CN113630787A

CN113630787A - Operation mode negotiation method, device and chip

Info

Publication number: CN113630787A
Application number: CN202010387054.3A
Authority: CN
Inventors: 于健; 李云波; 郭宇宸; 淦明; 狐梦实
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2021-11-09
Anticipated expiration: 2040-05-09
Also published as: WO2021228046A1; CN118741562A; CN113630787B

Abstract

The application provides a negotiation method, equipment and a chip system of an operation mode. The application provides a negotiation method of an operation mode, which comprises the following steps: an initiating end sends an operation mode indication OMI, wherein the OMI comprises a lead code punching bandwidth indication; the preamble puncturing bandwidth indication is used for indicating a bandwidth range for carrying a signaling field; the signaling field at least carries all signaling information required for demodulating data in a physical layer protocol data unit (PPDU); and then the initiating terminal performs PPDU transmission with the responding terminal according to the bandwidth range indicated by the preamble puncturing bandwidth indication. The method better balances throughput rate and power consumption/complexity by indicating the preamble punching bandwidth operation mode OM supported by the response end through the semi-static state of the initiating end. In addition, the application also provides a content channel mode OM and a negotiation method of a signaling field receiving position OM.

Description

Operation mode negotiation method, device and chip

Technical Field

The present application relates to the field of wireless communications, and in particular, to a method, an apparatus, and a chip for negotiating an operation mode.

Background

Wireless communication systems are currently deployed in large-scale applications to provide various types of communication, such as voice, data, multimedia, etc., to multiple users. The Institute of Electrical and Electronics Engineers (IEEE) 802.11 is one of the currently mainstream wireless access standards, and has been in extremely wide commercial use. In the ieee802.11a/g standard, only 20 megahertz (MHz) bandwidth is supported, and the bandwidth is increasing during the evolution of the subsequent standard. The maximum bandwidth of 40MHz is supported in the 802.11n standard, the maximum bandwidth of 160MHz is supported in the 802.11ac/ax standard, and the maximum bandwidth of 320MHz can be supported in the next generation wireless access standard 802.11 be.

As the bandwidth increases, the data transmission rate also increases, and the condition for using larger bandwidth transmission is to detect channels in a certain order, and ensure that all channels in the bandwidth are idle and available, but some channels often have interference, which results in an unavailable situation, in which the larger bandwidth cannot be used. Therefore, the 802.11ax standard introduces a preamble puncturing transmission method, which allows transmission of a physical layer protocol data unit (PPDU) even when a part of 20MHz channels do not transmit a preamble (and subsequent data). However, in the 802.11ax standard, only the Operation Mode Indication (OMI) of the total bandwidth is supported, and the corresponding OMI is not designed for preamble puncturing.

Therefore, how to design OMI suitable for preamble puncturing with larger bandwidth to indicate the preamble puncturing manner more flexibly is a main problem solved by the present application.

Disclosure of Invention

To solve the above technical problem, the present application discloses a method, an apparatus, a chip system, a computer-readable storage medium, a computer product, and the like for negotiating an operation mode.

In a first aspect, the present application provides a method for negotiating an operation mode, including: an initiating end sends an Operation Mode Indication (OMI) to a responding end, wherein the OMI comprises a preamble puncturing bandwidth indication which is used for indicating a bandwidth range for bearing a signaling field; the signaling field carries at least one part of all signaling information required for demodulating data in the PPDU; after negotiation with the response end, the initiating end performs PPDU transmission with the response end according to the bandwidth range indicated by the preamble code punching bandwidth indication.

In one embodiment, the preamble puncturing bandwidth indication includes at least one of a preamble puncturing reception bandwidth indication and a preamble puncturing transmission bandwidth indication; the preamble-punctured receiving bandwidth indication indicates a bandwidth range of a signaling field which is used for indicating that a receiving end of the PPDU can read at least one part of all signaling information required for demodulating data in the PPDU;

the preamble puncturing transmission bandwidth indication is used for indicating a bandwidth range occupied by a signaling field corresponding to at least one piece of signaling information required for demodulating data in a PPDU sent by a sending end of the PPDU. In other words, the preamble puncturing transmission bandwidth indication is used to indicate an initiating end of the OMI negotiation, when the transmitting end is used as a PPDU, all signaling information required for demodulating data in the PPDU, which is transmitted by at least one receiving end, does not exceed a bandwidth range indicated by the preamble puncturing transmission bandwidth indication, and accordingly, the receiving end of the PPDU can receive or read all signaling information required for demodulating data in the PPDU, which is transmitted by the receiving end, over the bandwidth range.

The method enables an initiating terminal and a responding terminal of OMI negotiation to negotiate a lead code punching bandwidth range according to the lead code punching condition, the responding terminal only receives and analyzes the signaling field from the bandwidth range indicated by the lead code punching bandwidth indication, the signaling field does not need to be received and analyzed from the whole channel bandwidth, and the efficiency of analyzing the signaling field is improved; in addition, when the negotiated lead code punching bandwidth is small, the power consumption can be reduced, and the energy-saving effect is achieved; when the negotiated preamble puncturing bandwidth is large, a more flexible preamble puncturing mode can be supported, and the transmission throughput rate and the transmission rate are further improved.

In one embodiment, the OMI further includes a channel bandwidth indication for indicating a range of an entire channel bandwidth for transmitting the PPDU.

In one embodiment, the channel bandwidth indication and the preamble puncturing bandwidth indication may be jointly indicated. That is, the channel bandwidth indication and the preamble punching bandwidth indication adopt the same indication information for indication, the method utilizes the characteristic that the preamble punching bandwidth does not exceed the channel bandwidth, saves a plurality of items wasted by unnecessary combinations, saves bit values and reduces indication overhead.

In one embodiment, the OMI is carried in control information corresponding to the control subfield, and the OMI includes a preamble puncturing bandwidth indication.

In one embodiment, the OMI may also be carried in an Extreme High Throughput (EHT) operation element of the management frame, and the OMI includes a preamble puncturing bandwidth indication indicating a bandwidth range for carrying the signaling field.

In one embodiment, the control subfield includes a control Identifier (ID), which is one of the reserved control IDs.

In one embodiment, the preamble puncture reception bandwidth indication may be used to indicate any one of bandwidths of 40MHz, 80MHz, and 160 MHz; may also be used to indicate either of 80MHz and 160MHz bandwidths; the number of bits required for the two indication modes is different. For example, any one of bandwidths of 40MHz, 80MHz, and 160MHz is indicated by 2 bits, 00 indicates 40MHz, 01 indicates 80MHz, and 10 indicates 160MHz, and 11 indicates a reserved bit. As another example, 1 bit indicates either one of bandwidths of 80MHz and 160MHz, 0 indicates 80MHz, 1 indicates 160MHz, or vice versa.

In one embodiment, the preamble puncture transmission bandwidth indication may be used to indicate any one of bandwidths of 40MHz, 80MHz, and 160 MHz; may also be used to indicate either of 80MHz and 160MHz bandwidths; the number of bits required for the two indication modes is different. For example, any one of bandwidths of 40MHz, 80MHz, and 160MHz is indicated by 2 bits, 00 indicates 40MHz, 01 indicates 80MHz, and 10 indicates 160MHz, and 11 indicates a reserved bit. As another example, 1 bit indicates either one of bandwidths of 80MHz and 160MHz, 0 indicates 80MHz, 1 indicates 160MHz, or vice versa.

In one embodiment, the channel bandwidth indication and the preamble puncturing bandwidth indication jointly indicate one of the following:

the channel bandwidth is 20MHz, and the preamble punching bandwidth is 20 MHz;

the channel bandwidth is 40MHz, and the preamble punching bandwidth is 40 MHz;

the channel bandwidth is 80MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 160MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 240MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 240MHz, and the preamble punching bandwidth is 160 MHz;

the channel bandwidth is 320MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 320MHz and the preamble puncturing bandwidth is 160 MHz.

Therefore, the method provided by the first aspect utilizes the OMI to indicate the preamble puncturing bandwidth, and better balances throughput rate and power consumption/complexity by indicating the preamble puncturing bandwidth OM supported by the responding end in a semi-static manner at the initiating end.

In a second aspect, the present application provides a method for negotiating an operation mode, including: the initiating terminal sends an operation mode indication OMI to the responding terminal, wherein the OMI comprises a content channel mode indication which is used for indicating a content channel mode of a transmission signaling field; after negotiation with the response end, the initiating end performs PPDU transmission with the response end according to the content channel mode indicated by the content channel mode indication.

In one embodiment, the OMI is carried in control information corresponding to the control subfield, and the OMI includes a content channel mode indication indicating a content channel mode for transmitting the signaling field.

In one embodiment, the OMI may also be carried in an EHT operation element of the management frame, the OMI including a content channel mode indication indicating a content channel mode for transmitting the signaling field.

In one embodiment, the control subfield includes a control ID, which is one of the reserved control IDs.

In one embodiment, the content channel mode indication is indicative of one of the following content channel modes:

a first content channel-a second content channel-a first content channel-a second content channel; that is, the 4 content channels alternately carry two different types of signaling information.

A first content channel-a second content channel; that is, after one kind of signaling information is carried in the 4 content channels, another kind of signaling information is carried.

A first content channel-a second content channel-a third content channel-a fourth content channel; that is, the 4 content channels each carry different signaling information in turn.

A first content channel-a first content channel; that is, the 4 content channels carry the same signaling information, or only different forms or mathematical transformations of the same signaling information.

It should be understood that the number of content channels is four for example, and in a specific implementation, the number may be more flexible, and is only an example here.

It can be seen that, the method provided in the second aspect utilizes the OMI to indicate the content channel mode, and supports a more flexible content channel mode, so that the initiating end and the responding end of the OMI negotiation make a clear of the content channel transmission mode in the subsequent PPDU transmission process, so as to prevent the receiving end of the PPDU from parsing the PPDU according to the traditional content channel mode, which results in parsing errors. Furthermore, a more flexible preamble puncturing mode is supported, so that the transmission throughput rate and the transmission rate are improved.

In a third aspect, the present application provides a method for negotiating an operation mode, including: the initiating terminal sends an operation mode indication OMI to the responding terminal, wherein the OMI comprises a signaling field receiving position indication, and the signaling field receiving position indication is used for indicating the receiving position of a signaling field; after negotiation with the response end, the initiating end transmits PPDU to the response end according to the receiving position indicated by the signaling field receiving position indication.

In one embodiment, the OMI is carried in control information corresponding to the control subfield, and the OMI includes a signaling field receiving location indication for indicating a receiving location of the signaling field.

In one embodiment, the OMI may also be carried in an EHT operation element of the management frame, the OMI including a signaling field reception location indication for indicating a reception location of the signaling field.

In one embodiment, the signaling field reception location indication is used to indicate one of the reception locations of the following signaling fields:

the lowest frequency is 80 MHz;

the frequency is lower than 80 MHz;

the frequency is higher than 80 MHz;

the frequency is up to 80 MHz.

