TWI392274B - Multi-node communication system and method of requesting, reporting and collecting destination node-based measurements and route-based measurements - Google Patents

Description

Multi-node communication system and method for requesting, reporting and collecting target node-based measurement and path-based measurement

The present invention relates to a communication system having multiple nodes. More particularly, the present invention relates to requirements, reporting, and collection measurements in a mesh network having multiple mesh points (MPs).

A typical wireless system architecture has a set of access points (APs), also referred to as base stations (BSs), that are connected to the wiring network by a commonly known backhaul link. In some scenarios, directly connecting a given access point to a wiring network instead of indirectly connecting the access point to the wiring network by relaying information to and from its neighboring access points is more predictable.

This is called a mesh architecture. In other scenarios, the advantages of using a mesh architecture are ease of use and configuration speed because the wireless network does not need to provide a backhaul link set interconnect module for each access point to be configured.

In the context of a mesh system, sometimes it is not enough for a node to measure the nodes with which it can communicate directly. This means that the measurement request frame and the measurement report frame must not only specify the node to which the frame is transmitted, but also the node to which the measurement request/report is scheduled. At the same time, in the mesh system, because the user's perceived performance and quality are based on the fact that the mediation hops involved in the forwarding packet are more than the target node itself, there is a collection of connected resources and targets (ie, paths). The measurement of the node, not the limit, reports only the value of the measurement of the node.

The present invention is directed to methods for measuring, reporting, and collecting target nodes based on mesh points. The invention also encompasses methods for measuring, reporting, and collecting path-based measurements by mesh points.

The present invention is directed to methods for measuring, reporting, and collecting target nodes based on mesh points. In an embodiment, the target node-based measurement requirement is to use the next hop unicast, the next hop multicast, or the next hop to deliver the addressed route, via the target unicast, the target multicast or The target propagation is transmitted to one or more target nodes.

In accordance with the present invention, multiple mesh points in a mesh point network require, report, and collect multi-hop measurements along single and multiple mesh paths. In this case, the mesh point requires measurements of all nodes rising to a specific target point. The next hop and the target address can be specified as unicast, multicast or spread.

The invention includes several transmission mechanisms and options to report measurements. The concept that can be applied to the measurement report selection includes causing the measurement request message to request one or more measurement reports in a single message.

The concept that can be applied to the measurement report selection includes making the measurement request message require measurement once, periodic measurement reports or threshold-based measurement reports.

The concept that can be applied to the measurement report selection includes having the mesh point return the measurement report message, or it can carry the report on other data, control or management frames. Each node combines its self-measurement in the measurement request message before it forwards it to the node where the next mesh point rises to the final target. When the final target node receives the measurement request message, it transmits its self-measurement plus all other nodes are measured in the measurement report message.

The preferred embodiments will be described with reference to the drawings, in which like numerals represent like elements.

Hereinafter, the term "wireless transmit/receive unit (WTRU)" is used to include, but is not limited to, user equipment (UE), mobile stations, fixed or mobile subscriber units, pagers, or any other operable in a wireless environment. Type user device.

Features of the invention may be incorporated into an integrated circuit (IC) or configured in a circuit comprising multiple interconnected components.

The list contains project definitions that are used to illustrate the invention. The actual complete meaning is not limited to this definition: the target address: this is the node address to which the packet is ultimately scheduled. In the measurement support and organization context, this involves the measurement request or the node address to which the report is scheduled.

Next Hop Point Address: This is the node address that is transmitted during the next available wireless transmission. In the measurement support and mechanism context, this involves receiving the measurement request and forwarding it to the next node address of the next node in the transmission between the two nodes (ie, the source and the target).

Target Unicast: A measurement requirement or report that is scheduled to a single mesh point (including a mesh station (STA) and a mesh access point).

Targeted Multicast: A measurement requirement or report that is scheduled to be at most mesh points (including mesh stations (STAs) and mesh access points).

Target Propagation: Refers to measurement requirements or reports that are scheduled to all mesh points in the mesh system, including mesh stations (STAs) and mesh access points.

Next hop unicast: A process involving the transmission of a frame to a single (and most likely preferred) intermediate node as part of transmitting a packet to the target node. Using the next hop unicast means that a single path is used to transmit measurement requests or reports via the mesh network.

