Communication method and communication device
By transmitting message frames containing A-PPDU support capability information between AP MLD and non-AP STA MLD, the A-PPDU transmission problem under asymmetric operating bandwidth is solved, and spectrum utilization and system throughput are improved.
Patent Information
- Application Number
- CN202180001464.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-05-18
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2041-05-18
AI Technical Summary
In the prior art, when the PPDU transmitted by AP MLD and non-AP STA MLD have asymmetric operating bandwidth, the mechanism to support A-PPDU transmission is lacking, resulting in low spectrum utilization.
By determining and sending a first message frame, the message frame contains information for identifying the support capabilities of transmission and/or reception of the polymer physical layer protocol data unit A-PPDU, implementing A-PPDU transmission between the AP MLD and non-AP STA MLD.
Improves spectrum utilization, supports low-latency transmission, and improves system throughput.
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Figure CN115643820B_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of wireless communications, and more specifically, to a communication method and a communication conversion device. Background Art
[0002] The current research scope of Wi-Fi technology includes: 320MHz bandwidth transmission, aggregation and coordination of multiple frequency bands, etc. It is expected to increase the rate and throughput by at least four times compared with the existing standards. Its main application scenarios are video transmission, AR (Augmented Reality), VR (Virtual Reality), etc.
[0003] Aggregation and coordination of multiple frequency bands means that devices can communicate simultaneously in the 2.4GHz, 5GHz and 6GHz frequency bands. For devices to communicate simultaneously in multiple frequency bands, a new MAC (Media Access Control) mechanism needs to be defined to manage it. In addition, it is also expected that the aggregation and coordination of multiple frequency bands can support low-latency transmission.
[0004] The maximum bandwidth currently supported by multi-band aggregation and system technology is 320MHz (160MHz+160MHz). In addition, 240MHz (160MHz+80MHz) and other bandwidths may also be supported.
[0005] In current technology, a station (STA) and an access point (AP) can be a multi-link device (MLD), that is, it supports the function of sending and / or receiving in multiple connections at the same time. Therefore, in current technology, there can be multiple connections between a STA and an AP, and research is being conducted on the communication between these two devices in multiple connections. Summary of the invention
[0006] Various aspects of the present disclosure will at least solve the above problems and / or disadvantages. Various embodiments of the present disclosure provide the following technical solutions:
[0007] According to an example embodiment of the present disclosure, a communication method is provided, comprising: determining a first message frame, wherein the first message frame includes information for identifying support capabilities for sending and / or receiving aggregate physical layer protocol data units A-PPDU; and sending the first message frame.
[0008] According to an example embodiment of the present disclosure, another communication method is provided, comprising: receiving a first message frame, wherein the first message frame includes information for identifying support capabilities for sending and / or receiving aggregate physical layer protocol data units A-PPDU; and performing communication operations based on the first message frame.
[0009] According to an example embodiment of the present disclosure, a communication device is provided, including: a processing module, configured to: determine a first message frame, wherein the first message frame includes information for identifying support capabilities for sending and / or receiving an aggregate physical layer protocol data unit A-PPDU; and a transceiver module, configured to: send the first message frame.
[0010] According to an example embodiment of the present disclosure, another communication device is provided, including: a transceiver module, configured to: receive a first message frame, wherein the first message frame includes information for identifying support capabilities for sending and / or receiving aggregate physical layer protocol data units A-PPDU; and a processing module, configured to: control the execution of communication operations based on the first message frame.
[0011] According to an exemplary embodiment of the present disclosure, an electronic device is provided. The electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method described above is implemented.
[0012] According to an exemplary embodiment of the present disclosure, a computer-readable storage medium is provided. A computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, the method described above is implemented.
[0013] The technical solution provided by the exemplary embodiments of the present disclosure can improve spectrum utilization. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The above and other features of the embodiments of the present disclosure will become more apparent by describing in detail example embodiments of the present disclosure with reference to the accompanying drawings, in which:
[0015] Figure 1 is an exemplary diagram illustrating a wireless communication scenario.