Therefore, the method provided by the third aspect indicates the receiving position of the signaling field by using the OMI, and accurately indicates that the response end specifically obtains and analyzes the signaling field on a certain 80MHz channel bandwidth, and does not need to receive and analyze the signaling field from the whole channel bandwidth, thereby improving the efficiency of analyzing the signaling field and further improving the transmission throughput rate and speed.

In a fourth aspect, the present application provides a method for negotiating an operation mode, including: the response end receives an operation mode indication OMI sent by the initiating end, wherein the OMI comprises a preamble puncturing bandwidth indication which is used for indicating a bandwidth range for bearing a signaling field; the signaling field carries at least one part of all signaling information required for demodulating data in the PPDU; after negotiation with the initiating terminal, the responding terminal transmits PPDU to the initiating terminal according to the bandwidth range indicated by the preamble code punching bandwidth indication.

In one embodiment, the responding end replies to the acknowledgement frame after receiving the OMI.

the preamble puncturing transmission bandwidth indication is used for indicating a bandwidth range occupied by a signaling field corresponding to at least one piece of signaling information required for demodulating data in a PPDU sent by a sending end of the PPDU. In other words, the preamble puncturing transmission bandwidth indication is used to indicate a response end of the OMI negotiation, when the response end is used as a sending end of the PPDU, all signaling information required by at least one transmitted part for demodulating data in the PPDU does not exceed a bandwidth range indicated by the preamble puncturing transmission bandwidth indication, and correspondingly, a receiving end of the PPDU can receive or read all signaling information required by at least one transmitted part for demodulating data in the PPDU over the bandwidth range.

In one embodiment, the responding end parses the OMI from the received control information corresponding to the control subfield, and obtains the preamble puncturing bandwidth indication.

In one embodiment, the responding end parses the OMI from the EHT operation element in the received management frame, resulting in a preamble puncturing bandwidth indication indicating a bandwidth range for carrying the signaling field.

the channel bandwidth is 20MHz, and the preamble punching bandwidth is 20 MHz;

the channel bandwidth is 40MHz, and the preamble punching bandwidth is 40 MHz;

the channel bandwidth is 80MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 160MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 240MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 320MHz, and the preamble punching bandwidth is 80 MHz;

As can be seen, the method provided in the fourth aspect utilizes OMI to indicate the preamble puncturing bandwidth, and the method better balances throughput and power consumption/complexity by indicating the preamble puncturing bandwidth OM supported by the responding peer in a semi-static manner at the initiating peer.

In a fifth aspect, the present application provides a method for negotiating an operation mode, including: the response end receives an operation mode indication OMI sent by the initiating end, wherein the OMI comprises a content channel mode indication which is used for indicating a content channel mode of a transmission signaling field; after negotiation with the initiating terminal, the responding terminal transmits PPDU to the initiating terminal according to the content channel mode indicated by the content channel mode indication.

In one embodiment, the responding end parses the OMI from the received control information corresponding to the control subfield, and obtains a content channel mode indication, where the content channel mode indication is used to indicate a content channel mode for transmitting the signaling field.

In one embodiment, the responding end parses the OMI from the EHT operation element in the received management frame, resulting in a content channel mode indication indicating the content channel mode for transmitting the signaling field.

In one embodiment, the control subfield includes a control identifier ID, which is one of the reserved control IDs.

In one embodiment, the content channel mode may indicate one of the following content channel modes:

It can be seen that, the method provided in the fifth aspect indicates the content channel mode by using the OMI, and supports a more flexible content channel mode, so that the initiating end and the responding end of the OMI negotiation make a clear of the content channel transmission mode in the subsequent PPDU transmission process, so as to prevent the receiving end of the PPDU from parsing the PPDU according to the conventional content channel mode, which results in parsing errors. Furthermore, a more flexible preamble puncturing mode is supported, so that the transmission throughput rate and the transmission rate are improved.

In a sixth aspect, the present application provides a method for negotiating an operation mode, including: the response end receives an operation mode indication OMI sent by the sending end, the OMI comprises a signaling field receiving position indication, and the signaling field receiving position indication is used for indicating the receiving position of a signaling field; after negotiation with the initiating terminal, the responding terminal receives the receiving position indicated by the position indication according to the signaling field, and the PPDU is transmitted between the responding terminal and the initiating terminal.

In an embodiment, the responding end parses the OMI from the received control information corresponding to the control subfield, and obtains a signaling field receiving location indication, where the signaling field receiving location indication is used for indicating a receiving location of the signaling field.

In one embodiment, the responding end parses the OMI from the EHT operation element in the received management frame, and obtains a signaling field receiving position indication, which is used for indicating the receiving position of the signaling field.

the lowest frequency is 80 MHz;

the frequency is lower than 80 MHz;

the frequency is higher than 80 MHz;

the frequency is up to 80 MHz.

It can be seen that, the method provided in the sixth aspect indicates the receiving position of the signaling field by using the OMI, and accurately indicates that the response end specifically obtains and analyzes the signaling field in a certain 80MHz channel bandwidth, and does not need to receive and analyze the signaling field from the whole channel bandwidth, thereby improving the efficiency of analyzing the signaling field and further improving the transmission throughput rate and the transmission rate.

In a seventh aspect, the present application provides an initiating terminal having functionality for implementing some or all of the functionality of the initiating terminal in the method example described in the first aspect above. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one possible design, the initiating terminal may include a processing unit and a communication unit in a structure, where the processing unit is configured to support the initiating terminal to execute the corresponding functions in the method. The communication unit is used for supporting communication between the initiating terminal and other equipment. The originating terminal may further comprise a memory unit for coupling with the processing unit and the sending unit, which stores originating terminal program instructions and data.

In one embodiment, the initiating end comprises:

a communication unit, configured to send an operation mode indication OMI, where the OMI includes a preamble puncturing bandwidth indication; the preamble puncturing bandwidth indication is used for indicating a bandwidth range for carrying a signaling field; the signaling field at least carries all signaling information required for demodulating data in a physical layer protocol data unit (PPDU);

a processing unit configured to identify a bandwidth range indicated by the preamble puncturing bandwidth indication;

the communication unit is further configured to perform PPDU transmission with a response end according to the bandwidth range indicated by the preamble puncturing bandwidth indication.

As an example, the processing unit may be a processor, the communication unit may be a transceiver, and the storage unit may be a memory.

In one embodiment, the initiating end comprises:

a transceiver to transmit an operation mode indication, OMI, the OMI including a preamble puncturing bandwidth indication; the preamble puncturing bandwidth indication is used for indicating a bandwidth range for carrying a signaling field; the signaling field at least carries all signaling information required for demodulating data in a physical layer protocol data unit (PPDU);

a processor configured to identify a bandwidth range indicated by the preamble puncturing bandwidth indication;

the transceiver is further configured to perform PPDU transmission with a responding end according to the bandwidth range indicated by the preamble puncturing bandwidth indication.

the channel bandwidth is 20MHz, and the preamble punching bandwidth is 20 MHz;

the channel bandwidth is 40MHz, and the preamble punching bandwidth is 40 MHz;

the channel bandwidth is 80MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 160MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 240MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 320MHz, and the preamble punching bandwidth is 80 MHz;

As can be seen, the initiating terminal provided in the seventh aspect indicates the preamble puncturing bandwidth by using the OMI, so that the initiating terminal can indicate the preamble puncturing bandwidth OM supported by the responding terminal in a semi-static manner, and the throughput and the power consumption/complexity are better weighed.

In an eighth aspect, the present application provides an initiating terminal having functionality for implementing some or all of the functionality of the initiating terminal in the method example described in the second aspect above. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one embodiment, the initiating end comprises:

a communication unit for sending an operation mode indication, OMI, the OMI including a content channel mode indication; the content channel mode indication indicates a content channel mode for transmitting a signaling field;

a processing unit for identifying a content channel mode indicated by the content channel mode indication;

the communication unit is further configured to perform PPDU transmission with a response end according to the content channel mode indicated by the content channel mode indication.

In one embodiment, the initiating end comprises:

a transceiver for transmitting an operation mode indication, OMI, the OMI including a content channel mode indication; the content channel mode indication indicates a content channel mode for transmitting a signaling field;

a processor configured to identify a content channel mode indicated by the content channel mode indication;

the transceiver is further configured to perform PPDU transmission with a response end according to the content channel mode indicated by the content channel mode indication.

It can be seen that the originating terminal provided in the eighth aspect indicates the content channel mode by using the OMI, and supports a more flexible content channel mode, so that the originating terminal and the responding terminal negotiated by the OMI make a clear of the content channel transmission mode in the subsequent PPDU transmission process, so as to prevent the receiving terminal of the PPDU from analyzing the PPDU according to the conventional content channel mode, which results in an analysis error. Furthermore, a more flexible preamble puncturing mode is supported, so that the transmission throughput rate and the transmission rate are improved.

In a ninth aspect, the present application provides an initiating terminal having functionality for implementing some or all of the functionality of the initiating terminal in the method example described in the third aspect above. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one embodiment, the initiating end comprises:

a communication unit, configured to send an operation mode indication OMI, where the OMI includes a signaling field receiving location indication; the signaling field receiving position indication is used for indicating the receiving position of the signaling field;

a processing unit configured to identify a receiving location indicated by the signaling field receiving location indication;

the communication unit is further configured to perform PPDU transmission with the response end according to the receiving location indicated by the signaling field receiving location indication.

In one embodiment, the initiating end comprises:

a transceiver for transmitting an operation mode indication, OMI, the OMI including a signaling field receive location indication; the signaling field receiving position indication is used for indicating the receiving position of the signaling field;

a processor configured to identify a receive location indicated by the signaling field receive location indication;

the transceiver is further configured to perform PPDU transmission with a response end according to the receiving location indicated by the signaling field receiving location indication.

the lowest frequency is 80 MHz;

the frequency is lower than 80 MHz;

the frequency is higher than 80 MHz;

the frequency is up to 80 MHz.

It can be seen that the initiating terminal provided in the ninth aspect indicates the receiving position of the signaling field by using the OMI, and accurately indicates that the responding terminal specifically obtains and analyzes the signaling field on a certain 80MHz channel bandwidth, and does not need to receive and analyze the signaling field from the whole channel bandwidth, thereby improving the efficiency of analyzing the signaling field and further improving the transmission throughput rate and speed.

In a tenth aspect, the present application provides a responding end having a function of implementing part or all of the initiating end in the method example described in the fourth aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one possible design, the responding end may include a processing unit and a communication unit in the structure, and the processing unit is configured to support the responding end to execute the corresponding functions in the method. The communication unit is used for supporting communication between the response end and other equipment. The responder may also include a memory unit, coupled to the processing unit and the transmitting unit, that stores initiator program instructions and data.