Next Hop Multicast: A process involving the transmission of a frame to a multi-intermediate node as part of transmitting a packet to the target node. Using Next Hop Point Multicast means that multipath is used to transmit measurement requests or reports via the mesh network.

Next hop propagation: A process involving the transmission of a frame to all intermediate nodes within the arrival as a transport packet to the target node. Using next hop propagation means that all available paths are probed to transmit measurement requests or reports via the mesh network.

Mesh measurement requirements: The fields included in the mesh measurement requirements include but are not limited to: 1) source address; 2) target address (which may be unicast, multicast or propagate); 3) next hop Address (may be unicast, multicast or propagate); 4) maximum number of next hop addresses (applicable only in the next multicast case), you can specify the intermediate mesh point to transfer the mesh measurement request to Maximum different nodes; 5) required to measure (such as node address, channel load or similar); 6) reporting criteria (such as now, periodic, threshold based or similar); 7) measurement type (such as node-based, Link-based, path-based or similar); 8) labeling measurement requirements are subject-based or path-based flags; 9) measurement report type; and 10) indicating whether the target node is required to transmit a measurement per transaction The report (where the transaction is considered a measurement requirement), or whether the target node should transmit a banner of the measurement report when it receives each version of the measurement request. When measurement requirements/reports are used to collect performance associated with multipathing, although more traffic is generated in the system, the latter selection can be expected.

The present invention provides methods for measuring, reporting, and collecting target node-based measurements and path-based measurements by mesh points.

In an embodiment, the target node-based measurement requirement may be unicast via the next hop, the next hop multicast or the next hop propagation is determined by the target unicast, the target multicast or the target propagation Transferred to one or more target nodes.

When the intermediate node receives the measurement request, the intermediate node forwards the measurement request to the next hop. When the next hop multicast/propagation, the intermediate node will lower the "maximum number of next hop address" value to a new value. The starting value is set by the source mesh point (as configured). If the reduced value is greater than zero, the intermediate node may multicast the measurement request containing the new value via the next hop point multicast/propagation. Otherwise, the intermediate node unicasts the measurement request using the next hop.

When the target node receives the measurement request, the target node may process the measurement request using the source address specified in the measurement request, and transmit the determined measurement report back to the source node. Depending on the type of measurement requirement, the target node may transmit a report via a link or via a multi-link received from the measurement request.

When any intermediate node receives the measurement report, the intermediate node forwards the measurement report to the next hop. The mediation node can view the content of the measurement report through it.

The first and second figures are signal flow diagrams for signal transmission between mesh points according to the present invention, wherein "SA" represents the starting source address, "TA" represents the transmitter address, and "RA" represents the receiver address. And "DA" indicates the final target address. Figure 1 depicts the mechanism for measuring based on the target node of the target unicast/next hop unicast addressing. Figure 2 depicts the mechanism for the measurement based on the target node of the target unicast/next hop multicast/propagation.

Next hop unicast addressing

1 shows an example of a communication system including multiple nodes in accordance with an embodiment of the present invention. The communication system 100 can be a mesh network comprising a plurality of mesh points having a mesh point 1, a mesh point 2, a mesh point 3, and a mesh point 4. The mesh point 1 can be regarded as the source node, the mesh point 2 and the mesh point 3 can be regarded as the intermediate nodes, and the mesh point 4 can be regarded as the final target node.

As shown in Figure 1, the source node, mesh point 1 can use the target unicast/next hop unicast addressing to transmit the "target node-based" measurement request message to the mesh point 4 (step 105), while the network The point 1 can transmit the measurement request message to the mesh point 4 via the mesh point 2, the mesh point 4 is the target address, and the mesh point 2 is the one hop address below the measurement request message (step 110). . When the mesh point 2 receives the measurement request message based on the target node, the mesh point 2 may determine a hop point below the mesh point 4 (step 115), and the mesh point 2 transfers the measurement based on the target node. The message is requested to the next hop (ie, mesh point 3) (step 120). When the mesh point 3 receives the measurement request message based on the target node, the mesh point 3 may determine a hop point below the mesh point 4 (step 125), and the mesh point 3 transfers the measurement based on the target node. The message is requested to the next hop (ie, mesh point 4) (step 130). When the final target node receives the target node-based measurement request message, if the measurement result is not available, the mesh point 4 can establish a measurement (step 135), and the measurement report message is returned via the mesh point 3. Passed to the mesh point 1 (step 140), the mesh point 1 is the target address, and the mesh point 3 is the one hop address below the measurement report. When the mesh point 3 receives the measurement report message, it may decide to face a hop point below the mesh point 1 (step 145), and the mesh point 3 forwards the measurement report message to the next hop point (ie, the mesh point) 2) (Step 150). When the mesh point 2 receives the measurement report message, it may decide to face a hop point below the mesh point 1 (step 155), and the mesh point 3 forwards the measurement report message to the starting source of the measurement request (ie, the network) Point 1) (step 160). All of these messages are sent using unicast messages.

