WO2017105154A1 - Procédé et dispositif au moyen desquels un terminal de nan exécute une opération de télémétrie dans un système de communication sans fil - Google Patents

Procédé et dispositif au moyen desquels un terminal de nan exécute une opération de télémétrie dans un système de communication sans fil Download PDF

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Publication number
WO2017105154A1
WO2017105154A1 PCT/KR2016/014874 KR2016014874W WO2017105154A1 WO 2017105154 A1 WO2017105154 A1 WO 2017105154A1 KR 2016014874 W KR2016014874 W KR 2016014874W WO 2017105154 A1 WO2017105154 A1 WO 2017105154A1
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WIPO (PCT)
Prior art keywords
nan
ranging
information
nan terminal
message
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English (en)
Korean (ko)
Inventor
김동철
박기원
이병주
조영준
임태성
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LG Electronics Inc
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LG Electronics Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • H04W12/047—Key management, e.g. using generic bootstrapping architecture [GBA] without using a trusted network node as an anchor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks

Definitions

  • the present specification relates to a wireless communication system, and more particularly, to a method and apparatus for performing a ranging operation by a neighbor awareness networking (NAN) terminal in a wireless communication system.
  • NAN neighbor awareness networking
  • Wireless communication systems are widely deployed to provide various kinds of communication services such as voice and data.
  • a wireless communication system is a multiple access system capable of supporting communication with multiple users by sharing available system resources (bandwidth, transmission power, etc.).
  • multiple access systems include code division multiple access (CDMA) systems, frequency division multiple access (FDMA) systems, time division multiple access (TDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, and single carrier frequency (SC-FDMA).
  • CDMA code division multiple access
  • FDMA frequency division multiple access
  • TDMA time division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • MCD division multiple access
  • MCDMA multi-carrier frequency division multiple access
  • MC-FDMA multi-carrier frequency division multiple access
  • WLAN is based on radio frequency technology, and can be used in homes, businesses, or businesses by using portable terminals such as personal digital assistants (PDAs), laptop computers, and portable multimedia players (PMPs). It is a technology that allows wireless access to the Internet in a specific service area.
  • PDAs personal digital assistants
  • PMPs portable multimedia players
  • An object of the present specification is to provide a method and apparatus for performing a ranging operation by a NAN terminal in a wireless communication system.
  • An object of the present specification is to provide a method for sharing information for performing a ranging operation by a NAN terminal in a wireless communication system.
  • an object of the present invention is to provide a separate procedure for exchanging information on a ranging operation by a NAN terminal in a wireless communication system.
  • An object of the present specification is to provide a method of using an existing procedure for a NAN terminal to exchange information on a ranging operation in a wireless communication system.
  • a method for performing a ranging operation by a NAN terminal in a wireless communication system provides a method, in which a first NAN terminal transmits a first message for a first service to a second NAN terminal.
  • the method may include receiving a second message from the second NAN terminal and performing a ranging operation by the first NAN terminal and the second NAN terminal based on the first service.
  • at least one of the first message and the second message may include ranging flag information, and the ranging flag information may be information indicating whether a ranging operation is required to provide a first service.
  • a receiving module for receiving information from an external device, a transmitting module for transmitting information to an external device and a receiving module and a transmitting module It may include a processor for controlling.
  • the processor transmits the first message for the first service to the second NAN terminal by using the transmitting module, receives the second message from the second NAN terminal by using the receiving module, and the second NAN terminal and the first message.
  • the ranging operation may be performed based on the service.
  • at least one of the first message and the second message may include ranging flag information, and the ranging flag information may be information indicating whether a ranging operation is required to provide a first service.
  • At least one of the first message and the second message may further include attribute information on the ranging operation.
  • the attribute information on the ranging operation includes ranging resolution information, At least one of ranging interval information, ranging indication status information, and location constraint information may be included.
  • the ranging indication state information is performed based on at least one of an inner threshold and an outer threshold, and the result report of the ranging operation is performed. It can indicate whether or not.
  • the parameter of the publishing method is included in the attribute information of the ranging operation. It can consist of the information.
  • the first message may be a publish message.
  • the parameter of the subscribe method is included in the attribute information of the ranging operation. It can consist of the information.
  • the second message may be a subscribe message.
  • the ranging operation is performed based on a fine timing measurement (FTM) procedure, and the distance information between the first NAN terminal and the second NAN terminal based on the performed FTM procedure Can be obtained.
  • FTM fine timing measurement
  • the first NAN terminal and the second NAN terminal may report the acquired distance information to an upper layer.
  • flag information indicating whether security information on a ranging operation is required may be further included in at least one of the first message and the second message.
  • the first NAN terminal and the second NAN terminal are lanes based on shared key information. Gong operation can be performed.
  • the present disclosure may provide a method and apparatus for performing a ranging operation by a NAN terminal in a wireless communication system.
  • the present disclosure may provide a method for sharing information for performing a ranging operation by a NAN terminal in a wireless communication system.
  • the present specification may provide a separate procedure for exchanging information on a ranging operation by a NAN terminal in a wireless communication system.
  • the present specification may provide a method of using an existing procedure for a NAN terminal to exchange information on a ranging operation in a wireless communication system.
  • FIG. 1 is a diagram illustrating an exemplary structure of an IEEE 802.11 system.
  • 2 to 3 are diagrams illustrating a NAN cluster.
  • FIG. 4 illustrates a structure of a NAN terminal.
  • FIG. 7 is a diagram illustrating a state transition of a NAN terminal.
  • FIG. 8 is a diagram illustrating a discovery window and the like.
  • FIG. 10 is a diagram illustrating a method of forming a NAN data cluster.
  • FIG. 11 illustrates a method of forming a NAN data path.
  • FIG. 12 is a diagram illustrating a method of setting an NDL schedule.
  • FIG. 13 is a diagram illustrating a method for operating a NAN terminal based on an NDL and an NDC.
  • FIG. 14 is a diagram illustrating a method for operating a NAN terminal based on an NDL and an NDC.
  • 15 is a diagram illustrating a method of performing a ranging operation based on an FTM protocol.
  • 16 is a diagram illustrating a method of exchanging information on a ranging operation.
  • 17 is a diagram illustrating a method of performing a ranging operation based on a ranging request method.
  • FIG. 18 is a diagram illustrating a method of performing a ranging operation based on a publishing method including ranging related information.
  • 19 is a flowchart illustrating a method in which a NAN terminal performs a ranging operation.
  • 20 is a flowchart illustrating a method of performing a ranging operation by a NAN terminal.
  • 21 is a block diagram of a terminal device.
  • each component or feature may be considered to be optional unless otherwise stated.
