CN106937382B

CN106937382B - Signaling message transmission method and device

Info

Publication number: CN106937382B
Application number: CN201511019316.6A
Authority: CN
Inventors: 苏宏家; 朱俊; 林英沛; 范巍巍
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2020-05-08
Anticipated expiration: 2035-12-29
Also published as: CN106937382A

Abstract

The embodiment of the invention discloses a method and a device for transmitting signaling messages, wherein the method can comprise the following steps: a first Station (STA) receives a trigger frame which is sent by an AP and used for triggering uplink transmission, wherein the trigger frame further indicates an available channel of a first BSS, the first station and the AP both belong to the first BSS, and the first station is a Non-AP STA; the first station transmits an uplink data frame on an available channel of the first BSS, wherein a physical layer preamble in the uplink data frame contains a signaling message, the signaling message contains an efficient signaling a, and the efficient signaling a contains channel information, and when the channel information is received by a second station in a second BSS, the channel information is used for the second station to determine a non-overlapping part of the available channel of the second BSS and the available channel of the first BSS. The embodiment of the invention can improve the transmission efficiency in the WLAN.

Description

Signaling message transmission method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a signaling message transmission method and apparatus.

Background

A Wireless Local Area Network (WLAN) may include one or more Basic Service Sets (BSSs), and each BSS may include one or more Network nodes, where a Network node may include an Access Point (AP) and a Non-Access Point (Non-AP STA).

In the current WLAN, when an AP triggers at least one Non-AP STA to perform uplink transmission (may be uplink multi-user transmission or uplink single-user transmission) on an available channel indicated by the AP, the Non-AP STA may send an uplink data frame on the available channel, where a physical layer preamble in the uplink data frame includes a signaling message, where the signaling message includes a High efficiency signaling a (HE-SIG-a), and the HE-SIG-a includes a BSS available channel (BSS BW), and the BSS BW is used to indicate an available BSS channel Bandwidth.

However, in practical applications, there may be coverage overlap between two APs, and there may be overlapping portions of available channels in the BSS to which the two APs belong. For example: the third and fourth channels (channel bandwidth is 20MHz) of the available channel (available channel bandwidth is 80MHz) of BSS1 to which the AP1 belongs coincide with the first and second channels (channel bandwidth is 20MHz) of the available channel (available channel bandwidth is 80MHz) of BSS2 to which the AP2 belongs. Thus, when Non-AP STA1 in BSS1 uses the third (or fourth) channel to transmit data, Non-AP STA2 in BSS2 can only receive the data frame transmitted by Non-AP STA1 and know the available channel bandwidth of BSS1 from it, but cannot determine which of the available channels of BSS1 do not coincide with the channels of BSS 2. This interferes with transmissions between Non-AP STAs within BSS1 and AP1 when Non-AP STA2 uses the second (or first) channel of the available channels of BSS2, thereby reducing transmission efficiency.

It can be seen that the current WLAN has a problem of low transmission efficiency.

Disclosure of Invention

The embodiment of the invention provides a signaling message transmission method and a signaling message transmission device, which can improve the transmission efficiency in a WLAN.

In a first aspect, an embodiment of the present invention provides a signaling message transmission method, including:

a first station receives a trigger frame sent by an AP and used for triggering uplink transmission, wherein the trigger frame further indicates an available channel of a first BSS, the first station and the AP both belong to the first BSS, and the first station is a Non-APSTA;

the first station transmits an uplink data frame on an available channel of the first BSS, wherein a physical layer preamble in the uplink data frame contains a signaling message, the signaling message contains an efficient signaling a, and the efficient signaling a contains channel information, and when the channel information is received by a second station in a second BSS, the channel information is used for the second station to determine a non-overlapping part of the available channel of the second BSS and the available channel of the first BSS.

In this implementation, it may be implemented that the uplink data frame is included in an available channel of the first BSS, and the efficient signaling a field in the physical layer preamble of the uplink data frame includes channel information. Therefore, the STA in the second BSS can determine the non-overlapping part of the available channel of the second BSS and the available channel of the first BSS according to the received channel information contained in the high-efficiency signaling a field in the physical layer preamble of the uplink data frame. Therefore, the STA in the second BSS can use the non-overlapped part for transmission, and avoid using the overlapped part for transmission, so that the transmission in the first BSS cannot be influenced, and the transmission efficiency in the WLAN can be improved.

In a first possible implementation manner of the first aspect, the channel information may include channel number information of at least one of available channels of the first BSS and a bandwidth of the available channel of the first BSS, where the bandwidth of each channel included in the available channels of the first BSS is the same.

In this implementation, it may be implemented that the STA in the second BSS determines a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS according to the channel number information of at least one of the available channels of the first BSS and the bandwidth of the available channel of the first BSS.

With reference to the first aspect, in a second possible implementation manner of the first aspect, the available channels of the first BSS include at least one channel, and each channel included in the available channels of the first BSS has the same bandwidth;

the channel information is used to indicate a bandwidth of a channel used by the first station in available channels of the first BSS and is also used to indicate a location of the channel used by the first station in the available channels of the first BSS.

In this implementation, the above-mentioned bandwidth of the channel used by the first station in the available channel of the first BSS and the location of the channel used by the first device in the available channel of the first BSS may be implemented to enable the STA in the second BSS to determine the non-overlapping part of the available channel of the second BSS and the available channel of the first BSS.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the channel information may indicate, in a bitmap manner, a bandwidth of a channel used by the first station in an available channel of the first BSS, and indicate a position of the channel used by the first station in the available channel of the first BSS; or

The channel information may include an ordinate value and an abscissa value of a preset channel division table, where the preset channel division table includes a plurality of channel combination patterns, and each channel combination pattern is used to represent a bandwidth of a channel and a position of the channel, where a channel combination pattern corresponding to a coordinate set including the ordinate value and the abscissa value represents a bandwidth of a channel used by the first station in available channels of the first BSS and represents a position of the channel used by the first station in the available channels of the first BSS; or

The channel information may include a table index of a preset channel location mapping table, where the preset channel location mapping table includes a plurality of table entries and a table index of each table entry, where one table entry in the plurality of table entries indicates a bandwidth of a channel used by the first station in an available channel of the first BSS, and indicates a location of the channel used by the first station in the available channel of the first BSS; or

The channel information may include first indication information indicating a bandwidth of a channel used by the first station in available channels of the first BSS, and second indication information indicating a location of the channel indicated by the first indication information in the available channels of the first BSS.

With reference to the first aspect, or the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, or the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the step of the first station sending the uplink data frame on the available channel of the first BSS may include:

the first station sends the efficient signaling a on each of the available channels of the first BSS.