[0016] Figure 2 It is an exemplary diagram showing a communication scenario under multiple connections.
[0017] Figure 3 is a flowchart illustrating a communication method according to an embodiment.
[0018] Figure 4 is a flow chart illustrating another communication method according to an embodiment.
[0019] Figure 5is a block diagram showing a communication device according to an embodiment. DETAILED DESCRIPTION
[0020] The following description with reference to the accompanying drawings is provided to help fully understand the various embodiments of the present disclosure as defined by the attached claims and their equivalents. The various embodiments of the present disclosure include various specific details, but these specific details are considered to be exemplary only. In addition, for the sake of clarity and brevity, the description of well-known technologies, functions and configurations may be omitted.
[0021] The terms and words used in this disclosure are not limited to the written meanings, but are only used by the inventors to enable a clear and consistent understanding of the disclosure. Therefore, for those skilled in the art, the description of various embodiments of the present disclosure is provided only for the purpose of illustration, not for the purpose of limitation.
[0022] It should be understood that, unless the context clearly indicates otherwise, the singular forms "a", "an", "said" and "the" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the present disclosure refers to the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.
[0023] It will be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. Therefore, without departing from the teachings of the exemplary embodiments, the first element discussed below may be referred to as the second element.
[0024] It should be understood that when an element is referred to as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, "connected" or "coupled" as used herein may include wireless connections or wireless couplings. The term "and / or" or the expression "at least one of..." as used herein includes any and all combinations of one or more of the associated listed items.
[0025] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
[0026] Figure 1 is an exemplary diagram illustrating a wireless communication scenario. Figure 2 It is an exemplary diagram showing a communication scenario under multiple connections.
[0027] In a wireless LAN, a basic service set (BSS) can be composed of an access point (AP) device and one or more non-AP devices (or STA devices) that communicate with the AP device. A basic service set can be connected to a distribution system (DS) through its AP device, and then connected to another basic service set to form an extended service set (ESS).
[0028] AP devices are wireless switches used in wireless networks and are also the core of wireless networks. AP devices can be used as wireless base stations, mainly as bridges to connect wireless networks and wired networks. Using this type of AP device, wired and wireless networks can be integrated.
[0029] As an example, an AP device may include software applications and / or circuits to enable other types of nodes in a wireless network to communicate with the outside and inside of the wireless network through the AP. For example, an AP device may be a terminal device or a network device equipped with a Wi-Fi (Wireless Fidelity) chip.
[0030] As an example, the station (STA) device may include, but is not limited to: a cellular phone, a smart phone, a wearable device, a computer, a personal digital assistant (PDA), a personal communication system (PCS) device, a personal information manager (PIM), a personal navigation device (PND), a global positioning system, a multimedia device, an Internet of Things (IoT) device, etc.
[0031] Although in Figure 1 FIG. 1 shows an AP device communicating with three station (STA) devices (STA 1, STA 2, STA 3), but this is merely exemplary and the embodiments of the present disclosure are not limited thereto. For example, the AP device and the STA device may have any number and / or any type.
[0032] like Figure 2 As shown, in an exemplary embodiment of the present disclosure, an AP device and a station (STA) device may be a multi-link device (MLD), for example, may be represented as an AP MLD and a non-AP STA MLD, respectively. The AP MLD may represent an access point supporting a multi-link communication function, and the non-AP STA MLD may represent a station supporting a multi-link communication function. For example, there may be multiple connections at different frequencies between the AP MLD and the non-AP STA MLD. For example, the AP MLD may work under three connections, such as Figure 1As shown in the figure, AP1, AP2 and AP3, non-AP STA MLD can also work under three connections, such as Figure 1 STA1, STA2 and STA3 are shown. Figure 1 In the example, it is assumed that AP1 communicates with STA1 through the corresponding first connection Link 1. Similarly, AP2 and AP3 communicate with STA2 and STA3 through the second connection Link 2 and the third connection Link 3, respectively. Link 1 to Link 3 can be multiple connections at different frequencies, for example, connections at 2.4 GHz, 5 GHz, 6 GHz, etc., or several connections at 2.4 GHz, 5 GHz, 6 GHz with the same or different bandwidths. In addition, there can be multiple channels under each connection. It should be understood that Figure 2 The communication scenarios shown are only exemplary, and the present invention is not limited thereto. For example, an AP MLD may be connected to multiple non-AP STA MLDs, or in each connection, an AP may communicate with multiple other types of stations. The communication method and communication device provided according to the embodiments of the present disclosure may be applied to the communication between an AP MLD and a non-AP STA MLD, that is, may be applied to a multi-connection communication environment.
