Abstract: Embodiments of the present application provide a call processing method and an apparatus thereof. The method includes: receiving information associated with calling at least one slave device, where the information associated with calling at least one slave device is used to request to wake up the at least one slave device from a sleep state to an active state; and sending an excitation signal to the at least one slave device, where the excitation signal is used to request to wake up the at least one slave device. In the method and apparatus in the embodiments of the present application, a slave device is rendered in a sleep state, and the slave device is activated when the slave device is being called or is going to be called, which can save power consumption caused by unnecessary listening by the slave device.

Abstract: Embodiments of this application disclose a power control method and a power control apparatus. The method comprises: receiving, during transmission of an uplink signal of a first time domain transmission length on a channel, at least one piece of first information transmitted on the channel, wherein the first time domain transmission length does not exceed a time domain transmission length of a protocol data unit PDU; and adjusting uplink transmit power during the first time domain transmission length at least according to the at least one piece of first information. By means of the method and the apparatus of the embodiments of this application, in a process of sending an uplink signal, a transmit end device can dynamically adjust transmit power of the uplink signal according to at least one piece of received first information transmitted on a same channel, thereby increasing adjustment granularity of the transmit power, and therefore power control is more precise.

Abstract: The embodiments of this application disclose an access method, an auxiliary access method, and apparatuses thereof. The access method comprises: receiving an access-associated signal from at least one path, wherein the access-associated signal is separately sent by an access point device by using at least two non-coherent antennas; and sending an access request in at least one Direction of Arrival of access-associated signals corresponding to some antennas of the at least two non-coherent antennas. According to the method and the apparatus in the embodiments of this application, an access request is sent in at least one Direction of Arrival of access-associated signals corresponding to some antennas of an access point device, which can reduce a probability of a collision between access terminals and improve an access success rate of an access terminal.

Abstract: Embodiments of the present application disclose a data retransmission method, a data recovery method, and apparatuses thereof. The data retransmission method comprises: determining at least one data symbol that is to be retransmitted to a receiver; and sending the retransmitted at least one data symbol to the receiver. For the methods and the apparatuses in the embodiments of the present application, retransmission is performed for an incorrect symbol, so that a possible bandwidth waste can be reduced.

Abstract: Embodiments of the present application provide transmission control methods and transmission control apparatus. A method disclosed herein comprises: determining transmission capability of a first device; and determining transmission configuration between the first device and a second device at least according to the transmission capability of the first device, the transmission configuration comprising information associated with at least two multiple-input-multiple-output (MIMO) channels available for data transmission between the first device and the second device. The method and apparatus of the embodiments of the present application support that at least two separate MIMO channels coexist between an access terminal (AT) device and an access point (AP) device as well as between two AT devices, which have flexible configuration while ensuring a higher data transmission rate, and computational complexity is not high for the devices, which can reduce power consumption of the devices.

Abstract: An eddy current sensor for a rotary shaft and a rotary shaft apparatus. The eddy current sensor includes: a housing; one or more position detecting probes provided on the housing; and a rotating speed detecting probe provided on the housing. The eddy current sensor integrates the position detecting probe and the rotary speed detecting probe, such that while the eddy current sensor is detecting position displacement of the rotary shaft, the eddy current sensor may also simultaneously detect the rotating speed of the rotary shaft, which facilitates detecting and monitoring the rotary shaft more comprehensively. The detected position data and rotating speed data of the rotary shaft correspond to each other at any time, such that the working state of the rotary shaft may be analyzed more intensively.

Abstract: Device to device (D2D) communication is provided. A method comprises: acquiring information associated with a pilot channel resource used to send at least one directional pilot signal associated with directional D2D communication; and transmitting a data signal associated with the directional D2D communication at least according to a received state of the pilot signal on the pilot channel resource. Accordingly, a data signal associated with directional D2D communication can be transmitted more effectively according to a directional pilot signal related to the directional D2D communication.

Abstract: Wireless communications methods and devices that relate to the field of communications. A method comprises: receiving a first wireless signal of a target device in a direction of arrival; acquiring a historical path quality of a transmission path corresponding to the direction of arrival; and in response to that the historical path quality is lower than a first threshold, prohibiting sending a second wireless signal in a reverse direction of the direction of arrival. The method gradually disables transmission paths having lower historical path qualities, and reserves transmission paths having higher historical path qualities, thereby being conducive to reducing radiation to personnel and/or reducing power consumption.

Abstract: Embodiments of the present application provide an image capturing-based positioning method and an image capturing-based positioning apparatus. The method comprises: determining that an eye of a user is gazing at an auxiliary positioning object; photographing the eye of the user and acquiring a distance of the user relative to the auxiliary positioning object; capturing at least one image comprising the auxiliary positioning object; obtaining, according to the at least one image, direction information of the user relative to the auxiliary positioning object and position information of the auxiliary positioning object; and obtaining position information of the user according to the position information of the auxiliary positioning object, the distance of the user relative to the auxiliary positioning object, and the direction information.