In this implementation, the first station may send the efficient signaling a on each channel included in the available channels of the first BSS, so that the STA in the second BSS using different channels may receive the signaling message, thereby improving the implementation efficiency of the present technical solution.

In a second aspect, an embodiment of the present invention provides a signaling message transmission method, including:

a second station receives an uplink data frame sent by a first station in a first BSS on an available channel of the first BSS, wherein the second station belongs to the second BSS, the first station is a Non-AP STA, a physical layer preamble in the uplink data frame contains a signaling message, the signaling message contains an efficient signaling A, the efficient signaling A comprises channel information, and the channel information is used for the second station to judge a Non-coincident part of the available channel of the second BSS and the available channel of the first BSS;

and the second station judges the non-coincidence part of the available channel of the second BSS and the available channel of the first BSS by using the channel information.

In this implementation, the second station receives the uplink data frame, and thus determines a non-overlapping portion between the available channel of the second BSS and the available channel of the first BSS by using the uplink data frame including the channel information in the high-efficiency signaling a. Therefore, the second station can use the non-overlapped part for transmission, and avoids using the overlapped part for transmission, so that the transmission in the first BSS cannot be influenced, and the transmission efficiency in the WLAN can be improved.

In a first possible implementation manner of the second aspect, the channel information includes channel number information of at least one of available channels of the first BSS and a bandwidth of the available channel of the first BSS, wherein the bandwidth of each of the available channels of the first BSS is the same;

the step of the second station determining a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS using the channel information may include:

the second station judges a channel of which the channel number information in the available channel of the second BSS is different from the channel number information in the available channel of the first BSS by using the channel number information of the at least one channel included in the channel information and the bandwidth of the available channel of the first BSS, and uses the channel of which the channel number information in the available channel of the second BSS is different from the channel number information in the available channel of the first BSS as a non-overlapping part of the available channel of the second BSS and the available channel of the first BSS.

With reference to the second aspect, in a second possible implementation manner of the second aspect, the available channels include at least one channel, and each of the available channels includes the same bandwidth;

the channel information may be used to indicate a bandwidth of a channel used by the first station in available channels of the first BSS and also to indicate a location of the channel used by the first station in the available channels of the first BSS;

and the second station judges the non-coincidence part of the available channel of the second BSS and the available channel of the first BSS by using the bandwidth of the channel used by the first station in the available channel of the first BSS and the position of the channel used by the first station in the available channel of the first BSS.

In this implementation, it may be implemented that a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS is determined by the bandwidth of the channel used by the first station in the available channel of the first BSS and the location of the channel used by the first station in the available channel of the first BSS.

With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the channel information may indicate, in a bitmap manner, a bandwidth of a channel used by the first station in available channels of the first BSS and a position of the channel used by the first station in the available channels of the first BSS; or

In a third aspect, an embodiment of the present invention provides a signaling message transmission apparatus, where the apparatus is applied to a first station, and the apparatus is configured to implement the functions of the method provided in the first aspect, and is implemented by hardware/software, where the hardware/software includes units corresponding to the functions.

In a fourth aspect, an embodiment of the present invention provides a signaling message transmission apparatus, which is applied to a second station in a second BSS, and is configured to implement the functions of the method provided in the second aspect, where the apparatus is implemented by hardware/software, and the hardware/software includes units corresponding to the functions.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of an applicable scenario provided by an embodiment of the present invention;

fig. 2 is a flowchart illustrating a signaling message transmission method according to an embodiment of the present invention;

FIG. 3 is a diagram illustrating another scenario provided by an embodiment of the present invention;

fig. 4 is a schematic diagram of a channel bandwidth provided by an embodiment of the present invention;

fig. 5 is a flowchart illustrating another signaling message transmission method according to an embodiment of the present invention;

fig. 6 is a schematic diagram of signaling message transmission provided in an embodiment of the present invention;

fig. 7 is a schematic diagram of channel number information according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an efficient signaling a according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another efficient signaling a provided by the embodiment of the present invention;

fig. 10 is a schematic structural diagram of another efficient signaling a provided by the embodiment of the present invention;

fig. 11 is a schematic diagram of a channel division table according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of another efficient signaling a provided by the embodiment of the present invention;

fig. 13 is a diagram illustrating a channel location information table according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a signaling message transmission apparatus according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of another signaling message transmission apparatus according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of another signaling message transmission apparatus according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of another signaling message transmission apparatus according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Embodiments of the present invention may be applied to a WLAN that may use a standard such as the IEEE (institute of Electrical and Electronics Engineers, Chinese) 802.11 family. The WLAN may include one or more BSSs, and the network node in each BSS is a Station (STA), and as shown in fig. 1, stations in one BSS may include an AP and a Non-AP STA. Each BSS may contain an AP and a plurality of Non-AP STAs (a Non-AP STA may be referred to simply as a STA) associated with the AP.

The AP is also referred to as a wireless access point or a hotspot. The AP is an access point for a wireless user to enter a wired network, and may be deployed in a home, a building, or a campus, typically with a coverage radius of several tens of meters to hundreds of meters, or may be deployed outdoors. In addition, the AP acts as a bridge connecting a network and a wireless network, and mainly functions to connect wireless network clients together and then access the wireless network to the ethernet. Specifically, the AP may be a terminal device or a network device with a Wi-Fi (Wireless Fidelity, chinese) chip. Optionally, the AP may be a device supporting 802.11ax standard, and further optionally, the AP may be a device supporting multiple WLAN standards such as 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11 a.

The Non-AP STA can be a wireless communication chip, a wireless sensor or a wireless communication terminal. For example: the mobile phone supporting the Wi-Fi communication function, the tablet personal computer supporting the Wi-Fi communication function, the set top box supporting the Wi-Fi communication function, the smart television supporting the Wi-Fi communication function, the smart wearable device supporting the Wi-Fi communication function, the vehicle-mounted communication device supporting the Wi-Fi communication function, the computer supporting the Wi-Fi communication function and the like. Optionally, the station may support an 802.11ax system, and further optionally, the station supports multiple WLAN systems such as 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11 a.

In addition, the embodiment of the present invention may be applied to an Orthogonal Frequency Division Multiple Access (OFDMA) technical scenario, a Multi-User Multiple-Input Multiple-Output (MU-MIMO) mode scenario, and a scenario in which an OFDMA mode is combined with a MU MIMO mode scenario in a WLAN.