  • Each component or feature may be embodied in a form that is not combined with other components or features.
  • some components and / or features may be combined to form an embodiment of the present invention.
  • the order of the operations described in the embodiments of the present invention may be changed. Some components or features of one embodiment may be included in another embodiment or may be replaced with corresponding components or features of another embodiment.
  • Embodiments of the present invention are provided by standard documents disclosed in at least one of the wireless access systems IEEE 802 system, 3GPP system, 3GPP LTE and LTE-Advanced (LTE-A) system, 3GPP2 system, Wi-Fi system and NAN system Can be supported. That is, steps or parts which are not described to clearly reveal the technical spirit of the present invention among the embodiments of the present invention may be supported by the above documents. In addition, all terms disclosed in the present document can be described by the above standard document.
  • CDMA code division multiple access
  • FDMA frequency division multiple access
  • TDMA time division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • CDMA may be implemented with a radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000.
  • TDMA may be implemented with wireless technologies such as Global System for Mobile communications (GSM) / General Packet Radio Service (GPRS) / Enhanced Data Rates for GSM Evolution (EDGE).
  • GSM Global System for Mobile communications
  • GPRS General Packet Radio Service
  • EDGE Enhanced Data Rates for GSM Evolution
  • first and / or second may be used herein to describe various components, but the components should not be limited by the terms. The terms are only for the purpose of distinguishing one component from another component, for example, without departing from the scope of rights in accordance with the concepts herein, the first component may be called a second component, and similarly The second component may also be referred to as a first component.
  • unit refers to a unit that processes at least one function or operation, which may be implemented in a combination of hardware and / or software.
  • FIG. 1 is a diagram showing an exemplary structure of an IEEE 802.11 system to which the present invention can be applied.
  • the IEEE 802.11 architecture may be composed of a plurality of components, and by their interaction, a WLAN may be provided that supports transparent STA mobility for higher layers.
  • the Basic Service Set (BSS) may correspond to a basic building block in an IEEE 802.11 WLAN.
  • FIG. 1 exemplarily shows that two BSSs (BSS1 and BSS2) exist and include two STAs as members of each BSS (STA1 and STA2 are included in BSS1 and STA3 and STA4 are included in BSS2). do.
  • an ellipse representing a BSS may be understood to represent a coverage area where STAs included in the BSS maintain communication. This area may be referred to as a basic service area (BSA).
  • BSA basic service area
  • the most basic type of BSS in an IEEE 802.11 WLAN is an independent BSS (IBSS).
  • the IBSS may have a minimal form consisting of only two STAs.
  • the BSS (BSS1 or BSS2) of FIG. 1, which is the simplest form and other components are omitted, may correspond to a representative example of the IBSS. This configuration is possible when STAs can communicate directly.
  • this type of WLAN is not configured in advance, but may be configured when a WLAN is required, and may be referred to as an ad-hoc network.
  • the membership of the STA in the BSS may be dynamically changed by turning the STA on or off, the STA entering or exiting the BSS region, and the like.
  • the STA may join the BSS using a synchronization process.
  • the STA In order to access all services of the BSS infrastructure, the STA must be associated with the BSS. This association may be set up dynamically and may include the use of a Distribution System Service (DSS).
  • DSS Distribution System Service
  • FIG. 1 illustrates components of a distribution system (DS), a distribution system medium (DSM), an access point (AP), and the like.
  • DS distribution system
  • DSM distribution system medium
  • AP access point
  • the station-to-station distance directly in the WLAN may be limited by PHY performance. In some cases, this distance limit may be sufficient, but in some cases, communication between more distant stations may be necessary.
  • the distribution system DS may be configured to support extended coverage.
  • the DS refers to a structure in which BSSs are interconnected. Specifically, instead of the BSS independently as shown in FIG. 1, the BSS may exist as an extended type component of a network composed of a plurality of BSSs.
  • DS is a logical concept and can be specified by the nature of the distribution system medium (DSM).
  • the IEEE 802.11 standard logically distinguishes between wireless medium (WM) and distribution system media (DSM). Each logical medium is used for a different purpose and is used by different components.
  • the definition of the IEEE 802.11 standard does not limit these media to the same or to different ones. In this way the plurality of media are logically different, the flexibility of the IEEE 802.11 WLAN structure (DS structure or other network structure) can be described. That is, the IEEE 802.11 WLAN structure can be implemented in various ways, the corresponding WLAN structure can be specified independently by the physical characteristics of each implementation.
  • the DS may support the mobile device by providing seamless integration of multiple BSSs and providing logical services for handling addresses to destinations.
  • An AP refers to an entity that enables access to a DS through WM for associated STAs and has STA functionality. Data movement between the BSS and the DS may be performed through the AP.
  • STA2 and STA3 shown in FIG. 1 have the functionality of a STA, and provide a function to allow associated STAs STA1 and STA4 to access the DS.
  • all APs basically correspond to STAs, all APs are addressable entities. The address used by the AP for communication on the WM and the address used by the AP for communication on the DSM need not necessarily be the same.
  • Data transmitted from one of the STAs associated with an AP to the STA address of that AP may always be received at an uncontrolled port and processed by an IEEE 802.1X port access entity.
  • transmission data (or frame) may be transmitted to the DS.
  • the operation of the STA operating in the WLAN system may be described in terms of a layer structure.
  • the hierarchy may be implemented by a processor.
  • the STA may have a plurality of hierarchical structures.
  • the hierarchical structure covered by the 802.11 standard document is mainly the MAC sublayer and physical (PHY) layer on the DLL (Data Link Layer).
  • the PHY may include a Physical Layer Convergence Procedure (PLCP) entity, a Physical Medium Dependent (PMD) entity, and the like.
  • PLCP Physical Layer Convergence Procedure
  • PMD Physical Medium Dependent
  • the MAC sublayer and PHY conceptually contain management entities called MAC sublayer management entities (MLMEs) and physical layer management entities (PLMEs), respectively.These entities provide a layer management service interface on which layer management functions operate. .
  • SME Station Management Entity
  • An SME is a layer-independent entity that can appear to be in a separate management plane or appear to be off to the side. While the exact features of the SME are not described in detail in this document, they generally do not include the ability to collect layer-dependent states from various Layer Management Entities (LMEs), and to set similar values for layer-specific parameters. You may seem to be in charge. SMEs can generally perform these functions on behalf of general system management entities and implement standard management protocols.
  • LMEs Layer Management Entities
  • the aforementioned entities interact in a variety of ways.
  • entities can interact by exchanging GET / SET primitives.
  • a primitive means a set of elements or parameters related to a particular purpose.
  • the XX-GET.request primitive is used to request the value of a given MIB attribute (management information based attribute information).