Abstract: Embodiments of the present invention disclose a resource allocation method, a transmission method, and apparatuses. The resource allocation method comprises: sending a scheduling instruction, wherein the scheduling instruction comprises: information that is associated with at least two carriers in an unlicensed spectrum allocated to transmission of a user equipment; determining at least one available carrier in the at least two carriers; and sending a physical indication signal on the at least one available carrier, wherein the physical indication signal is used to occupy the at least one available carrier.

Abstract: Embodiments of the present application disclose a precoding method, an information sending method, and apparatuses thereof. The precoding method comprises: acquiring first information associated with a receiving matrix of at least one user equipment associated with a base station; and determining a first transmitting precoding matrix of the base station according to at least the receiving matrix of the at least one user equipment. According to the methods and apparatuses in the embodiments of the present application, a transmitting precoding matrix of a base station is designed according to a receiving matrix of a user equipment, which can reduce inter-cell interference.

Abstract: Embodiments of the present application disclose a switching method and a switching apparatus. The method comprises: determining voice service quality of at least one position in a movement path of at least one UE; determining a position of the at least one UE; and triggering, in response to that the voice service quality of the at least one position meets a preset condition, and the at least one UE fails to arrive at the at least one position corresponding to the voice service quality that meets the preset condition, the at least one UE to switch from a first voice communication mode to a second voice communication mode.

Abstract: Device to device (D2D) communication control is provided. A method comprises: determining a pilot channel resource used to send at least one directional pilot signal associated with directional D2D communication; and determining a transmit control strategy associated with the directional D2D communication at least according to a received state of the pilot signal on the determined pilot channel resource. A more appropriate D2D communication transmit control strategy can be determined according to a directional pilot signal related to directional D2D communication, thereby providing a basis for more effectively conducting the D2D communication.

Abstract: Embodiments of the present application provide a positioning method and a positioning system. The method comprises: obtaining a reference direction corresponding to a user; determining that an eye of the user is gazing at an auxiliary positioning object; acquiring position information of the auxiliary positioning object; acquiring a distance of the user relative to the auxiliary positioning object; acquiring an angle of a sight line direction of the user relative to the reference direction; and obtaining position information of the user according to the position information of the auxiliary positioning object, the distance of the user relative to the auxiliary positioning object, the reference direction, and the angle of the sight line direction of the user relative to the reference direction.

Abstract: Embodiments of the present application disclose a method and an apparatus for determining channel quality. The method comprises: at the same time when a data symbol is sent to a receiver by using a channel, receiving at least one reference signal by using the channel; and determining, at least according to the at least one reference signal, quality of the channel at a corresponding moment when the data symbol is sent to the receiver.

Abstract: The present invention provides an eddy current sensor, comprising: a housing; a plurality of probes which are all disposed inside the housing, probing ends of the probes being all disposed at inner side of an exterior surface of the housing to avoid the probing ends of the probes from protruding out of the exterior surface of the housing. Because the probing ends of the plurality of probes are all located at the inner side of the exterior surface of the housing, the housing will protect the probes when the eddy current sensor is hit by an external force, thereby avoiding damage of the probes due to the impact, which reduces fault rate of the probes, enhances use reliability of the eddy current sensor, and prolongs service life of the eddy current sensor.

Abstract: A device to device (D2D) communication control method, a D2D communication method, and apparatuses thereof are provided. A method comprises: in response to that at least one party in both parties of communication has a directional transmission capability, determining to establish a D2D communication link using directional transmission; and determining a power control strategy associated with the directional transmission of the D2D communication link. Possible directional D2D transmission can be considered according to directional transmission capability of at least one party in both parties of communication, and a power control strategy specific to the directional D2D transmission can be made, thereby having higher flexibility, and being conducive to suppressing interference more effectively.

Abstract: The present application discloses an auxiliary observation method and an auxiliary observation apparatus, and relates to the field of multimedia information processing technologies. The method comprises the following steps: determining at least one comparison object according to a feature of an observation target; and determining a part of or all differences between the observation target and the at least one comparison object. The method and the apparatus in embodiments of the present application can prevent a case in which important information is overlooked or redundant unimportant information is highlighted, and also improve efficiency of observing information, in particular important information.

Abstract: A pilot allocation method for a multi-antenna system and a pilot allocation apparatus are provided. The method comprises: determining the number of pilots to be allocated and the number of training cycles at least according to the number of users in each cell, and determining a pilot allocation scheme of the each cell according to the number of pilots to be allocated and the number of training cycles. The determining a pilot allocation scheme of the each cell can comprise determining pilots allocated for users in the l-th cell used during each training cycle, and during each training cycle, allocating pilots of at least the k-th user of the l-th cell to different users in other cells of the system. By allocating pilots allocated to a desired user to different users during each training cycle, pilot contamination can be randomized during several different continuous training cycles, thereby providing a basis for the later accurate channel estimation.

Abstract: Interference measurement is provided. A method comprises: determining pilot channel resource configured to send at least one directional pilot signal associated with directional device-to-device communications, and determining, at least according to a received state of a pilot signal on the determined pilot channel resource, interference caused by a signal associated with directional device-to-device communications in the pilot channel resource. Accordingly, interference related to directional D2D communications can be measured more accurately according to a directional pilot signal related to the directional D2D communications, thereby providing a basis for more effectively implementing the directional D2D communications.