In addition, in the embodiment of the present invention, because the Non-AP STA in the first BSS transmits the uplink data frame on the available channel of the first BSS, the physical layer preamble in the uplink data frame includes a signaling message, where the signaling message includes an efficient signaling a, where the efficient signaling a includes channel information, and when the channel information is monitored by the STA in the second BSS, the channel information is used for the STA in the second BSS to determine a Non-overlapping portion between the available channel of the second BSS and the available channel of the first BSS. Therefore, the STA in the second BSS can use the channel information to judge the non-coincidence part of the available channel of the second BSS and the available channel of the first BSS, so that the non-coincidence part is used for transmission, the coincidence part is avoided, the transmission in the first BSS cannot be influenced, and the transmission efficiency in the WLAN can be improved.

In addition, in the embodiment of the present invention, for convenience of description, a Non-AP STA in a first BSS is referred to as a first station, and the first station may be any Non-AP STA in the first BSS; both the Non-AP STA and the AP within the second BSS are referred to as a second station, which may be any Non-AP STA or AP within the second BSS.

Referring to fig. 2, fig. 2 is a flowchart illustrating a signaling message transmission method according to an embodiment of the present invention, as shown in fig. 2, including the following steps:

201. the method comprises the steps that a first station receives a trigger frame which is sent by an AP and used for triggering uplink transmission, wherein the trigger frame further indicates an available channel of a first BSS, the first station and the AP belong to the first BSS, and the first station is a Non-AP STA.

In this embodiment, the Trigger frame (Trigger) may also be carried in a downlink Physical Layer protocol data Unit (PPDU). The trigger frame may be that the AP simultaneously transmits to multiple Non-AP STAs in the first BSS, and the multiple Non-AP STAs may also be multiple station groups, where the multiple station groups may refer to station groups in the MU-MIMO mode. For example: the AP simultaneously sends a downlink PPDU to a plurality of Non-AP STAs, and specifically, the PPDU sent by the AP may include a Physical Layer Convergence Protocol (PLCP) Header field (Header) and a data field, where the PLCP Header includes a Preamble and a control field, and the control field may include a High efficiency signaling a part and a High efficiency signaling B (HE-SIGB) part. In addition, the PPDU may further include a Media Access Control (MAC) part.

The trigger frame indicates that the available channel of the first BSS may be a bandwidth indicating the available channel of the first BSS, and may also be number information of the available channel, and the like. In addition, the available channels of the first BSS may include one or more channels, such as: the available channel bandwidth of the first BSS is 80HMz, including 4 channels of 20HMz bandwidth.

By receiving the trigger frame, the first station may determine a channel currently used for transmitting the uplink data frame and an available channel of the first BSS.

In addition, the uplink transmission may be uplink multi-user transmission or uplink single-user transmission.

202. A first station transmits an uplink data frame on an available channel of the first BSS, wherein a physical layer preamble in the uplink data frame includes a signaling message, the signaling message includes an efficient signaling a, and the efficient signaling a includes channel information, and when the channel information is received by a second station in a second BSS, the channel information is used for the second station to determine a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS.

In this embodiment, before sending the efficient signaling a, the first station sends a Legacy Preamble (Legacy Preamble), and sends the efficient signaling a after the Legacy Preamble is sent.

203. And the second station receives the uplink data frame sent by the first station on the available channel of the first BSS, wherein the second station belongs to a second BSS.

In addition, the second station may be a Non-AP STA or an AP within the second BSS.

204. And the second station judges the non-coincidence part of the available channel of the second BSS and the available channel of the first BSS by using the channel information.

Because the uplink data frame includes the efficient signaling a, and the efficient signaling a includes channel information, and when the channel information is monitored by the STAs in the second BSS, the channel information is used by the STAs in the second BSS to determine a coincidence portion between an available channel of the second BSS and an available channel of the first BSS. The second station may then use the channel information to determine a non-overlapping portion of the available channels of the second BSS and the available channels of the first BSS. Therefore, the transmission is carried out by using the non-overlapped part, the overlapped part is avoided, the transmission in the first BSS cannot be influenced, and the transmission efficiency in the WLAN can be improved. In addition, the transmission efficiency herein may be understood as the efficiency of resource multiplexing parallel transmission, because the Non-AP STA in each BSS of the WLAN may transmit data for the resource multiplexing in parallel.

For example: as shown in fig. 3, BSS1 includes AP1, STA1, STA2, and STA3, and BSS2 includes AP2, STA1, and STA 4. As shown in fig. 4, the available channels of BSS1 are 80MHz bandwidth, the available channels of BSS2 are 80MHz bandwidth, and the third and fourth 20MHz channels in the 80MHz bandwidth of BSS1 coincide with the first and second 20MHz channels of the 80MHz bandwidth of BSS 2. Thus, when an STA in BSS1 transmits a data frame including the uplink data frame on the third and fourth 20MHz channels of BSS1 (the high efficiency signaling a field in the physical layer preamble of the uplink data frame includes channel information), the STA4 in BSS2 may receive the channel information, and may use the channel information to calculate the non-overlapping portion of the available channels of BB1 and BSS2, so that STA4 may use the third or fourth 20MHz channel of BSS2 for data transmission with AP2, and thus may not affect the transmission in BSS 1.

In this embodiment, it may be achieved that the uplink data frame is transmitted on an available channel of the first BSS, and the efficient signaling a field in the physical layer preamble of the uplink data frame includes channel information. Therefore, the STA in the second BSS can determine the non-overlapping part of the available channel of the second BSS and the available channel of the first BSS according to the received channel information contained in the high-efficiency signaling a field in the physical layer preamble of the uplink data frame. Therefore, the STA in the second BSS can use the non-overlapped part for transmission, and avoid using the overlapped part for transmission, so that the transmission in the first BSS cannot be influenced, and the transmission efficiency in the WLAN can be improved.

Referring to fig. 5, fig. 5 is a flowchart illustrating another signaling message transmission method according to an embodiment of the present invention, as shown in fig. 5, including the following steps:

501. a first station receives a trigger frame sent by an AP for triggering uplink transmission, where the trigger frame further indicates an available channel of a first basic service unit BSS, the first station and the AP both belong to the first BSS, and the first station is a Non-AP STA.

502. The method comprises the steps that a first station sends an uplink data frame on an available channel of a first BSS, wherein the step of sending the uplink data frame comprises the step of sending high-efficiency signaling A on each channel of the available channel of the first BSS, wherein the high-efficiency signaling A contains channel information, and when the channel information is received by a second station in a second BSS, the channel information is used for the second station to judge a non-coincident part of the available channel of the second BSS and the available channel of the first BSS.

In step 502, the first station may send the efficient signaling a on each channel included in the available channels of the first BSS, so that the STA in the second BSS using a different channel may receive the signaling message, thereby improving the implementation efficiency of the present technical solution.

