WO2016131196A1 - 一种用于在邻近感知网络中进行数据传输的方法及相关设备 - Google Patents

一种用于在邻近感知网络中进行数据传输的方法及相关设备 Download PDF

Info

Publication number
WO2016131196A1
WO2016131196A1 PCT/CN2015/073233 CN2015073233W WO2016131196A1 WO 2016131196 A1 WO2016131196 A1 WO 2016131196A1 CN 2015073233 W CN2015073233 W CN 2015073233W WO 2016131196 A1 WO2016131196 A1 WO 2016131196A1
Authority
WO
WIPO (PCT)
Prior art keywords
service
window
service group
notification
sent
Prior art date
Application number
PCT/CN2015/073233
Other languages
English (en)
French (fr)
Inventor
陈济
方平
Original Assignee
华为技术有限公司
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.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2015/073233 priority Critical patent/WO2016131196A1/zh
Priority to CN201580023415.3A priority patent/CN106465130B/zh
Publication of WO2016131196A1 publication Critical patent/WO2016131196A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of wireless network technologies, and in particular, to a method and related device for data transmission in a proximity sensing network.
  • Wi-Fi Wireless-Fidelity
  • the basic standard for Wi-Fi technology is the 802.11 protocol developed by the IEEE (Institute of Electrical and Electronics Engineers).
  • a common structure of the Wi-Fi technology includes an access point (AP) and at least one other device.
  • the access point AP periodically announces the beacon frame to other devices to announce the existence of the AP.
  • the device knows the existence of the AP by actively sending a Probe Request frame and receiving a Probe Response frame or passively receiving the beacon frame, and then interacting with the AP to join the AP's network. Due to the limited network structure and data transmission in the 802.11 protocol, it is difficult for a device that is not connected to an AP to perform service discovery. Therefore, a new standard is established based on 802.11 to achieve the service without requiring association.
  • NAN Neighbor Awareness Networking
  • the NAN function is that all the devices participating in the NAN are synchronized without an access point, and the DW (Discovery Window) of the NAN is agreed, and the maintenance of the NAN is performed in the DW.
  • Service discovery work After the service discovery work is completed, the related devices in the NAN can establish a connection and perform data transmission according to the information exchanged in the service discovery.
  • the NAN is fixed on the channel 6, and there is a discovery window every 512 ms, and the duration of the discovery window is 16 ms.
  • NAN defines the synchronization mechanism of the start time and end time of DW. In order to achieve and maintain this synchronization mechanism, each device in NAN needs to assume equal responsibility.
  • All devices that have joined the NAN can perform service discovery in the discovery window. All devices in the discovery window are in the awake state, but the NAN only provides the discovery window and the service discovery work based on the discovery window, and the service discovery in the NAN. After that, there is no service defined. After discovering what to do so, the network resources of the existing NAN are not fully utilized, and other technologies such as Wi-Fi Direct or infrastructure network are used for connection and data transmission, resulting in inefficient data transmission and high power consumption.
  • the present invention provides a method and related device for data transmission in a proximity sensing network to improve data transmission efficiency and reduce power consumption.
  • a first aspect of the embodiments of the present invention provides a method for data transmission in a proximity sensing network, including:
  • the first device Establishing, by the first device, the service group with the at least one device that supports the same service, and agreeing, with the at least one device, a discovery window and a service window of the service group; the first device and the at least one The devices are all devices in the NAN;
  • the first device determines to send data to at least one target device in the service group and does not receive a wake-up notification sent by any one of the at least one device during channel contention, then the first The device sends a wakeup notification to the at least one device in the discovery window, so that the device in the sleep state of the at least one device switches to the awake state when the time arrives at the service window, so that the at least one device arrives
  • the service window is in an awake state, and the first device performs data transmission between the service window and the at least one target device in an awake state.
  • the awake notification includes a service group identifier
  • the sending, by the first device, the awake notification to the at least one device in the discovery window includes:
  • the service window includes a paging window and a transmission window, where the first device is located After the discovery window sends the wakeup notification to the at least one device, the method further includes:
  • the window receives data sent by the first device.
  • the first device and the The at least one device that the first device supports the same service establishes a service group, including:
  • the first device sends service advertisement information to other devices in the NAN, so that the other devices respectively confirm whether they support the same service with the first device according to the service advertisement information;
  • the first device establishes a service group with the at least one device according to the service request message sent by the at least one device.
  • the first device is in the discovery window Sending the wakeup notification by the at least one device includes:
  • the first device performs an encryption process on the wakeup notification
  • the first device sends the cryptographically processed wakeup notification to the at least one device.
  • a second aspect of the embodiments of the present invention provides a method for data transmission in a proximity sensing network, including:
  • the second device establishes a service group with the first device that supports the same service, and appoints a discovery window and a service window of the service group with the first device; the first device and the second device
  • the devices are all devices in the NAN;
  • the second device receives, in the discovery window, a wakeup notification sent only by the first device in the service group, where the wakeup notification is determined by the first device to be at least one of the service groups.
  • a target device sends data and does not receive a wakeup notification sent by any one of the other devices in the service group during channel contention, the first device is in the discovery window to the service group. Wake-up notification sent by other devices;
  • the second device arrives at the service window according to the wakeup notification sent by the first device At the time of waking up to perform data transmission in the service window.
  • the method further includes:
  • the second device When the second device does not receive the wakeup notification sent by the other device in the service group, the second device acquires the channel busyness in the discovery window, and the channel is busy. Degree includes the ratio of the working time of the channel to the discovery window;
  • the second device When the channel busyness exceeds a preset threshold, the second device is in an awake state when the service window is reached to perform data transmission in the service window.
  • the second device and the first device that supports the same service as the second device Establishing a business group includes:
  • the second device When the second device and the first device support the same service, the second device sends a service request message to the first device, so that the first device sends the message according to the service request message.
  • the second device joins the service group.
  • the service window includes a paging window and a transmission window
  • the second device is in an awake state when the user arrives at the service window to perform data transmission in the service window according to the wakeup notification sent by the first device, including:
  • the second device keeps an awake state in the transmission window according to the paging message sent by the first device, and receives data sent by the first device in the transmission window.
  • the service window includes a paging window and a transmission window
  • the second device is configured to arrive at the notification according to the wakeup notification sent by the first device
  • the business window is awake to perform data transmission in the business window, including:
  • the second device When the second device does not receive a paging message sent by another device in the service group in the paging window and determines that there is no data transmission to other devices in the service group, the second device is Reverting from the awake state to the sleep state upon reaching the transmission window.
  • a third aspect of the embodiments of the present invention provides a device for performing data transmission in a proximity sensing network, where the device is a first device, and the first device includes:
  • a service group establishing module configured to establish a service group with at least one device that supports the same service with the first device, and appoint a discovery window and a service window of the service group with the at least one device; the first device and The at least one device is a device in the NAN;
  • a notification sending module configured to: when the first device determines to send data to at least one target device in the service group and does not receive a wakeup notification sent by any one of the at least one device during channel contention And sending, in the discovery window, a wakeup notification to the at least one device, so that the device in the sleep state of the at least one device switches to the awake state when the time arrives at the service window, so that the at least one device is When the service window is reached, the device is in an awake state, and the first device performs data transmission between the service window and the at least one target device in the awake state.
  • the wake-up notification includes a service group identifier of the service group
  • the notification sending module sends the wakeup notification to the at least one device in the service group according to the service group identifier.
  • the service window includes a paging window and a transmission window
  • the apparatus further includes:
  • a message sending module configured to send, in the paging window in the service window, a paging message to the at least one target device, so that the at least one target device receives the paging message according to the paging message The data sent by the first device.
  • the service group establishing module includes:
  • the information sending unit is configured to send the service announcement information to the other devices in the proximity sensing network, so that the other devices respectively confirm whether they support the same service with the first device according to the service advertisement information;
  • An information receiving unit configured to receive a service request message separately sent by the at least one of the other devices that support the same service by the first device;
  • a service group establishing unit configured to establish a service group with the at least one device according to the service request message separately sent by the at least one device.
  • the notification sending module is further used for The wakeup notification is performed by an encryption process; the encrypted process wakeup notification is sent to the at least one device.
  • a fourth aspect of the embodiments of the present invention provides a device for performing data transmission in a proximity sensing network, where the device is a second device, and the second device includes:
  • a service group establishing module configured to establish a service group with a first device that supports the same service with the second device, and agree with the first device to a discovery window and a service window of the service group; the first device and The second device is a device in the NAN;
  • a notification receiving module configured to receive, in the discovery window, a wakeup notification sent only by the first device in the service group, where the wakeup notification is determined by the first device to be in the service group
  • the at least one target device sends data and does not receive the wakeup notification sent by any one of the other devices in the service group during the channel competition, the first device is in the discovery window to the service group. Wake-up notification sent by other devices;
  • the state wake-up module is configured to, according to the wake-up notification sent by the first device, be in an awake state when the service window is reached to perform data transmission in the service window.
  • the second device further includes:
  • a state obtaining module configured to acquire, when the second device does not receive the wakeup notification sent by another device in the service group, the channel busyness in the discovery window, where the channel is busy
  • the idleness includes a ratio of the working time of the channel to the discovery window
  • a threshold judging module configured to determine whether the channel busyness in the discovery window exceeds a preset threshold
  • the state determining module is configured to: when the channel busyness exceeds a preset threshold, is in an awake state when the service window is reached to perform data transmission in the service window.
  • the service group establishing module includes:
  • a message receiving unit configured to receive a service announcement message sent by the first device
  • a service confirmation unit configured to confirm, according to the service advertisement message, whether the second device supports the same service as the first device
  • a message sending unit configured to: when the second device and the first device support the same service, send a service request message to the first device, so that the first device sends the message according to the service request message
  • the second device joins the service group.
  • the service window includes a paging window and a transmission window ,
  • the status wake-up module is configured to receive, in the paging window, a paging message sent by the first device, and keep the awake state in the transmission window according to the paging message sent by the first device, and Receiving data transmitted by the first device in the transmission window.
  • the service window includes a paging window and a transmission window
  • the device further includes:
  • a state recovery module configured to: when the second device does not receive a paging message sent by another device in the service group in the paging window, and determines that no data is sent to other devices in the service group, Reverting from the awake state to the sleep state upon reaching the transmission window.
  • a fifth aspect of the embodiments of the present invention provides a system for performing data transmission in a proximity sensing network, including: a first device and a second device, where the first device includes any one of the foregoing first devices, The second device includes any of the second devices described above.
  • a sixth aspect of the embodiments of the present invention provides a data transmission in a proximity sensing network.
  • the device includes a network interface, a memory, and a processor, wherein the memory stores a set of program code, and the processor is configured to call the program code stored in the memory to perform the following operations:
  • the first device Establishing, by the first device, the service group with the at least one device that supports the same service, and agreeing, with the at least one device, a discovery window and a service window of the service group; the first device and the at least one The devices are all devices in the NAN;
  • the first device determines to send data to at least one target device in the service group and does not receive a wake-up notification sent by any one of the at least one device during channel contention, then the first The device sends a wakeup notification to the at least one device in the discovery window, so that the device in the sleep state of the at least one device switches to an awake state when the world reaches the service window, so that the at least one device arrives
  • the service window is in an awake state, and the first device performs data transmission between the service window and the at least one target device in an awake state.
  • the wake-up notification is sent in a contention manner in the discovery window, which may cause multiple devices to send wake-up notifications, resulting in excessive air interface resource usage, low data transmission efficiency, and power consumption.
  • a high technical problem is that a service group is established by at least one device in which the first device supports the same service with the first device in the proximity sensing network, and the discovery window and the service window of the service group are agreed with the at least one device; when the first device determines the direction When the target device in the service group sends data and does not receive the wake-up notification sent by the at least one device during the channel competition, the first device sends a wake-up notification to the at least one device in the discovery window, so that at least one device is in a dormant state.
  • the device When the device reaches the service window, the device switches to the awake state, so that at least one device is in the awake state when the service window is reached to perform data transmission in the service window, thereby reducing the air interface resource occupation, improving the efficiency of data transmission, and reducing the consumption. Electricity.
  • FIG. 2 is a flow chart of a second embodiment of a method for data transmission in a proximity aware network proposed by the present invention
  • FIG. 3 is a flow chart of a third embodiment of a method for data transmission in a proximity aware network proposed by the present invention.
  • FIG. 4 is a schematic structural diagram of a first device according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a service group establishing module in a first device according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a second device according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a service group establishing module in a second device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a system for performing data transmission in a proximity sensing network according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of an apparatus for performing data transmission in a proximity sensing network according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a first embodiment of a method for data transmission in a proximity sensing network NAN proposed by the present invention. As shown in the figure, the method in the embodiment of the present invention includes:
  • the first device in the proximity sensing network and the at least one device that supports the same service as the first device establish a service group, and the discovery window and the service window of the service group are agreed with the at least one device.
  • a device and the at least one device are both devices in the NAN.
  • the first device sends service advertisement information to other devices in the neighboring sensing network, so that the other devices respectively confirm whether they support the same service with the first device according to the service advertisement information.
  • the device establishes a service group with the at least one device according to the service request message sent by the at least one device.
  • the first device may send the service announcement information carrying the indication discovery window and the service window to agree with the at least one device of the discovery window and the service window of the service group; or the first device may send the service carrying the indication discovery window. Notifying the information, and then notifying the service window to the at least one device in the discovery window; or the first device sending the service announcement information carrying the indication negotiation window, and joining the service with the first one of the at least one device in the negotiation window.
  • the devices of the group negotiate to obtain the discovery window and business window of the service group.
  • each device in the NAN can use multiple services at the same time, and multiple services used by each device may not be identical. Therefore, one device can join multiple service groups at the same time, and each service group has multiple Devices use the same business.
  • a discovery window and at least one service window corresponding to the discovery window may be a service processing cycle, and the discovery window of the service group may be a DW window of each NAN (such as DWs of 1, 2, 3, 4, ..., etc.)
  • the window is the discovery window of the service group. It can also be a DW window with a certain interval of NAN.
  • the interval can be 1 DW window of NAN (such as the first, third, fifth, seventh, etc. window for the discovery of the business group).
  • the interval can also be 2 DW windows of NAN (such as the first, 4, 7, 10, ..., etc. window is the discovery window of the business group), or the DW window of other numbers of NAN, and so on.
  • the service window of the service group can be obtained by each discovery window after a preset time and/or channel offset.
  • the discovery window and the service window can be on the same channel, or on different channels, and the duration of the discovery window and the service window can be Determine based on business processing time. For example, first define a discovery window every 512ms or 1024ms, and then define the business window in the interval between each two discovery windows.
  • the length of the discovery window and the business window can be 16ms. You can also define a discovery during the entire business processing time. Window and a business window.
  • the service window is in an awake state, and the first device is in the service window and the at least one target in the awake state.
  • the device performs data transmission.
  • the first device sends the wakeup notification to the at least one device in the service group according to the service group identifier.
  • the device can send the wakeup notification to the specified service group according to the service group identifier.
  • the wakeup notification may be a service discovery frame, and the service group identifier may be placed in the first address of the service discovery frame, and the first device may directly send the wakeup notification to the specified service group; the service group identifier may also be placed in the service discovery frame.
