Abstract: A method and apparatus for processing a table, a device, a storage medium and a product. An implementation of the method comprise: receiving a content query request for a target table; acquiring a target tree structure of the target table according to the content query request; where, the target tree structure is obtained by performing absorbing processing and merging processing on at least one target cell in the target table; acquiring to-be-queried content in the content query request; and querying target content matching the to-be-queried content from the target tree structure.

Abstract: Disclosed are a service data transmission method, a terminal and a charging system, and a computer storage medium. The method comprises: when detecting that a terminal roams from a local place to a different place, requesting and acquiring V-SIM card information about the different place from a V-SIM card server; disconnecting network connections which are established using a SIM card, and establishing network connections using the acquired V-SIM card information; and transmitting service data using the established network connections.

Abstract: Disclosed are a service data transmission method, a terminal and a charging system, and a computer storage medium. The method comprises: when detecting that a terminal roams from a local place to a different place, requesting and acquiring V-SIM card information about the different place from a V-SIM card server; disconnecting network connections which are established using a SIM card, and establishing network connections using the acquired V-SIM card information; and transmitting service data using the established network connections.

Abstract: A data card running mode switching method is disclosed. The data card booting into a first running mode, the data card judging whether the first running mode matches with a type of an operating system running on a computer or not, if not, the data card switching to a second running mode that matches with the type of the operating system running on the computer, and running under the second running mode. Embodiments of the present document solve the problems of incompatibility and nonsupport between a running mode of a data card and an operating system running on a computer.

Abstract: Disclosed are a maximum transmission unit (MTU) negotiation method and a data terminal. The method comprises: a data terminal receiving a first request message sent by a user terminal during establishment of a communication protocol link and carrying an MTU of the user terminal; updating the MTU of the user terminal carried in the first request message to be a path MTU; sending a second request message carrying the path MTU to a server; receiving a first reply message returned by the server and carrying an MTU of the server; updating the MTU of the server carried in the first reply message to be the path MTU; and sending a second reply message carrying the path MTU to the user terminal. The method and data terminal provided by the present invention can improve network performance.

Abstract: Provided are a device and method for upgrading a data terminal. The device includes a dialing component, a protocol component, a DHCP Dynamic Host Configuration Protocol (DHCP) server component, a router component, an Internet Protocol (IP) processing component, an upgrading component and a web server component, wherein the dialling component implements a dialling flow; and the upgrading component acquires a private IP address from the DHCP server component, sends a request message of detecting whether there is a new version to a version server through the router component and the protocol component, and if there is the new version, downloads the new version from the version server and writes the new version into a flash of a data terminal, and then the data terminal is automatically restarted to finish upgrading.

Abstract: Provided are a device and method for upgrading a data terminal. The device includes a dialing component, a protocol component, a DHCP Dynamic Host Configuration Protocol (DHCP) server component, a router component, an Internet Protocol (IP) processing component, an upgrading component and a web server component, wherein the dialling component implements a dialling flow; and the upgrading component acquires a private IP address from the DHCP server component, sends a request message of detecting whether there is a new version to a version server through the router component and the protocol component, and if there is the new version, downloads the new version from the version server and writes the new version into a flash of a data terminal, and then the data terminal is automatically restarted to finish upgrading.

Abstract: Disclosed are a maximum transmission unit (MTU) negotiation method and a data terminal. The method comprises: a data terminal receiving a first request message sent by a user terminal during establishment of a communication protocol link and carrying an MTU of the user terminal; updating the MTU of the user terminal carried in the first request message to be a path MTU; sending a second request message carrying the path MTU to a server; receiving a first reply message returned by the server and carrying an MTU of the server; updating the MTU of the server carried in the first reply message to be the path MTU; and sending a second reply message carrying the path MTU to the user terminal. The method and data terminal provided by the present invention can improve network performance.

Abstract: Disclosed is a data terminal running mode switching method, a device and a data terminal. The method comprises: a data terminal booting into a first running mode, the data terminal judging whether the first running mode matches with a type of an operating system running on a computer or not, if yes, the data terminal continuing to normally run under the first running mode; if no, switching to a second running mode that matches with the type of the operating system running on the computer, and running under the second running mode. Embodiments of the present invention document solve the problems of incompatibility and nonsupport between a running mode of a data card and an operating system running on a computer.