In addition, in this embodiment, the first station sends a conventional preamble before sending the efficient signaling a, and sends uplink data after sending the efficient signaling a. Here, the conventional preamble and the efficient signaling a and the uplink data are both understood as the content in the uplink data frame in the embodiment shown in fig. 2. For example: as shown in fig. 6, the uplink data Frame sent by the first station may be, as the AP sends a trigger Frame on each channel of the available channels of the first BSS, and after an Inter Frame Space (IFS) is passed, the trigger Frame is recorded as an xfs, where the xfs may be a Short InterFrame Space (SIFS) of 16us, and the first station sends a signaling message included in the uplink data Frame on each channel of the available channels of the first BSS, where the signaling message may be a conventional preamble and an efficient signaling a, and then the first station may send uplink data included in the uplink data Frame on a channel used in the first BSS, where the uplink data may be uplink (Up Link, UL) transmission. That is, in the UL phase shown in fig. 6, each Non-AP STA in the first BSS may transmit uplink data on the channel used by each STA. After a gap (xfs), the AP returns an Acknowledgement (ACK) to each Non-AP STA in the first BSS.

503. And the second station receives the uplink data frame sent by the first station on the available channel of the first BSS, wherein a physical layer preamble in the uplink data frame contains a signaling message, the signaling message contains efficient signaling A, and the efficient signaling A contains channel information.

504. And the second station judges the non-coincidence part of the available channel of the second BSS and the available channel of the first BSS by using the channel information.

In this embodiment, the channel information includes channel number information of at least one of the available channels of the first BSS and a bandwidth of the available channel of the first BSS, where the bandwidth of each of the available channels of the first BSS is the same.

The channel number information of the at least one channel may be channel number information of one or more channels at any position of the available channels in the first BSS, or channel number information of a preset position, where the preset position may be channel number information of a starting channel of the available channels of the first BSS, that is, the channel number information of a first channel of the available channels of the first BSS is included in the channel information. Of course, the channel at the preset position is not limited to the starting channel, and for example: it may also be an end channel, i.e. the last channel.

The channel number information may be a channel number specified by IEEE, and as shown in fig. 7, channel numbers such as

channel numbers

36, 40, and 44 are internationally specified for the 5GHz band, where the channel number 36 refers to a channel having a bandwidth of 20MHz corresponding to a central frequency of 5180 MHz. Alternatively, the channel number may also adopt a channel number of a 2.4G frequency band specified internationally.

In addition, the Bandwidth of the available channel of the first BSS may be indicated by a BSS available channel (BSS BW) field in the efficient signaling a, where the BSS BW is used to indicate the BSS available channel Bandwidth, for example: as shown in fig. 8, efficient signaling a may contain a BSS BW field, a channel number information field

Thus, when the second station receives the channel information, step 404 may be performed, and in this embodiment, step 504 may include:

Since the bandwidth of the available channel of the first BSS can be determined by the channel information, the number of channels included in the available channel of the first BSS is determined, and the channels in the available channels in the BSSs in the WLAN are all continuous, and the bandwidth of each of the available channels of the first BSS is the same, so that the number information of each channel can be deduced by only knowing the number information of one channel. Note that the channel number information is a channel number specified by IEEE, that is, in this embodiment, all channels included in the available channels of the first BSS and the second BSS are understood as channels specified by IEEE (a channel bandwidth of 20MHz is used as a unit channel). For example: taking the available channel as 80MHz for example, the available channel may include 4 unit channels of 20 MHz.

Taking fig. 6, fig. 3 and fig. 4 as an example, when the starting channel number of the high efficiency signaling a sent by the STA1 is 36, then the STA4 receives the starting channel number 36 of the STA1 and the available channel bandwidth of the first BSS is 80MHz, so that it can calculate that the available channels of the first BSS include 4 20MHz channels, and the numbers of the 4 20MHz channels are 36, 40, 44 and 48 in turn, so that the STA4 can select channels with the numbers not identical to those of 36, 40, 44 and 48 in the available channels of the second BSS.

In addition, in this embodiment, each Non-AP STA within the first BSS transmits the same content of efficient signaling a on each of the available channels.

In this embodiment, since only the channel number information of at least one channel and the bandwidth of the available channel need to be represented in the efficient signaling, the overhead of the efficient signaling can be saved. For example: the bandwidth may be represented by two bits, 20MHz, 40MHz, 80MHz, and 160MHz using 2 bits "00", "01", "10", and "11", and the number information may be represented by bits of different numbers of bits.

In this embodiment, the available channels include at least one channel, and the bandwidth of each channel included in the available channels is the same; the channel information may be used to indicate a bandwidth of a channel used by the first station in available channels of the first BSS and also to indicate a location of the channel used by the first station in the available channels of the first BSS.

Step 504 may include:

and the second station judges the non-coincident part of the available channel of the second BSS and the available channel of the first BSS by using the bandwidth of the channel used by the first station in the available channel of the first BSS and the position of the channel used by the first station in the available channel of the first BSS.

In this embodiment, it is possible to implement that the second station in the second BSS judges the non-overlapping part of the available channel of the second BSS and the available channel of the first BSS by the bandwidth of the channel used by the first station in the available channel of the first BSS and the position of the channel used by the first station in the available channel of the first BSS.

In this embodiment, when the first station transmits the uplink data frame on the used channel, the second station may determine, by receiving the uplink data frame transmitted by the first station on the used channel, a non-overlapping portion between the available channel of the second BSS and the available channel of the first BSS according to the bandwidth and the location of the channel used by the first station. For example: taking fig. 4 as an example, STA2 uses the fourth channel, and the bandwidth of the available channel of the first BSS can be known from the efficiently signaled BSS BW, and it can be known from the channel information that STA2 uses 20MHz of the fourth channel, and in addition, by receiving STA2 transmitting uplink data on the fourth channel, it can be known that the second channel of the second BSS coincides with the fourth channel used by STA2, and then the first channel in the second BSS also coincides with the third channel in the first BSS. Since in practice the channels included in the available channels of each BSS are continuous, for example: the numbering used is as shown in figure 6.

In addition, in this embodiment, the channel information may be defined as Transmit Bandwidth (Tx BW) information, and as shown in fig. 9, the efficient signaling a may include a BSS BW field and a Tx BW field.

In addition, in this embodiment, the channel information may indicate, in a bitmap manner, a bandwidth of a channel used by the first station in the available channels of the first BSS, and indicate a position of the channel used by the first station in the available channels of the first BSS.

