Abstract: A process for preparing a catalytic cracking catalyst includes steps of mixing raw materials including a rare earth-containing NaY molecular sieve obtained by contacting a NaY molecular sieve with a rare-earth salt solution or a mixed solution of rare-earth salt solution and ammonium salt solution, filtering, and water-washing, an inorganic oxide binder and a natural mineral, slurrying and shaping into shaped bodies; hydrothermally calcining shaped bodies in an atmosphere condition where a pressure is externally applied and an aqueous solution containing an acidic substance or an alkaline substance is externally added; and then ammonium-exchanging to remove the alkali metal. The present invention optimizes and shortens the preparation process of the catalyst, which can reduce the preparation cost, and the prepared catalyst has excellent heavy oil conversion ability, higher gasoline and diesel yield, lower coke selectivity, and relatively reduces the used amount of the molecular sieve in the catalyst.

Abstract: A relay management method includes a network device that obtains an identifier of a first terminal device; obtains relay limitation information of the first terminal device based on the identifier, where the relay limitation information indicates a quantity of relay devices that can be coupled to the first terminal device and/or an aggregate maximum bit rate (AMBR) that can be used by the first terminal device for a relay; and the network device determines, based on the relay limitation information, whether to allow the first terminal device to access a network through a second terminal device, where the second terminal device is a relay device of the first terminal device.

Abstract: Embodiments of this application provide a relay communication method and a communication apparatus, and relate to the communications field. A network side may modify, based on a relay service of UE, an AMBR used by the UE, to satisfy an actual service requirement of the UE. The method includes: An access network device obtains an aggregate maximum bit rate AMBR of a first session and a user equipment UE granularity-based AMBR used when a first terminal device provides a relay service, where the first session is for transmitting data of a second terminal device, and the first terminal device is a relay device of the second terminal device; and the access network device modifies the AMBR of the first session based on the UE granularity-based AMBR.

Abstract: This application provides a proximity service communication method, a communication apparatus, and a communication system. When a terminal device requests a communication resource corresponding to a first sidelink, a management network element may determine, based on location information of the terminal device, whether the terminal device is located in a geographic area in which the terminal device can use a first application through a sidelink, to determine whether to provide a proximity service parameter for the terminal device. This limits, at an application granularity, sidelink communication used by the terminal device.

Abstract: A relay apparatus receives a first message from a first terminal device; and sends the first message when the relay apparatus determines that data of a target application is allowed to be transmitted through the relay apparatus. The relay apparatus stops sending the first message when the relay apparatus determines that the data of the target application is not allowed to be transmitted through the relay apparatus. The first message includes relay service indication information, and the relay service indication information is used to indicate the first terminal device to request to establish a relay link.

Abstract: This application provide a service guarantee method and apparatus. The method is applied to a scenario in which a remote terminal device accesses a network via a relay device. The method includes: A PCC rule generated by a policy control network element based on subscription data of the remote terminal device includes a second quality of service QoS parameter of a second communication interface between the remote terminal device and the relay device, so that a session management network element can generate, according to the received PCC rule, a second QoS rule corresponding to the second communication interface, and the session management network element can send the second QoS rule to the relay device. The QoS rule required by the second communication interface is generated based on the subscription data of the remote terminal device, and the remote terminal device can access a service via the relay device.

Abstract: This application discloses a service processing method for a proximity service, a device, and a system, and relates to the field of wireless communication technologies, to resolve a problem such as inappropriate charging caused because a network side does not perform, in proximity service (ProSe) communication, service supervision or service management on a data packet transmitted by remote user equipment (UE) via relay UE. In this application, a first network element (for example, an access and mobility management function AMF network element or a session management function SMF network element) may obtain, based on relay information that is received from the remote UE and that includes a relay service code or first indication information indicating that the remote UE is to transmit a service in relay mode, policy configuration information for detecting or monitoring service data forwarded by the relay UE.

Abstract: A communication method includes that a first terminal learns, based on first quality of service (QoS) status information of multicast communication provided by a second terminal, that a range between the first terminal and the second terminal is greater than a first communication range threshold in QoS requirement information of multicast communication in a multicast group, and accordingly adjusts the first communication range threshold to a second communication range threshold having a larger value, to adjust a QoS requirement of multicast communication between the first terminal and the second terminal.

Abstract: A communication method, apparatus, and system, to implement service data transmission in a server localization scenario, where the method includes: A first network element determining a first address used by a user equipment to send a data packet of a first service to a user plane function network element; and the first network element sending, to the user plane function network element, a correspondence between the first address and address information of a first server that provides the first service, where an address indicated by the address information is used by the user plane function network element to send the data packet to the first server.