Next hop multicast/propagation addressing

In another embodiment, the "maximum number of next hop address" can be used to reduce the proliferation of the next hop multicast/propagation frame. The logic within the mesh point can also be used to know that the originating source address and the original measurement request transaction identification number are used to reduce the blockage caused by the compression transfer connection multicast/propagation request.

In the example of a measurement request for receiving multiple next hop transmissions, the target node visual measurement report is determined to be passed back to the source via one or all of the links from which the measurement request was received.

Signaling expenditures associated with measurement requirements/reports and multicast message proliferation can be reduced. As shown in Figure 2, the dashed signal transmission is intended to indicate these messages and can be removed from the case where the mesh point receives the message but does not forward it to the message transmitter again. For example, although mesh point 1 is considered to be a hop neighbor below mesh point 2, because mesh point 2 only receives it from mesh point 1, mesh point 2 does not send the message back to the mesh point. 1. Furthermore, when the mesh point receives messages from two different mesh points twice, the mesh point only forwards a message to its next hop neighbor.

Figure 2 shows an example of a communication system 200 including multiple nodes in accordance with one embodiment of the present invention. The communication system 200 can be a mesh network comprising a plurality of mesh points having a mesh point 1, a mesh point 2, a mesh point 3, and a mesh point 4. The mesh point 1 can be regarded as the source node, the mesh point 2 can be regarded as the intermediate node, and the mesh point 3 can be regarded as the final target node.

As shown in FIG. 2, the mesh point 1 can use the target unicast/next hop unicast addressing to transmit the "target node based" measurement request message to the mesh point 3 (step 205). The mesh point 1 can multicast the measurement request message directly received by the mesh point 3 (step 210A) and the mesh point 2 (step 210B). When the mesh point 3 receives the measurement request message, if the measurement result is not available, the mesh point 3 can regard itself as the final target, establish the required measurement (step 215), and then transmit the measurement report message back to the network. Point 1 (step 220). When the mesh point 2 receives the measurement request message, the mesh point 2 can determine that it is not the final target, and lowers the "maximum number of next hop address" to determine whether it should continue to propagate the message via the next hop multicast ( Step 225). If the "maximum number of next hop address" is greater than zero, the mesh point 2 can be multicast transmitted via the next hop point by the mesh point 3 (step 230A) and optionally the mesh point 1 (step 230B). Measurement request message. Alternatively, since the mesh point 2 receives the measurement request message from the mesh point 1, the transfer scheme of the mesh point 2 ensures that the mesh point 2 does not return it to the mesh point 1. In any example, if the mesh point 1 receives the measurement request message, the mesh point 1 can learn from the source address and the transaction identification number that the measurement request message is a duplicate of the ongoing transaction and any further multicast of the compressed message ( Step 235). When the mesh point 3 receives the forwarding version of the measurement request via the mesh point 2, if so requested, it can selectively transmit a corresponding measurement report message via the mesh point 2 (step 240). When the mesh point 2 receives the measurement report message (step 245A), the mesh point 2 can pass it back to the mesh point 1 (step 245B).

As shown in Figure 2, when the next hop multicast or propagation is used, the same target node (such as mesh point 3) can receive different versions of the same measurement requirement. Similarly, when the next hop multicast or propagation is used, the source (e.g., mesh point 1) can receive multiple measurement reports associated with the same measurement requirement (i.e., the same transaction identification). It should be noted that this behavior can be expected for the source node to explore the system to gain insight into the context of the performance associated with the different paths. In this context, each version of the measurement requirements and measurement report has a different identification number. In a preferred implementation, the unique identification number is a path identification number that exists in the node identification number link that is used to carry the packet from the source to the target and optionally back to the source. In a preferred implementation, each node involved in forwarding the packet attaches its node identification number to the source identification number so that the path identification number can be self-constructed.