  • the broadcast address or the specific multicast address is placed in the first address, and after the device in the specified service group receives the wakeup notification, the third address can confirm that the wakeup notification is sent to the third address.
  • the other service group After receiving the wake-up notification, the other service group can confirm that the service group identifier is not its own; the service group identifier can also be placed in the wake-up notification in the form of an information element, and the device of the specified service group passes the wake-up notification, and The information element knows that the wakeup notification is sent to itself.
  • the service group identifier may be a MAC (Medium Access Control) address or other identifier of the device, such as a service name, a service category, a MAC address, a service name, a service type, and the like. Wait.
  • the service group identifier may be provided by the first device providing the service or the first device searching for the service, for example, the device A provides a music playing service, waits for other devices to discover in the NAN, and the device B searches for the music playing service.
  • Device B discovers device A through the NAN service discovery mechanism, so device B establishes a service group with device A, device A sends the MAC address of device A to device B, and device A and device B simultaneously use the MAC address of device A as Business group ID.
  • device B can send the MAC address of device B to device A.
  • Device A and device B simultaneously use the MAC address of device B as the service group identifier.
  • device A or device B can send the service group ID group to other devices. In this case, all devices in the service group have the same service group ID.
  • the paging window of the first device in the service window is The target device sends a paging message, so that the target device receives data sent by the first device in the transmission window according to the paging message.
  • the service window includes a paging window and a transmission window.
  • the first device sends a wakeup notification in the discovery window, and all the devices of the service group to which the first device belongs can receive the wakeup notification, and then according to the wakeup notification, in the paging window of the corresponding service window. They wake up, and then the devices in the entire service group page each other according to the needs of data transmission.
  • the device that is paged can wait to receive data in the next transmission window, and paging other devices in the next The transfer window can send data.
  • any device of the service group can be the first device as long as it can contend for sending wake-up notifications. Because it is sent by the competition, in the discovery window, other devices in the service group, such as the second device, can only receive a wake-up notification sent by the first device.
  • the first device can page its target device, and other devices can also page their corresponding target devices. Of course, the first device can also be paged. That is to say, the effect achieved by this solution is that when any device in the service group is ready to send service data to some other device or devices, it can send a wake-up notification in the discovery window to notify all the services in the service group.
  • the device is in the awake state in the paging window of the service window. It may be in the sleep state, then switch to the awake state, or it may remain awake, and then the devices will page each other as needed, and then transmit.
  • the discovery window if one of the devices in the service group sends a wake-up message, the other devices do not need to send the wake-up notification any more, as long as the paging window of the corresponding service window wakes up.
  • the first device performs encryption processing on the wakeup notification; the first device sends the encrypted processing wakeup notification to the at least one device.
  • the encryption processed key may also be provided by the first device providing the service or the first device searching for the service.
  • the wakeup notification may include a service notification bit table, where the service notification bit table is used to indicate that multiple service windows after the service window are in an awake state to perform data transmission in the multiple service windows in the awake state.
  • the service notification bit table may be an 8-bit binary code, indicating 8 consecutive service windows after the discovery window. If the value of the 8-bit binary code is 01100111, it indicates that the second, third, sixth, seventh, and eighth service windows are displayed.
  • the at least one device receives the service notification bit table and is in an awake state each time the service window indicated by the service notification bit table is reached.
  • the first device in the manner of the discovery window, contends to the channel resource to the at least A device sends a wakeup notification.
  • the method for competing channel resources is as follows: a carrier Sense Multiple Access with Collision Avoidance (CSMA) mechanism is adopted.
  • CSMA carrier Sense Multiple Access with Collision Avoidance
  • the generated random number is used for backoff.
  • the random number is decremented by 1 every preset time interval.
  • the wake-up notification is sent immediately. If the random number is not reduced to 0, the channel running status is monitored as busy, then the pause is reduced.
  • the random number when re-listening to the channel idle time reaches a predetermined time, continues to decrement the random number by one.
  • the CSMA/CA if the first device receives the wakeup notification sent by the at least one device, the first device does not send the wakeup notification.
  • the device may switch to the sleep state or the awake state, and some of the at least one device determines to send data to the target device in the service group but is in the channel.
  • the channel resource does not receive the wake-up notification, so the certain device may switch to the sleep state after receiving the wake-up notification in the discovery window, or may remain in the awake state; some of the at least one device does not have the device.
  • Data transmission is only waiting to receive possible data, so the certain device can remain in a dormant state after receiving the wake-up notification in the discovery window until all devices in the service group are in the awake state when the service window is reached.
  • a service group is established by at least one device in which the first device supports the same service with the first device in the proximity sensing network, and the discovery window and the service window of the service group are agreed with the at least one device; Determining that the data is sent to the target device in the service group and the wake-up notification sent by the at least one device is not received during the channel competition, the first device sends a wake-up notification to the at least one device in the discovery window, so that at least one device is in the sleep state.
  • the device in the state switches to the awake state when it reaches the service window, so that at least one device is in the awake state when it reaches the service window to perform data transmission in the service window, thereby improving the efficiency of data transmission and reducing the power consumption.
  • FIG. 2 is a flowchart of a second embodiment of a method for data transmission in a proximity sensing network according to the present invention. As shown in the figure, the method in the embodiment of the present invention includes:
  • the first device sends service advertisement information to other devices in the proximity sensing network.
  • the second device confirms, according to the service advertisement message, whether the second device supports the same service as the first device.
  • the second device sends a service request message to the first device.
  • the first device establishes a service group with the at least one device according to the service request message sent by the at least one device, and appoints a discovery window and a service window of the service group with the at least one device.
  • the first device may send the service announcement information that carries the indication discovery window and the service window, to agree with the at least one device, the discovery window and the service window of the service group, or the first device may send the indication discovery window.
  • the service announcement information and then notifying the service window to the at least one device in the discovery window; or the first device sends the service announcement information carrying the indication negotiation window, in the negotiation window, the first one of the at least one device Join the device of the service group to negotiate and obtain the discovery window and service window of the service group.
  • each device in the NAN can use multiple services at the same time, and multiple services used by each device may not be identical. Therefore, one device can join multiple service groups at the same time, and each service group has multiple Devices use the same business.
  • a discovery window and at least one service window corresponding to the discovery window may be a service processing cycle, and the discovery window of the service group may be a DW window of each NAN (such as DWs of 1, 2, 3, 4, ..., etc.)
  • the window is the discovery window of the service group. It can also be a DW window with a certain interval of NAN.
  • the interval can be 1 DW window of NAN (such as the first, third, fifth, seventh, etc. window for the discovery of the business group).
  • the interval can also be 2 DW windows of NAN (such as the first, 4, 7, 10, ..., etc. window is the discovery window of the business group), or the DW window of other numbers of NAN, and so on.
  • the service window of the service group can be obtained by each discovery window after a preset time and/or channel offset.
  • the discovery window and the service window can be on the same channel, or on different channels, and the duration of the discovery window and the service window can be Determine based on business processing time. For example, first define a discovery window every 512ms or 1024ms, and then define the business window in the interval between each two discovery windows.
  • the length of the discovery window and the business window can be 16ms. You can also define a discovery during the entire business processing time. Window and a business window.
  • the first device determines to send the number to at least one target device in the service group. And the first device sends a wakeup notification to the at least one device in the discovery window when the wakeup notification sent by any one of the at least one device is not received during channel competition.
  • the first device sends the wakeup notification to the at least one device in the service group according to the service group identifier.
  • the device can send the wakeup notification to the specified service group according to the service group identifier.
  • the wakeup notification may be a service discovery frame, and the service group identifier may be placed in the first address of the service discovery frame, and the first device may directly send the wakeup notification to the specified service group; the service group identifier may also be placed in the service discovery frame.
  • the broadcast address or the specific multicast address is placed in the first address, and after the device in the specified service group receives the wakeup notification, the third address can confirm that the wakeup notification is sent to the third address.
  • the other service group After receiving the wake-up notification, the other service group can confirm that the service group identifier is not its own; the service group identifier can also be placed in the wake-up notification in the form of an information element, and the device of the specified service group passes the wake-up notification, and The information element knows that the wakeup notification is sent to itself.
  • the service group identifier may be a MAC address or other identifier of the device, such as a service name of the service group, a service category or a MAC address, a service name, a service category, and the like.
  • the service group identifier may be provided by the first device providing the service or the first device searching for the service, for example, the device A provides a music playing service, waits for other devices to discover in the NAN, and the device B searches for the music playing service.
  • Device B discovers device A through the NAN service discovery mechanism, so device B establishes a service group with device A, device A sends the MAC address of device A to device B, and device A and device B simultaneously use the MAC address of device A as Business group ID.
  • device B may send the MAC address of device B to device A, and device A and device B simultaneously use the MAC address of device B as the service group identifier.
  • device A or device B can send the service group ID group to other devices. In this case, all devices in the service group have the same service group ID.
  • the first device performs encryption processing on the wakeup notification; the first device sends the encrypted processing wakeup notification to the at least one device.
  • the encryption processed key may also be provided by the first device providing the service or the first device searching for the service.
  • the wakeup notification may include a service notification bit table, and the service notification bit table is used to indicate the service.
  • a plurality of service windows behind the window are in an awake state to perform data transmission in the plurality of service windows in the awake state.
  • the service notification bit table may be an 8-bit binary code, indicating 8 consecutive service windows after the discovery window. If the value of the 8-bit binary code is 01100111, it indicates that the second, third, sixth, seventh, and eighth service windows are displayed.
  • the at least one device receives the service notification bit table and is in an awake state each time the service window indicated by the service notification bit table is reached.
  • the first device sends a wakeup notification to the at least one device in a manner that the channel is contending in the discovery window.
  • the method for competing channel resources is as follows: a carrier Sense Multiple Access with Collision Avoidance (CSMA) mechanism is adopted.
  • CSMA carrier Sense Multiple Access with Collision Avoidance
  • the generated random number is used for backoff.
  • the random number is decremented by 1 every preset time interval.
  • the wake-up notification is sent immediately. If the random number is not reduced to 0, the channel running status is monitored as busy, then the pause is reduced.
  • the random number when re-listening to the channel idle time reaches a predetermined time, continues to decrement the random number by one.
  • the CSMA/CA if the first device receives the wakeup notification sent by the at least one device, the first device does not send the wakeup notification.
  • the device may switch to the sleep state or the awake state, and some of the at least one device determines to send data to the target device in the service group but is in the channel.
  • the channel resource does not receive the wake-up notification, so the certain device may switch to the sleep state after receiving the wake-up notification in the discovery window, or may remain in the awake state; some of the at least one device does not have the device.
  • Data transmission is only waiting to receive possible data, so the certain device can remain in a dormant state after receiving the wake-up notification in the discovery window until all devices in the service group are in the awake state when the service window is reached.
  • the second device is in an awake state when the service window is reached according to the wakeup notification sent by the first device.
  • the second device after the second device receives the wakeup notification, when the second device determines that there is no data transmission, the second device can remain in the dormant state until the service window, and switch to the awake state; when the second device determines the target in the service group When the device sends data but does not get the wakeup notification of the channel resource transmission during the channel competition, it can keep the awake state or switch from the awake state to the sleep state. It then wakes up when it reaches the business window.
  • the first device sends a paging message to the at least one target device in the paging window in the service window.
  • the second device keeps an awake state in the transmission window according to the paging message sent by the first device, and receives data sent by the first device in the transmission window.
  • a service group is established by at least one device in which the first device supports the same service with the first device in the proximity sensing network, and the discovery window and the service window of the service group are agreed with the at least one device; Determining that the data is sent to the target device in the service group and the wake-up notification sent by the at least one device is not received during the channel competition, the first device sends a wake-up notification to the at least one device in the discovery window, so that at least one device is in the sleep state.
  • the device in the state switches to the awake state when it reaches the service window, so that at least one device is in the awake state when it reaches the service window to perform data transmission in the service window, thereby improving the efficiency of data transmission and reducing the power consumption.
  • FIG. 3 is a flowchart of a third embodiment of a method for data transmission in a proximity sensing network according to the present invention. As shown in the figure, the method in the embodiment of the present invention includes:
  • the second device in the proximity sensing network establishes a service group with the first device that supports the same service, and the first device appoints a discovery window and a service window of the service group.
  • a device and the second device are both devices in the NAN.
  • the second device receives the service advertisement message sent by the first device, and the second device confirms, according to the service advertisement message, whether the second device supports the same service with the first device; When the second device and the first device support the same service, the second device sends a service request message to the first device, so that the first device joins the second device according to the service request message. Go to the business group.
  • the second device receives, in the discovery window, a wakeup notification sent only by the first device in the service group, where the wakeup notification is determined by the first device to be in the service group.
  • the at least one target device transmits data and does not receive a wakeup notification sent by any one of the other devices in the service group during channel contention, the first device is in the discovery window to the service group Wake-up notification sent by other devices in .
  • the first device sends a wakeup notification in the discovery window, and all the devices of the service group to which the first device belongs can receive the wakeup notification, and then according to the wakeup notification, in the paging window of the corresponding service window. They wake up, and then the devices in the entire service group page each other according to the needs of data transmission.
  • the device that is paged can wait to receive data in the next transmission window, and paging other devices in the next The transfer window can send data.
  • any device of the service group can be the first device as long as it can contend for sending wake-up notifications. Because it is sent by the competition, in the discovery window, other devices in the service group, such as the second device, can only receive a wake-up notification sent by the first device.
  • the first device can page its target device, and other devices can also page their corresponding target devices. Of course, the first device can also be paged. That is to say, the effect achieved by this solution is that when any device in the service group is ready to send service data to some other device or devices, it can send a wake-up notification in the discovery window to notify all the services in the service group.
  • the device is in the awake state in the paging window of the service window. It may be in the sleep state, then switch to the awake state, or it may remain awake, and then the devices will page each other as needed, and then transmit.
  • the discovery window if one of the devices in the service group sends a wake-up message, the other devices do not need to send the wake-up notification any more, as long as the paging window of the corresponding service window wakes up.
  • the second device may remain in the dormant state and switch to the awake state when the service window is reached; when the second device determines to be in the service group
  • the target device transmits data but does not get the wake-up notification of the channel resource transmission during the channel competition, and can remain in the awake state or switch from the awake state to the sleep state, and then wakes up when the service window is reached.
  • the second device when the second device does not receive the wakeup notification sent by the other device in the service group, acquires the channel busyness in the discovery window, where The channel busyness includes, but is not limited to, a ratio of the working time of the channel to the discovery window; and the second device determines whether the channel busyness in the discovery window exceeds a preset threshold; When the channel busyness exceeds a preset threshold, the second device is in an awake state when the service window is reached to perform data transmission in the service window.
  • the channel busyness includes, but is not limited to, a ratio of the working time of the channel to the discovery window; and the second device determines whether the channel busyness in the discovery window exceeds a preset threshold; When the channel busyness exceeds a preset threshold, the second device is in an awake state when the service window is reached to perform data transmission in the service window.
  • the second device arrives at the industry according to the wakeup notification sent by the first device.
  • the window is awake to perform data transfer in the service window.
  • the service window includes a paging window and a transmission window.
  • the second device when the second device arrives at the paging window in the service window, the second device receives the paging message sent by the first device in the paging window; The paging message sent by the first device remains in an awake state in the transmission window, and receives data sent by the first device in the transmission window.
