JP2020108164A - Anchor master AM management method and node - Google Patents

Abstract

To solve the problem in which air interface resource is excessively consumed.SOLUTION: Provided are an anchor master AM management method and a node. The method includes a step of refraining from sending a synchronized beacon frame within the current DW by a device in a NAN if the device is used in a neighborhood awareness network, the device has a non-master role asynchronous state within a previous discovery window (DW), and the device has an anchor master role in the current DW.SELECTED DRAWING: Figure 1

Description

The present invention relates to the field of wireless communication technology, and more particularly, to an anchor master AM management method and node.

Currently, social and localization are the mainstream modes in the mobile Internet field. In particular, with the spread of mobile nodes equipped with a Wireless-Fidelity (Wi-Fi) interface, in the Wi-Fi technology, a beacon (Beacon) frame is periodically transmitted using a central node, and External nodes can be associated with the central node. However, there are limitations on network structure and data transmission in the 802.11 protocol. For example, if there is no central node, it is difficult to perform discovery service. Currently, Neighbor Awareness Networking (NAN) mechanism is generally used to solve this problem, so that a plurality of NAN nodes form a NAN cluster. Nodes in the same NAN cluster have the same cluster identifier, and each node has its own attributes including Role and State. There are two Roles, a master node (Master) and a non-master node (non-Master). There are two states, synchronous (sync) and asynchronous (non-sync). Nodes in Sync state are responsible for maintaining cluster synchronization. The Master may be in Sync state and the non-Master may be in Sync state or non-sync state. Each node further includes a Master Rank (MR), the Master with the highest MR in the NAN cluster becomes the Anchor Master (AM), and all other nodes are the time with the AM. Keep in sync, which guarantees sync across the NAN cluster. In NAN clusters, a typical application scenario is that multiple nodes perform service discovery of each other before association. In order to perform service discovery between nodes, the nodes in the NAN cluster must operate over the NAN social channel and remain awake for a specified period of time. For example, the 2.4 GHz channel's social channel is channel 6. In some scenarios, NAN needs to run in the background for a long time. Therefore, energy saving control needs to be performed on the nodes in the NAN, and the nodes are specified to wake up only when the Discovery Window (DW) arrives, which enables service discovery and cluster synchronization on the social channel. To execute.

In the prior art, nodes have to be frequently synchronized in order to ensure that the two system clocks do not have a large deviation, i.e. each Master and each Sync non-Master has a sync beacon (Sync) in the DW. Beacon) Send the frame. According to existing rules, when a node in a cluster receives an AM Sync Beacon frame, the Anchor Master Rank (AMR) in the Sync Beacon frame is recorded by most of the nodes in the cluster. Above the recorded AMR and its own MR, and if the Medium Access Control (MAC) address information in the Sync Beacon frame is the same as the AM MAC address information recorded by the node, then Most of the nodes can change their role to AM in a short time. As a result, a large number of Sync Beacons need to be sent in a short time, which consumes excessive air interface resources.

The present invention provides an anchor master AM management method and node, which can reduce the amount of beacons sent by AM in a NAN network in a short time, and waste air interface resources. Is effectively reduced.

A first aspect of an embodiment of the present invention provides an anchor master AM management method, which is used in a neighbor aware network,
Receiving a first sync beacon frame transmitted by a second node in the neighbor aware network by the first node, the first sync beacon frame carrying the first anchor master information. , The first anchor master information includes a first anchor master rank AMR, the first AMR includes first MAC address information, the anchor master information of the first node is a second AMR And the second AMR includes second MAC address information,
When the first AMR is lower than the second AMR, the first MAC address information is the same as the second MAC address information, and the master rank MR of the first node is higher than the first AMR, Updating the anchor master information of the first node according to the first anchor master information by the first node,
A step of transmitting a second synchronization beacon frame by the first node when the preset node status of the first node is in the synchronous state, or the preset node status of the first node is in the asynchronous state Skipping transmitting a sync beacon frame by the first node if
including.

With reference to the first aspect, in the first implementation of the first aspect of the present invention, when the preset node status of the first node is in the synchronous state, the second node by the first node Prior to the step of transmitting the sync beacon frame, the method
Determining by the first node whether the node status prior to the preset node status of the first node is in sync,
Transmitting a second synchronization beacon frame by the first node when the node status preceding the preset node status of the first node is in sync state, or the preset node status of the first node Skip sending a second sync beacon frame in the current window by the first node and a second sync beacon in the next discovery window if the previous node status of the node status is asynchronous Transmitting a frame,
Further includes.

With reference to the first aspect or the first implementation of the first aspect, in the second implementation of the first aspect of the present invention, the preset node status of the first node is the first synchronization. It includes the state of the first node before the beacon frame was received, the state of the first node when the current discovery window started, or the state of the first node within the previous discovery window.

With reference to the first aspect or the second implementation of the first aspect, in the third implementation of the first aspect of the present invention, the step of transmitting a second synchronization beacon frame by the first node,
Sending a second synchronization beacon frame by the first node in the current window or the next discovery window.

With reference to the first aspect or any one of the first to third implementations of the first aspect, in a fourth implementation of the first aspect of the present invention, a first node, a first After the step of updating the anchor master information of the first node according to the anchor master information, the method
Receiving a third synchronization beacon frame transmitted by a third node in the neighbor aware network by the first node, the third synchronization beacon frame carrying third anchor master information. , The third anchor master information comprises a third AMR, the updated anchor master information of the first node comprises a fourth AMR, and,
If the third AMR is lower than the fourth AMR, skip updating the anchor master information of the first node by the first node, and if the first node is in sync, then the first Node sends a sync beacon frame within the next discovery window, or if the third AMR is higher than the fourth AMR, the first node according to the third anchor master information of the first node Updating the updated anchor master information,
Further includes.

A second aspect of the present invention provides an anchor master AM management method, which is used in a neighbor aware network,
Receiving the first sync beacon frame transmitted by the second node in the neighbor aware network within the second half of the current discovery window by the first node, the first sync beacon frame comprising: , Carrying the first anchor master information, the first anchor master information comprises a first AMR, the anchor master information of the first node comprises a second AMR, a step,
If the first AMR is lower than the second AMR, skipping updating the preset node status of the first node and the anchor master information of the first node by the first node,
including.

With reference to the second aspect, in a first implementation of the second aspect of the invention, the method comprises:
By the first node, determining whether the preset node status of the first node is in sync,
Sending a second synchronization beacon frame within the next discovery window by the first node when the preset node status of the first node is in sync state, or preset by the first node Skipping transmitting a synchronous beacon frame by the first node when the node status is asynchronous.
Further includes.

In a second implementation of the second aspect of the invention with reference to the second aspect, the method comprises:
Determining by the first node whether the current node status of the first node is in sync;
If the preset node status of the first node is in sync state, further determining by the first node whether the previous node status of the first node is in sync state,
Sending a second sync beacon frame by the first node when the previous node status of the first node is in sync state, or when the previous node status of the first node is in sync state , Skipping sending a synchronous beacon frame by the first node, or skipping sending a synchronous beacon frame by the first node if the current node status of the first node is asynchronous Steps to
Further includes.

A third aspect of the present invention provides an anchor master AM management method, which is used in a neighbor aware network,
Determining by the first node whether the node status before the first node is in an asynchronous state;
Sends a frame by the first node within the current discovery window when the previous node status of the first node is asynchronous and the current node status of the first node is synchronous or asynchronous Skipping that step,
including.

With reference to the third aspect, in a first implementation of the third aspect of the present invention, the method is such that the current node status of the first node is in sync and the latter period of the current discovery window. If the node status of the first node in the is in sync state, the first node skips sending the sync beacon frame in the current discovery window and sends the sync beacon frame in the next discovery window. The method further includes the step of transmitting.

A fourth aspect of the present invention provides an anchor master AM management method, which is used in a neighbor aware network,
Obtaining, by the first node, the anchor master rank MR of another node in the neighborhood aware network,
Receiving a first sync beacon frame transmitted by a second node in the neighbor aware network by the first node, the first sync beacon frame carrying the first anchor master information. , The first anchor master information comprises a first anchor master rank AMR, the first AMR comprises first medium access control MAC address information, the second anchor master information of the first node Including the second MAC address information,
If the first AMR is lower than the preset percentage MR acquired by the first node and the first MAC address information is the same as the second MAC address information, then by the first node Skipping updating the second anchor master information,
including.

A fifth aspect of the invention provides a node, which is used in a neighbor aware network,
A transmitting module configured to receive a first sync beacon frame transmitted by a second node in the neighbor aware network, the first sync beacon frame carrying the first anchor master information. , The first anchor master information includes a first anchor master rank AMR, the first AMR includes a first medium access control MAC address information, the anchor master information of the first node, A second AMR, the second AMR including a second MAC address information;
When the first AMR is lower than the second AMR, the first MAC address information is the same as the second MAC address information, and the master rank MR of the first node is higher than the first AMR, A processing module configured to update the anchor master information of the first node according to the first anchor master information,
Including
The sending module is further configured to send a second sync beacon frame if the processing module determines that the preset node status of the first node is in sync, or the sending module is Further configured to skip sending a synchronous beacon frame if the processing module determines that the preset node status of the first node is asynchronous.

With reference to the fifth aspect, in a first implementation of the fifth aspect of the invention, the processing module comprises:
Further configured to determine whether the node status before the preset node status of the first node is in sync,
The transmitting module transmits the second synchronization beacon frame when the processing module determines that the node status before the preset node status of the first node is in the synchronization state, or transmits the second synchronization beacon frame. If the processing module determines that the previous node status of the preset node status of is an asynchronous state, it skips sending a second sync beacon frame within the current discovery window and skips to the next discovery window. Further configured to transmit a second synchronization beacon frame within.

