Abstract: A method for implementing multiple PDNs between an indoor unit and an outdoor unit may include: allocating at least two first VLAN interfaces to a first physical network interface; establishing packet data network (PDN) data channels which are in one-to-one correspondence with the first VLAN interfaces, wherein the PDN data channels are configured for data interaction with a base station; acquiring address allocation requests corresponding to the PDN data channels from the IDU; and allocating first IP addresses corresponding to the PDN data channels to the IDU according to the address allocation requests, such that data messages from the IDU are routed to the corresponding PDN data channels according to the first IP addresses.

Abstract: A message transmission method and system, and a network device and an electronic medium are disclosed. The message transmission method may include: receiving a Layer 2 message sent by a first user equipment; acquiring a forwarding port number and a newly added message header, and determining a message encapsulation mode; encapsulating the Layer 2 message based on the message encapsulation mode, the forwarding port number, and the newly added message header to obtain a Layer 3 message; and sending the Layer 3 message to a second forwarding device.

Abstract: A method for managing an ECU on a vehicle, and an ECU and a computer-readable storage medium are disclosed. The method may include: monitoring a working state of at least one ECU on a vehicle (S201); and in response to detecting an abnormal ECU in an abnormal working state, sending a control instruction to the abnormal ECU, where the control instruction is configured to trigger the abnormal ECU to execute a corresponding restore action (S202).

Abstract: Disclosed are a method for implementing multiple PDNs between an indoor unit and an outdoor unit, an outdoor unit, an indoor unit, and a computer readable storage medium. The method may include: allocating at least two first VLAN interfaces to a first physical network interface; establishing packet data network (PDN) data channels which are in one-to-one correspondence with the first VLAN interfaces, wherein the PDN data channels are configured for data interaction with a base station; acquiring address allocation requests corresponding to the PDN data channels from the IDU; and allocating first IP addresses corresponding to the PDN data channels to the IDU according to the address allocation requests, such that data messages from the IDU are routed to the corresponding PDN data channels according to the first IP addresses.

Abstract: A user identity recognition method for a mobile terminal includes that: a mobile terminal detects and tracks a user's behavior before a Subscriber Identity Module (SIM) card is replaced, and records characteristics of the user's behavior; after the SIM card is replaced, the mobile terminal detects and tracks a user's behavior and records characteristics of the user's behavior; the mobile terminals determines whether the characteristics of the user's behavior before the SIM card is replaced are same as or similar to the characteristics of the user's behavior after the SIM card is replaced; if so, the mobile terminals determines that the user is a legal user; otherwise, the mobile terminals determines that the user is an illegal user. Correspondingly, a mobile terminal is also disclosed, which is difficult to crack, more secure, and easy and convenient to implement.

Abstract: A user identity recognition method for a mobile terminal includes that: a mobile terminal detects and tracks a user's behavior before a Subscriber Identity Module (SIM) card is replaced, and records characteristics of the user's behavior; after the SIM card is replaced, the mobile terminal detects and tracks a user's behavior and records characteristics of the user's behavior; the mobile terminals determines whether the characteristics of the user's behavior before the SIM card is replaced are same as or similar to the characteristics of the user's behavior after the SIM card is replaced; if so, the mobile terminals determines that the user is a legal user; otherwise, the mobile terminals determines that the user is an illegal user. Correspondingly, a mobile terminal is also disclosed, which is difficult to crack, more secure, and easy and convenient to implement.

Abstract: Proposed are a method and device for adjusting transmission power of a mobile terminal. The method includes: a mobile terminal detecting information about a current terminal location according to an operating environment where a user is currently located; obtaining pre-configured power parameter information corresponding to the current terminal location according to the information about the current terminal location and one or more location information transmission power correlation policy tables internally installed in the mobile terminal; and actively adjusting a transmission power parameter according to the obtained pre-configured power parameter information.