[0033] In actual applications, the maximum operating bandwidths that can be supported by the AP MLD and some of the non-AP STA MLDs associated with it are different. For example, the AP MLD may support a maximum operating bandwidth of 320MHz, while some non-AP STA MLDs associated with the AP MLD may only support a maximum operating bandwidth of 160MHz or 80MHz, or less. That is, the PPDU transmitted by the AP MLD and the non-AP STA MLD has an asymmetric operating bandwidth. In this case, in order to maximize the utilization of the capabilities of the AP MLD, an aggregated physical layer protocol data unit (A-PPDU, Aggregated PHY Protocol Data Unit) can be transmitted. However, in the prior art, there is a lack of a mechanism for supporting A-PPDU transmission when the PPDU transmitted by the AP MLD and the non-AP STA MLD have an asymmetric operating bandwidth.
[0034] Figure 3 is a flowchart illustrating a communication method according to an embodiment. Figure 3The communication method shown can be applied to the sender. According to an embodiment of the present disclosure, the sender may be a device supporting multi-connection communication, for example, an AP MLD or a non-APSTA MLD. In the case where the sender is an AP MLD, the corresponding receiver may be a plurality of non-AP STAMLDs; in the case where the sender is a plurality of non-AP STA MLDs, the receiver may be an AP MLD. However, the present disclosure is not limited thereto, for example, the sender and the receiver do not necessarily both have to be devices supporting multi-connection communication.
[0035] Reference Figure 3 In step 310, a first message frame may be determined, wherein the first message frame includes information for identifying a support capability for sending and / or receiving an A-PPDU (hereinafter referred to as “A-PPDU support capability information”).
[0036] In an embodiment of the present disclosure, when the sender is an AP MLD, the first message frame may be a frame determined by the AP MLD in a multi-link setup, such as a beacon frame, a probe response frame, an association response frame, or a re-association response frame, etc. In another embodiment of the present disclosure, when the sender is a non-AP STA MLD, the first message frame may be a frame determined by the non-AP STA MLD in a multi-link setup, such as a probe request frame, an association request frame, or a re-association request frame, etc. It will be understood that the frame types shown here are only exemplary, and the first message frame is not limited thereto, but may be any other type of data frame, management frame, or control frame.
[0037] In the embodiments of the present disclosure, there are many ways to determine the first message frame, for example, the first message frame can be generated according to at least one of the following conditions: channel status, network conditions, load conditions, hardware capabilities of the sending / receiving device, service type, and relevant protocol provisions; the embodiments of the present disclosure are not specifically limited to this. In the embodiments of the present disclosure, the first message frame can also be obtained from an external device, and the embodiments of the present disclosure are not specifically limited to this.
[0038] According to an embodiment of the present disclosure, an AP MLD or a non-AP STA MLD may identify its support capability for sending and receiving an A-PPDU, or identify its support capability for receiving or sending an A-PPDU during the initial association process (e.g., a multi-connection establishment process). For example, the support capability for receiving and / or sending an A-PPDU may be carried in the form of a capability information element. For example, the A-PPDU support capability information in the first message frame may be included in an extremely high throughput (EHT) PHY capability information element or an EHT MAC capability information element. However, the present disclosure is not limited to this, and other forms of capability information elements are also feasible.
