CN107404374B - Method and device for establishing association with terminal - Google Patents
Method and device for establishing association with terminal Download PDFInfo
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- CN107404374B CN107404374B CN201710352517.0A CN201710352517A CN107404374B CN 107404374 B CN107404374 B CN 107404374B CN 201710352517 A CN201710352517 A CN 201710352517A CN 107404374 B CN107404374 B CN 107404374B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
Abstract
A method for establishing association with a terminal and an apparatus thereof are disclosed. The device associated with the terminal can support a plurality of physical layer modes by broadcasting a beacon for each physical layer mode. A terminal operating in a particular physical layer mode receives a corresponding beacon and establishes an association with the apparatus based on the received beacon.
Description
Technical Field
The technical field relates to a technology for controlling wireless data communication, and in particular, to an apparatus and method for establishing association between terminals.
Background
A terminal operating in a specific physical layer mode may not be operated by a mode other than the corresponding physical layer mode. For example, a terminal operating in a first physical layer mode may not be operated by a second physical layer mode that is not interchangeable with the first physical layer mode. The physical layer mode of the terminal may be differently made according to requirements. An Access Point (Access Point) that is to perform wireless data communication with a plurality of terminals cannot perform wireless data communication with terminals operating in other physical layer modes only when operating in a specific physical layer mode. Thereby, it is preferable that the access point supports a plurality of physical layer modes.
In korean laid-open patent No. 10-2006-0061016 (publication No. 2016, 06, 07), an arranging method using slot time interval information is disclosed. The invention discloses (a) calculating time slot interval for each media to be transmitted, and (b) allocating superframe time slot according to time slot allocation sequence determined based on delay limit of each media and time slot interval information calculated in bandwidth and (a).
Disclosure of Invention
Technical subject
One embodiment may provide an apparatus and method for establishing association with a terminal.
One embodiment may provide a coordinate device that supports multiple physical layer modes.
Technical scheme
According to one aspect, a method for establishing an association with a terminal performed via a coordinate device (coordinator device), comprises the steps of: generating a first beacon of a first physical layer mode (physical layer mode), wherein the first beacon of the first physical layer mode includes superframe duration (superframe duration) information of the first beacon of the first physical layer mode and time information capable of receiving a first beacon response to the first physical layer mode; propagating a first beacon of the first physical layer mode; generating a first beacon of a second physical layer mode, wherein the first beacon of the second physical layer mode comprises superframe duration information of the first beacon of the second physical layer mode and time information capable of receiving a first beacon response of the second physical layer mode; propagating a first beacon of the second physical layer mode; and establishing an association (association) with the terminal when receiving a response to the first beacon of the first physical layer mode or the first beacon of the second physical layer mode from the terminal.
The superframe duration of the first beacon in the first physical layer mode may display time information on a time length from a propagation start point of the first beacon in the first physical layer mode to a propagation start point of a second beacon in the first physical layer mode, which is a beacon subsequent to the first beacon in the first physical layer mode.
A superframe duration of the first beacon of the first physical layer mode may exceed a time capable of receiving the first beacon reply to the first physical layer mode.
For the superframe duration of the first beacon of the second physical layer mode, time information for a time length from a propagation start point of the first beacon of the second physical layer mode to a propagation start point of a second beacon of the second physical layer mode, which is a beacon subsequent to the first beacon of the second physical layer mode.
A time at which the first beacon response to the second physical layer mode can be received, including within a superframe duration of the first beacon to the first physical layer mode, may not overlap with a time at which the first beacon response to the first physical layer mode can be received.
The step of establishing association with the terminal may include: receiving an association request command (association request command) from the terminal operating in the first physical layer mode within a time capable of receiving a first beacon response to the first physical layer mode; and transmitting an association response command (association response command) with the terminal when receiving the association request command.
The step of establishing association with the terminal may further include: -receiving an acknowledgement (acknowledgement) of the association reply command from the terminal to establish the association.
