Abstract: Embodiments of the present invention provide an installation part and a module, relating to the field of mechanical designs and capable of reducing the quantity of installation parts and increasing the efficiency of assembling and disassembling an article that needs to be installed. The installation part includes: a slot configured to be clamped with a hoop, where the hoop is configured to fix a pole part onto a pole together with the pole part; and a first screw hole configured to be connected to a conversion bracket, where the conversion bracket is configured to connect the pole part and an article that needs to be installed. The embodiments of the present invention are applied to the installation of modules.

Abstract: Embodiments of the present invention provide an installation part and a module, relating to the field of mechanical designs and capable of reducing the quantity of installation parts and increasing the efficiency of assembling and disassembling an article that needs to be installed. The installation part includes: a slot configured to be clamped with a hoop, where the hoop is configured to fix a pole part onto a pole together with the pole part; and a first screw hole configured to be connected to a conversion bracket, where the conversion bracket is configured to connect the pole part and an article that needs to be installed. The embodiments of the present invention are applied to the installation of modules.

Abstract: A method, a communication system, and a network entity for group handover are provided. The method includes the following steps. A first tunnel connection is established between a mobile relay station (MRS) and a serving entity (SE). A target entity (TE) obtains group information about the group to be handed over, and the group information includes information about a first tunnel. According to the group information, the TE configures information about a second tunnel for the group, and the information about the second tunnel is required for group handover. The group nodes are handed over from the SE to the TE according to the information about the second tunnel. Thereby, the group information that needs to be transmitted in a handover process is reduced, and problems resulting from the number of handovers can be avoided.

Abstract: A method for implementing message authentication is provided. The method includes the following steps. A path by which a destination address of a message to be sent can be reached is determined. A signature processing is performed on the message to be sent according to a private key corresponding to the path, so as to obtain an authentication code. The message to be sent and the authentication code are sent through the path.

Abstract: A method, a communication system, and a network entity for group handover are provided. The method includes the following steps. A first tunnel connection is established between a mobile relay station (MRS) and a serving entity (SE). A target entity (TE) obtains group information about the group to be handed over, and the group information includes information about a first tunnel. According to the group information, the TE configures information about a second tunnel for the group, and the information about the second tunnel is required for group handover. The group nodes are handed over from the SE to the TE according to the information about the second tunnel. Thereby, the group information that needs to be transmitted in a handover process is reduced, and problems resulting from the number of handovers can be avoided.