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WO2010067396A1 - Procédé et système de communication sans fil - Google Patents

Procédé et système de communication sans fil Download PDF

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Publication number
WO2010067396A1
WO2010067396A1 PCT/JP2008/003652 JP2008003652W WO2010067396A1 WO 2010067396 A1 WO2010067396 A1 WO 2010067396A1 JP 2008003652 W JP2008003652 W JP 2008003652W WO 2010067396 A1 WO2010067396 A1 WO 2010067396A1
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WO
WIPO (PCT)
Prior art keywords
priority data
cfp
data
search
coordinator
Prior art date
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Ceased
Application number
PCT/JP2008/003652
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English (en)
Japanese (ja)
Inventor
甄斌
李還幇
河野隆二
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National Institute of Information and Communications Technology
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National Institute of Information and Communications Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by National Institute of Information and Communications Technology filed Critical National Institute of Information and Communications Technology
Priority to PCT/JP2008/003652 priority Critical patent/WO2010067396A1/fr
Publication of WO2010067396A1 publication Critical patent/WO2010067396A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/26—Special purpose or proprietary protocols or architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
    • G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
    • G16H40/67—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for remote operation

Definitions

  • the present invention relates to a wireless communication method and system for performing data packet communication between a coordinator that performs wireless communication using a common wireless channel and a device, and in particular, priority data related to human life is preferentially attached to a human body.
  • the present invention relates to a wireless communication method and system suitable for transmission.
  • blood pressure and electrocardiogram are particularly important parameters for determining the current state of health of the patient.
  • athletes may want to measure their physical condition via a device during sports in order to improve skills and training quality.
  • a wired communication system has been proposed in which a device is attached to a human body, and various information in the body measured thereby is transmitted to a wiredly connected monitor, and these are grasped via a monitor image.
  • this wired cable may be easily tangled, and there is a problem that the distance from the patient to the monitor itself is restricted due to the length of the wired cable. Also, athletes have a problem that the existence of this cable becomes a barrier to actual sports.
  • the network 7 that establishes a wireless communication link between the device embedded in the body and the coordinator is a short-range wireless communication between a coordinator 71 that controls the network 7 and a plurality of devices 72. It is common to do.
  • the device 72 is embedded in the human body, and the coordinator 71 is placed outside the human body.
  • various network forms such as a star type, a tree type, and a mesh type can be selected.
  • the network 7 uses a so-called superframe structure using a beacon.
  • the head is a beacon, and thereafter, a CAP (Contention Access Period) accessible to all devices 72, a CFP (Contention Free Period) accessible exclusively by a specific device 72, all An Inactive period in which the device 72 is prohibited from accessing continues.
  • the CFP is divided into seven equal parts by a GTS (Guaranty time Slot) mechanism, and can be assigned to a device 72 that preferentially performs communication.
  • this super frame structure is based on the IEEE 802.15.4 standard or the like.
  • the in-vivo information can be classified into priority data with a very high priority related to human life and other information with a low importance.
  • the priority data and other information are not classified at all, and are sent to the coordinator 71 uniformly.
  • the priority data in which information related to human life is described may compete for one second for the communication.
  • priority data when priority data is to be transmitted from the device 72 to the coordinator 71, there is no empty slot in the CAP or CFP in the superframe structure on the coordinator 71 side, and this is assigned to the subsequent superframe structure slot. It will be. As a result, the transmission of priority data is delayed, which can affect human life.
  • the present invention has been devised in view of the above-described problems, and its object is to perform data packet communication between a coordinator that performs wireless communication using a common wireless channel and a device. It is an object of the present invention to provide a wireless communication method and system capable of transmitting data more quickly by assigning priority data relating to human life to slots on the coordinator side with higher priority in particular.
  • the present inventor extracts priority data to be preferentially transmitted to the coordinator from data received by the devices when performing wireless communication between a plurality of devices and the coordinator.
  • the effective slot to which the priority data extracted by the device can be allocated is searched for the CAP and CFP in the superframe structure configured on the coordinator side, and the existence of the effective slot is confirmed, the device Invented a wireless communication method and system for reserving priority data allocation for a valid slot and then transmitting it to a coordinator.
  • the wireless communication method according to the present invention is a wireless communication method in which wireless communication is performed between a plurality of devices and a coordinator, and priority data to be preferentially transmitted to the coordinator from data received by the device. And a search for searching for effective slots to which the device can assign the priority data extracted in the priority data extraction step with respect to the CAP and CFP in the superframe structure configured on the coordinator side. And a communication step of transmitting the priority data to the coordinator after the device reserves the priority data allocation to the valid slot when the presence of the valid slot is confirmed in the search step. It is characterized by having.
