Abstract: The present invention provides a call system, a host device, a computer program product, a mobile terminal, and a cloud server. The call system (10) comprises a host device (11), a cloud server (12), and a plurality of clients (13). The host device (11) is configured to receive a first voice signal sent by a plurality of terminal devices (14), receive a second voice signal forwarded by the cloud server (12) and sent by the plurality of clients (13), perform audio mixing processing on the received first voice signal and the second voice signal, respectively generate a mixed audio signal corresponding to one of the terminal devices (14), send the mixed audio signal to the terminal device (14), generate a mixed audio signal corresponding to one of the clients (13), and forward the mixed audio signal to the client (13) by means of the cloud server (12). The call system may allow a user who is not within a coverage range of the wireless internal call system to access the call system for communication.

Abstract: Implementations of the present disclosure relate to recovery from BSS color collision. The method comprises determining a first basic service set (BSS) color of a BSS for communications between the first AP and a client device. The method further comprises determining a second BSS color of the BSS for communications between the first AP and a second AP. In this case, the second BSS color is different from the first BSS color. The method further comprises detecting that the first BSS color is used by a neighboring BSS. Lastly, the method further comprises changing the first color of the BSS to a third color for communications between the first AP and the client device. In this way, by sparing the BSS color switch time between the APs, the recovery from the BSS color collision event for the entire BSS is facilitated.

Abstract: In implementations of the present disclosure, there is provided an approach for transmitting multicast frames. A method comprises obtaining a multicast frame in a wireless local area network (WLAN), where the WLAN includes a plurality of sub-networks with a same service set identifier (SSID). Then, a target sub-network of the plurality of sub-networks for receiving the multicast frame is determined based on the multicast frame and a unique group temporal key (GTK) for the target sub-network is obtained based on the target sub-network. Next, the multicast frame is encrypted using the obtained unique GTK for the target sub-network, and the encrypted multicast frame is transmitted to one or more client devices in the target sub-network. Implementations of the present disclosure can help the AP to reduce leakage of multicast frames to all client device by using the GTK corresponding the target sub-network.

Abstract: A method for scanning enhancement is provided. The method comprises receiving a channel scan request, including a scan channel number, a bandwidth, and a total scan time. The method further comprises determining a number of a plurality of scans based on the total scan time and an individual scan time for an AP. The method further comprises determining a plurality of offset values corresponding to the plurality of scans based on the number of the plurality of scans. In addition, the method further comprises performing off-channel scanning based on the scan channel number, the bandwidth, the number of the plurality of scans, and the plurality of offset values. Implementations of the present disclosure can improve the effect and the efficiency of the scanning process, the performance of the features of the upper layer, and the user experience.

Abstract: Systems and methods are provided for generating an MBSSID virtual access point (VAP) to facilitate an uninterrupted MBSSID. An access point (AP) can determine characteristics, or network properties, of VAPs associated with the AP. The AP can generate an MBSSID VAP based on the characteristics of the VAPs. An MBSSID beacon can be generated using the MBSSID VAP as a transmitted VAP (TX VAP) of the MBSSID beacon. The MBSSID VAP serves as a TX-VAP that is not subject to changes and does not need to be interrupted to have changes made to it. As the MBSSID VAP serves as a TX VAP that is not subject to changes or interruptions, the MBSSID based on the MBSSID VAP does not need to be interrupted for changes to be made to other VAPs associated with the MBSSID.

Abstract: A controllable rapid pressure loading technology for a large volume press is provided. A regular octahedra, plugs, diamond pistons, and a standard are included. The regular octahedra is provided with a cavity with openings at two ends of the cavity. The standard is placed in the cavity. The openings at two ends of the cavity are respectively blocked by the conductive plugs. The diamond piston is arranged between the standard and the plug. The diamond pistons arranged between the standard and the plug has high hardness and has the pressure transmission efficiency superior to that of a common ceramic plug, improving compression efficiency in sample cavity. A loading method of pre-charging a pressure to a pressure loading device first and then rapidly releasing to a pressure loading mold is used to match an improved pressure transmission component, which shortens the pressure loading time of the sample cavity.