  • the XX-GET.confirm primitive is used to return the appropriate MIB attribute information value if the Status is "Success", otherwise it is used to return an error indication in the Status field.
  • the XX-SET.request primitive is used to request that the indicated MIB attribute be set to a given value. If the MIB attribute means a specific operation, this is to request that the operation be performed.
  • the XX-SET.confirm primitive confirms that the indicated MIB attribute is set to the requested value when status is "success", otherwise it is used to return an error condition in the status field. If the MIB attribute means a specific operation, this confirms that the operation has been performed.
  • the MLME and SME may exchange various MLME_GET / SET primitives through a MLME_SAP (Service Access Point).
  • various PLME_GET / SET primitives may be exchanged between PLME and SME through PLME_SAP and may be exchanged between MLME and PLME through MLME-PLME_SAP.
  • the NAN network may consist of NAN terminals using the same set of NAN parameters (eg, time interval between successive discovery windows, interval of discovery window, beacon interval or NAN channel, etc.).
  • the NAN terminals may configure a NAN cluster, where the NAN cluster uses the same set of NAN parameters and means a set of NAN terminals synchronized to the same discovery window schedule.
  • 2 shows an example of a NAN cluster.
  • a NAN terminal belonging to a NAN cluster may directly transmit a multicast / unicast NAN service discovery frame to another NAN terminal within a range of a discovery window.
  • one or more NAN masters may exist in the NAN cluster, and the NAN master may be changed.
  • the NAN master may transmit both a sync beacon frame, a discovery beacon frame, and a NAN service discovery frame.
  • the NAN terminal is based on a physical layer of 802.11, and includes a NAN discovery engine, a NAN medium access control (MAC), and applications (Application 1, Application 2, ..., Application N).
  • NAN APIs are the main component.
  • the service request and response are processed through the NAN discovery engine, and the NAN MAC processes the NAN Beacon frames and the NAN Service Discovery frame.
  • the NAN discovery engine can provide the functionality of subscribe, publish, and follow-up.
  • the publish / subscribe function operates from the service / application through the service interface. When the publish / subscribe command is executed, an instance of the publish / subscribe function is created. Each instance runs independently, and depending on the implementation, several instances can run simultaneously.
  • the follow-up function is a means for a service / application to send and receive service specific information.
  • the NAN terminal may perform a master role and this may be changed. That is, the NAN terminal may transition various roles and states, and an example thereof is illustrated in FIG. 7.
  • the role and state that a NAN terminal may have include a master (hereinafter, master is a master role and sync.State), a non-master sync, a non-master non-sync Sync) and the like.
  • master is a master role and sync.State
  • non-master sync a non-master non-sync Sync
  • Each role and state may determine whether to transmit a discovery beacon frame and / or a sync beacon frame, which may be illustrated in Table 1 below.
  • the state of the NAN terminal may be determined through a master rank.
  • the master rank indicates the will of the NAN terminal to operate as a NAN master. In other words, a large value indicates a large preference for the NAN master.
  • NAN MR may be determined by the following equation (1) by the Master Preference, Random Factor, Device MAC address.
  • the Master Preference, Random Factor, and Device MAC address may be indicated through a master indication attribute included in a NAN Beacon frame.
  • the master indication attorney may be as illustrated in Table 2 below.
  • the NAN terminal that activates the NAN service and starts the NAN cluster sets both the Master Preference and the Random Factor to 0, and resets the NANWarmUp. Until the NANWarmUp expires, the NAN terminal should set the Master Preference field value in the master indication attribute to a value greater than 0 and set the Random Factor value in the master indication attribute to a new value.
  • a NAN terminal joining a NAN cluster having an anchor master's Master Preference set to a value greater than 0 may set the Master Preference to a value greater than 0 and set a Random Factor to a new value regardless of whether NANWarmUp expires. .
  • the NAN terminal may be an anchor master of the NAN cluster according to the MR value. That is, all NAN terminals have the capability to operate as an anchor master.
  • the anchor master means a device having the largest MR in the NAN cluster, having a HC (Hop count to the Anchor Master) value of 0 and having the smallest Anchor Master Beacon Transmit Time (AMBTT) value.
  • Two anchor masters may exist temporarily in a NAN cluster, but one anchor master is a principle.
  • the NAN terminal which becomes the anchor master in the already existing NAN cluster uses the time synchronization function (TSF) used in the existing NAN cluster as it is.
  • TSF time synchronization function
  • the NAN terminal may be an anchor master in the following case.
  • a new NAN cluster is started, when a master rank is changed (when the MR value of another NAN terminal is changed or when the anchor master's own MR is changed), or when the beacon frame of the current anchor master is no longer received, the NAN The terminal may be an anchor master.
  • the NAN terminal may lose the status of the anchor master.
  • the anchor master may be determined by an anchor master selection algorithm as described below. That is, the anchor master selection is an algorithm for determining which NAN terminal is the anchor master of the NAN cluster, and each NAN terminal drives the anchor master selection algorithm when participating in the NAN cluster.
  • the NAN terminal When the NAN terminal starts a new NAN cluster, the NAN terminal becomes an anchor master of the new NAN cluster. NAN sync beacon frames with hop counters exceeding the threshold are not used by the NAN terminal. Otherwise NAN sync beacon frame is used to determine the anchor master of the NAN cluster.
  • the NAN terminal Upon receiving a NAN sync beacon frame having a hop counter that does not exceed the threshold, the NAN terminal compares the stored anchor master rank value with the anchor master rank value in the beacon frame. If the stored anchor master rank value is larger than the anchor master value in the beacon frame, the NAN terminal discards the anchor master value in the beacon frame. If the stored anchor master rank value is smaller than the anchor master value in the beacon frame, the NAN terminal stores a new value increased by 1 in the anchor master rank and the hop counter included in the beacon frame and the AMBTT value in the beacon frame. Also, if the stored anchor master rank value is equal to the anchor master value in the beacon frame, the hop counter is compared. If the hop counter value of the beacon frame is larger than the stored value, the NAN terminal ignores the received beacon frame.
  • the NAN terminal When the hop counter value of the beacon frame is equal to (stored value-1) and the AMBTT value is larger than the stored value, the NAN terminal newly stores the AMBTT value of the beacon frame. If the hop counter value of the beacon frame is less than (stored value-1), the NAN terminal increments the hop counter value of the beacon frame by one.
  • the stored AMBTT value is updated according to the following rules. If the received beacon frame is transmitted by the anchor master, the AMBTT value is set to the lowest 4 octet value of the time stamp included in the beacon. If the received beacon frame is received from a device other than the NAN master or master sink, the AMBTT value is set to a value included in the NAN cluster attribute of the received beacon.