[0039] In one embodiment, the A-PPDU support capability information may refer to the support capability of the sender for sending and receiving the A-PPDU. For example, the support capability of the sender for sending and receiving the A-PPDU may be identified by a subfield in the capability information element, as shown in Table 1 below.
[0040] Table 1.
[0041] A-PPDU Supported
[0042] As an example, when the sub-domain (A-PPDU Supported in Table 1) is set to a specific value, it can be identified that the sender supports the sending and receiving of A-PPDU; when the sub-domain (A-PPDU Supported in Table 1) is set to another specific value, it can be identified that the sender does not support the sending and receiving of A-PPDU. For example, but not limited to, A-PPDUSupported in Table 1 can have one bit, that is, the capability information value supporting the reception and sending of A-PPDU can be identified by one bit.
[0043] In another embodiment, the A-PPDU support capability information may refer to the support capability for receiving or sending the A-PPDU. For example, the support capability of the sender for sending or receiving the A-PPDU may be identified by two subfields in the capability information element, as shown in Table 2 below.
[0044] Table 2.
[0045] A-PPDU Tx Supported A-PPDU Rx Supported
[0046] Specifically, one sub-domain (A-PPDU Tx Supported in Table 2) can identify the sender's support capability for sending A-PPDU, and another sub-domain (A-PPDU Rx Supported in Table 2) can identify the sender's support capability for receiving A-PPDU. When the sub-domain A-PPDU Tx Supported is set to a specific value, it can be identified that the sender supports the sending of A-PPDU; when the sub-domain is set to another specific value or is omitted, it can be identified that the sender does not support the sending of A-PPDU. When another sub-domain (A-PPDU Rx Supported in Table 2) is set to a specific value, it can be identified that the sender supports the reception of A-PPDU; when the sub-domain is set to another specific value or is omitted, it can be identified that the sender does not support the reception of A-PPDU. For example, but not limited to, A-PPDU Tx Supported and A-PPDU Rx Supported in Table 2 can each have one bit, that is, the capability information value supporting the reception or sending of A-PPDU can be identified by two bits.
[0047] According to an embodiment of the present disclosure, an AP MLD or a non-AP STA MLD may identify its capability information value supporting sending and receiving A-PPDU during the initial association process, or identify its capability information value supporting receiving or sending A-PPDU. Specifically, the capability information value may be included in an EHT PHY capability information element or an EHT MAC capability information element, and may be identified using one bit or two bits. In another embodiment of the present disclosure, the A-PPDU support capability information may be included in a multi-link (ML) information element, specifically in the common information (common Info) field of the ML information element.
[0048] Continue to refer to Figure 3 In step 320, a first message frame may be sent. For example, the first message frame may be sent to the receiving party through any connection of multiple connections, so that the receiving party may obtain information about the supporting capability of the sending party for A-PPDU.
[0049] In addition, the sender may also receive another message frame from the receiver, which may carry information about the receiver's support capabilities for A-PPDU (as shown in Tables 1 and 2 above), so that the sender may also obtain information about the receiver's support capabilities for A-PPDU.
[0050] When the sender and the receiver know the A-PPDU support capability information of the other party, effective A-PPDU transmission can be performed.
[0051] The following describes a case where both the sender and the receiver can support the sending and receiving of A-PPDU. According to an embodiment of the present disclosure, when transmitting an A-PPDU, the bandwidth (BW) of the downlink (DL) A-PPDU and the BW of the uplink (UL) A-PPDU can be identified. In an embodiment of the present disclosure, the identification method of the bandwidth can be determined according to the type of device that performs the transmission of DL A-PPDU and UL A-PPDU.
[0052] In one embodiment, the sender may be an access point, which may send a downlink PPDU to at least two sites respectively. According to this embodiment, when a DL A-PPDU is transmitted and the DL A-PPDU includes at least two downlink PPDUs, the bandwidth of the DL A-PPDU may be identified as the maximum working bandwidth covered by all at least two downlink PPDUs. In this case, the device that sends the DL A-PPDU (e.g., an access point) and the device that receives at least two downlink PPDUs (e.g., at least two sites) are both devices that support extremely high throughput communication. That is, only EHT devices are included in the transmission of the DL A-PPDU.
