Abstract: This application provides an information transmission method and apparatus. The method includes: sending, by a network device, first information, where the first information indicates a first parameter, and the first parameter is at least one of 237, 216, 195, 173, 152, 137, 132, 127, 121, 117, 112, 108, 103, 99, 94, 91, 89, 86, 84, 81, 77, 74, 72, 69, 68, 67, 66, 64, 63, 62, 61, 59, 58, and 57, or at least one of 153, 137, 122, 109, 97, 85, 81, 77, 74, 71, 68, 65, 63, 60, 57, 55, 53, 51, 50, 48, 47, and 45. According to the information transmission method and apparatus provided in this application, information used to generate a random access preamble sequence can be configured for a terminal device.

Abstract: An embodiment of this application provides a data transmission method and apparatus. The method includes: receiving, by a base station, a random access preamble sequence sent by a terminal; and sending, by the base station, a media access control MAC packet data unit PDU to the terminal based on the random access preamble sequence, where the MAC PDU includes a type indication field, and the type indication field is used to indicate a manner in which the terminal transmits data in first uplink information. In this embodiment of this application, a data transmission delay can be reduced.

Abstract: Embodiments of the present invention relate to a channel estimation method, a base station, user equipment UE, and a system. The method includes: setting up, by a base station, a connection to user equipment UE; and sending, to the UE, notification information indicating that the UE is in a radio remote scenario, where the notification information is used to instruct the UE to perform channel estimation by using a channel estimation algorithm applicable to the radio remote scenario, and the channel estimation algorithm is used to perform channel estimation on a signal that is obtained after downlink signals from multiple radio remote units RRUs are superposed. The UE can perform channel estimation by using the appropriate channel estimation algorithm, to effectively improve accuracy of the channel estimation, thereby effectively improving a downlink data throughput of the UE.

Abstract: Embodiments of the present application provide a random access sequence generation method, and an apparatus. The method includes: generating, by a base station, notification signaling, where the notification signaling includes indication information, the indication information is used to instruct user equipment UE to select a shift sequence number from a range of 0 to (nshiftRAngroupRA+nshiftRA+nshiftRA+shiftRA?1), the shift sequence number is an integer, nshiftRA is a quantity of UE candidate sequence shifts in a group, ngroupRA is a quantity of groups, nshiftRA is a quantity of UE candidate sequence shifts in the last length that is insufficient for a group, nshiftRA is a quantity of UE candidate sequence shifts in first remaining sequence shifts, and shiftRA is a quantity of UE candidate sequence shifts in second remaining sequence shifts; and sending, by the base station, the notification signaling to the UE, so that the UE generates a random access sequence according to the indication information.

Abstract: A channel estimation method, a base station, user equipment (UE), and a system are provided. The method includes: setting up, by a base station, a connection to user equipment UE; and sending, to the UE, notification information indicating that the UE is in a radio remote scenario, where the notification information is used to instruct the UE to perform channel estimation by using a channel estimation algorithm applicable to the radio remote scenario, and the channel estimation algorithm is used to perform channel estimation on a signal that is obtained after downlink signals from multiple radio remote units RRUs are superposed. The UE can perform channel estimation by using the appropriate channel estimation algorithm, to effectively improve accuracy of the channel estimation, thereby effectively improving a downlink data throughput of the UE.

Abstract: World objects tracking and prediction by an autonomous vehicle (AV) is disclosed. A method includes identifying, based on first observation data received from sensors of the AV, an oncoming vehicle; identifying, based on second observation data received from the sensors of the AV, a road object; generating a lane-following hypothesis for the oncoming vehicle, the lane-following hypothesis indicating an intention that the oncoming vehicle remain in a current road lane; computing a lane-following reference driveline for the lane-following hypothesis of the oncoming vehicle; in response to determining that the lane-following reference driveline is blocked by the road object, generating a go-around hypothesis for the oncoming vehicle, and computing a go-around reference driveline for the go-around hypothesis; and providing at least one of a go-around trajectory corresponding to the go-around hypothesis or a lane-following trajectory corresponding to the lane-following hypothesis.

