CN108551668B - Information transmission method, device, equipment and storage medium - Google Patents

Information transmission method, device, equipment and storage medium Download PDF

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Publication number
CN108551668B
CN108551668B CN201810272506.6A CN201810272506A CN108551668B CN 108551668 B CN108551668 B CN 108551668B CN 201810272506 A CN201810272506 A CN 201810272506A CN 108551668 B CN108551668 B CN 108551668B
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node device
node
interval
information
target
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CN108551668A (en
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文振兴
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Hisense Visual Technology Co Ltd
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Hisense Visual Technology Co Ltd
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Priority to PCT/CN2018/120721 priority patent/WO2019184455A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H04W28/14—Flow control between communication endpoints using intermediate storage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • 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

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

Abstract

The embodiment of the invention provides an information transmission method, an information transmission device, information transmission equipment and a storage medium, wherein the method comprises the following steps: the method comprises the steps that first node equipment sends a friend request frame to second node equipment before entering a sleep state, wherein the friend request frame comprises a minimum awakening interval and a maximum awakening interval after the first node equipment enters the sleep state; the first node equipment receives a friend granting frame returned by the second node equipment and establishes a friendship relationship with the second node equipment, wherein the friend granting frame comprises a target awakening interval, and the target awakening interval is greater than or equal to a minimum awakening interval and less than or equal to a maximum awakening interval; after the first node equipment enters the sleep state, the first node equipment is awakened once at an interval target awakening interval and carries out information interaction with the second node equipment. The embodiment of the invention can improve the timeliness of information transmission in Bluetooth networking.

Description

Information transmission method, device, equipment and storage medium
Technical Field
The embodiments of the present invention relate to the field of communications technologies, and in particular, to an information transmission method, apparatus, device, and storage medium.
Background
In the latest standardized protocol of Bluetooth networking, a multipoint-to-multipoint network topology architecture and a broadcast-based information transmission mode are defined, the limitation that the traditional Bluetooth master-slave type architecture cannot realize multipoint-to-multipoint information transmission is broken through, a large-range network interconnection architecture is easy to establish, and the requirement of the application of the Internet of things is quite met. In the standard of bluetooth networking, two special function nodes are defined: the Low Power consumption node (Low Power node) and the friend node (friend node), in order to achieve the function of saving Power, before the Low Power consumption node closes the antenna receiving function and enters sleep, the Low Power consumption node can search for a proper friend node by a specific flow, after Friendship relation (Friendship) is established between two parties, the friend node can help to cache all information destined for the Low Power consumption node in the Bluetooth networking in the time period when the Low Power consumption node enters the sleep state, and when the Low Power consumption node returns to a normal working state, the Low Power consumption node can request the friend node to transmit all information cached by the help again, so that the requirement of sleep Power saving is met, and the correctness of information transmission is ensured.
However, in such an architecture design, the wake-up time of the low-power node is not controllable, and it cannot be determined when the information cached by the friend node can be transferred to the low-power node, so that the timeliness of the network control information cannot be ensured.
Disclosure of Invention
The embodiment of the invention provides an information transmission method, an information transmission device, information transmission equipment and a storage medium, which are used for improving the timeliness of information transmission in Bluetooth networking.
A first aspect of an embodiment of the present invention provides an information transmission method, including:
the method comprises the steps that a first node device sends a friend request frame to a second node device before entering a sleep state, wherein the friend request frame comprises a minimum awakening interval and a maximum awakening interval after the first node device enters the sleep state;
the first node device receives a friend grant frame returned by the second node device, and establishes a friendship relationship with the second node device, so that after the first node device enters the sleep state, the second node device caches information of a target reaching the first node device, wherein the friend grant frame comprises a target wake-up interval, and the target wake-up interval is greater than or equal to the minimum wake-up interval and less than or equal to the maximum wake-up interval;
and after the first node equipment enters the sleep state, the first node equipment is awakened once at the interval of the target awakening interval and carries out information interaction with the second node equipment.
Optionally, the friend request frame further includes a first cache timeout time, where the first cache timeout time is a maximum storage time of information, which is requested by the first node device to the second node device and arrives at the first node, in the second node.
Optionally, the friend grant frame further includes a second cache timeout time, and when the time that the information of the target reaching the first node device is stored in the second node device exceeds the second cache timeout time, the second node device deletes the information.