[0053] For example, assuming that the AP MLD can support a maximum working bandwidth of 320 MHz, while some non-AP STA MLDs associated with the AP MLD only support a maximum working bandwidth of 160 MHz or 80 MHz. During downlink transmission, for example but not limited to, the DL A-PPDU can be composed of three downlink PPDUs, two of which have a working bandwidth of 80 MHz and the other has a working bandwidth of 160 MHz, then the DL A-PPDU can be set to the maximum working bandwidth of 320 MHz covered by the three downlink PPDUs.
[0054] According to another embodiment of the present disclosure, in the case of a DL A-PPDU and the DL A-PPDU includes at least two downlink PPDUs, the bandwidths of the at least two downlink PPDUs may be identified separately. In this case, there is a site that supports high-efficiency (HE) communication among the sites that receive the at least two downlink PPDUs. However, the present disclosure is not limited thereto. For example, in the case where the bandwidth of the DL A-PPDU is identified separately, the device that sends the DL A-PPDU (e.g., an access point) and the device that receives at least two downlink PPDUs (e.g., at least two sites) are both devices that support extremely high throughput communication. For example, but not limited to, the DL A-PPDU may consist of three downlink PPDUs, wherein the working bandwidths of two downlink PPDUs are 80 MHz and the other is 160 MHz, and then three working bandwidths, i.e., 80 MHz, 80 MHz, and 160 MHz, may be identified in the DL A-PPDU signaling domain.
[0055] In an embodiment of the present disclosure, the bandwidth of the DL A-PPDU may be identified in a signaling field (eg, U-SIG or SIG-A) of the PPDU to be transmitted.
[0056] In another embodiment of the present disclosure, the sender may be at least two sites, each of which may send an uplink PPDU to an access point. According to this embodiment, when a UL A-PPDU is transmitted and the UL A-PPDU includes at least two uplink PPDUs, the bandwidths of the at least two uplink PPDUs are identified respectively. Since multiple sites may transmit PPDUs to an access point respectively in uplink transmission, each site may identify the bandwidth of its own PPDU to be transmitted. In this case, there may be a site supporting high-efficiency (HE) communication among the sites that send at least two uplink PPDUs. However, the present disclosure is not limited thereto. For example, when the bandwidths of the UL A-PPDUs are identified separately, both the device that sends at least two uplink PPDUs (e.g., at least two sites) and the device that receives the UL A-PPDU (e.g., an access point) may be a device that supports extremely high throughput communication.
[0057] In an embodiment of the present disclosure, the bandwidth of the UL A-PPDU may be identified in a signaling field (eg, U-SIG or SIG-A) of the PPDU to be transmitted.
[0058] According to an embodiment of the present disclosure, if only EHT devices are included in the transmission of an A-PPDU, the BW of the A-PPDU can be set to the maximum working bandwidth covered by the A-PPDU in the DL case. For example, but not limited to, the A-PPDU consists of 3 PPDUs, two of which have a working bandwidth of 80 MHz and the other of 160 MHz, then it is set to 320 MHz. However, the present disclosure is not limited to this. For example, three different BW identifiers can also be set separately; for the UL case, the bandwidth of each PPDU can be set separately; if HE STA is included in the transmission of the A-PPDU, the bandwidth of each PPDU can be set separately for the DL case and the UL case.
[0059] According to an embodiment of the present disclosure, the capability of a device (eg, AP) can be utilized to the maximum extent while improving the throughput of the system by identifying the corresponding bandwidth in the transmission of DL A-PPDU and UL A-PPDU.
[0060] Figure 4 is a flow chart illustrating another communication method according to an embodiment. Figure 4The communication method shown can be applied to the receiving party. According to an embodiment of the present disclosure, the receiving party may be a device supporting multi-connection communication, for example, a non-AP STA MLD or an AP MLD. The receiving party may be a plurality of non-AP STA MLDs, in which case the corresponding sending party is an AP MLD; the receiving party may be an AP MLD, in which case the sending party is a plurality of non-AP STA MLDs. However, the present disclosure is not limited thereto, for example, the receiving party and the sending party do not necessarily both have to be devices supporting multi-connection communication.