  • the wireless communication system is a wireless communication system that performs wireless communication between a plurality of devices and a coordinator, and the device should preferentially transmit the received data to the coordinator.
  • Priority data extraction means for extracting data
  • search means for searching for effective slots to which priority data extracted by the priority data extraction means can be assigned to CAP and CFP in the superframe structure configured on the coordinator side
  • communication means for reserving allocation of the priority data to the effective slot and transmitting it to the coordinator when the search means can confirm the existence of the effective slot.
  • a wireless communication system 1 to which the present invention is applied includes, for example, as shown in FIG. 1, a plurality of devices 2 and a coordinator 3 that controls the entire network.
  • the wireless communication system 1 is not limited to the star type as shown in FIG. 1, and any network form such as a tree type or a mesh type may be applied.
  • the device 2 may be embedded (implanted) in the human body 5 or attached to the human body 5. Then, the coordinator 3 may be disposed outside the human body 5. In such a case, the device 2 images the inside of the human body 5 or senses various information inside the body, and transmits the acquired data to the coordinator 3 outside the body. The coordinator 3 receives such data, displays the data on the monitor 6 as necessary, and analyzes this to detect abnormalities in the human body.
  • the coordinator 3 is connected to the public communication network 7 via wired or wireless communication.
  • the device 2 is assumed to be any electronic device including at least a CPU (Central Processing Unit). In particular, as long as it is assumed that it is embedded or worn in the human body 5 in terms of application, it may be composed of a micro chip including a CPU.
  • a sensor (not shown) is attached to the device 2 and receives various in-vivo information such as information related to body temperature, information related to blood pressure, and heart rate.
  • various portable devices such as a mobile phone, etc. You may comprise with an information terminal etc.
  • the device 2 can perform wireless communication with at least the coordinator 3, and can further perform wireless communication with another device 2 via the coordinator 3.
  • the coordinator 3 is composed of a terminal device or a portable information terminal that operates under the control of the CPU.
  • the coordinator 3 assigns data transmitted from the device 2 to a data slot managed by the coordinator 3.
  • the coordinator 3 manages each of the plurality of devices 2 with index information and numbers.
  • the radio communication system 1 to which the present invention is applied uses a so-called superframe structure using a beacon 21 as shown in FIG.
  • a specific example of the superframe period is 15.36 ms, and the beacon 21 is followed by CAP (Contention Access Period) 22 and CFP (ContentionFree Period) 23.
  • the time between the two beacons 21 is divided into a predetermined number of slots regardless of the period of the superframe.
  • no other data is reserved yet among the CAP22 and CFP23, and the surplus slot is defined as PAP (priority access period).
  • PAP priority access period
  • This PAP can be considered as an effective slot to which priority data to be described later can be assigned.
  • this PAP is targeted for the remaining slots other than the reserved slot.
  • an inactive period (not shown) in which access to all devices 2 is prohibited may be inserted after the CFP 23 as necessary.
  • the beacon 21 is located in the first slot in the super frame structure.
  • the CAP 22 and the CFP 23 are roughly divided into a data frame 41 into which actual data is inserted and an Ack frame 42, respectively.
  • a super frame group 27 in which a plurality of super frames 26 are arranged is formed. Then, the super frame in which the beacon 21 is inserted is set in an active state, and the super frame in which the beacon 21 is not inserted is set in a sleep state. That is, in this super frame structure, the access amount and access frequency from many devices 2 become high, and when it is necessary to allocate a large amount of data to the slot, many super frames 26 constituting this super frame group 27 are used. The beacon 21 is inserted into the active state, and data can be assigned to them.
  • the superframe 26 which is the minimum necessary for allocation in this superframe group 27.
  • the beacon 21 is inserted into the active state, and the rest is put into the sleep state by not inserting the beacon 21. That is, the power consumption of the coordinator 3 can be reduced by increasing the ratio of the superframes 26 in the sleep state.
  • the wireless communication system 1 to which the present invention is applied it is possible to increase the ratio of the superframe 26 to be in the sleep state when the amount of data transmission is small, and it is possible to save power and to save data. It is possible to cope with this by increasing the number of active superframes 26 only when the amount of transmission is large.
  • index information may be added to each super frame 26 constituting the super frame group.
  • the coordinator 3 may control each super frame 26 through the index information, and may perform various controls including insertion or non-insertion of the beacon 21 through the index information.
  • FIG. 3 shows a processing flow of the in-vivo information received by the device 2.
  • the device 2 receives from the body various body data such as body temperature information, blood pressure information, and heart rate.
  • the device 2 extracts priority data related to human life to be preferentially transmitted to the coordinator 3 from the in-vivo data.
