WO2010082773A2 - 중앙 집중형 네트워크에서 자원 예약 방법 - Google Patents
중앙 집중형 네트워크에서 자원 예약 방법 Download PDFInfo
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- WO2010082773A2 WO2010082773A2 PCT/KR2010/000245 KR2010000245W WO2010082773A2 WO 2010082773 A2 WO2010082773 A2 WO 2010082773A2 KR 2010000245 W KR2010000245 W KR 2010000245W WO 2010082773 A2 WO2010082773 A2 WO 2010082773A2
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- 238000005259 measurement Methods 0.000 claims description 27
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- 238000013468 resource allocation Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 7
- 238000007726 management method Methods 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/26—Resource reservation
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- the present invention relates to a resource reservation method for effectively using resources in a centralized network, and more particularly, to a resource reservation method between a master device and a slave device or between slave devices.
- a master device that efficiently controls the entire network from the center of the network, such as a base station or an access point.
- a centralized control device such as a master device attempts to initially access the network, and allocates resources such as a time slot or a frequency flot to its own judgment by identifying the situation of other devices in the network. In this case, effective resource allocation is difficult because the state of the communication link between slave devices cannot be accurately determined.
- the first slave device requests the master device communication channel between slave devices through the communication channel with the master device, and the master device Allocates a communication resource to the second slave device through a communication channel with the slave device.
- the master device cannot accurately grasp the state of the communication link between the slave devices, and thus effective resource allocation is difficult.
- An object of the present invention is to provide an effective resource reservation method between a master device and a slave device in a centralized network.
- Another object of the present invention is to provide an effective resource reservation method through link measurement between slave devices in a centralized network.
- an embodiment of a resource reservation method in a master device in the centralized network including a master device and a slave device, the master device is the reservation target and the slave device is A resource reservation method in a master device in the case of a reservation subject, the method comprising: receiving a resource reservation request from the slave device; Sending a resource reservation response to the slave device; And including the information about the resource reservation in the beacon.
- an embodiment of a resource reservation method in a slave device in the centralized network including a master device and a slave device, the master device is the reservation target and the slave device is A resource reservation method in a slave device in the case of a reservation subject, the method comprising: scanning resources; Sending a resource reservation request to the master device; Receiving a resource reservation response from the master device.
- an embodiment of a resource reservation method in a master device in the centralized network including a master device and a slave device, the master device is the reservation subject and the slave device is A resource reservation method in the master device when the reservation target, comprising: transmitting a resource reservation request to the slave device; Receiving a resource reservation response from the slave device; And including the information about the resource reservation in the beacon.
- an embodiment of the resource reservation method in a slave device in the centralized network including a master device and a slave device, the master device is the reservation subject and the slave device is A resource reservation method in the slave device when a reservation target is provided, the method comprising: receiving a resource reservation request from the master device; And transmitting a resource reservation response to the master device.
- a resource reservation method comprising: receiving a slot request from a first slave device that is a reservation agent; Allocating a slot to the reservation agent; And informing the network of a reservation negotiation between the reservation subject and the second slave device to be reserved.
- an embodiment of a resource reservation method in a slave device is a resource reservation in a first slave device which is a reservation agent in a centralized network including a master device and slave devices.
- a method comprising: performing a link measurement between the first slave device and a second slave device to be reserved; Transmitting a resource reservation request to the second slave device; Receiving a resource reservation response from the second slave device; And listening to resource reservation from the master device.
- an embodiment of a resource reservation method in a slave device is a resource reservation method in a second slave device to be reserved in a centralized network including a master device and slave devices.
- a method comprising: receiving a survey command frame for link measurement from a first slave device, the reservation subject; Sending a survey command frame to the first slave device that includes information elements for reporting the link measurement; Receiving a resource reservation request from the first slave device; Sending a resource reservation response to the first slave device; And listening to resource reservation from the master device.
- resource reservation between the master device and the slave device can be effectively performed.
- FIG. 1 is a view briefly showing an example of a centralized network to which the present invention is applied;
- FIGS. 2 and 3 are diagrams illustrating an example of a resource reservation method between a master device and a slave device in a centralized network according to the present invention
- FIG. 4 is a diagram illustrating an example of a resource reservation method between slave devices in a centralized network according to the present invention
- FIG. 5 is a diagram illustrating another example of a resource reservation method between slave devices in a centralized network according to the present invention.