In one embodiment, the responding end includes:

a communication unit configured to receive an Operation Mode Indication (OMI), the OMI including a preamble puncturing bandwidth indication; the preamble puncturing bandwidth indication is used for indicating a bandwidth range for carrying a signaling field; the signaling field at least carries all signaling information required for demodulating data in a physical layer protocol data unit (PPDU);

the communication unit is further configured to perform PPDU transmission with an originating end according to the bandwidth range indicated by the preamble puncturing bandwidth indication.

In one embodiment, the responding end includes:

a transceiver to receive an operation mode indication, OMI, the OMI including a preamble puncturing bandwidth indication; the preamble puncturing bandwidth indication is used for indicating a bandwidth range for carrying a signaling field; the signaling field at least carries all signaling information required for demodulating data in a physical layer protocol data unit (PPDU);

the transceiver is further configured to perform PPDU transmission with an originating end according to a bandwidth range indicated by the preamble puncturing bandwidth indication.

the channel bandwidth is 20MHz, and the preamble punching bandwidth is 20 MHz;

the channel bandwidth is 40MHz, and the preamble punching bandwidth is 40 MHz;

the channel bandwidth is 80MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 160MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 240MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 320MHz, and the preamble punching bandwidth is 80 MHz;

As can be seen, the response end provided in the tenth aspect negotiates the preamble puncturing bandwidth through the OMI, so that the initiation end indicates the preamble puncturing bandwidth OM supported by the response end in a semi-static manner, and throughput and power consumption/complexity are better balanced.

In an eleventh aspect, the present application provides a responding end having a function of implementing part or all of the initiating end in the method example described in the fifth aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one embodiment, the responding end includes:

a communication unit for receiving an operation mode indication, OMI, the OMI including a content channel mode indication; the content channel mode indication indicates a content channel mode for transmitting a signaling field;

the communication unit is further configured to perform PPDU transmission with the originating terminal according to the content channel mode indicated by the content channel mode indication.

In one embodiment, the responding end includes:

a transceiver for receiving an operation mode indication, OMI, the OMI including a content channel mode indication; the content channel mode indication indicates a content channel mode for transmitting a signaling field;

the transceiver is further configured to perform PPDU transmission with the originating terminal according to the content channel mode indicated by the content channel mode indication.

It can be seen that the response end provided in the eleventh aspect negotiates a content channel mode through the OMI, and supports a more flexible content channel mode, so that the initiating end and the response end of the OMI negotiation make a clear of a content channel transmission mode in a subsequent PPDU transmission process, so as to prevent a receiving end of the PPDU from parsing the PPDU according to a conventional content channel mode, which results in a parsing error. Furthermore, a more flexible preamble puncturing mode is supported, so that the transmission throughput rate and the transmission rate are improved.

In a twelfth aspect, the present application provides a responding end having a function of implementing part or all of the initiating end in the method example described in the above sixth aspect. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one embodiment, the responding end includes:

a transceiver to receive an operation mode indication, OMI, the OMI including a signaling field receive location indication; the signaling field receiving position indication is used for indicating the receiving position of the signaling field;

the transceiver is further configured to perform PPDU transmission with the originating terminal according to the receiving location indicated by the signaling field receiving location indication.

In one embodiment, the responding end includes:

the lowest frequency is 80 MHz;

the frequency is lower than 80 MHz;

the frequency is higher than 80 MHz;

the frequency is up to 80 MHz.

It can be seen that, the response end provided in the twelfth aspect negotiates the receiving position of the signaling field through the OMI, so that the response end can obtain and analyze the signaling field in a specific 80MHz channel bandwidth without receiving and analyzing the signaling field from the entire channel bandwidth, thereby improving the efficiency of analyzing the signaling field and further improving the transmission throughput and the transmission rate.

In a thirteenth aspect, the present application provides a chip system, which includes a processor and an interface, for enabling an initiating terminal to implement the functions referred to in the first aspect, for example, to determine or process at least one of data and information referred to in the above method.

In one possible design, the system-on-chip further includes a memory for storing terminal device program instructions and data. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In one embodiment, the chip system includes: at least one processor and an interface;

an interface to output an operation mode indication, OMI, the OMI including a preamble puncture bandwidth indication; the preamble puncturing bandwidth indication is used for indicating a bandwidth range for carrying a signaling field; the signaling field at least carries all signaling information required for demodulating data in a physical layer protocol data unit (PPDU);

and the interface is further configured to perform PPDU transmission with a response end according to the bandwidth range indicated by the preamble puncturing bandwidth indication.

In a fourteenth aspect, the present application provides a chip system, which includes a processor and an interface, and is used to enable an originating terminal to implement the functions related to the second aspect, for example, to determine or process at least one of data and information related to the method.

an interface for outputting an operation mode indication, OMI, the OMI including a content channel mode indication; the content channel mode indication indicates a content channel mode for transmitting a signaling field;

the interface is further configured to perform PPDU transmission with a response end according to the content channel mode indicated by the content channel mode indication.

In a fifteenth aspect, the present application provides a chip system, which includes a processor and an interface, for enabling an originating terminal to implement the functions recited in the third aspect, e.g., determining or processing at least one of data and information recited in the above-mentioned methods.

an interface for outputting an operation mode indication, OMI, the OMI comprising a signaling field receive location indication; the signaling field receiving position indication is used for indicating the receiving position of the signaling field;

the interface is further configured to perform PPDU transmission with the response end according to the receiving location indicated by the signaling field receiving location indication.

In a sixteenth aspect, the present application provides a chip system, which includes a processor and an interface, and is configured to enable a responding end to implement the functions related to the fourth aspect, for example, to determine or process at least one of data and information related to the method.

an interface to input an operation mode indication, OMI, the OMI including a preamble puncture bandwidth indication; the preamble puncturing bandwidth indication is used for indicating a bandwidth range for carrying a signaling field; the signaling field at least carries all signaling information required for demodulating data in a physical layer protocol data unit (PPDU);

optionally, the interface is further configured to output an acknowledgement frame;

and the interface is further configured to perform PPDU transmission with the initiating end according to the bandwidth range indicated by the preamble puncturing bandwidth indication.

In a seventeenth aspect, the present application provides a chip system, which includes a processor and an interface, and is configured to enable a responding end to implement the function according to the fifth aspect, for example, to determine or process at least one of data and information related to the method.

an interface for inputting an operation mode indication, OMI, the OMI including a content channel mode indication; the content channel mode indication indicates a content channel mode for transmitting a signaling field;

the interface is further configured to perform PPDU transmission with the originating terminal according to the content channel mode indicated by the content channel mode indication.

In an eighteenth aspect, the present application provides a chip system, which includes a processor and an interface, and is configured to enable a responding end to implement the functions related to the sixth aspect, for example, to determine or process at least one of data and information related to the above method.

an interface for inputting an operation mode indication, OMI, the OMI including a signaling field to receive a location indication; the signaling field receiving position indication is used for indicating the receiving position of the signaling field;

the interface is further configured to perform PPDU transmission with the originating terminal according to the receiving location indicated by the signaling field receiving location indication.

In a nineteenth aspect, the present application provides a computer readable storage medium for storing computer software instructions for use by the initiating terminal, comprising a program for performing the first, second and third aspects of the method.

In a twentieth aspect, the present application provides a computer readable storage medium for storing computer software instructions for the responding end, comprising a program for executing the fourth, fifth and sixth aspects of the method.

In a twenty-first aspect, the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first, second and third aspects described above.

In a twenty-second aspect, the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the fourth, fifth and sixth aspects described above.

In a twenty-third aspect, the present application provides a functional entity for performing the method of any of the first to sixth aspects described above.

Drawings

Fig. 1 is a schematic diagram of a network structure provided in an embodiment of the present application;

fig. 2 is a schematic diagram of a communication device structure according to an embodiment of the present application;

fig. 3 is a schematic diagram of a chip structure provided in an embodiment of the present application;

fig. 4 is a schematic diagram of a MAC frame format according to an embodiment of the present application;

fig. 5 is a schematic diagram of a frame structure of an aggregation control subfield according to an embodiment of the present application;

fig. 6 is a schematic diagram of a frame structure of an OM control subfield according to an embodiment of the present application;

fig. 7 is a schematic diagram of a frame structure of a PPDU according to an embodiment of the present application;

fig. 8 is a flowchart illustrating a preamble puncturing bandwidth OM negotiation method according to an embodiment of the present application;

fig. 9 is a schematic diagram of an a-control subfield frame structure provided in an embodiment of the present application;

fig. 10 is a schematic diagram of a management frame structure provided in an embodiment of the present application;

fig. 11 is a schematic diagram of a 160MHz channel distribution provided in an embodiment of the present application;

fig. 12 is a flowchart illustrating a channel bandwidth OM negotiation method according to an embodiment of the present application;

fig. 13 is a schematic diagram of an a-control subfield frame structure provided in an embodiment of the present application;

fig. 14 is a schematic diagram of a management frame structure provided in an embodiment of the present application;

fig. 15 is a flowchart illustrating a joint negotiation method of a channel bandwidth OM and a preamble puncturing bandwidth OM according to an embodiment of the present application;

fig. 16 is a schematic diagram of an a-control subfield frame structure provided in an embodiment of the present application;

fig. 17 is a schematic diagram of a management frame structure according to an embodiment of the present application;

fig. 18 is a flowchart illustrating a content channel mode OM negotiation method according to an embodiment of the present application;

fig. 19 is a schematic diagram of an a-control subfield frame structure provided in an embodiment of the present application;

fig. 20 is a schematic diagram of a management frame structure provided in an embodiment of the present application;

fig. 21 is a flowchart illustrating a method for negotiating a receiving location OM of a signaling field according to an embodiment of the present application;

fig. 22 is a schematic flowchart of a joint negotiation method of a content channel mode OM and a signaling field receiving position OM according to an embodiment of the present application;

fig. 23 is an exemplary diagram illustrating a joint negotiation between a content channel mode OM and a signaling field receiving position OM according to an embodiment of the present application;

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

Fig. 1 is a diagram illustrating a network structure to which the OM negotiation method described in the present application is applicable.

Fig. 1 is a schematic diagram of a network structure provided in an embodiment of the present application, where the network structure may include one or more Access Point (AP) class stations and one or more non-AP class stations (non-AP STAs). For convenience of description, a station of an access point type is referred to herein as an Access Point (AP), and a station of a non-access point type is referred to herein as a Station (STA).

In this embodiment of the application, both the AP and the STA may serve as an initiating end and a responding end of an OM negotiation, where the initiating end and the responding end of the OM negotiation are for an OM negotiation process, and are called initiating ends for actively initiating the OM negotiation and response ends for responding the OM negotiation. The sending end and the receiving end are for the transmission process, the party sending data is the sending end, and the party receiving data is the receiving end. The initiating end of the OM negotiation can be a sending end of communication transmission and can also be a receiving end of the communication transmission; the response end of OM negotiation may be a sending end of communication transmission, and may also be a response end of communication transmission.

The description will be made taking as an example a network structure including two APs (AP1, AP2) and two stations (STA1, STA2) in fig. 1.