Abstract: Disclosed herein is a persistent memory (PMEM)-based distributed memory object system, referred to as the PMEM DMO system, that provides affordable means of integrating low-latency PMEM spaces with other devices, including servers that do not directly support PMEM. One embodiment comprises providing a cluster of servers with PMEM storage (PMEM servers) and connecting the PMEM servers to a plurality of applications servers using a low-latency network, such as a remote direct memory access; background processes on each of the application servers are tasked to perform input/output operations for the application servers to locally materialize objects from and synchronize/persist objects to the remote PMEM spaces on the PMEM servers. Data materialized from the PMEM servers is stored to the local cache of the application server for use. Also disclosed are data eviction policies for clearing the local cache of the application servers to make space for new data read.

Abstract: Disclosed herein is an apparatus and method for a shuffle manager for a distributed memory object system. In one embodiment, a method includes forming a system cluster comprising a plurality of nodes, wherein each node includes a memory, a processor and a network interface to send and receive messages and data, wherein the network interface operates on remote direct memory access; creating a plurality of sharable memory spaces having partitioned data, wherein each space is a distributed memory object having a compute node, wherein the sharable memory spaces are at least one of persistent memory or DRAM cache; and storing data in an in-memory data structure when there is available memory in a compute node; and if there is an out of memory condition, serializing at least some of the in-memory data and spilling it to a distributed memory object system to persist shuffled data outside the compute node.

Abstract: Disclosed herein is an apparatus and method for a distributed memory object system. In one embodiment, a method includes forming a system cluster comprising a plurality of nodes, wherein each node includes a memory, a processor and a network interface to send and receive messages and data; creating a plurality of sharable memory spaces having partitioned data, wherein each space is a distributed memory object having a compute node, wherein the sharable memory spaces are at least one of persistent memory or DRAM cache; at a client, establishing an inter process communication between the client and a distributed memory object service; receiving a meta chunk including attributes about a file and a chunk map from a distributed memory object service, wherein the meta chunk includes chunk information including identity and location of a data chunk; and the client mapping the data chunk into virtual memory address space and accessing it directly.

Abstract: Detection of merge scenarios by an autonomous vehicle (AV) is disclosed. A system includes a memory and a processor. The memory includes instructions executable by the processor to, in response to detecting a merge scenario, identify an interacting object pair including a merging object and a crossing object, where the AV is the merging object; generate a yield hypothesis and a no-yield hypothesis; compute a yield reference path corresponding to the yield hypothesis and a no-yield reference path corresponding to the no-yield hypothesis; determine a yield likelihood of the yield hypothesis and a no-yield likelihood of the no-yield hypothesis; and operate the AV to merge or to wait until the merge scenario is no longer detected based on the yield likelihood and the no-yield likelihood.

Abstract: World objects tracking and prediction by an autonomous vehicle (AV) is disclosed. A method includes identifying, based on first observation data received from sensors of the AV, an oncoming vehicle; identifying, based on second observation data received from the sensors of the AV, a road object; generating a lane-following hypothesis for the oncoming vehicle, the lane-following hypothesis indicating an intention that the oncoming vehicle remain in a current road lane; computing a lane-following reference driveline for the lane-following hypothesis of the oncoming vehicle; in response to determining that the lane-following reference driveline is blocked by the road object, generating a go-around hypothesis for the oncoming vehicle, and computing a go-around reference driveline for the go-around hypothesis; and providing at least one of a go-around trajectory corresponding to the go-around hypothesis or a lane-following trajectory corresponding to the lane-following hypothesis.

Abstract: Embodiments of the present application provide a random access sequence generation method, and an apparatus.

Abstract: This application relates to the mobile communications field, and in particular, to a random access technology in a wireless communications system. This application provides a method for sending a random access preamble sequence, an apparatus, and a system. In this solution, a terminal device obtains a cyclic shift value that satisfies a high-speed movement scenario and sends a random access preamble sequence corresponding to the cyclic shift value. Impact brought by the high-speed movement scenario is considered when the random access preamble sequence is determined, thereby avoiding interference between terminal devices in the high-speed scenario.