- an embodiment of a resource reservation method in a master device in the centralized network including a master device and a slave device, the master device is the reservation target and the slave device is A resource reservation method in a master device in the case of a reservation subject, the method comprising: receiving a resource reservation request from the slave device; Sending a resource reservation response to the slave device; And including the information about the resource reservation in the beacon.
- an embodiment of a resource reservation method in a slave device in the centralized network including a master device and a slave device, the master device is the reservation target and the slave device is A resource reservation method in a slave device in the case of a reservation subject, the method comprising: scanning resources; Sending a resource reservation request to the master device; Receiving a resource reservation response from the master device.
- an embodiment of a resource reservation method in a master device in the centralized network including a master device and a slave device, the master device is the reservation subject and the slave device is A resource reservation method in the master device when the reservation target, comprising: transmitting a resource reservation request to the slave device; Receiving a resource reservation response from the slave device; And including the information about the resource reservation in the beacon.
- an embodiment of a resource reservation method in a slave device is a master device and a slave device in a centralized network including a slave device and A resource reservation method in the slave device when a reservation target is provided, the method comprising: receiving a resource reservation request from the master device; And transmitting a resource reservation response to the master device.
- a resource reservation method comprising: receiving a slot request from a first slave device that is a reservation agent; Allocating a slot to the reservation agent; And informing the network of a reservation negotiation between the reservation subject and the second slave device to be reserved.
- an embodiment of a resource reservation method in a slave device is a resource reservation in a first slave device which is a reservation agent in a centralized network including a master device and slave devices.
- a method comprising: performing a link measurement between the first slave device and a second slave device to be reserved; Transmitting a resource reservation request to the second slave device; Receiving a resource reservation response from the second slave device; And listening to resource reservation from the master device.
- an embodiment of a resource reservation method in a slave device is a resource reservation method in a second slave device to be reserved in a centralized network including a master device and slave devices.
- a method comprising: receiving a survey command frame for link measurement from a first slave device, the reservation subject; Sending a survey command frame to the first slave device that includes information elements for reporting the link measurement; Receiving a resource reservation request from the first slave device; Sending a resource reservation response to the first slave device; And listening to resource reservation from the master device.
- FIG. 1 is a diagram briefly illustrating an example of a centralized network to which the present invention is applied.
- a centralized network includes a master device 100 and a plurality of slave devices 110, 120, and 130.
- the master device 100 refers to a centralized control device that efficiently controls the entire network from the center of the network, such as a base station or an access point (AP) in a centralized control type network.
- An example of communication resources may be a time slot in the case of a TDMA system, and a sub-channel, which is a bundle of subcarriers, in the case of an OFDMA system.
- Resource reservation is performed to set a communication channel between the master device 100 and the slave devices 110, 120, and 130, or a communication channel between the slave devices 110, 120, and 130.
- a device requesting a resource reservation is called a reservation owner, and a device that is a resource reservation target is called a reservation target.
- reservation refers to a device that reserves one or more medium access slots (MASs) having priority access to a medium in a superframe, and the superframe is a frame between devices.
- MASs medium access slots
- FIG. 2 illustrates a resource reservation method when a master device is a reservation target and a slave device is a reservation owner among resource reservation methods between a master device and a slave device in a centralized network according to the present invention.
- the nonbeaconing slave device 210 scans whether the requested resource is reserved by other devices (S250). For example, the slave device 210 requests a channel reservation protocol (CRP) reservation to confirm that media access slots (MAS), which is a kind of resource, are not reserved by other devices (not shown). At least mMaxLostBeacons + 1 superframes are scanned before transmitting the CRP Reservation Request Command Frames (S250).
- CRP channel reservation protocol
- mMaxLostBeacons + 1 superframes are scanned before transmitting the CRP Reservation Request Command Frames (S250).
- mMaxLostBeacons means the maximum number of superframes allowed even if devices do not listen to the beacon interval in the network.
- the slave device 210 requests resource reservation from the master device 200 (S255).
- the slave device 210 may request resource reservation through a separate slot allocated for signal exchange between the master and the slaves before the resource is allocated.
- the slave device 210 transmits a channel reservation protocol (CRP) reservation request command frame to the master device 200 in a RSW slot (S255).
- CRP channel reservation protocol
- RSW means a time window used to exchange control or management information in a reservation-based method
- CRP is a protocol supporting negotiation and management of channel time reservation.
