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WO2010003337A1 - Procédé de communication à courte distance, dispositif et réseau - Google Patents

Procédé de communication à courte distance, dispositif et réseau Download PDF

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Publication number
WO2010003337A1
WO2010003337A1 PCT/CN2009/072077 CN2009072077W WO2010003337A1 WO 2010003337 A1 WO2010003337 A1 WO 2010003337A1 CN 2009072077 W CN2009072077 W CN 2009072077W WO 2010003337 A1 WO2010003337 A1 WO 2010003337A1
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WO
WIPO (PCT)
Prior art keywords
beacon
information
network
sent
short
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2009/072077
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English (en)
Chinese (zh)
Inventor
刘永俊
邢志浩
赵牧
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
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Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2010003337A1 publication Critical patent/WO2010003337A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks

Definitions

  • the present invention relates to communication technologies, and more particularly to a method, device and network for short-range communication. Background technique
  • Wi reles s Per sona l Area Network (hereinafter referred to as WPAN).
  • a WPAN can be constructed as two networks that communicate in different ways, one called a beacon network and the other called a non-beacon network.
  • the beacon network is characterized by its strict communication protocol.
  • the beacon acts as a synchronous network device, allowing the device to periodically sleep to save energy. The longer the beacon period, the more energy savings, and the beacon can pass. It is specified that the time slot sent and received by the device provides a certain delay guarantee.
  • the beacon network may cause beacon conflict due to too many devices transmitting beacons, so that the device cannot receive the beacon correctly. In order to avoid beacon collisions, it is necessary to have possible conflicting beacons transmitted in different time slots within one beacon period. However, if the network equipment is too dense and the total length of beacons of all beacon transmitting devices has reached or approached the length of one beacon period, it is no longer possible to add new beaconing devices.
  • the beacon of the device Because, regardless of which time slot the beacon of the device is scheduled to transmit in the beacon period, it will collide with the existing beacon. If the beacon period is extended, more new devices can be allowed to join, and the device can save more energy, but it will increase the response delay of the device. Therefore, the general beacon network form is difficult to use for large-scale networks or networks with high equipment density.
  • the non-beacon network is characterized by simple communication procedures and no need for synchronization between devices.
  • the standby and communication are relatively flexible, and it is easy to set up a large network, but it is not conducive to synchronous operation.
  • the device needs to sleep and save energy, it consumes more energy than the beacon network.
  • the embodiments of the present invention provide a short-distance communication method, device, and network, so that a beacon network and a non-beacon network can be simultaneously constructed in one WPAN.
  • a short-range communication device includes a monitoring module, a transceiver module, and a demand processing module, wherein the monitoring module is configured to monitor a beacon sent by the beacon transmitting device in the wireless personal area network, and according to parameters included in the monitored beacon, Controlling the transceiver module, receiving information sent by the beacon transmitting device when it is required to receive information, and/or transmitting information to the beacon transmitting device when the information needs to be sent;
  • the transceiver module is used for information interaction with other devices in the network;
  • the demand processing module is configured to receive, by the transceiver module, an information acquisition request sent by other devices in the network at any time when the short-distance communication device is in a working state, and determine that the short-distance communication device has a device that needs to be sent to the sending request.
  • the control transceiver module directly sends the information to the device that sends the request.
  • Another short-range communication device includes a requesting module, a transceiver module, and a beacon module, wherein the requesting module is configured to directly transmit the transceiver module to the wireless personal area network when the short-range communication device is in a working state and needs to obtain information.
  • the other device sends an information acquisition request, and controls the transceiver module to receive the information sent by the requested device according to the request;
  • the transceiver module is used for information interaction with other devices in the network;
  • the beacon module is configured to send a beacon to other devices in the network through the transceiver module, and control the transceiver module according to the parameters included in the beacon, receive the information sent by the beacon receiving device when the information needs to be received, and/or The information is sent to the beacon receiving device when the information needs to be sent.
  • a wireless personal area network including:
  • the device communicating based on the beacon mode and the non-beacon mode is configured to listen to a beacon transmitted by the device capable of communication based on the beacon mode, and receive the information according to the parameter included in the beacon when the information needs to be received.
  • Another wireless personal area network including:
  • the device communicating based on the beacon mode and the non-beacon mode is configured to send a beacon to at least a device capable of communicating based on the beacon mode in the network, and according to the parameter included in the beacon and the at least beacon-based manner
  • the communication device performs information exchange; and sends an information acquisition request to the device that can communicate based on at least the non-beacon mode, and receives the information that the device that can communicate based on the non-beacon mode transmits according to the request.
  • a short-range communication method includes:
  • the information acquisition request sent by the other device is received at any time, and when the information of the device that needs to be sent to the transmission request is determined, the information is directly sent to the device that sends the request.
  • Another short-range communication method includes:
  • Embodiments of the present invention provide a short-range communication device that can simultaneously be based on a beacon side
  • the communication between the non-beacon and the non-beacon system solves the fundamental contradiction that the beacon network and the non-beacon network cannot coexist. Therefore, the short-distance communication device can simultaneously construct the beacon network and the non-beacon network in one WPAN.
  • the wireless personal area network provided by the embodiment of the present invention can adapt to different applications through a device capable of working in a beacon manner and a non-beacon manner, so that applications that need to communicate based on beacons and those that need to communicate based on non-beacons are required. Applications can be met simultaneously in a wireless personal area network and can achieve better operational status.
  • the short-distance communication method provided by the embodiment of the present invention can perform information interaction between a device capable of communicating in a beacon manner and a non-beacon manner in a network, and a device in a beacon network and a non-beacon network. It is possible to simultaneously satisfy the needs of the beacon network and the requirements of the non-beacon network in a wireless personal area network.
  • FIG. 1 is a schematic diagram of a beacon network extension manner in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a non-beacon network extension manner in an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a first embodiment of a short-range communication device according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a second embodiment of a short-range communication device according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a fourth embodiment of a short-range communication device according to an embodiment of the present invention
  • FIG. 7 is a first implementation of a wireless personal area network according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of a second embodiment of a wireless personal area network according to an embodiment of the present invention
  • FIG. 9 is a schematic diagram of a third embodiment of a wireless personal area network according to an embodiment of the present invention
  • FIG. 11 is a schematic diagram of a fifth embodiment of a wireless personal area network according to an embodiment of the present invention
  • FIG. 12 is a first implementation of a short-range communication method according to an embodiment of the present invention
  • FIG. 13 is a flowchart of a second embodiment of a short-range communication method according to an embodiment of the present invention
  • FIG. 14 is a flowchart of the present invention.
  • 15 is a schematic diagram of a second embodiment of adding a new device to a wireless personal area network in an embodiment of the present invention;
  • 16 is a schematic diagram of a first implementation manner of a device change communication manner in a wireless personal area network according to an embodiment of the present invention
  • FIG. 17 is a schematic diagram of a second implementation manner of a device change communication mode in a wireless personal area network according to an embodiment of the present invention. detailed description
  • the beacon network and the non-beacon network cannot be accommodated in one WPAN at the same time, that is, one WPAN can only be a beacon network or a non-beacon network, mainly because the device can only communicate by beacon in the WPAN. Or you can only communicate in a non-beacon manner.
