Abstract: In one embodiment, a computer-implemented method performed by a data processing (DP) accelerator, includes receiving, at the DP accelerator, first data representing a set of training data from a host processor; receiving, at the DP accelerator, a watermark kernel from the host processor; and executing the watermark kernel within the DP accelerator on an artificial intelligence (AI) model. The watermark kernel, when executed, is configured to: generate a watermark, train the AI model using the set of training data, and implant the watermark within the AI model during training of the AI model. The DP accelerator then transmits second data representing the trained AI model having the watermark implanted therein to the host processor. In an embodiment, the method further includes receiving a pre-trained AI model and the training is performed for the pre-trained AI model.

Abstract: The present invention discloses a Bluetooth mesh network system having a communication range extending mechanism that includes a plurality of nodes and a provisional node. The provisional node is configured to transmit a connection setting packet to the nodes to control the nodes to establish a coded PHY connection between each two of the nodes such that a packet error rate is smaller than a threshold value when the nodes perform communication when a physical distance between each two of the nodes is larger than a maximum non-coded-PHY communication distance, in which when the nodes establish a non-coded-PHY connection and the physical distance is larger than the maximum non-coded-PHY communication distance, the packet error rate is larger than the threshold value.

Abstract: This patent studies a scale-span modeling method to simulate the structural mechanical responses and dynamic progressive failure behaviors of carbon fiber reinforced plastics (CFRPs) in drilling. Firstly, considering the different mechanical behaviors of fiber and matrix in micro state, a three-dimensional multi-scale dynamic progressive damage evolution model based on micro failure theory is proposed. Based on the degradation elastic parameters of microcomponent in typical volume element model, a new damage evolution model of fiber and resin matrix and an auxiliary deletion criterion of failure element are proposed. Secondly, the relationship between the macro stress and the micro stress of representative volume element in the composite model is established by using the stress amplification factor. Combined with the bilinear cohesion element model, the damage behavior of the composite in and between layers under the cutting action of dagger drill is simulated.

Abstract: In one embodiment, a computer-implemented method of a data processing (DP) accelerator obtaining a watermark of an artificial intelligence (AI) model includes receiving, from a host device, the AI model to execute on the DP accelerator, and receiving input data that triggers output from the AI model on the DP accelerator. The DP accelerator calculates AI model output, in response to the received input and provides the output to the host device. The output can be a watermark extracted from the AI model. DP accelerator can call a security unit of the DP accelerator to digitally sign the output. In an embodiment, the security unit digitally signs the output from the AI model using a key that is retrieved from, or is derived from, a key stored in a secure storage on the security unit.

Abstract: A method of communicating with multiple satellites includes allocating, based on one or more conditions corresponding to a plurality of spatial channels associated with multiple satellites, each subset of a plurality of subsets of antenna resources of a phased array antenna to a respective different satellite included in the multiple satellites. The method also includes commanding one or more transceivers to establish simultaneous communicative connections to the different satellites via the allocated subsets of antenna resources, and re-allocating, based on a detected change to at least one of the one or more conditions, at least one antenna resource to a respective another different satellite. The method also includes commanding the one or more transceivers to maintain the simultaneous communicative connections to the different satellites using the re-allocated at least one antenna resource.

Abstract: This application provides a resource indication method, a terminal device, and a network device. The method includes: determining, by a network device, first indication information, and sending the first indication information to a terminal device, where the first indication information is used to indicate a time domain location occupied in a resource unit by a component pattern of a reference signal; and receiving, by the terminal device, the first indication information, and determining, based on the first indication information, the time domain location occupied in the resource unit by the reference signal. The resource indication method, the terminal device, and the network device in the embodiments of this application help implement a plurality of different mapping modes of a reference signal.