The step of transmitting an association response command with the terminal may include: transmitting the association reply command at a predetermined time instant after a first beacon of the first physical layer mode is propagated by a second beacon of the first physical layer mode of beacons.
The first physical layer mode and the second physical layer mode may be modes that are not interchangeable with each other.
The first physical layer mode is an on-off keying (OOK) physical layer mode, and the second physical layer mode may be a Single Carrier (SC) physical layer mode.
The association establishing method can further comprise the following steps: determining a frequency at which to generate the first physical layer mode beacon and the second physical layer mode beacon based on a frequency of the response to the first physical layer mode beacon and the response to the second physical layer mode beacon.
According to another aspect, a coordinate device (coordinatodevevice) for establishing an association (association) with a terminal comprises: a processor generating a first beacon of a first physical layer mode (physical layer mode) and generating a first beacon of a second physical layer mode; and a communication unit which transmits the first beacon of the first physical layer mode and transmits the first beacon of the second physical layer mode, wherein the first beacon of the first physical layer mode includes superframe duration (superframe duration) information of the first beacon of the first physical layer mode and time information capable of receiving a response to the first beacon of the first physical layer mode, and the first beacon of the second physical layer mode includes superframe duration information of the first beacon of the second physical layer mode and time information capable of receiving a response to the first beacon of the second physical layer mode, and the processor establishes association with a terminal when receiving a response to the first beacon of the first physical layer mode or the first beacon of the second physical layer mode from the terminal.
The superframe duration of the first beacon in the first physical layer mode may display time information on a time length from a propagation start point of the first beacon in the first physical layer mode to a propagation start point of a second beacon in the first physical layer mode, which is a beacon subsequent to the first beacon in the first physical layer mode.
A superframe duration of the first beacon of the first physical layer mode may exceed a time capable of receiving the first beacon reply to the first physical layer mode.
A time at which the first beacon response to the second physical layer mode can be received, including within a superframe duration of the first beacon to the first physical layer mode, may not overlap with a time at which the first beacon response to the first physical layer mode can be received.
The communication unit receives an association request command (association request command) from the terminal operating in the first physical layer mode within a time period in which a first beacon response to the first physical layer mode can be received, and transmits an association response command (association response command) with the terminal when receiving the association request command.
The communication unit may transmit the association response command at a predetermined time instant after a first beacon of the first physical layer mode is propagated by a second beacon of the first physical layer mode.
Technical effects
An apparatus and method for establishing association with a terminal are provided.
A coordinate device supporting a plurality of physical layer modes is provided.
Drawings
Fig. 1 is a block diagram illustrating a data exchange system according to one example.
FIG. 2 is a block diagram illustrating a coordinate device according to one embodiment.
Fig. 3 is a flow chart illustrating a terminal association method according to one embodiment.
FIG. 4 is a flow chart illustrating a method of establishing an association, according to one example.
Fig. 5 is a diagram illustrating a timeline for propagating beacons for multiple physical layer modes, according to an example.
Fig. 6 is a time axis illustrating a method of establishing association between a coordinate device and a terminal according to an example.
Fig. 7 is a flow diagram illustrating a method of determining a frequency of generating a beacon of a first physical layer mode and a beacon of a second physical layer mode, according to one example.
Detailed Description
Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the scope of the patent application is not limited or restricted to these examples. Like reference symbols in the various drawings indicate like elements.
In the embodiments described below, various modifications may be added. It should be understood that the examples described below are not intended to limit the embodiments, but include all modifications, equivalents, and alternatives thereto.
The terms used in the present specification are used only for describing specific embodiments, and therefore are not intended to limit the embodiments. Singular references include plural references, unless expressly specified in context. In the present specification, terms such as "including" or "having" are to be understood as specifying the presence of the features, numerals, steps, operations, constituent elements, components, or combinations thereof described in the specification, and not excluding the presence or possibility of one or more other features, or numerals, steps, operations, constituent elements, components, or combinations thereof in advance.
