Abstract: This application provides a communications method and device. The communications method includes: determining a first frequency band and a second frequency band in an operating frequency band; and transmitting a first-type frame in the first frequency band, and transmitting a second-type frame in the second frequency band, where the first-type frame is used to carry a first-type service, the second-type frame is used to carry a second-type service, and the second-type frame and the first-type frame have different frame structures. Therefore, in embodiments of the present application, different frame structures are used in different frequency bands in the operating frequency band, and different services are carried by using the different frame structures, thereby meeting transmission requirements of different types of services.

Abstract: A method and apparatus for timing advance (TA) synchronization for uplink (UL) data transmissions are provided. A base station transmits a TA instruction to a UE. The TA instruction indicates one of at least two TA options. The first TA option indicates direct initial grant-free (GF) uplink (UL) data transmissions. The second TA option indicates indirect initial GF UL data transmissions with the UE initiating TA reference signaling for updating a TA parameter of the UE. The UE performs an initial GF UL data transmission to the base station based on the TA instruction.

Abstract: Embodiments of the present invention provide a coding method and apparatus, a base station, and user equipment. The method includes: determining a quantity of polar codes used to code a to-be-transmitted data block and a block length of each polar code of the polar codes used to code the to-be-transmitted data block; and determining, according to a quantity of bits of the to-be-transmitted data block, the block length of each polar code of the polar codes used to code the to-be-transmitted data block, and an input composite channel characteristic corresponding to each input bit position in the polar code of the polar codes used to code the to-be-transmitted data block, allocation information of valid input bits of the polar code of the polar codes used to code the to-be-transmitted data block. The quantity of polar codes used to code the to-be-transmitted data block is not less than two.

Abstract: Embodiments of the present disclosure disclose a data transmission method and a terminal. The method includes: when a terminal is in an energy saving state, detecting, by the terminal, whether a first logical channel corresponding to a first tunnel includes first to-be-transmitted data, and detecting whether a second logical channel corresponding to a second tunnel includes second to-be-transmitted data; if it is detected that the first logical channel includes the first to-be-transmitted data, and a sum of the first to-be-transmitted data and the second to-be-transmitted data on the second logical channel is less than a preset threshold, selecting the second tunnel to transmit the first to-be-transmitted data and the second to-be-transmitted data; and transmitting, by the terminal, data by using the second tunnel.

Abstract: A downlink transmission method and an apparatus, the including sending, by a network side device, a signaling indication to a terminal device (UE), wherein the signaling indication carries allocation information, and wherein the allocation information indicates a plurality of downlink transmission resources used to transmit data blocks.

Abstract: The present disclosure discloses a terminal, a base station, a network controller, a system, and a transmission method. The terminal includes: a receiving module, configured to receive configuration information of at least one air interface-specific path sent by a base station, where the air interface-specific path is used to transmit application data corresponding to at least one application; and a sending module, configured to: if the to-be-sent application data is discontinuously transmitted and has a length less than a preset threshold, use the at least one air interface-specific path to send the application data to the base station. According to embodiments of the present disclosure, when a terminal transmits data or signaling that is discontinuous and has a relatively small length, consumption of network signaling resources is reduced, so that a normal network service properly runs.

Abstract: Embodiments of the present invention relate to the communications field, and provide a method and device for sending system information. The method comprises: a terminal receives a broadcast message from a network device, the broadcast message comprises indication information for an system information (SI) and wherein that the indication information is for indicating that whether the SI is being broadcasted or not, in case that the indication information indicating that the SI is not being broadcasted, the terminal sends a system information request to the network device for acquiring the SI.

Abstract: Embodiments of the present disclosure relate to a communication method, user equipment, and a base station.

Abstract: A method includes generating a preamble for a protocol version of a wireless local area network, where the preamble includes a legacy signal (L-SIG) field and a high efficiency signal (HE-SIG) field that are arranged in order, the HE-SIG field includes a first orthogonal frequency division multiplexing OFDM symbol and a second OFDM symbol that are arranged in order, and an input information bit of the first OFDM symbol is the same as that of the second OFDM symbol, and sending the preamble to a receive end device, so that the receive end device restores the preamble, and when determining that input information bits obtained after restoring the first OFDM symbol and the second OFDM symbol are the same, determines that the preamble is the preamble of the protocol version.

Abstract: Embodiments provide a data sending method and device. The data sending method includes: determining, by a transmitting device, a busy/idle state of a wireless communications channel and a communication status of a receiving device before sending data to the receiving device, where the transmitting device is a wireless access node or the transmitting device is a station, and the receiving device is a wireless access node or the receiving device is a station. The method also includes sending, by the transmitting device, the data to the receiving device if the wireless communications channel is in a busy state and the receiving device is in an idle communication state.

Abstract: Embodiments provide a channel contention method and apparatus. The channel contention apparatus belongs to a basic service set (BSS). The BSS includes an access point (AP) and at least one first station (STA). Both the AP and the at least one first STA participate in channel contention. The apparatus is the AP or any first STA. The apparatus includes a sensing module configured to sense a channel. The apparatus also includes a contention module configured to contend for the channel. The AP centrally performs control and scheduling so that all of at least one network device in the BSS can transmit data using the channel.