With reference to the fifth aspect or the first implementation of the fifth aspect, in the second implementation of the fifth aspect of the present invention, the preset node status of the first node is the first synchronization. Contains the state of the first node before the beacon frame was received by the transmitting module, the state of the first node when the current discovery window started, or the state of the first node within the previous discovery window ..

With reference to the fifth aspect or the second implementation of the fifth aspect, in the third implementation of the fifth aspect of the invention, the transmitter module is specifically
Configured to send a second sync beacon frame within the current discovery window or the next discovery window.

In a fourth implementation of the fifth aspect of the invention, with reference to any one of the fifth aspect or the first to third implementations of the fifth aspect, the transmitter module comprises
Further configured to receive a third sync beacon frame transmitted by a third node in the neighbor aware network, the third sync beacon frame carrying third anchor master information and a third anchor. The master information includes a third AMR, the updated anchor master information of the first node includes a fourth AMR,
The processing module skips updating the anchor master information of the first node if the third AMR is lower than the fourth AMR, and if the first node is in sync, the next discovery Further configured to send a sync beacon frame within the window, or the processing module updates the first node according to the third anchor master information if the third AMR is higher than the fourth AMR. It is further configured to update the anchored master information that has been deleted.

A sixth aspect of the invention provides a node, which is used in a neighbor aware network,
A transmitting module configured to receive a first sync beacon frame transmitted by a second node in the neighbor aware network within a second half of the current discovery window, the first sync beacon frame , Carries the first anchor master information, the first anchor master information comprises a first anchor master rank AMR, the anchor master information of the first node comprises a second AMR, the transmission Module,
A processing module configured to skip updating the current node status of the first node and the anchor master information of the first node if the first AMR is lower than the second AMR;
including.

With reference to the sixth aspect, in a first implementation of the sixth aspect of the invention, the processing module comprises:
Further configured to determine if the current node status of the first node is in sync,
The sending module sends a second sync beacon frame within the next discovery window if the processing module determines that the current node status of the first node is in sync state, or It is further configured to skip sending a synchronous beacon frame if the processing module determines that the current node status is asynchronous.

In a second implementation of the sixth aspect of the invention with reference to the sixth aspect, the processing module comprises:
Determine if the current node status of the first node is in sync,
Further configured to further determine if the previous node status of the first node is in sync if the current node status of the first node is in sync,
The sending module sends a second sync beacon frame within the next discovery window if the processing module determines that the previous node status of the first node is in sync state, or If the processing module determines that the previous node status is asynchronous, it skips sending a synchronous beacon frame or the processing module determines that the current node status of the first node is asynchronous And further configured to skip transmitting a sync beacon frame.

A seventh aspect of the present invention provides a node, which node is used in a neighbor aware network,
A processing module configured to determine whether the previous node status of the first node is asynchronous.
A sync beacon frame in the current discovery window if the processing module determines that the previous node status of the first node is asynchronous and the current node status of the first node is synchronous or asynchronous. A sending module configured to skip sending
including.

With reference to the seventh aspect, in a first implementation of the seventh aspect of the invention, the transmitter module comprises:
If the processing node determines that the current node status of the first node is the synchronous state or the asynchronous state, and the node status of the first node is the synchronous state within the second half of the current discovery window, It is further configured to skip sending a sync beacon frame in the current discovery window and send a sync beacon frame in the next discovery window.

An eighth aspect of the invention provides a node, the node being used in a neighbor aware network,
Get the master rank MR of another node in the neighborhood aware network,
A transmitting module configured to receive a first synchronization beacon frame transmitted by a second node in the neighbor aware network, the first synchronization beacon frame carrying the first anchor master information. , The first anchor master information comprises a first anchor master rank AMR, the first AMR comprises first medium access control MAC address information, the second anchor master information of the first node Includes a transmitting module including second MAC address information,
If the first AMR obtained by the transmitting module is lower than the preset percentage MR obtained by the transmitting module and the first MAC address information is the same as the second MAC address information, then the second A processing module configured to skip updating the anchor master information of the
including.

A ninth aspect of the invention provides a node, which is used in a neighbor aware network,
A processor,
A memory configured to store computer-executable program code,
Communication interface,
Including receiver and transmitter,
The processor, the receiver, the transmitter, the storage device, and the communication interface communicate with each other using a bus,
The processor reads the program code and data stored in the storage device, the program code includes an instruction, and when the processor executes the instruction, the instruction causes the processor to perform the following operation:
An operation of receiving with a receiver a first sync beacon frame transmitted by a second node in a neighbor aware network, the first sync beacon frame carrying a first anchor master information. , The first anchor master information includes a first anchor master rank AMR, the first AMR includes a first medium access control MAC address information, the anchor master information of the first node, An operation including two AMRs, the second AMR including second MAC address information, and
When the first AMR is lower than the second AMR, the first MAC address information is the same as the second MAC address information, and the master rank MR of the first node is higher than the first AMR, An operation of updating the anchor master information of the first node according to the first anchor master information,
When the preset node status of the first node is in the synchronous state, the operation of transmitting the second synchronization beacon frame using the transmitter, or the preset node status of the first node is in the asynchronous state And the operation of skipping the transmission of the synchronous beacon frame,
To be able to perform.

With reference to the ninth aspect, in the first implementation of the ninth aspect of the present invention, when the preset node status of the first node is in the synchronous state, the second using the transmitter Prior to the act of sending a sync beacon frame, the processor performs the following actions:
An operation of determining whether the node status before the preset node status of the first node is in the synchronization state,
An operation of transmitting a second synchronization beacon frame using a transmitter when the node status before the preset node status of the first node is in the sync state, or the preset node status of the first node Skipping sending a second sync beacon frame in the current discovery window with the transmitter if the node status before the node status is asynchronous and a second sync in the next discovery window The operation of transmitting a beacon frame,
To execute further.

With reference to the ninth aspect or the first implementation of the ninth aspect, in the second implementation of the ninth aspect of the present invention, the preset node status of the first node is the first synchronization. Contains the state of the first node before the beacon frame was received by the receiver, the state of the first node when the current discovery window started, or the state of the first node within the previous discovery window ..

With reference to the ninth aspect or the second implementation of the ninth aspect, in the third implementation of the ninth aspect of the present invention, the operation of transmitting a second synchronization beacon frame by a processor using a transmitter. Is
Includes the act of transmitting a second sync beacon frame within a current discovery window or a next discovery window using a transmitter.

With reference to any one of the ninth aspect or the first to third implementations of the ninth aspect, in a fourth implementation of the ninth aspect of the present invention, a first implementation according to the first anchor master information After the operation of updating the anchor master information of the node of
An operation of receiving, with a receiver, a third sync beacon frame transmitted by a third node in a neighbor aware network, the third sync beacon frame carrying third anchor master information. , The third anchor master information includes a third AMR, the updated anchor master information of the first node includes a fourth AMR, the operation,
If the third AMR is lower than the fourth AMR, skip updating the anchor master information of the first node, and if the first node is in sync, then use the transmitter to The act of sending a sync beacon frame within the discovery window, or the act of updating the updated anchor master information of the first node according to the third anchor master information when the third AMR is higher than the fourth AMR. When,
To execute further.

A tenth aspect of the present invention provides a node, which node is used in a neighbor aware network,
A processor,
A memory configured to store computer-executable program code,
Communication interface,
Including receiver and transmitter,
The processor, the receiver, the transmitter, the storage device, and the communication interface communicate with each other using a bus,
The processor reads the program code and data stored in the storage device, the program code includes an instruction, and when the processor executes the instruction, the instruction causes the processor to perform the following operation:
The operation of receiving, within a neighbor aware network, a first sync beacon frame sent by a second node within a second half of the current discovery window, the first sync beacon frame being An anchor carrying master information, the first anchor master information comprises a first AMR, the anchor master information of the first node comprises a second AMR, the operation,
It is possible to perform an operation that skips updating the current node status of the first node and the anchor master information of the first node when the first AMR is lower than the second AMR. ..

With reference to the tenth aspect, in a first implementation of the tenth aspect of the invention, the processor performs the following operations:
An operation of determining whether or not the current node status of the first node is in a synchronous state,
If the current node status of the first node is in sync state, the act of sending a second sync beacon frame within the next discovery window with the transmitter, or the current node status of the first node is The operation to skip sending a synchronous beacon frame when it is in an asynchronous state,
To execute further.

With reference to the tenth aspect, in a second implementation of the tenth aspect of the invention, the processor operates as follows:
An operation of determining whether or not the current node status of the first node is in a synchronous state,
If the current node status of the first node is in sync state, the operation of further determining whether the previous node status of the first node is in sync state,
If the previous node status of the first node is in sync state, the act of sending a second sync beacon frame within the next discovery window with the transmitter, or the previous node status of the first node is An operation of skipping transmitting a synchronous beacon frame when in an asynchronous state, or an operation of skipping transmitting a synchronous beacon frame when the current node status of the first node is in an asynchronous state,
To execute further.

An eleventh aspect of the invention provides a node, the node being used in a neighbor aware network,
A processor,
A memory configured to store computer-executable program code,
Communication interface,
Including receiver and transmitter,
The processor, the receiver, the transmitter, the storage device, and the communication interface communicate with each other using a bus,
The processor reads the program code and data stored in the storage device, the program code includes an instruction, and when the processor executes the instruction, the instruction causes the processor to perform the following operation:
The operation to determine whether the previous node status of the first node is asynchronous,
Skip sending sync beacon frame within current discovery window when the previous node status of the first node is asynchronous and the current node status of the first node is synchronous or asynchronous To do
To be able to perform
Provide a node.

With reference to the tenth aspect, in a first implementation of the tenth aspect of the invention, the processor performs the following operations:
If the current node status of the first node is in sync and the node status of the first node is in sync within the latter half of the current discovery window, then the current discovery window with the transmitter is used. It skips sending a sync beacon frame within and performs the operation of sending a sync beacon frame within the next discovery window.