Optionally, the second cache timeout time is an integer multiple of the target wake-up interval.
Optionally, the method further includes:
when the first node equipment enters a sleep state, sending a sleep notification frame to the second node equipment, so that the second node equipment starts to cache information of a target reaching the first node equipment after receiving the sleep notification frame, and sending the cached information to the first node equipment at intervals of the target awakening interval.
Optionally, after entering the sleep state, the first node device wakes up once at the target wake-up interval, and performs information interaction with the second node device, including:
when the target awakening interval arrives, the first node equipment awakens and receives a cache information notification frame sent by the second node equipment when the target awakening interval arrives, wherein the cache information notification frame comprises a unicast address of the first node equipment and an identifier indicating whether cache information exists or not;
and if the cache information notification frame comprises an identifier corresponding to the cache information, the first node equipment receives the cache information.
A second aspect of an embodiment of the present invention provides an information transmission apparatus, including:
a first sending module, configured to send a friend request frame to a second node device before a first node device enters a sleep state, where the friend request frame includes a minimum wake-up interval and a maximum wake-up interval after the first node device enters the sleep state;
a first receiving module, configured to receive a friend grant frame returned by the second node device;
an establishing module, configured to establish a friendship relationship between the first node device and the second node device, so that after the first node device enters the sleep state, the second node device caches information that a target reaches the first node device, where the friend grant frame includes a target wake-up interval, and the target wake-up interval is greater than or equal to the minimum wake-up interval and less than or equal to the maximum wake-up interval;
and the awakening module is used for awakening the first node equipment once at intervals of the target awakening interval after the first node equipment enters the sleep state so as to enable the first node equipment to perform information interaction with the second node equipment.
Optionally, the friend request frame further includes a first cache timeout time, where the first cache timeout time is a maximum storage time of information, which is requested by the first node device to the second node device and arrives at the first node, in the second node.
Optionally, the friend grant frame further includes a second cache timeout time, and when the time that the information of the target reaching the first node device is stored in the second node device exceeds the second cache timeout time, the second node device deletes the information.
Optionally, the second cache timeout time is an integer multiple of the target wake-up interval.
Optionally, the apparatus further comprises:
and the second sending module is used for sending a sleep notification frame to the second node equipment when the first node equipment enters a sleep state, so that the second node equipment starts to cache information of a target reaching the first node equipment after receiving the sleep notification frame, and sends the cached information to the first node equipment at intervals of the target awakening interval.
Optionally, the apparatus further comprises:
a second receiving module, configured to receive, when the target wake-up interval arrives and the first node device wakes up, a cache information notification frame sent by the second node device when the target wake-up interval arrives, where the cache information notification frame includes a unicast address of the first node device and an identifier indicating whether cache information exists;
a third receiving module, configured to receive the cache information when the cache information notification frame includes an identifier corresponding to the cache information.
A third aspect of the embodiments of the present invention provides a node device, including:
a processor;
the Bluetooth component is used for establishing a Bluetooth network with other Bluetooth equipment;
a memory for storing executable instructions of the processor;
the method of the first aspect may be implemented when the processor executes the executable instructions.
A fourth aspect of embodiments of the present invention provides a computer-readable storage medium, which includes instructions, and when the instructions are executed on the computer, the computer can implement the method according to the first aspect.
The embodiment of the invention is suitable for Bluetooth networking, before a first node device in the Bluetooth networking enters a sleep state, a friend request frame is sent to the second node device to request the second node device to establish a friendship relationship, and the friend request frame carries a minimum awakening interval and a maximum awakening interval supported by the first node device after the first node device enters the sleep state, when the first node device receives a friend grant frame returned by the second node device, the first node device establishes the friendship relationship with the second node device, so that when the first node device enters the sleep state, the second node device can cache information of a target reaching the first node device in the Bluetooth networking, after the first node device enters the sleep state, the first node device periodically awakens from the sleep state according to the target awakening interval carried in the friend grant frame returned by the second node device, and performs information interaction with the second node device at each wake-up. The first node device carries the minimum awakening interval and the maximum awakening interval supported after the first node device enters the sleep state when sending the friend request frame to the second node device, so that the second node device can determine the target awakening interval within the range from the minimum awakening interval to the maximum awakening interval according to the minimum awakening interval, the maximum awakening interval and the self caching capacity, and therefore the target awakening interval is carried in the friend grant frame to be sent to the first node device, the first node device can be awakened from the sleep state periodically according to the target awakening interval and carries out information interaction with the second node device, information cached in the second node device can be sent to the first node device in time, and timeliness of information transmission in Bluetooth networking is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of an information transmission method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a sleep notification frame according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a buffering information notification frame according to an embodiment of the present invention;
fig. 4 is a flowchart of an information transmission method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention, are intended to cover non-exclusive inclusions, e.g., a process or an apparatus that comprises a list of steps is not necessarily limited to those structures or steps expressly listed but may include other steps or structures not expressly listed or inherent to such process or apparatus.