  • each device as a coordinator communicates with a certain number of devices as non-coordinators; the coordinator can periodically transmit beacons in respective cycles, and the superframe structure of the coordinator can be defined in the beacon
  • the device acting as a non-coordinator synchronizes with the coordinator by listening to the coordinator's beacon, and communicates with the coordinator transmitting the beacon using the superframe parameters in the beacon.
  • the device within the WPAN may be, for example, any communication entity having a media access control layer and a physical layer radio interface capable of operating in the WPAN.
  • the coordinator is usually a device with strong communication and information processing capabilities, especially information transceiving capabilities.
  • beacon network only the coordinator can periodically send beacons, and devices that are non-coordinators cannot communicate with any coordinator without being synchronized with the beacon.
  • the non-coordinator sends information to the coordinator with which it communicates within the time slot specified by the parameters of the beacon.
  • the device acting as a coordinator can also act as a non-coordinator device and extend the beacon network in this way.
  • FIG. 1 is a schematic diagram of a beacon network extension manner in an embodiment of the present invention.
  • the beacon network can be extended in the manner shown in Figure 1.
  • the circle in Figure 1 represents the device that periodically transmits the beacon, and the moment The shape represents a device that sends a beacon aperiodically.
  • the device 1-1 periodically transmits a beacon as a coordinator, in which the superframe structure of the device 1-1 is defined.
  • Device 1-2 and device 1-3 act as non-coordinators of device 1-1, listening to the beacon of device 1-1, and synchronizing with device 1-1 accordingly.
  • the device 1-2 also periodically transmits the beacon as a coordinator, and the devices 1-4 and 1-5 act as beacons of the non-coordinator listening device 1-2, and are synchronized with the device 1-2 accordingly. It can be seen that the device 1-2 can act as a coordinator or a non-coordinator for different devices.
  • each device acting as a coordinator communicates with a certain number of devices acting as non-coordinators; the device acting as a non-coordinator queries the coordinator with which it communicates and requests information to be sent to itself; if the coordinator If such information is stored, the information is sent to the requesting device.
  • the non-coordinator sends information to the coordinator with whom it communicates in a competitive manner.
  • the device acting as a coordinator can also act as a non-coordinator and extend the non-beacon network in this way.
  • FIG. 2 is a schematic diagram of a non-beacon network extension manner in an embodiment of the present invention.
  • the non-beacon network can be extended in the manner shown in Figure 2.
  • the rectangle in Figure 2 represents a device that transmits beacons aperiodically.
  • the device 2-1 communicates as a coordinator with the device 2-2 and the device 2-3 as non-coordinators.
  • Device 2-2 and device 2-3 send an inquiry to device 2-1 and request information to be sent to itself. After receiving the request, the device 2-1 transmits the information to the device 2-2 or the device 2-3 when it is determined that there is information to be transmitted to the device 2-2 or the device 2-3.
  • the device 2-2 also communicates as a coordinator with the devices 2-4 and 2-5, with the devices 2-4 and 2-5 acting as non-coordinators of the device 2-2.
  • Device 2-4 and device 2-5 send an inquiry to device 2-2 and request information to be sent to itself.
  • the device 2-2 transmits the information to the device 2-4 or the device 2-5 when it is determined that there is information to be sent to the device 2-4 or the device 2-5.
  • a WPAN usually needs to have multiple applications at the same time, and different applications are respectively adapted to the beacon network or the non-beacon network.
  • beacon networks low latency and low power consumption are contradictory, so it is difficult to coexist with audio applications that require low latency and environmental monitoring applications that require low energy consumption.
  • audio applications that require low latency and environmental monitoring applications that require low energy consumption.
  • non-beacon network because the devices are not synchronized, conflicts may occur, and it is difficult to simultaneously adapt to audio requirements that require strong real-time performance. Application with and without real-time sensing data.
  • the mutual exclusion between the beacon network and the non-beacon network makes it impossible to accommodate both the beacon-based communication application and the non-beacon communication-based communication in one WPAN, and it is not possible to achieve different applications in a WPAN.
  • the state of operation In addition, the information in the beacon network and the non-beacon network cannot be interworked in the prior art.
  • the short-distance communication method, device and network provided by the embodiments of the present invention can simultaneously accommodate the beacon network and the non-beacon network in the same WPAN, and realize information interworking between the two networks, so as to cope with different applications coexisting in one WPAN. Demand in the middle.
  • FIG. 3 is a schematic structural diagram of a first embodiment of a short-range communication device according to an embodiment of the present invention. As shown in FIG. 3, an embodiment of the present invention provides a short-range communication device, including: a transceiver module 3-1, a listening module 3- 2, and a requirement processing module 3- 3.
  • the transceiver module 3-1 is configured to exchange information with other devices in the network; the monitoring module 3-2 is configured to listen to the beacon sent by the beacon transmitting device in the wireless personal area network, and according to the beacon included in the monitored beacon The parameter, the control transceiver module 3-1, receives the information sent by the beacon transmitting device when the information needs to be received, and/or sends the information to the beacon transmitting device when the information needs to be sent; the demand processing module 3-3 is used for the short When the communication device is in the working state, the transceiver module 3-1 receives the information acquisition request sent by other devices in the network at any time, and when determining that there is information to be sent to the device that sends the request, the control transceiver module 3-1 directly sends the information. The requested device sends this information.
  • the embodiment of the invention provides a short-distance communication device, which can simultaneously communicate based on the beacon mode and the non-beacon mode, and solves the fundamental contradiction that the beacon network and the non-beacon network cannot coexist, so the short-distance communication is adopted.
  • the device can simultaneously construct a beacon network and a non-beacon network in one WPAN.
  • the short-range communication device has the following modules: a listening module 4-1, a 4 module 4-2, and a demand processing module 4-3.
  • the monitoring module 4-1 is configured to listen to the beacon periodically sent by the coordinator in the network, and control the transceiver module 4-2 according to the parameters in the monitored beacon, and receive the beacon transmitting device when the information needs to be received.
  • the sent information may also be sent to the beacon transmitting device when needed; the transceiver module 4-2 is used for information interaction with other devices, including but not limited to, sending signals to devices in the network under the control of other modules.
  • Targets receive beacons of devices in the network, send information acquisition requests to other devices in the network, receive information acquisition requests sent by other devices in the network, send parameter acquisition requests to other devices in the network, and obtain parameters obtained by other devices in the network.
  • the transceiver module 4-2 also has the same or similar functions; the demand processing module 4-3 is used in the short-range communication device When in the working state, the transceiver module 4-2 receives the information acquisition request sent by other devices in the network at any time, and when determining that there is information in the device that needs to be sent to the device for sending the request, the control transceiver module 4-2 directly The device that sent the request sends the information.
  • the requirement processing module 4-3 sends the information directly to the device that sends the request by controlling the transceiver module 4-2.
  • the requirement processing module 4-3 only needs to process the information acquisition request sent by the device that sends the request, and then sends the specific information. Or it is blank information, and it does not need to be sent in a specific time slot when sending information.