  • the NAN terminal assumes itself as an anchor master and sets an anchor master record. You can update it.
  • the NAN terminal other than the anchor master compares the changed MR with the stored value. If the changed MR value of the NAN terminal is larger than the stored value, the NAN terminal may assume itself as an anchor master and update the anchor master record.
  • the NAN terminal sets the anchor master field of the cluster attribute in the NAN sync and discovery beacon frame to the value in the anchor master record, except when the anchor master sets the AMBTT value to the TSF value of the corresponding beacon transmission. Can be.
  • the NAN terminal transmitting the NAN sync or discovery beacon frame may ensure that the TSF of the beacon frame will be derived from the same anchor master included in the cluster attribute.
  • the NAN terminal i) when the NAN beacon indicates an anchor master rank of a value larger than the anchor master record of the NAN terminal, ii) the NAN beacon indicates an anchor master rank of the same value as the anchor master record of the NAN terminal,
  • the TSF timer value in the NAN beacon received with the same cluster ID may be applied.
  • NAN terminals participating in the same NAN cluster may be synchronized to a common clock.
  • TSF of the NAN cluster may be implemented by a distributed algorithm that must be performed in all NAN terminals.
  • Each NAN terminal participating in the NAN cluster may transmit NAN Sync. Beacon frames according to the algorithm.
  • the device may synchronize its clock during the discovery window DW.
  • the length of the discovery window is 16 TUs.
  • one or more NAN terminals may transmit synchronization beacon frames to help all NAN terminals in the NAN cluster synchronize their clocks.
  • the transmission time of the NAN Beacon frame is a discovery window interval existing every 512 TUs. All NAN terminals may participate in NAN beacon generation and transmission according to the role and state of the device. Each NAN terminal must maintain its own TSF timer used for NAN beacon cycle timing.
  • the NAN sync beacon period may be established by the NAN terminal generating the NAN cluster. A series of TBTTs are defined such that the discovery window interval that can transmit a sync beacon frame is exactly 512 TU apart. A time of zero is defined as the first TBTT, and the discovery window starts at each TBTT.
  • Each NAN terminal serving as a master transmits a NAN discovery beacon frame outside the NAN discovery window.
  • the NAN terminal in the master role transmits the NAN discovery beacon every 100 TUs.
  • the time between successive NAN discovery beacons transmitted from the same NAN terminal is 200 TUs or less.
  • the NAN terminal in the master role may omit transmission of the NAN discovery beacon.
  • the NAN terminal in the master role may use a WMM Access Category-Voice (AC_VO) contention setting.
  • AC_VO WMM Access Category-Voice
  • FIG. 8 illustrates a relationship between the transmission of the NAN discovery beacon frame, the NAN sync / discovery beacon frame, and the discovery window.
  • FIG. 8 (a) shows transmission of a NAN discovery beacon and a sync beacon frame of a NAN terminal operating in a 2.4 GHz band
  • FIG. 8 (b) shows a NAN discovery beacon and synchronization of a NAN terminal operating in a 2.4 GHz and a 5 GHz band. Indicates transmission of a beacon frame.
  • each NAN terminal serving as a master may transmit a synchronization beacon frame in the discovery window and may transmit a discovery beacon frame outside the discovery window.
  • the discovery window may be repeated every 512 TUs.
  • the duration of the discovery window may be 16 TU.
  • the discovery window may last for 16 TUs.
  • all NAN terminals in the NAN cluster are awakened for each discovery window to receive a synchronization beacon frame from the master NAN terminal, thereby maintaining the NAN cluster.
  • power consumption of the terminal may be severe. Therefore, there may be a need for a method of reducing power consumption by dynamically controlling the duration of the discovery window while maintaining synchronization in one NAN cluster.
  • the NAN terminal may operate in the 2.4 GHz band or the 5 GHz band.
  • the NAN terminal may operate in the Sub 1 GHz band.
  • the NAN terminal may be configured to support IEEE 802.11ah supporting the Sub 1 GHz band.
  • the NAN terminal may have a different link quality and physical model from 2.4GHz or 5GHz.
  • the NAN terminal when the NAN terminal supports 900MHz, the NAN terminal may transmit a signal farther, and may perform communication in a wide range. In this case, data communication between NAN terminals may be performed, and data may be exchanged between NAN terminals.
  • the method of efficiently operating power in the NAN terminal may be a problem because it is based on data communication.
  • a method of setting a discovery window section may be differently set. 9 is a basic structure in which a synchronization beacon frame is transmitted within a discovery window and a discovery beacon frame is transmitted outside the discovery window, and may be similarly applied to a NAN terminal supporting a 900 MHz band.
  • FIG. 10 is a diagram illustrating a method of forming a NAN data cluster.
  • NAN terminals As described above, data exchange between NAN terminals may be performed.
  • the AP or GO may inform the client terminal of its existence by transmitting a beacon frame, and may perform parameter update for data / system based on the presence or absence of traffic. Therefore, there is a need for a terminal for controlling parameter updates based on traffic even in communication between NAN terminals.
  • NAN terminals may perform a setup process and data communication for data communication between a discovery window (DW).
  • the NAN data path may be a path through which NAN terminals perform data exchange between discovery windows.
  • two NAN terminals may form a NAN Data Link (NDL).
  • NDL NAN Data Link
  • two NAN terminals may perform data exchange in the NAN data path based on the NAN data link.
  • NDL schedule NDL Schedule for NAN data link of two NAN terminals may be formed, which will be described later.
  • the NAN terminals may form a NAN data cluster (NDC).
  • NDC NAN data cluster
  • the NAN data cluster may be a set of NAN terminals having at least one NAN data link.
  • NAN terminals in the NAN data cluster may have a common NDC schedule.
  • the NDL schedule may be a superset of the NDC schedule. That is, the plurality of NAN terminals forming the NAN data link may have an NDC schedule as a common schedule.
  • a service provider NAN terminal may exist in the NAN data cluster.
  • there may be a scheduler NAN terminal that performs a role for schedule management in the NAN data cluster.
  • the scheduler NAN terminal may play a role similar to the above-described AP or GO, which will be described later.
  • a plurality of NAN terminals may exist in a NAN cluster.
  • the first NAN terminal 1010 and A and the second NAN terminal 1020 and B may have a NAN data link.
  • the second NAN terminal 1020 and B and the third NAN terminal 1030 and C may have a NAN data link.
  • the first NAN terminals 1010 and A, the second NAN terminals 1020 and B, and the third NAN terminals 1030 and C may have one NAN data cluster.