The present invention includes methods for requesting, reporting, and collecting multi-hop points along a single and multiple mesh path for mesh points. In this case, the mesh point requires measurements of all nodes rising to a specific target point. In this method, the next hop and the target address can be unicast, multicast or propagated.

In a mesh network, a mesh point is measured based on the path of multiple mesh points in a multi-hop point in a single mesh path. All mesh points in the path from the source access point to the target mesh point are required to return the measurement to the source node. Alternatively, the mediation node can also look at and use other mesh point measurements on this path.

Figure 3 shows an example of a communication system 300 including multiple nodes in accordance with one embodiment of the present invention. The communication system 300 can be a mesh network comprising a plurality of mesh points having a mesh point 1, a mesh point 2, a mesh point 3, ..., a mesh point n. The mesh point 1 can be regarded as the source node, the mesh point 2 and the mesh point 3 can be regarded as the intermediate node, and the mesh point n can be regarded as the final target node. As shown in FIG. 3, the source node, the mesh point 1 can transmit a multi-hop point measurement request message to a path (ie, a mesh path) to include one or more intermediate nodes, the mesh point 2, the mesh point 3 The final target mesh point, the mesh point n. Based on the multi-hop measurement requirements measurement, all nodes in the path reply the requested measurement to the source mesh point via the measurement report message, mesh point 1. When receiving the measurement report message, the source mesh point and the mesh point 1 collect the measurement information. The mesh point 1, the mesh point 2, the mesh point 3, ..., the mesh point n belong to the same path. The source mesh point may require measurement of one or more mesh points in the path. Alternatively, the mediation node can also look at and use other mesh point measurements on this path.

Figure 4 depicts a multi-mesh path whereby the source node, mesh point 1 can be based on multi-node mesh point 2, mesh point 3, mesh point 4, mesh point 5 transmission path based multi-hop point measurement requirements The message goes to a specific target node. In this scheme, the mesh point 1 transmits measurement request messages 1a, 3a, which are transmitted to the mesh point 5 on the multipath. When the mesh point 4 receives the measurement request message 1a, it checks the next hop point and the target address and forwards the measurement request message 1b, 2b to the mesh point 3 and the mesh point 5, respectively. When the mesh point 2 receives the measurement request message 3a, it checks the next hop point and the target address and forwards the measurement request message 3b to the mesh point 5. When the mesh point 3 receives the measurement request message 1b, it checks the next hop point and the target address and forwards the measurement request message 1c to the mesh point 5.

In the example in which the stream identification number is defined, each mesh point has a choice of forwarding the message only on a specific stream identification number. When the target node mesh point 5 receives the measurement request messages 1c, 2b and 3b, it can be on paths 1, 2 and 3 to include its self-measurement and node mesh point 2, mesh point 3 and mesh point 4 The measurement report message is responded to. If the starting path is based on the multi-hop point measurement, the only purpose is to explore the path (this can be indicated by using the flag in the message request), then each node can transfer the measurement after adding the self-address instead of adding the required measurement. Report the packet. At the same time, these messages can also be used as probes to measure end-to-end delays on a particular path (eg, sampling the packet via time). The same concept can be applied to a centralized architecture example where a centralized point is required to report specific measurements for all points on all paths between a source and a target node. The measurement request message can specify each mesh point on a particular path, including the mesh point n, which must return its measurement results to the source mesh point.

The present invention includes several transmission mechanisms and options for reporting measurements. The concept that can be applied to the measurement report selection includes one or more measurements in the measurement request message requesting a single message. In this selection, each target mesh point can transmit its measurement report to the source mesh point. This contributes to a faster response measurement request message. However, it will increase the signal transmission expenditure.