  • the information obtaining request sent by the device may be information about whether the requested device has a device that needs to send a request, and request the device to send the information that needs to be sent to the device that sends the request; the information obtaining request may also be directly requested for the request.
  • the device sends information that needs to be sent to the device that sent the request.
  • the information acquisition request also has the same meaning.
  • the beacon may include a superframe parameter of the transmitting beacon device, including but not limited to a period of transmitting the beacon and a structural parameter of the superframe. In other embodiments of the present specification, the superframe parameters also have the same meaning.
  • the listening module 4-1 of the short-range communication device monitors the beacon periodically transmitted by the coordinator through the transceiver module 4-2, and synchronizes with the coordinator according to the superframe parameters included in the beacon. According to the beacon monitored by the monitoring module 4-1, when the information needs to be transmitted and/or received, the monitoring module 4-1 controls the transceiver module 4-2 of the short-range communication device to transmit and/or receive information with the coordinator. . Therefore, the short-range communication device can communicate as a non-coordinator and a coordinator based on the beacon to construct a beacon network.
  • the demand processing module 4-3 of the short-range communication device receives the non-coordinator communication information acquisition request from the non-beacon mode by the transceiver module 4-2, and determines that there is a need to send the transmission request to the transmission request.
  • the control transceiver module 4-2 transmits the device to the device that sent the request. Information. Therefore, the short-range communication device can communicate as a coordinator and a non-coordinator based on a non-beacon mode to construct a non-beacon network.
  • the short-range communication device can communicate based on the beacon mode or the non-beacon mode, and construct the beacon network and the non-beacon network, so that the beacon network and the non-beacon network exist in one WPAN at the same time, At the same time, the requirements of different applications are met, and the information of the beacon network and the non-beacon network can be interworked.
  • the short-range communication device may further include a requesting module 4-4.
  • the requesting module 4-4 is configured to send an information acquisition request to the other devices in the wireless personal area network directly through the transceiver module 4-2 when the short-range communication device is in an active state and needs to acquire information, and request the module 4-4.
  • the control transceiver module 4-2 receives the information transmitted by the coordinator according to the information acquisition request.
  • the requesting module 4-4 directly sends the information obtaining request when the information needs to be acquired, and does not need to be sent to other devices in a specific time slot, and does not need to consider whether the requested device can transmit.
  • the short-range device can perform information transfer as a non-coordinator and a coordinator communicating in a non-beacon manner, thereby more flexibly expanding a portion of the non-beacon network in the WPAN.
  • the short range communication device may further comprise a beacon module 4-5.
  • the beacon module 4-5 is configured to periodically send a beacon to a device in the system through the transceiver module 4-2, and the control transceiver module 4-2 sends the information to the non-coordinator when it needs to send information to the non-coordinator. , or receive information from a non-coordinator when it is necessary to receive information from a non-coordinator.
  • the beacon may contain superframe parameters of the short range communication device. Other devices communicating in a beacon manner can listen to the periodically transmitted beacon, synchronize with the short-range communication device, and perform information interaction with the short-range communication device according to the beacon transmitted by the beacon module 4-5.
  • the transceiver module 4-2 periodically transmits the beacon, the short-range communication device can also communicate as a coordinator and other non-coordinator communicating in a beacon manner based on the beacon mode, and more flexible expansion.
  • the beacon network part of the WPAN The beacon network part of the WPAN.
  • the beacon module 4-5 of the short-range communication device can also set the parameters contained in the transmitted beacon, or obtain the same from the superframe parameters of other beacon transmitting devices in the network.
  • the superframe parameter sets its own superframe parameters.
  • the beacon of the beacon device directly communicating with the same may be monitored, or the beacon module 4-5 may be sent to the beacon module 4-5 through the transceiver module 4-2.
  • the device adjacent thereto sends a request to obtain a superframe parameter, or the neighboring device actively sends a superframe parameter to the short-range communication device. If there is no superframe parameter in the neighboring device of the short-range communication device, the neighboring device requests the superframe parameter from other devices in the network.
  • the beacon module 4-5 of the short-range communication device may further comprise a storage function for saving superframe parameters in the monitored beacon.
  • the beacon module 4-5 may control the transceiver module 4-2 to send the saved superframe parameter to the device that sends the request, or the beacon module 4-5 may actively store it.
  • the superframe parameters are sent by the transceiver module 4-2 to other devices within the communication range of the short-range communication device.
  • the beacon module 4-5 can also avoid communication collisions according to the saved superframe parameters.
  • the beacon module 4-5 can control, according to the saved superframe parameter, the time at which the transceiver module 4-2 transmits the beacon at the coordinator synchronized with the short-range communication device. , does not receive information acquisition requests sent by other devices, does not send information acquisition requests to other devices, and does not interact with devices based on non-beacon communication methods to avoid non-trust at the time when the coordinator periodically transmits beacons. The standard way to communicate with other devices.
  • the beacon module 4-5 can also control the transceiver module 4-2 to transmit or receive information when the short-range communication device transmits the beacon and the other device in the device and the beacon network according to the saved superframe parameter.
  • the information acquisition request sent by other devices is not received, the information acquisition request is not sent to other devices, and the information is not exchanged with the device based on the non-beacon communication mode, so as to prevent the short-range communication device from simultaneously Beacon mode and non-beacon mode communication.
  • FIG. 5 is a schematic structural diagram of a third embodiment of a short-range communication device according to an embodiment of the present invention.
  • an embodiment of the present invention further provides a short-range communication device, including: a transceiver module 5-1, a request module 5-2, and a beacon module 5-3.
  • the transceiver module 5-1 is configured to exchange information with other devices in the network.
  • the requesting module 5-2 is configured to directly pass through the transceiver module 5-1 when the short-distance communication device is in a working state and needs to obtain information.
  • the other device in the wireless personal area network sends an information acquisition request, and controls the transceiver module 5-1 to receive the information sent by the requested device according to the request; the beacon module 5.3 is used to send the transceiver module 5-1 to other devices in the network. Send a beacon and include it according to the beacon.
  • the parameter, the control transceiver module 5-1 receives the information transmitted by the beacon receiving device when it is required to receive the information, and/or transmits the information to the beacon receiving device when the information needs to be transmitted.
  • the embodiment of the invention provides a short-distance communication device, which can simultaneously communicate based on the beacon mode and the non-beacon mode, and solves the fundamental contradiction that the beacon network and the non-beacon network cannot coexist, so the short-distance communication is adopted.
  • the device can simultaneously construct a beacon network and a non-beacon network in one WPAN.
  • FIG. 6 is a schematic structural diagram of a fourth embodiment of a short-range communication device according to an embodiment of the present invention.
  • the short-range communication device has the following modules: request module 6-1, transceiver module 6-2, and beacon module 6-3.
  • the requesting module 6-1 is configured to send, by the transceiver module 6-2, an information acquisition request to a device that communicates in a non-beacon manner, and control the transceiver module 6-2 to receive information sent by the requested device according to the request;
  • 2 is used for information interaction with other devices;
  • the beacon module 6-3 is configured to periodically send a beacon to other devices in the network through the transceiver module 6-2, and control the transceiver module 6 according to parameters included in the beacon.
  • Send or receive information when it needs to receive or send information.