The embodiment of the invention provides an information transmission method which can be applied to Bluetooth networking. The method may be performed by an information transmission apparatus. Referring to fig. 1, fig. 1 is a flowchart of an information transmission method according to an embodiment of the present invention, and as shown in fig. 1, the method includes the following steps:
step 101, a first node device sends a friend request frame to a second node device before entering a sleep state, where the friend request frame includes a minimum wake-up interval and a maximum wake-up interval after the first node device enters the sleep state.
The bluetooth networking according to this embodiment refers to a wireless mesh network formed by using bluetooth devices as network nodes, and taking bluetooth networking as an example, the first node device and the second node device according to this embodiment may be specifically bluetooth devices included in bluetooth networking. In particular, the first node device may be specifically a bluetooth low energy device in a bluetooth networking, and the second node device may be specifically a bluetooth device serving as a friend node in the bluetooth networking. In this embodiment, the second node device may specifically refer to a bluetooth device as a friend node, or may refer to multiple bluetooth devices as friend nodes, that is, the first node device in this embodiment sends a friend request frame to the second node device before entering the sleep state, where the method includes: the first node device sends a friend request frame to one or more friend nodes.
The friend request frame related to the embodiment is added with two columns on the basis of the friend request frame of the existing bluetooth networking, and the two columns respectively fill in a minimum wake-up interval and a maximum wake-up interval supported by the first node device after the first node device enters the sleep state. For example, the minimum wake-up interval is 50 minutes, and the maximum wake-up interval is 100 minutes, which means that the first node device may wake up once in an interval of 50-100 minutes. When the second node device receives the friend request frame sent by the first node device, determining a time between the minimum awakening interval and the maximum awakening interval as a target awakening interval according to the self cache capacity, and sending the target awakening interval to the first node device by carrying the target awakening interval in the friend grant frame. Of course, the target wake-up interval may be equal to the minimum wake-up interval or the maximum wake-up interval, as long as the range from the minimum wake-up interval to the maximum wake-up interval is not exceeded. For example, the second node device may determine the value of the target wake-up interval by comprehensively considering the minimum wake-up interval, the maximum wake-up interval, the current remaining buffer space, and the number of bluetooth low energy devices with which friendship has been established. Of course, this is merely an example, and this embodiment is not specifically limited to the method for determining the target wake-up interval by the second node device.
Step 102, the first node device receives a friend grant frame returned by the second node device, and establishes a friendship relationship with the second node device, so that after the first node device enters the sleep state, the second node device caches information of a target reaching the first node device, wherein the friend grant frame includes a target wake-up interval, and the target wake-up interval is greater than or equal to the minimum wake-up interval and less than or equal to the maximum wake-up interval.
Since the second node device in this embodiment may include one or more bluetooth devices as friend nodes, when the second node device includes only one bluetooth device as friend node, the first node device establishes a friendship relationship with the second node device according to the friend grant frame after receiving the friend grant frame of the second node device, and periodically wakes up from the sleep state according to the target wake-up interval carried in the friend grant frame after entering the sleep state, for example, when the target wake-up interval is 70 minutes, the first node device wakes up once every 70 minutes. When the second node device includes a plurality of bluetooth devices as friend nodes, and the first node device receives friend grant frames returned from a plurality of friend nodes in the second node device, selecting one friend node from the plurality of friend nodes to establish a friendship relationship, for example, selecting a friend node corresponding to the friend grant frame received first to establish a friendship relationship, which is of course only illustrated and not limited herein. For example, in practice, the friend node corresponding to the friend grant frame with the largest target wake-up interval can be selected to establish the friendship relationship.
Further, in this embodiment, the second node device starts to cache information of the target reaching the first node device from when the first node device enters sleep, and sends the information to the first node device when the first node device wakes up each time.