For example, in the OM negotiation process, if the AP serves as an initiating end of the OM negotiation, the STA1 or the STA2 serves as a responding end of the OM negotiation; or

The AP is used as an initiating end of OM negotiation, and the other AP is used as a responding end of the OM negotiation; or

STA1 serves as the initiator of OM negotiation and STA2 serves as the responder of OM negotiation.

As for the communication transmission process, both the initiating end and the responding end of the OM negotiation can be used as the sending end of the communication transmission, and can also be used as the receiving end of the communication transmission, which is not limited in the present application.

In the embodiment of the present application, the access point may be an access point where a terminal device (e.g., a mobile phone) enters a wired (or wireless) network, and is mainly deployed in a home, a building, and a garden, and a typical coverage radius is several tens of meters to hundreds of meters, and certainly, may also be deployed outdoors. The access point is equivalent to a bridge connected with a network and a wireless network, and is mainly used for connecting various wireless network clients together and then connecting the wireless network to the Ethernet. Specifically, the access point may be a terminal device (e.g., a mobile phone) or a network device (e.g., a router) with a wireless-fidelity (WiFi) chip. The access point may be a device supporting 802.11be system. The access point may also be a device supporting multiple Wireless Local Area Network (WLAN) systems of 802.11 families, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11 a. The access point in the application can be an HE-AP or an EHT-AP, and can also be an access point suitable for a future WiFi standard.

The station can be a wireless communication chip, a wireless sensor or a wireless communication terminal, and can also be called a user. For example, the website may be a mobile phone supporting a WiFi communication function, a tablet computer supporting a WiFi communication function, a set top box supporting a WiFi communication function, a smart television supporting a WiFi communication function, a smart wearable device supporting a WiFi communication function, a vehicle-mounted communication device supporting a WiFi communication function, a computer supporting a WiFi communication function, and the like. Alternatively, the station may support the 802.11be system. The station may also support multiple WLAN systems of 802.11 families, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11 a.

The access point in the embodiment of the application can be an HE-STA or an EHT-STA, and can also be an STA which is suitable for a WiFi standard of a future generation.

For example, the access point and the station may be devices applied to a car networking, internet of things nodes, sensors, etc. in an internet of things (IoT), smart cameras in smart homes, smart remote controllers, smart water meter meters, sensors in smart cities, etc.

It should be noted that the AP station and the non-AP station in this application may also be a wireless communication device supporting multiple links for parallel transmission, for example, referred to as a multi-link device (multi-link device) or a multi-band device (multi-band device). The multi-link device has higher transmission efficiency and higher throughput than a device supporting only single link transmission.

The multilink device includes one or more subordinate stations STA (aftertrained STA), which is a logical station and can operate on a link.

Although the embodiments of the present application are described primarily with reference to a network that deploys IEEE802.11, those skilled in the art will readily appreciate that the various aspects of the present application may be extended to other networks that employ various standards or protocols, such as BLUETOOTH, high performance wireless LAN (HIPERLAN), a wireless standard similar to the IEEE802.11 standard, used primarily in europe, and Wide Area Networks (WAN), Wireless Local Area Networks (WLAN), Personal Area Networks (PAN), or other now known or later developed networks. Thus, the various aspects provided herein may be applicable to any suitable wireless network, regardless of the coverage and radio access protocol used.

The initiating end and the responding end of the OM negotiation involved in the embodiment of the present application may also be collectively referred to as a communication device, which may include a hardware structure and a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure and a software module. Some of the above functions may be implemented by a hardware structure, a software module, or a hardware structure and a software module.

Fig. 2 is a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 2, the communication device 200 may include: a processor 201, a transceiver 205, and optionally a memory 202.

The transceiver 205 may be referred to as a transceiving unit, a transceiver, or a transceiving circuit, etc. for implementing transceiving functions. The transceiver 205 may include a receiver and a transmitter, and the receiver may be referred to as a receiver or a receiving circuit, etc. for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmission circuit, etc. for implementing the transmission function.

The memory 202 may have stored therein computer programs or software codes or instructions 204, which computer programs or software codes or instructions 204 may also be referred to as firmware. The processor 201 may control the MAC layer and the PHY layer by running a computer program or software code or instructions 203 therein, or by calling a computer program or software code or instructions 204 stored in the memory 202, to implement the OM negotiation method provided by the embodiments described below in the present application. The processor 201 may be a Central Processing Unit (CPU), and the memory 302 may be, for example, a read-only memory (ROM) or a Random Access Memory (RAM).

The processor 201 and transceiver 205 described herein may be implemented on an Integrated Circuit (IC), an analog IC, a Radio Frequency Integrated Circuit (RFIC), a mixed signal IC, an Application Specific Integrated Circuit (ASIC), a Printed Circuit Board (PCB), an electronic device, or the like.

The communication device 200 may further include an antenna 206, and the modules included in the communication device 200 are only for illustration and are not limited in this application.

As described above, the communication apparatus in the above description of the embodiment may be an access point or a station, but the scope of the communication apparatus described in the present application is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 2. The communication means may be a stand-alone device or may be part of a larger device. For example, the communication device may be implemented in the form of:

(1) a stand-alone integrated circuit IC, or chip, or system-on-chip or subsystem; (2) a set of one or more ICs, which optionally may also include storage components for storing data, instructions; (3) a module that may be embedded within other devices; (4) receivers, smart terminals, wireless devices, handsets, mobile units, in-vehicle devices, cloud devices, artificial intelligence devices, and the like; (5) others, and so forth.

For the case that the implementation form of the communication device is a chip or a chip system, the schematic structural diagram of the chip shown in fig. 3 can be referred to. The chip shown in fig. 3 comprises a processor 301 and an interface 302. The number of the processors 301 may be one or more, and the number of the interfaces 302 may be more. Optionally, the chip or system of chips may include a memory 303.

It should be understood that the initiating end and the responding end of OM negotiation in the present application may be Access Point (AP) type stations, and may also be non-access point type stations (non-AP STA); an access point or a station in the present application may be a multi-link device (MLD).

The embodiments of the present application do not limit the scope and applicability of the claims. Those skilled in the art may adapt the function and arrangement of elements involved in the present application or omit, substitute, or add various procedures or components as appropriate without departing from the scope of the embodiments of the present application.

Method of negotiating an operation mode the terms "first" and "second", etc. in the description and drawings of the present application are used to distinguish different objects or to distinguish different processes on the same object, and are not used to describe a specific order of objects.

"at least one" means one or more,

"plurality" means two or more.

The character "/" generally indicates that the former and latter associated objects are in an "or" relationship, e.g., a/B may represent a or B.

Furthermore, the terms "including" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the description and drawings of the present application, "of", "corresponding" (and "corresponding") and "corresponding" (may be sometimes used in combination, and it should be noted that the intended meanings are consistent when the differences are not emphasized.

For ease of understanding, the relevant terms referred to herein will be briefly described below.

1. Media access control protocol data unit (MPDU)

In a wireless local area network, an AP and an STA transfer control signaling, management signaling, or data through an MPDU, or simply a Medium Access Control (MAC) frame. The MAC frame format in the 802.11 standard is shown in fig. 4, where an MPDU includes a frame header, a frame body, and a frame check sequence, where: the frame header comprises frame control, corresponding address information, sequence control information and the like; the frame body bears data or management and control information transmitted by an upper layer; frame check is used to check whether the MPDU is transmitted correctly.

2. An aggregation control subfield (A-control)

In the high throughput control field of the MAC header, the sender may transmit control information. Currently, efficient variants of the high-throughput control field include high-throughput variants, very high-throughput variants, and efficient variants, with the a-control subfield being carried in the efficient variants. The a-control subfield carries one or more control information using a structure of one or more control identifiers plus control information, the frame structure of which is designed as shown in fig. 5, wherein the control identifiers are used to indicate the type of control information.

3. Operation Mode Indication (OMI)

The OMI initiating terminal can negotiate an operation mode with the OMI responding terminal, so that the initiating terminal and the responding terminal can more flexibly use different operation modes for communication according to different channel environments and conditions. For example, OMI regarding channel bandwidth is designed in the 802.11ax standard, and the main flow is as follows: an OMI initiating end sends a MAC frame with an OM control subfield to an OMI responding end, wherein the frame structure of the OM control subfield is shown in FIG. 6, the OM control subfield is carried in an A-control subfield, and the channel bandwidth is used for indicating the channel bandwidth of a PPDU (direct digital channel) supported by the OMI initiating end to be sent or received; after receiving the MAC frame with the OMI control subfield sent by the OMI initiating end, the OMI responding end replies a confirmation frame; and the subsequent two parties communicate according to the negotiated OM.

4. Physical layer protocol data unit (PPDU)

Referring to fig. 7, the PPDU includes a Legacy Short Training Field (L-STF), a Legacy Long Training Field (L-LTF), a Legacy Signal Field (L-SIG), a repeated Legacy signaling Field (RL-SIG), a general signaling Field U-SIG (U-SIG), an ultra high throughput signaling Field or an ultra high throughput signaling Field (EHT-SIG), an EHT Short Training Field (EHT-STF), an EHT Long Training Field (EHT-LTF), and data (data). Wherein, the L-STF, the L-LTF, the L-SIG, the RL-SIG, the U-SIG, the EHT-STF and the EHT-LTF are partial structures in a preamble (preamble) of the PPDU.

The L-STF, L-LTF, L-SIG may be understood as a legacy preamble field for ensuring coexistence of a new device with a legacy device. The RL-SIG serves to enhance the reliability of the legacy signaling field.

U-SIG and EHT-SIG are signaling fields. The U-SIG is used to carry some common information, such as information indicating the version of the PPDU, information indicating uplink/downlink, information indicating the frequency domain bandwidth of the PPDU, and puncturing indication information. The EHT-SIG includes information indicating resource allocation, information indicating data demodulation, and the like.

It should be noted that, in the embodiment of the present application, a field in a PPDU in an 802.11be scenario is illustrated. Each field in the PPDU mentioned in the embodiment of the present application is not limited to a field related to 802.11be, and each field in the PPDU mentioned in the embodiment of the present application may also be a field related to a standard version after 802.11 be.

5. Content Channel (CC)

In the 802.11ax standard, high efficiency signaling B (HE-SIG-B) in PPDU transmits signaling information in a unit of 20MHz bandwidth. When the bandwidth is greater than 20MHz, in order to simultaneously consider efficiency and complexity of the receiving end, two CCs are introduced, namely CC1 and CC2, and the receiving end needs to simultaneously receive at least one CC1 and at least one CC2 to obtain signaling messages required for demodulating subsequent data. For example, when the bandwidth is 40MHz, the 20MHz with the lowest frequency and the 20MHz with the highest frequency of the HE-SIG-B may sequentially carry information of the CC1 and the CC 2; when the bandwidth is 80MHz, the HE-SIG-B carries the information of the CC1, the CC2, the CC1 and the CC2 in sequence from the lowest frequency to the highest frequency of 20 Mhz; when the bandwidth is 160MHz, the HE-SIG-B carries the information of CC1, CC2, CC1, CC2, CC1, CC2, CC1 and CC2 in sequence from the lowest frequency to the highest frequency of 20 Mhz.