[0061] Reference Figure 4 In step 410, a first message frame is received, wherein the first message frame may include information for identifying support capabilities for sending and / or receiving an A-PPDU. That is, the receiver may obtain the sender's support capabilities for transmission of an A-PPDU (that is, transmission of an A-PPDU may refer to sending and / or receiving an A-PPDU) from the first message frame. The A-PPDU support capability information in the first message frame may be included in an EHT PHY capability information element or an EHT MAC capability information element. In addition, as shown in Tables 1 and 2, the A-PPDU support capability information may be identified using one or two subfields. An embodiment of the A-PPDU support capability information may be similar to the embodiments described with reference to Tables 1 and 2, and for the sake of brevity, repeated descriptions are omitted herein.
[0062] In step 420, a communication operation is performed based on the first message frame. For example, the receiving party may obtain the A-PPDU support capability information sent from the first message frame from the sending party. If the A-PPDU support capability information in the first message frame indicates that the sending and receiving of the A-PPDU are supported, the A-PPDU can be transmitted in subsequent data interactions. In addition, the receiving party may also send another message frame to the sending party, which may carry information about the receiving party's support capability for the A-PPDU (as shown in Tables 1 and 2 above), so that the sending party can obtain information about the receiving party's support capability for the A-PPDU.
[0063] In the case where both the receiver and the transmitter can support A-PPDU, when the A-PPDU is transmitted, the BW for transmitting the DLA-PPDU and the BW for transmitting the UL A-PPDU can be identified. In an embodiment of the present disclosure, the identification method of the bandwidth can be determined according to the type of device that performs the transmission of the DLA-PPDU and the UL A-PPDU.
[0064] In one embodiment of the present disclosure, the receiving party may be at least two stations, which respectively receive downlink PPDUs from the access point. According to this embodiment, for example, when the DL A-PPDU is transmitted and the DL A-PPDU includes at least two downlink PPDUs, the bandwidth of the DL A-PPDU is identified as the maximum working bandwidth covered by all at least two downlink PPDUs. In this case, the device sending the DL A-PPDU and the device receiving the at least two downlink PPDUs are both devices supporting EHT communication.
[0065] According to another embodiment, when a DL A-PPDU is transmitted and the DL A-PPDU includes at least two downlink PPDUs, the bandwidths of the at least two downlink PPDUs may be identified respectively. In this case, a station supporting HE communication (ie, HE STA) may exist among the stations receiving the at least two downlink PPDUs. However, the present disclosure is not limited thereto, for example, both the device sending the DL A-PPDU and the device receiving the at least two downlink PPDUs may be devices supporting EHT communication.
[0066] In an embodiment of the present disclosure, the bandwidth of the DL A-PPDU may be identified in a signaling field (eg, U-SIG or SIG-A) of the PPDU to be transmitted.
[0067] In one embodiment of the present disclosure, the receiving party may be an access point that receives an uplink PPDU from at least two sites. According to this embodiment, when a UL A-PPDU is transmitted and the UL A-PPDU includes at least two uplink PPDUs, the bandwidths of the at least two uplink PPDUs are respectively identified. In this case, there may be a site supporting HE communication among the sites that send at least two uplink PPDUs. However, the present disclosure is not limited thereto, and for example, both the device receiving the at least two uplink PPDUs and the device sending the UL A-PPDU may be devices supporting EHT communication.
[0068] The method for identifying the bandwidth of DL A-PPDU and UL A-PPDU may be similar to that described above. Figure 3 The embodiments described herein are omitted to avoid redundancy.
[0069] The communication method according to the embodiment of the present disclosure enables a device to receive an aggregated PPDU, maximizes the use of the capabilities of the device (AP), and indirectly improves the throughput of the system.