Optionally, in order to enable the second node device to accurately know when the first node device enters the sleep state and avoid that the second node device misses information that needs to be cached, the processing method of this embodiment at least includes any one of the following:
in a first possible manner, when the first node device sends a friend request frame to the second node device, the first node device adds information of when it enters a sleep state to the friend request frame.
In another possible manner, when the first node apparatus enters the sleep state, a sleep notification frame is transmitted to the second node apparatus to notify the second node apparatus that it enters the sleep state. For example, fig. 2 is a schematic structural diagram of a sleep notification frame according to an embodiment of the present invention, where the sleep notification frame includes a unicast address field and a sleep state field, and when a first node device enters a sleep state, adds a unicast address of the first node device under the unicast address field, and adds a value indicating that the first node device enters the sleep state under the sleep state field, and after receiving the sleep notification frame, a second node device starts to cache information that a target reaches the first node device, and sends the cached information to the first node device at an interval target wakeup interval.
Of course, the two possible ways are only two possible ways illustrated for clarity, and an actual scenario may include not only the two possible ways.
And 103, after the first node equipment enters the sleep state, waking up the first node equipment once at the interval of the target wake-up interval, and performing information interaction with the second node equipment.
Optionally, the information interaction manner between the first node device and the second node device when the first node device wakes up each time includes the following:
in a possible mode, when a target wake-up interval arrives, a cache information notification frame is actively sent to the first node device, and the cache information notification frame carries a unicast address of the first node device and an identifier used for indicating whether cache information exists. To inform the first node device whether there is cached information. If the cache information exists, the first node equipment receives the cache information sent to the first node equipment by the second node equipment, and if the cache information does not exist, the first node equipment enters the sleep state again. For example, the format of the buffering information notification frame may be embodied in the form shown in fig. 3. The field of the cache status in fig. 3 is filled with a flag indicating whether there is cache information. Of course, fig. 3 is only an illustration and not the only limitation on the buffering information notification frame.
In another possible manner, after the first node device wakes up, a notification message is sent to the second node device to notify the second node device that it has woken up from the wake-up state, and further, the second node device performs a process similar to the first possible manner.
The embodiment is suitable for Bluetooth networking, before the first node equipment in the Bluetooth networking enters the sleep state, requesting the second node device to establish the friendship relationship by transmitting a friend request frame to the second node device, and the friend request frame carries the minimum wake-up interval and the maximum wake-up interval supported by the first node device after entering the sleep state, when the first node equipment receives the friend grant frame returned by the second node equipment, the first node equipment establishes the friendship relationship with the second node equipment, so that when the first node equipment enters the sleep state, the second node equipment caches the information of the target reaching the first node equipment in the Bluetooth networking, after the first node equipment enters the sleep state, and according to a target awakening interval carried in a friend grant frame returned by the second node equipment, awakening from a sleep state periodically, and performing information interaction with the second node equipment during awakening each time. The first node device carries the minimum awakening interval and the maximum awakening interval supported after the first node device enters the sleep state when sending the friend request frame to the second node device, so that the second node device can determine the target awakening interval within the range from the minimum awakening interval to the maximum awakening interval according to the minimum awakening interval, the maximum awakening interval and the self capacity, and therefore the target awakening interval is carried in the friend grant frame to be sent to the first node device, the first node device can be awakened from the sleep state regularly according to the target awakening interval and carries out information interaction with the second node device, information cached in the second node device can be sent to the first node device in time, and timeliness of information transmission in Bluetooth networking is improved.
Fig. 4 is a flowchart of an information transmission method according to an embodiment of the present invention, and as shown in fig. 4, on the basis of the embodiment of fig. 1, the method includes the following steps:
step 401, before entering a sleep state, a first node device sends a friend request frame to a second node device, where the friend request frame includes a minimum wakeup interval, a maximum wakeup interval, and a first cache timeout time after the first node device enters the sleep state, where the first cache timeout time is a maximum storage time of information in the second node, which is requested by the first node device to the second node device and is targeted to the first node.
Step 402, the first node device receives a friend grant frame returned by the second node device, and establishes a friendship relationship with the second node device, where the friend grant frame includes a target wake-up interval and a second cache timeout time, and when the time stored in the second node device for the information of the target arriving at the first node device exceeds the second cache timeout time, the second node device deletes the information.