A twelfth aspect of the invention provides a node, the node being used in a neighbor aware network,
A processor,
A memory configured to store computer-executable program code,
Communication interface,
Including receiver and transmitter,
The processor, the receiver, the transmitter, the storage device, and the communication interface communicate with each other using a bus,
The processor reads the program code and data stored in the storage device, the program code includes an instruction, and when the processor executes the instruction, the instruction causes the processor to perform the following operation:
The act of obtaining the master rank MR of another node in the neighbor aware network,
An operation of receiving a first sync beacon frame transmitted by a second node in a neighbor aware network, the first sync beacon frame carrying first anchor master information, the first anchor master The information includes a first anchor master rank AMR, the first AMR includes first medium access control MAC address information, and the second anchor master information of the first node is a second MAC. Operation, including address information,
If the first AMR is lower than the preset percentage MR obtained by the first node and the first MAC address information is the same as the second MAC address information, then the second anchor master. The act of skipping updating information,
To be able to perform.

In the embodiment of the present invention, the first node updates the anchor master information of the first node according to the first anchor master information, the anchor master information of the first node, and the MR of the first node. And sending a second sync beacon frame if the first node is in sync, which causes another node to become synchronized with the first node. This prevents the node becoming an AM from transmitting a sync beacon frame to some extent, effectively reducing the waste of air interface resources.

6 is a flowchart of an anchor master AM management method according to an embodiment of the present invention. 5 is a flowchart of another anchor master AM management method according to an embodiment of the present invention. 5 is a flowchart of another anchor master AM management method according to an embodiment of the present invention. 5 is a flowchart of another anchor master AM management method according to an embodiment of the present invention. FIG. 3 is a schematic configuration diagram of a node according to an embodiment of the present invention. FIG. 9 is another schematic configuration diagram of another node according to an embodiment of the present invention. FIG. 9 is another schematic configuration diagram of another node according to an embodiment of the present invention. FIG. 9 is another schematic configuration diagram of another node according to an embodiment of the present invention. FIG. 3 is a schematic configuration diagram of a node according to an embodiment of the present invention. FIG. 9 is another schematic configuration diagram of another node according to an embodiment of the present invention. FIG. 9 is another schematic configuration diagram of another node according to an embodiment of the present invention. FIG. 9 is another schematic configuration diagram of another node according to an embodiment of the present invention.

The following clearly and fully describes the technical solutions of the embodiments of the present invention with reference to the accompanying drawings of the embodiments of the present invention. Apparently, the described embodiments are merely some but not all of the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

In the specification, claims and accompanying drawings of the present invention, terms such as "first" and "second" are intended to distinguish between similar subjects, but not necessarily in any particular order or No order is shown. It is understood that data thus referred to can be exchanged in appropriate contexts, such that the embodiments described herein can be implemented in other orders than illustrated and described herein. It should be. In addition, the terms "include", "have", or any other variation thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that comprises a series of steps or modules is not necessarily limited to those steps or modules that are explicitly listed, or is not explicitly listed. , Or may include other steps or modules specific to the device. The division of modules herein is merely a logical division, and there may be other divisions during implementation in actual applications. For example, multiple modules may be combined or integrated into another system, or some features may be ignored or not implemented. In addition, the displayed or discussed interconnections or direct couplings or communication connections may be implemented through some interfaces. The indirect coupling or communication connection between the modules may be implemented electronically or otherwise and is not limited herein. In addition, the modules or sub-modules described above as single components may or may not be physically separate, or may or may not be physical modules, or It may be distributed over a plurality of circuit modules. Some or all of the modules may be selected according to actual requirements to achieve the goals of the solution of the embodiments of the present invention.

Embodiments of the present invention provide an anchor master AM management method and node used in a neighbor aware network. The neighbor aware network includes at least one cluster, each cluster includes at least one node, and the nodes are devices in the cluster. These nodes form a distributed network. A node may be a network element, or any device with an equivalent status, which is not specifically limited here. Details are described below.

In this specification, node attributes include node role and node status. There are two roles, master node (Master) and non-master node (Non-Master). There are two node statuses: synchronous (Sync) and asynchronous (Non-Sync). The master is classified into an anchor master (AM) and a non-anchor master. The master's node status can be synchronous and the non-master's node status can be synchronous or asynchronous. A node in the Non-Master Sync state and a node in the Non-Master Non-Sync state are in the Non-Master role. Each node may have any one of the following attributes: master role, non-master sync state, or non-master non-sync state. For example, if the node is in the Master role, this indicates that the node is in sync, if the node is in Non-Master Sync state, this is that the node is in sync, or If the node is in the Non-Master Non-Sync state, this indicates that the node is in the asynchronous state.

In addition, Sync Beacon frames received by the node can be classified into near Beacon frames and distant Beacon frames. A nearby Beacon frame is a Beacon frame having a Received Signal Strength Indicator (RSSI) greater than the first threshold, eg, RSSI=−60 dBm, and a far Beacon frame is greater than the second threshold. Is a Beacon frame with an RSSI greater than and less than the first threshold, eg, RSSI=−75 dBm.

In this embodiment of the invention, each node has its own MR and node status can be defined to prevent more nodes from becoming AM, The anchor master information is anchor master information of the AM node recorded or stored in the AM node. In this embodiment of the present invention, four solutions are mainly provided to reduce the amount of Sync Beacon frames transmitted in a short time in the neighbor aware network as follows.

I. The node is prevented from sending Sync Beacon frames using the node's preset status.

1. Other nodes than AM nodes are non-AM nodes. After updating the anchor master information of the non-AM node according to the received Sync Beacon frame sent by another node, the non-AM node determines whether the preset node status of the non-AM node is in sync state. Need to judge. If so, the Sync Beacon frame is sent, or else the Sync Beacon frame is not sent. In this way, even if a non-AM node becomes an AM node (switches to or stays in sync), the Sync Beacon frame is not sent after the current node status is switched to sync, The Sync Beacon frame is transmitted only after the judgment condition is satisfied. That is, not all AM nodes send Sync Beacon frames. This limits the amount of Sync Beacon frames transmitted by AM nodes to some extent and reduces the waste of air interface resources.

2. If a non-AM node receives a Sync Beacon frame within the second half of the DW, the node status and anchor master information for that node will not be updated even if the AMR in the Sync Beacon frame is lower than that node's AMR. That is, non-AM nodes are prevented from becoming AM nodes, and as a result, Sync Beacon frames are not transmitted. Using this mechanism, it is possible to effectively reduce the amount of non-AM nodes that can be AM nodes in some special period, which reduces the amount of Sync Beacon frames transmitted. , Waste of air interface resources is reduced.

3. If the node's current node status is in sync, a reference to the node's previous node status needs to be made. That is, if the previous node status is synchronous, the node sends a Sync Beacon frame, or if the previous node status is asynchronous, the node does not send a Sync Beacon frame, which results in a Sync Beacon frame. Is further limited, and the amount of Sync Beacon frames transmitted is reduced.

II. Whether to transmit the Sync Beacon frame is determined according to the detection result of MR of another node detected by the node in a certain period.

Each node in the NAN network acquires and records the MR of another node in advance. If the AMR in the Sync Beacon frame received by the node is lower than the preset percentage MR obtained and the MAC address information in the Sync Beacon frame is the same as the node's MAC address information, this is , Indicates that the AMR of the node corresponding to the Sync Beacon frame in the neighbor-aware network is lower than most of the nodes, and that the Sync Beacon frame may have been sent by a bogus AM node, which leads to the anchor of the node. The master information is not updated and Sync Beacon frames are not sent. Therefore, the amount of AM nodes and the amount of Sync Beacon frames is reduced, and air interface resources are saved.

Referring to FIG. 1, in one embodiment of the present invention, a modification of a first node in a non-AM role is used as an example to describe the anchor master AM management method in this embodiment of the present invention. The method includes the following steps.

101. The first node receives the first sync beacon frame transmitted by the second node in the neighbor aware network.

The first Sync Beacon frame carries first anchor master information, the first anchor master information including a first anchor master rank AMR, the first AMR being the first Of the medium access control MAC address information, the anchor master information of the first node includes a second AMR, and the second AMR includes second MAC address information.

In a practical application, the message that can carry the first anchor master information could be a Sync Beacon frame, a Service Discovery Frame, or another message in the NAN, or, of course, a new message. It can be an extended or newly defined message. The specific transportation method is not limited in this specification.

In addition, the Sync Beacon frame is at least one of AMR information, HC information, Anchor Master Beacon Transmission Time (AMBTT) information, and Time Synchronization Function (TSF) information. May be included. The AM information, AMR information, or MAC address information may be the corresponding information values, or may be another form of representation, or a derivative of these information values or these combined with other information. It may be a derivative value of the information value of. This is not specifically limited in this specification.

For example, the MAC address information may be the lower 6 bytes of the first AMR information, i.e., the first AMR includes the first MAC address information, the first AMR information by the AMR It may be specifically expressed, and the same applies to others.

102. The first node has a first AMR lower than the second AMR, the first MAC address information is the same as the second MAC address information, and the master rank MR of the first node is the first AMR. If it is higher, the anchor master information of the first node is updated according to the first anchor master information.

It should be noted that the anchor master information of the first node is the anchor master information stored or recorded in the first node. The first anchor master information further includes a first HC and a first AMBTT, and the anchor master information of the first node further includes a second HC, a second AMBTT, and first TSF information. ..

The first node updates the anchor master information of the first node if the following conditions are satisfied: AMR1<AMR2, MAC1=MAC2, and AMR1<MR _{first node} , ie,
Set the second AMR to the MR of the first node,
Set the second HC to 0,
Set the second AMBTT to 0.

In addition, when the MAC address information is compared, specifically, the lower 6 bytes of the first AMR are compared with the lower 6 bytes of the second AMR. There is no order between AMR comparison, MAC address information comparison, and MR and AMR comparison.