The channel information may include N bits, and each bit may represent a channel, for example: the used channel is denoted by 1 and the unused channel is denoted by 0. The bandwidth and location of the channel used by the first station can then be determined from these bits. For example: by taking a 20MHz channel as a unit, a total of 8 bits are used to represent each 20MHz channel, so that the minimum can represent 20MHz, and the maximum can represent 160MHz, and the 8 bits constitute the above channel information. In addition, the bandwidth of the available channel of the BSS and the channel size and location that the first station can use can be combined. For example: in the scenario shown in fig. 4, BSS BW of 80MHz is denoted by "01", and STA3 uses the first two 20HMz channels in the 80MHz, so that "Tx BW is 11000000", as shown in fig. 10 specifically.

In this embodiment, by using the bitmap for representation, the overhead of efficient signaling can be saved, for example: in this embodiment, the channel indication combination pattern of all of the 160MHz available channels can be represented by 8 bits.

In the foregoing embodiment, the channel information may include an ordinate value and an abscissa value of a preset channel division table, where the preset channel division table includes a plurality of channel combination patterns, and each channel combination pattern is used to indicate a bandwidth of a channel and a position of the channel, where a channel combination pattern corresponding to a set of coordinates including the ordinate value and the abscissa value indicates a bandwidth of a channel used by the first station in available channels of the first BSS and indicates a position of a channel used by the first station in the available channels of the first BSS.

In this embodiment, the channel combination mode may refer to a combination including a bandwidth of a used channel and a position of the used channel, for example: as shown in fig. 11, all the combination patterns of the 160MHz available channels are given in the table shown in fig. 11. Thus, a combination pattern can be determined by an arbitrary coordinate set of the ordinate values and the abscissa values in the table. The efficient signalling a transmitted by the first station may thus comprise ordinate and abscissa values for the combined pattern corresponding to the channel used by the first station. In addition, when a plurality of ordinate values corresponding to the combination mode exist, the high-efficiency signaling a only needs to include one of the ordinate values. For example: as shown in fig. 11, the abscissa represents channel division from number 1 to number 14, which can be represented by 4 bits, e.g., "0000" for number 1, "0001" for number 2, and so on; the vertical seat represents the combination order, from number 1 to number 8, which can be used for a3 bit representation, e.g. "000" for number 1, "001" for number 2, and so on. When the first station uses the combination pattern with the horizontal coordinate number of 6 and the vertical coordinate number of 3, the channel information may include "0101" and "010", for example: tx BW in fig. 9 is 0101010. When the first station uses the combination mode with the horizontal coordinate number of 10 and the vertical coordinate number of 4, the channel information may include "1001" and "011", for example: tx BW in fig. 9 is 1001011.

In this embodiment, the overhead of the efficient signaling a can be more saved than the bitmap representation provided above, for example: for the 160MHz available channel, 8 bits are needed in the bitmap manner, while only 7 bits are needed in this embodiment.

In the above embodiment, the channel information may include a table index of a preset channel location mapping table, where the preset channel location mapping table includes a plurality of table entries and a table index of each table entry, where one table entry in the plurality of table entries indicates a bandwidth of a channel used by the first station in an available channel of the first BSS, and indicates a location of the channel used by the first station in the available channel of the first BSS.

Based on fig. 11, it can be seen that 21 different channel combination patterns are accumulated for the 160MHz available bandwidth, i.e., 8 combination patterns of 20MHz channels, 7 combination patterns of 40HMz channels, 5 combination patterns of 80MHz channels, and 1 combination pattern of 160MHz channels. These 21 channel combination patterns can be represented by a preset channel position mapping table, and one channel combination pattern corresponds to one table index, so that the bandwidth and position of the channel used by the first station can be represented by only including the table index in the efficient signaling a. For example: only 5 bits are needed for the available bandwidth of 160MHz to represent the transmission bandwidth information. In this embodiment, the overhead of the efficient signaling a is saved more than in the above two embodiments.

In the above embodiment, the channel information may include first indication information and second indication information, where the first indication information is used to indicate a bandwidth of a channel used by the first station in an available channel of the first BSS, and the second indication information is used to indicate a location of the channel indicated by the first indication information in the available channel of the first BSS.

In this embodiment, the first indication information and the second indication information may be indicated by bits, for example: for an available channel of 160MHz, the first indication information may use 2 bits of "00", "01", "10", and "11" to represent 20MHz, 40MHz, 80MHz, and 160MHz, and the second indication information may use 3 bits to indicate a location of a channel used by the first station. In addition, the second indication information may indicate the location of the first channel used by the first station, because the channels used by the first station are often continuous, so that the location of the first channel is determined and the locations of all the channels used are determined. For example: for the 160MHz available channel, the second indication information only needs to indicate the first 20MHz channel used by the first station in the 160MHz available channel.

In addition, in this embodiment, for the efficient signaling a shown in fig. 9, as shown in fig. 12, the Tx BW field may be divided into two parts: the bandwidth values (BW Value, for example, 2 bits of "00", "01", "10", and "11" are used to indicate 20MHz, 40MHz, 80MHz, and 160MHz) and Location information (Location Info) are used. In addition, the location information may also be represented based on the table shown in fig. 13, with 20MHz channels as units, and the sequence numbers (order)1 to 8 representing the corresponding 20 MHz. So the position information can use 3 bits to represent 8 different sequence numbers, e.g. "000" for sequence number 1, "001" for sequence number 2, and so on. In connection with the examples in fig. 3 and fig. 4, STA3 uses the first two 20HMz channels, i.e., "location information is 000", in the 80MHz available channel of BSS1, i.e., "BW Value is 01", and TA3 uses the first two 20HMz channels, i.e., "location information is 000", in the 80MHz available channel of BSS 1.

In this embodiment, the overhead of efficient signaling a can also be reduced, for example, for an available channel of 160MHz, only 5 bits are needed to indicate the bandwidth and location of the channel used by the first station.

It should be noted that, in this embodiment, the signaling message transmission method provided by the present invention may also be used in a downlink transmission frame or a station-to-station direct communication transmission frame of an available channel of the first BSS, that is, channel information may also be added to the efficient signaling a of the signaling information of the physical layer preamble of the downlink frame or the station-to-station direct communication transmission frame, and both the content and the implementation of the channel information may refer to the channel information included in the uplink data frame. Thus, through the channel information included in the downlink frame or the direct station-to-station communication transmission frame, the STA of the second BSS can select to use the available channel of the second BSS to perform communication transmission with a non-overlapping portion of the available channel of the first BSS.

In this embodiment, various optional embodiments are added to the embodiment shown in fig. 2, and all of them can improve the transmission efficiency in the WLAN.

For convenience of description, only the relevant parts of the embodiments of the present invention are shown, and details of the specific technology are not disclosed.

