Abstract: A method for managing a media file includes sending, by a terminal to a managed device by using a Bluetooth path between the terminal and the managed device, a first request used to obtain at least one piece of media file information stored in the managed device. The method further includes receiving, by the terminal, a first response that is sent by the managed device and that includes the at least one piece of media file information. The method further includes displaying the at least one piece of media file information on the terminal based on the first response. The method further includes after obtaining a first operation request for a target media file, sending, by the terminal to the managed device, a first operation instruction used to instruct the managed device to process the target media file according to a preset operation type.

Abstract: An integrated circuit is described. The integrated circuit includes a first layer, a first clock line for carrying a first clock signal, and a second clock line for carrying a second clock signal. The second clock line runs alongside the first clock line for a distance. The integrated circuit includes a shield structure for shielding the clock line from crosstalk and/or other interference. The shield structure includes a shield wall extending from the first layer. The shield wall runs between the first and second clock lines for at least a portion of the distance. The shield structure may also include a shield cage extending from the first layer and surrounding the first and second clock lines for at least a portion of the distance. The shield cage has a plurality of openings. The shield cage and/or shield wall may be connected to the ground of an AC power supply.

Abstract: A CSI measurement method and apparatus are described. The CSI measuring includes obtaining CSI configuration information that includes first frequency-domain indication information and that is sent by a second network device, where the CSI configuration information instructs the first network device to perform a CSI measurement, and the first frequency-domain indication information indicates a frequency-domain location in which the first network device performs CSI measurement. The CSI measuring includes measuring, based on the CSI configuration information, a reference signal in the frequency-domain location indicated by the first frequency-domain indication information. The CSI measurement is sent to a network device, so that a reference signal in a specific frequency-domain location in channel bandwidth is measured.

Abstract: Methods and devices for assigning sounding reference signals (SRS) resources to UEs in a wireless communication network are provided. Configuration information is sent to a UE, the configuration information pertaining to a first sequence identifier (ID) to be used by the UE to generate a plurality of SRS sequences to be sent by the UE as at least part of a first SRS. Each SRS sequence of the plurality of SRS sequences is a function of a respective SRS sequence root that is a function of the first sequence ID. The first sequence ID may be a UE-specific sequence ID that is a function of a UE-specific ID associated with the UE, such as a Cell-Radio Network Temporary Identifier (C-RNTI).

Abstract: This application discloses a network handover method and a network device, to resolve a problem that a terminal device cannot perform an IMS voice service. The method includes: receiving, by a first access network device, first session management information from a session management network element, where the first session management information is for requesting to set up a user plane tunnel for a voice service of a terminal device; and sending, by the first access network device, a handover request to a first mobility management network element based on the first session management information and a first condition, where the handover request is for handing over the terminal device from a first network to a second network, and the first condition includes that the voice service cannot be performed in the first network. This application is applicable to the field of communication technologies.

Abstract: A video service transmission method and apparatus in the field of communications technologies are provided, where data in a video data frame can be split into at least two substreams based on a mapping relationship between data importance and a substream. The data of the at least two substreams may then be mapped, based on port numbers corresponding to the at least two substreams, to bearers corresponding to the at least two substreams, for transmission. Because a network can use different processing methods for data on different bearers, reliable transmission of video data frames of high importance can be ensured with priority by using the video service transmission method and apparatus, so as to improve service experience of video users in a scenario of constrained transmission resources.

Abstract: A radio communication apparatus includes: a first duplexer, configured to receive a first carrier aggregation signal from a third switch, filter the first carrier aggregation signal to divide the first carrier aggregation signal into a first carrier signal and a second carrier signal, input the first carrier signal to a first switch, and input the second carrier signal to a second switch. The first carrier signal and the second carrier signal are downlink signals. The apparatus further includes: a radio frequency unit, configured to receive the first carrier signal from the first switch, receive the second carrier signal from the second switch, and demodulate the first carrier signal and the second carrier signal.

Abstract: A method and an apparatus for binding a bank card in a payment application are disclosed. The method includes the following steps: obtaining a picture of a to-be-bound bank card; identifying the picture of the bank card to obtain bank card information, where the bank card information includes a card number of the bank card and information about a bank card pattern; searching, based on the information about the bank card pattern, for a bank card background picture that matches the information about the bank card pattern; and superimposing the card number of the bank card on the bank card background picture to obtain a virtual bank card consistent with the bank card. A technical solution provided in this application is advantageous to desired user experience.

Abstract: A terminal device sends a directional signal in a direction in which a to-be-controlled device is located, the to-be-controlled device establishes a transmission channel between the to-be-controlled device and the terminal device according to the directional signal, the to-be-controlled device returns a response signal to the terminal device after receiving the directional signal, and the terminal device controls, according to the response signal, an application program corresponding to the to-be-controlled device to start. In this way, a process in which the user uses the terminal device to control the to-be-controlled device, and searches for an application program of the to-be-controlled device is simple, and many application programs do not need to be searched one by one for the required application program.

Abstract: A data packet transmission method includes: obtaining, by a sending device, a data packet; determining, by the sending device, quality of service of the data packet; adding, by the sending device, an identifier and a sequence number to the data packet based on the quality of service of the data packet, where if the quality of service of the data packet belongs to first quality of service, the sending device adds a first identifier and a first sequence number to the data packet; or if the quality of service of the data packet belongs to second quality of service, the sending device adds a second identifier and a second sequence number to the data packet; and sending, by the sending device, the data packet to which the identifier and the sequence number have been added.