  • the second device does not receive a paging message sent by another device in the service group in the paging window and determines that there is no data transmission to other devices in the service group, the second device is When the transmission window is reached, it returns from the awake state to the sleep state, thereby saving power.
  • a service group is established by at least one device in which the first device supports the same service with the first device in the proximity sensing network, and the discovery window and the service window of the service group are agreed with the at least one device; Determining that the data is sent to the target device in the service group and the wake-up notification sent by the at least one device is not received during the channel competition, the first device sends a wake-up notification to the at least one device in the discovery window, so that at least one device is in the sleep state.
  • the device in the state switches to the awake state when it reaches the service window, so that at least one device is in the awake state when it reaches the service window to perform data transmission in the service window, thereby improving the efficiency of data transmission and reducing the power consumption.
  • FIG. 4 is a schematic structural diagram of a first device according to an embodiment of the present invention. As shown in the figure, the first device in the embodiment of the present invention includes:
  • a service group establishing module 401 configured to establish a service group in the proximity sensing network and at least one device that supports the same service with the first device, and appoint a discovery window and a service window of the service group with the at least one device,
  • the first device and the at least one device are both devices in the NAN.
  • the service group establishing module 401 may further include:
  • the information sending unit 501 is configured to send service advertisement information to other devices in the proximity sensing network, so that the other devices respectively confirm whether they support the same service with the first device according to the service advertisement information.
  • the information receiving unit 502 is configured to receive the other service that supports the same service as the first device A service request message sent by the at least one device in the device.
  • the service group establishing unit 503 is configured to establish a service group with the at least one device according to the service request message separately sent by the at least one device.
  • the first device may send the service announcement information carrying the indication discovery window and the service window to agree with the at least one device of the discovery window and the service window of the service group; or the first device may send the service carrying the indication discovery window. Notifying the information, and then notifying the service window to the at least one device in the discovery window; or the first device sending the service announcement information carrying the indication negotiation window, and joining the service with the first one of the at least one device in the negotiation window.
  • the devices of the group negotiate to obtain the discovery window and business window of the service group.
  • each device in the NAN can use multiple services at the same time, and multiple services used by each device may not be identical. Therefore, one device can join multiple service groups at the same time, and each service group has multiple Devices use the same business.
  • a discovery window and at least one service window corresponding to the discovery window may be a service processing cycle, and the discovery window of the service group may be a DW window of each NAN (such as DWs of 1, 2, 3, 4, ..., etc.)
  • the window is the discovery window of the service group. It can also be a DW window with a certain interval of NAN.
  • the interval can be 1 DW window of NAN (such as the first, third, fifth, seventh, etc. window for the discovery of the business group).
  • the interval can also be 2 DW windows of NAN (such as the first, 4, 7, 10, ..., etc. window is the discovery window of the business group), or the DW window of other numbers of NAN, and so on.
  • the service window of the service group can be obtained by each discovery window after a preset time and/or channel offset.
  • the discovery window and the service window can be on the same channel, or on different channels, and the duration of the discovery window and the service window can be Determine based on business processing time. For example, first define a discovery window every 512ms or 1024ms, and then define the business window in the interval between each two discovery windows.
  • the length of the discovery window and the business window can be 16ms. You can also define a discovery during the entire business processing time. Window and a business window.
  • the notification sending module 402 is configured to: when the first device determines to send data to at least one target device in the service group, and does not receive a wake notification sent by any one of the at least one device during channel contention And sending, in the discovery window, a wakeup notification to the at least one device, so that the device in the sleep state of the at least one device switches to an awake state when the service window is reached, so that the at least one device arrives
  • the business window is always called In the awake state, the first device performs data transmission with the at least one target device in the awake state in the service window.
  • the first device sends the wakeup notification to the at least one device in the service group according to the service group identifier.
  • the device can send the wakeup notification to the specified service group according to the service group identifier.
  • the wakeup notification may be a service discovery frame, and the service group identifier may be placed in the first address of the service discovery frame, and the first device may directly send the wakeup notification to the specified service group; the service group identifier may also be placed in the service discovery frame.
  • the broadcast address or the specific multicast address is placed in the first address, and after the device in the specified service group receives the wakeup notification, the third address can confirm that the wakeup notification is sent to the third address.
  • the other service group After receiving the wake-up notification, the other service group can confirm that the service group identifier is not its own; the service group identifier can also be placed in the wake-up notification in the form of an information element, and the device of the specified service group passes the wake-up notification, and The information element knows that the wakeup notification is sent to itself.
  • the service group identifier may be a MAC (Medium Access Control) address or other identifier of the device, such as a service name, a service category, a MAC address, a service name, a service type, and the like. Wait.
  • the service group identifier may be provided by the first device providing the service or the first device searching for the service, for example, the device A provides a music playing service, waits for other devices to discover in the NAN, and the device B searches for the music playing service.
  • Device B discovers device A through the NAN service discovery mechanism, so device B establishes a service group with device A, device A sends the MAC address of device A to device B, and device A and device B simultaneously use the MAC address of device A as Business group ID.
  • device B can send the MAC address of device B to device A.
  • Device A and device B simultaneously use the MAC address of device B as the service group identifier.
  • device A or device B can send the service group ID group to other devices. In this case, all devices in the service group have the same service group ID.
  • the first device performs an encryption process on the wakeup notification; the first device sends the encrypted process wakeup notification to the at least one device.
  • the encryption processed key may also be provided by the first device providing the service or the first device searching for the service.
  • the wakeup notification may include a service notification bit table, and the service notification bit table is used to indicate the service.
  • a plurality of service windows behind the window are in an awake state to perform data transmission in the plurality of service windows in the awake state.
  • the service notification bit table may be an 8-bit binary code, indicating 8 consecutive service windows after the discovery window. If the value of the 8-bit binary code is 01100111, it indicates that the second, third, sixth, seventh, and eighth service windows are displayed.
  • the at least one device receives the service notification bit table and is in an awake state each time the service window indicated by the service notification bit table is reached.
  • the first device sends a wakeup notification to the at least one device in a manner that the channel is contending in the discovery window.
  • the method for competing channel resources is as follows: a carrier Sense Multiple Access with Collision Avoidance (CSMA) mechanism is adopted.
  • CSMA carrier Sense Multiple Access with Collision Avoidance
  • the generated random number is used for backoff.
  • the random number is decremented by 1 every preset time interval.
  • the wake-up notification is sent immediately. If the random number is not reduced to 0, the channel running status is monitored as busy, then the pause is reduced.
  • the random number when re-listening to the channel idle time reaches a predetermined time, continues to decrement the random number by one.
  • the CSMA/CA if the first device receives the wakeup notification sent by the at least one device, the first device does not send the wakeup notification.
  • the device may switch to the sleep state or the awake state, and some of the at least one device determines to send data to the target device in the service group but is in the channel.
  • the channel resource does not receive the wake-up notification, so the certain device may switch to the sleep state after receiving the wake-up notification in the discovery window, or may remain in the awake state; some of the at least one device does not have the device.
  • Data transmission is only waiting to receive possible data, so the certain device can remain in a dormant state after receiving the wake-up notification in the discovery window until all devices in the service group are in the awake state when the service window is reached.
  • the first device 40 may further include:
  • a message sending module 403 configured to send a paging message to the target device in the paging window in the service window, so that the target device receives the first message in the transmission window according to the paging message.
  • the service window includes a paging window and a transmission window.
  • the certain device may arrive at the transmission. Switching from the awake state to the sleep state when the window is input, thereby saving power.
  • a service group is established by at least one device in which the first device supports the same service with the first device in the proximity sensing network, and the discovery window and the service window of the service group are agreed with the at least one device; Determining that the data is sent to the target device in the service group and the wake-up notification sent by the at least one device is not received during the channel competition, the first device sends a wake-up notification to the at least one device in the discovery window, so that at least one device is in the sleep state.
  • the device in the state switches to the awake state when it reaches the service window, so that at least one device is in the awake state when it reaches the service window to perform data transmission in the service window, thereby improving the efficiency of data transmission and reducing the power consumption.
  • FIG. 6 is a schematic structural diagram of a second device according to an embodiment of the present invention. As shown in the figure, the second device in the embodiment of the present invention includes:
  • the service group establishing module 601 is configured to establish a service group with the first device that supports the same service in the neighboring sensing network, and agree with the first device to discover the service window and the service window of the service group.
  • the first device and the second device are both devices in the NAN.
  • the service group establishing module 601 may further include:
  • the message receiving unit 701 is configured to receive a service announcement message sent by the first device.
  • the service confirmation unit 702 is configured to confirm, according to the service advertisement message, whether the second device supports the same service as the first device.
  • the message sending unit 703 is configured to: when the second device and the first device support the same service, send a service request message to the first device, so that the first device sends a message according to the service request message.
  • the second device is added to the service group.
  • the notification receiving module 602 is configured to receive, in the discovery window, a wakeup notification sent only by the first device in the service group, where the wakeup notification is determined by the first device to be in the service group.
  • the at least one target device transmits data and does not receive a wakeup notification sent by any one of the other devices in the service group during channel contention, the first device is in the discovery window to the service group Wake-up notification sent by other devices in .
  • the second device may keep the sleep state when the second device determines that there is no data transmission, and switch to the awake state when the service window is reached; The device determines to send data to the target device in the service group but does not receive the channel resource sending wake-up notification during the channel competition, and may remain in the awake state or switch from the awake state to the sleep state, and then awake when reaching the service window. .
  • the state wakeup module 603 is configured to, according to the wakeup notification sent by the first device, be in an awake state when the service window is reached to perform data transmission in the service window.
  • the second device when the second device arrives at the paging window in the service window, the second device receives the paging message sent by the first device in the paging window;
  • the paging message sent by the first device remains in an awake state in the transmission window, and receives data sent by the first device in the transmission window.
  • the second device 60 may further include:
  • a state recovery module 604 configured to: when the second device does not receive a paging message sent by another device in the service group in the paging window, and determines that no data is sent to other devices in the service group Recovering from the awake state to the sleep state when the transmission window is reached, thereby saving power.
  • the second device 60 may further include:
  • a state obtaining module 605 configured to acquire, when the second device does not receive the wakeup notification sent by another device in the service group, the channel busyness in the discovery window, the channel Busyness includes, but is not limited to, the ratio of the working time of the channel to the discovery window.
  • the threshold determining module 606 is configured to determine whether the channel busyness in the discovery window exceeds a preset threshold.
  • the status determining module 607 is configured to, when the channel busyness exceeds a preset threshold, be in an awake state when the service window is reached to perform data transmission in the service window.
  • a service group is established by at least one device in which the first device supports the same service with the first device in the proximity sensing network, and the discovery window and the service window of the service group are agreed with the at least one device; Determining that the data is sent to the target device in the service group and the wake-up notification sent by the at least one device is not received during the channel competition, the first device sends a wake-up notification to the at least one device in the discovery window, so that at least one device is in the sleep state.
  • the state device switches to the awake state when it reaches the service window, so that at least one device arrives at the service window.
  • the awake state is used for data transmission in the service window, thereby improving the efficiency of data transmission and reducing power consumption.
  • FIG. 8 is a schematic structural diagram of a system for performing data transmission in a proximity sensing network according to an embodiment of the present invention.
  • the system in the embodiment of the present invention includes at least a first device 40 and a second device 60. ,among them:
  • the first device 40 is configured to establish a service group in the proximity sensing network and at least one device that supports the same service with the first device, and appoint a discovery window and a service window of the service group with the at least one device;
  • the first device and the at least one device are both devices in the NAN; when the first device determines to send data to at least one target device in the service group and does not receive the channel during contention
  • the first device sends a wakeup notification to the at least one device in the discovery window, so that the device in the sleep state of the at least one device is in time Switching to the awake state when the service window is reached, so that the at least one device is in an awake state when the service window is reached, and the first device is in the service window and the at least one target in the awake state.
  • the device performs data transmission.
  • the second device 60 when the second device does not receive the wakeup notification sent by the other device in the service group, the second device acquires the channel busyness in the discovery window.
  • the channel busyness includes a ratio of the working time of the channel to the discovery window; the second device determines whether the channel busyness in the discovery window exceeds a preset threshold; when the channel is busy When the idleness exceeds the preset threshold, the second device is in an awake state when the service window is reached to perform data transmission in the service window.
  • FIG. 9 is a schematic structural diagram of an apparatus for performing data transmission in a proximity sensing network according to an embodiment of the present invention.
  • the device is a first device.
  • the first device may include at least one processor 901, such as a CPU, at least one receiver 903, at least one memory 904, at least one transmitter 905, and at least one communication bus 902.
  • the communication bus 902 is used to implement connection communication between these components.
  • the receiver 903 and the transmitter 905 of the device in the embodiment of the present invention may be a wired sending port, or may be a wireless device, for example, including an antenna device, for Signaling or data communication with other node devices.
  • the memory 904 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • the memory 904 can also optionally be at least one storage device located remotely from the aforementioned processor 901.
  • a set of program codes is stored in the memory 904, and the processor 901 is configured to call program code stored in the memory for performing the following operations:
  • the first device Establishing, by the first device, the service group with the at least one device that supports the same service, and agreeing, with the at least one device, a discovery window and a service window of the service group; the first device and the at least one The devices are all devices in the NAN;
  • the first device determines to send data to at least one target device in the service group and does not receive a wake-up notification sent by any one of the at least one device during channel contention, then the first The device sends a wakeup notification to the at least one device in the discovery window, so that the device in the sleep state of the at least one device switches to the awake state when the time arrives at the service window, so that the at least one device arrives
  • the service window is in an awake state, and the first device performs data transmission between the service window and the at least one target device in an awake state.
  • the present invention provides a device for performing data transmission in a proximity sensing network, where the device is a second device.
  • the second device may comprise at least one processor, such as a CPU, at least one receiver, at least one memory, at least one transmitter, at least one communication bus.
  • the communication bus is used to implement connection communication between these components.
  • the receiver and the transmitter of the device in the embodiment of the present invention may be a wired sending port, or may be a wireless device, for example, including an antenna device, for performing signaling or data communication with other node devices.
  • the memory may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • the memory optionally may also be at least one storage device located remotely from the aforementioned processor.
  • a set of program code is stored in the memory, and the processor is used to call the program code stored in the memory to perform the following operations:
  • the second device establishes a service group with the first device that supports the same service, and appoints a discovery window and a service window of the service group with the first device; the first device and the second device
  • the devices are all devices in the NAN;
  • the second device receives, in the discovery window, a wakeup notification sent only by the first device in the service group, where the wakeup notification is determined by the first device to be at least one of the service groups.
  • a target device sends data and does not receive a wakeup notification sent by any one of the other devices in the service group during channel contention, the first device is in the discovery window to the service group. Wake-up notification sent by other devices;
  • the second device is in an awake state when the service window is reached according to the wakeup notification sent by the first device to perform data transmission in the service window.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: Flash disk, Read-Only Memory (ROM), Random Access Memory (RAM), disk or optical disk.