- the master device 200 Upon receiving the resource reservation request, the master device 200 transmits a resource reservation response message to the slave device 210 for reservation negotiation (S260).
- a resource reservation response message to the slave device 210 for reservation negotiation (S260).
- the master device 200 receives a CRP reservation request command frame as a resource reservation request
- the master device 200 returns a CRP reservation response command frame in the RSW slot or negotiates the next superframe to negotiate a reservation.
- IE CRP Information Element
- the master device 200 then completes the reservation negotiation by including the appropriate CRP Information Element (IE) (ie, information on reservation negotiation) in the beacon (S265).
- IE CRP Information Element
- the slave device 210 When a reservation is established between the master device 200 and the slave device 210, the slave device 210 regularly sends an echo beacon or sends itself a regular beaconing device to notify the reservation. device) (S270).
- the slave device 210 transmits a beaconing promotion request command frame to the master diabis 200.
- the master device 200 transmits the beaconing promotion instruction IE in the beacon together with the address of the slave device 210 promoted to the beaconing device.
- the master device 200 may start the beaconing promotion by sending a beaconing promotion instruction IE with the addresses of the devices promoted to the regular beaconing slave device.
- the slave device 210 that receives the beaconing lift instruction IE from the master device 200 joins in a beacon period.
- FIG. 3 is a diagram illustrating a resource reservation method when a master device is a reservation owner and a slave device is a reservation target among resource reservation methods between a master device and a slave device according to the present invention.
- the master device 300 starts a resource reservation request such as a channel by transmitting a resource reservation request message to the slave device 310 (S350).
- a resource reservation request such as a channel by transmitting a resource reservation request message to the slave device 310 (S350).
- the master device 300 initiates a channel reservation request by including a CRP request command frame in a CRP IE or RSW slot in a beacon.
- the slave device 310 When the slave device 310 receives the resource reservation request from the master device 300, the slave device 310 transmits a resource reservation response message to the master device for resource reservation negotiation (S355).
- the slave device 310 receives the CRP IE in the beacon from the master device 300, the slave device 310 responds with a reservation response command frame in the RSW slot. If the slave device 310 receives a CRP request command frame in an RSW slot, the slave device 310 responds with a CRP reservation response command frame in the same or another RSW slot.
- the master device 300 completes the negotiation by including the appropriate CRP IE related to the reservation negotiation in the beacon (S360).
- the slave device 310 When a reservation is made between the master device 300 and the slave device 310, the slave device 310 regularly sends an echo beacon or sends itself a regular beaconing device to notify the reservation. device).
- the non-kerning lift process is the same as the process described with reference to FIG. 2, and thus a detailed description thereof will be omitted.
- FIG. 4 is a diagram illustrating an example of a resource reservation method between slave devices in a centralized network according to the present invention.
- the slave device 410 which is a reservation subject, requests a separate slot for exchanging control information before receiving a resource from the master device 400.
- the slave device 410 transmits an RSW slot request in a contention signaling window (CSW) to exchange control information (S255).
- CSW means a time window for exchanging control or management information in the slotted Aloha-based method.
- RSW slot request points to the reservation target of the CRA (ie, another slave device).
- the master device 400 allocates slots to the slave device 410 so that the slave device 410 can perform link measurement with the reservation target 420 (S260). For example, when the slave device 410 makes an RSW slot request, the master device allocates RSW slots (S260). If the slots are allocated for link measurement, the reservation agent 410 transmits a probe command frame without information elements to the reservation target 420 to request link measurement (S454). After the link measurement, the reservation target 420 reports the measurement result (S456). As an example of the measurement report method, the reservation target 420 responds with a probe command frame having a Link Feedback IE or a Link Quality Estimate IE (S456).
- S456 Link Feedback IE
- the slave device 410 which is a reservation subject, transmits a resource reservation request to the reservation target 420 (S458).
- the CRP reservation request command frame may be transmitted as a resource reservation request.
- the reservation target responds to the resource reservation (S460).
- a CRP reservation response frame may be transmitted.
- the master device 400 includes the reservation subject 410 and information elements (eg, CRP IEs) indicating the reservation target 420 in the beacon (S462), thereby providing two slave devices 410, 420.