Abstract: A device configuration method and apparatus are provided, and relate to the field of communications technologies. The method is applied to a management device that manages n transmission devices, n?2, and the method includes: determining a transmission device accessed by user equipment UE; grouping m transmission devices including the transmission device accessed by the UE into a tracking set, where 1?m<n; and sending tracking configuration information to each transmission device in the tracking set, where the tracking configuration information is sent to the UE by the transmission device that is in the tracking set and that is currently accessed by the UE, to instruct the UE to send a tracking signal, and the tracking signal is used to determine a location of the UE.

Abstract: This disclosure includes a data transmission method, a network device, a terminal device, and a base station. In the data transmission method, a target network device receives data sent by a target base station. The data is sent by a terminal device to the target base station, and the data includes identification information of the terminal device. When the target network device acknowledges, by using the identification information, that the terminal device has not been registered with the target network device, the target network device obtains user information of the terminal device. After the target network device obtains the user information of the terminal device, the target network device sends the data to a gateway. By using the data transmission method, the network device, the terminal device, and the base station disclosed in this patent application, the terminal device can still properly perform data transmission during movement.

Abstract: Embodiments of the present disclosure disclose a sequence signal sending method, to receive control information from a network-side device, to clarify a channel resource used by a terminal to send a sequence signal to the network-side device. The method in the embodiments of the present disclosure includes: receiving, by a terminal, control information sent by a network-side device, where the control information includes a sequence identifier and a channel resource indication, and the channel resource indication is used to indicate a channel resource available for the terminal; determining, by the terminal, a corresponding sequence signal based on the sequence identifier; and sending, by the terminal, the sequence signal by using the channel resource. Therefore, it is ensured that the terminal obtains stable and reliable communication quality and provides satisfactory user experience, and a performance requirement of a future network is fully met.

Abstract: A method includes generating a preamble for a protocol version of a wireless local area network, where the preamble includes a legacy signal L-SIG field and a high efficiency signal HE-SIG field that are arranged in order, the HE-SIG field includes a first orthogonal frequency division multiplexing OFDM symbol and a second OFDM symbol that are arranged in order, and an input information bit of the first OFDM symbol is the same as that of the second OFDM symbol, and sending the preamble to a receive end device, so that the receive end device restores the preamble, and when determining that input information bits obtained after restoring the first OFDM symbol and the second OFDM symbol are the same, determines that the preamble is the preamble of the protocol version.

Abstract: A method for operating a user equipment (UE) adapted to transmit beacons includes adjusting an initial beacon interval between successively transmitted beacons in accordance with a value of at least one parameter and a beacon configuration received from a network entity, thereby producing an adjusted beacon interval, and transmitting a beacon selected in accordance with the adjusted beacon interval in a beacon transmission opportunity determined in accordance with the initial beacon interval.

Abstract: Embodiments of the present invention provide a signal transmission method and apparatus, which can implement fast initial time synchronization. The method includes: generating, by a transmit-end device, an initial short training sequence, where the initial short training sequence includes M sub-sequences b, and the sub-sequence b includes N transmission sampling points; determining a quantity of reception sampling points used by a receive-end device when the receive-end device performs autocorrelation processing; generating a symbol sequence according to the quantity of the reception sampling points, and generating a target short training sequence according to the symbol sequence and the initial short training sequence; and sending a target signal to the receive-end device, where a short training sequence field of the target signal carries a short training sequence symbol, and the short training sequence symbol is used to indicate the target short training sequence.

Abstract: This application discloses a super-cell handover method which is applied to an NCS and includes: receiving, by a first LE, measurement reports sent by a plurality of first TPs, where the measurement reports are determined by the plurality of first TPs based on a reference signal sent by target UE in a second super cell, the first LE is in a first super cell, the plurality of first TPs are in the first super cell, and the second super cell is adjacent to the first super cell; determining a first handover policy based on a preset condition and the measurement reports, where the first handover policy indicates whether the first LE allows to hand over the UE from the second super cell to the first super cell; and sending indication information of the first handover policy to a second LE, where the second LE is in the second super cell.

Abstract: A network out-of-synchronization state processing method and apparatus, and a network access method and apparatus are provided. The method includes: if a first network device does not receive, in a first time length after the first network device determines that a terminal is in a network out-of-synchronization state, a measurement message reported by a second network device in a signal coverage area of the first network device, instructing at least one second network device in the signal coverage area of the first network device to send paging signaling to the terminal; and setting a network status of the terminal to a detached state if the first network device determines that in a second time length, no second network device in the signal coverage area of the first network device receives a paging response sent by the terminal, and that the terminal is still in the network out-of-synchronization state.

Abstract: A method for operating a user equipment (UE) adapted to transmit beacons includes adjusting an initial beacon interval between successively transmitted beacons in accordance with a value of at least one parameter and a beacon configuration received from a network entity, thereby producing an adjusted beacon interval, and transmitting a beacon selected in accordance with the adjusted beacon interval in a beacon transmission opportunity determined in accordance with the initial beacon interval.