103. The first node determines whether the preset node status of the first node is in sync state.

It should be noted that the preset node status is a predefined usage state or a usage state defined in the standard. The preset node status may be a node status defined on the network side according to preset rules, or may be a state set by the node itself. This is not specifically limited. The preset node status is the state of the first node before the first Sync Beacon frame is received, the state of the first node when the current discovery window DW starts, the first in the previous DW. Node states, etc. (but not limited to node status at these three time points if the purpose of limiting the amount of Sync Beacon frames or delaying the transmission of Sync Beacon frames can be achieved). The preset node status specifically includes a synchronous state and an asynchronous state. If the node is in Master role, the node is in sync state, if the node is in Non-Master-Sync, the node is in sync state, or if the node is in Non-Master-Non-Sync, the node is out of sync Is in a state.

That is, even if the current node status of the first node is switched to the sync state, whether the preset node status is the sync state, i.e., the node is in the Master role or is in the Non-Master Sync state. Is still required to be determined.

The preset node status may be stored on the first node and used to compare the node status.

104-1. The first node transmits a second synchronization beacon frame if the preset node status of the first node is in synchronization, or
104-2. The first node does not transmit a synchronous beacon frame when the preset node status of the first node is asynchronous.

It should be noted that if the first node sends a Sync Beacon, the Sync Beacon carries the updated anchor master information of the first node.

That is, even if the current node status of the first node is different from the preset node status, according to the preset rule, the first node, the preset node status of the first node is in a synchronized state. If so, it sends a Sync Beacon frame. The fact that the first node sends a Sync Beacon frame indicates here that the first node can send a Sync Beacon frame, and the time when the Sync Beacon frame is sent can be any time, for example, the current discovery window. Or it may be the next discovery window.

Instead, if the preset node status of the first node is asynchronous, the first node sends a Sync Beacon frame even if the current node status of the first node is synchronous. do not do.

For example, if the preset node status of the first node is the state of the first node before the first Sync Beacon frame is received, the first before the Sync Beacon frame is received. When the state of the first node is the Master state, the first node transmits the second Sync Beacon frame.

In another example, if the preset node status of the first node is the state of the first node before the first Sync Beacon frame is received, then the first Sync Beacon frame is received. If the state of the first node before the start is the Non-Master Non-Sync state, this node does not transmit the second Sync Beacon frame.

In this embodiment of the invention, the first node updates the anchor master information of the first node according to the first anchor master information, the anchor master information of the first node, and the MR of the first node. And sends a second Sync Beacon frame only if the preset node status of the first node is in sync state, which causes another node to synchronize with the first node. It This prevents the node that becomes an AM from transmitting Sync Beacon frames to some extent, effectively reducing the amount of Sync Beacon frames, occupancy, and waste of air interface resources.

Further, in this embodiment of the present invention, for example, the synchronization state of the node may be set, and the preset node statuses are classified into the first synchronization state Sync1 and the second synchronization state Sync2. If the first node is in Sync1 (Master state), the first node may randomly select a backoff number of [0,15]. When the first node is in Sync2 (Non-Master Sync state), the first node may randomly select a backoff number of [0,31]. The backoff number represents a counter. Therefore, the time to send Sync Beacon frames by different nodes may be staggered, effectively reducing network congestion, delaying the transmission time, and stacking a large number of Sync Beacon frames in a short time. The details are not described again in this specification for the similarities.

It can be seen that in this embodiment of the invention, the time to send the Sync Beacon frame may be further limited (this may be understood as a delayed transmission). For example, Sync Beacon frames may be sent within the current discovery window or next discovery window, or within a later discovery window. This is not specifically limited. The time of transmission is selected flexibly and appropriately, which reduces contention at the time of transmitting the Sync Beacon frame to some extent and the nodes can be timely synchronized.

Optionally, in this embodiment of the invention, the method is performed before the first node sends a second sync beacon frame when the preset node status of the first node is sync state. Further includes:

105. The first node determines whether the node status before the preset node status of the first node is a synchronization state.

If the node status before the preset node status of the first node is in sync state, the first node sends a second Sync Beacon frame, or the preset node status of the first node If the node status before the status is Asynchronous, the first node does not send a second Sync Beacon frame in the current DW, but sends a second Sync Beacon frame in the next DW.

For example, if the preset node status of the first node is the state of the first node before the first Sync Beacon frame is received, the first before the Sync Beacon frame is received. If the state of the first node is the Master state, that is, the synchronization state, and if the previous node status is the Master state or the Non-Master Sync state, that is, the synchronization state, the node is in the second Sync state. Send a Beacon frame. However, if the previous node status is Non-Master Non-Sync, i.e. asynchronous, the node will not send a second Sync Beacon frame in the current discovery window, but in the next discovery window. Send 2 Sync Beacon frames.

In this optional solution, each node records changes in its own node status. The node statuses of two consecutive times of the first node (of course, there may be more than two node statuses and more selection times have a better effect) are determined according to the new definition. The first node that becomes AM is prevented from transmitting Sync Beacon frames, and the amount of Sync Beacon frames transmitted within the neighbor aware network can be effectively reduced within a certain period of time. This reduces the waste of air interface resources and effectively improves the utilization of network resources, which provides SDF with more opportunities to use air interface resources and services between nodes. Discovery can be performed in a timely manner, effectively improving network resource utilization.

Optionally, in this embodiment of the invention, after the first node updates the anchor master information of the first node according to the first anchor master information, the method further comprises:

106. The first node receives a third sync beacon frame transmitted by a third node in the neighbor aware network, where the third sync beacon frame carries third anchor master information, and The third anchor master information includes the third AMR, and the updated anchor master information of the first node includes the fourth AMR. This method
If the third AMR is lower than the fourth AMR, skip updating the anchor master information of the first node by the first node, and if the first node is in sync, the first Sending a synchronous beacon frame in the next DW by the node, or if the third AMR is higher than the fourth AMR, the first node updates the first node according to the third anchor master information. It further includes updating the anchor master information. Specifically, the first node may update the updated anchor master information of the first node according to the second synchronization beacon frame, i.e.,
Set the 4th AMR to the 3rd AMR,
Set the third HC to 1 (ie add 1 to the value of the second HC),
Set the third AMBTT to the fourth AMBTT.

In this alternative solution, after the first node updates the anchor master information recorded by the first node, the synchronization states of the nodes are the first synchronization state Sync1 and the second synchronization state Sync2. It may be further classified. The first node randomly selects a backoff number, and when the backoff number is reached, the first node sends a second Sync Beacon frame. Therefore, while counting the backoff number, the first node updates the anchor master information recorded by the first node, and before sending the second Sync Beacon frame, the third Sync Beacon The frame may be received, or the third Sync Beacon frame may be received after transmitting the second Sync Beacon frame. The order of the specific time points is not limited in this specification.

In addition, the first node does not change the current node status of the first node or the anchor master information of the first node even if the third AMR is lower than the fourth AMR, and another node Does not send a Sync Beacon frame in the current window to allow the sync to synchronize with the first node. This reduces the amount of Sync Beacon frames to some extent and reduces the waste of air interface resources. Additionally, if the third AMR is equal to the fourth AMR, the first node may ignore the received third Sync Beacon frame without performing any processing.

Referring to FIG. 2, the following describes another anchor master AM management method according to an embodiment of the present invention from the viewpoint of limiting modification of the first node according to the time when a Sync Beacon frame is received. The method includes the following steps.

201. The first node receives the first sync beacon Sync Beacon frame sent by the second node in the neighbor aware network within the latter half of the current discovery window DW.

The first Sync Beacon frame carries first anchor master information, the first anchor master information includes a first AMR, and the anchor master information of the first node includes a second AMR.

It can be appreciated that the latter half period may be any period within the latter half period, indicating that the DW will expire, but is not limited to this one-half critical point. In certain areas, DW expiration is set according to the actual design of network rules. For example, the last 2/5 period may be set to indicate that the DW will expire. Dividing the time period to indicate that the DW has expired is not limited in this specification.

202. The first node does not update the current node status of the first node or the anchor master information of the first node if the first AMR is lower than the second AMR.

In this embodiment of the invention, if the first node receives the first Sync Beacon frame within the second half of the DW, the first node may be lower than the second AMR even if the first AMR is lower than the second AMR. Is defined as not changing the current node status of the first node and the anchor master information of the first node. In this way, the device is prevented from becoming AM when the discovery window ends, a Sync Beacon frame is sent past the window, and a node that can become AM within some special time period is Is effectively blocked. Therefore, the amount of AM in a short time can be reduced, the amount of Sync Beacon frames transmitted can be effectively reduced, and the waste of air interface resources is reduced. It

It should be noted that based on steps 201 and 202, this embodiment may further include steps 203-205.

203. Determine if the current node status of the first node is in sync.

204. The first node sends a second sync beacon frame in the next DW if the current node status of the first node is synced, where the second sync beacon frame is It carries the anchor master information of the node.

205. The first node does not send a sync beacon frame if the current node status of the first node is asynchronous.

Further, based on steps 201 and 202, this embodiment may further include steps 206-210, thereby replacing steps 203-205.

206. The first node determines whether the current node status of the first node is in sync.

207. The first node further determines whether the previous node status of the first node is in sync if the current node status of the first node is in sync.

208. The first node sends a second Sync Beacon frame if the previous node status of the first node is in sync state, where the second Sync Beacon frame is the anchor master information of the first node. To transport.

209. The first node does not send a Sync Beacon frame if the previous node status of the first node is asynchronous, and optionally the first node sends a Sync Beacon frame in the current DW. Do not send, but send the second Sync Beacon frame in the next DW.