- Resource reservation for example, CRP reservation
- the slave devices 410 and 420 After receiving the resource reservation (eg, CRP reservation) notification from the master device 400, the slave devices 410 and 420 perform data communication with each other (S468). If the reservation negotiation between the slave devices 410 and 420 fails or the reservation notification is not heard from the master device 400, the slave devices 410 and 420 may start negotiation again after a certain period of time, for example, mCRPslaveRetry superframes.
- the resource reservation eg, CRP reservation
- both slave devices 410 and 420 regularly transmit echo beacons or promote themselves to regular beaconing devices in order to announce this reservation ( S470, S472).
- the slave device 410 or 420 sends a beaconing promotion request command frame to the master diabis 400.
- the master device 400 transmits a beaconing promotion instruction IE in a beacon together with the addresses of slave devices 410 or 420 promoted to the beaconing device.
- the master device 400 may begin beaconing promotion by sending a beaconing promotion indication IE with the address of the devices 410 or 420 promoted to a regular beaconing slave device. Slave devices 410 or 420 that have received the beaconing lift indication IE from the master device 400 participate in a beacon period.
- FIG. 5 is a diagram illustrating another example of a resource reservation method between slave devices in a centralized network according to the present invention.
- the master device 500 periodically transmits a message informing its existence in the network (S550). Upon receiving this message, the first slave device 510 requests the master device 500 to establish a communication channel with the second slave device 520 (S552).
- the master device 500 Upon receiving the channel setting request, the master device 500 allocates a specific portion of the available resources to the first and second slave devices 510 and 520 or rejects resource allocation (S554 and S556). If the allocation is performed, the first slave device 510 and the second slave device 520 exchange and measure the channel environment for the communication link with each other (S558 and S560). The first and second slave devices 510 and 520 report the measured result to the master device 500 (S562 and S564), and the master device 500 checks the quality of the communication link between the slaves based on the reported measurement result. Accordingly, the appropriate amount of resources are calculated and the resource allocation is notified to the first and second slaves 510 and 520 (S566 and S568). The first and second slave devices 510 and 520 exchange data through the communication link using the allocated amount of resources (S570).
- S570 allocated amount of resources
- the resource reservation scheme between the slave devices described above is a multi-staged negotiation scheme.
- the multi-level negotiation method refers to a process including channel measurement between slave devices.
- the channel measurement between each device is performed periodically so that the master device may have the information.In this case, if there is a previous measurement history of the newly connected device, the channel measurement process may be skipped and then proceeded to the next step.
- the connection time can be reduced relatively.
- the present invention can precede the measurement of the environment of the communication channel between the slave in the initial access procedure and periodic / aperiodic channel information update process.
- the invention can also be embodied as computer readable code on a computer readable recording medium.
- the computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disks, optical data storage devices, and the like.
- the computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.
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Claims (26)
- 마스터 디바이스 및 슬레이브 디바이스를 포함하는 중앙 집중형 네트워크에서 상기 마스터 디바이스가 예약 대상이고 상기 슬레이브 디바이스가 예약 주체인 경우에 상기 마스터 디바이스에서의 자원 예약 방법에 있어서,상기 슬레이브 디바이스로부터 자원 예약 요청을 수신하는 단계;자원 예약 응답을 상기 슬레이브 디바이스로 전송하는 단계; 및자원 예약에 관한 정보를 비컨에 포함하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 1항에 있어서, 상기 자원 예약 요청을 수신하는 단계는,RSW 슬롯에서 CRP 예약 요청 명령 프레임을 상기 슬레이브 디바이스로부터 수신하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 1항에 있어서, 상기 자원 예약 응답을 전송하는 단계는,RSW 슬롯에서 CRP 예약 응답 명령 프레임을 전송하거나, 다음 슈퍼프레임의 비컨 내에 CRP IE를 포함하여 전송하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 1항에 있어서, 상기 자원 예약에 관한 정보를 포함하는 단계는,상기 비컨에 자원 예약에 관한 CRP 정보 요소(IE)를 포함하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 마스터 디바이스 및 슬레이브 디바이스를 포함하는 중앙 집중형 네트워크에서 상기 마스터 디바이스가 예약 대상이고 상기 슬레이브 디바이스가 예약 주체인 경우에 상기 슬레이브 디바이스에서의 자원 예약 방법에 있어서,자원들을 스캔하는 단계;자원 예약 요청을 상기 마스터 디바이스에게 전송하는 단계;상기 마스터 디바이스로부터 자원 예약 응답을 수신하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 5항에 있어서, 상기 자원을 스캔하는 단계는,비컨(beacon) 구간을 듣지 못해도 허용되는 슈퍼프레임 개수의 최대값 이상의 슈퍼 프레임들을 스캔하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 5항에 있어서, 상기 자원 예약 요청을 전송하는 단계는,RSW 슬롯에서 CRP 예약 요청 명령 프레임을 전송하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 5항에 있어서, 상기 자원 예약 응답을 수신하는 단계는,RSW 슬롯에서 CRP 예약 응답 명령 프레임을 수신하거나, 비컨에 CRP IE가 포함된 다음 슈퍼프레임을 수신하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 5항에 있어서,자원 예약 완료 후에 에코 비컨을 규칙적으로 전송하거나, 자신을 정규의 비커닝 디바이스로 승격하는 단계;를 더 포함하는 것을 특징으로 하는 자원 예약 방법.