Figure 5 shows an example of a communication system including multiple nodes in accordance with an embodiment of the present invention. Communication system 500 can be a mesh network that includes a plurality of mesh points having mesh point 1, mesh point 2, mesh point 3, and mesh point 4. The mesh point 1 can be regarded as the source node, the mesh point 2 and the mesh point 3 can be regarded as the intermediate nodes, and the mesh point 4 can be regarded as the final target node. As shown in Figure 5, the source node, mesh point 1 can transmit a measurement request message to mesh point 2 (step 505). When the mesh point 2 receives the measurement request message, the mesh point 2 can forward the measurement request message to the next hop point (ie, the mesh point 3) (step 510), and if the measurement result is not available, the measurement is established (step 515). And then return the measurement report message to mesh point 1 (step 520). When the mesh point 3 receives the measurement request message, the mesh point 3 can forward the measurement request message to the next hop point (ie, the mesh point 4) (step 525), and if the measurement result is not available, the measurement is established (step 530). ), and then the measurement report message is transmitted with the address of the mesh point 1 . The measurement report is then forwarded to the mesh point 2 of its final target mesh point 1 (step 540). When the final target node receives the measurement request message, if the measurement result is not available, the mesh point 4 can establish the measurement (step 545), and then transmit the measurement report message with the address of the mesh point 1. The measurement report is first received by mesh point 3 (step 550), which then forwards the measurement report to mesh point 2 (step 555), which in turn forwards it to its final target: mesh point 1 (step 560). Therefore, the node containing the final target, each mesh point of the mesh point 4 can transmit its self-measurement report message to the source mesh point, mesh point 1, without waiting for the response of the next hop network point.

The concept that can be applied to the measurement report selection includes making the measurement request message require measurement once, periodic measurement reports or threshold-based measurement reports. In this selection, there is a one-to-one correspondence between the measurement request message and the measurement report message. However, the measurement request message can be transmitted once to configure the measurement, and each mesh point will know when to respond to its self-measurement based on the measurement reporting criteria in the measurement request message. Thus, when measurements are established at steps 515, 530, and 545, the measurements are incorporated into the measurement report message (ie, the results are already available), or the measurements are performed and then incorporated into the measurement report message. Measuring the target mesh points in the path requires collecting measurement reports and combining them to form a comprehensive report. This approach minimizes signalling expenditures compared to the first option. However, this approach has disadvantages because it increases the delay at each node and the measurement report message must go back to the source node via the same path.

Figure 6 shows an example of a communication system 600 including multiple nodes in accordance with an embodiment of the present invention. Communication system 600 can be a mesh network that includes multiple mesh points having mesh point 1, mesh point 2, mesh point 3, and mesh point 4. The mesh point 1 can be regarded as the source node, the mesh point 2 and the mesh point 3 can be regarded as the intermediate nodes, and the mesh point 4 can be regarded as the final target node. As shown in Fig. 6, the mesh point 1 can transmit a measurement request message to the mesh point 2 (step 605). When the mesh point 2 receives the measurement request message, the mesh point 2 can forward the measurement request message to the mesh point 3 (step 610) and establish a measurement (step 615). When the mesh point 3 receives the measurement request message, the mesh point 3 can forward the measurement request message to the mesh point 4 (step 620) and establish a measurement (step 625). When the measurement request message is received at the target mesh point, mesh point 4, the target mesh point establishes the measurement (step 630) and returns a measurement report message containing its self-measurement (step 635). Returning to the source node, on the path of the mesh point 1, the intermediate mesh point, the mesh point 2 and the mesh point 3 carry (ie, combine) their self-measurement on the measurement report message, and return it to the Source mesh point, mesh point 1 (steps 640, 645, 650, 655).

The concept that can be applied to the measurement report selection includes having the mesh point return the measurement report message, or it can carry the report on other data, control or management frames. Each target is placed in the measurement request message together with its self-measurement before it is forwarded to the node where the next mesh point rises to the final target.

When the final target node receives the measurement request message, it transmits its own measurement plus all other node measurements in the measurement report message. Compared to Option 1, this method can reduce the signal transmission expenditure, and unlike Option 2, the measurement report message can be transmitted via a path different from the measurement request message. However, there are still some processing expenditures at the intermediate node.