210. The first node does not send a Sync Beacon frame if the current node status of the first node is asynchronous.

In this embodiment, the second Sync Beacon frame is not transmitted within the second half of the DW, even if the first node is in synchronization within the second half of the DW, but is transmitted within the next DW. Is defined as being done. Therefore, the time to send the Sync Beacon frame is effectively delayed, and the node whose state changes to the sync state in the second half of the DW is prevented from sending the Sync Beacon frame, which is unnecessary for a short time. Synchronization is reduced.

Referring to FIG. 3, the following describes another anchor master AM management method in an embodiment of the present invention from the viewpoint of limiting the amount of Sync Beacon frames according to the node status. Each node records changes in its own node status. The method includes the following steps.

301. Determine if the previous node status of the first node is asynchronous.

302. The first node does not send a Sync Beacon frame in the current discovery window DW if the previous node status of the first node is asynchronous and the current node status of the first node is synchronous ..

Optionally, the method further comprises the following steps.

303. If the current node status of the first node is in sync state and the node status of the first node is in sync within the second half of the current DW, the first node syncs in the current DW. Send the Beacon frame in the next DW without sending the Beacon frame.

In this embodiment, the two consecutive node statuses of the first node (of course, there may be more than two node statuses and more selection points have a better effect) are determined according to the new definition. This prevents the first node, which becomes AM, from transmitting the Sync Beacon frame described above, and the amount of Sync Beacon frames transmitted in the Neighbor Aware Network is effectively within a certain period of time. Can be reduced. This reduces the waste of air interface resources, which provides SDF with more opportunities to use air interface resources and allows service discovery between nodes to be performed in a timely manner. Yes, the utilization of network resources is effectively improved.

In addition, the first node sends a second Sync Beacon frame if the previous node status of the first node is sync state.

For example, if the current node status of the first node is Master or AM state and the previous node status is Master state or Non-Master Sync state, the node sends a second Sync Beacon frame. ..

In another example, the node state of the first node when the current DW started is considered. The state of the first node is Master state or Non-Master Sync state when the current DW is started, the current node status of the first node is Master state or AM, the previous node status is Master state Alternatively, if in the Non-Master Sync state, the first node sends a second Sync Beacon frame.

Referring to FIG. 4, the following describes another anchor master AM management method in an embodiment of the present invention. The method includes the following steps.

401. The first node obtains the master rank MR of another node in the neighborhood aware network.

The first node may obtain the MR corresponding to the node in sync from the sync beacon Sync Beacon frame transmitted by the node in sync in the neighbor aware network and record the MR.

402. The first node receives the first sync beacon Sync Beacon frame transmitted by the second node in the neighbor aware network.

The first Sync Beacon frame carries the first anchor master information, the first anchor master information including the first anchor master rank AMR, the first AMR being the first MAC address information. And the second anchor master information of the first node includes second MAC address information.

403. The first node, if the first AMR is lower than a preset percentage MR acquired by the first node and the first MAC address information is the same as the second MAC address information. , Do not update the second anchor master information.

The preset percentage may be any value in the range 70% to 100%.

For example, the first node records the MRs of N nodes in the neighbor aware network. After the first node receives the first Sync Beacon frame, if the first AMR is lower than the MR of 70% to 100% of the node, this means that of the node that sent the first Sync Beacon frame. The MR is lower than the MRs of most of the nodes in the neighbor aware network, indicating that the node sending the first Sync Beacon frame may be a fake or a node attacking the network. Therefore, the first node does not need to update the anchor master information or node status of the first node, and unnecessary state changes and synchronization may be reduced.

In this embodiment of the invention, the MR of another node in the neighborhood aware network is obtained in advance. After the Sync Beacon frame is received, the first anchor master information is compared with the second anchor master information. If the first AMR is lower than a preset percentage of the acquired MR and the first MAC address information is the same as the second MAC address information, this is the Sync Beacon frame in the neighbor aware network. Indicates that the AMR of the node corresponding to is lower than the MR of most of the nodes. The second anchor master information does not have to be updated according to the first anchor master information and Sync Beacon frames do not have to be sent, which reduces the amount of Sync Beacon frames and saves air interface resources To be done.

With reference to FIG. 5, the following describes a node in one embodiment of the present invention. Node 50 is used in a neighborhood aware network. Node 50
A transmitting module 501 configured to receive a first sync beacon frame transmitted by a second node in a neighbor aware network, the first sync beacon frame carrying first anchor master information. The first anchor master information includes the first anchor master rank AMR, the first AMR includes the first medium access control MAC address information, the anchor master information of the first node, A transmitting module 501 that includes a second AMR, the second AMR includes second MAC address information,
When the first AMR is lower than the second AMR, the first MAC address information is the same as the second MAC address information, and the master rank MR of the first node is higher than the first AMR, A processing module 502 configured to update the anchor master information of the first node according to the first anchor master information,
including.

The sending module 501 is further configured to send a second sync beacon frame if the processing module 502 determines that the preset node status of the first node is in sync. Optionally, the sending module 501 may send the second sync beacon frame within the current discovery window or the next discovery window.

Instead, the transmitting module 501 does not transmit the synchronous beacon frame when the processing module 502 determines that the preset node status of the first node is the asynchronous state.

The preset node status of the first node is the state of the first node before the transmitting module 502 receives the first synchronization beacon frame, the state of the first node when the current discovery window starts. , Or in the previous discovery window, containing the state of the first node. Reference may be made to step 103 of the embodiments herein for specific application scenarios. The similarities will not be described again in detail.

In this embodiment of the invention, the processing module 502 updates the anchor master information of the first node according to the first anchor master information, the anchor master information of the first node, and the MR of the first node. And determining if the preset node status of the first node is in sync state and sending a second sync beacon frame, which causes another node to sync with the first node. This to some extent prevents the node becoming an AM from sending sync beacon frames, effectively reducing the amount, occupancy, and waste of air interface resources of sync beacon frames.

Optionally, the processing module 502 in this embodiment of the invention is
It is further configured to determine whether the node status prior to the preset node status of the first node is in sync.

The transmission module 501 transmits a second synchronization beacon frame when the processing module 502 determines that the node status before the preset node status of the first node is the synchronization state, or If the processing module 502 determines that the previous node status of the node's preset node status is asynchronous, skip sending a second sync beacon frame within the current discovery window, and Further configured to send a second synchronization beacon frame within the discovery window of

Optionally, the transmitter module 501 in this embodiment of the invention is
It is further configured to receive a third sync beacon frame transmitted by a third node in the neighbor aware network, wherein the third sync beacon frame carries third anchor master information, and Anchor master information of the first node includes the third AMR, and the updated anchor master information of the first node includes the fourth AMR.

The processing module 502 skips updating the anchor master information of the first node if the third AMR is lower than the fourth AMR, and if the first node is in sync, then Send a sync beacon frame within the discovery window, or to update the updated anchor master information of the first node according to the third anchor master information when the third AMR is higher than the fourth AMR. Is further configured.

Referring to FIG. 6, the following describes a node in one embodiment of the present invention. Node 60 is used in a neighborhood aware network. Node 60
A transmitting module 601 configured to receive a first synchronization beacon frame transmitted by a second node in the neighbor aware network within a second half of the current discovery window, the first synchronization beacon The frame carries the first anchor master information, the first anchor master information comprises a first anchor master rank AMR, the anchor master information of the first node comprises a second AMR, A transmission module 601,
A processing module 602 configured to skip updating the current node status of the first node and the anchor master information of the first node if the first AMR is lower than the second AMR,
including.

In this embodiment of the invention, if the first node receives the first sync beacon frame within the second half of the discovery window, the processing module 602 may be lower than the first AMR, even if the first AMR is lower than the second AMR. Is defined as not changing the current node status of the first node or the anchor master information of the first node. Using this mechanism, a node that can become AM within some special time period can be effectively prevented from transmitting a sync beacon frame. The amount of AM in a short time can be reduced and the amount of sync beacon frames to transmit can be effectively reduced, which reduces waste of air interface resources. It

Optionally, the sending module 601 and the processing module 602 in this embodiment of the invention may further perform the operations in one of the following cases.

First case:

The processing module 602 in this embodiment of the invention is
It is further configured to determine if the current node status of the first node is in sync.

The sending module 601 in this embodiment of the invention sends a second sync beacon frame within the next discovery window if the processing module determines that the current node status of the first node is in sync. Or further configured to skip sending a synchronous beacon frame if the processing module 602 determines that the current node status of the first node is asynchronous.

Second case:

The processing module 602 in this embodiment of the invention is
Determine if the current node status of the first node is in sync,
When the current node status of the first node is in sync state, it is further configured to further determine whether the previous node status of the first node is in sync state.

The sending module 601 in this embodiment of the present invention sends a second sync beacon frame within the next discovery window when the processing module 602 determines that the previous node status of the first node is in sync. Or,
If processing module 602 determines that the previous node status of the first node is asynchronous, either skip sending a synchronous beacon frame or the current node status of the first node is asynchronous. If processing module 602 determines that there is, it is further configured to skip transmitting the sync beacon frame.

Referring to FIG. 7, the following describes another node in one embodiment of the present invention. Node 70 is used in a neighborhood aware network. Node 70
A processing module 701 configured to determine whether the previous node status of the first node is asynchronous.
A synchronization beacon in the current discovery window if the processing module 701 determines that the previous node status of the first node is asynchronous and the current node status of the first node is synchronous or asynchronous. A transmitting module 702 configured to skip transmitting a frame,
including.

In this embodiment, the two consecutive node statuses of the first node (of course, there may be more than two node statuses and more selection points have a better effect) are processed by the processing module 701. Judged according to the new definition. The first node that becomes AM is prevented from transmitting the above sync beacon frames, and the amount of sync beacon frames transmitted within the neighbor aware network can be effectively reduced within a certain period of time. This reduces the waste of air interface resources, which provides SDF with more opportunities to use air interface resources and allows service discovery between nodes to be performed in a timely manner. Yes, the utilization of network resources is effectively improved.