Abstract: Provided is a method for preparing a reduced titanium powder by a multistage deep reduction, including the following steps of: uniformly mixing a dried titanium dioxide powder with a magnesium powder to obtain a mixture, adding the mixture in a self-propagating reaction furnace, triggering a self-propagating reaction, obtaining an intermediate product of which low-valence titanium oxides TixO are dispersed in an MgO matrix, leaching the intermediate product with a hydrochloric acid as a leaching solution, performing filtering, washing and vacuum drying to obtain a low-valence titanium oxide TixO precursor, uniformly mixing the low-valence titanium oxide TixO precursor with a calcium powder, performing a pressing to obtain semi-finished products, placing the semi-finished products in a vacuum reduction furnace for a second-time deep reduction, and leaching a deep reduction product with a hydrochloric acid as a leaching solution so as to obtain the reduced titanium powder.

Abstract: Methods, systems, and apparatuses manage rolling out of updates in a network-accessible server infrastructure which operates a plurality of instances of a supporting service. The supporting service is comprised by a plurality of service portions. The instances of the supporting service each include of the service portions. The instances of the supporting service are partitioned into a plurality of slices. Each instance is partitioned to include one or more of the slices, and each slice of an instance includes one or more of the service portions. A software update is deployed to the instances by applying the software update to the slices in a sequence such that the software update is applied to a same slice in parallel across the instances containing that same slice before being applied to a next slice, and waiting a wait time before applying the software domain to a next slice in the sequencing.

Abstract: A server automatically generates a response to a request received from a first user. The server generates response templates for the second user. The server receives the request from the first user, where the request includes request values for request fields. The server selects the second user to respond to the request received from the first user. The server automatically selects one of the response templates for generating the response to the request. The selected one of the response templates is determined to be the response template that most closely matches the request received from the first user. The server automatically generates the response using the selected response template including populating one or more placeholder values with information extracted from the request received from the first user. The server transmits the generated response to the first user.

Abstract: The invention relates to a method for preparing titanium alloys based on aluminothermic self-propagating gradient reduction and slag-washing refining, and belongs to the technical field of titanium-aluminum alloys. The method comprises the following steps of pre-treating raw materials, weighing the raw materials in the mass ratio of rutile or high-titanium slags or titanium dioxide to aluminum powder to V2O5 powder to CaO to KClO3 being 1.0:(0.60-0.24):(0.042-0.048):(0.12-0.26):(0.22-0.30), performing an aluminothermic self-propagating reaction in a gradient feeding manner to obtain high-temperature melt, performing a gradient reduction melting, performing heat insulation and separating the melt after the feeding is completed, then adding CaF2—CaO—TiO2—V2O5 based refining slags into the high-temperature melt, performing slag washing refining, and finally removing slags to obtain titanium alloys.

Abstract: A random access preamble sequence generation method and user equipment are provided. The method includes the following steps: when receiving first notification signaling sent by a base station, determining, by UE, to calculate a cyclic shift value by using a first solution; obtaining a first logical root sequence number, and determining a root sequence based on the first logical root sequence number; and generating a random access preamble sequence based on the root sequence and the cyclic shift value, where the first solution is a solution of calculating the cyclic shift value when a Doppler shift of the UE is less than a first preset value and greater than a second preset value, the first preset value is less than twice of a physical random access channel PRACH subcarrier spacing, the second preset value is greater than the PRACH subcarrier spacing.

Abstract: At least one example embodiment discloses a method of estimating a position of a rotor in a motor. The method includes obtaining a current regulation quality index based on a current command and a measured current, determining an estimated position of the rotor based on the current regulation quality index and position estimation data and controlling the motor based on the estimated position of the rotor.

Abstract: Time domain action detecting methods and systems, electronic devices, and computer storage medium are provided. The method includes: obtaining a time domain interval in a video with an action instance and at least one adjacent segment in the time domain interval; separately extracting action features of at least two video segments in candidate segments, where the candidate segments comprises video segment corresponding to the time domain interval and adjacent segments thereof; pooling the action features of the at least two video segments in the candidate segments, to obtain a global feature of the video segment corresponding to the time domain interval; and determining, based on the global feature, an action integrity score of the video segment corresponding to the time domain interval. The embodiments of the present disclosure benefit accurately determining whether a time domain interval comprises an integral action instance, and improve the accuracy rate of action integrity identification.