Unless defined otherwise, all terms used herein including technical and scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Generally, terms used in advance are to be interpreted as having meanings equivalent to those of the related art, and cannot be interpreted as having ideal or excessive meanings unless explicitly defined in the specification.
In the description with reference to the drawings, the same components are denoted by the same reference numerals regardless of the reference numerals in the drawings, and redundant description thereof will be omitted. In describing the embodiments, detailed descriptions of the related known techniques may be omitted when it is judged that the detailed descriptions are unnecessary to obscure the essence of the embodiments.
Fig. 1 is a block diagram illustrating a data exchange system according to one example.
The data exchange system 100 includes a first terminal 110 and a second terminal 120. When the first terminal 110 and the second terminal 120 are in a state of being able to exchange data, it is defined that the first terminal 110 and the second terminal 120 form a peer-to-peer network (pair). The first terminal 110 and the second terminal 120 may exchange data through wireless communication. For example, the wireless communication may be a short-range wireless communication. In order to form a peer-to-peer network between the first terminal 110 and the second terminal 120, when the first terminal 110 propagates the beacon (beacon), the first terminal 110 may be named as a coordinate device (coordinator) or a coordinator (coordinator).
When the first terminal 110 propagates the beacon, the second terminal 120, which receives the beacon, may request association establishment from the first terminal 110. The first terminal 110 and the second terminal 120 can form a network-to-network by establishing an association. The state of establishing the association between the first terminal 110 and the second terminal 120 may be named an associated step (associated phase).
The method of establishing an association between terminals will be described in detail below with reference to fig. 2 to 7.
FIG. 2 is a block diagram illustrating a coordinate device according to one embodiment.
The coordinate device 200 includes a communication unit 210, a processor 220, and a memory 230. The coordinate device 200 may correspond to the first terminal 110 described with reference to fig. 1. For example, the communication unit 210, the processor 220, and the memory 230 may be embodied by a System-On-Chip (SOC), but are not limited to the described embodiment.
The communication unit 210 is connected to the processor 220 and the memory 230, and receives and transmits data. The communication unit 210 can be connected to other external devices for receiving and transmitting data.
The communication unit 210 may be embodied by a circuit diagram (circuit) within the coordinate device 200. For example, the communication unit 210 may include an internal bus (internal bus) and an external bus (external bus). As other examples, the communication unit 210 may be an element connecting the coordinate device 200 and an external device. The communication unit 210 may be an interface (interface). The communication unit 210 receives data from an external device, and may transfer the data to the processor 220 and the memory 230.
The processor 220 processes data received by the communication unit 210 and data stored in the memory 230. A "processor" may be a data processing apparatus embodied in hardware as circuitry having a physical structure for performing desired operations (desired operations). For example, the required operations may include codes or instructions (instructions) included in a program. For example, a data processing device embodied in hardware may include a microprocessor (micro processor), a central processing unit (central processing unit), a processor core (processor core), a multi-core processor (multi-core processor), a multiprocessor (multi-processor), an Application-specific integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA).
The processor 220 executes instructions stored in a memory (e.g., memory 230), induced by computer readable code (e.g., software) and by the processor 220.
The processor 230 stores data received by the communication unit 210 and data processed by the processor 220. For example, the memory 230 may store programs. The stored program may be a set of syntaxes (syntax) encoded to be executable by the processor 220 that can establish an association with the terminal.
According to one aspect, the Memory 230 may include one or more of volatile Memory, non-volatile Memory, Random Access Memory (RAM), flash Memory, hard disk drive, and optical disk drive.
The processor 230 stores a set of instructions (e.g., software) that run the coordinate device 200. The set of instructions for operating coordinate device 200 is executed by processor 220.
The communication unit 210, the processor 220, and the memory 230 will be described in detail below with reference to fig. 3 to 7.