Abstract: An interface circuit in an electronic device (such as an access point) may receive a setup request associated with the recipient electronic device. The setup request may specify a group address for which the recipient electronic device wants to receive associated frames and a proposed transmission interval. Based at least in part on the proposed transmission interval, the electronic device may determine a transmission schedule and/or may assign, based at least in part on the group address, the recipient electronic device to an aggregated group having a flexible multicast service identifier (FMSID). Then, the electronic device may provide a wake-up frame for the recipient electronic device, where the wake-up frame includes an identifier of the aggregated group for which a group-addressed frame will subsequently be transmitted by the electronic device. Moreover, the wake-up frame may be provided at a transmission time based at least in part on the transmission schedule.

Abstract: Example methods and apparatus for configuring a transmit port of a downlink reference signal are described. One example method includes indicating configurations corresponding to a plurality of transmit ports to a terminal device by a network device by using first indication information. Each transmit port may be associated with one piece of delay information, transmit ports associated with same delay information correspond to a same configuration, and at least two transmit ports associated with different delay information correspond to different configurations. The terminal device may receive, based on a configuration corresponding to each transmit port, downlink reference signals sent by the plurality of transmit ports.

Abstract: This application discloses a DMRS indicating method, a DMRS receiving method, and an apparatus. The method includes: determining, by a transmit end from a plurality of groups of demodulation reference signal DMRS configuration information, DMRS configuration information corresponding to a current DMRS transmission scheme, and obtaining DMRS indication information based on the DMRS configuration information, where each group of DMRS configuration information includes a plurality of pieces of DMRS configuration information; and sending, by the transmit end, the DMRS indication information. The method and the apparatus provided in this application are implemented to match a plurality of scenarios in NR. This can satisfy a requirement for transmitting more layers of data, and can further reduce indication overheads.

Abstract: A reference signal transmission method and a communications device are described. The method includes determining, by a first communications device, a first frequency band based on a first initial resource index, a second initial resource index, a first configured bandwidth, and a second configured bandwidth. The first initial resource index is greater than or equal to the second initial resource index, and the first initial resource index is less than or equal to a sum of the second initial resource index and the second configured bandwidth. The method further includes receiving, by the first communications device, a reference signal on the first frequency band. When this application is implemented, an actual transmission bandwidth of the reference signal can be accurately determined.

Abstract: A rotating mechanism includes: a rotating shaft; a first mechanical part, where the first mechanical part is provided with a first slide groove; a second mechanical part, where the second mechanical part is provided with a second slide groove; a third mechanical part, where the third mechanical part is disposed in the first slide groove, and one end of the third mechanical part is rotatably connected to the rotating shaft; and a fourth mechanical part, where the fourth mechanical part is disposed in the second slide groove, and one end of the fourth mechanical part is rotatably connected to the rotating shaft. When the first mechanical part and the second mechanical part rotate around the rotating shaft, the third mechanical part slides with respect to the first slide groove.

Abstract: A wireless local area network (WLAN) station (STA) reports, with a medium access control (MAC) frame, a buffer status of an urgent traffic identifier (TID) to a second STA. In some embodiments, the second STA is also an access point (AP). The delay in reporting is reduced by providing a buffer status report for the urgent TID in a data frame being transmitted to carry data for a current TID. The buffer status report, in some embodiments, provides the value of the urgent TID. In some embodiments, the buffer status report provides an indication of the amount of data in a buffer corresponding to the urgent TID. In some embodiments, the buffer status report is based on an aggregated measure of more than one buffer with data awaiting transmission. The transmission of the MAC frame, in some embodiments, is unsolicited.

Abstract: This application provides a resource indication method, a terminal device, and a network device. The method includes: receiving, by the terminal device, the first indication information, and determining time domain positions of demodulation reference signals (DMRSs) based on the mapping type of the physical shared channel and with reference to a position index of the last symbol occupied by the physical shared channel or a quantity of symbols occupied by the physical shared channel in the resource unit, where the position index of the last symbol occupied by the physical shared channel in the resource unit corresponds to the first type, and the quantity of symbols occupied by the physical shared channel in the resource unit corresponds to the second type.