Abstract: The communication method includes: sending, by a CMTS (cable modem terminals stem), a reference signal within a first time period by using a valid subcarrier in a first spectrum, where the first time period is a time period within which none of CMs (cable modems) connected to the CMTS sends a signal in the first spectrum; performing, by the CMTS based on an interfering signal received by the CMTS within the first time period, channel interference estimation on a channel that is used during signal reception of the CMTS and that occupies the first spectrum, where the interfering signal is a signal obtained after the reference signal passes through the channel; and canceling, by the CMTS based on a result of the channel interference estimation, interference from a first signal received by the CMTS to a second signal received by the CMTS.

Abstract: The present invention discloses an inter-base station beam configuration and management method, a base station, user equipment, and a system. The method includes: receiving, by user equipment, a beam signal sent by a base station; determining, by the user equipment, a receive beam based on the sent beam signal; receiving, by the base station, a beam signal sent by a terminal device; determining, by the base station, a receive beam based on the sent beam signal; performing dynamic selection and fast beam switching between base stations in combination with a coordinated multi-point technology; and performing fast beam alignment between the base station end with the user equipment end. This application can effectively implement fast beam switching and alignment between base stations and support dynamic base station selection, thereby improving link reliability.

Abstract: This disclosure provides a method and an apparatus for implementing a composed VPN. The method includes: obtaining a business type and a customer site that are input by a user; determining an access point corresponding to the customer site; determining one or more segment VPNs according to the business type and the access point corresponding to the customer site; obtaining a composed VPN according to the one or more segment VPNs; and outputting an access point list and a segment VPN list of the composed VPN to the user. In the solutions provided in this application, a user can learn a correlation between businesses in different domains related to a composed VPN, and can readily estimate a range affected by a business change of the composed VPN.

Abstract: Systems and methods are provided for transmitting and receiving pre-emption indications. The pre-emption indication is transmitted every K symbols or slots, on a group-common physical downlink control channel. The pre-emption indication is in respect of a group of K symbols or slots preceding a symbol or slot containing the group-common pre-emption indication. The group-common pre-emption indication indicates, for the group of K symbols or slots, which resources are pre-empted. The base station schedules resources for first downlink traffic, and transmits the scheduled first downlink traffic subject to pre-emption, and transmits second downlink traffic by pre-empting resources for the first downlink traffic. On the UE side, the UE receives the pre-emption indication. The UE receives its scheduled traffic taking into account the pre-emption indication.

Abstract: Embodiments of this application disclose provides a low density parity check (LDPC) channel encoding method for use in a wireless communications system. A communication device encodes an input bit sequence by using a LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. Embodiments of the application provide eight particular designs of the base matrix. The encoding method provided in the embodiments of the application can be used in various communications systems including the fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.

Abstract: Embodiments of the present invention disclose a touch response method for a touchscreen and a terminal. The touch response method for a touchscreen includes: detecting touch pressure values of at least two touch points applied on a touchscreen; comparing the touch pressure values of the at least two touch points to obtain at least one valid touch point, where a touch pressure value of the valid touch point is greater than a touch pressure value of an invalid touch point of the at least two touch points; and determining a touch operation corresponding to the valid touch point, and performing the touch operation. According to the embodiments of the present invention, a failure in responding to a touch operation corresponding to a touch point on a touchscreen can be avoided, and touch operation processing efficiency can be improved.

Abstract: Embodiments of the present disclosure provide a packet processing method and a network device, so as to effectively resolve a problem that a quantity of concurrent packet processing policies is limited in a network device due to scarce hardware resources of a packet forwarding chip. A method part in the embodiments of the present disclosure includes: obtaining, by a first network device, identification information; processing, by the first network device, a packet when receiving the packet, where a processed packet includes the identification information, and packets corresponding to different preset policy information include different identification information; and sending, by the first network device, the processed packet to a second network device, so that the second network device matches a corresponding policy for the processed packet based on the identification information.

Abstract: A service data transmission method includes: determining, by an access network device, first information of service data to be sent by a terminal, where the first information includes at least one of a service type and a priority; then receiving, by the access network device, the service data sent by the terminal by using a non-access stratum signaling message; and sending, by the access network device, the service data and the first information to a gateway, so that the gateway charges the service data based on the first information after receiving the service data and the first information.

Abstract: A terminal with a line-of-sight tracking function is disclosed. The terminal with a line-of-sight tracking function includes a body, a camera, and at least two light emitting diodes. The camera and the at least two light emitting diodes are mounted on the body, so that the terminal can emit a ray by using the at least two light emitting diodes, to ensure that the emitted ray can be shined on an eye of the user when the user is at different angles. After the ray is reflected by the eye of the user, the terminal can collect the reflected ray by using the camera, obtain an eye image of the user, and track a line of sight of the user based on the eye image, thereby increasing a success rate of line-of-sight tracking.

Abstract: A system and method are provided for processing symbols for transmission. The method involves producing a set of 2K outputs that include K real components and K imaginary components from K complex symbols, performing a Fourier transform operation on the 2K outputs to produce 2K Fourier transform outputs, pulse shaping the 2K Fourier transform outputs by multiplying each of J of the 2K Fourier transform outputs with a respective one of J non-zero coefficients, where J is odd, and K?J?2K?1, performing an inverse Fourier transform operation on the J pulse shaped outputs to produce an inverse Fourier transform output; and outputting the inverse Fourier transform output. The approach has the advantage of avoiding self-interference, with the result that better BLER performance may be possible. The approach is applicable to any modulation order without bandwidth expansion. Flexibility is provided through a trade-off between PAPR vs. spectrum efficiency.