Fig. 3 is a flow chart illustrating a terminal association method according to one embodiment.
Referring to fig. 2, the following steps 310 to 350 are performed by the coordinate apparatus 200 described above.
At step 310, the processor 220 generates a first beacon of a first physical layer mode (physical layer mode). The coordinate device 200 may support multiple physical layer modes. The multiple physical layer modes may not be interchangeable. For example, the plurality of physical layer modes may include an on-off keying (OOK) physical layer mode and a Single Carrier (SC) physical layer mode.
A first beacon of the first physical layer mode may be received by a terminal operating in the first physical layer mode. That is, the terminal operating in the first physical layer mode receives the first beacon of the first physical layer mode, and may obtain information included in the received first beacon.
For example, the first beacon may include a pair network synchronization parameter (pair synchronization parameter), an information element (information element), and a Frame Check code Sequence (FCS). The frame structure of the first beacon is as follows in table 1. Additional information may be added to the frame structure of table 1 as needed. For example, when the first beacon is encrypted, information for decoding the first beacon may be added to the first beacon
[ TABLE 1 ]
| Byte: 15 | Variables of | … | Variables of | 4 |
| Network-to-network synchronization parameter | Information element-1 | Information element-n | Frame check code sequence |
The network synchronization parameters may include one or more of a Number of associated slots (Number of associated slots), a Duration of an associated Slot (Duration of an Association Slot), a Superframe Duration (Superframe Duration), an Association end period (Association time period) (ATP), a next device identifier (DEVID), a network mode (network mode), an expected Received Signal Strength Indicator (RSSI), and a network coordinator (PRC) address (address). The following table 2 is used to describe the structure of the network synchronization parameter in detail.
[ TABLE 2 ]
The first beacon of the first physical layer mode may include superframe duration (superframe duration) information for the first beacon of the first physical layer mode. For example, the superframe duration may display the set time for the corresponding beacon. As another example, the superframe duration may display time information for a time length from a propagation start point of a first beacon of the first physical layer mode to a propagation start point of a second beacon of the first physical layer mode, which is a beacon after the first beacon of the first physical layer mode. The time information of the second beacon propagation may be a time interval (time interval) between the first beacon and the second beacon. The superframe duration is described in detail below with reference to fig. 5.
The first beacon of the first physical layer mode may include time information capable of receiving a first beacon reply to the first physical layer mode. The time information of the response can be received, and the time of the access slot (access slot) can be displayed. The access slot may be multiple. The term "associated slot" and the term "access slot" may be interpreted to have the same meaning. The access slot will be described in detail below with reference to fig. 5.
For example, the superframe duration of the first beacon for the first physical layer mode may exceed the time at which the first beacon reply for the first physical layer mode can be received. The time for which the response can be received may be a multiplication value of the Number of associated Slots (Number of Association Slots) and the Duration of the associated Slots (Duration of Association Slots). As other examples, the superframe duration of the first beacon of the first physical layer mode may exceed the time and short interframe Space (SIFS) at which the first beacon response of the first physical layer mode can be received.
At step 320, the communication unit 210 propagates a first beacon in a first physical layer mode. For example, a first beacon of a first physical layer mode may propagate to the periphery of the coordinate device 200. A terminal operating in a first physical layer mode may interpret a first beacon in the first physical layer mode.
At step 330, the processor 220 generates a first beacon of the second physical layer mode. The second physical layer mode may be a mode different from the first physical layer mode. For example, when the first physical layer mode is the on-off keying physical layer mode, the second physical layer mode may be the single carrier physical layer mode.
The first beacon of the second physical layer mode can be interpreted by the terminal operating in the second physical layer mode. That is, the terminal operating in the second physical layer mode receives the first beacon of the second physical layer mode, and can obtain information included in the received beacon.
