receiving the commitment information transmitted by the negotiation node and the auxiliary shard generated by the negotiation node; generating, based on the commitment information and the auxiliary shard generated, a negotiation key; and transmitting voting information to a second master node such that the second master node generates a second proposal request based on the voting information, the second proposal request being for triggering the consensus node in the blockchain to enable the negotiation key.

Abstract: A system and method is provided for increasing a peak data rate achieved in HARQ feedback-disabled User Equipment (UE) in a Narrow Band Internet of Things (NB-IoT) non-terrestrial network (NTN) system where NB-IoT devices are connected to the gNodeB (gNB) through a satellite where a Downlink Control Information (DCI) N0 is received at the UE and the UE checks a Hybrid Automatic Repeat Request (HARQ) process number field to confirm the HARQ feedback is disabled, where the system determines an actual number of scheduled Transmission Blocks (TB) in an Uplink based on a New Data Indicator field and a Number of Scheduled TBs for Unicast field in the DCI N0. The actual number of scheduled TBs being greater than two without adding new bits to the DCI N0.

Abstract: A block chain consensus method is provided, performed by a computer device in which a proposal node in a block chain is located, and includes: acquiring a to-be-consensual transaction block, the to-be-consensual transaction block being generated based on at least one piece of to-be-packaged transaction data; acquiring a hash fingerprint of the proposal node, and performing signature endorsement on the transaction block by using the hash fingerprint of the proposal node, to obtain signature endorsement information, the hash fingerprint being determined after a hash operation is performed on certificate data corresponding to the proposal node; combining the signature endorsement information and the transaction block, to generate a proposal message; and broadcasting the proposal message to at least one verification node in the block chain, to trigger each verification node to reach a consensus, based on the hash fingerprint of the proposal node in the proposal message, on the proposal message.

Abstract: A consensus method for a blockchain includes: obtaining, in a consensus reaching process of a block initiated by a proposal node, prevote messages generated by consensus nodes in a blockchain network; counting a quantity of first prevote messages for the block based on the received prevote messages, the first prevote messages being generated by the consensus nodes within a set duration in response to a proposal message for the block, the set duration corresponding to the proposal node and being determined based on a block generation duration of the proposal node; and adjusting the set duration corresponding to the proposal node recorded by the consensus nodes based on the quantity of the first prevote messages.

Abstract: This application provides a foldable screen control method and an electronic device, and relates to the field of electronic technologies. The method includes: receiving a folding operation performed on a foldable screen, and sending first prompt information in response to a folding sequence anomaly of the foldable screen in response to the folding operation. The foldable screen includes a first screen, a second screen, a third screen, a first folding axis, and a second folding axis. The first folding axis is located between the first screen and the second screen and is configured to allow the first screen to be folded or unfolded relative to the second screen. The second folding axis is located between the second screen and the third screen and is configured to allow the third screen to be folded or unfolded relative to the second screen.

Abstract: Described are implementations for HARQ-disabling in IoT-NTN deployment AND disabling HARQ-ACK feedback. Signaling mechanisms include configurations for HARQ process ID(s), NPDCCH monitoring, a New Data Indicator (NDI) bit in Downlink Control Information (DCI), and a HARQ-ACK feedback transmission in the uplink.

Abstract: A node consensus method includes selecting, an abnormal node meeting a set node anomaly condition from a plurality of the consensus nodes in response to a target proposal being obtained and a locally recorded total number of proposal generations reaching a total number threshold; transmitting a first vote in a prevote stage to other consensus nodes and receiving one or more first votes in the prevote stage that are transmitted by the other consensus nodes, the first vote transmitted by a first consensus node carrying a node identifier of the abnormal node; transmitting a second vote in a precommit stage to the other consensus nodes, and receiving one or more second votes in the precommit stage that are transmitted by the other consensus nodes; and determining that a consensus is reached on the target proposal and deleting the abnormal node from the plurality of consensus nodes.

Abstract: A data transmission method includes: transmitting, by a leader node, a generated proposal to N follower nodes in a regional chain system, and recording a quantity of transmissions of the proposal from the leader node to each of the N follower nodes; receiving node state information transmitted by M follower nodes of the N follower nodes, and determining a first node of the N follower nodes not receiving the proposal based on the node state information of the M follower nodes; obtaining a quantity of transmissions of the proposal from the leader node to the first node, and determining a time interval before a next transmission of the proposal to the first node based on the quantity of transmissions of the proposal to the first node, the time interval being positively correlated with the quantity of transmissions; and retransmitting the proposal to the first node based on the time interval.

Abstract: A consensus method for a blockchain includes: obtaining, based on recorded proposal waiting parameters corresponding to blockchain nodes, a proposal waiting parameter corresponding to a current proposal node in the blockchain nodes; determining, based on the proposal waiting parameter corresponding to the current proposal node, proposal waiting duration corresponding to the current proposal node; and adjusting, in response to a proposal message initiated by the current proposal node is not received within the proposal waiting duration at a proposal stage of the current proposal node, the proposal waiting parameter corresponding to the current proposal node to reduce the proposal waiting duration corresponding to the current proposal node.

Abstract: This disclosure relates to a blockchain-based key generation method and apparatus. The method includes: generating a first proposal request, the first proposal request comprising key generation information and a negotiation node list; broadcasting the first proposal request to each of the consensus nodes in the blockchain such that each of the negotiation nodes generates commitment information and an auxiliary shard for each consensus node based on the key generation information; receiving the commitment information transmitted by the negotiation node and the auxiliary shard generated by the negotiation node; generating, based on the commitment information and the auxiliary shard generated, a negotiation key; and transmitting voting information to a second master node such that the second master node generates a second proposal request based on the voting information, the second proposal request being for triggering the consensus node in the blockchain to enable the negotiation key.