  • the beacon module 6-3 of the short-range communication device periodically transmits a beacon, which may include superframe parameters of the short-range communication device.
  • Other devices that communicate in a beacon manner synchronize with the device by listening to the beacon of the short-range communication device.
  • the transceiver module 6-2 of the short-range communication device transmits and/or receives information with the synchronized device. Therefore, the short-range communication device can communicate as a coordinator with other non-coordinator devices communicating in a beacon manner based on a beacon manner to construct a beacon network.
  • the request module 6-1 of the short-range communication device transmits an information acquisition request to the coordinator who communicates in a non-beacon manner through the transceiver module 6-2.
  • the coordinator receiving the request transmits information to the short-range communication device when it is determined that there is information in the device that needs to be transmitted to the short-range communication device.
  • the requesting module 6-1 controls the transceiver module 6-2 to receive information from the coordinator. Therefore, the short-range communication device can communicate as a non-coordinator with other coordinators based on non-beacons to construct a non-beacon network.
  • the short-range communication device can communicate based on the beacon mode or the non-beacon mode, and construct the beacon network and the non-beacon network, so that the beacon network and the non-beacon network exist simultaneously.
  • a WPAN it can meet the needs of different applications at the same time, and can make the information of the beacon network and the non-beacon network interoperable.
  • the short-range communication device may further include a demand processing module 6-4.
  • the demand processing module 6-4 receives the information acquisition request sent by the other device through the transceiver module 6-2.
  • the control transceiver module 6-2 transmits the information to the device that sends the request. Therefore, when the demand processing module 6-4 is provided, the short-range communication device can serve as a coordinator for communication in a non-beacon manner, and more flexibly expand the non-beacon network portion of the WPAN.
  • the short-range communication device may further comprise a listening module 6-5.
  • the monitoring module 6-5 is configured to listen to the beacon sent by the beacon transmitting device in the network, and control the transceiver module 6-2 to receive the information sent by the beacon transmitting device when the information needs to be received according to the parameters included in the monitored beacon. , and/or send information to the beacon transmitting device when the information needs to be sent.
  • the beacon module 6-3 of the short-range communication device can also set the parameters contained in the transmitted beacon, or obtain the same from the superframe parameters of other beacon transmitting devices in the network.
  • the superframe parameter sets its own superframe parameters.
  • the beacon of the beacon device directly communicating with the network element may be monitored, or the beacon module 6-3 may send a request to the device adjacent thereto through the transceiver module 6-2 to obtain a superframe parameter.
  • actively sending a superframe parameter to the short-range communication device for the neighboring device If there is no superframe parameter in the neighboring device of the short-range communication device, the neighboring device requests the superframe parameter from other devices in the network.
  • the beacon module 6-3 of the short-range communication device may further comprise a storage function for saving superframe parameters in the monitored beacon.
  • the beacon module 6-3 may control the transceiver module 6-2 to send the saved superframe parameter to the device that sends the request, or the beacon module 6-3 may actively store it.
  • the superframe parameters are sent by the transceiver module 6-2 to other devices within the communication range of the short-range communication device.
  • the beacon module 6-3 can also avoid communication conflicts according to the saved superframe parameters.
  • the beacon module 6-3 can control the time when the transceiver module 6-2 transmits the beacon in the coordinator synchronized with the short-range communication device according to the saved superframe parameter. , Do not Receiving information acquisition requests sent by other devices, and not sending information acquisition requests to other devices and not interacting with devices based on non-beacon communication methods, so as to avoid non-beacons at the time when the coordinator periodically transmits beacons. Communicate with other devices.
  • the beacon module 6-3 may also control the transceiver module 6-2 to transmit or receive information when the short-range communication device transmits the beacon and the other device in the device and the beacon network according to the saved superframe parameter.
  • the information acquisition request sent by other devices is not received, the information acquisition request is not sent to other devices, and the information is not exchanged with the device based on the non-beacon communication mode, so as to prevent the short-range communication device from simultaneously Beacon mode and non-beacon mode communication.
  • FIG. 7 is a schematic diagram of a first embodiment of a wireless personal area network according to an embodiment of the present invention.
  • an embodiment of the present invention provides a wireless personal area network, including: a device 7-1 that simultaneously communicates based on a beacon mode and a non-beacon mode.
  • the device 7-1 that simultaneously communicates based on the beacon mode and the non-beacon mode is configured to listen to a beacon transmitted by at least the device 7-2 capable of communicating based on the beacon mode, and receive information according to parameters included in the beacon.
  • the wireless personal area network provided by the embodiment of the present invention can adapt to different applications through a device capable of working in a beacon manner and a non-beacon manner, so that applications that need to communicate based on beacons and those that need to communicate based on non-beacons are required. Applications can be met simultaneously in a wireless personal area network and can achieve better operational status.
  • FIG. 8 is a schematic diagram of a second embodiment of a wireless personal area network in an embodiment of the present invention.
  • a WPAN that accommodates both the beacon network and the non-beacon network can be constructed.
  • a circle represents a device that periodically transmits a beacon
  • a rectangle represents a device that transmits a beacon aperiodically.
  • the device 8-1 is a coordinator that communicates in a beacon manner, and periodically transmits a beacon.
  • Device 8-3 is a non-coordinator that communicates by beacon, and can also act as Coordinator of beacon mode communication.
  • Device 8-4 and device 8-5 are non-coordinators that communicate in a non-beacon manner, and can also act as a coordinator for communication in a non-beacon manner.
  • the device 8-2 is the first short-range communication device in the embodiment of the present invention, and communicates with the device 8-1 based on the beacon mode as a non-coordinator, and also acts as a coordinator and device 8-4 and/or device 8-5. Communication based on non-beacons.
  • the device 8-1 periodically transmits a beacon as a coordinator that communicates in a beacon manner, and the beacon may include a superframe parameter of the device 8-1.
  • the device 8- 3 communicates in a beacon manner, and listens to the beacon transmitted by the device 8-1 and synchronizes with the device 8-1.
  • the device 8-2 also listens to the beacon transmitted by the device 8-1, and synchronizes with the device 8-1 through the beacon, that is, the device 8-1 communicates with the device 8-2 based on the beacon.
  • Device 8-1 and device 8-2 and/or device 8- 3 form a beacon network that enables beacon-based communication applications to achieve better operational status.
  • Device 8-4 and device 8-5 are non-beacon communication devices, and device 8-4 and/or device 8-5 sends an inquiry to device 8-2 and requests information to be sent to itself.
  • the device 8-2 receives the inquiry of the device 8-4 and/or the device 8-5, and transmits information to the device 8-2 when it determines that there is information to be transmitted to the device 8-4 and/or the device 8-5.
  • Device 8-2 can communicate with device 8-4 and/or device 8-5 based on a non-beacon mode.
  • Device 8-2 forms a non-beacon network with devices 8-4 and/or devices 8-5, which enables applications based on non-beacon communication to achieve better operational status.
  • the beacon network and the non-beacon network are accommodated at the same time, and different applications can be adapted, so that different applications respectively achieve a better operational state.
  • the information can be intercommunicated between the beacon network and the non-beacon network included in the WPAN as shown in FIG.