  • the NDL schedules of the first NAN terminals 1010 and A and the second NAN terminals 1020 and B and the NDL schedules of the second NAN terminals 1020 and B and the third NAN terminals 1030 and C are commonly NDC schedules. It may include. That is, the first NAN terminals 1010 and A, the second NAN terminals 1020 and B, and the third terminals 1030 and C included in the same NAN data cluster may have a common NDC schedule. In addition, other NAN data clusters may be formed within the NAN cluster. In addition, the NAN terminals may be included in a plurality of NAN data links and a plurality of NAN data clusters. For example, the third NAN terminals 1030 and C may be included in a plurality of NAN data clusters, and the present invention is not limited to the above-described embodiment.
  • FIG. 11 illustrates a method of forming a NAN data path.
  • two NAN terminals may establish a NAN data path based on the NAN data link.
  • one of the two NAN terminals may be an NDP responder NAN terminal (NDP Responder) 1110 and one may be an NDP initiator NAN terminal (NDP Initiator, 1120). That is, the NAN terminal to start data path formation among two NAN terminals may be an NDP initiator NAN terminal, and the responding terminal may be an NDP responder NAN terminal.
  • NDP Responder NDP responder NAN terminal
  • NDP Initiator NDP initiator NAN terminal
  • the service / application terminal of the NDP initiator NAN terminal 1120 may call a data request (DataRequest ()) method with the NAN DE and MAC terminals.
  • the NDP initiator NAN terminal 1120 may transmit an NDP request to the NDP responder NAN terminal 1110.
  • the NAN DE and NAN MAC terminals of the NDP responder NAN terminal 1110 may call a data indication (DataIndication ()) event to the service / application terminal.
  • the service / application terminal of the NDP responder NAN terminal 1110 may call a data response (DataResponse ()) method to the NAN DE and NAN MAC terminals.
  • the NDP responder NAN terminal 1110 may transmit an NDP response to the NDP initiator NAN terminal 1120.
  • the NDP responder NAN terminal 1110 and the NDP initiator NAN terminal 1120 may perform NDL setup.
  • the NDL setting may be set through an NDL schedule. Thereafter, the NDP responder NAN terminal 1110 and the NDP initiator NAN terminal 1120 may call a DataConfirm () event. Thereafter, the NDP responder NAN terminal 1110 and the NDP initiator NAN terminal 1120 may perform data communication. Through this, two NAN terminals in the NAN cluster may perform data exchange with each other, and are not limited to the above-described embodiment. Parameters for the above-described methods and events are described below.
  • FIG. 12 is a diagram illustrating a method of setting an NDL schedule.
  • two NAN terminals may exchange messages for establishing a NAN data path.
  • one of the two NAN terminals may be an NDL Schedule Initiator NAN terminal 1220, and the other may be an NDL Schedule Responder NAN terminal 1210.
  • the above-described NDP initiator NAN terminal may be an NDL schedule initiator terminal
  • an NDP responder NAN terminal may be an NDL schedule responder terminal.
  • the NDL schedule starter NAN terminal 1220 may select an NDC schedule for an NDL schedule.
  • the NDL schedule initiator NAN terminal 1220 may form a new NAN data cluster to select an NDC schedule.
  • a new NAN cluster may be formed by the NDL schedule initiator NAN terminal 1220.
  • the NDL schedule initiator NAN terminal 1220 may select any one of NDC schedules of a participating NAN data cluster.
  • the NDL schedule initiator NAN terminal 1220 may transmit an NDL schedule request to the NDL schedule responder NAN terminal 1210. Thereafter, the NDL schedule responder NAN terminal 1210 may transmit an NDL schedule response to the NDL schedule initiator NAN terminal 1220.
  • the NDL schedule initiator NAN terminal 1210 and the NDL schedule responder NAN terminal 1220 may set an NDL schedule.
  • FIG. 13 is a diagram illustrating a method for operating a NAN terminal based on an NDL and an NDC.
  • NAN terminals may have a NAN data link and a NAN data cluster.
  • NAN terminals may exchange information for data exchange through an NDL schedule, which is a schedule for a NAN data link.
  • NAN terminals in the NAN data cluster may exchange information on the NAN data cluster and information on data exchange through an NDC schedule, which is a schedule for the NAN data cluster.
  • the NDL schedule may be a superset of the NDC schedule, as described above.
  • NAN terminals may operate at 2.4 GHz and / or 5 GHz. At this time, the NAN terminals may perform synchronization or exchange frames in the discovery window, as described above. In this case, NAN terminals may transmit data between discovery windows. That is, a resource block for data communication may be set between the discovery windows. In this case, the NAN terminals may have an NDL schedule and an NDC schedule in a resource block set between discovery windows. In addition, NAN terminals may perform data communication in resource blocks set between discovery windows.
  • the NDL schedule may have one or more time blocks between discovery windows.
  • the time block may be set as a bundle of a plurality of consecutive slots in units of 16 TUs.
  • the two NAN terminals forming the NDL may share information on when and through which channel through NDL schedule negotiation. That is, information necessary for data communication between two NAN terminals forming an NDL in an NDL schedule may be exchanged. Accordingly, for the NAN data path and the NAN data link, two NAN terminals may operate by updating their existence and related parameter information through the NDL schedule. In this case, when only one NAN terminal transmits a message, if a message is idle after performing a clear channel assessment (CCA) without contention, the message may be transmitted. However, when a plurality of NAN terminals transmit a message, a contention window (CW) value may be preset and transmitted.
  • CCA clear channel assessment
  • a scheduler NAN terminal and a non-scheduler NAN terminal for an NDL schedule may be determined.
  • Two NAN terminals may determine a scheduler NAN terminal and a non-scheduler NAN terminal based on the above-described NDL schedule request and NDL schedule response. That is, two NAN terminals may determine a scheduler NAN terminal and a non-scheduler NAN terminal through negotiation, and are not limited to the above-described embodiment.
  • FIG. 14 is a diagram illustrating a method for operating a NAN terminal based on an NDL and an NDC.
  • a time window from 0 TU to 16TU may correspond to a discovery window period.
  • the discovery window from 0TU to 16TU may be a discovery window related to operation at 2.4 GHz.
  • from 128TU to 144TU may also be a discovery window.
  • the discovery window from 128 TU to 144 TU may be a discovery window associated with operation at 5 GHz.
  • one cycle to 512 TU is completed and the next discovery window interval may arrive.
  • time blocks 1410, 1420, and 1430 may be set between the discovery windows.
  • an NDL schedule may be set in the above-described time blocks 1410, 1420, and 1430. That is, the above-described time blocks 1410, 1420, and 1430 may be time blocks for an NDL schedule.
  • data exchange may be performed between NAN terminals in another section between discovery windows, as described above. For example, two NAN terminals may perform data exchange after a time block corresponding to an NDL schedule. That is, the NDL schedule may be set to exchange necessary information before two NAN terminals perform data exchange.