Optionally, the transmitting module 702 in this embodiment of the invention is
If the processing module 701 determines that the current node status of the first node is in sync and that the node status of the first node is in sync within the second half of the current discovery window, the current It is further configured to skip sending the sync beacon frame within the discovery window and send the sync beacon frame within the next discovery window.

Referring to FIG. 8, the following describes a node in one embodiment of the present invention. Node 80 is used in a neighbor aware network. Node 80
Get the master rank MR of another node in the neighborhood aware network,
A transmitting module 801 configured to receive a first sync beacon frame sent by a second node in a neighbor aware network, the first sync beacon frame carrying first anchor master information. And the first anchor master information comprises a first anchor master rank AMR, the first AMR comprises first medium access control MAC address information, the second anchor master of the first node The information includes second MAC address information, a transmitting module 801,
If the first AMR obtained by the transmission module 801 is lower than the preset percentage MR obtained by the transmission module and the first MAC address information is the same as the second MAC address information, then A processing module 802 configured to skip updating the anchor master information of the second,
including.

In this embodiment of the invention, the transmitting module 801 obtains the MR of another node in the neighborhood aware network in advance. After the sending module 801 receives the sync beacon frame, the processing module 802 compares the first anchor master information with the second anchor master information. If the first AMR is lower than a preset percentage of acquired MRs and the first MAC address information is the same as the second MAC address information, this is a synchronization beacon frame in the neighbor aware network. Indicates that the AMR of the node corresponding to is lower than the MR of most of the nodes. The second anchor master information does not need to be updated according to the first anchor master information, and the transmitting module 801 does not have to transmit sync beacon frames, which reduces the amount of sync beacon frames, Interface resources are saved.

When the transmitting node described in the embodiment corresponding to FIGS. 5 to 8 and the corresponding alternative embodiment receives or obtains some information, the transmitting node may be understood as a receiver and the transmitting node is When sending a message, a sending node may be understood as a transmitter. In addition, a processing module may be understood as a processor that performs some or all of the steps in the above embodiments.

The present invention further provides a computer storage medium. The medium stores the program. When the program is executed, some or all of the steps of the anchor master AM management method described above are executed.

The present invention further provides a computer storage medium. The medium stores the program. When the program runs, the above nodes perform some or all of the steps of the anchor master AM management method.

FIG. 9 is another schematic configuration diagram of the user node 90 according to the embodiment of the present invention. User node 90 may include at least one network interface or another communication interface, at least one receiver 901, at least one transmitter 902, at least one processor 903, and memory 904. , Thereby realizing connection and communication between these devices. At least one network interface (network interface can be wired or wireless) and at least one system gateway and at least one using the Internet, wide area network, local area network, metropolitan area network, etc. A communication connection with another network element may be used.

Memory 904 may include read only memory and random access memory and provides instructions and data to processor 903. A part of the memory 904 may further include a high speed random access memory (RAM), or may include a non-volatile memory.

Memory 904 includes the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:
Operation instructions including various operation instructions used to achieve various operations;
An operating system that includes various system programs that are used to implement various basic services and handle hardware-based tasks.

In this embodiment of the invention, processor 903 performs the following operations by invoking operation instructions stored in memory 904 (the operation instructions may be stored in an operating system):
An operation of receiving, using a receiver 901, a first sync beacon frame transmitted by a second node in a neighbor aware network, the first sync beacon frame carrying first anchor master information. The first anchor master information includes the first anchor master rank AMR, the first AMR includes the first medium access control MAC address information, the anchor master information of the first node, An operation including a second AMR, the second AMR including second MAC address information;
When the first AMR is lower than the second AMR, the first MAC address information is the same as the second MAC address information, and the master rank MR of the first node is higher than the first AMR, An operation of updating the anchor master information of the first node according to the first anchor master information by the first node,
When the preset node status of the first node is a synchronous state, the operation of transmitting a second synchronization beacon frame using the transmitter 902, or the preset node status of the first node is asynchronous If it is in a state, the operation of skipping the transmission of the synchronous beacon frame,
To execute.

The preset node status of the first node is the state of the first node before the first sync beacon frame was received, the state of the first node when the current discovery window started, or the previous Contains the state of the first node in the discovery window of.

Optionally, processor 903 uses transmitter 902 to transmit a second sync beacon frame within the current discovery window or the next discovery window.

In some implementations, the processor 903 performs the following steps before the first node sends the second synchronization beacon frame:
Determining whether the node status before the preset node status of the first node is in sync,
Transmitting a second synchronization beacon frame using the first node when the node status before the preset node status of the first node is in the sync state, or the preset of the first node If the previous node status of the registered node status is asynchronous, then skip sending a second sync beacon frame in the current discovery window using transmitter 902 and a second in the next discovery window. 2 transmitting a sync beacon frame,
May be further executed.

In some implementations, after the first node updates the anchor master information of the first node according to the first anchor master information, processor 903 performs the following steps:
Receiving a third sync beacon frame transmitted by a third node in the neighbor aware network using a receiver 901, the third sync beacon frame carrying third anchor master information. Then, the third anchor master information comprises a third AMR, the updated anchor master information of the first node comprises a fourth AMR, a step,
If the third AMR is lower than the fourth AMR, skip updating the anchor master information of the first node, and if the first node is in sync, then use transmitter 902 to The step of sending a sync beacon frame within the discovery window of, or, if the third AMR is higher than the fourth AMR, update the updated anchor master information of the first node according to the third anchor master information Steps,
May be further executed.

FIG. 10 is another schematic configuration diagram of the user node 100 according to the embodiment of the present invention. User node 100 may include at least one network interface or another communication interface, at least one receiver 1001, at least one transmitter 1002, at least one processor 1003, and memory 1004. , Thereby realizing connection and communication between these devices. At least one network interface (network interface can be wired or wireless) and at least one system gateway and at least one using the Internet, wide area network, local area network, metropolitan area network, etc. A communication connection with another network element may be used.

Memory 1004 may include read only memory and random access memory and provides instructions and data to processor 1003. A part of the memory 1004 may further include a high speed random access memory (RAM), or may include a non-volatile memory.

Memory 1004 includes the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:
Operation instructions including various operation instructions used to achieve various operations;
And an operating system that includes various system programs used to implement various basic services and process hardware-based tasks.

In this embodiment of the invention, the processor 1003 performs the following operations by calling operation instructions stored in the memory 1004 (the operation instructions may be stored in the operating system):
An operation of receiving a first sync beacon frame transmitted by a second node in a neighbor aware network with a receiver 1001 within a second half of the current discovery window, the first sync beacon frame Is carrying the first anchor master information, the first anchor master information comprises a first AMR, the anchor master information of the first node comprises a second AMR, the operation,
An operation of skipping updating the current node status of the first node and the anchor master information of the first node if the first AMR is lower than the second AMR;
To execute.

In some implementations, the processor 1003 performs the following steps,
Determining whether the current node status of the first node is in sync,
Sending a second sync beacon frame within the next discovery window using transmitter 1002 if the current node status of the first node is in sync, or the current node status of the first node Skipping sending a synchronous beacon frame when is in an asynchronous state,
May be further executed.

In some implementations, the processor 1003 performs the following steps,
Determining whether the current node status of the first node is in sync,
Further determining if the previous node status of the first node is in sync, if the current node status of the first node is in sync,
Sending a second sync beacon frame within the next discovery window using transmitter 902 if the previous node status of the first node is in sync, or the previous node status of the first node If the is in an asynchronous state, skip sending a synchronous beacon frame, or if the current node status of the first node is in an asynchronous state, skip sending a synchronous beacon frame. ,
May be further executed.

FIG. 11 is another schematic configuration diagram of the user node 110 according to an embodiment of the present invention. User node 110 may include at least one network interface or another communication interface, at least one receiver 1101, at least one transmitter 1102, at least one processor 1103, and memory 1104. , Thereby realizing connection and communication between these devices. At least one network interface (network interface can be wired or wireless) and at least one system gateway and at least one using the Internet, wide area network, local area network, metropolitan area network, etc. A communication connection with another network element may be used.

Memory 1104 may include read only memory and random access memory and provides instructions and data to processor 1103. A part of the memory 1104 may further include a high speed random access memory (RAM) or a non-volatile memory.

Memory 1104 includes the following elements, executable modules or data structures, or subsets thereof, or extended sets thereof:
Operation instructions including various operation instructions used to achieve various operations;
And an operating system that includes various system programs used to implement various basic services and process hardware-based tasks.

In this embodiment of the invention, processor 1103 performs the following operations by invoking operation instructions stored in memory 1104 (the operation instructions may be stored in an operating system):
The operation to determine whether the previous node status of the first node is asynchronous,
A sync beacon frame within the current discovery window using transmitter 1102 when the previous node status of the first node is asynchronous and the current node status of the first node is synchronous or asynchronous. The action of skipping sending
To execute.

In some implementations, processor 1103 performs the following steps:
A sync beacon frame in the current discovery window if the current node status of the first node is sync and the node status of the first node is sync in the latter half of the current discovery window. May be skipped, but the step of transmitting a sync beacon frame within the next discovery window using transmitter 1102 may be further performed.

FIG. 12 is another schematic configuration diagram of the user node 120 according to an embodiment of the present invention. User node 120 may include at least one network interface or another communication interface, at least one receiver 1201, at least one transmitter 1202, at least one processor 1203, and memory 1204. , Thereby realizing connection and communication between these devices. At least one network interface (network interface can be wired or wireless) and at least one system gateway and at least one using the Internet, wide area network, local area network, metropolitan area network, etc. A communication connection with another network element may be used.

Memory 1204 may include read only memory and random access memory and provides instructions and data to processor 1203. A portion of the memory 1204 may further include high speed random access memory (RAM), or may include non-volatile memory.

Memory 1204 includes the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:
Operation instructions including various operation instructions used to achieve various operations;
An operating system that includes various system programs that are used to implement various basic services and handle hardware-based tasks.