In the 802.11be and later standards, the EHT-SIG in the PPDU may continue to transmit signaling information in 20Mhz bandwidth units, or may transmit signaling information in bandwidth units of other granularities. In addition, the EHT-SIG may continue to transmit signaling information in the two CC mode, may also transmit signaling information in the four CC mode, may also transmit signaling information in the 1 CC mode, or may also transmit the same or similar signaling information on each CC in multiple CCs.

The application relates to a method of negotiation of an operation mode and a corresponding apparatus. Specifically, in one implementation manner, the present application implements a negotiation method of an Operation Mode (OM) of a preamble puncturing bandwidth and a corresponding apparatus; in another implementation manner, the present application implements a negotiation method and a corresponding apparatus for an operation mode of a channel bandwidth; in another implementation manner, the present application implements a joint negotiation method and a corresponding apparatus for operation modes of a channel bandwidth and a preamble puncturing bandwidth; in yet another implementation manner, the present application implements a method and a corresponding apparatus for negotiating an operation mode of a Content Channel (CC) mode; in another implementation manner, the present application implements a method and a corresponding apparatus for negotiating an operation mode of a signaling field receiving location; in another implementation, the present application implements a negotiation method and a corresponding apparatus for combining a content channel mode and an operation mode of a signaling field receiving location.

It should be understood that, in the embodiment of the present application, an initiating end and a responding end of OM negotiation are referred to as an initiating end and a responding end, which are referred to as an responding end for actively initiating OM negotiation. The sending end and the receiving end are for the transmission process, the party sending data is the sending end, and the party receiving data is the receiving end. The initiating end of the OM negotiation can be a sending end of communication transmission and can also be a receiving end of the communication transmission; the response end of OM negotiation may be a sending end of communication transmission, and may also be a response end of communication transmission.

Example one

In this embodiment, with reference to fig. 2 and fig. 8, a negotiation technique of a preamble puncturing bandwidth OM is mainly described, which better balances throughput and power consumption/complexity by indicating, by an initiator, a preamble puncturing bandwidth OM supported by a responder in a semi-static manner.

Referring to fig. 2 and 8, the negotiation technique of the preamble puncturing bandwidth OM provided by the present application includes:

step 800, an initiating terminal sends OMI to a responding terminal, wherein the OMI comprises a lead code punching bandwidth indication; the preamble puncturing bandwidth indication is used for indicating a bandwidth range for bearing a signaling field; the signaling field carries at least one part of all signaling information required for demodulating data in the PPDU; specifically, step 800 may be performed by transceiver 205 as in fig. 2;

for example, the signaling field is divided into two content channels carried on 80Mhz with 20Mhz as a unit, and the mode is CC1-CC2-CC1-CC 2; then CC1 and CC2 carried on the main 40Mhz carry a copy of all signaling information needed for demodulating data in PPDU, and an initiating end of OMI negotiation may send a preamble puncturing bandwidth indication to a responding end, indicating that a bandwidth range carrying a signaling field is 40Mhz, or of course, indicating that a bandwidth range carrying a signaling field is 80Mhz, where 80Mhz carries two copies of all signaling information needed for demodulating data in PPDU.

Step 810, the response end receives the OMI and analyzes the preamble punching bandwidth indication from the OMI; optionally, the response end replies to the acknowledgement frame; specifically, step 810 may receive the OMI or reply to the acknowledgement frame through the transceiver 205 as in fig. 2, parse the OMI and obtain the preamble puncturing bandwidth indication through the processor 201 as in fig. 2;

step 820, the initiating end and the responding end transmit PPDU according to the OMI; in particular, step 820 may be performed by transceiver 205 of fig. 2.

It should be noted that the preamble puncturing reception bandwidth indication is used to indicate a bandwidth range for receiving the signaling field when the receiving end transmits the PPDU, and refers to a signaling field that can receive or read at least one piece of all signaling information required for demodulating data in the PPDU over the bandwidth range, where information of the signaling field is not excluded and is carried over other bandwidth ranges besides the bandwidth range. Information of signaling fields corresponding to CC1 and CC2 may be received, for example, on the master 40 Mhz; but it is not excluded that in addition to this bandwidth range of 40Mhz, also information of the signaling field of the duplicate backup may be received on other bandwidth ranges, e.g. CC1 and CC2 may be received on 40Mhz when CC1 and CC2 are repeatedly sent from 40 Mhz.

One piece of all signaling information needed for demodulating data in the PPDU is referred to as CC1+ CC2, and for other content channel modes, such as CC1-CC2-CC3-CC4, CC1+ CC2+ CC3+ CC4 calculates one piece of all signaling information needed for demodulating data in the PPDU; for CC1-CC1-CC1-CC1, one CC1 calculates one share of all signaling information needed to demodulate the data in the PPDU.

Similarly, the preamble puncturing transmission bandwidth indication is used to indicate a bandwidth range for transmitting a signaling field when the transmission end is used to transmit a PPDU, and means that at least one signaling field corresponding to all signaling information required for demodulating data in the PPDU is transmitted over the bandwidth range, for example, contents of the signaling fields corresponding to CC1 and CC2 are transmitted over the main 40 Mhz; that is, the preamble puncturing transmission bandwidth indication is used to indicate an initiating end of the OMI negotiation, when the receiving end is used as a transmitting end of the PPDU, all signaling information required for demodulating data in the PPDU will not exceed a bandwidth range 40Mhz indicated by the preamble puncturing transmission bandwidth indication, and correspondingly, a receiving end of the PPDU may receive or read all information association required for demodulating data in the PPDU over the bandwidth range 40 Mhz; but not exclusively, the content of the signaling field of the duplicate backup is sent on other bandwidth ranges, for example, repeatedly sending CC1 and CC2 from 40 Mhz; or to send the content of the signaling field that needs to be received by other responding end on other bandwidth range.

Specifically, the preamble puncturing bandwidth indication includes at least one of a preamble puncturing reception bandwidth indication and a preamble puncturing transmission bandwidth indication; the preamble-punched reception bandwidth indication is used for indicating the bandwidth range of a signaling field which is used for a receiving end of a PPDU to read all signaling information required for demodulating data in the PPDU; the preamble punch transmission bandwidth indication is used for indicating the bandwidth range occupied by the signaling fields corresponding to all signaling information required by the transmitting end of the PPDU to transmit and demodulate data in the PPDU. That is, after the initiator and the responder end interaction, neither the bandwidth range of the signaling field received by the receiver nor the bandwidth range of the signaling field sent by the sender can exceed the negotiated preamble puncturing reception bandwidth or preamble puncturing transmission bandwidth. The signaling field here includes, but is not limited to, an EHT-SIG field.

In one embodiment, the preamble puncturing reception bandwidth indication is 2 bits, which may be used to indicate any one of bandwidths of 40MHz, 80MHz, and 160 MHz; also, the preamble puncturing transmission bandwidth indication is 2 bits, and may be used to indicate any one of bandwidths of 40MHz, 80MHz, and 160 MHz. As shown in table 1, when the index indicated by the preamble puncturing reception bandwidth is 00, the corresponding preamble puncturing reception bandwidth is 40MHz, which indicates that the bandwidth range of the signaling field read by the receiving end required for transmitting PPDU should not exceed 40 MHz; when the index of the preamble code punching receiving bandwidth indication is 01, the corresponding preamble code punching receiving bandwidth is 80MHz, which indicates that the bandwidth range of a signaling field read by a receiving end required by PPDU transmission does not exceed 80 MHz; when the index of the preamble code punching receiving bandwidth indication is 10, the corresponding preamble code punching receiving bandwidth is 160MHz, which indicates that the bandwidth range of a signaling field read by a receiving end required by PPDU transmission does not exceed 160 MHz; when the index of the preamble puncture reception bandwidth indication is 11, the temporary reservation is made. The indication mode of the preamble puncturing sending field is similar to the indication mode of the preamble puncturing receiving field, and is not described again. It should be understood that table 1 is only an illustration of correspondence between indexes and bandwidths indicated by the indexes, and other combinations or variations of the indication modes provided by the embodiments of the present application are not illustrated here.

Table 1: preamble puncturing reception/transmission bandwidth indication

In another embodiment, the preamble puncturing reception bandwidth is indicated as 1 bit, and may be used to indicate any one of bandwidths of 80MHz and 160 MHz; also, the preamble puncture transmission bandwidth indication is 1 bit, and may be used to indicate any one of bandwidths of 80MHz and 160 MHz. As shown in table 2, when the index indicated by the preamble puncturing reception bandwidth is 0, the corresponding preamble puncturing reception bandwidth is 80MHz, which indicates that the bandwidth range of the signaling field read by the receiving end required for transmitting PPDU should not exceed 80 MHz; when the index of the preamble puncturing receiving bandwidth indication is 1, the corresponding preamble puncturing receiving bandwidth is 160MHz, which indicates that the bandwidth range of a signaling field read by a receiving end required for transmitting PPDU must not exceed 160 MHz. The indication mode of the preamble puncturing sending field is similar to the indication mode of the preamble puncturing receiving field, and is not described again. Compared with the 2-bit indication mode, the indication mode only needs 1 bit, and the indication overhead is reduced. It should be understood that table 2 is only an illustration of correspondence between indexes and bandwidths indicated by the indexes, and other combinations or variations of the indication modes provided by the embodiments of the present application are not illustrated here.

Table 2: preamble puncturing reception/transmission bandwidth indication

In one embodiment, the OMI including the preamble puncturing bandwidth indication is carried in an aggregation Control (a-Control) subfield, as shown in fig. 9, the a-Control subfield includes at least one Control subfield (denoted as Control subfield 2 in the figure) for carrying preamble puncturing bandwidth indication information, and specifically, the Control subfield includes a Control Identifier (ID) and Control information. Wherein the control ID may be one of reserved control IDs, such as one of control ID values 7-14 in table 3, for example, a subfield corresponding to the control ID value of 10 is defined as the preamble puncturing bandwidth indication; the control information includes at least one of a preamble puncture reception bandwidth indication and a preamble puncture transmission bandwidth indication.

In one embodiment, the OMI including the preamble puncturing bandwidth indication is carried in a management frame, as shown in fig. 10, specifically in the EHT operation element. In this embodiment, the initiating peer may notify the OMI for multiple responding peers together in a broadcast format.