Landscapes

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

Abstract

一种用于在NAN中进行数据传输的方法包括：第一设备和与所述第一设备支持相同业务的至少一个设备建立业务组，并与所述至少一个设备约定所述业务组的发现窗口以及业务窗口；第一设备和所述至少一个设备均为所述NAN中的设备；当第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述至少一个设备中的任一个设备发送的唤醒通知时，则第一设备在所述发现窗口向所述至少一个设备发送唤醒通知，以使所述至少一个设备中处于休眠状态的设备在到达所述业务窗口时切换到唤醒状态，使得所述至少一个设备在到达所述业务窗口时均处于唤醒状态，进而所述第一设备在所述业务窗口与处于唤醒状态的所述至少一个目标设备进行数据传输。

Description

一种用于在邻近感知网络中进行数据传输的方法及相关设备 技术领域
本发明涉及无线网络技术领域，尤其涉及一种用于在邻近感知网络中进行数据传输的方法及相关设备。
背景技术
Wi-Fi(Wireless-Fidelity，无线保真)技术是一种短距离无线通信技术。Wi-Fi技术的基础标准是IEEE(Institute of Electrical and Electronics Engineers，美国电气和电子工程师协会)制定的802.11协议。Wi-Fi技术的常用结构包括一个接入点(Access Point，AP)和至少一个其他设备，接入点AP通过周期性地向其他设备发送信标(Beacon)帧以宣告该AP的存在，其他设备通过主动发送探测请求(Probe Request)帧并接收探测响应(Probe Response)帧或者被动接收到信标帧从而知道AP的存在，然后通过跟AP进行消息交互以便加入AP的网络。由于802.11协议中的网络结构和数据传输有一定的限制，对于没有连接到AP的设备来说，进行服务发现比较困难，所以基于802.11制定了新的标准，来达到不需要关联，也能达到服务发现的效果，其中，NAN(Neighbor Awareness Networking，临近感知网络)是一种定制的新的标准。
在现有技术方案中，NAN作用是在没有接入点的情况下，所有参与NAN的设备同步起来，并约定NAN的DW(Discovery Window，发现窗口)，并在DW中进行NAN的维持工作和服务发现工作。服务发现工作完成后，可以根据服务发现中交流的信息，NAN中的相关设备建立连接并进行数据传输。具体地，NAN是固定在信道6上，每512ms便有一个发现窗口，发现窗口持续的时长为16ms。NAN定义了DW的开始时间和结束时间的同步机制，为了达成和维护这个同步机制，NAN中的每个设备都需要承担平等的责任。所有加入了NAN的设备，都可以在发现窗口中进行服务发现，在发现窗口所有设备均处于唤醒状态，但是NAN只是提供了发现窗口和基于该发现窗口进行的服务发现工作，在NAN进行服务发现之后，并没有定义服务 发现之后做什么，以致于没有充分利用已有的NAN的网络资源，而是采用Wi-Fi Direct，或基础设施网络等其他技术进行连接和数据传输，导致数据传输效率低下且耗电过高。
发明内容
本发明提供了一种用于在邻近感知网络中进行数据传输的方法及相关设备，以提高数据传输的效率，减小耗电量。
本发明实施例第一方面提供了一种用于在邻近感知网络中进行数据传输的方法，包括：
第一设备和与所述第一设备支持相同业务的至少一个设备建立业务组，并与所述至少一个设备约定所述业务组的发现窗口以及业务窗口；所述第一设备和所述至少一个设备均为所述NAN中的设备；
当所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述至少一个设备中的任一个设备发送的唤醒通知时，则所述第一设备在所述发现窗口向所述至少一个设备发送唤醒通知，以使所述至少一个设备中处于休眠状态的设备在时间到达所述业务窗口时切换到唤醒状态，使得所述至少一个设备在到达所述业务窗口时均处于唤醒状态，进而所述第一设备在所述业务窗口与处于唤醒状态的所述至少一个目标设备进行数据传输。
结合第一方面，在第一方面的第一种可能的实现方式中，所述唤醒通知包括业务组标识，所述第一设备在所述发现窗口向所述至少一个设备发送唤醒通知包括：
所述第一设备根据所述业务组标识，将所述唤醒通知发送到所述业务组中的所述至少一个设备。
结合第一方面或第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述业务窗口包括寻呼窗口和传输窗口，所述第一设备在所述发现窗口向所述至少一个设备发送唤醒通知之后，还包括：
所述第一设备在所述业务窗口中的所述寻呼窗口向所述至少一个目标设备发送寻呼消息，以使所述至少一个目标设备根据所述寻呼消息在所述传输 窗口接收所述第一设备发送的数据。
结合第一方面、第一方面的第一种或第二种可能的实现方式中的任一种实现方式，在第一方面的第三种可能的实现方式中，所述第一设备与所述第一设备支持相同业务的至少一个设备建立业务组包括：
所述第一设备向所述NAN中的其他设备发送业务通告信息，以使所述其他设备分别根据所述业务通告信息确认自身是否与所述第一设备支持相同业务；
所述第一设备接收与所述第一设备支持相同业务的所述其他设备中的所述至少一个设备分别发送的业务请求消息；
所述第一设备根据所述至少一个设备分别发送的业务请求消息，与所述至少一个设备建立业务组。
结合第一方面以及第一方面的第一种至第三种中的任一种可能的实现方式，在第一方面的第四种可能实现方式中，所述第一设备在所述发现窗口向所述至少一个设备发送唤醒通知包括：
所述第一设备对所述唤醒通知进行加密处理；
所述第一设备将所述经过加密处理的唤醒通知发送到所述至少一个设备。
本发明实施例第二方面提供了一种用于在邻近感知网络中进行数据传输的方法，包括：
第二设备和与所述第二设备支持相同业务的第一设备建立业务组，并与所述第一设备约定所述业务组的发现窗口以及业务窗口；所述第一设备和所述第二设备均为所述NAN中的设备；
所述第二设备在所述发现窗口接收到仅来自于所述业务组中的所述第一设备发送的唤醒通知，所述唤醒通知为所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述业务组中的其他设备中的任一个设备发送的唤醒通知时，所述第一设备在所述发现窗口向所述业务组中的其他设备发送的唤醒通知；
所述第二设备根据所述第一设备发送的唤醒通知，在到达所述业务窗口 时处于唤醒状态以在所述业务窗口进行数据传输。
结合第二方面，在第二方面的第一种可能的实现方式中，所述方法还包括：
当所述第二设备在所述发现窗口没有接收到所述业务组中的其他设备发送的唤醒通知时，所述第二设备获取所述发现窗口中的信道忙闲度，所述信道忙闲度包括所述信道的工作时间占所述发现窗口的比值；
所述第二设备判断所述发现窗口中的所述信道忙闲度是否超过预设阈值；
当所述信道忙闲度超过预设阈值时，所述第二设备在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输。
结合第二方面或第二方面的第一种可能的实现方式，在第二方面的第二种可能的实现方式中，所述第二设备和与所述第二设备支持相同业务的第一设备建立业务组包括：
所述第二设备接收所述第一设备发送的业务通告消息；
所述第二设备根据所述业务通告消息确认所述第二设备是否与所述第一设备支持相同业务；
当所述第二设备与所述第一设备支持相同业务时，所述第二设备向所述第一设备发送业务请求消息，以使所述第一设备根据所述业务请求消息将所述第二设备加入到所述业务组。
结合第二方面以及第二方面的第一种至第二种中的任一种可能的实现方式，在第二方面的第三种可能实现方式中，所述业务窗口包括寻呼窗口和传输窗口，所述第二设备根据所述第一设备发送的唤醒通知，在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输包括：
所述第二设备在所述寻呼窗口接收所述第一设备发送的寻呼消息；
所述第二设备根据所述第一设备发送的所述寻呼消息，在所述传输窗口保持唤醒状态，并在所述传输窗口接收所述第一设备发送的数据。
结合第二方面，在第二方面的第四种可能实现方式中，所述业务窗口包括寻呼窗口和传输窗口，所述第二设备根据所述第一设备发送的唤醒通知，在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输包括：
当所述第二设备在所述寻呼窗口没有接收到所述业务组中的其他设备发送的寻呼消息且确定向所述业务组中的其他设备没有数据发送时，所述第二设备在到达所述传输窗口时从唤醒状态恢复到休眠状态。
本发明实施例第三方面提供了一种用于在邻近感知网络中进行数据传输的设备，所述设备为第一设备，所述第一设备包括：
业务组建立模块，用于和与所述第一设备支持相同业务的至少一个设备建立业务组，并与所述至少一个设备约定所述业务组的发现窗口以及业务窗口；所述第一设备和所述至少一个设备均为所述NAN中的设备；
通知发送模块，用于当所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述至少一个设备中的任一个设备发送的唤醒通知时，则在所述发现窗口向所述至少一个设备发送唤醒通知，以使所述至少一个设备中处于休眠状态的设备在时间到达所述业务窗口时切换到唤醒状态，使得所述至少一个设备在到达所述业务窗口时均处于唤醒状态，进而所述第一设备在所述业务窗口与处于唤醒状态的所述至少一个目标设备进行数据传输。
结合第三方面，在第三方面的第一种可能实现方式中，所述唤醒通知包括所述业务组的业务组标识，
所述通知发送模块具体根据所述业务组标识，将所述唤醒通知发送到所述业务组中的所述至少一个设备。
结合第三方面，或第三方面的第一种可能实现方式，在第三方面的第二种可能实现方式中，所述业务窗口包括寻呼窗口和传输窗口，所述装置还包括：
消息发送模块，用于在所述业务窗口中的所述寻呼窗口向所述至少一个目标设备发送寻呼消息，以使所述至少一个目标设备根据所述寻呼消息在所述传输窗口接收所述第一设备发送的数据。
结合第三方面，或第三方面的第一种可能实现方式，或第三方面的第二种可能实现方式，在第三方面的第三种可能实现方式中，所述业务组建立模块包括：
信息发送单元，用于向所述邻近感知网络中的其他设备发送业务通告信息，以使所述其他设备分别根据所述业务通告信息确认自身是否与所述第一设备支持相同业务；
信息接收单元，用于接收与所述第一设备支持相同业务的所述其他设备中的所述至少一个设备分别发送的业务请求消息；
业务组建立单元，用于根据所述至少一个设备分别发送的业务请求消息，与所述至少一个设备建立业务组。
结合第三方面以及第三方面的第一种至第三种中的任一种可能的实现方式，在第三方面的第四种可能实现方式中，所述通知发送模块，还用于对所述唤醒通知进行加密处理；将所述经过加密处理的唤醒通知发送到所述至少一个设备。
本发明实施例第四方面提供了一种用于在邻近感知网络中进行数据传输的设备，所述设备为第二设备，所述第二设备包括：
业务组建立模块，用于和与所述第二设备支持相同业务的第一设备建立业务组，并与所述第一设备约定所述业务组的发现窗口以及业务窗口；所述第一设备和所述第二设备均为所述NAN中的设备；
通知接收模块，用于在所述发现窗口接收到仅来自于所述业务组中的所述第一设备发送的唤醒通知，所述唤醒通知为所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述业务组中的其他设备中的任一个设备发送的唤醒通知时，所述第一设备在所述发现窗口向所述业务组中的其他设备发送的唤醒通知；
状态唤醒模块，用于根据所述第一设备发送的唤醒通知，在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输。
结合第四方面，在第四方面的第一种可能实现方式中，所述第二设备还包括：
状态获取模块，用于当所述第二设备在所述发现窗口没有接收到所述业务组中的其他设备发送的唤醒通知时，获取所述发现窗口中的信道忙闲度，所述信道忙闲度包括所述信道的工作时间占所述发现窗口的比值；
阈值判断模块，用于判断所述发现窗口中的所述信道忙闲度是否超过预设阈值；
状态确定模块，用于当所述信道忙闲度超过预设阈值时，在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输。
结合第四方面，或第四方面的第一种可能实现方式，在第四方面的第二种可能实现方式中，所述业务组建立模块包括：
消息接收单元，用于接收所述第一设备发送的业务通告消息；
业务确认单元，用于根据所述业务通告消息确认所述第二设备是否与所述第一设备支持相同业务；
消息发送单元，用于当所述第二设备与所述第一设备支持相同业务时，向所述第一设备发送业务请求消息，以使所述第一设备根据所述业务请求消息将所述第二设备加入到所述业务组。
结合第四方面以及第四方面的第一种至第二种中的任一种可能的实现方式，在第四方面的第三种可能实现方式中，所述业务窗口包括寻呼窗口和传输窗口，
所述状态唤醒模块具体用于在所述寻呼窗口接收所述第一设备发送的寻呼消息；根据所述第一设备发送的所述寻呼消息，在所述传输窗口保持唤醒状态，并在所述传输窗口接收所述第一设备发送的数据。
结合第四方面，在第四方面的第四种可能实现方式中，所述业务窗口包括寻呼窗口和传输窗口，所述装置还包括：
状态恢复模块，用于当所述第二设备在所述寻呼窗口没有接收到所述业务组中的其他设备发送的寻呼消息且确定向所述业务组中的其他设备没有数据发送时，在到达所述传输窗口时从唤醒状态恢复到休眠状态。
本发明实施例第五方面提供了一种用于在邻近感知网络中进行数据传输的系统，包括：第一设备和第二设备，所述第一设备包括上述的任一第一设备，所述第二设备包括上述的任一第二设备。
本发明实施例第六方面提供了一种用于在邻近感知网络中进行数据传输 的设备，包括网络接口、存储器以及处理器，其中，存储器中存储一组程序代码，且处理器用于调用存储器中存储的程序代码，用于执行以下操作：
第一设备和与所述第一设备支持相同业务的至少一个设备建立业务组，并与所述至少一个设备约定所述业务组的发现窗口以及业务窗口；所述第一设备和所述至少一个设备均为所述NAN中的设备；
当所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述至少一个设备中的任一个设备发送的唤醒通知时，则所述第一设备在所述发现窗口向所述至少一个设备发送唤醒通知，以使所述至少一个设备中处于休眠状态的设备在世界到达所述业务窗口时切换到唤醒状态，使得所述至少一个设备在到达所述业务窗口时均处于唤醒状态，进而所述第一设备在所述业务窗口与处于唤醒状态的所述至少一个目标设备进行数据传输。
实施本发明实施例，针对现有技术中没有限定发现窗口中采用竞争方式发送唤醒通知而导致可能会多个设备都发送唤醒通知，从而导致空口资源占用过高、数据传输效率低下且耗电过高的技术问题，通过在邻近感知网络中第一设备与第一设备支持相同业务的至少一个设备建立业务组，并与至少一个设备约定业务组的发现窗口以及业务窗口；当第一设备确定向业务组中的目标设备发送数据且在信道竞争过程中没有接收到至少一个设备发送的唤醒通知时，第一设备在发现窗口向至少一个设备发送唤醒通知，以使至少一个设备中处于休眠状态的设备在到达业务窗口时切换到唤醒状态，使得至少一个设备在到达业务窗口时均处于唤醒状态以在业务窗口进行数据传输，从而降低了空口资源占用、提高了数据传输的效率，减小了耗电量。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是本发明提出的一种用于在邻近感知网络中进行数据传输的方法的 第一实施例的流程图；
图2是本发明提出的一种用于在邻近感知网络中进行数据传输的方法的第二实施例的流程图；
图3是本发明提出的一种用于在邻近感知网络中进行数据传输的方法的第三实施例的流程图；
图4是本发明实施例提出的第一设备的结构示意图；
图5是本发明实施例提出的第一设备中业务组建立模块的结构示意图；
图6是本发明实施例提出的第二设备的结构示意图；
图7是本发明实施例提出的第二设备中业务组建立模块的结构示意图；
图8是本发明实施例提出的一种用于在邻近感知网络中进行数据传输的系统的结构示意图；
图9是本发明实施例提出的一种用于在邻近感知网络中进行数据传输的设备的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参考图1，图1是本发明提出的一种用于在邻近感知网络NAN中进行数据传输的方法的第一实施例的流程图。如图所示，本发明实施例中的方法包括：
S101，在邻近感知网络中第一设备和与所述第一设备支持相同业务的至少一个设备建立业务组，并与所述至少一个设备约定所述业务组的发现窗口以及业务窗口，所述第一设备和所述至少一个设备均为所述NAN中的设备。
具体实现中，所述第一设备向所述邻近感知网络中的其他设备发送业务通告信息，以使所述其他设备分别根据所述业务通告信息确认自身是否与所述第一设备支持相同业务；所述第一设备接收与所述第一设备支持相同业务的所述其他设备中的所述至少一个设备分别发送的业务请求消息；所述第一 设备根据所述至少一个设备分别发送的业务请求消息，与所述至少一个设备建立业务组。
另外，第一设备可以发送携带有指示发现窗口和业务窗口的业务通告信息，以与至少一个设备约定所述业务组的发现窗口以及业务窗口；或者第一设备可以发送携带有指示发现窗口的业务通告信息，然后在发现窗口中将业务窗口告知所述至少一个设备；或者第一设备发送携带有指示协商窗口的业务通告信息，在协商窗口中与所述至少一个设备中的第一个加入业务组的设备进行协商，得到业务组的发现窗口和业务窗口。
