Abstract: A reverse power supply management method, apparatus and system are disclosed. The method includes: acquiring reverse power supply information of terminal devices of various links during a process that various terminal devices connected to a local end device stably perform reverse power supply on the local end device; determining reverse power supply management information of the various terminal devices according to the acquired reverse power supply information of the terminal devices of the various links; and transmitting respectively the reverse power supply management information of the various terminal devices to corresponding terminal devices to instruct the various terminal devices to adjust parameters for supplying reverse power to the local end device according to the received reverse power supply management information.

Abstract: A method for displaying an image on a terminal, includes: acquiring current posture information of the terminal; selecting, according to the current posture information, a target area in a preset image as a wallpaper image of the terminal; and displaying the wallpaper image on a screen of the terminal.

Abstract: The present disclosure discloses a networking method and apparatus for a home network with a universal wired medium networking technology. The method includes: receiving, by a G.hn network device, a key-press operation; broadcasting a notice of open registration of a current domain and receiving joining application information of applying for joining in the current domain from an extra-domain node in a first preset time window, by the G.hn network device; determining, by the G.hn network device, whether a signal intensity of the extra-domain node transmitting the joining application information is not less than a first preset threshold; and allowing, by the G.hn network device, the extra-domain node to join in the current domain if the signal intensity of the extra-domain node transmitting the joining application information is not less than the first preset threshold.

Abstract: Embodiments of the present invention disclose a data transmission method, a base station, and user equipment. The method in the embodiments of the present invention includes: receiving, by a base station, a first target sequence and uplink data that are sent by user equipment; determining, by the base station according to a first mapping relationship, a first target uplink sending parameter corresponding to the first target sequence, where the first mapping relationship is used to indicate a correspondence between an uplink sending parameter and a sequence; and demodulating and decoding, by the base station, the uplink data according to the first target uplink sending parameter.

Abstract: The disclosure provides a method and apparatus for adjusting wavelength for an Optical Line Terminal/Optical Network Unit (OLT/ONU). The method for adjusting wavelength for an OLT includes that: a source OLT sends an adjustment notification message to a target OLT, wherein the adjustment notification message is used for indicating that an ONU is to be adjusted into a Time-Wavelength Division Multiplexing Channel (TWDM CH) of the target OLT; and the source OLT receives an adjustment acknowledgement message provided by the target OLT, wherein the adjustment acknowledgement message is used for indicating that an adjustment process of the ONU has been completed. By means of the technical solution provided in the disclosure, an ONU of a source OLT can still work normally after being switched to a channel of a target OLT, thereby achieving the effect that the continuity of a service between the OLT and the ONU may be maintained.

Abstract: The present invention provides a method, a device, and a system for notifying a terminal type supported by a current cell, so that a UE can identify the terminal type supported by the current cell as soon as possible. The method includes: carrying preset indication information in a downlink signal, where the indication information is used to indicate the terminal type supported by the current cell, the preset indication information is agreed upon by a network side and a terminal in advance, and the indication information is a synchronization sequence or a first indicator bit used to indicate the supported terminal type; and sending the downlink signal to the terminal.

Abstract: The present invention provides a synchronization signal receiving method, including: receiving, by a receive end, a synchronization sequence sent by a transmit end, where the synchronization sequence includes a carrier frequency synchronization sequence, the carrier frequency synchronization sequence is zc(m)=e±j?m(m+1+2q)/L, m=0, 1, . . . , L?1, q?Z, L indicates a length of the carrier frequency synchronization sequence, q indicates a parameter of the carrier frequency synchronization sequence, Z indicates an integer set, e±j?m(m+1+2q)/L indicates the (±j?m(m+1+2q)/L)th power of e, and e is a natural constant; and performing, by the receive end, frequency offset estimation according to the received synchronization sequence, to obtain a frequency offset estimation value. With the technical solutions of embodiments of the present invention, accuracy of frequency offset estimation can be improved.

Abstract: The present disclosure discloses a method and device for channel switching, an Optical Network Unit (ONU) and a system for Time Wavelength Division Multiplexing (TWDM). The method for channel switching includes that: an ONU acquires channel information of a first TWDM channel, wherein the channel information of the first TWDM channel is used for indicating an uplink wavelength and/or downlink wavelength of the first TWDM channel; and the ONU tunes the uplink wavelength and/or downlink wavelength of the ONU into the uplink wavelength and/or downlink wavelength of the first TWDM channel according to the channel information of the first TWDM channel. By means of the present disclosure, the problem of high cost caused by specially building a standby channel for each TWDM channel in a system for TWDM Passive Optical Network (PON) to provide service protection is solved, and the cost of deploying the TWDM PON system is reduced.

Abstract: Provided are a method, device and system for isolating services, a Distributed Point Unit (DPU), a network adapter. The method includes that: a physical division manner, used for service isolation, of a twisted pair connected between a DPU on an access network side and a network adapter on a user side is determined, wherein the physical division manner includes at least one of: a time division manner, a frequency division manner and a line space division manner; and isolation processing is performed, according to the determined physical division manner, on a Plain Old Telephone Service (POTS) and a reverse power supply service executed on the DPU by user-side equipment, which are transmitted on the twisted pair. By such a method, the problem that the POTS and the reverse power supply service executed on the DPU by the user-side equipment, which are transmitted on the twisted pair, may not coexist in the related art is solved, and the effect of improving a user experience is further achieved.