Table 3: control identifier subfield value Control ID subfield values

The next generation standard (e.g., 802.11be) supports a more flexible preamble puncturing manner, and compared with the bandwidth and preamble puncturing indication in the 802.11ax standard, the 802.11be standard allows a receiving end of a PPDU to acquire a content channel 1(content channel 1, CC1) and a content channel 2(content channel 2, CC2) through a primary 160MHz (P160 ) channel corresponding to the receiving end. Table 4 shows a bandwidth indication field in the 802.11ax standard, which only supports the case of acquiring CC1 and CC2 from P80 at most, so in some scenarios, the indication mode cannot support preamble puncturing, as shown in fig. 11, when channel 2 and channel 4 cannot be used due to interference, since the 802.11ax standard does not support a transmission mode in which channel 2 and channel 4 are punctured simultaneously in the main 80MHz channel, in this scenario, only the transmission mode of 20MHz can be returned, and the throughput and rate of transmission are reduced.

Table 4: bandwidth indication field in the 802.11ax standard

In contrast, table 5 shows a possible bandwidth indication field in the 802.11be standard, which indicates more various and flexible bandwidth forms, for example, in the case of

bandwidth fields

0, 1, 2, 3, 4, 6, 8, 10, the entire channel bandwidth is not punctured or punctured to the first 40Mhz, so that CC1 and CC2 are received only in the first 40 Mhz; at this time, the bandwidth range indicated by the preamble puncturing reception/transmission bandwidth indication may be 40Mhz or more.

The case that the bandwidth field is indicated by 5, 7, 9 requires a mode of 80MHz preamble puncturing bandwidth; at this time, the bandwidth range indicated by the preamble puncturing reception/transmission bandwidth indication may be 80Mhz or more.

The cases indicated by the bandwidth fields 11, 12, 13, 14 require a pattern of 160MHz preamble puncturing bandwidth. Also, as shown in fig. 11, for the case where the punctured cannot be used for channel 2 (S20 of P40) and channel 4 (S20 in S40) because of interference, the 160MHz can still be indicated to the responding end. For example, in the bandwidth indication shown in table 5, it may be indicated by the bandwidth field 11 that in the puncturing pattern at 160MHz, P80 exists only in the content channels contained in P20 (S20 of P40 and S20 of S40 are punctured), and another content channel is among the channels having lower frequency in S80; as another example, the bandwidth field 12 may indicate that, for a 160MHz puncturing pattern, P80 exists only for the content channels contained in P20, and another content channel is among the higher frequency channels in S80. At this time, the bandwidth range indicated by the preamble puncturing reception/transmission bandwidth indication may be 160Mhz or more.

In summary, the bandwidth indication shown in table 5a can support more flexible puncturing patterns and larger transmission bandwidths.

Table 5 a: possible bandwidth indication field in 802.11be standard

In one embodiment, the channel bandwidth and the preamble puncturing information of the PPDU may be indicated separately, and the preamble puncturing status indicated by the preamble puncturing indication field is separately shown in table 5 b.

Table 5 b: possible preamble punching indication field in 802.11be standard

Table 5 c: possible preamble puncturing indication field in another 802.11be standard

In one embodiment, possible preamble puncturing indication fields in another 802.11be standard and beyond are described, as shown in table 5c, where X indicates that a certain 20MHz sub-channel is punctured, 1 indicates that a certain 20MHz channel is not punctured, and Y indicates that a certain 20MHz channel may be punctured or not punctured. For the bandwidth of 80MHz, 4 ys do not exist.

For example, the cases indicated by the bandwidth fields of 0, 3, 4, and 6 require a pattern of 40MHz preamble puncturing bandwidth, i.e., CC1 and CC2 can be received only on a 40MHz bandwidth; at this time, the bandwidth range indicated by the preamble puncturing reception/transmission bandwidth indication may be 40MHz or more.

The cases indicated by the

bandwidth fields

1, 2, 5, and 7 require a pattern of 80MHz preamble puncturing bandwidth, i.e., CC1 and CC2 can be received only on the 80MHz bandwidth; at this time, the bandwidth range indicated by the preamble puncturing reception/transmission bandwidth indication may be 80MHz or more.

The cases indicated by the bandwidth fields of 8, 9, 10, 11 require a pattern of 160MHz preamble puncturing bandwidth, i.e. CC1 and CC2 need to be received over a bandwidth of 160 MHz; at this time, the bandwidth range indicated by the preamble puncturing reception/transmission bandwidth indication may be 160MHz or more.

On the basis of supporting a more flexible punching mode and a larger transmission bandwidth, when an initiating end of OM negotiation initiates OM negotiation to a responding end, at least one of preamble punching receiving bandwidth indication and preamble punching sending bandwidth indication is indicated in OMI, so that the responding end of OM negotiation receives and analyzes only a signaling field from a corresponding bandwidth range according to the preamble punching receiving bandwidth indication and the preamble punching sending bandwidth indication, and does not need to receive and analyze the signaling field from the whole channel bandwidth, thereby improving the efficiency of analyzing the signaling field and further improving the transmission throughput and speed. Thereby solving the problem of reduced transmission throughput and rate caused by the non-support of flexible channel bandwidth hole punching mode in 802.11 ax.

Example two

On the basis of the first embodiment, the OM negotiation technique can also be used to negotiate the channel bandwidth. That is, in addition to the preamble puncturing bandwidth, a channel bandwidth for transmitting PPDUs is further indicated in the OMI.

In this embodiment, a negotiation technique of a channel bandwidth OM is mainly described, which is suitable for the next generation 802.11be standard, and which can support indicating a larger channel bandwidth, for example, indicating a channel bandwidth exceeding 160 MHz.

Referring to fig. 2 and fig. 12, the negotiation technique of the channel bandwidth OM provided by the present application includes:

step 1200, the initiating end sends an OMI to the responding end, wherein the OMI comprises a channel bandwidth indication; the channel bandwidth indication indicates a range of an entire channel bandwidth for transmitting the PPDU; specifically, step 1200 may be performed by transceiver 205 in fig. 2;

step 1210, the response end receives the OMI and analyzes the channel bandwidth indication from the OMI; optionally, the response end replies to the acknowledgement frame; specifically, step 1210 may receive the OMI or reply to the acknowledgement frame through the transceiver 205 as in fig. 2, and parse the OMI and obtain the channel bandwidth indication through the processor 201 as in fig. 2;

step 1220, the initiating end and the responding end transmit PPDU according to the OMI; specifically, step 1220 may be performed by transceiver 205 in fig. 2.

In one embodiment, the OMI including the channel bandwidth indication is carried in an Aggregated Control (a-Control) subfield, as shown in fig. 13, the a-Control subfield includes at least one Control subfield (denoted as Control subfield 2 in the figure) for carrying channel bandwidth indication information, and specifically, the Control subfield includes a Control Identifier (ID) and Control information. Wherein the control ID may be one of the reserved control IDs, such as one of the control ID values 7-14 in table 3; the control information includes a channel bandwidth indication.

In one embodiment, the OMI containing the channel bandwidth indication is carried in a management frame, as shown in fig. 14, specifically in the EHT operation element. In this embodiment, the initiating peer may notify the OMI for multiple responding peers together in a broadcast format.

Table 6: channel bandwidth indication

Index	Channel bandwidth
			0	20MHz
1	40MHz
		2	80MHz
3	160MHz
		4	240MHz
5	320MHz
		6-7	Reservation

The correspondence between the index and the channel bandwidth shown in table 6 is only an example, and other correspondence manners are also possible, which are not illustrated here.

In an embodiment, as shown in table 6, the negotiation method of the channel bandwidth OM may indicate the channel bandwidth for transmitting PPDU by 3 bits, where the indicated channel bandwidths are 20MHz, 40MHz, 80MHz, 160MHz, 240MHz, and 320MHz, respectively, and compared with the channel bandwidth indication in the 802.11ax standard, the indication of the channel bandwidths of 240MHz and 320MHz is increased, and the throughput rate for transmitting PPDU is increased.

EXAMPLE III

In this embodiment, a joint negotiation method of a channel bandwidth OM and a preamble puncturing bandwidth OM is mainly described, which combines the preamble puncturing bandwidth negotiation method in the first embodiment with the channel bandwidth negotiation method in the second embodiment, and utilizes the characteristic that the preamble puncturing bandwidth does not exceed the channel bandwidth, thereby saving many items wasted by unnecessary combinations, saving bit values, and reducing indication overhead.

Referring to fig. 2 and fig. 15, the joint negotiation method for a channel bandwidth OM and a preamble puncturing bandwidth OM provided by the present application includes:

step 1500, the initiating end sends OMI to the responding end, wherein the OMI comprises a joint indication for joint indication of channel bandwidth and preamble punching bandwidth; the OMI is used for jointly indicating the range of the whole channel bandwidth for transmitting PPDU and the bandwidth range for carrying a signaling field; specifically, step 1500 may be performed by transceiver 205 as in fig. 2;

step 1510, the response end receives the OMI and analyzes the joint indication of the channel bandwidth and the preamble puncturing bandwidth from the OMI; optional response end replies acknowledgement frame; specifically, step 1210 may receive the OMI or reply to the acknowledgement frame through the transceiver 205 as in fig. 2, parse the OMI and obtain a joint indication of the channel bandwidth and the preamble puncturing bandwidth through the processor 201 as in fig. 2;

step 1520, the initiating end and the responding end transmit PPDU according to the OMI; specifically, step 1520 may be performed by transceiver 205 in fig. 2.

In one embodiment, the OMI including the joint indication of the channel bandwidth and the preamble puncturing bandwidth is carried in an Aggregated Control (a-Control) subfield, as shown in fig. 16, the a-Control subfield includes at least one Control subfield (denoted as Control subfield 2 in the figure) for carrying joint indication information of the channel bandwidth and the preamble puncturing bandwidth, and specifically, the Control subfield includes a Control Identifier (ID) and Control information. Wherein the control ID may be one of the reserved control IDs, such as one of the control ID values 7-14 in table 3; the control information includes a joint indication of the channel bandwidth and the preamble puncturing bandwidth.

In one embodiment, the OMI containing the joint indication of the channel bandwidth and the preamble puncturing bandwidth is carried in a management frame, as shown in fig. 17, specifically in the EHT operation element. In this embodiment, the initiating peer may notify the OMI for multiple responding peers together in a broadcast format.

In one embodiment, as shown in table 7, the negotiation method of joint OM of the channel bandwidth and the preamble puncturing bandwidth may jointly indicate the channel bandwidth for transmitting PPDU and the preamble puncturing bandwidth by 3 bits, and specifically, may indicate one of the following cases:

the channel bandwidth is 20MHz, and the preamble punching bandwidth is 20 MHz;

the channel bandwidth is 40MHz, and the preamble punching bandwidth is 40 MHz;

the channel bandwidth is 80MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 160MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 240MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 320MHz, and the preamble punching bandwidth is 80 MHz;

In one embodiment, table 7 may be split into tables 8 and 9, which respectively indicate a combination of a channel bandwidth and a preamble puncturing reception bandwidth, and a combination of a channel bandwidth and a preamble puncturing transmission bandwidth, and the preamble puncturing reception bandwidth and the preamble transmission bandwidth corresponding to the same channel bandwidth may not be the same.

