Abstract:
A first device receives a first message from a second device, where the first message includes a first time stamp and a second time stamp, the first time stamp is of a second WI-FI module in the second device at a first moment, and the second time stamp is a system time stamp of a second main chip in the second device at a second moment. The first device adjusts a system time of a first main chip in the first device based on the first time stamp, the second time stamp, a third time stamp, and a fourth time stamp, where the third time stamp is a time stamp of a first WI-FI module in the first device at a third moment, and the fourth time stamp is a system time stamp of the first main chip at a fourth moment.
Abstract:
The present disclosure describes methods, terminals, and base stations for terminal positioning method. One example method applied to a baseband unit (BBU) in an indoor distributed NodeB system includes: receiving an uplink positioning signal forwarded by multiple remote radio units RRUs, where the uplink positioning signal is sent by a to-be-positioned terminal to the multiple RRUs; selecting, from the multiple RRUs, at least two RRUs as target RRUs according to the uplink positioning signal and a preset rule; and respectively obtaining signal angles of arrival corresponding to the target RRUs, and determining a location of the to-be-positioned terminal according to the signal angles of arrival, locations of the target RRUs, and a preset algorithm.
Abstract:
A positioning method includes sending, by a to-be-positioned node, a first request to a first node, where the first request includes device information of N second nodes, and the N is a positive integer greater than or equal to one, receiving measurement information from the first node, where the measurement information includes location information of the N second nodes and distances between the first node and the N second nodes, and obtaining location information of the to-be-positioned node according to the measurement information and measurement time information obtained through monitoring a process in which the first node performs distance measurement.
Abstract:
A location relationship obtaining method includes recording, as a reference location point corresponding to a searched terminal, a location point for obtaining a wireless signal having greatest strength, obtaining at least two reference location points, setting either of the at least two reference location points as a benchmark location point, and obtaining a reference location relationship between the other reference location points and the benchmark location point, where the reference location relationship indicating a location relationship between a searched terminal corresponding to the other reference location points and a searched terminal corresponding to the benchmark location point.
Abstract:
A method for allocating an identification using an access network grouping scheme, and a method and apparatus for paging group are described. The ID allocating method comprises: receiving a group ID of a group of group-paged objects allocated by a core network device for a terminal device, wherein the group of group-paged objects comprises one or more subgroups; allocating a device ID or a user ID to the terminal device, wherein the device ID or the user ID comprises information of a subgroup ID of a subgroup to which the terminal device belongs; and sending the allocated device ID or user ID to the terminal device. The number of terminals in the subgroup is appropriate, and the resources are allocated more flexibly and reasonably.
Abstract:
Embodiments of the present invention provide an air-ground communication control method. The method is applied to a hierarchical network that includes a ground network and at least one aerial network, and the method includes: receiving, by a ground platform, location information of a high-altitude platform sent by the high-altitude platform, where the ground platform is located in the ground network, the high-altitude platform is located in the aerial network, and a beam of the high-altitude platform covers the ground platform; determining a beam direction according to location information of the ground platform and the location information of the high-altitude platform; and sending beam width information to the high-altitude platform in the beam direction, where the beam width information is used to adjust an interval of sending the location information of the high-altitude platform.
Abstract:
A gateway data transmission method, device and system are provided, which relate to the field of communication, and involve solving data congestion in a dual mode gateway caused by occupation of resources of the dual mode gateway in existing gateway data transmission technology. The method provided in the present disclosure includes: when service data from a cellular network side needs to be transmitted to a capillary vessel network device via a dual mode gateway, it is determined if the dual mode gateway is congested; if it is congested, a delay transmission message is transmitted to a data transmission main body at the cellular network side, the delay transmission message includes a reaccess time evaluated for service data by the dual mode gateway, the data transmission main body delays the transmission of the service data. The present disclosure can be applied in communication between all sorts of different networks.
Abstract:
This application discloses a beam control method and an apparatus. The method includes: obtaining a target propagation track of a beam and a reception point location of the beam, where the target propagation track passes through a transmission point location and the reception point location of the beam; determining target phase information of the beam based on the target propagation track and the reception point location, so that a depth of focus location of the beam overlaps the reception point location; and controlling to transmit the beam based on the target phase information. In embodiments of this application, when the beam is controlled to be propagated to the reception point location along the target propagation track, a focus of the beam also reaches the reception point location along the target propagation track, so that a depth of focus of the beam overlaps the reception point location.
Abstract:
A communication method includes obtaining, by a first device, first target information, determining, by the first device based on the first target information, a data transmit array element from light emitting diodes (LEDs) of the first device, where each data transmit array element of the first device includes at least one LED, and sending, by the first device, to-be-sent data to a data receive array element of a second device using the data transmit array element, where each data receive array element of the second device includes at least one LED of the second device.
Abstract:
A positioning method includes sending, by a to-be-positioned node, a first request to a first node, where the first request includes device information of N second nodes, and the N is a positive integer greater than or equal to one, receiving measurement information from the first node, where the measurement information includes location information of the N second nodes and distances between the first node and the N second nodes, and obtaining location information of the to-be-positioned node according to the measurement information and measurement time information obtained through monitoring a process in which the first node performs distance measurement.