Abstract: A system and a method are provided for optimizing application of timing advance command (TAC) mechanism in a Narrow Band Internet of Things (NB-IoT) non-terrestrial network (NTN) system utilizes a timing advance (TA) estimation restriction duration. After one operation of a timing advance (TA) estimation resulting in issuing of an initial TAC, the gNB ignores the results of new TA estimations until specified X seconds after the initial TAC is sent. TA estimation restriction duration refers to the time duration between the initial TA estimation and X seconds after the initial TAC. The value of X is specified such that X represents the minimum duration starting from the transmission of the first TAC in which any received NPUSCH within this duration is not based on a new TAC. By applying the TA estimation restriction duration, multiple corrections of the same TA error are prevented.

Abstract: A system and method is provided for increasing a peak data rate achieved in HARQ feedback-disabled User Equipment (UE) in a Narrow Band Internet of Things (NB-IoT) non-terrestrial network (NTN) system where NB-IoT devices are connected to the gNodeB (gNB) through a satellite where a Downlink Control Information (DCI) N0 is received at the UE and the UE checks a Hybrid Automatic Repeat Request (HARQ) process number field to confirm the HARQ feedback is disabled, where the system determines an actual number of scheduled Transmission Blocks (TB) in an Uplink based on a New Data Indicator field and a Number of Scheduled TBs for Unicast field in the DCI N0. The actual number of scheduled TBs being greater than two without adding new bits to the DCI N0.

Abstract: A consensus method for a blockchain includes: obtaining, in a consensus reaching process of a block initiated by a proposal node, prevote messages generated by consensus nodes in a blockchain network; counting a quantity of first prevote messages for the block based on the received prevote messages, the first prevote messages being generated by the consensus nodes within a set duration in response to a proposal message for the block, the set duration corresponding to the proposal node and being determined based on a block generation duration of the proposal node; and adjusting the set duration corresponding to the proposal node recorded by the consensus nodes based on the quantity of the first prevote messages.

Abstract: A honeycomb body having a repeating channel structure formed of intersecting porous walls. The repeating channel structure comprises a first channel type defined by at least four first surfaces, at least two of the at least four first surfaces are parallel to one another; and a second channel type having at least four second surfaces, wherein four or more of the at least four second surfaces are non-parallel with one another. Repeating channel structure is repeated in the honeycomb body. Honeycomb extrusion dies and methods of manufacturing the honeycomb body are provided, as are other embodiments.

Abstract: Described are implementations for HARQ-disabling in IoT-NTN deployment AND disabling HARQ-ACK feedback. Signaling mechanisms include configurations for HARQ process ID(s), NPDCCH monitoring, a New Data Indicator (NDI) bit in Downlink Control Information (DCI), and a HARQ-ACK feedback transmission in the uplink.

Abstract: Articles and methods related to the cold-forming of glass laminate articles utilizing stress prediction analysis are provided. A cold-forming estimator (CFE) value that is related to the stress experienced by a glass sheet of a glass laminate during cold-forming is calculated based on a plurality of geometric parameters of glass layer(s) of a glass laminate article. The calculated CFE value is compared to a cold-forming threshold related to the probability that defects are formed in the complexly curved glass laminate article during cold-forming. Cold-formed glass laminate articles are also provided having geometric parameters such that the CFE value is below the cold-forming threshold.

Abstract: Articles and methods related to the cold-forming of glass laminate articles utilizing stress prediction analysis are provided. A cold-forming estimator (CFE) value that is related to the stress experienced by a glass sheet of a glass laminate during cold-forming is calculated based on a plurality of geometric parameters of glass layer(s) of a glass laminate article. The calculated CFE value is compared to a cold-forming threshold related to the probability that defects are formed in the complexly curved glass laminate article during cold-forming. Cold-formed glass laminate articles are also provided having geometric parameters such that the CFE value is below the cold-forming threshold.

Abstract: The disclosure relates to performing phase compensation at a transmitter. A processing device for a network access node generates a phase compensated modulation symbol based on at least one first modulation symbol and at least on one of a frequency offset parameter and a time offset parameter. The frequency offset parameter may be determined based on an offset between a reference frequency f0 and a DC (0 Hz) frequency such that the frequency offset parameter corresponds to the reference frequency f0. Also, the reference frequency f0 can be at least partly based on the carrier of up-conversion frequency used by the processing device and the reference frequency f0 can be the carrier for up-conversion frequency. The phase compensated symbol is transmitted to a receiver, such as a client device. Furthermore, the disclosure also relates to corresponding methods and a computer program.

Abstract: Channel covariance feedback is disclosed for enhanced full-dimension multiple input, multiple output (eFD-MIMO) systems. Channel state information (CSI) reference signal (CSI-RS) feedback operations are implemented using spatial covariance feedback of a covariance estimate. After obtaining a set of orthogonal basis vectors, a user equipment (UE) measures the CSI-RS from a base station and determines the spatial covariance matrix from the signal. The UE may then compress the spatial covariance matrix into a lower-dimension covariance estimate matrix using the orthogonal basis vectors. The lower-dimension matrix along with element-wise quantization allows for feedback of spatial covariance for eFD-MIMO systems without excessive feedback overhead.

Abstract: Articles and methods related to the cold-forming of glass laminate articles utilizing stress prediction analysis are provided. A cold-forming estimator (CFE) value that is related to the stress experienced by a glass sheet of a glass laminate during cold-forming is calculated based on a plurality of geometric parameters of glass layer(s) of a glass laminate article. The calculated CFE value is compared to a cold-forming threshold related to the probability that defects are formed in the complexly curved glass laminate article during cold-forming. Cold-formed glass laminate articles are also provided having geometric parameters such that the CFE value is below the cold-forming threshold.