In this embodiment of the present invention, the processor 1203 performs the following operations by calling operation instructions stored in the memory 1204 (the operation instructions may be stored in the operating system):
The operation of using the receiver 1201 to obtain the master rank MR of another node in the neighborhood aware network,
An operation of receiving, using a receiver 1201, a first sync beacon frame transmitted by a second node in a neighbor aware network, the first sync beacon frame carrying first anchor master information. And the first anchor master information comprises a first anchor master rank AMR, the first AMR comprises first medium access control MAC address information, the second anchor master of the first node The operation, wherein the information includes second MAC address information,
If the first AMR is lower than the preset percentage MR obtained by the first node and the first MAC address information is the same as the second MAC address information, then the second anchor master. The act of skipping updating information,
To execute.

In the above embodiments, the description of each embodiment has its own focus. For parts not described in detail in one embodiment, reference may be made to the relevant description of the other embodiments.

For purposes of brevity and simplicity, reference may be made to the corresponding processes in the method embodiments above for detailed operational processes of the systems, devices, and units described above. It can be clearly understood by a person skilled in the art that the details are not described again here.

It should be appreciated that in some embodiments provided in this application, the disclosed systems, devices, and methods may be implemented in other forms. For example, the described apparatus embodiment is but one example. For example, the unit division is merely a logical function division and may be another division in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not implemented. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections may be realized using several interfaces. Indirect couplings or communication connections between devices or units may be implemented electronically, mechanically, or otherwise.

Units described as separate parts may or may not be physically separated, and parts shown as units may or may not be physical units. It may be located at a location or distributed across multiple network units. Some or all of the units may be selected according to the actual requirements to achieve the goals of the solution of the embodiment.

In addition, the functional units in embodiments of the present invention may be integrated into one processing unit, or each of the units may be physically present alone or two or more units may Integrated into one unit. The integrated unit may be implemented in the form of hardware or a software functional unit.

When the integrated unit is implemented in the form of a software functional unit and is sold or used as an independent product, the integrated unit may be stored on a computer-readable storage medium. Based on such an understanding, the technical solutions of the present invention, or the parts contributing to the prior art, or all or some of the technical solutions may be realized in the form of software products. The software product is stored on a storage medium and causes a computer node (which may be a personal computer, a server, or a network node) to perform all or some of the method steps described in the embodiments of the present invention. Includes several instructions for ordering. The above storage medium may be a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. And any medium capable of storing the program code.

The anchor master AM management method and node provided in the present invention are described in detail above. Specific examples are used in this specification to illustrate the principles and implementations of the present invention. The description of the embodiments is provided merely to aid in the understanding of the method and core ideas of the present invention. In addition, those skilled in the art can make changes and modifications to the present invention in terms of specific implementation and application scope according to the idea of the present invention. In conclusion, the content of this specification should not be construed as a limitation of the present invention.

50 nodes
60 nodes
70 nodes
80 nodes
90 user nodes
100 user nodes
110 user node
120 user nodes
501 transmitter module
502 processing module
601 transmitter module
602 processing module
701 processing module
702 Transmission module
801 transmitter module
802 Processing Module
901 receiver
902 transmitter
903 processor
904 memory
1001 receiver
1002 transmitter
1003 processor
1004 memory
1101 receiver
1102 transmitter
1103 processor
1104 memory
1201 receiver
1202 transmitter
1203 processor
1204 memory

Claims (33)