Figure 7 shows an example of a communication system 700 including multiple nodes in accordance with one embodiment of the present invention. Communication system 700 can be a mesh network that includes a plurality of mesh points having mesh point 1, mesh point 2, mesh point 3, and mesh point 4. The mesh point 1 can be regarded as the source node, the mesh point 2 and the mesh point 3 can be regarded as the intermediate nodes, and the mesh point 4 can be regarded as the final target node. As shown in Fig. 7, the mesh point 1 can transmit a measurement request message to the mesh point 2 (step 705). When the mesh point 2 receives the measurement request message, the mesh point 2 can establish a measurement (step 710) and append the measurement result to the measurement request message that is forwarded to the mesh point 3 (step 720). Each intermediate node on the path has a mesh point 2, which can carry its measurements on the measurement request message until it reaches the final target, mesh point 4 (steps 710, 720, 725, 730, 735). Finally, the mesh point 4 can establish a measurement (step 740) and combine its measurements with all received measurements into a measurement report message, which is transmitted back to the source node via the intermediate node mesh point 2 and the mesh point 3. , mesh point 1 (steps 745, 750, 755 and 760).

Figure 8 shows a block diagram of a mesh point 800 configured to implement various embodiments of the present invention. As shown in Figure 8, the mesh point 800 can be configured as a wireless mesh point or a wiring mesh point. The mesh point 800 includes a processor 805, a receiver 810, a transmitter 815, and a measuring unit 820. The memory 825 and an antenna 830 can be stored. The processor 805, the receiver 810, the transmitter 815, the measurement unit 820, and the memory 825 can be incorporated into an integrated circuit.

In one embodiment, when the mesh point 800 is used in the system 500 of FIG. 5, the receiver 810 can receive measurement requirements (if the mesh point 800 is not the source mesh point that originally produced the measurement requirements, such as the fifth The mesh point 1) in the system 500 of the figure. In response to receiving the measurement request, the transmitter 815 forwards the measurement request to the next hop network point (if the mesh point is not the final target mesh point, such as the mesh point 4 in the system 500 of Figure 5), if the memory Measurement results are not available in body 825, and measurement unit 820 establishes the measurement. These measurements include, but are not limited to, channel loading, noise histogram, signal to noise ratio (SNR), receiver power indicator or the like. Measurement unit 820 or memory 825 can provide measurements to processor 805, which can generate a measurement report that is transmitted via transmitter 815 and antenna 830 to the source mesh point that originally produced the measurement requirements.

In another embodiment, when the mesh point 800 is used in the system 600 of FIG. 6, the receiver 810 can receive measurement requirements (if the mesh point 800 is not the source mesh point that originally produced the measurement requirements, such as Figure 6 shows the mesh point 1 in system 600. In response to receiving the measurement request, the transmitter 815 forwards the measurement request to the next hop network point (if the mesh point is not the final target mesh point, such as the mesh point 4 in the system 600 of Figure 6), if the memory The measurement result is not available in the body 825, and the measurement unit 820 establishes the measurement and stores the measurement result in the memory 825. However, in this embodiment, unless the mesh point 800 is the final target mesh point, it does not produce a measurement report (e.g., mesh point 4 in system 600 of Figure 6). Alternatively, the mesh point 800 is waiting to receive a measurement report from the next hop network point, and when the receiver 810 receives the measurement report, the processor 805 can combine the mesh points 800 stored in the memory 825. Measurement results and measurement results included in the measurement report. The processor 805 then generates a combined measurement report containing the combined measurement and transmits the combined measurement report via the transmitter 815 and the antenna 830 to a hop point mesh point that may or may not be the source mesh point. If the previous hop network point is not the source mesh point, the previous hop point will further combine the measurement result and the combined measurement result, and generate a new combined measurement report and the like until the source mesh point receives a multi-combination measurement report. .

In still another embodiment, when the mesh point 800 is used in the system 700 of FIG. 7, the receiver 810 can receive measurement requirements (if the mesh point 800 is not the source mesh point that originally produced the measurement requirements, such as The mesh point 1) in the system 700 of Figure 7. However, in this embodiment, the mesh point 800 does not immediately transfer the measurement request to the next hop mesh point to respond to the measurement request. Alternatively, if the measurement result is not available in the memory 825, the measurement unit 820 establishes the measurement, and the processor 805 combines the measurement result and the measurement result included in the measurement request, and generates a new one including the combined measurement result. Measurement requirements. The mesh point 800 forwards the measurement request including the combined measurement to the next hop network point (if the mesh point is not the final target mesh point, such as the mesh point 4 in system 700 of Figure 7). Once the final target mesh point receives the measurement requirement of the combined measurement result from the intermediate mesh point, the final target mesh point establishes a measurement and is generated to be transferred back to the source network via the intermediate mesh point without further processing. One of the points combines the measurement report.