Referring to fig. 14, fig. 14 is a schematic structural diagram of a signaling message transmission apparatus according to an embodiment of the present invention, where the apparatus may be applied to a first station, and as shown in fig. 14, the apparatus includes: a receiving unit 141 and a transmitting unit 142, wherein:

a receiving unit 141, configured to receive a trigger frame sent by an AP and used for triggering uplink transmission, where the trigger frame further indicates an available channel of a first BSS, the first station and the AP both belong to the first BSS, and the first station is a Non-access point type station Non-AP STA.

In this embodiment, the description of the trigger message may refer to the embodiments shown in fig. 2 and fig. 5, and will not be repeated here.

A sending unit 142, configured to send an uplink data frame on an available channel of the first BSS, where a physical layer preamble in the uplink data frame includes a signaling message, the signaling message includes an efficient signaling a, and the efficient signaling a includes channel information, where the channel information is used by a second station in a second BSS to determine a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS when the channel information is received by the second station.

In this embodiment, the description of the uplink data frame may refer to the embodiments shown in fig. 2 and fig. 5, and will not be repeated here.

The above units may be used to transmit the uplink data frame on the available channel of the first BSS, where the efficient signaling a field in the physical layer preamble of the uplink data frame includes channel information. Therefore, the STA in the second BSS can determine the non-overlapping part of the available channel of the second BSS and the available channel of the first BSS according to the received channel information contained in the high-efficiency signaling a field in the physical layer preamble of the uplink data frame. Therefore, the STA in the second BSS can use the non-overlapped part for transmission, and avoid using the overlapped part for transmission, so that the transmission in the first BSS cannot be influenced, and the transmission efficiency in the WLAN can be improved.

In this embodiment, the channel information may include channel number information of at least one of the available channels of the first BSS and a bandwidth of the available channel of the first BSS, where the bandwidth of each of the available channels of the first BSS is the same.

In this embodiment, the second station may determine, by using the channel number information of the at least one channel included in the channel information and the bandwidth of the available channel of the first BSS, a channel in which the channel number information in the available channel of the second BSS is different from the channel number information in the available channel of the first BSS, and use a channel in which the channel number information in the available channel of the second BSS is different from the channel number information in the available channel of the first BSS as a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS.

In this embodiment, reference may be made to the corresponding description in the embodiment shown in fig. 5, and a repeated explanation is not provided here.

Thus, the second station can determine the non-overlapping part of the available channel of the second BSS and the available channel of the first BSS by using the bandwidth of the channel used by the first station in the available channel of the first BSS and the position of the channel used by the first station in the available channel of the first BSS.

In the above embodiment, the channel information may indicate, in a bitmap manner, a bandwidth of a channel used by the first station in the available channels of the first BSS, and indicate a position of the channel used by the first station in the available channels of the first BSS.

In this embodiment, the sending unit 142 may be configured to send the efficient signaling a on each channel included in the available channels of the first BSS.

The sending unit 142 may send the efficient signaling a on each channel included in the available channels of the first BSS, so that the Non-AP STA in the second BSS can more easily monitor the efficient signaling a, and thus the number of channels monitored by the STA in the second BSS may be reduced, so as to improve the implementation efficiency of the present technical solution.

In this embodiment, the first station may be a terminal, for example: the mobile phone supporting the Wi-Fi communication function, the tablet personal computer supporting the Wi-Fi communication function, the set top box supporting the Wi-Fi communication function, the smart television supporting the Wi-Fi communication function, the smart wearable device supporting the Wi-Fi communication function, the vehicle-mounted communication device supporting the Wi-Fi communication function, the computer supporting the Wi-Fi communication function and the like. Of course, the first station may also be a wireless communication chip or a wireless sensor. In addition, in this embodiment, if the apparatus is applied to the first station, it may also be understood that the apparatus may be a terminal, or the apparatus may be a functional module in the terminal.

It should be noted that the apparatus provided in this embodiment may be applied to the first station in any embodiment shown in fig. 1 to 13, and the embodiment of the first station in any embodiment shown in fig. 1 to 13 may be implemented by the apparatus provided in this embodiment, and a repeated description is not provided here.

In this embodiment, a trigger frame sent by an AP for triggering uplink transmission is received, where the trigger frame further indicates an available channel of a first basic service unit BSS, the first station and the AP both belong to the first BSS, and the first station is a Non-access point type station Non-AP STA; and sending an uplink data frame on an available channel of the first BSS, wherein a physical layer preamble in the uplink data frame contains a signaling message, the signaling message contains high-efficiency signaling A, and the high-efficiency signaling A contains channel information, wherein when the channel information is received by a second station in a second BSS, the channel information is used for the second station to judge a non-coincident part of the available channel of the second BSS and the available channel of the first BSS. Therefore, the second station can use the non-repeated part for transmission, avoids using the overlapped part for uplink transmission, and cannot influence the transmission in the first BSS, thereby improving the transmission efficiency in the WLAN.

Referring to fig. 15, fig. 15 is a schematic structural diagram of another signaling message transmission apparatus according to an embodiment of the present invention, which may be applied to a second station, where the second station belongs to a second BSS, and the second station may be a Non-AP STA or an AP, as shown in fig. 15, including: a receiving unit 151 and a judging unit 152, wherein:

a receiving unit 151, configured to receive an uplink data frame sent by a first station in a first BSS on an available channel of the first BSS, where the second station belongs to a second BSS, the first station is a Non-AP STA, and a physical layer preamble in the uplink data frame includes a signaling message, where the signaling message includes an efficient signaling a, where the efficient signaling a includes channel information, and the channel information is used for the second station to determine a Non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS.

In this embodiment, the above signaling message may refer to the description in the embodiments shown in fig. 2 and 5, and will not be described repeatedly here.

A determining unit 152, configured to determine a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS by using the channel information.

The determining unit 152 determines a coincidence portion of the available channel of the second BSS and the available channel of the first BSS using the channel information. Therefore, the second station can use the non-overlapped part for transmission, avoids using the overlapped part, and cannot influence the transmission in the first BSS, so that the transmission efficiency in the WLAN can be improved.

In this embodiment, the channel information may include channel number information of at least one of the available channels of the first BSS, and a bandwidth of the available channel of the first BSS, where the bandwidth of each of the channels included in the available channels of the first BSS is the same;

the determining unit 152 may be configured to determine, using the channel number information of the at least one channel included in the channel information and the bandwidth of the available channel of the first BSS, a channel in which the channel number information in the available channel of the second BSS is different from the channel number information in the available channel of the first BSS, and use a channel in which the channel number information in the available channel of the second BSS is different from the channel number information in the available channel of the first BSS as a non-overlapping part of the available channel of the second BSS and the available channel of the first BSS.