需要说明的是，NAN中的每个设备可以同时使用多个业务，每个设备使用的多个业务可能又不是完全相同的，因此一个设备可以同时加入多个业务组，每个业务组中多个设备使用相同业务。另外，一个发现窗口以及与该发现窗口对应至少一个业务窗口可以为一个业务处理周期，业务组的发现窗口可以就是每个NAN的DW窗口(如第1，2，3，4，……等DW窗口都是业务组的发现窗口)，也可以是有一定间隔NAN的DW窗口，间隔可以为NAN的1个DW窗口(如第1，3，5，7，……等窗口为业务组的发现窗口)，间隔也可以为NAN的2个DW窗口(如第1，4，7，10，……等窗口为业务组的发现窗口)，或者间隔其他数量的NAN的DW窗口等等。业务组的业务窗口可以由每个发现窗口经过预设时间和/或信道的偏移得到，发现窗口和业务窗口可以在相同的信道，也可以在不同的信道，发现窗口和业务窗口的时长可以根据业务处理时间进行确定。例如：首先每隔512ms或1024ms定义一个发现窗口，然后在每两个发现窗口的时间间隔内定义业务窗口，发现窗口和业务窗口的时长可以为16ms；也可以在整个业务处理时间内定义一个发现窗口和一个业务窗口。
S102，当所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述至少一个设备中的任一个设备发送的唤醒通知时，所述第一设备在所述发现窗口向所述至少一个设备发送唤醒通知，以使所述至少一个设备中处于休眠状态的设备在到达所述业务窗口时切换到唤醒状态，使得所述至少一个设备在到达所述业务窗口时均处于唤醒状态，进而所述第一设备在所述业务窗口与处于唤醒状态的所述至少一个目标 设备进行数据传输。
具体实现中，所述第一设备根据所述业务组标识，将所述唤醒通知发送到所述业务组中的所述至少一个设备。由于NAN中的每个设备可以同时加入多个组，因此第一设备发送携带有业务组标识的唤醒通知，可以根据业务组标识将唤醒通知发送到指定的业务组。其中，唤醒通知可以为服务发现帧，业务组标识可以放置在服务发现帧的第一地址中，第一设备可以将唤醒通知直接发送到指定的业务组；业务组标识也可以放置在服务发现帧的第三地址中，而把广播地址或者特定的组播地址放在第一地址中，指定的业务组中的设备收到该唤醒通知之后，根据第三地址可以确认该唤醒通知是发送给自己的，而其他业务组收到唤醒通知之后，可以确认业务组标识不是属于自己的；业务组标识还可以以信息元素的形式放在唤醒通知中，指定业务组的设备收到唤醒通知后，通过该信息元素便可以知道该唤醒通知是发给自己的。
其中，业务组标识可以为设备的MAC(Medium Access Control，介质访问控制层)地址或其他标识，如业务组的业务名称、业务类别或MAC地址、业务名称、业务类别等经过运算后的值等等。该业务组标识可以由第一个提供业务的设备或第一个查找业务的设备提供，例如：设备A提供音乐播放服务，在NAN中等待其他设备发现，设备B查找音乐播放服务。设备B通过NAN的服务发现机制发现了设备A，于是设备B与设备A建立一个业务组，设备A将设备A的MAC地址发送给设备B，设备A和设备B同时将设备A的MAC地址作为业务组标识。或者设备B可以将设备B的MAC地址发送给设备A，设备A和设备B同时将设备B的MAC地址作为业务组标识。当设备C、设备D等其他设备加入到业务组时，设备A或者设备B可以将业务组标识组发送给其他设备，此时业务组中的所有设备有且只有同一业务组标识。
可选的，在第一设备在所述发现窗口向所述至少一个设备发送唤醒通知之后，并经过一个时间段到达业务窗口时，所述第一设备在所述业务窗口中的寻呼窗口向所述目标设备发送寻呼消息，以使所述目标设备根据所述寻呼消息在所述传输窗口接收所述第一设备发送的数据。其中，业务窗口包括寻呼窗口和传输窗口。另外，当上述至少一个设备中某个/些设备在寻呼窗口没 有接收到业务组中的任何一个设备发送的寻呼消息且自己没有数据要发送时，该某个/些设备可以在到达传输窗口时从唤醒状态切换到休眠状态，从而起到省电的作用。具体实现中，第一设备在发现窗口发送了唤醒通知，第一设备所属的业务组的所有设备都能收到这个唤醒通知，然后它们按照这个唤醒通知，在对应的业务窗口的寻呼窗口中都醒来，然后整个业务组里面的设备根据数据传输的需要进行相互的寻呼，有被寻呼到的设备在接下来的传输窗口中就可以等待接收数据，寻呼别人的设备在接下来的传输窗口就可以发送数据。实际使用的时候，业务组的任何而一个设备都可以是第一设备，只要它能竞争发送了唤醒通知。由于是竞争发送的，所以在发现窗口中，业务组中的其他设备比如第二设备也只能收到第一设备发送的一个唤醒通知。在业务窗口的寻呼窗口中，第一设备可以寻呼它的目标设备，其它设备也可以寻呼它们对应的目标设备。当然，第一设备也可以被寻呼。也就是说，这个方案达到的效果就是业务组中任何一个设备准备要给其他某个或者某些设备发送业务数据的时候，它可以在发现窗口中先发送一个唤醒通知，通知业务组中的所有设备在业务窗口的寻呼窗口中都处于唤醒状态，可以是原来是休眠状态，然后切换到唤醒状态，也可以是一直保持唤醒状态，然后这些设备根据需要相互进行寻呼，接下来再进行传输，并且在发现窗口中业务组中的设备只要有一个发送了唤醒消息，其他的设备就不需要再发送唤醒通知了，只要到了对应的业务窗口的寻呼窗口醒来就可以了。
可选的，第一设备对所述唤醒通知进行加密处理；所述第一设备将所述经过加密处理的唤醒通知发送到所述至少一个设备。其中，加密处理的密钥也可以由第一个提供业务的设备或第一个查找业务的设备提供。
可选的，唤醒通知可以包括业务通知位表，业务通知位表用于指示业务窗口后的多个业务窗口处于唤醒状态以在上述多个处于唤醒状态的业务窗口进行数据传输。例如：业务通知位表可以为8位二进制码，表示发现窗口后的连续8个业务窗口，若8位二进制码的值为01100111，则表示在第2、3、6、7、8个业务窗口进行数据传输，上述至少一个设备收到该业务通知位表之后，在每次到达该业务通知位表指示的业务窗口时处于唤醒状态。
进一步的，第一设备在所述发现窗口以竞争信道资源的方式向所述至少 一个设备发送唤醒通知。竞争信道资源方式如下：采用载波侦听多址访问冲突避免CSMA/CA(Carrier Sense Multiple Access with Collision Avoidance)机制，当监听到信道空闲时间到达预定时间时，开始以生成的一个随机数进行退避，每隔预设的时间间隔将随机数就减1，当随机数减为0时，立即发送唤醒通知，若在随机数未能减小到0时监测到信道运行状态为繁忙，则暂停减小该随机数，当重新监听到信道空闲时间到达预定时间时，继续将随机数就减1。在CSMA/CA机制执行过程中，若第一设备接收到上述至少一个设备发送的唤醒通知，则第一设备不再发送唤醒通知。
需要说明的是，只要业务组的第一设备发送了唤醒通知，该业务中的至少一个设备就不再需要发送唤醒通知。另外，第一设备向至少一个设备发送唤醒通知之后，可以切换到休眠状态也可以保持唤醒状态，上述至少一个设备中某个/些设备确定向所述业务组中的目标设备发送数据但是在信道竞争过程中没有得到信道资源发送唤醒通知，因此该某个/些设备在发现窗口接收到唤醒通知之后可以全部切换到休眠状态，也可以保持唤醒状态；上述至少一个设备中某个/些设备没有数据发送只是等待接收可能的数据，因此该某个/些设备在发现窗口接收到唤醒通知之后可以保持休眠状态，直到到达业务窗口时，业务组中的所有设备均处于唤醒状态。
在本发明实施例中，通过在邻近感知网络中第一设备与第一设备支持相同业务的至少一个设备建立业务组，并与至少一个设备约定业务组的发现窗口以及业务窗口；当第一设备确定向业务组中的目标设备发送数据且在信道竞争过程中没有接收到至少一个设备发送的唤醒通知时，第一设备在发现窗口向至少一个设备发送唤醒通知，以使至少一个设备中处于休眠状态的设备在到达业务窗口时切换到唤醒状态，使得至少一个设备在到达业务窗口时均处于唤醒状态以在业务窗口进行数据传输，从而提高了数据传输的效率，减小了耗电量。
请参考图2，图2是本发明提出的一种用于在邻近感知网络中进行数据传输的方法的第二实施例的流程图，如图所示，本发明实施例中的方法包括：
S201，第一设备向所述邻近感知网络中的其他设备发送业务通告信息。
S202，第二设备根据所述业务通告消息确认所述第二设备是否与所述第一设备支持相同业务。
S203，当所述第二设备与所述第一设备支持相同业务时，第二设备向所述第一设备发送业务请求消息。
S204，第一设备根据所述至少一个设备分别发送的业务请求消息，与所述至少一个设备建立业务组，并与所述至少一个设备约定所述业务组的发现窗口以及业务窗口。
具体实现中，第一设备可以发送携带有指示发现窗口和业务窗口的业务通告信息，以与至少一个设备约定所述业务组的发现窗口以及业务窗口；或者第一设备可以发送携带有指示发现窗口的业务通告信息，然后在发现窗口中将业务窗口告知所述至少一个设备；或者第一设备发送携带有指示协商窗口的业务通告信息，在协商窗口中与所述至少一个设备中的第一个加入业务组的设备进行协商，得到业务组的发现窗口和业务窗口。
需要说明的是，NAN中的每个设备可以同时使用多个业务，每个设备使用的多个业务可能又不是完全相同的，因此一个设备可以同时加入多个业务组，每个业务组中多个设备使用相同业务。另外，一个发现窗口以及与该发现窗口对应至少一个业务窗口可以为一个业务处理周期，业务组的发现窗口可以就是每个NAN的DW窗口(如第1,2,3,4，……等DW窗口都是业务组的发现窗口)，也可以是有一定间隔NAN的DW窗口，间隔可以为NAN的1个DW窗口(如第1,3,5,7，……等窗口为业务组的发现窗口)，间隔也可以为NAN的2个DW窗口(如第1,4,7,10，……等窗口为业务组的发现窗口)，或者间隔其他数量的NAN的DW窗口等等。业务组的业务窗口可以由每个发现窗口经过预设时间和/或信道的偏移得到，发现窗口和业务窗口可以在相同的信道，也可以在不同的信道，发现窗口和业务窗口的时长可以根据业务处理时间进行确定。例如：首先每隔512ms或1024ms定义一个发现窗口，然后在每两个发现窗口的时间间隔内定义业务窗口，发现窗口和业务窗口的时长可以为16ms；也可以在整个业务处理时间内定义一个发现窗口和一个业务窗口。
S205，当所述第一设备确定向所述业务组中的至少一个目标设备发送数 据且在信道竞争过程中没有接收到所述至少一个设备中的任一个设备发送的唤醒通知时，所述第一设备在所述发现窗口向所述至少一个设备发送唤醒通知。
具体实现中，所述第一设备根据所述业务组标识，将所述唤醒通知发送到所述业务组中的所述至少一个设备。由于NAN中的每个设备可以同时加入多个组，因此第一设备发送携带有业务组标识的唤醒通知，可以根据业务组标识将唤醒通知发送到指定的业务组。其中，唤醒通知可以为服务发现帧，业务组标识可以放置在服务发现帧的第一地址中，第一设备可以将唤醒通知直接发送到指定的业务组；业务组标识也可以放置在服务发现帧的第三地址中，而把广播地址或者特定的组播地址放在第一地址中，指定的业务组中的设备收到该唤醒通知之后，根据第三地址可以确认该唤醒通知是发送给自己的，而其他业务组收到唤醒通知之后，可以确认业务组标识不是属于自己的；业务组标识还可以以信息元素的形式放在唤醒通知中，指定业务组的设备收到唤醒通知后，通过该信息元素便可以知道该唤醒通知是发给自己的。
其中，业务组标识可以为设备的MAC地址或其他标识，如业务组的业务名称、业务类别或MAC地址、业务名称、业务类别等经过运算后的值等等。该业务组标识可以由第一个提供业务的设备或第一个查找业务的设备提供，例如：设备A提供音乐播放服务，在NAN中等待其他设备发现，设备B查找音乐播放服务。设备B通过NAN的服务发现机制发现了设备A，于是设备B与设备A建立一个业务组，设备A将设备A的MAC地址发送给设备B，设备A和设备B同时将设备A的MAC地址作为业务组标识。或者，设备B可以将设备B的MAC地址发送给设备A，设备A和设备B同时将设备B的MAC地址作为业务组标识。当设备C、设备D等其他设备加入到业务组时，设备A或者设备B可以将业务组标识组发送给其他设备，此时业务组中的所有设备有且只有同一业务组标识。
可选的，第一设备对所述唤醒通知进行加密处理；所述第一设备将所述经过加密处理的唤醒通知发送到所述至少一个设备。其中，加密处理的密钥也可以由第一个提供业务的设备或第一个查找业务的设备提供。
可选的，唤醒通知可以包括业务通知位表，业务通知位表用于指示业务 窗口后的多个业务窗口处于唤醒状态以在上述多个处于唤醒状态的业务窗口进行数据传输。例如：业务通知位表可以为8位二进制码，表示发现窗口后的连续8个业务窗口，若8位二进制码的值为01100111，则表示在第2、3、6、7、8个业务窗口进行数据传输，上述至少一个设备收到该业务通知位表之后，在每次到达该业务通知位表指示的业务窗口时处于唤醒状态。
进一步的，第一设备在所述发现窗口以竞争信道资源的方式向所述至少一个设备发送唤醒通知。竞争信道资源方式如下：采用载波侦听多址访问冲突避免CSMA/CA(Carrier Sense Multiple Access with Collision Avoidance)机制，当监听到信道空闲时间到达预定时间时，开始以生成的一个随机数进行退避，每隔预设的时间间隔将随机数就减1，当随机数减为0时，立即发送唤醒通知，若在随机数未能减小到0时监测到信道运行状态为繁忙，则暂停减小该随机数，当重新监听到信道空闲时间到达预定时间时，继续将随机数就减1。在CSMA/CA机制执行过程中，若第一设备接收到上述至少一个设备发送的唤醒通知，则第一设备不再发送唤醒通知。
需要说明的是，只要业务组的第一设备发送了唤醒通知，该业务中的至少一个设备就不再需要发送唤醒通知。另外，第一设备向至少一个设备发送唤醒通知之后，可以切换到休眠状态也可以保持唤醒状态，上述至少一个设备中某个/些设备确定向所述业务组中的目标设备发送数据但是在信道竞争过程中没有得到信道资源发送唤醒通知，因此该某个/些设备在发现窗口接收到唤醒通知之后可以全部切换到休眠状态，也可以保持唤醒状态；上述至少一个设备中某个/些设备没有数据发送只是等待接收可能的数据，因此该某个/些设备在发现窗口接收到唤醒通知之后可以保持休眠状态，直到到达业务窗口时，业务组中的所有设备均处于唤醒状态。
S206，第二设备根据所述第一设备发送的唤醒通知，在到达所述业务窗口时处于唤醒状态。
具体实现中，第二设备接收到唤醒通知之后，当第二设备确定没有数据发送时，可以保持休眠状态直到业务窗口时，切换到唤醒状态；当第二设备确定向所述业务组中的目标设备发送数据但是在信道竞争过程中没有得到信道资源发送唤醒通知时，可以保持唤醒状态或者从唤醒状态切换到休眠状态， 然后在到达业务窗口时处于唤醒状态。
S207，第一设备在所述业务窗口中的所述寻呼窗口向所述至少一个目标设备发送寻呼消息。
S208，第二设备根据所述第一设备发送的所述寻呼消息，在所述传输窗口保持唤醒状态，并在所述传输窗口接收所述第一设备发送的数据。
在本发明实施例中，通过在邻近感知网络中第一设备与第一设备支持相同业务的至少一个设备建立业务组，并与至少一个设备约定业务组的发现窗口以及业务窗口；当第一设备确定向业务组中的目标设备发送数据且在信道竞争过程中没有接收到至少一个设备发送的唤醒通知时，第一设备在发现窗口向至少一个设备发送唤醒通知，以使至少一个设备中处于休眠状态的设备在到达业务窗口时切换到唤醒状态，使得至少一个设备在到达业务窗口时均处于唤醒状态以在业务窗口进行数据传输，从而提高了数据传输的效率，减小了耗电量。
请参考图3，图3是本发明提出的一种用于在邻近感知网络中进行数据传输的方法的第三实施例的流程图，如图所示，本发明实施例中的方法包括：
S301，在邻近感知网络中第二设备和与所述第二设备支持相同业务的第一设备建立业务组，并与所述第一设备约定所述业务组的发现窗口以及业务窗口，所述第一设备和所述第二设备均为所述NAN中的设备。
具体实现中，第二设备接收所述第一设备发送的业务通告消息；所述第二设备根据所述业务通告消息确认所述第二设备是否与所述第一设备支持相同业务；当所述第二设备与所述第一设备支持相同业务时，所述第二设备向所述第一设备发送业务请求消息，以使所述第一设备根据所述业务请求消息将所述第二设备加入到所述业务组。
S302，所述第二设备在所述发现窗口接收到仅来自于所述业务组中的所述第一设备发送的唤醒通知，所述唤醒通知为所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述业务组中的其他设备中的任一个设备发送的唤醒通知时，所述第一设备在所述发现窗口向所述业务组中的其他设备发送的唤醒通知。
具体实现中，第一设备在发现窗口发送了唤醒通知，第一设备所属的业务组的所有设备都能收到这个唤醒通知，然后它们按照这个唤醒通知，在对应的业务窗口的寻呼窗口中都醒来，然后整个业务组里面的设备根据数据传输的需要进行相互的寻呼，有被寻呼到的设备在接下来的传输窗口中就可以等待接收数据，寻呼别人的设备在接下来的传输窗口就可以发送数据。实际使用的时候，业务组的任何而一个设备都可以是第一设备，只要它能竞争发送了唤醒通知。由于是竞争发送的，所以在发现窗口中，业务组中的其他设备比如第二设备也只能收到第一设备发送的一个唤醒通知。在业务窗口的寻呼窗口中，第一设备可以寻呼它的目标设备，其它设备也可以寻呼它们对应的目标设备。当然，第一设备也可以被寻呼。也就是说，这个方案达到的效果就是业务组中任何一个设备准备要给其他某个或者某些设备发送业务数据的时候，它可以在发现窗口中先发送一个唤醒通知，通知业务组中的所有设备在业务窗口的寻呼窗口中都处于唤醒状态，可以是原来是休眠状态，然后切换到唤醒状态，也可以是一直保持唤醒状态，然后这些设备根据需要相互进行寻呼，接下来再进行传输，并且在发现窗口中业务组中的设备只要有一个发送了唤醒消息，其他的设备就不需要再发送唤醒通知了，只要到了对应的业务窗口的寻呼窗口醒来就可以了。
具体实现中，第二设备接收到唤醒通知之后，当第二设备确定没有数据发送时，可以保持休眠状态并在到达业务窗口时，切换到唤醒状态；当第二设备确定向所述业务组中的目标设备发送数据但是在信道竞争过程中没有得到信道资源发送唤醒通知时，可以保持唤醒状态或者从唤醒状态切换到休眠状态，然后在到达业务窗口时处于唤醒状态。可选的，当所述第二设备在所述发现窗口没有接收到所述业务组中的其他设备发送的唤醒通知时，所述第二设备获取所述发现窗口中的信道忙闲度，其中，所述信道忙闲度包括但不局限于所述信道的工作时间占所述发现窗口的比值；所述第二设备判断所述发现窗口中的所述信道忙闲度是否超过预设阈值；当所述信道忙闲度超过预设阈值时，所述第二设备在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输。