The features and elements of the present invention are described in the preferred embodiments in the preferred embodiments, and the various features and elements are not required to be further Used separately.

Optional. . . optional

MP. . . Mesh point

The present invention can be understood in more detail from the following description of the preferred embodiments and the accompanying drawings, wherein: FIG. 1 is a signal flow diagram depicting a node-based measurement including the target unicast/next hop unicast; The diagram is a signal flow diagram depicting node-based measurements including the subject of unicast/next hop multicast/propagation; and Figure 3 is a signal flow diagram depicting multi-hop measurements along a single mesh path; Figure 4 is a signal flow diagram depicting multi-hop measurements along a multipath; and Figure 5 is a signal flow diagram depicting a mesh point report measurement transmitted to a source mesh point in accordance with an embodiment of the present invention. Figure 6 is a signal flow diagram showing a measurement report synthesized by each mesh point according to another embodiment of the present invention; and Figure 7 is a view showing a mesh point by a final target according to still another embodiment of the present invention; A signal flow diagram of the integrated measurement report; and FIG. 8 shows a block diagram of a mesh point block configured to implement various embodiments of the present invention.

Optional. . . optional

MP. . . Mesh point

Claims (12)

A method for transmitting a message in a wireless mesh network, the method comprising: receiving a message from a first wireless mesh point (WMP), the message including a source address of the first WMP, a second a target address of the WMP, a receiver address field including a first receiver address, a transmitter address field including a first transmitter address of the first WMP, and a next hop equal to the next hop a field of a value of a maximum number of addresses; by reducing the value of the maximum number equal to the address of the next hop address, by updating the message in the message having a second receiver address a receiver address field, and updating the message by updating the transmitter address field in the message having the first receiver address; and transmitting the updated message to the second WMP. The method of claim 1, wherein the message further comprises a target count field, the count field of the target comprising a number of objects included in the message. The method of claim 1, wherein the updated message is transmitted to at least one other intermediary node. The method of claim 1, wherein the target address is a media access control address. A method for forwarding a message in a wireless mesh network, the method comprising: Receiving, by an intermediate node, a message from a first wireless mesh point (WMP), the message including a source address of the first WMP, a target address of a second WMP, including a first receiver address a receiver address field, a transmitter address field containing a first transmitter address of the first WMP, and a field equal to a maximum number of the next hop address; Reducing a second receiver address by reducing the value equal to the maximum number of the next hop address, by updating the receiver address in the message having the second receiver address And updating the message by updating the transmitter address field in the message having the first receiver address; and forwarding the updated message to the second WMP. The method of claim 5, further comprising: transmitting the updated message to at least one other intermediary node. A wireless mesh point (WMP), the WMP comprising: a receiver configured to receive a message from a first WMP, the message comprising a source address of the first WMP, a target address of a second WMP a receiver address field including a first receiver address, a transmitter address field including a first transmitter address of the first WMP, and a maximum equal to the next hop address a field of a numeric value; a processor configured to update the receiver in the message having a second receiver address by reducing the value equal to the maximum number of the next hop address Address field and update with the first The transmitter address field in the message of the receiver address updates the message; and a transmitter is configured to transmit the updated message to the second WMP. For example, the mesh point of claim 7 of the patent scope, wherein the message further includes a target count field, and the count field of the target includes the number of a target included in the message. For example, the mesh point of claim 7 of the patent scope, wherein the transmitter is further configured to transmit the updated message to an intermediate node. For example, the mesh point of claim 7 of the patent scope, wherein the target address is a media access control address. A wireless mesh point (WMP), the WMP comprising: a receiver configured to receive a message from a first WMP, the message comprising a source address of the first WMP, a target address of a second WMP a receiver address field including a first receiver address, a transmitter address field including a first transmitter address of the first WMP, and a maximum equal to the next hop address a value of a number; a processor configured to reduce the value equal to the maximum number of the next hop address, by deciding a second receiver address, by updating the second receiver The receiver address field in the message of the address and updating the message by updating the transmitter address field in the message having the first receiver address; and a transmitter setting To forward the updated message to the second WMP. For example, the mesh point of claim 11 wherein the transmitter is further configured to transmit the updated message to at least one other intermediate node.