In this embodiment, the available channels include at least one channel, and the bandwidth of each channel included in the available channels is the same; the channel information may be used to indicate a bandwidth of a channel used by the first station in available channels of the first BSS and also to indicate a location of the channel used by the first station in the available channels of the first BSS;

the determining unit 152 is configured to determine a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS by using the bandwidth of the channel used by the first station in the available channel of the first BSS and the location of the channel used by the first station in the available channel of the first BSS.

In this embodiment, the channel information may indicate, in a bitmap manner, a bandwidth of a channel used by the first station in the available channels of the first BSS, and a position of the channel used by the first station in the available channels of the first BSS.

In this embodiment, reference may be made specifically to the embodiment shown in fig. 5, and a description thereof will not be repeated here.

The channel information may include an ordinate value and an abscissa value of a preset channel division table, where the preset channel division table includes a plurality of channel combination patterns, and each channel combination pattern is used to represent a bandwidth of a channel and a position of the channel, where a channel combination pattern corresponding to a set of coordinates including the ordinate value and the abscissa value represents a bandwidth of a channel used by the first station in available channels of the first BSS and represents a position of a channel used by the first station in the available channels of the first BSS.

The channel information may include a table index of a preset channel location mapping table, where the preset channel location mapping table includes a plurality of table entries and a table index of each table entry, where one table entry in the plurality of table entries indicates a bandwidth of a channel used by the first station in an available channel of the first BSS, and indicates a location of the channel used by the first station in the available channel of the first BSS.

In this embodiment, the second station may be a terminal or an AP, for example: the mobile phone supporting the Wi-Fi communication function, the tablet personal computer supporting the Wi-Fi communication function, the set top box supporting the Wi-Fi communication function, the smart television supporting the Wi-Fi communication function, the smart wearable device supporting the Wi-Fi communication function, the vehicle-mounted communication device supporting the Wi-Fi communication function, the computer supporting the Wi-Fi communication function and the like. Of course, the second station may also be a wireless communication chip or a wireless sensor. In addition, in this embodiment, if the apparatus is applied to the second station, it may also be understood that the apparatus may be a terminal, or the apparatus may be a functional module in the terminal.

It should be noted that the apparatus provided in this embodiment may be applied to the second station in any embodiment shown in fig. 1 to 13, and the embodiment of the second station in any embodiment shown in fig. 1 to 13 may be implemented by the apparatus provided in this embodiment, and a repeated description is not provided here.

In this embodiment, an uplink data frame sent by a first station in a first BSS on an available channel of the first BSS is received, where the second station belongs to a second BSS, the first station is a Non-AP STA, and a physical layer preamble in the uplink data frame includes a signaling message, where the signaling message includes an efficient signaling a, where the efficient signaling a includes channel information, and the channel information is used for the second station to determine a Non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS; and judging a non-coincidence part of the available channel of the second BSS and the available channel of the first BSS by using the channel information. Therefore, the STA in the second BSS can use the non-overlapped part for transmission, the overlapped part is avoided from being used for uplink transmission, the transmission in the first BSS cannot be influenced, and the transmission efficiency in the WLAN can be improved.

Referring to fig. 16, fig. 16 is a schematic structural diagram of another signaling message transmission apparatus according to an embodiment of the present invention, which can be applied to a first station, as shown in fig. 16, including: a processor 161, a network interface 162, a memory 163 and a communication bus 164, wherein the communication bus 164 is used for realizing the connection communication among the processor 161, the network interface 162 and the memory 163, and the processor 161 executes the program stored in the memory 163 for realizing the following method:

receiving a trigger frame sent by an AP and used for triggering uplink transmission, wherein the trigger frame further indicates an available channel of a first BSS, the first station and the AP both belong to the first BSS, and the first station is a Non-AP STA (station Non-AP);

and sending an uplink data frame on an available channel of the first BSS, wherein a physical layer preamble in the uplink data frame contains a signaling message, the signaling message contains high-efficiency signaling A, and the high-efficiency signaling A contains channel information, wherein when the channel information is received by a second station in a second BSS, the channel information is used for the second station to judge a non-coincident part of the available channel of the second BSS and the available channel of the first BSS.

In this embodiment, the channel information may indicate, in a bitmap manner, a bandwidth of a channel used by the first station in the available channels of the first BSS, and a position of the channel used by the first station in the available channels of the first BSS; or

In this embodiment, the procedure executed by the processor 161 for sending the uplink data frame on the available channel of the first BSS may include:

the efficient signaling a is sent on each of the available channels of the first BSS.

In this embodiment, a trigger frame sent by an AP for triggering uplink transmission is received, where the trigger frame further indicates an available channel of a first basic service unit BSS, the first station and the AP both belong to the first BSS, and the first station is a Non-AP STA; and sending an uplink data frame on an available channel of the first BSS, wherein a physical layer preamble in the uplink data frame contains a signaling message, the signaling message contains high-efficiency signaling A, and the high-efficiency signaling A contains channel information, wherein when the channel information is received by a second station in a second BSS, the channel information is used for the second station to judge a non-coincident part of the available channel of the second BSS and the available channel of the first BSS. Therefore, the second station can use the non-repeated part for transmission, avoids using the overlapped part for uplink transmission, and cannot influence the transmission in the first BSS, thereby improving the transmission efficiency in the WLAN.

Referring to fig. 17, fig. 17 is a schematic structural diagram of another signaling message transmission apparatus according to an embodiment of the present invention, where the apparatus may be applied to a second station, the second station belongs to a second BSS, and the second station may be a Non-AP STA or an AP, as shown in fig. 17, including: a processor 171, a network interface 172, a memory 173 and a communication bus 174, wherein the communication bus 174 is used for realizing the connection communication among the processor 171, the network interface 172 and the memory 173, and the processor 171 executes the program stored in the memory 173 for realizing the following methods:

receiving an uplink data frame sent by a first station in a first BSS on an available channel of the first BSS, wherein the second station belongs to a second BSS, the first station is a Non-AP STA, and a physical layer preamble in the uplink data frame contains a signaling message, wherein the signaling message contains efficient signaling A, the efficient signaling A comprises channel information, and the channel information is used for the second station to judge a Non-coincident part of the available channel of the second BSS and the available channel of the first BSS;

and judging a non-coincidence part of the available channel of the second BSS and the available channel of the first BSS by using the channel information.

the process executed by the processor 171 for determining a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS by using the channel information may include:

and judging a channel of which the channel number information in the available channel of the second BSS is different from the channel number information in the available channel of the first BSS by using the channel number information of the at least one channel contained in the channel information and the bandwidth of the available channel of the first BSS, and taking the channel of which the channel number information in the available channel of the second BSS is different from the channel number information in the available channel of the first BSS as a non-coincident part of the available channel of the second BSS and the available channel of the first BSS.

and judging the non-coincidence part of the available channel of the second BSS and the available channel of the first BSS by using the bandwidth of the channel used by the first station in the available channel of the first BSS and the position of the channel used by the first station in the available channel of the first BSS.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

Claims

1. A method for signaling message transmission, comprising:

a first station receives a trigger frame which is sent by a station AP of an access point class and used for triggering uplink transmission, wherein the trigger frame also indicates an available channel of a first basic service unit BSS, the first station and the AP both belong to the first BSS, and the first station is a Non-access point class station Non-AP STA;

2. The method of claim 1, wherein the channel information includes channel number information of at least one channel among available channels of the first BSS, and a bandwidth of the available channels of the first BSS, wherein the bandwidth of each channel included in the available channels of the first BSS is the same.