And 403, after the first node device enters the sleep state, waking up the first node device once at the interval of the target wake-up interval, and performing information interaction with the second node device.
In this embodiment, the first cache timeout time may be the same as or different from the second cache timeout time, where the second cache timeout time is determined by the second node device according to its own caching capability (the manner of determining its own caching capability by the second node device is similar to that in the embodiment of fig. 1), and optionally, when the own caching capability of the second node device exceeds the first cache timeout time, the second cache timeout time may be preferably set to be equal to the first cache timeout time. Of course, the setting of the second buffer timeout time may also be set according to specific needs, and this embodiment is not limited. In this embodiment, the second cache timeout time is specifically configured to be an integer multiple of the target wake-up interval.
In addition, for the first node device, generally, the first cache timeout time requested by the first node device is an optimal choice for the first cache timeout time, if the second node device can meet the requirement of the first cache time, the data can be guaranteed not to be lost to the greatest extent, if the second node device cannot meet the requirement, the data can only be backed off, and then, other times are selected.
In an actual scenario, when the first node device cannot receive the cache information notification frame sent by the second node device due to abnormal reasons such as sudden power failure and abnormal sleep wakeup process, the second node device stores the cache information within a second cache timeout period, and within the second cache timeout period, if the first node device recovers from the abnormal reasons, the cache information is sent to the first node device and then deleted, and if the cache information cannot be transmitted to the first node device until the second cache timeout period arrives, the cache information is deleted.
According to the embodiment of the invention, by negotiating the timeout time of the cache information, even if the first node equipment cannot receive the cache information notification frame sent by the second node equipment due to abnormal reasons such as sudden power failure, abnormal sleep awakening process and the like, the information of the target reaching the first node equipment can be completely cached in the second node equipment within the second cache timeout time determined by negotiation, and the cache information is deleted from the second node equipment only when the second cache timeout time is reached and the first node equipment is still not recovered from the abnormal reasons, so that the reliability of information transmission in the Bluetooth network is improved.
Fig. 5 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention, and as shown in fig. 5, the apparatus includes:
a first sending module 11, configured to send a friend request frame to a second node device before a first node device enters a sleep state, where the friend request frame includes a minimum wake-up interval and a maximum wake-up interval after the first node device enters the sleep state;
a first receiving module 12, configured to receive a friend grant frame returned by the second node device;
an establishing module 13, configured to establish a friendship relationship between the first node device and the second node device, so that after the first node device enters the sleep state, the second node device caches information that a target reaches the first node device, where the friend grant frame includes a target wake-up interval, and the target wake-up interval is greater than or equal to the minimum wake-up interval and less than or equal to the maximum wake-up interval;
and a wake-up module 14, configured to wake up the first node device once at an interval of the target wake-up interval after the first node device enters the sleep state, so that the first node device and the second node device perform information interaction.
Optionally, the apparatus further comprises:
and the second sending module is used for sending a sleep notification frame to the second node equipment when the first node equipment enters a sleep state, so that the second node equipment starts to cache information of a target reaching the first node equipment after receiving the sleep notification frame, and sends the cached information to the first node equipment at intervals of the target awakening interval.
Optionally, the apparatus further comprises:
a second receiving module, configured to receive, when the target wake-up interval arrives and the first node device wakes up, a cache information notification frame sent by the second node device when the target wake-up interval arrives, where the cache information notification frame includes a unicast address of the first node device and an identifier indicating whether cache information exists;
a third receiving module, configured to receive the cache information when the cache information notification frame includes an identifier corresponding to the cache information.
The information transmission apparatus provided in this embodiment can be used to execute the method in the embodiment in fig. 1, and the execution manner and the beneficial effects are similar, and are not described herein again.
An embodiment of the present invention further provides an information transmission apparatus, where on the basis of the embodiment in fig. 5, the friend request frame further includes a first cache timeout time, where the first cache timeout time is a maximum storage time of information, which is requested by a first node device from a second node device and arrives at the first node, in the second node.
Optionally, the friend grant frame further includes a second cache timeout time, and when the time that the information of the target reaching the first node device is stored in the second node device exceeds the second cache timeout time, the second node device deletes the information.
Optionally, the second cache timeout time is an integer multiple of the target wake-up interval.
The information transmission apparatus provided in this embodiment can be used to execute the method in the embodiment in fig. 4, and the execution manner and the beneficial effects are similar, and are not described herein again.