The first beacon of the second physical layer mode may include a superframe duration to the first beacon of the second physical layer mode. For example, the superframe duration may display the set time for the corresponding beacon. As another example, the superframe duration may display time information of a second beacon of the second physical layer mode until a point at which the second beacon of the second physical layer mode is propagated next to the first beacon of the second physical layer mode.
The first beacon of the second physical layer mode may include time information capable of receiving a reply to the first beacon of the second physical layer mode. The superframe duration of the first beacon for the second physical layer mode may overlap with the superframe duration of the first beacon for the first physical layer mode, but the time at which the first beacon response for the second physical layer mode can be received may not overlap with the time at which the first beacon response for the first physical layer mode can be received. In other words, the time at which the first beacon reply to the second physical layer mode can be received, including within the superframe duration of the first beacon to the first physical layer mode, may not overlap with the time at which the first beacon reply to the first physical layer mode can be received. The relationship between the time when the first beacon response to the second physical layer mode can be received and the time when the first beacon response to the first physical layer mode can be received will be described in detail with reference to fig. 5 below.
For example, the superframe duration of the first beacon for the second physical layer mode may exceed the time at which the first beacon reply for the second physical layer mode can be received. As another example, the superframe duration for the first beacon of the second physical layer mode may exceed the sum of the time to be able to receive the first beacon reply of the second physical layer mode and the short inter-frame spacing SIFS.
After step 320 is performed, step 330 is shown and described as being performed, but step 330 may be performed before step 320 is performed.
At step 340, the communication unit 210 propagates the first beacon of the second physical layer mode. For example, a first beacon of the second physical layer mode may propagate to the periphery of the coordinate device 200. The terminal operating in the second physical layer mode may interpret the first beacon in the second physical layer mode.
In step 350, the communication unit 210 receives a response to the beacon from the terminal receiving the first beacon of the first physical layer mode or the terminal receiving the first beacon of the second physical layer mode. The processor 220 establishes an association with the terminal based on the response received from the terminal. The method of establishing association with the terminal is described in detail below with reference to fig. 4 and 6.
When an association is established between the coordinate apparatus 200 and the terminal, data can be exchanged between the coordinate apparatus 200 and the terminal.
FIG. 4 is a flow chart illustrating a method of establishing an association, according to one example.
Referring to fig. 3, the step 350 includes the following steps 410 to 430.
In step 410, the communication unit 210 receives an association request command (association request command) from a terminal that receives the first beacon of the first physical layer mode or the first beacon of the second physical layer mode. For example, the communication unit 210 receives an association request command from a terminal operating in the first physical layer mode within a time when it is able to receive a first beacon response to the first physical layer mode.
The terminal may identify more than one access slot based on being able to receive the time information included in the beacon response. The terminal determines one of the identified access slots, and may transmit an association request command to the coordinate device 200 at the determined access slot.
In step 420, the communication unit 210 transmits an association response command (association response command) to the terminal. For example, the communication unit 210 may transmit the association response command to the terminal at a predetermined time when the first beacon of the first physical layer mode is propagated and the second beacon of the first physical layer mode next to the first beacon of the first physical layer mode.
In step 430, the communication unit 210 receives an acknowledgement (acknowledge) to the association response command from the terminal. The processor 220 may establish an association with the terminal upon receiving an acknowledgement of the association response command.
According to one embodiment, when an association is established between the coordinate device 200 and the terminal, the coordinate device 200 may not propagate the beacon until the association is finished. For example, the coordinate device 200 may not establish an association with multiple terminals simultaneously. That is, the coordinate device 200 performs one-to-one data communication with the terminal that establishes the association.
Fig. 5 is a diagram illustrating a timeline for propagating beacons for multiple physical layer modes, according to an example.
Referring to fig. 2 to 4, the coordinate apparatus 200 may support a plurality of physical layer modes. For example, the coordinate device 200 may generate a beacon in the first physical layer mode and a beacon in the second physical layer mode, and may propagate the generated beacons. According to one embodiment, the coordinate device 200 may alternately propagate the beacon of the first physical layer mode and the beacon of the second physical layer mode.
