Abstract:
One embodiment of the present invention provides a method by which an NAN terminal transmits an NAN service discovery frame on a discovery window (DW) in a wireless communication system, and the method for transmitting an NAN service discovery frame comprises the steps of: determining a time that a packet is available for transmitting; starting a countdown according to a backoff counter of an NAN discovery frame from the time at which a packet is available for transmission; and transmitting the NAN service discovery frame when the countdown is finished, wherein if the NAN terminal transmits a synch beacon frame on the DW, the NAN service discovery frame is capable of being transmitted only when the synch beacon frame is transmitted.
Abstract:
Provided according to the present invention is a method for a first neighbor awareness networking (NAN) device for performing service discovery in a wireless communication system. A method for performing service discovery comprises the steps of: exchanging a subscribe message with a second NAN device; and transmitting a first service discovery frame (SDF) on the basis of the exchanged subscribe message. The first service discover frame comprises a NAN connection capability attribute field, wherein the NAN connection capability attribute field comprises a first type interface information field, wherein the first type interface information field can show whether or not the first NAN device supports a first type interface.
Abstract:
The present invention relates to a wireless connection system, and in particular, relates to methods of retransmitting data in a machine-to-machine communication system, methods of managing the data, and devices for supporting machine-to-machine communication. As one aspect of the present invention, the method of retransmitting data in the wireless connection system supporting the machine-to-machine communication may include: allocating a data slot for retransmitting data from a first machine, from among two or more peer machines, by transmitting a transmit request message to a second machine; receiving a transmit response message transmitted form the second machine in response to the transmit request message; and retransmitting data to the second machine through the allocated data slot.
Abstract:
A wireless resource scheduling method and device for NAN are disclosed. The wireless resource scheduling method for NAN can comprise the steps of: determining switching from a WiFi mode to a NAN mode by a NAN terminal of an AP function; when the NAN terminal of the AP function determines the switching to the NAN mode, transmitting a CTS-to-self frame on the WiFi mode by the NAN terminal of the AP function; switching from the WiFi mode to the NAN mode by the NAN terminal of the AP function; and transmitting, by the NAN terminal of the AP function, a NAN frame to a NAN terminal on the NAN mode, wherein the WiFi mode supports communication on the basis of a BSS and the NAN mode can support communication on the basis of a NAN cluster.
Abstract:
A method and a device for positioning a NAN terminal in a wireless LAN system are provided. A first station receives, through a service discovery frame during a preset discovery window, allocation information of an available window for reporting a location estimate value of the first station, location information of a second station located within a distance of one hop from the first station, and location information of a third station located within a distance of at least one hop from the second station. The first station determines the location estimate value of the first station on the basis of the location information of the second station and the location information of the third station. The first station reports the location estimate value of the first station during a section indicated by the allocation information of the available window.
Abstract:
The present invention provides definition of an identifier which is required for recognizing information essential for device to device communication, a transmission method thereof, and devices that support the same. The method for supporting device to device (D2D) communication in a wireless access system that supports D2D communication as one embodiment of the present invention comprises the steps of allowing a first D2D device to receive, from a base station, a broadcast message which contains a common D2D identifier (C-D2D-RNTI) for all D2D devices that perform D2D communication; and allowing the first D2D device to receive the transmitted D2D-related information by using the C-D2D-RNTI. In this situation, the wireless access system can support both D2D communication and cellular communication for a normal terminal instead of the D2D device.
Abstract:
The invention relates to a method for determining the transmission of a sounding reference signal (SRS) by a terminal in a wireless communication system, which can include a step of determining whether a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) in a first timing advance (TA) group, or an SRS in a second TA group in the same subframe, is to be transmitted when the transmission timing of the PUCCH or the PUSCH in a cell of the first TA group and the transmission timing of the SRS in a cell of the second TA group overlap each other in the same subframe.
Abstract:
One embodiment of the present invention relates to a method for a neighbor awareness networking (NAN) terminal to transceive a signal in a wireless communication system, the method comprising the steps of: receiving a synchronization beacon frame from a first terminal; and comparing, with values stored in the terminal, one or more of an anchor master rank value and a hop counter value, the method further comprising a step of, if the anchor master rank value and the hop counter value which are included in the synchronization beacon frame are the same as an anchor master rank value and a hop counter value which are stored in the terminal, comparing the anchor master rank value with the master rank value of the terminal, wherein if the master rank value of the terminal and the anchor master value are the same and an AMBTT value stored in the terminal is greater than an AMBTT value included in the synchronization beacon frame, the terminal updates the AMBTT value stored in the terminal to the AMBTT value included in the synchronization beacon frame.
Abstract:
A method for measuring the indoor position of a UE by a network node according to an embodiment of the present invention may include: receiving, from the UE, measurement information including the intensity of a signal received from an access point (AP) and feedback information including information about a sensor configured to measure movement of the UE and sensor measurement information regarding movement of the UE, measured by the sensor; estimating the position of the UE based on the measurement information and received signal strength (RSS) from the AP, predetermined for each reference point; and calculating the indoor position of the UE by applying the information about the sensor and a sensor correction factor corresponding to the sensor measurement information to the estimated position of the UE.
Abstract:
A positioning method of estimating a location of a user equipment (UE) in a wireless network is disclosed. The positioning method includes performing positioning using a global positioning system (GPS)-based signal, checking whether the UE is located indoors based on received signal intensity of the GPS-based signal, and changing a positioning method using the GPS-based signal to a positioning method using a local area network (LAN)-based signal when it is determined that the UE is located indoors, and performing a positioning using the changed positioning method using the LAN-based signal.