  • the device 8-2 synchronizes with the device 8-1 by the beacon of the listening device 8-1, after which the device 8-1 can transmit the information to the device 8-2; and the device 8-2 receives the device 8- 4 and After the request of the device 8-5, the information can be sent to the device 8-4 and/or the device 8-5 to implement the transfer of information between the beacon network and the non-beacon network within the WPAN.
  • the device 8-4 and/or the device 8-5 sends information to the device 8-2.
  • the device 8-2 can send the information to the device 8-1 according to the superframe parameter of the device 8-1. , thereby realizing the transmission of information between the non-beacon network and the beacon network in the WPAN.
  • the device 8-2 can also save the superframe parameters of the monitored device 8-1.
  • the device 8-2 can avoid conflicts when communicating in a non-beacon manner according to the superframe parameters of the saved device 8-1, that is, the device 8-2 can avoid beacons at the same time according to the saved superframe parameters.
  • the non-beacon mode communicates, and avoids communicating in a non-beacon manner at the time the device 8-1 issues a beacon.
  • the device 8-2 may not save the superframe parameters of the device 8-1, but in the case of saving, the collision in the communication is reduced, and the network efficiency is improved.
  • the device 8-2 can also send a query to other non-beacon-based communication coordinators in the network as non-coordinator based on non-beacon communication, and request The information sent to yourself.
  • the coordinator receiving the request determines that there is information to be sent to the device 8-2, it transmits information to the device 8-2, and the device 8-2 receives the information. Therefore, the device 8- 2 can also be used as a non-coordinator that communicates in a non-beacon manner, and more flexibly expands the non-beacon network portion within the WPAN.
  • the device 8-2 may also periodically transmit a beacon, which may include the superframe parameters of the device 8-2.
  • a beacon which may include the superframe parameters of the device 8-2.
  • other beacon-based communication devices can communicate with the device 8-2 based on the beacon mode as a non-coordinator, and the beacon network portion is more flexibly expanded.
  • FIG. 9 is a schematic diagram of a third embodiment of a wireless personal area network in an embodiment of the present invention. As shown in FIG. 9, an embodiment of the present invention further provides a wireless personal area network, including: a device 9-1 that simultaneously communicates based on a beacon mode and a non-beacon mode.
  • the device 9-1 that simultaneously communicates based on the beacon mode and the non-beacon mode is configured to send a beacon to at least the beacon-based communication-enabled device 9-2 in the network, and according to parameters included in the beacon and at least
  • the device 9-2 capable of communicating based on the beacon mode performs information exchange; and transmits an information acquisition request to the device 9-3 capable of communicating based on at least the non-beacon mode in the network, and receives the device capable of communicating based on at least the non-beacon mode 9-3 Information sent according to the request.
  • FIG. 10 is a schematic diagram of a fourth implementation manner of a wireless personal area network according to an embodiment of the present invention. As shown in FIG. 10, based on the fourth embodiment of the short-range communication device of the present invention, a WPAN that accommodates both the beacon network and the non-beacon network can be constructed. In the WPAN shown in FIG. 10,
  • a circle represents a device that periodically transmits a beacon
  • a rectangle represents a device that transmits a beacon aperiodically.
  • Device 10-1 is a coordinator based on non-beacon mode communication.
  • the device 10-3 is a non-coordinator that communicates in a non-beacon manner, and can also act as a coordinator in a non-beacon manner.
  • Device 10-4 and device 10-5 are non-coordinators that communicate in a beacon manner, and can also act as a coordinator for communication in a non-beacon manner.
  • the device 10-2 is a second short-range communication device in the embodiment of the present invention, which periodically transmits a beacon as a coordinator, communicates with the device 10-4 and/or the device 10-5 based on the beacon mode, and acts as a non-coordination
  • the device 10-1 communicates with the device 10-1 based on the non-beacon mode.
  • the device 10-1 acts as a coordinator who communicates in a non-beacon manner.
  • Device 10-2 and/or device 10-3 sends an inquiry to device 10-1 and requests information to be sent to itself. After receiving the request, the device 10-1 sends the information to the device 10-2 and/or the device 10-3 upon determining that there is information that needs to be sent to the device 10-2 and/or the device 10-3.
  • Device 10-1 and device 10-2 and/or device 10-3 form a non-beacon network, which enables applications based on non-beacon communication to achieve better operational status.
  • the device 10-2 also periodically transmits a beacon as a coordinator that communicates in a beacon manner, and the beacon may include a superframe parameter of the device 10-2.
  • Device 10-4 and/or device 10-5 listen to the beacon of device 10-2 and synchronize with device 10-2 accordingly. After the synchronization, the device 10-2 transmits and receives information with the device 10-4 and/or the device 10-5 in the case where the information needs to be transmitted.
  • the device 10-2 forms a beacon network with the device 10-4 and/or the device 10-5, which enables the application based on the beacon communication to achieve a better operational state.
  • the beacon network and the non-beacon network are accommodated at the same time, and can be adapted to different applications, so that different applications respectively achieve a better operational state.
  • the information can be intercommunicated between the beacon network and the non-beacon network included in the WPAN as shown in FIG.
  • the device 10-2 sends an inquiry to the device 10-1 and requests information transmitted to itself, and the device 10-1 transmits the information to the device 10-2 when it is determined that there is information that the device 10-2 should be issued.
  • the device 10-2 may send the information to the device 10-4 and/or the device 10-5 that has been synchronized with it according to the superframe of the device 10-2, thereby realizing the intra-i3 ⁇ 4 ⁇ 3 ⁇ 4 WPAN , the transmission of information between non-beacon networks and beacon networks.
  • device 10-4 and/or device 10-5 can transmit information to device 10-2 as specified by the superframe parameters of device 10-2. After receiving the information, the device 10-2 can send the information to the device 10-1, thereby realizing the transmission of the information between the beacon network and the non-beacon network within the WPAN.
  • the device 10-2 may also serve as a coordinator based on non-beacon communication, and receive an inquiry from other non-coordinated communication non-coordinators in the network.
  • the device 10-2 can also be used as a coordinator for communication in a non-beacon manner, and more flexibly expands a portion of the non-beacon network in the WPAN.
  • FIG. 11 is a schematic diagram of a fifth implementation manner of a wireless personal area network according to an embodiment of the present invention.
  • a WPAN that accommodates both the beacon network and the non-beacon network can be constructed.
  • a circle represents a device that periodically transmits a beacon
  • a rectangle represents a device that transmits a beacon aperiodically.
  • the device 11-1 periodically transmits a beacon as a coordinator that communicates in a beacon manner, and the beacon may include a superframe parameter of the device 11-1.
  • the device 11-3 is a non-coordinator that communicates in a beacon manner, and can also serve as a coordinator for communicating in a beacon manner.
  • Device 11-4 is a non-coordinator that communicates in a non-beacon manner, and can also act as a coordinator for communication in a non-beacon manner.
  • Devices 11-6 and devices 11-7 are non-coordinators that communicate in a beacon manner, and can also act as coordinators for communicating in a beacon manner.