As shown in table 8, the negotiation method of the joint OM of the channel bandwidth and the preamble puncturing reception bandwidth may jointly indicate the channel bandwidth for transmitting PPDU and the preamble puncturing reception bandwidth by 3 bits; similarly, as shown in table 9, the negotiation method of the joint OM of the channel bandwidth and the preamble puncturing transmission bandwidth may jointly indicate the channel bandwidth for transmitting PPDU and the preamble puncturing transmission bandwidth by 3 bits. The channel bandwidth may be collocated with the same or different preamble puncturing reception bandwidth and preamble puncturing transmission bandwidth, for example, when the channel bandwidth is 240MHz and the preamble puncturing reception bandwidth is 80MHz, in this case, the preamble puncturing transmission bandwidth may be 80MHz or 160 MHz.

The correspondence between the index and the channel bandwidth and the preamble puncturing bandwidth shown in tables 7, 8, and 9 is only an example, and other correspondence manners are also possible, which are not further illustrated herein.

Table 7: channel bandwidth and preamble puncturing bandwidth

Index	Channel bandwidth	Preamble puncturing bandwidth
			0	20MHz	20MHz
1	40MHz	40MHz
			2	80MHz	80MHz
3	160MHz	80MHz
			4	240MHz	80MHz
5	240MHz	160MHz
			6	320MHz	80MHz
7	320MHz	160MHz

Table 8: channel bandwidth and preamble puncturing reception bandwidth

Index	Channel bandwidth	Preamble puncturing reception bandwidth
			0	20MHz	20MHz
1	40MHz	40MHz
			2	80MHz	80MHz
3	160MHz	80MHz
			4	240MHz	80MHz
5	240MHz	160MHz
			6	320MHz	80MHz
7	320MHz	160MHz

Table 9: channel bandwidth and preamble puncturing transmission bandwidth

Index	Channel bandwidth	Preamble puncturing transmission bandwidth
			0	20MHz	20MHz
1	40MHz	40MHz
			2	80MHz	80MHz
3	160MHz	80MHz
			4	240MHz	80MHz
5	240MHz	160MHz
			6	320MHz	80MHz
7	320MHz	160MHz

Example four

In this embodiment, a method for negotiating a content channel mode OM is mainly described, where the method is used to indicate a content channel mode of a transmission signaling field.

Referring to fig. 2 and fig. 18, the negotiation method of the channel bandwidth OM provided by the present application includes:

step 1800, the initiating terminal sends OMI to the responding terminal, wherein the OMI comprises a content channel mode indication; a content channel mode indication for indicating a content channel mode for transmitting the signaling field; specifically, step 1800 may be performed by transceiver 205 as in fig. 2;

step 1810, the response end receives the OMI and analyzes the content channel mode indication from the OMI; optionally, the response end replies to the acknowledgement frame; specifically, step 1810 may include receiving, by the transceiver 205 as in fig. 2, the OMI or replying to the acknowledgement frame, parsing, by the processor 201 as in fig. 2, the OMI and obtaining the content channel mode indication;

step 1820, the initiating terminal and the responding terminal transmit PPDU according to the OMI; specifically, step 1820 may be performed by transceiver 205 in fig. 2.

In one embodiment, the OMI including the content channel mode indication is carried in an Aggregated Control (a-Control) subfield, as shown in fig. 19, the a-Control subfield includes at least one Control subfield (denoted as Control subfield 2 in the figure) for carrying the content channel mode indication information, and specifically, the Control subfield includes a Control Identifier (ID) and Control information. Wherein the control ID may be one of the reserved control IDs, such as one of the control ID values 7-14 in table 3; the control information includes a content channel mode indication.

In one embodiment, the OMI containing the content channel mode indication is carried in a management frame, as shown in fig. 20, specifically in the EHT operation element. In this embodiment, the initiating peer may notify the OMI for multiple responding peers together in a broadcast format.

In one embodiment, as shown in table 10, the content channel mode negotiation method may indicate different content channel modes through 2 bits, specifically: when the index is 00, the indicated content channel mode is that the odd-even content channel alternately carries two different signaling information, taking 4 content channels as an example, the 4 content channels alternately carry two different signaling information, which is expressed as: a first content channel-a second content channel-a first content channel-a second content channel, abbreviated CC1-CC2-CC1-CC2, or 1-2-1-2, indicating that the EHT-SIG carries, in order from lowest frequency to highest frequency of 20MHz, CC1, CC2, CC1, CC2, and so forth; when the index is 01, the indicated content channel mode sequentially carries two different signaling information for the plurality of content channels, for example, a high-frequency content channel carries one signaling information, and a low-frequency content channel carries another signaling information; taking 4 content channels as an example, after one kind of signaling information is carried, another kind of signaling information is carried, which is expressed as: a first content channel-a second content channel, abbreviated CC1-CC1-CC2-CC2, or 1-1-2-2, indicating that the EHT-SIG carries, in order from lowest frequency to highest frequency of 20MHz, CC1, CC1, CC2, CC2, and so forth; when the index is 10, the indicated content channel mode sequentially carries a plurality of different signaling information for a plurality of content channels, and taking 4 content channels as an example, the 4 content channels respectively sequentially carry different signaling information. After bearing one kind of signaling information, another kind of signaling information is then carried, which is expressed as: a first content channel, a second content channel, a third content channel, and a fourth content channel, abbreviated as CC1-CC2-CC3-CC4, or 1-2-3-4, indicating that the EHT-SIG carries 20MHz from lowest frequency to highest frequency, CC1, CC2, CC3, and CC4 in this order, and is duplicated in that order; when the index is 11, the content channel mode indicated by it is the same for the signaling information reserved or carried by multiple content channels, or just a different form or mathematical transformation of the same signaling information. Taking 4 content channels as an example, the signaling information carried by the 4 content channels is the same, and is represented as a first content channel-first content channel, which is abbreviated as 1-1-1-1-or 1A-1B-1C-1D, when the content mode is 1A-1B-1C-1D, the EHT-SIG is represented as 20MHz from the lowest frequency to the highest frequency, and all the channels carry CC1, which means that the same content channel is carried on the channel, and the same or similar signaling information is transmitted on the content channel, but different modifications or mathematical processing is performed.

Therefore, compared with the 802.11ax standard which only supports the content channel mode of 1-2-1-2, the content channel mode indication mode in the embodiment supports more various and flexible content channel modes. For example, the mode 1-2-1-2 requires at least 40MHz bandwidth to obtain CC1 and CC2, thereby obtaining all signaling information required for demodulating subsequent data, while the mode 1-1-1-1 requires only 20MHz bandwidth to obtain all signaling information, and thus, in some cases, the content channel mode indication manner of the embodiment of the present application may improve the efficiency of parsing a signaling field, thereby further improving the transmission throughput rate and speed; as another example, for the 1-2-1-2 mode, if the second and fourth 20MHz channels are punctured, the CC2 and thus the complete signaling information cannot be obtained from P80, and for the 1-1-2-2 mode, even if the second and fourth 20MHz channels are punctured, the CC1 and the CC2 can be obtained from the first and third 20MHz channels, respectively, which means that the more flexible content channel mode can support the more flexible preamble puncturing manner; for another example, if there is no explicit content channel mode indication information, when the actual content channel mode is 1-1-2-2, the receiving end still reads the signaling field in the manner of 1-2-1-2, i.e., only reads the signaling field of the previous 40MHz channel, and cannot receive the CC2, so that the subsequent data is demodulated erroneously, which can be avoided by the content channel mode indication in this embodiment.

Table 10: content channel mode indication

The correspondence between the index and the content channel mode shown in table 10 is only an example, and other correspondence manners are also possible, which are not described herein.

EXAMPLE five

In this embodiment, a method for negotiating a signaling field receiving location OM is mainly described, where the method is used to indicate a receiving location where a signaling field that a responding end needs to read is located, and the signaling field includes, but is not limited to, an EHT-SIG field.

Referring to fig. 2 and fig. 21, the method for indicating the receiving position OM of the signaling field provided by the present application includes:

step 2100, the initiating terminal sends an OMI to the responding terminal, and the OMI includes an EHT-SIG receiving position indication; the EHT-SIG receiving position indication is used for indicating the receiving position of the EHT-SIG; specifically, step 2100 may be performed by transceiver 205, as in fig. 2;

step 2110, the response end receives the OMI and analyzes the received position indication of the EHT-SIG from the OMI; optionally, the response end replies to the acknowledgement frame; specifically, step 2110 may receive the OMI or reply to the ack frame through the transceiver 205 as shown in fig. 2, and parse the OMI and obtain the EHT-SIG receiving location indication through the processor 201 as shown in fig. 2;

step 2120, the initiating end and the responding end transmit PPDU according to the OMI; specifically, step 2120 may be performed by transceiver 205 in fig. 2.

In one embodiment, the OMI including the EHT-SIG receiving location is carried in an Aggregated Control (a-Control) subfield, as shown in fig. 19, where the a-Control subfield includes at least one Control subfield (denoted as Control subfield 2 in the figure) for carrying indication information of the EHT-SIG receiving location, and specifically, includes a Control Identifier (ID) and Control information. Wherein the control ID may be one of the reserved control IDs, such as one of the control ID values 7-14 in table 3; the control information includes an EHT-SIG reception position indication.

In one embodiment, the OMI containing the EHT-SIG reception location is carried in a management frame, as shown in fig. 20, specifically in an EHT operation element. In this embodiment, the initiating peer may notify the OMI for multiple responding peers together in a broadcast format.

In one embodiment, as shown in table 11, the EHT-SIG reception position indication manner may indicate different reception positions by 2 bits, specifically: when the index is 00, the indicated receiving position of the EHT-SIG is 80MHz with the lowest frequency, which indicates that the responding terminal receives the EHT-SIG at the 80MHz with the lowest frequency; when the index is 01, the indicated receiving position of the EHT-SIG is the next lower frequency of 80MHz, which indicates that the responding terminal receives the EHT-SIG at the next lower frequency of 80 MHz; when the index is 10, the indicated receiving position of the EHT-SIG is the next highest frequency of 80MHz, which indicates that the responding terminal receives the EHT-SIG at the next highest frequency of 80 MHz; when the index is 11, the receiving position of the EHT-SIG indicated by the index is the highest frequency of 80MHz, which indicates that the responding terminal receives the EHT-SIG at the highest frequency of 80 MHz.

In one embodiment, when the PPDU bandwidth is 160MHz, two 80MHz can be respectively indicated by using the first two indexes in table 7; when the PPDU bandwidth is 240Mhz, three 80Mhz may be respectively indicated by the first three indexes in table 7; when the PPDU bandwidth is 320Mhz, four 80Mhz may be respectively indicated by four indexes in table 7.