  • any one of the time blocks 1410, 1420, and 1430 may be set as a time block for an NDC schedule. In this case, information commonly applied to the NAN data cluster may be exchanged in the NDC schedule.
  • the NAN terminals may perform data exchange based on the NAN data link and the NAN data cluster.
  • the distance between the NAN terminals may affect communication performed for data exchange.
  • the NAN terminals may perform communication for data exchange only when located within a predetermined distance based on a characteristic of a service or another reason.
  • NAN terminals may perform a ranging operation for measuring a distance between them. That is, NAN terminals may perform data exchange and / or communication for a specific service only within a predetermined distance based on a ranging operation.
  • FIG. 15 is a diagram illustrating a method of performing ranging operations by NAN terminals.
  • NAN terminals may provide services or perform data exchange for services, as described above.
  • the NAN terminals may be limited in performing communication.
  • a specific service for NAN terminals may operate only when there are NAN terminals within a threshold distance.
  • a definition of a ranging operation for checking the distance between the NAN terminals may be required. That is, an operation for acquiring distance information between the NAN terminals in the NAN cluster may be defined.
  • the plurality of NAN terminals may form a NAN cluster (or NAN data cluster).
  • the NAN terminals 1110 and 1120 in the NAN cluster may set a ranging operation in one or more time blocks for the ranging operation.
  • the distance measurement of the NAN terminals may be performed based on the FTM protocol, which will be described later.
  • 16 is a diagram illustrating a method of performing a ranging operation based on a service.
  • the NAN terminals need to obtain distance information between each other based on a ranging operation.
  • the NAN terminal may use a publish and / or subscribe message to perform a ranging operation.
  • the publish and / or subscribe message may include attribute information on ranging.
  • the attribute information on the ranging may be ranging setup attribute information.
  • the above-described publish and / or subscribe message may be in the form of a service discovery frame.
  • the ranging attribute field may be included in the service discovery frame and may be as shown in Table 3 below. At this time, any one of bits reserved in Table 3 may be used as a ranging configuration attribute field.
  • an attribute ID is set to 14, but is not limited thereto. That is, any one of the reserved bits may be defined as a ranging configuration attribute field, and is not limited to the above-described embodiment.
  • ranging related attribute information may be included in other types of publishing and / or subscription messages.
  • the NAN terminal may include ranging related attribute information in the publish and / or subscribe message to perform the ranging operation.
  • the ranging operation may be performed by the NAN terminal calling a method.
  • the method called by the NAN terminal may be a ranging request method (Ranging Request () Method) or a ranging response method (Rangig Response () Method) as a method for a ranging operation, which will be described later. .
  • 17 is a diagram illustrating a method of performing a ranging operation based on a ranging request method.
  • the NAN terminal may transmit the ranging information to another NAN terminal based on the method for the ranging operation and perform the ranging operation.
  • the service / application terminal of the first NAN terminal 1710 may call a ranging request method.
  • the ranging request method may include parameters as shown in Table 4 below. That is, the ranging request method may include at least one or more of address information (MAC_Address), ranging ID (Ranging ID) information, and configuration information (Configuration_Parameter).
  • the setting information may be setting information for performing a ranging operation.
  • the configuration information may include ranging resolution information.
  • the ranging resolution information may be information on how far to determine the accuracy of the ranging. For example, when the threshold for distance information is small among NAN terminals, there is a need for high accuracy required for distance measurement. On the other hand, if the threshold for distance information between NAN terminals is large, the accuracy required for distance measurement may be lower, and the ranging resolution information may be information considering this.
  • the setting information may include interval information on which a ranging operation is performed as ranging interval information.
  • the configuration information may include information on a ranging indication condition.
  • the ranging indication state value is “Continuous (default)
  • the result of the ranging operation may be continuously reported.
  • the ranging indication state value is set to “Ingress”
  • the result of the ranging operation may be reported only when the NAN terminal is moved to a range within an inner threshold.
  • the ranging indication state value is set to "Egress”
  • the result of the ranging operation may be reported only when the NAN terminal is moved to a range other than an outer threshold.
  • the ranging indication state value is set to “both_Ingress_Egress,” the result of the ranging operation when the NAN terminal is moved to a range within the internal threshold or the NAN terminal is moved to a range other than the external threshold. Can be reported.
  • the ranging indication state value may be information indicating whether a ranging operation is performed by performing a ranging operation based on whether the threshold value NAN terminal is moved or not.
  • the NAN terminal may control the ranging operation not to be performed when it is unnecessary, and is not limited to the above-described embodiment.
  • the Geo Fence description parameter may be further included in the setting information.
  • the Geo Fence description parameter may be a valid value only when the ranging indication state is “Ingress”, “Egress”, or “both_Ingress_Egress”.
  • the Geo Fence description parameter may be information about a distance between which each threshold value is valid.
  • the internal threshold value of the Geo Fence description parameter may indicate information on the range to which the internal threshold of the ranging indication state applies when the ranging indication state is “Ingress” or “both_Ingress_Egress”.
  • the external threshold value of the Geo Fence description parameter may indicate information on the extent to which the external threshold of the ranging indication state applies when the ranging indication state is “Egress” or “both_Ingress_Egress”. It is not limited to the above-mentioned embodiment.
  • the first NAN terminal 1710 may transmit a frame including attribute information on ranging to the second NAN terminal 1720.
  • the frame including the attribute information on the ranging may be a NAN Management Frame (NMF).
  • NMF NAN Management Frame
  • the service / application terminal of the second NAN terminal 1720 may call a ranging response method.
  • the ranging response method may be as shown in Table 5 below.
  • the ranging response method may include parameter information indicating whether an automatic response is performed and whether a matching filter is included.
  • the ranging response method may also include configuration parameters in the same manner as the ranging request method.
  • the configuration information may be information about a ranging operation, which may be similar to the configuration information included in the ranging request method.
  • the second NAN terminal 1720 may transmit a frame including ranging setting information to the first NAN terminal 1710 based on the ranging request method.
  • the frame including the ranging setting information may be the above-described NMF.
  • the first NAN terminal 1710 and the second NAN terminal 1720 may obtain ranging information by performing a ranging operation, as described above.
  • FIG. 18 is a diagram illustrating a method of performing a ranging operation based on a publishing method including ranging related information.
  • the NAN terminal may transmit attribute information on the ranging to another NAN terminal based on the publishing method without calling the ranging request method as described above.
  • the first NAN terminal 1810 may call a publishing method.
  • the publishing method may include an ID for a service.
  • the publishing method may further include information about Table 6 below.
  • the publishing method may include configuration parameters.