  • the device 11-2 is the first type of short-range communication device in the embodiment of the present invention, which communicates with the device 11-1 based on the beacon mode as a non-coordinator, and communicates with the device 11-4 based on the non-beacon mode as a coordinator.
  • the device 11-5 is a second short-range communication device in the embodiment of the present invention, and can periodically transmit a beacon as a coordinator, and communicate with the device 11-6 and/or the device 11-7 based on a beacon manner.
  • the device 11-2 and the device 11-5 may communicate based on a beacon, or may also communicate based on a non-beacon.
  • the device 11-2 listens to the beacon transmitted by the device 11-5, and synchronizes with the device 11-5 to perform information interaction.
  • the device 11-5 When communicating based on the non-beacon mode, the device 11-5 sends an inquiry to the device 11-2 and requests information sent to itself, and after receiving the request, the device 11-2 determines When there is information that needs to be transmitted to the device 11-5, the information is transmitted to the device 11-5.
  • the device 11-1 acts as a coordinator for communicating in a beacon manner, and periodically transmits a beacon, which may include the superframe parameter of the device 11-1.
  • Device 11-2 and/or device 11-3 listen to the beacon sent by device 11-1 and synchronize with device 11-1 accordingly. When information needs to be transmitted, the device 11-1 sends and receives information according to the superframe parameters contained in its beacon with the device 11-2 and/or the device 11-3.
  • Device 11-5 also acts as a coordinator for beacon communication, periodically transmitting beacons containing superframe parameters.
  • the device 11-2 and/or the device 11-6 and/or the device 11-7 listen to the beacon transmitted by the device 11-5 and synchronize with the device 11-5 accordingly, and when the information needs to be transmitted, the device 11-5 according to it
  • the superframe structure defined by the beacon transmits and receives information with the device 11-2 and/or the device 11-6 and/or the device 11-7.
  • Device 11-1, device 11-2, device 11-3, device 11-5, device 11-6, and device 11-7 form a beacon network.
  • the device 11-2 can also function as a non-beacon. Coordinator of communication.
  • the device 11-4 sends an inquiry to the device 11-2 and requests information to be sent to itself. After receiving the request, the device 11-2 transmits the information to the device 11-4 when it is determined that there is information to be sent to the device 11-4.
  • Device 11-2 and device 11-4 form a non-beacon network, which enables applications based on non-beacon communication to achieve better operation.
  • the beacon network and the non-beacon network are accommodated at the same time, and can be adapted to different applications, so that different applications respectively achieve better operating states.
  • the device 11-2 may not listen to the beacon of the device 11-5, but as the coordinator and the device 11-5 based on the non-trust. Standard mode communication.
  • device 11-1, device 11-2, and device 11-3 form a beacon network
  • device 11-5, device 11-6, and device 17-1 also form a beacon network.
  • the device 11-5 can also act as a non-coordinator for non-beacon mode communication.
  • the device 11-5 sends an inquiry to the device 11-2 and requests information to be sent to itself. After receiving the request, the device 11-2 transmits the information to the device 11-5 when it is determined that there is information to be transmitted to the device 11-5.
  • the device 11-2 forms a non-beacon network with the device 11-4 and the device 11-5, so that the application based on the non-beacon communication can achieve a better operational state. Therefore, according to the network construction manner, the beacon network and the non-beacon network can be accommodated in the WPAN as shown in FIG. 11, and can be adapted to different applications, so that different applications respectively achieve a better operational state.
  • the information can be interworked between the beacon network and the non-beacon network included in the WPAN as shown in FIG.
  • the device 11-2 performs information transmission and reception with the device 11-1 by synchronizing with the device 11-1, and the device 11-2 can also perform information transmission with the device 11-5 by synchronizing with the device 11-5.
  • the device 11-2 can receive the request of the device 11-4 and transmit the information obtained from the beacon network to the device 11-4, thereby realizing the transfer of information between the beacon network and the non-beacon network within the WPAN.
  • the device 11-4 may send information to the device 11-2.
  • the device 11-2 may send the received information to the device according to the superframe parameters of the device 11-1 and/or the device 11-5.
  • Device 11-1 and/or device 11-5 thereby realizing the transfer of information between the non-beacon network and the beacon network within the WPAN.
  • the interworking between the beacon network and the non-beacon network in the WPAN can also be realized.
  • the device 11-1 can transmit information to the device 11-2 according to the specification of its superframe parameters. After receiving the information, the device 11-2 transmits the information to the device 11-4 and/or the device 11-5 when the device 11-4 and/or the device 11-5 send a request. Thereby, in the WPAN, the transmission of information between the beacon network and the non-beacon network is realized.
  • the device 11-5 can also send the information acquired from the device 11-2 to the device 11-6 and/or the device 11-7 according to the provisions of its superframe parameters, thereby implementing the non-beacon network and the beacon in the WPAN.
  • the device 11-5 may request the device 11-2 to obtain the superframe of the device 11-1. parameter. After receiving the request of the device 11-5, the device 11-2 may send the requested superframe parameter of the device 11-1 to the device 11-1, or listen to the beacon of the device 11-1, and include the superframe parameter included therein. Passed to device 11-5. In the case where the device 11-2 holds the superframe parameter of the device 11-1, the device 11-5 may directly transmit the superframe parameter of the requested device 11-1 to the device 11-2.
  • FIG. 12 is a flowchart of a first embodiment of a short-range communication method according to an embodiment of the present invention. As shown in FIG. 12, an embodiment of the present invention provides a short-distance communication method, including:
  • Step 1201 Listening to a beacon sent by a coordinator based on beacon communication
  • Step 1202 Receive, according to parameters included in the beacon, information sent by the coordinator when the information needs to be received, and/or send the information to the coordinator when the information needs to be sent;
  • Step 1203 When the device is in the working state, receive the information acquisition request sent by the other device at any time, and send the information directly to the device that sends the request when determining that there is information that needs to be sent to the device that sends the request.
  • the short-distance communication method provided by the embodiment of the present invention can perform information interaction between a device capable of communicating in a beacon manner and a non-beacon manner in a network, and a device in a beacon network and a non-beacon network. It is possible to simultaneously satisfy the needs of the beacon network and the requirements of the non-beacon network in a wireless personal area network.
  • Figure 13 is a flow chart showing a second embodiment of the short-range communication method in the embodiment of the present invention. As shown in FIG. 13, an embodiment of the present invention further provides a short-distance communication method, including:
  • Step 1301 Send a beacon to other devices in the network, and perform information interaction with other devices based on the beacon communication according to parameters included in the beacon;
  • Step 1302 When it is in a working state and needs to obtain information, directly send an information acquisition request to other devices in the network, and receive information sent by the requested device according to the request.
  • the short-distance communication method provided by the embodiment of the present invention can perform information interaction between a device capable of communicating in a beacon manner and a non-beacon manner in a network, and a device in a beacon network and a non-beacon network. It is possible to simultaneously satisfy the needs of the beacon network and the requirements of the non-beacon network in a wireless personal area network.
  • FIG. 14 is a schematic diagram of a first embodiment of adding a new device to a wireless personal area network in an embodiment of the present invention.
  • the first short-range communication device according to the embodiment of the present invention can establish a communication mode different from the original network when the new device joins the network.