  • This priority data may be extracted by any method. For example, when it is determined whether or not the received heart rate corresponds to priority data, a threshold value is set in advance, and if the heart rate exceeds the threshold value, the priority data is assumed to be related to human life. You may make it judge.
  • the priority data is stored in the buffer 31, and the normal data other than the priority data is stored in the buffer 32.
  • These priority data and normal data can be temporarily arranged in a row in the buffers 31 and 32, respectively.
  • the priority data is preferentially transmitted.
  • a valid slot (PAP) to which the priority data extracted by the device 2 can be allocated is searched for the CAP 22 and the CFP 23 in the superframe structure configured on the coordinator 3 side.
  • PAP valid slot
  • FIG. 4B shows a case where the CAP 22 has not been used from the beginning as a result of the search by CCA. In such a case, assuming all the CAP22 is valid slot, reserving the assignment of priority data that search starting position a 13 as a start point.
  • the CAP 22 Reserve allocation of priority data from the search start point.
  • FIG. 4 (d) shows a case where no other data has been used in the CFP 23 from the beginning as a result of the search by CCA. In such a case, it is assumed that all the slots in the CFP 23 are valid slots, and allocation of priority data is reserved from the starting point of the CFP 23.
  • a search is first performed on the CFP 23, and a valid slot into which priority data can be written exists in the CFP 23. If it is already used by other data, priority data is reserved from the search start point in the CFP 23. If the CFP 23 is not already used by other data, priority data is reserved from the start point of the CPF 23. Make a reservation.
  • a search is performed on the CAP 22 and it is used even if it is used by other data from the beginning. Even if there is no valid slot in which the priority data can be written in the CAP 22, reservation of priority data is reserved from the search start point.
  • normal data stored in the buffer 32 is transmitted.
  • the allocation of the priority data to the slot is executed based on the above-described flow.
  • the normal data stored in the buffer 32 is transmitted.
  • the normal data acquired by the device 2 until then is stored in a sequence in the buffer 32 sequentially.
  • the search start time is CAP22
  • the search is performed in the order of CAP22 and CFP23.
  • the search start time is CFP23
  • the search is performed in the order of CFP23 and CAP.
  • the in-vivo data received by the device 2 is classified into priority data with extremely high priority related to human life and other normal data with low priority other than that, and is configured on the coordinator 3 side.
  • the effective slot (PAP) to which the priority data extracted by the device 2 can be assigned is searched for the CAP 22 and the CFP 23 in the super frame structure and the existence of the effective slot (PAP) is confirmed, the device 2 The priority data allocation is reserved for the valid slot (PAP). Then, after reservation of this priority data, it is transmitted to the coordinator 3.
  • FIG. 5 shows an operation flow of the wireless communication system 1 to which the present invention is applied.
  • the coordinator 3 broadcasts the beacon 21 at the timing described above.
  • the device 2 listens to the beacon 21 at least for the end time of the preamble section 32 through the listening period, and then synchronizes between the device 2 and the coordinator 3 based on this.
  • step S12 the process proceeds to step S12, and the device 2 performs the above-described search.
  • the device 2 finishes extracting the priority data before reaching step S12. If no priority data is accumulated in the buffer 31, it is not particularly necessary to execute the flow after step S12. On the other hand, when priority data is accumulated in the buffer 31, the flow after step S12 is executed.
  • step S13 priority data is sent from the device 2 to the coordinator 3.
  • the coordinator 3 allocates and inserts the priority data sent from the device 2 to the PAP reserved in advance.
  • step S ⁇ b> 14 the coordinator 3 transmits Ack to the device 2.
  • This Ack includes information on the data slot of the PAP to which data is actually allocated.
  • the device 2 that has received the Ack can identify to which data slot of the CAP 22 or the CFP 23 the priority data transmitted by itself is assigned as the PAP.
  • FIG. 6 is a flowchart showing a procedure for transmitting data from the coordinator 3 to the device 2.
  • the coordinator 3 broadcasts the beacon 21 at the timing described above.
  • the device 2 listens to the beacon 21 at least for the end time of the preamble section 32 through the listening period, and then synchronizes between the device 2 and the coordinator 3 based on the acquired end time in step S12.
  • step S24 the coordinator 3 assigns a data slot in the CFP 23 to data transmitted from the device 2 in the future.
  • the coordinator 3 transmits an Ack signal via the data slot of the CAP 22 to the device 2 that has sent the data transmission request.
  • the data slot in the CFP 23 allocated in step S24 is also included in the Ack signal to notify the device 2 of this.
  • the device 2 that has received Ack can identify to which data slot of the CFP 23 data to be transmitted from the coordinator 3 will be assigned.