S303，所述第二设备根据所述第一设备发送的唤醒通知，在到达所述业 务窗口时处于唤醒状态以在所述业务窗口进行数据传输。其中，业务窗口包括寻呼窗口和传输窗口。
具体实现中，当第二设备在到达所述业务窗口中的寻呼窗口时，所述第二设备在所述寻呼窗口接收所述第一设备发送的寻呼消息；所述第二设备根据所述第一设备发送的所述寻呼消息，在所述传输窗口保持唤醒状态，并在所述传输窗口接收所述第一设备发送的数据。当所述第二设备在所述寻呼窗口没有接收到所述业务组中的其他设备发送的寻呼消息且确定向所述业务组中的其他设备没有数据发送时，所述第二设备在到达所述传输窗口时从唤醒状态恢复到休眠状态，从而起到省电的作用。
在本发明实施例中，通过在邻近感知网络中第一设备与第一设备支持相同业务的至少一个设备建立业务组，并与至少一个设备约定业务组的发现窗口以及业务窗口；当第一设备确定向业务组中的目标设备发送数据且在信道竞争过程中没有接收到至少一个设备发送的唤醒通知时，第一设备在发现窗口向至少一个设备发送唤醒通知，以使至少一个设备中处于休眠状态的设备在到达业务窗口时切换到唤醒状态，使得至少一个设备在到达业务窗口时均处于唤醒状态以在业务窗口进行数据传输，从而提高了数据传输的效率，减小了耗电量。
请参考图4，图4是本发明实施例提出的第一设备的结构示意图。如图所示，本发明实施例中的第一设备包括：
业务组建立模块401，用于在邻近感知网络中和与第一设备支持相同业务的至少一个设备建立业务组，并与所述至少一个设备约定所述业务组的发现窗口以及业务窗口，所述第一设备和所述至少一个设备均为所述NAN中的设备。
具体实现中，如图5所示，业务组建立模块401还可以进一步包括：
信息发送单元501，用于向所述邻近感知网络中的其他设备发送业务通告信息，以使所述其他设备分别根据所述业务通告信息确认自身是否与所述第一设备支持相同业务。
信息接收单元502，用于接收与所述第一设备支持相同业务的所述其他 设备中的所述至少一个设备分别发送的业务请求消息。
业务组建立单元503，用于根据所述至少一个设备分别发送的业务请求消息，与所述至少一个设备建立业务组。
另外，第一设备可以发送携带有指示发现窗口和业务窗口的业务通告信息，以与至少一个设备约定所述业务组的发现窗口以及业务窗口；或者第一设备可以发送携带有指示发现窗口的业务通告信息，然后在发现窗口中将业务窗口告知所述至少一个设备；或者第一设备发送携带有指示协商窗口的业务通告信息，在协商窗口中与所述至少一个设备中的第一个加入业务组的设备进行协商，得到业务组的发现窗口和业务窗口。
需要说明的是，NAN中的每个设备可以同时使用多个业务，每个设备使用的多个业务可能又不是完全相同的，因此一个设备可以同时加入多个业务组，每个业务组中多个设备使用相同业务。另外，一个发现窗口以及与该发现窗口对应至少一个业务窗口可以为一个业务处理周期，业务组的发现窗口可以就是每个NAN的DW窗口(如第1，2，3，4，……等DW窗口都是业务组的发现窗口)，也可以是有一定间隔NAN的DW窗口，间隔可以为NAN的1个DW窗口(如第1，3，5，7，……等窗口为业务组的发现窗口)，间隔也可以为NAN的2个DW窗口(如第1，4，7，10，……等窗口为业务组的发现窗口)，或者间隔其他数量的NAN的DW窗口等等。业务组的业务窗口可以由每个发现窗口经过预设时间和/或信道的偏移得到，发现窗口和业务窗口可以在相同的信道，也可以在不同的信道，发现窗口和业务窗口的时长可以根据业务处理时间进行确定。例如：首先每隔512ms或1024ms定义一个发现窗口，然后在每两个发现窗口的时间间隔内定义业务窗口，发现窗口和业务窗口的时长可以为16ms；也可以在整个业务处理时间内定义一个发现窗口和一个业务窗口。
通知发送模块402，用于当所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述至少一个设备中的任一个设备发送的唤醒通知时，在所述发现窗口向所述至少一个设备发送唤醒通知，以使所述至少一个设备中处于休眠状态的设备在到达所述业务窗口时切换到唤醒状态，使得所述至少一个设备在到达所述业务窗口时均处于唤 醒状态，进而所述第一设备在所述业务窗口与处于唤醒状态的所述至少一个目标设备进行数据传输。
具体实现中，所述第一设备根据所述业务组标识，将所述唤醒通知发送到所述业务组中的所述至少一个设备。由于NAN中的每个设备可以同时加入多个组，因此第一设备发送携带有业务组标识的唤醒通知，可以根据业务组标识将唤醒通知发送到指定的业务组。其中，唤醒通知可以为服务发现帧，业务组标识可以放置在服务发现帧的第一地址中，第一设备可以将唤醒通知直接发送到指定的业务组；业务组标识也可以放置在服务发现帧的第三地址中，而把广播地址或者特定的组播地址放在第一地址中，指定的业务组中的设备收到该唤醒通知之后，根据第三地址可以确认该唤醒通知是发送给自己的，而其他业务组收到唤醒通知之后，可以确认业务组标识不是属于自己的；业务组标识还可以以信息元素的形式放在唤醒通知中，指定业务组的设备收到唤醒通知后，通过该信息元素便可以知道该唤醒通知是发给自己的。
其中，业务组标识可以为设备的MAC(Medium Access Control，介质访问控制层)地址或其他标识，如业务组的业务名称、业务类别或MAC地址、业务名称、业务类别等经过运算后的值等等。该业务组标识可以由第一个提供业务的设备或第一个查找业务的设备提供，例如：设备A提供音乐播放服务，在NAN中等待其他设备发现，设备B查找音乐播放服务。设备B通过NAN的服务发现机制发现了设备A，于是设备B与设备A建立一个业务组，设备A将设备A的MAC地址发送给设备B，设备A和设备B同时将设备A的MAC地址作为业务组标识。或者设备B可以将设备B的MAC地址发送给设备A，设备A和设备B同时将设备B的MAC地址作为业务组标识。当设备C、设备D等其他设备加入到业务组时，设备A或者设备B可以将业务组标识组发送给其他设备，此时业务组中的所有设备有且只有同一业务组标识。
可选的，所述第一设备对所述唤醒通知进行加密处理；所述第一设备将所述经过加密处理的唤醒通知发送到所述至少一个设备。其中，加密处理的密钥也可以是由第一个提供业务的设备或第一个查找业务的设备提供。
可选的，唤醒通知可以包括业务通知位表，业务通知位表用于指示业务 窗口后的多个业务窗口处于唤醒状态以在上述多个处于唤醒状态的业务窗口进行数据传输。例如：业务通知位表可以为8位二进制码，表示发现窗口后的连续8个业务窗口，若8位二进制码的值为01100111，则表示在第2、3、6、7、8个业务窗口进行数据传输，上述至少一个设备收到该业务通知位表之后，在每次到达该业务通知位表指示的业务窗口时处于唤醒状态。
进一步的，第一设备在所述发现窗口以竞争信道资源的方式向所述至少一个设备发送唤醒通知。竞争信道资源方式如下：采用载波侦听多址访问冲突避免CSMA/CA(Carrier Sense Multiple Access with Collision Avoidance)机制，当监听到信道空闲时间到达预定时间时，开始以生成的一个随机数进行退避，每隔预设的时间间隔将随机数就减1，当随机数减为0时，立即发送唤醒通知，若在随机数未能减小到0时监测到信道运行状态为繁忙，则暂停减小该随机数，当重新监听到信道空闲时间到达预定时间时，继续将随机数就减1。在CSMA/CA机制执行过程中，若第一设备接收到上述至少一个设备发送的唤醒通知，则第一设备不再发送唤醒通知。
需要说明的是，只要业务组的第一设备发送了唤醒通知，该业务中的至少一个设备就不再需要发送唤醒通知。另外，第一设备向至少一个设备发送唤醒通知之后，可以切换到休眠状态也可以保持唤醒状态，上述至少一个设备中某个/些设备确定向所述业务组中的目标设备发送数据但是在信道竞争过程中没有得到信道资源发送唤醒通知，因此该某个/些设备在发现窗口接收到唤醒通知之后可以全部切换到休眠状态，也可以保持唤醒状态；上述至少一个设备中某个/些设备没有数据发送只是等待接收可能的数据，因此该某个/些设备在发现窗口接收到唤醒通知之后可以保持休眠状态，直到到达业务窗口时，业务组中的所有设备均处于唤醒状态。
可选的，如图4所示，第一设备40还可以进一步包括：
消息发送模块403，用于在所述业务窗口中的所述寻呼窗口向所述目标设备发送寻呼消息，以使所述目标设备根据所述寻呼消息在所述传输窗口接收所述第一设备发送的数据。其中，业务窗口包括寻呼窗口和传输窗口。另外，当上述至少一个设备中某个/些设备在寻呼窗口没有接收到业务组中的任何一个设备发送的寻呼消息且没有数据发送时，该某个/些设备可以在到达传 输窗口时从唤醒状态切换到休眠状态，从而起到省电的作用。
在本发明实施例中，通过在邻近感知网络中第一设备与第一设备支持相同业务的至少一个设备建立业务组，并与至少一个设备约定业务组的发现窗口以及业务窗口；当第一设备确定向业务组中的目标设备发送数据且在信道竞争过程中没有接收到至少一个设备发送的唤醒通知时，第一设备在发现窗口向至少一个设备发送唤醒通知，以使至少一个设备中处于休眠状态的设备在到达业务窗口时切换到唤醒状态，使得至少一个设备在到达业务窗口时均处于唤醒状态以在业务窗口进行数据传输，从而提高了数据传输的效率，减小了耗电量。
请参考图6，图6是本发明实施例提出的第二设备的结构示意图。如图所示，本发明实施例中的第二设备包括：
业务组建立模块601，用于在邻近感知网络中与所述第二设备支持相同业务的第一设备建立业务组，并与所述第一设备约定所述业务组的发现窗口以及业务窗口，所述第一设备和所述第二设备均为所述NAN中的设备。
具体实现中，如图7所示，业务组建立模块601还可以进一步包括：
消息接收单元701，用于接收所述第一设备发送的业务通告消息。
业务确认单元702，用于根据所述业务通告消息确认所述第二设备是否与所述第一设备支持相同业务。
消息发送单元703，用于当所述第二设备与所述第一设备支持相同业务时，向所述第一设备发送业务请求消息，以使所述第一设备根据所述业务请求消息将所述第二设备加入到所述业务组。
通知接收模块602，用于在所述发现窗口接收到仅来自于所述业务组中的所述第一设备发送的唤醒通知，所述唤醒通知为所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述业务组中的其他设备中的任一个设备发送的唤醒通知时，所述第一设备在所述发现窗口向所述业务组中的其他设备发送的唤醒通知。
具体实现中，第二设备接收到唤醒通知之后，当第二设备确定没有数据发送时，可以保持休眠状态并在到达业务窗口时，切换到唤醒状态；当第二 设备确定向所述业务组中的目标设备发送数据但是在信道竞争过程中没有得到信道资源发送唤醒通知时，可以保持唤醒状态或者从唤醒状态切换到休眠状态，然后在到达业务窗口时处于唤醒状态。
状态唤醒模块603，用于根据所述第一设备发送的唤醒通知，在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输。
具体实现中，当第二设备在到达所述业务窗口中的寻呼窗口时，所述第二设备在所述寻呼窗口接收所述第一设备发送的寻呼消息；所述第二设备根据所述第一设备发送的所述寻呼消息，在所述传输窗口保持唤醒状态，并在所述传输窗口接收所述第一设备发送的数据。
可选的，如图6所示，第二设备60还可以进一步包括：
状态恢复模块604，用于当所述第二设备在所述寻呼窗口没有接收到所述业务组中的其他设备发送的寻呼消息且确定向所述业务组中的其他设备没有数据发送时，在到达所述传输窗口时从唤醒状态恢复到休眠状态，从而起到省电的作用。
可选的，如图6所示，第二设备60还可以进一步包括：
状态获取模块605，用于当所述第二设备在所述发现窗口没有接收到所述业务组中的其他设备发送的唤醒通知时，获取所述发现窗口中的信道忙闲度，所述信道忙闲度包括但不局限于所述信道的工作时间占所述发现窗口的比值。
阈值判断模块606，用于判断所述发现窗口中的所述信道忙闲度是否超过预设阈值。
状态确定模块607，用于当所述信道忙闲度超过预设阈值时，在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输。
在本发明实施例中，通过在邻近感知网络中第一设备与第一设备支持相同业务的至少一个设备建立业务组，并与至少一个设备约定业务组的发现窗口以及业务窗口；当第一设备确定向业务组中的目标设备发送数据且在信道竞争过程中没有接收到至少一个设备发送的唤醒通知时，第一设备在发现窗口向至少一个设备发送唤醒通知，以使至少一个设备中处于休眠状态的设备在到达业务窗口时切换到唤醒状态，使得至少一个设备在到达业务窗口时均 处于唤醒状态以在业务窗口进行数据传输，从而提高了数据传输的效率，减小了耗电量。
请参考图8。图8是本发明实施例提出的一种用于在邻近感知网络中进行数据传输的系统的结构示意图，如图所示，本发明实施例中的系统至少包括第一设备40和第二设备60，其中：
第一设备40，用于在邻近感知网络中和与所述第一设备支持相同业务的至少一个设备建立业务组，并与所述至少一个设备约定所述业务组的发现窗口以及业务窗口；所述第一设备和所述至少一个设备均为所述NAN中的设备；当所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述至少一个设备中的任一个设备发送的唤醒通知时，则所述第一设备在所述发现窗口向所述至少一个设备发送唤醒通知，以使所述至少一个设备中处于休眠状态的设备在时间到达所述业务窗口时切换到唤醒状态，使得所述至少一个设备在到达所述业务窗口时均处于唤醒状态，进而所述第一设备在所述业务窗口与处于唤醒状态的所述至少一个目标设备进行数据传输。
第二设备60，当所述第二设备在所述发现窗口没有接收到所述业务组中的其他设备发送的唤醒通知时，所述第二设备获取所述发现窗口中的信道忙闲度，所述信道忙闲度包括所述信道的工作时间占所述发现窗口的比值；所述第二设备判断所述发现窗口中的所述信道忙闲度是否超过预设阈值；当所述信道忙闲度超过预设阈值时，所述第二设备在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输。
图9是本发明实施例提出的一种用于在邻近感知网络中进行数据传输的设备的结构示意图。所述设备为第一设备。如图所示，所述第一设备可以包括：至少一个处理器901，例如CPU，至少一个接收器903，至少一个存储器904，至少一个发送器905，至少一个通信总线902。其中，通信总线902用于实现这些组件之间的连接通信。其中，本发明实施例中装置的接收器903和发送器905可以是有线发送端口，也可以为无线设备，例如包括天线装置，用于 与其他节点设备进行信令或数据的通信。存储器904可以是高速RAM存储器，也可以是非不稳定的存储器(non-volatile memory)，例如至少一个磁盘存储器。存储器904可选的还可以是至少一个位于远离前述处理器901的存储装置。存储器904中存储一组程序代码，且处理器901用于调用存储器中存储的程序代码，用于执行以下操作：
第一设备和与所述第一设备支持相同业务的至少一个设备建立业务组，并与所述至少一个设备约定所述业务组的发现窗口以及业务窗口；所述第一设备和所述至少一个设备均为所述NAN中的设备；
当所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述至少一个设备中的任一个设备发送的唤醒通知时，则所述第一设备在所述发现窗口向所述至少一个设备发送唤醒通知，以使所述至少一个设备中处于休眠状态的设备在时间到达所述业务窗口时切换到唤醒状态，使得所述至少一个设备在到达所述业务窗口时均处于唤醒状态，进而所述第一设备在所述业务窗口与处于唤醒状态的所述至少一个目标设备进行数据传输。
本发明另一实施例提供了一种用于在邻近感知网络中进行数据传输的设备，所述设备为第二设备。所述第二设备可以包括：至少一个处理器，例如CPU，至少一个接收器，至少一个存储器，至少一个发送器，至少一个通信总线。其中，通信总线用于实现这些组件之间的连接通信。其中，本发明实施例中装置的接收器和发送器可以是有线发送端口，也可以为无线设备，例如包括天线装置，用于与其他节点设备进行信令或数据的通信。存储器可以是高速RAM存储器，也可以是非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。存储器可选的还可以是至少一个位于远离前述处理器的存储装置。存储器中存储一组程序代码，且处理器用于调用存储器中存储的程序代码，用于执行以下操作：
第二设备和与所述第二设备支持相同业务的第一设备建立业务组，并与所述第一设备约定所述业务组的发现窗口以及业务窗口；所述第一设备和所述第二设备均为所述NAN中的设备；
所述第二设备在所述发现窗口接收到仅来自于所述业务组中的所述第一设备发送的唤醒通知，所述唤醒通知为所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述业务组中的其他设备中的任一个设备发送的唤醒通知时，所述第一设备在所述发现窗口向所述业务组中的其他设备发送的唤醒通知；
所述第二设备根据所述第一设备发送的唤醒通知，在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输。
需要说明的是，对于前述的各个方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为依据本发明，某一些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详细描述的部分，可以参见其他实施例的相关描述。
还需要说明的是，在本文中，诸如“第一”、“第二”……之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：闪存盘、只读存储器(Read-Only Memory，ROM)、随机存取器(Random Access Memory，RAM)、磁盘或光盘等。
以上对本发明实施例所提供的内容下载方法及相关设备、系统进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (20)