Considering only the first physical layer mode, when the superframe 512 of the first beacon 510 of the first physical layer mode is ended, the superframe of the second beacon 520 of the first physical layer mode is started. Similarly, considering only the second physical layer mode, when the superframe 542 of the first beacon 540 of the second physical layer mode is ended, the superframe of the second beacon 550 of the second physical layer mode is started. On the side of each physical layer mode, the superframe durations of the beacons of the respective physical layer modes may not overlap, but the superframe durations of the beacons of the physical layer modes, which are different from each other, may partially overlap.
The duration of the superframe 512 of the first beacon 510 of the first physical layer mode may include a first duration 513 and a second duration 514. The first duration 513 includes more than one access slot that receives an acknowledgement to the first beacon 510 from a terminal operating in the first physical layer mode, and the second duration 514 may be cleared.
The duration of the superframe 542 of the first beacon 540 of the second physical layer mode may include a third duration 543 and a fourth duration 544. The third duration 543 includes more than one access slot for receiving acknowledgements for the first beacon 540 from terminals operating in the second physical layer mode, and the fourth duration 544 can be cleared.
The second duration 514 and the third duration 543 may be the same time. The second duration 514 for the first physical layer mode is cleared so that a terminal operating in the first physical layer mode may transmit data to the coordinate device 200 during this duration. During a third duration 543, which is the same time as the second duration 514, the coordinate device 200 may receive a reply to the first beacon 540 from a terminal operating in the second physical layer mode. By overlapping a part of the superframe duration of beacons in which different physical layer modes are set, collisions between transmissions of terminals operating in different physical layer modes can be prevented, and access slots can be effectively used.
Fig. 6 is a time axis illustrating a method of establishing association between a coordinate device and a terminal according to an example.
A timeline 600 for operating a network coordinator (PRC) 602 includes a network setup period (PSP) 610 and a network assisted period (PAP) 650. The PAP650 may be an associated phase. Referring to fig. 2 to 5, the PRC602 corresponds to the coordinate device 200 described above. The PRC602 may establish an association with a peer-to-peer device (PRDEV) 604. Referring to fig. 3 to 5, the network connection device 604 corresponds to the terminal described above.
The PSP610 may be a period during which the PRC602 broadcasts beacons 612, 614, 616, the PRC602 receives a response 615 from the terminal to the beacon, and the PRC602 and the PRDEV604 establish an association. The PAP650 may be the period of time during which the PRC602 and PRDEV604 are associated. Within the PAP650, the PRC602 and PRDEV604 may exchange data. The PRC602 or the PRDEV604 transmits a separation request command (separation request command)630 to the counterpart, and may receive the PAP 650.
Within the PSP610, the PRC602 may transmit second physical layer beacons 612 and 616, and may transmit a first physical layer beacon 614. The PRC602 may receive an association request command 615 from the PRDEV604 receiving the first physical layer beacon 614. In the case of receiving the association request command 615 from the PRDEV604, the second physical layer beacon 616 may also be propagated at a predetermined time. At the time the superframe of the second physical layer beacon 612 ends, a beacon 616 may be propagated. The PRC602 may transmit an association reply command 620 to the PRDEV604 at a predetermined time to propagate the next physical layer beacon of the first physical layer beacon 614. The PRC602 may establish an association between the PRC602 and the PRDEV604 when receiving an acknowledgement ACK621 to the association response command 620 from the PRDEV 604.
Fig. 7 is a flow diagram illustrating a method of determining a frequency of generating a beacon of a first physical layer mode and a beacon of a second physical layer mode, according to one example.
Before the above-mentioned step 310 is performed with reference to fig. 3, the following step 710 may be performed.