Anchor master (AM) node management method, said method being used in a neighbor aware network,
The first synchronization beacon frame transmitted by the second node in the neighbor aware network, the step of receiving by the first node, the first synchronization beacon frame, the first anchor master information. Carrying, said first anchor master information comprises a first anchor master rank (AMR), said first AMR comprising first medium access control (MAC) address information, said first Anchor master information of the node of includes a second AMR, the second AMR includes a second MAC address information, a step,
The first AMR is lower than the second AMR, the first MAC address information is the same as the second MAC address information, the master rank (MR) of the first node is the first If higher than AMR, by the first node, updating the anchor master information of the first node according to the first anchor master information,
When the preset node status of the first node is in a synchronized state, the step of transmitting a second synchronization beacon frame by the first node, or the preset node status of the first node When is in an asynchronous state, skipping transmitting a synchronous beacon frame by the first node,
Anchor master (AM) node management method including. Prior to the step of transmitting a second synchronization beacon frame by the first node when the preset node status of the first node is in synchronization, the method is:
By the first node, the step of determining whether the node status before the preset node status of the first node is a synchronization state,
When the node status before the preset node status of the first node is a synchronization state, the step of transmitting the second synchronization beacon frame by the first node, or of the first node Skipping sending the second sync beacon frame within the current discovery window by the first node and skipping the next discovery window if the node status before the preset node status is asynchronous. Transmitting the second synchronization beacon frame within,
The method of claim 1, further comprising: The preset node status of the first node is the state of the first node before the first synchronization beacon frame is received, of the first node when the current discovery window is started. State, or including the state of said first node in the previous discovery window,
The method according to claim 1 or 2. The step of transmitting a second synchronization beacon frame by the first node,
4. The method of claim 1 or 3, comprising transmitting the second synchronization beacon frame by the first node within a current discovery window or a next discovery window. By the first node, after the step of updating the anchor master information of the first node according to the first anchor master information, the method,
A third synchronization beacon frame transmitted by a third node in the neighbor aware network, the step of receiving by the first node, the third synchronization beacon frame is a third anchor master information. And the third anchor master information comprises a third AMR, the updated anchor master information of the first node comprises a fourth AMR, and
If the third AMR is lower than the fourth AMR, skip updating the anchor master information of the first node by the first node, the first node is in synchronization Then, the step of transmitting a synchronization beacon frame within the next discovery window by the first node, or, if the third AMR is higher than the fourth AMR, by the first node Updating the updated anchor master information of the first node according to the anchor master information of 3,
The method according to any one of claims 1 to 4, further comprising: Anchor master (AM) management method, said method being used in a neighbor aware network,
In the neighbor aware network, receiving a first synchronization beacon frame transmitted by a second node by the first node within a second half of the current discovery window, the first synchronization The beacon frame carries the first anchor master information, the first anchor master information comprises a first AMR, the anchor master information of the first node comprises a second AMR, a step, ,
Skipping updating the current node status of the first node and the anchor master information of the first node by the first node if the first AMR is lower than the second AMR; Steps,
Anchor master (AM) management method including. The method is
By the first node, determining whether the current node status of the first node is in sync,
Transmitting a second synchronization beacon frame within the next discovery window by the first node when the current node status of the first node is in sync state, or the current state of the first node Skipping transmitting a synchronous beacon frame by the first node when the node status is asynchronous,
7. The method of claim 6, further comprising: The method is
By the first node, determining whether the current node status of the first node is in sync,
If the current node status of the first node is in sync state, by the first node, determining whether the previous node status of the first node is in sync state,
Sending the second synchronization beacon frame within the next discovery window by the first node when the node status before the first node is in sync state, or before the first node If the node status of the first node is in the asynchronous state, the step of skipping transmitting a synchronous beacon frame by the first node, or, if the current node status of the first node is in the asynchronous state, Skipping sending a sync beacon frame by one node,
7. The method of claim 6, further comprising: Anchor master (AM) management method, said method being used in a neighbor aware network,
By the first node, determining whether the previous node status of the first node is asynchronous,
Synchronized by the first node in the current discovery window if the previous node status of the first node is asynchronous and the current node status of the first node is synchronous or asynchronous. Skipping sending a beacon frame,
Anchor master (AM) management method including. The method is
The first node's current node status is in sync state, and within the latter half of the current discovery window, if the first node's node status is in sync state, 10. The method of claim 9, further comprising: skipping sending a sync beacon frame within a current discovery window and sending the sync beacon frame within a next discovery window. Anchor master (AM) management method, said method being used in a neighbor aware network,
Obtaining a master rank (MR) of another node in the neighborhood aware network by a first node;
A first synchronization beacon frame transmitted by a second node in the neighbor aware network, the step of receiving by the first node, the first synchronization beacon frame, the first anchor master information. And the first anchor master information comprises a first anchor master rank (AMR), the first AMR comprises first medium access control (MAC) address information, and The second anchor master information of the one node comprises second MAC address information,
If the first AMR is lower than a preset percentage MR obtained by the first node and the first MAC address information is the same as the second MAC address information, then the Skipping updating the second anchor master information by a first node,
Anchor master (AM) management method including. A node used in a neighbor aware network,
A transmitting module configured to receive a first sync beacon frame sent by a second node in the neighbor aware network, wherein the first sync beacon frame comprises a first anchor master information. Carrying, said first anchor master information comprises a first anchor master rank (AMR), said first AMR comprising first medium access control (MAC) address information, The node anchor master information comprises a second AMR, the second AMR comprising a second MAC address information, a transmission module,
The first AMR is lower than the second AMR, the first MAC address information is the same as the second MAC address information, the master rank (MR) of the first node is the first A processing module configured to update the anchor master information of the first node according to the first anchor master information, if higher than AMR;
Including
The sending module is further configured to send a second sync beacon frame if the processing module determines that the preset node status of the first node is in sync, or The transmitting module is further configured to skip transmitting a synchronous beacon frame when the processing module determines that the preset node status of the first node is in an asynchronous state,
node. The processing module is
Further configured to determine whether the node status prior to the preset node status of the first node is in sync,
The transmission module, if the processing module determines that the node status before the preset node status of the first node is in a synchronization state, transmits the second synchronization beacon frame, or Sending the second synchronization beacon frame within the current discovery window if the processing module determines that the node status before the preset node status of the first node is in an asynchronous state; Further configured to skip and send said second sync beacon frame within the next discovery window,
The node according to claim 12. The preset node status of the first node is the state of the first node before the first synchronization beacon frame is received by the transmitting module, the first when the current discovery window starts. 14. A node according to claim 12 or 13, comprising the state of one node, or the state of said first node within a previous discovery window. The transmission module, specifically,
15. The node according to claim 12 or 14, configured to transmit the second synchronization beacon frame within a current discovery window or a next discovery window. The transmission module is
Further configured to receive a third sync beacon frame transmitted by a third node in the neighbor aware network, the third sync beacon frame carrying third anchor master information, and The anchor master information of 3, includes a third AMR, the updated anchor master information of the first node includes a fourth AMR,
The processing module skips updating anchor master information of the first node if the third AMR is lower than the fourth AMR, and if the first node is in sync. For example, the third anchor is further configured to send a synchronous beacon frame within a next discovery window, or the processing module is the third anchor if the third AMR is higher than the fourth AMR. Further configured to update the updated anchor master information of the first node according to master information,
The node according to any one of claims 12 to 15. A node used in a neighbor aware network,
A transmitting module configured to receive a first synchronization beacon frame transmitted by a second node in the neighbor aware network within a second half of the current discovery window, the first synchronization A beacon frame carries first anchor master information, the first anchor master information comprising a first anchor master rank (AMR), the anchor master information of the first node being a second anchor master information. Transmitter module, including AMR,
A process configured to skip updating the current node status of the first node and anchor master information of the first node if the first AMR is lower than the second AMR. A node that contains modules and. The processing module is
Further configured to determine if the current node status of the first node is in sync state,
The transmitting module transmits a second synchronization beacon frame within a next discovery window when the processing module determines that the current node status of the first node is in synchronization, or Further configured to skip sending a sync beacon frame if the processing module determines that the current node status of the one node is asynchronous.
The node according to claim 17. The processing module is
Determining whether the current node status of the first node is in sync,
Further configured to further determine if the previous node status of the first node is in sync if the current node status of the first node is sync.
The transmitting module transmits the second synchronization beacon frame within the next discovery window if the processing module determines that the previous node status of the first node is in synchronization, or If the processing module determines that the previous node status of the first node is in an asynchronous state, skip sending a synchronous beacon frame, or the current node status of the first node is in an asynchronous state. Further configured to skip sending a sync beacon frame if the processing module determines that
The node according to claim 17. A node used in a neighbor aware network,
A processing module configured to determine whether the previous node status of the first node is asynchronous.
In the current discovery window, if the processing module determines that the previous node status of the first node is asynchronous and the current node status of the first node is synchronous or asynchronous. A transmitting module configured to skip transmitting a synchronous beacon frame. The transmission module is
When the processing module determines that the current node status of the first node is in the synchronous state and the node status of the first node is in the synchronous state within the latter half period of the current discovery window. 21. The node of claim 20, further configured to: skip sending a sync beacon frame within the current discovery window and send the sync beacon frame within a next discovery window. A node used in a neighbor aware network,
Obtain the master rank (MR) of another node in the neighbor aware network,
A transmitting module configured to receive a first synchronization beacon frame transmitted by a second node in the neighbor aware network, wherein the first synchronization beacon frame comprises a first anchor master information. Carrying, said first anchor master information comprises a first anchor master rank (AMR), said first AMR comprising first medium access control (MAC) address information, The second anchor master information of the node, the transmission module, including the second MAC address information,
If the first AMR obtained by the transmitting module is lower than the preset percentage MR obtained by the transmitting module and the first MAC address information is the same as the second MAC address information. A processing module configured to skip updating the second anchor master information,
A node that contains. A node used in a neighbor aware network,
A processor,
A memory configured to store computer-executable program code,
Communication interface,
A receiver and a transmitter,
Including
The processor, the receiver, the transmitter, the storage device, and the communication interface communicate with each other using a bus,
When the processor reads the program code and data stored in the storage device, the program code includes an instruction, and the processor executes the instruction, the instruction causes the processor to perform the following operation:
A first synchronization beacon frame transmitted by a second node in the neighbor aware network, the operation of receiving using the receiver, the first synchronization beacon frame, the first anchor master information. The first anchor master information includes a first anchor master rank (AMR), the first AMR includes first medium access control (MAC) address information, and Anchor master information of the node of includes a second AMR, the second AMR includes a second MAC address information, the operation,
The first AMR is lower than the second AMR, the first MAC address information is the same as the second MAC address information, the master rank (MR) of the first node is the first If higher than AMR, the operation of updating the anchor master information of the first node according to the first anchor master information,
When the preset node status of the first node is in a synchronized state, the operation of transmitting a second synchronization beacon frame using the transmitter, or the preset node status of the first node If the is in an asynchronous state, the operation to skip sending a synchronous beacon frame,
To be able to perform
node. When the preset node status of the first node is in a synchronization state, before the operation of transmitting a second synchronization beacon frame using the transmitter, the processor, the following operation,
An operation of determining whether the node status before the preset node status of the first node is in a synchronous state,
When the node status before the preset node status of the first node is a synchronization state, the operation of transmitting the second synchronization beacon frame using the transmitter, or of the first node Skipping sending the second sync beacon frame in the current discovery window with the transmitter, if the previous node status of the preset node status is in an asynchronous state, and the next discovery window. An operation of transmitting the second synchronization beacon frame within,
24. The node of claim 23, further comprising: The preset node status of the first node is the state of the first node before the first synchronization beacon frame is received, of the first node when the current discovery window is started. State, or including the state of said first node in the previous discovery window,
The node according to claim 23 or 24. The operation of transmitting a second synchronization beacon frame with the transmitter by the processor,
26. The node according to claim 23 or 25, comprising: using the transmitter to transmit the second synchronization beacon frame within a current discovery window or a next discovery window. After the operation of updating the anchor master information of the first node according to the first anchor master information, the processor,
A third synchronization beacon frame transmitted by a third node in the neighbor aware network, the operation of receiving using the receiver, the third synchronization beacon frame, the third anchor master information. The third anchor master information comprises a third AMR, the updated anchor master information of the first node comprises a fourth AMR, the operation,
If the third AMR is lower than the fourth AMR, skip updating the anchor master information of the first node, if the first node is in synchronization, the transmitter An operation of transmitting a synchronous beacon frame within the next discovery window using, or updating the first node according to the third anchor master information when the third AMR is higher than the fourth AMR. Operation to update the anchor master information
27. The node according to any one of claims 23 to 26, further comprising: A node used in a neighbor aware network,
A processor,
A memory configured to store computer-executable program code,
Communication interface,
Including receiver and transmitter,
The processor, the receiver, the transmitter, the storage device, and the communication interface communicate with each other using a bus,
When the processor reads the program code and data stored in the storage device, the program code includes an instruction, and the processor executes the instruction, the instruction causes the processor to perform the following operation:
An operation of receiving a first synchronization beacon frame transmitted by a second node in the neighbor aware network within the second half of the current discovery window using the receiver, the first synchronization The beacon frame carries a first anchor master information, the first anchor master information comprises a first AMR, the anchor master information of the first node comprises a second AMR, the operation ,
An operation of skipping updating the current node status of the first node and anchor master information of the first node when the first AMR is lower than the second AMR,
To be able to perform
node. The processor operates as follows,
An operation of determining whether the current node status of the first node is in a synchronous state,
An operation of transmitting a second synchronization beacon frame within the next discovery window using the transmitter when the current node status of the first node is in a synchronization state, or the current of the first node When the node status is in an asynchronous state, the operation of skipping sending a synchronous beacon frame,
29. The node of claim 28, further comprising: The processor is
An operation of determining whether the current node status of the first node is in a synchronous state,
If the current node status of the first node is in sync state, further operation of determining whether the previous node status of the first node is in sync state,
An operation of transmitting the second synchronization beacon frame within the next discovery window using the transmitter when the node status before the first node is in a synchronization state, or before the first node When the node status of is a non-synchronous state, the operation to skip transmitting a synchronous beacon frame, or, if the current node status of the first node is an asynchronous state, to transmit a synchronous beacon frame The action to skip,
29. The node of claim 28, further comprising: A node used in a neighbor aware network,
A processor,
A memory configured to store computer-executable program code,
Communication interface,
Including receiver and transmitter,
The processor, the receiver, the transmitter, the storage device, and the communication interface communicate with each other using a bus,
When the processor reads the program code and data stored in the storage device, the program code includes an instruction, and the processor executes the instruction, the instruction causes the processor to perform the following operation:
The operation to determine whether the previous node status of the first node is asynchronous,
Synchronize within the current discovery window with the transmitter if the previous node status of the first node is asynchronous and the current node status of the first node is synchronous or asynchronous. The operation of skipping the transmission of beacon frames,
To be able to perform
node. The processor operates as follows,
If the current node status of the first node is in sync, and within the latter half of the current discovery window, the node status of the first node is in sync, then using the transmitter 32. The node of claim 31, further comprising: skipping sending a sync beacon frame in a current discovery window and sending the sync beacon frame in a next discovery window. A node used in a neighbor aware network,
A processor,
A memory configured to store computer-executable program code,
Communication interface,
Including receiver and transmitter,
The processor, the receiver, the transmitter, the storage device, and the communication interface communicate with each other using a bus,
When the processor reads the program code and data stored in the storage device, the program code includes an instruction, and the processor executes the instruction, the instruction causes the processor to perform the following operation:
An operation of obtaining a master rank (MR) of another node in the neighbor aware network,
An operation of receiving a first sync beacon frame transmitted by a second node in the neighbor aware network, wherein the first sync beacon frame carries first anchor master information and the first Of the anchor master information includes a first anchor master rank (AMR), the first AMR includes first medium access control (MAC) address information, and a second anchor of the first node. Anchor master information includes the second MAC address information, the operation,
If the first AMR is lower than a preset percentage MR obtained by the first node and the first MAC address information is the same as the second MAC address information, then the The operation of skipping updating the second anchor master information,
To be able to perform
node.

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