Abstract: According to one embodiment, a system receives, at a host system a public attestation key (PK_ATT) or a signed PK_ATT from a data processing (DP) accelerator over a bus. The system verifies the PK_ATT using a public root key (PK_RK) associated with the DP accelerator. In response to successfully verifying the PK_ATT, the system transmits a kernel identifier (ID) to the DP accelerator to request attesting a kernel object stored in the DP accelerator. In response to the system receives a kernel digest or a signed kernel digest corresponding to the kernel object from the DP accelerator, verifying the kernel digest using the PK_ATT. The system sends the verification results to the DP accelerator for the DP accelerator to access the kernel object based on the verification results.

Abstract: According to one embodiment, a broadcast request is received from a host via a communication switch to broadcast a broadcast message to one or more DP accelerators, where the host hosts an application that initiated the broadcast request. The broadcast request includes a list of one or more public keys associated with one or more DP accelerators of a plurality of DP accelerators coupled to the communication switch. For each of the one or more DP accelerators associated with the public keys of the list, a session key for a broadcast session corresponding to the broadcast message is encrypted using one of the public key associated with the DP accelerator. The broadcast message is encrypted using the broadcast session key. The encrypted broadcast messages and the encrypted broadcast session keys are broadcast to the DP accelerators.

Abstract: A foldable assembly which is configured to bear a flexible display. The foldable assembly includes a rotating shaft; a first mechanical part and a second mechanical part, where the first mechanical part and the second mechanical part are rotatably connected by using the rotating shaft; and a first protective structure, where the first protective structure is connected to an end face that is of the rotating shaft and that extends out of a periphery of the flexible display. A first surface of the flexible display is away from the rotating shaft, and the first protective structure is higher than or flush with the first surface of the flexible display, so that when the foldable display terminal falls, the first protective structure is in contact with a point of collision earlier than the flexible display.

Abstract: A method of forming a memory device that includes forming a first polysilicon layer using a first polysilicon deposition over a semiconductor substrate, forming an insulation spacer on the first polysilicon layer, and removing some of the first polysilicon layer to leave a first polysilicon block under the insulation spacer. A source region is formed in the substrate adjacent a first side surface of the first polysilicon block. A second polysilicon layer is formed using a second polysilicon deposition. The second polysilicon layer is partially removed to leave a second polysilicon block over the substrate and adjacent to a second side surface of the first polysilicon block. A third polysilicon layer is formed using a third polysilicon deposition. The third polysilicon layer is partially removed to leave a third polysilicon block over the source region. A drain region is formed in the substrate adjacent to the second polysilicon block.

Abstract: This application relates to the communications field and discloses a reference signal configuration method and apparatus, to improve accuracy of a channel estimation result in a complex and changeable scenario. The method may include: determining configuration information of a first reference signal, where the first reference signal is a reference signal corresponding to a first port that is used in one transmission process, a second port can also be used in the transmission process, and configuration information of a reference signal corresponding to the second port is different from the configuration information of the first reference signal; and configuring the first reference signal based on the configuration information of the first reference signal.

Abstract: A host processing device instructs a plurality of virtual data processing (VDP) accelerators, configured on each of a plurality of data processing accelerators. The VDP accelerators configure themselves for secure communications. The host device generates an adjacency table of each of the plurality of VDP accelerators. Then the host device then establishes a session key communication with each VDP accelerator and sends the VDP accelerator a list of other VDP accelerators that the VDP accelerator is to establish a session key with, for secure communications between the VDP accelerators. The VDP accelerator establishes a different session key for each pair of the plurality of VDP accelerators.

Abstract: An apparatus comprises a memory and at least one processor in communication with the memory. The at least one processor is to detect, during a discovery window, a neighboring client station that is to perform peer-to-peer Wi-Fi communication via a Neighbor Awareness Networking (NAN) protocol and establish, via a negotiation after the discovery window, a datapath with the neighboring client station, wherein the negotiation includes an exchange of NAN data path setup attributes in parallel with an exchange of encryption cipher attributes and the encryption cipher is based on a simultaneous authentication of equals (SAE) protocol. The SAE protocol can be used to generate key material to encrypt the datapath.