Abstract: Embodiments of this application provide a reconfiguration method, a terminal device, and a communications system. The method includes: A terminal device sends a first capability report message when requesting to attach to a first cell. When a reconfiguration request message is received for N consecutive times and all reconfigurations fail, the terminal device detaches from the first cell, where the reconfiguration request message is used to indicate, to the terminal device, a frequency of a secondary cell in which carrier aggregation is performed, and N is a positive integer. The terminal device sends a second capability report message when re-requesting to attach to the first cell, and carrier aggregation capabilities of the terminal device are disabled.

Abstract: A radio resource configuration adjustment method includes detecting, by user equipment, an overheating problem or that the overheating problem is alleviated, and sending, by the user equipment, a first message to a network device, where the first message is used to notify the network device that the overheating problem occurs in the user equipment or the overheating problem is alleviated; receiving, by the user equipment, a response message sent by the network device, where the response message is used to instruct the user equipment to perform one of the following operations, and the operations include deactivating a secondary serving cell, activating a secondary serving cell, releasing a secondary serving cell, and adding a secondary serving cell; and deactivating, by the user equipment, a secondary serving cell, or activating a secondary serving cell, or releasing a secondary serving cell, or adding a secondary serving cell according to the response message.

Abstract: A radio resource configuration adjustment method includes detecting, by user equipment, an overheating problem or that the overheating problem is alleviated, and sending, by the user equipment, a first message to a network device, where the first message is used to notify the network device that the overheating problem occurs in the user equipment or the overheating problem is alleviated; receiving, by the user equipment, a response message sent by the network device, where the response message is used to instruct the user equipment to perform one of the following operations, and the operations include deactivating a secondary serving cell, activating a secondary serving cell, releasing a secondary serving cell, and adding a secondary serving cell; and deactivating, by the user equipment, a secondary serving cell, or activating a secondary serving cell, or releasing a secondary serving cell, or adding a secondary serving cell according to the response message.

Abstract: A method and an apparatus for obtaining installation information of a network access device. The network access device may be CPE. When a user installs the CPE, after the user uses a terminal device to send a request for obtaining installation information of the CPE to a network device, and to receive the installation information of the CPE that is fed back by the network device, the received installation information of the CPE can be displayed on a display interface.

Abstract: Embodiments of this application provide a reconfiguration method, a terminal device, and a communications system. The method includes: A terminal device sends a first capability report message when requesting to attach to a first cell. When a reconfiguration request message is received for N consecutive times and all reconfigurations fail, the terminal device detaches from the first cell, where the reconfiguration request message is used to indicate, to the terminal device, a frequency of a secondary cell in which carrier aggregation is performed, and N is a positive integer. The terminal device sends a second capability report message when re-requesting to attach to the first cell, and carrier aggregation capabilities of the terminal device are disabled.

Abstract: A high-speed data transmission degradation method, a device, and a system, to implement, in high-speed data transmission and depending on a terminal requirement, resource degradation in which interaction load is low and a terminal remains connected to a network, so as to ensure a data transmission rate of the terminal and improve terminal user experience. The method includes receiving, by a network-side device, a degradation request sent by a terminal that is in a high-speed data transmission mode; obtaining, by the network-side device, a target to-be-degraded resource of the terminal based on the received degradation request; and degrading, by the network-side device, the target to-be-degraded resource.

Abstract: A network access control method includes obtaining network information of an electronic device, determining, using the network information, whether the electronic device needs to use a first access point name (APN) network channel, and generating a network channel switching instruction in response to determining that the electronic device needs to use the first APN network channel. The network channel switching instruction instructs to switch the electronic device from a second APN network channel to the first APN network channel. The second APN network channel has access to more network resource addresses than the first APN network channel.

Abstract: A method for adjusting power of a terminal includes monitoring, by the terminal, usage of an uplink carrier, where the carrier usage includes at least one of a quantity of carriers, duration of continuous use of one or more carriers, and a temperature of the terminal. The method further includes adding, by the terminal, a power back-off value during calculation of power headroom when the terminal detects that the carrier usage satisfies a preset condition, to reduce a value of power headroom of the one or more carriers. The method further includes reporting, by the terminal, the value of the power headroom to a network device.

Abstract: A radio resource configuration adjustment method includes detecting, by user equipment, an overheating problem or that the overheating problem is alleviated, and sending, by the user equipment, a first message to a network device, where the first message is used to notify the network device that the overheating problem occurs in the user equipment or the overheating problem is alleviated; receiving, by the user equipment, a response message sent by the network device, where the response message is used to instruct the user equipment to perform one of the following operations, and the operations include deactivating a secondary serving cell, activating a secondary serving cell, releasing a secondary serving cell, and adding a secondary serving cell; and deactivating, by the user equipment, a secondary serving cell, or activating a secondary serving cell, or releasing a secondary serving cell, or adding a secondary serving cell according to the response message.

Abstract: A method for adjusting power of a terminal includes monitoring, by the terminal, usage of an uplink carrier, where the carrier usage includes at least one of a quantity of carriers, duration of continuous use of one or more carriers, and a temperature of the terminal. The method further includes adding, by the terminal, a power back-off value during calculation of power headroom when the terminal detects that the carrier usage satisfies a preset condition, to reduce a value of power headroom of the one or more carriers. The method further includes reporting, by the terminal, the value of the power headroom to a network device.

Abstract: A high-speed data transmission degradation method, a device, and a system, to implement, in high-speed data transmission and depending on a terminal requirement, resource degradation in which interaction load is low and a terminal remains connected to a network, so as to ensure a data transmission rate of the terminal and improve terminal user experience. The method includes receiving, by a network-side device, a degradation request sent by a terminal that is in a high-speed data transmission mode; obtaining, by the network-side device, a target to-be-degraded resource of the terminal based on the received degradation request; and degrading, by the network-side device, the target to-be-degraded resource.

Abstract: A network access control method includes obtaining network information of an electronic device, determining, using the network information, whether the electronic device needs to use a first access point name (APN) network channel, and generating a network channel switching instruction in response to determining that the electronic device needs to use the first APN network channel. The network channel switching instruction instructs to switch the electronic device from a second APN network channel to the first APN network channel. The second APN network channel has access to more network resource addresses than the first APN network channel.