[0070] Figure 5 is a block diagram showing a communication device 500 according to an embodiment. Figure 5The communication device 500 shown can be applied to a sender or a receiver. According to an embodiment of the present disclosure, the sender can be a device supporting multi-connection communication, for example, an AP MLD or a non-AP STA MLD, and the receiver can be a plurality of non-AP STA MLDs or AP MLDs. However, the present disclosure is not limited thereto. For example, the sender and the receiver do not necessarily both need to be devices supporting multi-connection communication, that is, Figure 5 The communication method shown can also be applied to devices supporting single connection communication.
[0071] exist Figure 5 In the case where the communication device 500 shown is applied to a sender, the processing module 510 may be configured to determine a first message frame, wherein the first message frame includes information for identifying a support capability for sending and / or receiving an A-PPDU; and the transceiver module 520 may be configured to send the first message frame. That is, in this case, the communication device 500 may perform the following steps: Figure 3 The communication method described herein, and the first message frame and the information included in the first message frame may be similar to the reference Figure 3 For the sake of brevity, the repeated description of the embodiments described in step 310 and Table 1 and Table 2 is omitted here.
[0072] exist Figure 5 In the case where the communication device 500 shown is applied to a receiving party, the transceiver module 520 may be configured to receive a first message frame, wherein the first message frame includes information for identifying the support capability for sending and / or receiving A-PPDU; the processing module 510 may be configured to control the execution of the communication operation based on the first message frame. That is, in this case, the communication device 500 may execute the reference Figure 4 For the sake of brevity, repeated descriptions of the communication method described are omitted here.
[0073] also, Figure 5 The communication device 500 shown is only exemplary, and the embodiments of the present disclosure are not limited thereto. For example, the communication device 500 may further include other modules, such as a memory module, etc. In addition, the modules in the communication device 500 may be combined into a more complex module, or may be divided into more separate modules.
[0074] The communication method and the communication apparatus according to the embodiments of the present disclosure enable a device to receive an aggregated PPDU, maximize the use of the capabilities of the device (AP), and improve the throughput of the system.
[0075] Based on the same principle as the method provided by the embodiment of the present disclosure, the embodiment of the present disclosure also provides an electronic device, which includes a processor and a memory; wherein the memory stores machine-readable instructions (also referred to as "computer programs"); the processor is used to execute the machine-readable instructions to implement reference Figure 3 and Figure 4 Describe the method.
[0076] The embodiment of the present disclosure also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the reference Figure 3 and Figure 4 Describe the method.
[0077] In an example embodiment, the processor may be a device for implementing or executing various exemplary logic blocks, modules, and circuits described in conjunction with the present disclosure, such as a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The processor may also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
[0078] In an example embodiment, the memory may be, for example, ROM (Read Only Memory), RAM (Random Access Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store program code in the form of instructions or data structures and can be accessed by a computer, but is not limited to these.
[0079] It should be understood that, although the steps in the flowchart of the accompanying drawings are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. In addition, at least a portion of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
[0080] Although the present disclosure has been shown and described with reference to certain embodiments of the present disclosure, it will be appreciated by those skilled in the art that various changes may be made in form and detail without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the embodiments, but should be limited by the appended claims and their equivalents.
Claims
1. A communication method, comprising: Determining a first message frame, wherein the first message frame includes information for identifying a support capability for sending and / or receiving an aggregate physical layer protocol data unit A-PPDU; sending the first message frame, Wherein, the communication method further includes: In the case of transmitting at least two downlink DL A-PPDUs or transmitting at least two uplink UL A-PPDUs, a bandwidth identification method of the DL A-PPDU or UL A-PPDU is determined according to a device type that performs transmission of the at least two DL A-PPDUs or the at least two UL A-PPDUs.
2. The communication method according to claim 1, wherein: The information is included in a very high throughput PHY capability information element or a very high throughput MAC capability information element.
3. The communication method according to claim 1, wherein: The communication method further comprises: In case that a downlink DL A-PPDU is transmitted and the DL A-PPDU includes at least two downlink PPDUs, the bandwidth of the DL A-PPDU is identified as the maximum operating bandwidth covered by all of the at least two downlink PPDUs.