An embodiment of the present invention further provides a node device, including: a processor;
the Bluetooth component is used for establishing a Bluetooth network with other Bluetooth equipment;
a memory for storing executable instructions of the processor;
when the processor executes the executable instructions, the technical solution of the above method embodiment can be implemented.
The embodiment of the present invention further provides a computer-readable storage medium, which includes instructions, and when the instructions are run on the computer, the computer can implement the technical solution of the above method embodiment.
Finally, it should be noted that, as one of ordinary skill in the art will appreciate, all or part of the processes of the methods of the embodiments described above may be implemented by hardware related to instructions of a computer program, where the computer program may be stored in a computer-readable storage medium, and when executed, the computer program may include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), a Random Access Memory (RAM), or the like.
Each functional unit in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may also be stored in a computer readable storage medium. The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An information transmission method, comprising:
the method comprises the steps that a first node device sends a friend request frame to a second node device before entering a sleep state, wherein the friend request frame comprises a minimum awakening interval and a maximum awakening interval after the first node device enters the sleep state;
the first node device receives a friend grant frame returned by the second node device, and establishes a friendship relationship with the second node device, so that after the first node device enters the sleep state, the second node device caches information of a target reaching the first node device, wherein the friend grant frame comprises a target wake-up interval, and the target wake-up interval is greater than or equal to the minimum wake-up interval and less than or equal to the maximum wake-up interval;
and after the first node equipment enters the sleep state, the first node equipment is awakened once at the interval of the target awakening interval and carries out information interaction with the second node equipment.
2. The method as claimed in claim 1, wherein the friend request frame further includes a first cache timeout time, and the first cache timeout time is a maximum storage time of information in the second node, which is requested by the first node device from the second node device and is targeted to the first node.
3. The method as claimed in claim 1, wherein the friend grant frame further includes a second cache timeout time, and when the time that the information of the target reaching the first node device is stored in the second node device exceeds the second cache timeout time, the second node device deletes the information.
4. The method of claim 3, wherein the second buffer timeout time is an integer multiple of the target wake-up interval.
5. The method according to any one of claims 1-4, further comprising:
when the first node equipment enters a sleep state, sending a sleep notification frame to the second node equipment, so that the second node equipment starts to cache information of a target reaching the first node equipment after receiving the sleep notification frame, and sending the cached information to the first node equipment at intervals of the target awakening interval.
6. The method of claim 5, wherein the first node device wakes up once every target wake-up interval after entering the sleep state and performs information interaction with the second node device, and the method comprises:
when the target awakening interval arrives, the first node equipment awakens and receives a cache information notification frame sent by the second node equipment when the target awakening interval arrives, wherein the cache information notification frame comprises a unicast address of the first node equipment and an identifier indicating whether cache information exists or not;
and if the cache information notification frame comprises an identifier corresponding to the cache information, the first node equipment receives the cache information.
7. An information transmission apparatus, comprising:
a first sending module, configured to send a friend request frame to a second node device before a first node device enters a sleep state, where the friend request frame includes a minimum wake-up interval and a maximum wake-up interval after the first node device enters the sleep state;
a first receiving module, configured to receive a friend grant frame returned by the second node device;
an establishing module, configured to establish a friendship relationship between the first node device and the second node device, so that after the first node device enters the sleep state, the second node device caches information that a target reaches the first node device, where the friend grant frame includes a target wake-up interval, and the target wake-up interval is greater than or equal to the minimum wake-up interval and less than or equal to the maximum wake-up interval;
and the awakening module is used for awakening the first node equipment once at intervals of the target awakening interval after the first node equipment enters the sleep state so as to enable the first node equipment to perform information interaction with the second node equipment.
8. The apparatus of claim 7, further comprising:
and the second sending module is used for sending a sleep notification frame to the second node equipment when the first node equipment enters a sleep state, so that the second node equipment starts to cache information of a target reaching the first node equipment after receiving the sleep notification frame, and sends the cached information to the first node equipment at intervals of the target awakening interval.
9. A node apparatus, comprising:
a processor;
the Bluetooth component is used for establishing a Bluetooth network with other Bluetooth equipment;
a memory for storing executable instructions of the processor;
the processor, when executing the executable instructions, may implement the method of any of claims 1-6 above.
10. A computer-readable storage medium comprising instructions which, when executed on the computer, enable the computer to implement the method of any of claims 1-6.
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