  • the circle represents periodicity.
  • the device that sends the beacon the rectangle represents the device that sends the beacon aperiodically.
  • the original network is a beacon network formed by the device 14-1 and the device 14-2.
  • the device 14-1 periodically transmits a beacon, and the beacon may include a superframe parameter of the device 14-1.
  • the device 14-2 is a non-coordinator that communicates in a beacon manner, and can also serve as a coordinator for communicating in a beacon manner.
  • Device 14-2 and device 14-1 may communicate in accordance with the superframe parameters of device 14-1 or may communicate in accordance with the superframe parameters of device 14-2.
  • a new device 14-3 needs to be added to the beacon network.
  • the new device 14-3 needs to communicate in a non-beacon manner, for example, because the density of devices in the network is too large or the device 14-3 needs to carry an application that needs to communicate based on non-beacons.
  • the device 14-3 is the first short-range communication device in the embodiment of the present invention.
  • the device 14-3 listens to the beacon of the device 14-1 and synchronizes with the device 14-1 accordingly. When the information needs to be transmitted, the device 14-1 and the device 14-3 communicate based on the beacon mode in accordance with the superframe parameters of the device 14-1.
  • the device 14-3 may receive a request from the non-coordinator based on the non-beacon mode communication, and when determining that there is information that needs to be sent to the device, This information is sent to the device that sent the request.
  • the device 14-3 can avoid collisions when communicating in a non-beacon manner according to the saved superframe parameters. That is to say, the device 14-3 can avoid communicating in a beacon manner and a non-beacon manner at a certain time according to the saved superframe parameters, and avoid communicating in a non-beacon manner at the time when the device 14-3 issues a beacon.
  • the device 14-3 may not save the superframe ⁇ : of the device 14-1, but in the case of ⁇ , it will reduce collisions in communication and improve network efficiency.
  • the second short-range communication device in the embodiment of the present invention may also establish a communication mode different from the original network when the new device joins the network.
  • device 14-1 communicates with device 14-2 based on beacon.
  • the new device 14-3 needs to join the network and communicate in a non-beacon manner.
  • the device 14-1 is a second short-range communication device in the embodiment of the present invention, and can communicate with the device 14-2 in a beacon manner, and establish non-beacon communication with the device 14-3.
  • the device 14-1 receives the request from the device 14-3, and transmits the information to the device 14-3 when it is determined that there is information to be transmitted to the device 14-3.
  • Device 14-1 and device 14-2 still communicate in a beacon manner.
  • New devices are now added to the beacon network, and new devices communicate based on non-beacons.
  • Figure 15 is a schematic diagram showing a second embodiment of adding a new device to a wireless personal area network in an embodiment of the present invention.
  • the second short-range communication device in the embodiment of the present invention can establish a communication mode different from the original network when the new device joins the network.
  • the circle represents the device that periodically sends the beacon
  • the rectangle represents the device that sends the beacon aperiodically.
  • the original network is a non-beacon network formed by device 15-1 and device 15-2.
  • the non-beacon network can use device 15-1 as the coordinator or device 15-2 as the coordinator.
  • new devices 15-3 need to be added to the non-beacon network.
  • Devices 15-3 need to communicate in a beaconed manner, for example because devices 15-3 need to carry applications that need to communicate based on beacons.
  • the device 15-3 is a second short-range communication device in the embodiment of the present invention.
  • the device 15-3 periodically transmits a beacon, which may include the superframe parameters of the device 15-3.
  • the beacon-based application carried by the device 15-3 can be synchronized with the device 15-3 through the beacon.
  • the device 15-3 can define the superframe parameters by itself or obtain the superframe parameters from the network. If a consistent superframe parameter is not required in the WPAN, device 15-3 can define the superframe parameter itself. If a consistent superframe parameter is required in the WPAN, the device needs to obtain the superframe parameters from the network.
  • device 15-3 may actively request or passively receive its saved superframe parameters from device 15-1.
  • the superframe parameter saved by the device 15-1 may be preset by the device 15-1 when the network is established, or may be obtained by the device 15-1 from other devices in the network by the following method. If the device 15- 1 communicates directly with other devices that communicate in a beacon manner, the superframe parameters of the device can be obtained by listening; if the device 15-1 communicates directly with other devices communicating in a non-beacon manner, and the device A set of superframe parameters is stored, and the device 15-1 can request the superframe parameters from the device.
  • the device 15-3 can only set a set of parameters by itself. In order to avoid inconsistencies with the superframe parameters set by other devices in the network, the device 15-3 can query whether other devices in the network have set superframe parameters, such as by broadcasting a query. If the device in the network has set the superframe parameter, the device 15-3 sets according to the existing superframe parameter. If there is no such setting in the network, the device 15-3 sets the superframe parameters by itself.
  • the first short-range communication device in the embodiment of the present invention may also establish a communication mode different from the original network when the new device joins the network.
  • the original network is still a non-beacon network formed by device 15-1 and device 15-2.
  • the non-beacon network can use device 15-1 as the coordinator or device 15-2 as the coordinator.
  • the device 15-1 is the first short-range communication device in the embodiment of the present invention.
  • the device 15-3 periodically transmits a beacon, which may include the superframe parameters of the device 15-3.
  • Device 15-1 Monitors the beacons sent by 15-32 and is synchronized with devices 15-3 accordingly.
  • the device 15-1 transmits and receives information according to the superframe parameters of the device 15-3.
  • communication between device 15- 1 and device 15- 2 is still non-beacon mode.
  • the device 15-3 sets the superframe parameter by the above superframe parameter setting method.
  • a new device can be added to the non-beacon network, and the new device communicates based on the beacon.
  • FIG. 16 is a schematic diagram of a first implementation manner of a device change communication method in a wireless personal area network according to an embodiment of the present invention.
  • a new communication mode can be established by changing the communication mode of the original device in the network.
  • a circle represents a device that periodically transmits a beacon
  • a rectangle represents a device that transmits a beacon aperiodically.
  • devices communicate by beacon.
  • the device 16-1, the device 16-2, and the device 16-4 are devices that periodically send beacons.
  • the device 16-3 may be a device that periodically sends a beacon, or a device that sends a beacon periodically.
  • 5 is a device that sends beacons aperiodically.
  • device 16-1 and device 16-2 communicate directly in a beacon manner.
  • Device 16-2 needs to establish a non-beacon communication mode and no longer periodically transmit beacons.
  • the device 16-2 and the device 16-1 communicate based on the beacon mode according to the superframe parameters of the device 16-1.
  • device 16-2 may notify the device with which it is in direct communication that it has switched to non-beacon mode communication.
  • device 16-4 receives the pass
  • the device 16-4 can be converted to non-beacon mode communication, or can still keep the beacon periodically transmitting in a beacon manner.
  • the device 16-5 is a device that transmits a beacon aperiodically, after receiving the notification, it can be converted into a non-beacon mode to communicate with the device 16-2.
  • the second short-distance communication device in the embodiment of the present invention can also establish a new communication mode by changing the communication mode of the original device in the network.
  • the original network is a beacon network
  • the device 16-2 needs to change its communication mode to non-beacon mode.