4. The communication method according to claim 3, wherein: Both the device sending the DL A-PPDU and the device receiving the at least two downlink PPDUs are devices supporting extremely high throughput communication.
5. The communication method according to claim 1, wherein: The communication method further comprises: In the case of transmitting a downlink DL A-PPDU and the DL A-PPDU includes at least two downlink PPDUs, bandwidths of the at least two downlink PPDUs are respectively identified.
6. The communication method according to claim 5, wherein: Among the stations receiving the at least two downlink PPDUs, there is a station supporting efficient communication.
7. The communication method according to any one of claims 1 to 5, wherein: The communication method further comprises: In the case of transmitting an uplink UL A-PPDU and the UL A-PPDU including at least two uplink PPDUs, bandwidths of the at least two uplink PPDUs are respectively identified.
8. A communication method, comprising: Receiving a first message frame, wherein the first message frame includes information for identifying a support capability for sending and / or receiving an aggregate physical layer protocol data unit A-PPDU; performing a communication operation based on the first message frame, Wherein, the communication method further includes: In case of transmitting a downlink DL A-PPDU or transmitting an uplink UL A-PPDU, a bandwidth identification method of the DL A-PPDU or UL A-PPDU is determined according to a type of device performing transmission of the DL A-PPDU or UL A-PPDU.
9. The communication method according to claim 8, wherein: The information is included in a very high throughput PHY capability information element or a very high throughput MAC capability information element.
10. The communication method according to claim 8, wherein: The communication method further comprises: In case that a downlink DL A-PPDU is transmitted and the DL A-PPDU includes at least two downlink PPDUs, the bandwidth of the DL A-PPDU is identified as the maximum operating bandwidth covered by all of the at least two downlink PPDUs.
11. The communication method according to claim 10, wherein: Both the device sending the DL A-PPDU and the device receiving the at least two downlink PPDUs are devices supporting extremely high throughput communication.
12. The communication method according to claim 8, wherein: The communication method further comprises: In the case of transmitting a downlink DL A-PPDU and the DL A-PPDU includes at least two downlink PPDUs, bandwidths of the at least two downlink PPDUs are respectively identified.
13. The communication method according to claim 12, wherein: Among the stations receiving the at least two downlink PPDUs, there is a station supporting efficient communication.
14. The communication method according to any one of claims 8 to 13, wherein: The communication method further comprises: In the case of transmitting an uplink UL A-PPDU and the UL A-PPDU including at least two uplink PPDUs, bandwidths of the at least two uplink PPDUs are respectively identified.
15. A communication device, comprising: The processing module is configured to: determine a first message frame, wherein the first message frame includes information for identifying a support capability for sending and / or receiving an aggregate physical layer protocol data unit A-PPDU; The transceiver module is configured to: send the first message frame, The processing module is further configured to: when transmitting a downlink DL A-PPDU or an uplink UL A-PPDU, determine a bandwidth identification method of the DL A-PPDU or the ULA-PPDU according to a device type that performs transmission of the DL A-PPDU or the UL A-PPDU.
16. A communication device, comprising: The transceiver module is configured to: receive a first message frame, wherein the first message frame includes information for identifying a support capability for sending and / or receiving an aggregate physical layer protocol data unit A-PPDU; a processing module, configured to: control execution of a communication operation based on the first message frame, The processing module is further configured to: when transmitting a downlink DL A-PPDU or an uplink UL A-PPDU, determine a bandwidth identification method of the DL A-PPDU or the ULA-PPDU according to a device type that performs transmission of the DL A-PPDU or the UL A-PPDU.
17. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method according to any one of claims 1 to 7 or any one of claims 8 to 14 is implemented.
18. A computer-readable storage medium, wherein: The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the method of any one of claims 1 to 7 or any one of claims 8 to 14.
Citation Information
Patent Citations
Station and wireless link configuration method therefor
CN105981310A