  • step S26 data is transmitted from the coordinator 3 to the device 2. Since the device 2 recognizes the data slot of the CFP 23 assigned to the transmitted data from the coordinator 3 in advance through the Ack signal, the data is transmitted from the current slot, so the transmission start time is shortened, Further, since the data is sent via the CFP 23, there is an effect that data collision can be prevented.
  • step S27 an Ack signal is transmitted from the device 2 to the coordinator 3.
  • This Ack signal is for notifying the coordinator 3 that the reception of data has been completed.
  • Table 1 shows examples of various parameters in the wireless communication system 1.
  • Table 2 shows a configuration example of a beacon frame.
  • Table 3 shows a configuration example of the data frame.
  • Table 4 shows a configuration example of the Ack frame.
  • Table 5 shows a configuration example in the MAC command frame.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un système de communication sans fil qui attribuent de façon préférentielle des données préférentielles se rapportant plus particulièrement à une vie humaine à un intervalle de temps du côté d'un coordinateur, les données préférentielles étant ainsi transmises plus rapidement. Dans le cas d'une communication sans fil entre une pluralité d'appareils (2) et le coordinateur (3), un appareil (2) extrait des données reçues les données préférentielles qui doivent être transmises de façon préférentielle au coordinateur (3). Une période d'accès avec concurrence (CAP) (22) et une période d'accès sans concurrence (CFP) (23) dans une structure de super trame constituée du côté du coordinateur (3) sont soumises à une recherche d'un intervalle de temps efficace auquel pourraient être affectées les données extraites par le dispositif (2). Lorsque la présence de l'intervalle de temps efficace est confirmée, le dispositif (2) réserve l'affectation des données préférentielles à l'intervalle de temps efficace, puis transmet celles-ci au coordinateur (3).
PCT/JP2008/003652 2008-12-08 2008-12-08 Procédé et système de communication sans fil Ceased WO2010067396A1 (fr)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011087295A (ja) * 2009-10-13 2011-04-28 Korea Electronics Telecommun 緊急データのためのスロット割り当て方法及びそれを用いた緊急データ伝送方法
WO2012005000A1 (fr) * 2010-07-07 2012-01-12 パナソニック株式会社 Appareil de communication, appareil terminal de communication, système de communication et procédé de communication
JP2012178744A (ja) * 2011-02-25 2012-09-13 Nintendo Co Ltd 無線通信プログラム、情報処理装置、および通信制御方法
EP2908567A4 (fr) * 2012-10-15 2016-01-06 Huawei Tech Co Ltd Procédé d'envoi de données, procédé et dispositif de réception de données
CN107534939A (zh) * 2015-04-10 2018-01-02 高通股份有限公司 Ioe设备传输信令和调度

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001243322A (ja) * 1999-10-29 2001-09-07 Medtronic Inc 医用デバイス・システムの構成要素の識別を遠隔地で行うための装置及び方法
JP2002202202A (ja) * 2000-12-27 2002-07-19 Nikon Corp 測温計及び赤外線カメラ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001243322A (ja) * 1999-10-29 2001-09-07 Medtronic Inc 医用デバイス・システムの構成要素の識別を遠隔地で行うための装置及び方法
JP2002202202A (ja) * 2000-12-27 2002-07-19 Nikon Corp 測温計及び赤外線カメラ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SINEM COLERI ERGEN: "ZigBee/IEEE 802.15.4 Summary", 10 September 2004 (2004-09-10), Retrieved from the Internet <URL:http://www.sinemergen.com/zigbee.pdf> [retrieved on 20081219] *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011087295A (ja) * 2009-10-13 2011-04-28 Korea Electronics Telecommun 緊急データのためのスロット割り当て方法及びそれを用いた緊急データ伝送方法
WO2012005000A1 (fr) * 2010-07-07 2012-01-12 パナソニック株式会社 Appareil de communication, appareil terminal de communication, système de communication et procédé de communication
JP2012178744A (ja) * 2011-02-25 2012-09-13 Nintendo Co Ltd 無線通信プログラム、情報処理装置、および通信制御方法
US10111242B2 (en) 2011-02-25 2018-10-23 Nintendo Co., Ltd. Systems and methods of preferential queuing by an information processing apparatus in a doze state
EP2908567A4 (fr) * 2012-10-15 2016-01-06 Huawei Tech Co Ltd Procédé d'envoi de données, procédé et dispositif de réception de données
US9655111B2 (en) 2012-10-15 2017-05-16 Huawei Technologies Co., Ltd. Method for transmitting data, method for receiving data, and device
CN107534939A (zh) * 2015-04-10 2018-01-02 高通股份有限公司 Ioe设备传输信令和调度
JP2018514150A (ja) * 2015-04-10 2018-05-31 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ ＩｏＥデバイス送信シグナリングおよびスケジューリング

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