In step 710, the processor 220 determines a frequency of generating the first physical layer mode beacon and the second physical layer mode beacon based on the terminals around the coordinate device 200.
When the number of terminals operating in the first physical layer mode is greater than the number of terminals operating in the second physical layer mode around the coordinate device 200, the beacon in the first physical layer mode may be transmitted more frequently than the beacon in the second physical layer mode. The number of terminals around the coordinate device 200 can be determined based on the number of responses to the beacon transmitted from the coordinate device 200. When the beacon response to the first physical layer mode is more than the beacon response to the second physical layer mode, it may be determined that the number of terminals operating in the first physical layer mode is greater than the number of terminals operating in the second physical layer mode.
For example, when the ratio of the beacon of the first physical layer mode to the beacon of the second physical layer mode is determined to be 2:1, the beacon of the first physical layer mode may be propagated one beacon of the second physical layer mode after being propagated two consecutive times.
For example, the illustrated devices and components may be embodied using a processor, a controller, an arithmetic logic unit A L U (iterative logic unit), a digital signal processor (digital signal processor), a microcomputer, a field programmable array FPA (field programmable array), a programmable logic unit P L U (programmable logic unit), a microprocessor, or any other device, computer, or special purpose computer that executes instructions (instructions).
Methods according to embodiments may be recorded in computer-readable media in the form of executable program instructions by various computer means. Computer-readable media may include program instructions, data files, data structures, etc., alone or in combination. The media and program instructions may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well known and used by those having skill in the computer software arts. Examples of computer readable media include: magnetic media (magnetic media) such as hard disks, floppy disks, and magnetic tape; optical media (optical media) such as CD ROM, DVD; magneto-optical media (magnetic-optical media) such as optical discs (flopticaldisk); and hardware devices that are specially configured to store and execute program instructions, such as Read Only Memory (ROM), Random Access Memory (RAM), and so forth. Examples of the program instructions include both machine code, such as produced by a compiler, and high-level language code that may be executed by the computer using an interpreter. To perform the operations of an embodiment, the hardware device may be configured to operate with more than one software module, and vice versa.
As indicated above, the present invention, although illustrated by the sheath drawings of the defined embodiments, is not limited to the described embodiments and various modifications and alterations from these devices may be made by those skilled in the art. For example, components such as a system, a structure, a device, and a circuit, which are described and/or executed in a different order from the described method, may be combined or combined with a different method, or may be replaced or substituted with other components or equivalents to achieve a suitable result.
Description of the symbols
200: coordinate terminal
210: communication unit
220: processor with a memory having a plurality of memory cells
230: memory device
Claims (17)
1. An association establishing method with a terminal, performed via a coordinate device, comprising the steps of:
generating a first beacon of a first physical layer mode, wherein the first beacon of the first physical layer mode comprises superframe duration information of the first beacon of the first physical layer mode and time information capable of receiving a first beacon response of the first physical layer mode;
propagating a first beacon of the first physical layer mode;
generating a first beacon of a second physical layer mode, wherein the first beacon of the second physical layer mode comprises superframe duration information of the first beacon of the second physical layer mode and time information capable of receiving a first beacon response of the second physical layer mode;
propagating a first beacon of the second physical layer mode; and
establishing an association with a terminal when receiving a response to the first beacon of the first physical layer mode or the first beacon of the second physical layer mode from the terminal.
2. The association establishing method according to claim 1, wherein time information on a time length from a propagation start point of the first beacon in the first physical layer mode to a propagation start point of a second beacon in the first physical layer mode, which is a beacon subsequent to the first beacon in the first physical layer mode, is displayed for a superframe duration of the first beacon in the first physical layer mode.
3. The association establishing method according to claim 1, wherein a superframe duration of the first beacon of the first physical layer mode exceeds a time at which the first beacon response to the first physical layer mode can be received.