  1. 一种用于在临近感知网络NAN中进行数据传输的方法，其特征在于，所述方法包括：
    第一设备和与所述第一设备支持相同业务的至少一个设备建立业务组，并与所述至少一个设备约定所述业务组的发现窗口以及业务窗口；所述第一设备和所述至少一个设备均为所述NAN中的设备；
    当所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述至少一个设备中的任一个设备发送的唤醒通知时，则所述第一设备在所述发现窗口向所述至少一个设备发送唤醒通知，以使所述至少一个设备中处于休眠状态的设备在时间到达所述业务窗口时切换到唤醒状态，使得所述至少一个设备在到达所述业务窗口时均处于唤醒状态，进而所述第一设备在所述业务窗口与处于唤醒状态的所述至少一个目标设备进行数据传输。
  2. 如权利要求1所述的方法，其特征在于，所述唤醒通知包括所述业务组的业务组标识，所述第一设备在所述发现窗口向所述至少一个设备发送唤醒通知包括：
    所述第一设备根据所述业务组标识，将所述唤醒通知发送到所述业务组中的所述至少一个设备。
  3. 如权利要求1或2所述的方法，其特征在于，所述业务窗口包括寻呼窗口和传输窗口，所述第一设备在所述发现窗口向所述至少一个设备发送唤醒通知之后，还包括：
    所述第一设备在所述业务窗口中的所述寻呼窗口向所述至少一个目标设备发送寻呼消息，以使所述至少一个目标设备根据所述寻呼消息在所述传输窗口接收所述第一设备发送的数据。
  4. 如权利要求1-3任一所述的方法，其特征在于，所述第一设备和与所 述第一设备支持相同业务的至少一个设备建立业务组包括：
    所述第一设备向所述NAN中的其他设备发送业务通告信息，以使所述其他设备分别根据所述业务通告信息确认自身是否与所述第一设备支持相同业务；
    所述第一设备接收与所述第一设备支持相同业务的所述其他设备中的所述至少一个设备分别发送的业务请求消息；
    所述第一设备根据所述至少一个设备分别发送的业务请求消息，与所述至少一个设备建立业务组。
  5. 一种用于在临近感知网络NAN中进行数据传输的方法，其特征在于，所述方法包括：
    第二设备和与所述第二设备支持相同业务的第一设备建立业务组，并与所述第一设备约定所述业务组的发现窗口以及业务窗口；所述第一设备和所述第二设备均为所述NAN中的设备；
    所述第二设备在所述发现窗口接收到仅来自于所述业务组中的所述第一设备发送的唤醒通知，所述唤醒通知为所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述业务组中的其他设备中的任一个设备发送的唤醒通知时，所述第一设备在所述发现窗口向所述业务组中的其他设备发送的唤醒通知；
    所述第二设备根据所述第一设备发送的唤醒通知，在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输。
  6. 如权利要求5所述的方法，其特征在于，所述方法还包括：
    当所述第二设备在所述发现窗口没有接收到所述业务组中的其他设备发送的唤醒通知时，所述第二设备获取所述发现窗口中的信道忙闲度，所述信道忙闲度包括所述信道的工作时间占所述发现窗口的比值；
    所述第二设备判断所述发现窗口中的所述信道忙闲度是否超过预设阈值；
    当所述信道忙闲度超过预设阈值时，所述第二设备在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输。
  7. 如权利要求5或6所述的方法，其特征在于，所述第二设备和与所述第二设备支持相同业务的第一设备建立业务组包括：
    所述第二设备接收所述第一设备发送的业务通告消息；
    所述第二设备根据所述业务通告消息确认所述第二设备是否与所述第一设备支持相同业务；
    当所述第二设备与所述第一设备支持相同业务时，所述第二设备向所述第一设备发送业务请求消息，以使所述第一设备根据所述业务请求消息将所述第二设备加入到所述业务组。
  8. 如权利要求5-7任意一项所述的方法，其特征在于，所述业务窗口包括寻呼窗口和传输窗口，所述第二设备根据所述第一设备发送的唤醒通知，在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输包括：
    所述第二设备在所述寻呼窗口接收所述第一设备发送的寻呼消息；
    所述第二设备根据所述第一设备发送的所述寻呼消息，在所述传输窗口保持唤醒状态，并在所述传输窗口接收所述第一设备发送的数据。
  9. 如权利要求5所述的方法，其特征在于，所述业务窗口包括寻呼窗口和传输窗口，所述第二设备根据所述第一设备发送的唤醒通知，在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输包括：
    当所述第二设备在所述寻呼窗口没有接收到所述业务组中的其他设备发送的寻呼消息且确定向所述业务组中的其他设备没有数据发送时，所述第二设备在到达所述传输窗口时从唤醒状态恢复到休眠状态。
  10. 一种用于在临近感知网络NAN中进行数据传输的设备，所述设备为第一设备，其特征在于，所述第一设备包括：
    业务组建立模块，用于和与所述第一设备支持相同业务的至少一个设备 建立业务组，并与所述至少一个设备约定所述业务组的发现窗口以及业务窗口；所述第一设备和所述至少一个设备均为所述NAN中的设备；
    通知发送模块，用于当所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述至少一个设备中的任一个设备发送的唤醒通知时，则在所述发现窗口向所述至少一个设备发送唤醒通知，以使所述至少一个设备中处于休眠状态的设备在时间到达所述业务窗口时切换到唤醒状态，使得所述至少一个设备在到达所述业务窗口时均处于唤醒状态，进而所述第一设备在所述业务窗口与处于唤醒状态的所述至少一个目标设备进行数据传输。
  11. 如权利要求10所述的设备，其特征在于，所述唤醒通知包括所述业务组的业务组标识，
    所述通知发送模块具体根据所述业务组标识，将所述唤醒通知发送到所述业务组中的所述至少一个设备。
  12. 如权利要求10或11所述的设备，其特征在于，所述业务窗口包括寻呼窗口和传输窗口，所述装置还包括：
    消息发送模块，用于在所述业务窗口中的所述寻呼窗口向所述至少一个目标设备发送寻呼消息，以使所述至少一个目标设备根据所述寻呼消息在所述传输窗口接收所述第一设备发送的数据。
  13. 如权利要求10-12任一所述的设备，其特征在于，所述业务组建立模块包括：
    信息发送单元，用于向所述邻近感知网络中的其他设备发送业务通告信息，以使所述其他设备分别根据所述业务通告信息确认自身是否与所述第一设备支持相同业务；
    信息接收单元，用于接收与所述第一设备支持相同业务的所述其他设备中的所述至少一个设备分别发送的业务请求消息；
    业务组建立单元，用于根据所述至少一个设备分别发送的业务请求消息， 与所述至少一个设备建立业务组。
  14. 一种用于在临近感知网络NAN中进行数据传输的设备，所述设备为第二设备，其特征在于，所述第二设备包括：
    业务组建立模块，用于和与所述第二设备支持相同业务的第一设备建立业务组，并与所述第一设备约定所述业务组的发现窗口以及业务窗口；所述第一设备和所述第二设备均为所述NAN中的设备；
    通知接收模块，用于在所述发现窗口接收到仅来自于所述业务组中的所述第一设备发送的唤醒通知，所述唤醒通知为所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在信道竞争过程中没有接收到所述业务组中的其他设备中的任一个设备发送的唤醒通知时，所述第一设备在所述发现窗口向所述业务组中的其他设备发送的唤醒通知；
    状态唤醒模块，用于根据所述第一设备发送的唤醒通知，在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输。
  15. 如权利要求14所述的设备，其特征在于，所述第二设备还包括：
    状态获取模块，用于当所述第二设备在所述发现窗口没有接收到所述业务组中的其他设备发送的唤醒通知时，获取所述发现窗口中的信道忙闲度，所述信道忙闲度包括所述信道的工作时间占所述发现窗口的比值；
    阈值判断模块，用于判断所述发现窗口中的所述信道忙闲度是否超过预设阈值；
    状态确定模块，用于当所述信道忙闲度超过预设阈值时，在到达所述业务窗口时处于唤醒状态以在所述业务窗口进行数据传输。
  16. 如权利要求14或15所述的设备，其特征在于，所述业务组建立模块包括：
    消息接收单元，用于接收所述第一设备发送的业务通告消息；
    业务确认单元，用于根据所述业务通告消息确认所述第二设备是否与所述第一设备支持相同业务；
    消息发送单元，用于当所述第二设备与所述第一设备支持相同业务时，向所述第一设备发送业务请求消息，以使所述第一设备根据所述业务请求消息将所述第二设备加入到所述业务组。
  17. 如权利要求14-16任意一项所述的设备，其特征在于，所述业务窗口包括寻呼窗口和传输窗口，
    所述状态唤醒模块具体用于在所述寻呼窗口接收所述第一设备发送的寻呼消息；根据所述第一设备发送的所述寻呼消息，在所述传输窗口保持唤醒状态，并在所述传输窗口接收所述第一设备发送的数据。
  18. 如权利要求14所述的设备，其特征在于，所述业务窗口包括寻呼窗口和传输窗口，所述装置还包括：
    状态恢复模块，用于当所述第二设备在所述寻呼窗口没有接收到所述业务组中的其他设备发送的寻呼消息且确定向所述业务组中的其他设备没有数据发送时，在到达所述传输窗口时从唤醒状态恢复到休眠状态。
  19. 一种用于在临近感知网络NAN中进行数据传输的系统，其特征在于，所述系统至少包括：第一设备和第二设备，所述第一设备包括如权利要求10～13所述的任一装置，所述第二设备包括如权利要求14～18所述的任一装置。
  20. 一种用于在临近感知网络NAN中进行数据传输的设备，所述设备为第一设备，其特征在于，所述第一设备包括网络接口、存储器以及处理器，其中，存储器中存储一组程序代码，且处理器用于调用存储器中存储的程序代码，用于执行以下操作：
    第一设备和与所述第一设备支持相同业务的至少一个设备建立业务组，并与所述至少一个设备约定所述业务组的发现窗口以及业务窗口；所述第一设备和所述至少一个设备均为所述NAN中的设备；
    当所述第一设备确定向所述业务组中的至少一个目标设备发送数据且在 信道竞争过程中没有接收到所述至少一个设备中的任一个设备发送的唤醒通知时，则所述第一设备在所述发现窗口向所述至少一个设备发送唤醒通知，以使所述至少一个设备中处于休眠状态的设备在世界到达所述业务窗口时切换到唤醒状态，使得所述至少一个设备在到达所述业务窗口时均处于唤醒状态，进而所述第一设备在所述业务窗口与处于唤醒状态的所述至少一个目标设备进行数据传输。
PCT/CN2015/073233 2015-02-17 2015-02-17 一种用于在邻近感知网络中进行数据传输的方法及相关设备 WO2016131196A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2015/073233 WO2016131196A1 (zh) 2015-02-17 2015-02-17 一种用于在邻近感知网络中进行数据传输的方法及相关设备
CN201580023415.3A CN106465130B (zh) 2015-02-17 2015-02-17 一种用于在邻近感知网络中进行数据传输的方法及相关设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/073233 WO2016131196A1 (zh) 2015-02-17 2015-02-17 一种用于在邻近感知网络中进行数据传输的方法及相关设备