- 마스터 디바이스 및 슬레이브 디바이스를 포함하는 중앙 집중형 네트워크에서 상기 마스터 디바이스가 예약 주체이고 상기 슬레이브 디바이스가 예약 대상인 경우에 상기 마스터 디바이스에서의 자원 예약 방법에 있어서,자원 예약 요청을 상기 슬레이브 디바이스에게 전송하는 단계;상기 슬레이브 디바이스로부터 자원 예약 응답을 수신하는 단계; 및자원 예약에 관한 정보를 비컨에 포함하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 10항에 있어서, 상기 자원 예약 요청을 전송하는 단계는,CRP IE가 포함된 비컨 또는 RSW 슬롯에서 CRP 요청 명령 프레임을 상기 슬레이브 디바이스에게 전송하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 10항에 있어서, 상기 자원 예약 응답을 수신하는 단계는,상기 슬레이브 디바이스로부터 RSW 슬롯에서 예약 응답 명령 프레임을 수신하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 10항에 있어서, 상기 자원 예약에 관한 정보를 포함하는 단계는,상기 비컨에 자원 예약에 관한 CRP 정보 요소(IE)를 포함하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 마스터 디바이스 및 슬레이브 디바이스를 포함하는 중앙 집중형 네트워크에서 상기 마스터 디바이스가 예약 주체이고 상기 슬레이브 디바이스가 예약 대상인 경우에 상기 슬레이브 디바이스에서의 자원 예약 방법에 있어서,상기 마스터 디바이스로부터 자원 예약 요청을 수신하는 단계; 및자원 예약 응답을 상기 마스터 디바이스에게 전송하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 14항에 있어서,상기 자원 예약 요청을 수신하는 단계는,상기 마스터 디바이스로부터 CRP IE가 포함된 비컨 또는 RSW 슬롯 내의 CRP 요청 명령 프레임을 수신하는 단계;를 포함하고,상기 자원 예약 응답을 전송하는 단계는,상기 비컨 내 CRP IE를 수신하면 RSW 슬롯에서 예약 응답 명령 프레임을 전송하고, 상기 RSW 슬롯에서 CRP 요청 명령 프레임을 수신하면 동일 또는 다른 RSW 슬롯에서 CRP 예약 응답 명령 프레임을 전송하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 14항에 있어서,자원 예약 완료 후에 에코 비컨을 규칙적으로 전송하거나, 자신을 정규의 비커닝 디바이스로 승격하는 단계;를 더 포함하는 것을 특징으로 하는 자원 예약 방법.