Abstract: The invention provides an AC/DC conversion device for intelligent green-power operation and maintenance in power transmission and transformation projects, including a cabinet, an assembling panel, an inverter, a driving mechanism and a controller. A door is mounted at the front portion of the cabinet in a fixed and sealed manner, and the assembling panel is fixedly mounted on the back wall of the cabinet inside the cabinet. The assembling panel, the inverter, the driving mechanism and the controller are all provided inside the cabinet, which provides desirable dust-proof effects, preventing the case where the inverter, the driving mechanism and the controller are interfered by the dust, so that this device is suitable for outdoor usage. The driving mechanism and the controller work in coordination, so that the inverter can be switched off in time when it burns out and smokes, thereby substantially reducing the risk of fire hazards.

Abstract: The invention provides an AC/DC conversion device for intelligent green-power operation and maintenance in power transmission and transformation projects, including a cabinet, an assembling panel, an inverter, a driving mechanism and a controller. A door is mounted at the front portion of the cabinet in a fixed and sealed manner, and the assembling panel is fixedly mounted on the back wall of the cabinet inside the cabinet. The assembling panel, the inverter, the driving mechanism and the controller are all provided inside the cabinet, which provides desirable dust-proof effects, preventing the case where the inverter, the driving mechanism and the controller are interfered by the dust, so that this device is suitable for outdoor usage. The driving mechanism and the controller work in coordination, so that the inverter can be switched off in time when it burns out and smokes, thereby substantially reducing the risk of fire hazards.

Abstract: Disclosed is a display substrate, comprising: a base, a plurality of first pixel units located on the base in a first display region, and a plurality of second pixel units located on the base in a second display region. A first light-emitting element comprised in each first pixel unit comprises a first anode, a first organic light-emitting structure, and a first cathode which are sequentially arranged in the direction away from the base. The first cathode is provided with a plurality of first openings, and the orthographic projections of the first openings on the base do not overlap the orthographic projection of a light-emitting region of the first light-emitting element on the base. A second light-emitting element comprised in each second pixel unit comprises a second anode, a second organic light-emitting structure, and a second cathode which are sequentially arranged in the direction away from the base.

Abstract: Implementations of the present disclosure relate to packet capture for a multi-link device. In the implementations, an access point (AP) obtains a media access control (MAC) address of a multi-link device (MLD) to be monitored. Further, the AP determines a plurality of links of the MLD to be monitored based on the MAC address. Based on the MAC address of the MLD, the AP captures packets transmitted by the AP MLD on the plurality of links, as a monitor AP. For each of the captured packets, the AP inserts the MAC address of the MLD into an MLD MAC field in a packet capture headroom associated with the packet. In this way, the present disclosure can support flexible packet capture (PCAP) for a specific MLD instead of for a specific link.

Abstract: A method for harmonic channel detection is provided. The method comprises receiving, by a first AP working on a first channel, a beacon frame transmitted by a second AP and parsing the beacon frame to obtain information of a second channel indicated in the beacon frame. The method further comprises determining a plurality of candidate harmonic channels and validating that the second channel is one of the candidate harmonic channels. In addition, the method further comprises validating that the beacon frame is transmitted on the second channel based on a sequence number and a TBTT indicated in the beacon frame and discarding the beacon frame. Implementations of the present disclosure can reduce harmonic frames from being reported to a controller at upper layer, and improve the performance of the network.

Abstract: Systems and methods are provided for performing live upgrading of Access Points (APs) in WiFi-7. A method of upgrading an AP having Multi-Link Operation (MLO) and a Multi-Link Device (MLD) comprising a UMAC sublayer (MLD UMAC) and an LMAC sublayer (MLD LMAC), includes determining whether the MLD is in tunnel mode, and when the MLD is not in tunnel mode, switching the MLD to tunnel mode. Contents of the MLD UMAC are transferred to a controller; and contents of the MLD LMAC, comprising one or more MLD links, are transferred to one or more neighbor APs. Live upgrade of the upgrading AP is performed, after which the upgrading AP is rebooted. The MLD links previously transferred to the one or more neighbor APs are transferred back to the upgraded AP, and the contents of the MLD UMAC are copied from the controller to the UMAC of the upgraded AP.

Abstract: Implementations of the present disclosure relate to parallel channel switching for mesh network. In the implementations, a first access point (AP) receives a first beacon including an indication of a first channel switch count (CSC) for a first link between the first AP and the second AP from a second AP. The first AP obtains a second CSC for a second link between the first AP and a station. Then, the first AP transmits a second beacon including an indication of the second CSC to the station and within a beacon interval of the second AP upon receipt of the first beacon. In this way, the idle time period for the channel switching procedure of the mesh network can be reduced and minimized, thereby improving the Wi-Fi mesh link stability and reducing the latency.