Publications (1)

Publication Number Publication Date
WO2016131196A1 true WO2016131196A1 (zh) 2016-08-25

Family

ID=56692269

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/073233 WO2016131196A1 (zh) 2015-02-17 2015-02-17 一种用于在邻近感知网络中进行数据传输的方法及相关设备

Country Status (2)

Country Link
CN (1) CN106465130B (zh)
WO (1) WO2016131196A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019139627A1 (en) * 2018-01-15 2019-07-18 Nokia Technologies Oy Service discovery in wireless network

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109257706B (zh) * 2018-08-10 2021-03-02 Oppo广东移动通信有限公司 信息推送方法及相关设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1898900A (zh) * 2003-12-16 2007-01-17 英特尔公司 在无线局域网中节电
CN101340313A (zh) * 2008-08-12 2009-01-07 中兴通讯股份有限公司 可实施节能降耗控制的分布式系统及其节能降耗控制方法
US20110289332A1 (en) * 2010-05-24 2011-11-24 Advanced Micro Devices, Inc. Method and apparatus for power management in a multi-processor system
CN103914295A (zh) * 2013-01-09 2014-07-09 宏达国际电子股份有限公司 唤醒事件管理方法、唤醒事件管理装置及其程序产品
US20140293851A1 (en) * 2013-03-27 2014-10-02 Qualcomm Incorporated Systems and methods for synchronization within a neighborhood aware network

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140328168A1 (en) * 2013-05-06 2014-11-06 Minyoung Park Apparatus, system and method of adjusting transmission intervals for discovery frames

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1898900A (zh) * 2003-12-16 2007-01-17 英特尔公司 在无线局域网中节电
CN101340313A (zh) * 2008-08-12 2009-01-07 中兴通讯股份有限公司 可实施节能降耗控制的分布式系统及其节能降耗控制方法
US20110289332A1 (en) * 2010-05-24 2011-11-24 Advanced Micro Devices, Inc. Method and apparatus for power management in a multi-processor system
CN103914295A (zh) * 2013-01-09 2014-07-09 宏达国际电子股份有限公司 唤醒事件管理方法、唤醒事件管理装置及其程序产品
US20140293851A1 (en) * 2013-03-27 2014-10-02 Qualcomm Incorporated Systems and methods for synchronization within a neighborhood aware network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019139627A1 (en) * 2018-01-15 2019-07-18 Nokia Technologies Oy Service discovery in wireless network

Also Published As

Publication number Publication date
CN106465130B (zh) 2019-11-19
CN106465130A (zh) 2017-02-22

Similar Documents

Publication Publication Date Title
JP6321295B2 (ja) 近隣認識ネットワークのデバイス間の通信
WO2018077186A1 (zh) 一种数据通信方法及装置
JP6275925B2 (ja) 近隣認識ネットワークのデバイス間の通信
WO2018192374A1 (zh) 一种站点唤醒方法及站点
JP6392228B2 (ja) サービスを広告するように構成される発見メッセージを送信するためにモバイルデバイスをトリガするための方法
US9008062B2 (en) Systems and methods for AP discovery with FILS beacon
JP4579947B2 (ja) 無線ｌａｎ省電力制御方法および無線基地局装置並びに無線端末装置
CN106688258B (zh) 用于nan的无线资源调度方法和装置
WO2017185867A1 (zh) 一种进行业务传输的方法和终端
WO2021223683A1 (zh) 基于非同时收发多链路设备的通信方法及装置
JP7462766B2 (ja) サイドリンク通信のための方法およびデバイス
WO2018040817A1 (zh) 一种无线局域网中唤醒帧的传输方法及装置
JP2017536747A (ja) 近隣認識ネットワークのデバイス間の通信
WO2018099315A1 (zh) 一种站点关联方法及装置
WO2015143916A1 (zh) 移动台、中转台、集群通信系统及其方法
JP2018520578A (ja) ネットワークにおけるトラフィック広告
WO2018068716A1 (zh) 传输唤醒帧的方法和设备
CN103327579A (zh) 休眠方法及装置
US11218961B2 (en) Power saving for wireless device
WO2018137457A1 (zh) 一种寻呼优化的方法和装置
WO2019191984A1 (zh) 一种信号发送方法、网络设备及终端设备
CN107534848B (zh) 一种以分散和省电方式进行数据通信的系统和方法
CN107432043B (zh) 一种nan设备之间的寻呼方法及nan设备
CN106537955B (zh) 数据传输方法和设备
WO2015100971A1 (zh) 一种d2d通讯方法及终端

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15882335

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15882335

Country of ref document: EP

Kind code of ref document: A1