3. The method of claim 1, wherein the available channels of the first BSS include at least one channel, and wherein the available channels of the first BSS include each channel having the same bandwidth;

4. The method of claim 3, wherein the channel information indicates, in a bitmap manner, a bandwidth of a channel used by the first station in available channels of the first BSS and a position of the channel used by the first station in the available channels of the first BSS; or

The channel information comprises an ordinate value and an abscissa value of a preset channel division table, wherein the preset channel division table comprises a plurality of channel combination modes, and each channel combination mode is used for representing the bandwidth of a channel and the position of the channel, wherein the channel combination mode corresponding to a coordinate set comprising the ordinate value and the abscissa value represents the bandwidth of the channel used by the first station in the available channel of the first BSS and represents the position of the channel used by the first station in the available channel of the first BSS; or

The channel information includes a table index of a preset channel position mapping table, where the preset channel position mapping table includes a plurality of table entries and a table index of each table entry, where one table entry in the plurality of table entries indicates a bandwidth of a channel used by the first station in an available channel of the first BSS, and indicates a position of the channel used by the first station in the available channel of the first BSS; or

The channel information includes first indication information and second indication information, wherein the first indication information is used for indicating a bandwidth of a channel used by the first station in available channels of the first BSS, and the second indication information is used for indicating a position of the channel indicated by the first indication information in the available channels of the first BSS.

5. The method of any of claims 1-4, wherein the first station transmitting an uplink data frame on an available channel of the first BSS, comprises:

6. A method for signaling message transmission, comprising:

7. The method of claim 6, wherein the channel information includes channel number information of at least one of the available channels of the first BSS, and a bandwidth of the available channels of the first BSS, wherein the bandwidth of each of the channels included in the available channels of the first BSS is the same;

the second station determining a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS using the channel information, including:

8. The method of claim 6, wherein the available channels include at least one channel, the available channels including each channel having the same bandwidth;

the channel information is used for indicating the bandwidth of the channel used by the first station in the available channels of the first BSS and is also used for indicating the position of the channel used by the first station in the available channels of the first BSS;

9. The method of claim 8, wherein the channel information indicates, in a bitmap manner, a bandwidth of a channel used by the first station in available channels of the first BSS and a position of the channel used by the first station in the available channels of the first BSS; or

10. A signaling message transmission apparatus, the apparatus being applied to a first station, the first station being a Non-access point-like station Non-AP STA, the apparatus comprising: a receiving unit and a transmitting unit, wherein:

the receiving unit is configured to receive a trigger frame, which is sent by a station AP of an access point class and used for triggering uplink transmission, where the trigger frame further indicates an available channel of a first basic service unit BSS, and both the first station and the AP belong to the first BSS;

the sending unit is configured to send an uplink data frame on an available channel of the first BSS, where a physical layer preamble in the uplink data frame includes a signaling message, the signaling message includes an efficient signaling a, and the efficient signaling a includes channel information, where the channel information is used by a second station in a second BSS to determine a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS when the channel information is received by the second station.

11. The apparatus of claim 10, wherein the channel information includes channel number information of at least one channel among the available channels of the first BSS, and a bandwidth of the available channels of the first BSS, wherein the bandwidth of each channel included in the available channels of the first BSS is the same.

12. The apparatus of claim 10, wherein the available channels of the first BSS comprise at least one channel, and wherein the available channels of the first BSS comprise each channel having the same bandwidth;

13. The apparatus of claim 12, wherein the channel information indicates, in a bitmap manner, a bandwidth of a channel used by the first station in available channels of the first BSS and a position of the channel used by the first station in the available channels of the first BSS; or

14. The apparatus of any of claims 10-13, wherein the means for sending is configured to send the efficient signaling a on each of the available channels of the first BSS.

15. An arrangement according to any of claims 10-13, wherein the first station is a terminal.

16. A signaling message transmission apparatus, applied to a second station belonging to a second BSS, comprising: a receiving unit and a judging unit, wherein:

the receiving unit is configured to receive an uplink data frame sent by a first station in a first BSS on an available channel of the first BSS, where the second station belongs to a second BSS, the first station is a Non-AP STA, and a physical layer preamble in the uplink data frame includes a signaling message, where the signaling message includes an efficient signaling a, the efficient signaling a includes channel information, and the channel information is used for the second station to determine a Non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS;

the determining unit is configured to determine a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS by using the channel information.

17. The apparatus of claim 16, wherein the channel information includes channel number information of at least one of the available channels of the first BSS, and a bandwidth of the available channels of the first BSS, wherein the bandwidth of each of the channels included in the available channels of the first BSS is the same;

the judging unit is configured to judge, using the channel number information of the at least one channel included in the channel information and the bandwidth of the available channel of the first BSS, a channel in which the channel number information in the available channel of the second BSS is different from the channel number information in the available channel of the first BSS, and use a channel in which the channel number information in the available channel of the second BSS is different from the channel number information in the available channel of the first BSS as a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS.

18. The apparatus of claim 16, wherein the available channels comprise at least one channel, the available channels comprising each channel having the same bandwidth;

the determining unit is configured to determine a non-overlapping portion of the available channel of the second BSS and the available channel of the first BSS using a bandwidth of a channel used by the first station in the available channel of the first BSS and a location of the channel used by the first station in the available channel of the first BSS.

19. The apparatus of claim 18, wherein the channel information indicates, in a bitmap manner, a bandwidth of a channel used by the first station in available channels of the first BSS and a position of the channel used by the first station in the available channels of the first BSS; or

20. An apparatus according to any of claims 16-19, wherein the second station is a terminal or an AP.

21. A computer-readable storage medium, characterized in that it stores a computer program which, when executed by hardware, is capable of implementing the method of any one of claims 1 to 5.

22. A computer-readable storage medium, characterized in that it stores a computer program which, when executed by hardware, is capable of implementing the method of any one of claims 6 to 9.