- 마스터 디바이스 및 슬레이브 디바이스들을 포함하는 중앙 집중형 네트워크에서 상기 슬레이브 디바이스들간의 자원 예약을 위한 상기 마스터 디바이스에서의 자원 예약 방법에 있어서,예약 주체인 제1 슬레이브 디바이스로부터 슬롯 요청을 수신하는 단계;상기 예약 주체에게 슬롯을 할당하는 단계; 및상기 예약 주체와 예약 대상인 제2 슬레이브 디바이스의 예약 협상을 상기 네트워크에 알리는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 17항에 있어서,상기 슬롯 요청을 수신하는 단계는, RSW 슬롯 요청을 수신하는 단계를 포함하고,상기 슬롯을 할당하는 단계는, RSW 슬롯을 할당하는 단계를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 17항에 있어서, 상기 예약 협상을 알리는 단계는,상기 제1 및 제2 슬레이브 디바이스에게 상기 예약 협상을 알리기 위하여 비컨에 제1 및 제2 슬레이브 디바이스에 관한 정보 요소(IE)를 포함하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 마스터 디바이스 및 슬레이브 디바이스들을 포함하는 중앙 집중형 네트워크에서 예약 주체인 제1 슬레이브 디바이스에서의 자원 예약 방법에 있어서,상기 제1 슬레이브 디바이스와 예약 대상인 제2 슬레이브 디바이스 사이의 링크 측정을 수행하는 단계;상기 제2 슬레이브 디바이스에게 자원 예약 요청을 전송하는 단계;상기 제2 슬레이브 디바이스로부터 자원 예약 응답을 수신하는 단계; 및상기 마스터 디바이스로부터 자원 예약을 듣는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 20항에 있어서,CSW에서 RSW 슬롯 요청을 상기 마스터 디바이스에게 전송하는 단계; 및상기 마스터 디바이스로부터 RSW 슬롯을 할당받는 단계;를 상기 링크 측정 단계 전에 더 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 20항에 있어서, 상기 링크 측정을 수행하는 단계는,상기 제2 슬레이브 디바이스에게 링크 측정을 요청하기 위하여 정보 요소들 없는 조사 명령 프레임을 전송하는 단계; 및측정 결과를 보고하기 위한 정보요소들을 포함하는 조사 명령 프레임을 상기 제2 슬레이브 디바이스로부터 수신하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 20항에 있어서, 상기 자원 예약 요청을 전송하는 단계는,CRP 예약 요청 명령 프레임을 전송하는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 20항에 있어서,자원 예약 완료 후에 에코 비컨을 규칙적으로 전송하거나, 자신을 정규의 비커닝 디바이스로 승격하는 단계;를 더 포함하는 것을 특징으로 하는 자원 예약 방법.
- 마스터 디바이스 및 슬레이브 디바이스들을 포함하는 중앙 집중형 네트워크에서 예약 대상인 제2 슬레이브 디바이스에서의 자원 예약 방법에 있어서,예약 주체인 제1 슬레이브 디바이스로부터 링크 측정을 위한 조사 명령 프레임을 수신하는 단계;상기 링크 측정을 보고하기 위한 정보 요소들을 포함하는 조사 명령 프레임을 상기 제1 슬레이브 디바이스에게 전송하는 단계;상기 제1 슬레이브 디바이스로부터 자원 예약 요청을 수신하는 단계;자원 예약 응답을 상기 제1 슬레이브 디바이스에게 전송하는 단계; 및상기 마스터 디바이스로부터 자원 예약을 듣는 단계;를 포함하는 것을 특징으로 하는 자원 예약 방법.
- 제 25항에 있어서,자원 예약 완료 후에 에코 비컨을 규칙적으로 전송하거나, 자신을 정규의 비커닝 디바이스로 승격하는 단계;를 더 포함하는 것을 특징으로 하는 자원 예약 방법.
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GB2479301B (en) * | 2009-01-16 | 2012-12-12 | Korea Electronics Telecomm | Resource reservation method in centralized network |
US8792900B2 (en) * | 2010-09-23 | 2014-07-29 | Nokia Corporation | Autonomous unlicensed band reuse in mixed cellular and device-to-device network |
JP5636861B2 (ja) * | 2010-10-14 | 2014-12-10 | 富士通株式会社 | 通信装置、通信システム、及び通信方法 |
KR20130039183A (ko) * | 2011-10-11 | 2013-04-19 | 한국전자통신연구원 | 무선 통신 시스템에서의 비컨 스케줄링 방법 및 그 장치 |
JP6311305B2 (ja) * | 2013-12-26 | 2018-04-18 | 沖電気工業株式会社 | 無線通信装置及び無線通信プログラム |
US9872224B2 (en) * | 2015-10-19 | 2018-01-16 | Sk Planet Co., Ltd. | Method for constructing beacon topology network |
GR1008894B (el) * | 2015-12-15 | 2016-11-14 | Arm Limited | Βελτιστοποιημενη συνεχης ροη σε μια μη διατεταγμενη διασυνδεση |
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GB2479301B (en) | 2012-12-12 |
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US20110289175A1 (en) | 2011-11-24 |
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