  • the setting information may include NAN Ranging flag information.
  • the ranging flag information may indicate whether a ranging operation is essential for a specific service.
  • the configuration information may further include ranging resolution, ranging interval, and ranging indication state information, which may be the same information as the information included in the above-mentioned ranging request method. It is not limited to.
  • the first NAN terminal 1810 may transmit a frame including attribute information on ranging to the second NAN terminal 1820.
  • the frame may be the above-described service discovery frame (SDF).
  • the attribute information on the ranging may be as shown in Table 3 above as ranging setting information.
  • the service / application unit also subscribe method of the second NAN terminal 1820 may be called.
  • the subscription method may also include parameter information on ranging in the same manner as the above-described publishing method, and may be as shown in Table 7 below.
  • the second NAN terminal 1820 may call the subscribe method.
  • the subscription method may include an ID for a service.
  • the subscription method may further include information about Table 7 below.
  • the publishing method may include configuration parameters.
  • the setting information may include NAN Ranging flag information.
  • the ranging flag information may indicate whether a ranging operation is essential for a specific service. For example, when the ranging flag information is the first value, a ranging operation for a specific service may be essential. That is, when NAN terminals provide a service, distance information needs to be necessarily measured.
  • the configuration information may further include ranging resolution, ranging interval, and ranging indication state information, which may be the same information as the information included in the above-mentioned ranging request method. It is not limited to.
  • the second NAN terminal 1820 receives the frame including the attribute information on the ranging and then transfers the frame including the attribute information on the ranging to the first NAN terminal 1810 based on the called subscription method.
  • the frame may be the above-described service discovery frame (SDF).
  • the attribute information on the ranging may be as shown in Table 3 above as ranging setting information.
  • the first NAN terminal 1810 and the second NAN terminal 1820 may perform a ranging operation to obtain a result of distance measurement.
  • the publishing / subscribe method that is called when the first NAN terminal 1810 and the second NAN terminal 1820 perform communication for a specific service may further include a parameter for ranging.
  • each publish / subscribe method may include flag information indicating whether a ranging operation is required. If the flag information indicates that a ranging operation is required, each publish / subscribe method may further include parameter information on ranging. Thereafter, the publish / subscribe message transmitted by each NAN terminal may further include attribute information on ranging, and is not limited to the above-described embodiment.
  • parameters for ranging may be set in the publish / subscribe method, and attribute information about ranging may be included in the publish / subscribe message to be exchanged between NAN terminals. have.
  • flag information indicating whether a ranging operation is essential for a specific service may be included, as described above.
  • flag information indicating whether a ranging operation is essential may be included in the publish / subscribe message.
  • security-related information on the ranging operation (or ranging process) may be further included in the publish / subscribe message.
  • a parameter for security-related information on a ranging operation may be included in the publish / subscribe method.
  • the security related information about the ranging operation may be included as flag information as a secure mode or a normal mode. That is, when operating in the security mode, the ranging operation may operate in consideration of a security-related policy, and is not limited to the above-described embodiment.
  • the flag information on the security related information may be included in the NMF as a frame transmitted based on the ranging request method or the ranging response method.
  • the attribute information on the ranging or the setting information on the ranging is exchanged, it is necessary to perform the supplementary related setting, and the key information of Table 8 may be used.
  • the NMF's Master Key ID is based on a certain function, and the NMF MK (Pairwise Master Key) variable, “NMF MK name”, and the authenticator's NAN interface address ( It may be generated through variables for the Authenticator's NAN Management Interface address or NAN Interface address (AA) and the provider's NAN Management Interface address or NAN Interface address (SPA).
  • the NMF's Master Key ID may be based on a certain function, including NMF MK (Pairwise Master Key) variables, “NMF MK name”, and the authenticator's NAN interface address.
  • NMF MK Packet Management Interface address
  • AA Authenticator's NAN Management Interface address
  • SPA Supplier's NAN Management Interface address or NAN Interface address
  • Supplicant's It can be created through variables for Nonce and Snonce). That is, a separate procedure from unicast / multicast may be required for sharing NMF_MK or TK_SA (Security Association) of NMF.
  • the NAN terminal constituting the NAN interface address pair may be distinguished through the NMF-MKID shown in Table 8 below.
  • NAN terminals may perform a separate security policy in the process of performing the ranging operation.
  • NMF_MK or TK_SA may be set as shown in Table 9 below.
  • a security method for a paging message may be set in relation to the security mode described above.
  • a paging message may be configured by including paging attribute information in the NMF and distinguishing target lists by NAN MAC address / Identifier.
  • NMF Network Mobility Management Function
  • a paging attribute information in the NMF and distinguishing target lists by NAN MAC address / Identifier.
  • it may be difficult to encrypt the transmission frame as a security application for the paging message. Therefore, there is a need to define a broadcast MAC address or a multicast MAC address for paging. For example, an IPv6 Ethernet MAC address may be used instead.
  • an encryption key generation and distribution applied to a paging frame may be previously shared when the NDL / NDP configuration or multicast group is applied.
  • a common group key required for the paging group may be shared in advance.
  • group keys for pre-shared services are reused or paging in a one-to-many or many-to-many manner. You can create and share a group key for.
  • the MAC address for the paging frame may apply the IPv6 Ethernet MAC address to the NMF.
  • 19 is a flowchart illustrating a method in which a NAN terminal performs a ranging operation.
  • the first NAN terminal may transmit a first message for the first service to the second NAN terminal (S1910).
  • the NAN terminal may perform communication for a specific service. Can be.
  • the NAN terminal may perform data exchange for a specific service through the NAN data path, as described above.
  • the first message may include ranging flag information indicating whether a ranging operation is essential with respect to the first service as a specific service.
  • the distance between the NAN terminals may be important. That is, when the distance between the NAN terminals is too far, a specific service may be meaningless.
  • the first message may include attribute information of the ranging operation.
  • the attribute information on the ranging operation includes ranging resolution information, ranging interval information, ranging indication condition information, and geofence description information. At least one or more may be included, as described above.
  • the first message may be a publish message. Also, as an example, the first message may be a subscription message, and is not limited to the above-described embodiment.
  • the second message may be received from the second NAN terminal (S1920).
  • the ranging message information may also be included in the second message.
  • the second message may include attribute information of the ranging operation.
  • the attribute information on the ranging operation includes ranging resolution information, ranging interval information, ranging indication condition information, and geofence description information. At least one or more may be included, as described above.
  • the second message may be a publish message. Also, as an example, the second message may be a subscription message, and is not limited to the above-described embodiment.
  • the first NAN terminal and the second NAN terminal may perform a ranging operation on the basis of the first service.
  • the ranging operation is an FTM procedure. It can be performed based on.