  • the device 16-2 sends an inquiry to the device 16-1 and requests information to be sent to itself, and after receiving the request, the device 16-1, after determining that there is information to be sent to the device 16-2, to the device 16-2 send Message.
  • the device 16-1 is a second embodiment of the short-range communication device in the present invention. Communication between device 16-1 and device 16-3 is still beaconed.
  • the device 16-2 can notify the neighboring devices of the change in the communication mode, and the adjacent device 16-4 and the device 16-5 can select the switching communication mode.
  • FIG. 17 is a schematic diagram of a second implementation manner of a device change communication mode in a wireless personal area network according to an embodiment of the present invention.
  • a new communication mode can be established by changing the communication mode of the original device in the network.
  • a circle represents a device that periodically transmits a beacon
  • a rectangle represents a device that transmits a beacon aperiodically.
  • the devices communicate in a non-beacon manner, and the beacons are not sent periodically.
  • device 17-1 and device 17-2 communicate directly in a non-beacon manner.
  • Device 17-2 needs to establish a beacon communication method.
  • the device 17-2 starts to periodically transmit the beacon and notifies the device with which it communicates that it has changed the communication mode to start communication based on the beacon.
  • Device 17-4 and device 17-5 and device 17-2 can communicate based on beacons.
  • device 17-4 and device 17-5 may choose to convert to a device that periodically transmits a beacon, or a device that still maintains a beacon for aperiodic transmission.
  • Device 17-3 is still communicating with device 17-1 based on a non-beacon mode.
  • the device 17-2 After converting the device to the device that periodically transmits the beacon, the device 17-2 can obtain the superframe parameter from the device 17-1, and can set the superframe parameter by itself if it cannot be acquired.
  • the device 17-2 may send the device 17-1 Actively requesting or passively receiving its saved superframe parameters from device 17-1.
  • the superframe parameter saved by the device 17-1 may be preset by the device 17-1 when the network is established, or may be obtained by the device 17-1 from other devices in the network by the following method. If the device 17-1 communicates directly with other devices that communicate in a beacon manner, the superframe parameters of the device can be obtained by monitoring; if the device 17-1 communicates directly with other devices that communicate in a non-beacon manner, for example, Device 17-3, and the device maintains a set of superframe parameters, and device 17-1 may request the device to obtain superframe parameters.
  • the device 17-2 can only set a set of parameters by itself. In order to avoid inconsistencies with the superframe parameters set by other devices in the network, the device 17-2 can query whether other devices in the network have set superframe parameters, such as by broadcasting a query. If the device in the network has set the superframe parameter, the device 17-2 sets according to the existing superframe parameters. If there is no such setting in the network, the device 17-2 sets the superframe parameter by itself.
  • the first short-distance communication device in the embodiment of the present invention can also establish a new communication mode by changing the communication mode of the original device in the network.
  • the devices still communicate in a non-beacon manner, and the beacons are not sent periodically.
  • device 17-1 and device 17-2 communicate directly in a non-beacon manner.
  • Device 17-2 needs to establish a beacon communication method.
  • the device 17-2 starts to periodically transmit the beacon, and notifies the device with which it communicates that it has changed the communication mode to start communication based on the beacon.
  • device 17-4 and device 17-5 may choose to convert to a device that periodically transmits a beacon, or a device that still maintains a beacon periodically.
  • the device 17-1 listens to the beacon of the device 17-2 and synchronizes it accordingly.
  • Device 17-3 is still communicating with device 17-1 based on a non-beacon mode.
  • the device 17-2 sets the superframe parameter by the superframe parameter setting method described above.
  • the devices in the non-beacon network establish communication in the beacon mode by changing the communication manner.

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  • Mobile Radio Communication Systems (AREA)

Abstract

Cette invention se rapporte à un dispositif de communication à courte distance. Un module de surveillance est utilisé de manière à surveiller la balise envoyée par un dispositif d'envoi de balise dans un réseau personnel sans fil (WPAN) et à commander un module émetteur-récepteur de façon à recevoir les informations envoyées par le dispositif d'envoi de balise selon les paramètres dans la balise surveillée et/ou à envoyer les informations au dispositif d'envoi de balise. Le module émetteur-récepteur est utilisé de manière à échanger des informations avec un autre dispositif dans le réseau; un module de traitement d’exigences est utilisé de manière à recevoir la demande d'acquisition d’informations envoyée par l'autre dispositif dans le réseau à tout moment par l'intermédiaire du module émetteur-récepteur, lorsque le dispositif de communication à courte distance se trouve dans l'état de fonctionnement et à commander le module émetteur-récepteur de façon à envoyer directement les informations au dispositif qui envoie la demande quand on détermine que les informations correspondantes existent dans le dispositif. Un autre type de dispositif de communication à courte distance, un réseau de communication à courte distance et un procédé sont fournis. De tels dispositifs de communication permettent à un réseau de balises et à un réseau qui n'est pas un réseau de balises de coexister dans un WPAN et de s'adapter aux différentes applications.
PCT/CN2009/072077 2008-07-11 2009-06-01 Procédé de communication à courte distance, dispositif et réseau Ceased WO2010003337A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810068476.3 2008-07-11
CN 200810068476 CN101626325B (zh) 2008-07-11 2008-07-11 短距离通信的方法、设备及网络

Publications (1)

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WO2010003337A1 true WO2010003337A1 (fr) 2010-01-14

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CN (1) CN101626325B (fr)
WO (1) WO2010003337A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002063806A2 (fr) * 2001-02-07 2002-08-15 Xtremespectrum, Inc. Systeme, procede, et produit de programme informatique permettant de partager une largeur de bande dans un reseau local personnel sans fil ou dans un reseau local sans fil
US20030140296A1 (en) * 2002-01-22 2003-07-24 Odman Knut T. Method of improving system performance in a wireless network by making requests without acknowledgement
CN1551546A (zh) * 2003-05-13 2004-12-01 ���ǵ�����ʽ���� 高速率无线个人区域网中的信道时间分配方法
CN1913383A (zh) * 2005-07-20 2007-02-14 Lg电子株式会社 用于从短距离通信终端获得应用数据的设备和方法
CN1937437A (zh) * 2005-09-21 2007-03-28 华为技术有限公司 短距离无线通信方法及其通信终端

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002063806A2 (fr) * 2001-02-07 2002-08-15 Xtremespectrum, Inc. Systeme, procede, et produit de programme informatique permettant de partager une largeur de bande dans un reseau local personnel sans fil ou dans un reseau local sans fil
US20030140296A1 (en) * 2002-01-22 2003-07-24 Odman Knut T. Method of improving system performance in a wireless network by making requests without acknowledgement
CN1551546A (zh) * 2003-05-13 2004-12-01 ���ǵ�����ʽ���� 高速率无线个人区域网中的信道时间分配方法
CN1913383A (zh) * 2005-07-20 2007-02-14 Lg电子株式会社 用于从短距离通信终端获得应用数据的设备和方法
CN1937437A (zh) * 2005-09-21 2007-03-28 华为技术有限公司 短距离无线通信方法及其通信终端

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CN101626325A (zh) 2010-01-13
CN101626325B (zh) 2013-01-30

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