Abstract: Systems, methods, and computer readable mediums for persistent TWT sessions include establishing, by an access point, a plurality of sessions with a plurality of stations, wherein one or more of the plurality of sessions comprise a target wake time (TWT), determining, by the access point, that a downtime event will occur before a TWT of a particular station of the plurality of stations, in response to the downtime event occurring during the TWT of the particular station, sending, by the access point, information associated with the plurality of sessions to a secondary device, after the downtime event, retrieving, by the access point, the information associated with the plurality of sessions from the secondary device, and reestablishing, by the access point using the information, the plurality of sessions.

Abstract: Systems and methods are provided for dynamic power allocation across a network deployment through a power consumption credits system that can balance a power budget throughout the network deployment by allocating credits to high power consuming network devices and generating credits by low-power consumption network devices. An example of the systems and methods associate a credit pool with a network deployment and map a number of credits to the credit pool based on a power budget. Credits can be allocated from the credit pool to network devices on the network deployment and/or accumulated into the credit pool from the network devices based on power consumption requirements of the network devices relative to a baseline.

Abstract: Systems, methods, and computer readable mediums for a TWT based multi-connection mechanism include sending, by a station, a first request for a first Target Wake Time (TWT) session with a first access point, wherein the first TWT session is established, determining, by the station and based on the first TWT session, a timing for a second TWT session such that a plurality of service periods of the first TWT session do not overlap with a plurality of service periods of the second TWT session, sending, by the station, a second request for the second Target Wake Time (TWT) session with a second access point, and wherein the second. TWT session is established, and receiving, by the station, data from the first AP during a service period of the first TWT session and data from the second AP during a service period of the second TWT session.

Abstract: Implementations of the present disclosure relate to resource allocation for clients of multiple co-hosted virtual access points (VAPs). A method comprises determining, by an access point (AP), a plurality of trigger frames for a plurality of clients connected to a plurality of VAPs of the AP based at least in part on respective workload levels of the plurality of clients. A trigger frame indicates a resource unit of one of the plurality of VAPs available for at least one corresponding client to access to the VAP. The method also comprises transmitting, by the AP, the plurality of trigger frames in parallel to the plurality of clients. By transmitting separate trigger frames for different clients in parallel, the efficiency of trigger frames can be improved and higher quality of service and lower collision will be provided.

Abstract: The instant disclosure is directed to seamless filtration media and methods for their use. A medium may comprise at least one seamless filtration component, which may comprise a plurality of bonded polymeric fibers and have a porosity from about 60% to about 95%. The medium may comprise multiple, concentrically arranged seamless filtration components, each having a hollow cylindrical configuration. A method of filtering a fluid stream may comprise placing such a medium in the fluid stream, thereby removing particles from the fluid stream. The at least one seamless filtration component of the medium may comprise a plurality of bonded polymeric fibers and have a porosity from about 60% to about 95%. The fluid stream may have a temperature of up to about 150° C. and the particles may have an average diameter from about 0.1 ?m to about 5 ?m. The fluid stream may be located within a CCV system.

Abstract: A magnetic field-assisted vibratory finishing device for a minute structure and a finishing method is provided. The device includes a rotating shaft, a workpiece clamping device, a magnetic field generating device, a vibration assisting device, a three-axis precision displacement platform and a base. The magnetic field generating device includes a baffle plate, magnetic bars and a magnetic-pole groove. The vibration assisting device includes a housing, guide fixing rods, a vibration motor, a vibration connecting plate, and compression springs. The workpiece clamping device clamps parts with a variety of structural shapes, and a frequency controller can control the motion mode of the magnetic field generating device during the finishing processing, thereby controlling the motion track of grinding material.

Abstract: Techniques for determining buggy code are described. An encoder/decoder-based (e.g., transformer-based) model approach is described. In some embodiments, a service receives request to perform transformer-based bug fixing on code, performs bug fixing inference to the code by applying a trained encoder/decoder-based model, and reports out a result of the inference, wherein the output includes an indication of a location of a potential edit to be made in the code and the potential edit in the code.