  • the first NAN terminal and the second NAN terminal may report the result value to the higher layer based on the ranging operation. That is, the first NAN terminal and the second NAN terminal may obtain the distance information between the NAN terminals through a ranging operation, as described above.
  • 20 is a flowchart illustrating a method of performing a ranging operation by a NAN terminal.
  • the first NAN terminal may transmit a first message for the first service to the second NAN terminal (S2010).
  • the NAN terminal may perform communication for a specific service. Can be.
  • the NAN terminal may perform data exchange for a specific service through the NAN data path, as described above.
  • the first message may include ranging flag information indicating whether a ranging operation is essential with respect to the first service as a specific service.
  • the distance between the NAN terminals may be important. That is, when the distance between the NAN terminals is too far, a specific service may be meaningless. Therefore, it may be indicated whether a ranging operation is required to obtain distance information between NAN terminals.
  • the indication value of the ranging flag included in the first message indicates that the ranging operation is required (S2020)
  • the first message may include information necessary for executing the ranging operation as attribute information of the ranging operation. In this case, as described above with reference to FIGS.
  • the information necessary for executing the ranging operation includes ranging resolution information, ranging interval information, and ranging indication state (S2030). At least one or more of Ranging Indication Condition information and Geo Fence Description information may be included, as described above.
  • the first message may be a publish message. Also, as an example, the first message may be a subscription message, and is not limited to the above-described embodiment.
  • the first NAN terminal and the second NAN terminal may perform the ranging operation based on the first service.
  • the ranging operation is described above. It may be performed using information necessary for executing the ranging operation.
  • the ranging operation may be performed based on the FTM procedure.
  • the first NAN terminal and the second NAN terminal may report the result value to the higher layer based on the ranging operation. That is, the first NAN terminal and the second NAN terminal may obtain the distance information between the NAN terminals through a ranging operation, as described above.
  • the first message may be used as attribute information of the ranging operation.
  • Information necessary for executing the ranging operation may not be included (S2050).
  • the ranging operation may not be necessary for a specific service. In other words, the ranging operation may be selectively performed. Therefore, the first message may not include information for executing the ranging operation, as described above.
  • 21 is a block diagram of a terminal device.
  • the terminal device may be a NAN terminal.
  • the terminal device 100 includes a transmitting module 110 for transmitting a wireless signal, a receiving module 130 for receiving a wireless signal, and a processor 120 for controlling the transmitting module 110 and the receiving module 130. can do.
  • the terminal 100 may communicate with an external device by using the transmitting module 110 and the receiving module 130.
  • the external device may be another terminal device.
  • the external device may be a base station. That is, the external device may be a device capable of communicating with the terminal device 100 and is not limited to the above-described embodiment.
  • the terminal device 100 may transmit and receive digital data such as content using the transmission module 110 and the reception module 130.
  • the terminal device 100 may exchange a beacon frame, a service discovery frame, a NAN management frame, etc. using the transmitting module 110 and the receiving module 130, but is not limited to the above-described embodiment. That is, the terminal device 100 may exchange information with an external device by performing communication by using the transmitting module 110 and the receiving module 130.
  • the processor 120 of the terminal device 100 may transmit a first message for a first service to another NAN terminal.
  • the first message may include ranging flag information indicating whether a ranging operation for the first service is necessarily performed, as described above with reference to FIGS. 10 to 18.
  • the first message may include information for executing the ranging operation as attribute information of the ranging operation.
  • the information for executing the ranging operation includes ranging resolution information, ranging interval information, ranging indication condition information, and position constraint information. At least one or more may be included.
  • the above-mentioned ranging indication state information indicates whether a result report for a ranging operation is performed based on at least one of an inner threshold and an outer threshold.
  • the information may be as described above.
  • the processor 120 may perform a ranging operation with another NAN terminal and provide a result value for the ranging operation to a higher layer, as described above.
  • Embodiments of the present invention described above may be implemented through various means.
  • embodiments of the present invention may be implemented by hardware, firmware, software, or a combination thereof.
  • a method according to embodiments of the present invention may include one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), and Programmable Logic Devices (PLDs). It may be implemented by field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, and the like.
  • ASICs Application Specific Integrated Circuits
  • DSPs Digital Signal Processors
  • DSPDs Digital Signal Processing Devices
  • PLDs Programmable Logic Devices
  • FPGAs field programmable gate arrays
  • processors controllers, microcontrollers, microprocessors, and the like.
  • the method according to the embodiments of the present invention may be implemented in the form of a module, a procedure, or a function that performs the functions or operations described above.
  • the software code may be stored in a memory unit and driven by a processor.
  • the memory unit may be located inside or outside the processor, and may exchange data with the processor by various known means.
  • the present invention as described above has been described assuming that it is applied to the NAN wireless communication system, but need not be limited thereto.
  • the present invention can be applied to various wireless systems in the same manner.

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Abstract

La présente invention concerne un procédé au moyen duquel un terminal de NAN exécute une opération de télémétrie dans un système de communication sans fil, ledit procédé pouvant consister : à transmettre, par un premier terminal de NAN, un premier message pour un premier service à un second terminal de NAN ; à recevoir un second message du second terminal de NAN ; à exécuter, par le premier terminal de NAN et le second terminal de NAN, une opération de télémétrie sur la base du premier service, des informations d'indicateur de télémétrie étant incluses dans le premier message et/ou le second message, et les informations d'indicateur de télémétrie pouvant être des informations indiquant si l'opération de télémétrie est nécessaire ou non pour fournir le premier service.
PCT/KR2016/014874 2015-12-17 2016-12-19 Procédé et dispositif au moyen desquels un terminal de nan exécute une opération de télémétrie dans un système de communication sans fil Ceased WO2017105154A1 (fr)

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US201562268522P 2015-12-17 2015-12-17
US62/268,522 2015-12-17
US201662291502P 2016-02-04 2016-02-04
US62/291,502 2016-02-04

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WO2019093791A1 (fr) * 2017-11-08 2019-05-16 엘지전자 주식회사 Procédé de mesure de distance d'équipement utilisateur dans un système de communication sans fil et équipement utilisateur le mettant en œuvre
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WO2023142089A1 (fr) * 2022-01-29 2023-08-03 北京小米移动软件有限公司 Appareil et procédé de transmission d'informations, dispositif de communication, et support de stockage
WO2023179556A1 (fr) * 2022-03-24 2023-09-28 维沃移动通信有限公司 Procédé et appareil de découverte de terminal, dispositif et support de stockage

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WO2023179556A1 (fr) * 2022-03-24 2023-09-28 维沃移动通信有限公司 Procédé et appareil de découverte de terminal, dispositif et support de stockage

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