4. The association establishing method according to claim 1, wherein time information on a time length from a propagation start point of the first beacon in the second physical layer mode to a propagation start point of a second beacon in the second physical layer mode, which is a beacon subsequent to the first beacon in the second physical layer mode, is displayed for a superframe duration of the first beacon in the second physical layer mode.
5. The association establishment method according to claim 1, wherein a time at which the first beacon reply to the second physical layer mode can be received is included within a superframe duration of the first beacon to the first physical layer mode and does not overlap with a time at which the first beacon reply to the first physical layer mode can be received.
6. The association establishing method according to claim 1, wherein the step of establishing an association with the terminal comprises:
receiving an association request command from the terminal operating in the first physical layer mode within a time capable of receiving a first beacon response to the first physical layer mode; and
and transmitting a correlation response command by the terminal when receiving the correlation request command.
7. The association establishing method according to claim 6, wherein the step of establishing an association with the terminal further comprises:
receiving an acknowledgement of the association response command from the terminal to establish the association.
8. The association establishing method according to claim 6, wherein the step of transmitting an association response command with the terminal comprises:
transmitting the association reply command at a predetermined time instant after a first beacon of the first physical layer mode is propagated by a second beacon of the first physical layer mode of beacons.
9. The association establishing method according to claim 1, wherein the first physical layer mode and the second physical layer mode are mutually non-interchangeable modes.
10. The association establishing method as claimed in claim 1, wherein the first physical layer mode is an on-off keying physical layer mode, and
the second physical layer mode is a single carrier physical layer mode.
11. The association establishing method according to claim 1, further comprising the steps of:
determining a frequency at which to generate the first physical layer mode beacon and the second physical layer mode beacon based on a frequency of the response to the first physical layer mode beacon and the response to the second physical layer mode beacon.
12. A coordinate device for establishing an association with a terminal, comprising:
a processor generating a first beacon of a first physical layer mode and generating a first beacon of a second physical layer mode; and
a communication unit that propagates the first beacon of the first physical layer mode and propagates the first beacon of the second physical layer mode, and
a first beacon of the first physical layer mode including superframe duration information for the first beacon of the first physical layer mode and time information capable of receiving a first beacon response to the first physical layer mode, and
the first beacon of the second physical layer mode includes superframe duration information for the first beacon of the second physical layer mode and time information capable of receiving a reply to the first beacon of the second physical layer mode, and
the processor establishes an association with a terminal when receiving a response to the first beacon of the first physical layer mode or the first beacon of the second physical layer mode from the terminal.
13. The coordinate device of claim 12, wherein time information is displayed for a time length from a propagation start point of a first beacon in the first physical layer mode to a propagation start point of a second beacon in the first physical layer mode, which is a beacon subsequent to the first beacon in the first physical layer mode, for a superframe duration of the first beacon in the first physical layer mode.
14. The coordinate device of claim 12, wherein a superframe duration of the first beacon of the first physical layer mode exceeds a time at which the first beacon reply to the first physical layer mode can be received.
15. The coordinate device of claim 12, wherein the time at which the first beacon reply to the second physical layer mode can be received comprises a time within a superframe duration of the first beacon to the first physical layer mode that does not overlap with a time at which the first beacon reply to the first physical layer mode can be received.
16. The coordinate device of claim 12, wherein the communication unit receives an association request command from the terminal operating in the first physical layer mode within a time capable of receiving a first beacon response to the first physical layer mode, and
and transmitting a correlation response command by the terminal when receiving the correlation request command.
17. The coordinate device of claim 16, wherein the communication unit transmits the association reply command at a predetermined time instant after a first beacon of the first physical layer mode is propagated by a second beacon of the first physical layer mode.
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| KR10-2016-0061095 | 2016-05-18 | ||
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| KR1020170044559A KR102322059B1 (en) | 2016-05-18 | 2017-04-06 | Method and apparatus for establising association with terminal |
| KR10-2017-0044559 | 2017-04-06 |
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