Abstract: A method and a device for initial synchronization between D2D terminals are used to implement initial synchronization between the D2D terminals. A D2D master terminal measures a time-frequency resource set used to transmit a synchronization signal, and reports a measurement result to a network device; the D2D master terminal receives a synchronization resource that is allocated by the network device to the D2D master terminal according to the measurement result reported by the D2D master terminal; and the D2D master terminal sends the synchronization signal according to the synchronization resource allocated to the D2D master terminal.

Abstract: According to a communication method, a network-side device, and a communications system, a D2D connection is established between a master terminal located within network coverage and a slave terminal located beyond the network coverage, and a common communication connection is established between the master terminal and a network-side device, so that indirect communication can be implemented between the slave terminal located beyond the network coverage and the network-side device by using the master terminal.

Abstract: Provided are a method and device for supplying power to an access device. The method includes: detecting one or more user terminals connected with the access device; and determining one or more user terminals for supplying power to the access device according to a current service state of each of the one or more user terminals connected with the access device. By adopting the technical solution according to the embodiments of the disclosure, the problem in the related art, that as it is impossible to supply power to an access device according to the current service state of each of a plurality of user terminals connected with the access device, the equality of the user terminals in power supply is influenced, is solved, thus guaranteeing the equality of each user terminal connected with the access device in supplying power to the access device.

Abstract: Embodiments of the present invention includes: acquiring, by the DS-user terminal, a first timing offset, where the first timing offset is a difference between a start time point of receiving data by the DS-user terminal and a start time point of sending data by a DM-user terminal, the start time point of sending data by the DM-user terminal is a start time point of sending data after the DM-user terminal is synchronized with a network-side device, and the start time point of receiving data by the DM-user terminal is a start time point of receiving data after the DM-user terminal is synchronized with the network-side device; and adjusting, by the DS-user terminal according to the first timing offset, the start time point of receiving data by the DS-user terminal, so as to synchronize with the DM-user terminal and the network-side device.

Abstract: The present application provides a synchronization signal sending apparatus, sending method, receiving apparatus, and receiving method, and a system. The signal sending apparatus includes a determining unit and a sending unit. By using embodiments of the present invention, a synchronization signal is in a form of a differential signal, and has relatively strong frequency deviation resistance; and synchronization signals from different transmit ends satisfy a pre-determined relationship property. Therefore, when a receive end performs synchronization by using the synchronization signal, the receive end can eliminate an interfering signal by using the relationship property between the synchronization signals from the different transmit ends, so as to achieve an objective of distinguishing the different transmit ends or distinguishing signals from different cells.

Abstract: Provided are a method and device for accessing a secure network. The method includes that: a new node which intends to access a secure network triggers a function of configuring security parameters automatically; and the new node accesses the secure network according to the security parameters configured automatically. Through the disclosure, the problem in the related art that low security is brought when a user does not configure security parameters manually while poor user experience exists when the user configures the security parameters manually is solved, thereby achieving the effect that security parameters of an accessed secure network can be configured without manual configuration and user experience is improved effectively.

Abstract: Embodiments provide a resource allocation method, apparatus and system. The resource allocation method is used for a base station. The method includes acquiring a current resource indication of a cell, and generating a resource adjustment indication according to the current resource indication of the cell. The resource adjustment indication is used for instructing a mobility management entity MME to adjust a discovery resource allocated to the cell. The method also includes generating a resource adjustment request, where the resource adjustment request includes the resource adjustment indication. The method also includes sending the resource adjustment request, so that the MME adjusts the discovery resource of the cell according to the resource adjustment request.

Abstract: The signal transmitting method includes that a transmit end modulates a first frequency band that corresponds to a first signal to be transmitted by the single carrier system onto a second frequency band that corresponds to a second signal to be transmitted by the multicarrier system, to obtain a transmit signal including at least the first signal and/or the second signal. A spacing between a center frequency of a first subchannel and a center frequency of a second subchannel is an integer multiple of a spacing between two adjacent second subchannels. A signal bandwidth that corresponds to the first subchannel is less than or equal to a signal bandwidth that corresponds to the second subchannel. The method includes transmitting the transmit signal to a receive end for completing reception of the first signal and the second signal.

Abstract: Embodiments of the disclosure provide a communication method and an apparatus thereof. The method includes: generating a first signal; and sending the first signal to a receiver over a first channel, where the first channel is one of multiple channels in a first band for narrowband communication, and at least a part of the first band is located in a guard band of a radio access network RAN. In the embodiments of the disclosure, a spectrum resource of a guard band of a RAN is used to establish a spectrum resource applicable to narrowband communication, thus improving spectrum utilization.

Abstract: Disclosed are a method and device for transmitting optical signals. The method comprises: if there is Raman crosstalk between a first optical network system and a coexistence system, an upstream wavelength band of the first optical network system is set outside a range with an upstream wavelength band of the coexistence system being a center and with an impact intensity of the Raman crosstalk being a radius, and a downstream wavelength band of the first optical network system is set outside a range with the downstream wavelength band of the coexistence system being a center and with the impact intensity of the Raman crosstalk being a radius; and optical signals are transmitted by using the upstream wavelength band of the first optical network system and the downstream wavelength band of the first optical network system. The disclosure can avoid interference and improve signal quality.

Abstract: Disclosed is an interface switching method and device, which relates to the field of communications and solves the problem of affecting the data transmission efficiency due to an undue interface selection. The method includes: an abstraction layer selecting or switching an interface or interface group used for transmitting data based on a forwarding rule matching the data. The technical solution provided by the embodiments of the present document is applicable to a home network, achieving a mechanism in which the abstraction layer of a multi-media home network device intelligently selects or switches the interface for data transmission according to information such as the link quality.