It can be seen that, compared to the preamble puncturing bandwidth OM negotiation in the first embodiment, the signaling field receiving position OM negotiation in this embodiment may more specifically instruct the responding end to receive the signaling field on a certain 80MHz channel, for example, if the preamble puncturing bandwidth OM negotiation in the first embodiment is used, and when the preamble puncturing bandwidth is indicated as 160MHz, the responding end may need to receive and parse the signaling field on the entire channel bandwidth of 160 MHz; similarly, in this embodiment, the responding end only needs to receive and analyze the signaling field on one of the 80MHz channel bandwidth with the lowest frequency or the 80MHz channel bandwidth with the second lowest frequency, so that the efficiency of analyzing the signaling field is improved, and the transmission throughput and the transmission rate are further improved.

Table 11: EHT-SIG receive position indication

Index	EHT-SIG receive position
		00	Frequency of 80MHz minimum
01	Frequency of 80MHz
		10	Frequency of 80MHz
11	Frequency of 80MHz maximum

The correspondence between the index shown in table 11 and the EHT-SIG receiving position is merely an example, and other correspondence manners may be used, which are not illustrated here.

EXAMPLE six

In this embodiment, a joint negotiation method for content channel mode OM and signaling field receiving position OM is mainly described, which enables a transceiver to design different operation modes for different channel environments, thereby improving the utilization rate of channels. The signaling field includes, but is not limited to, an EHT-SIG field, which is described as an example in this embodiment.

Referring to fig. 2 and 22, the main flow of the method is as follows:

step 2200, the initiating terminal sends OMI to the responding terminal through a Non-high throughput (Non-HT) copied PPDU format, where the OMI includes a content channel mode indication and an EHT-SIG receiving position indication; a content channel mode indication to indicate a content channel mode of the EHT-SIG transmission; the EHT-SIG receiving position indication is used for indicating the receiving position of the EHT-SIG; specifically, step 2200 may be performed by transceiver 205 as in fig. 2;

step 2210, the responding end receives the OMI and parses out a content channel mode indication and an EHT-SIG receiving position indication from the OMI; optionally, the response end replies to the acknowledgement frame; specifically, step 2210 may receive the OMI or reply to the acknowledgement frame via the transceiver 205, such as in fig. 2, parse the OMI and obtain the content channel mode indication and the EHT-SIG reception location indication via the processor 201, such as in fig. 2;

step 2220, the initiating end and the responding end transmit PPDU according to the OMI; specifically, step 2220 may be performed by transceiver 205 in fig. 2.

In one embodiment, as shown in fig. 23, the initiating terminal simultaneously transmits the content channel mode and the EHT-SIG receiving location OM to the responding terminal 1 (denoted as STA1 in the figure) and the responding terminal 2 (denoted as STA2 in the figure), wherein the content channel mode indicated to the responding terminal 1 is the 1-2-1-2 mode corresponding to the index number 00, the content channel mode indicated to the responding terminal 2 is the 1-1-2-2 mode corresponding to the index number 01, the initiating terminal transmits the content channel mode and the EHT-SIG receiving location OM on the channels 1-5 and 7 by non-HT replication, and the channels 6 and 8 are punctured. The EHT-SIG receiving position indicated by the initiator to the responder 1 is the first 80MHz, and the EHT-SIG receiving position indicated by the initiator to the responder 2 is the second 80 MHz. After negotiation and confirmation, when the initiating terminal sends the EHT PPDU again, the responding terminal 1 receives the signal on the first 80MHz, namely receives the EHT-SIG on the 80MHz with the lowest frequency; the responding terminal 2 receives at the second 80MHz, that is, at the next lower frequency of 80MHz, the EHT-SIG. Alternatively, by properly negotiating the content channel mode, the responder 2 can acquire both CC1 and CC2 in the first 80 MHz. It can be seen that, in the embodiment, the joint negotiation method of the content channel mode OM and the signaling field receiving position OM enables the transceiver to flexibly design different operation modes for different channel environments, thereby maximizing the utilization rate of the channel.

It is understood that some optional features in the embodiments of the present application may be implemented independently without depending on other features in some scenarios, such as a currently-based solution, to solve corresponding technical problems and achieve corresponding effects, or may be combined with other features according to requirements in some scenarios. Accordingly, the apparatuses provided in the embodiments of the present application may also implement these features or functions, which are not described herein again.

In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor.

In the embodiment of the present application, the memory may be a nonvolatile memory, such as a Hard Disk Drive (HDD) or a solid-state drive (SSD), and may also be a volatile memory, for example, a random-access memory (RAM). The memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory in the embodiments of the present application may also be circuitry or any other device capable of performing a storage function for storing program instructions and/or data.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A method for negotiating an operating mode, comprising:

an initiating end sends an operation mode indication OMI, wherein the OMI comprises a lead code punching bandwidth indication; the preamble puncturing bandwidth indication is used for indicating a bandwidth range for carrying a signaling field; the signaling field at least carries all signaling information required for demodulating data in a physical layer protocol data unit (PPDU);

and the initiating terminal performs PPDU transmission with the responding terminal according to the bandwidth range indicated by the preamble code puncturing bandwidth indication.

2. The method of claim 1, wherein the preamble puncturing bandwidth indication comprises at least one of a preamble puncturing reception bandwidth indication and a preamble puncturing transmission bandwidth indication;

the preamble puncturing receiving bandwidth indicates a bandwidth range of a signaling field for indicating that a receiving end of the PPDU can read at least one piece of all signaling information required for demodulating data in the PPDU;

the preamble punch sending bandwidth indication is used for indicating a sending end of the PPDU to send a bandwidth range occupied by signaling fields corresponding to at least one piece of all signaling information required for demodulating data in the PPDU.

3. The method of claim 1,

the OMI further includes a channel bandwidth indication indicating a range of an entire channel bandwidth over which the PPDU is transmitted.

4. The method of claim 3, wherein the channel bandwidth indication and the preamble puncturing bandwidth indication are indicated jointly.

5. A method for negotiating an operating mode, comprising:

an initiating end sends an operation mode indication OMI, wherein the OMI comprises a content channel mode indication; the content channel mode indication indicates a content channel mode for transmitting a signaling field;

and the initiating terminal performs PPDU transmission with the responding terminal according to the content channel mode indicated by the content channel mode indication.

6. A method for negotiating an operating mode, comprising:

an initiating end sends an operation mode indication OMI, wherein the OMI comprises a signaling field receiving position indication; the signaling field receiving position indication is used for indicating the receiving position of the signaling field;

and the initiating terminal performs PPDU transmission with the responding terminal according to the receiving position indicated by the signaling field receiving position indication.

7. The method of claim 1 or 5 or 6,

the OMI is carried in control information corresponding to the control subfield.

8. The method of claim 1 or 5 or 6,

the OMI is carried in a very high throughput EHT operation element of a management frame.

9. The method as recited in claim 7,

the control subfield includes a control identifier ID;

the control ID is one of the reserved control IDs.

10. The method as recited in claim 2, comprising:

the preamble puncture reception bandwidth indication indicates any one of bandwidths of 40MHz, 80MHz, and 160 MHz; or

The preamble puncture reception bandwidth indication indicates any one of bandwidths of 80MHz and 160 MHz.

11. The method as recited in claim 2, comprising:

the preamble puncture transmission bandwidth indication is used for indicating any one of bandwidths of 40MHz, 80MHz and 160 MHz; or

The preamble puncture transmission bandwidth indication indicates either one of a bandwidth of 80MHz and a bandwidth of 160 MHz.

12. The method as recited in claim 4,

the channel bandwidth indication and the preamble puncturing bandwidth indication jointly indicate one of:

the channel bandwidth is 20MHz, and the preamble punching bandwidth is 20 MHz;

the channel bandwidth is 40MHz, and the preamble punching bandwidth is 40 MHz;

the channel bandwidth is 80MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 160MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 240MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 320MHz, and the preamble punching bandwidth is 80 MHz;

13. The method as recited in claim 5,

the content channel mode indication is to indicate one of the following content channel modes:

a first content channel-a second content channel-a first content channel-a second content channel;

a first content channel-a second content channel;

a first content channel-a second content channel-a third content channel-a fourth content channel;

first content channel-first content channel.

14. The method as recited in claim 6,

the signaling field reception position indication is used for indicating one of the reception positions of the following signaling fields:

the lowest frequency is 80 MHz;

the frequency is lower than 80 MHz;

the frequency is higher than 80 MHz;

the frequency is up to 80 MHz.

15. A method for negotiating an operating mode, comprising:

a response end receives an Operation Mode Indication (OMI), wherein the OMI comprises a preamble puncturing bandwidth indication; the preamble puncturing bandwidth indication is used for indicating a bandwidth range for carrying a signaling field; the signaling field at least carries all signaling information required for demodulating data in a physical layer protocol data unit (PPDU);

and the response end performs PPDU transmission with the initiating end according to the bandwidth range indicated by the preamble puncturing bandwidth indication.

16. The method of claim 15, wherein the preamble puncturing bandwidth indication information includes at least one of a preamble puncturing reception bandwidth indication and a preamble puncturing transmission bandwidth indication;

17. The method as recited in claim 15,

18. The method of claim 17, wherein the channel bandwidth indication and the preamble puncturing bandwidth indication are indicated jointly.

19. A method for negotiating an operating mode, comprising:

receiving an Operation Mode Indication (OMI) by a response terminal, wherein the OMI comprises a content channel mode indication; the content channel mode indication indicates a content channel mode for transmitting a signaling field;

and the response end performs PPDU transmission with the initiating end according to the content channel mode indicated by the content channel mode indication.

20. A method for negotiating an operating mode, comprising:

a response end receives an Operation Mode Indication (OMI), wherein the OMI comprises a signaling field receiving position indication; the signaling field receiving position indication is used for indicating the receiving position of the signaling field;

and the response end performs PPDU transmission with the initiating end according to the receiving position indicated by the signaling field receiving position indication.

21. An initiating terminal, comprising:

22. The initiator of claim 21, wherein the preamble puncturing bandwidth indication comprises at least one of a preamble puncturing reception bandwidth indication and a preamble puncturing transmission bandwidth indication;

23. The initiating terminal as claimed in claim 21,

24. The originating end of claim 23, wherein the channel bandwidth indication and the preamble puncturing bandwidth indication are indicated jointly.

25. An initiating terminal, comprising:

26. An initiating terminal, comprising:

27. A responding peer, comprising:

28. The responder according to claim 27, wherein the preamble puncturing bandwidth indication information includes at least one of a preamble puncturing reception bandwidth indication and a preamble puncturing transmission bandwidth indication;

29. The responder according to claim 27,

30. The responder according to claim 29, wherein the channel bandwidth indication and the preamble puncturing bandwidth indication are indicated jointly.

31. A responding peer, comprising:

32. A responding peer, comprising:

33. A responding end according to claim 27 or 31 or 32, wherein the process of the responding end receiving the OMI comprises:

the transceiver receives control information corresponding to the control subfield;

and the processor analyzes the OMI from the control information to obtain corresponding indication information.

34. A responding end according to claim 27 or 31 or 32, wherein the process of the responding end receiving the OMI comprises:

receiving, by the transceiver, a very high throughput EHT operation element in a management frame;

and the processor analyzes the OMI from the EHT operation element to obtain corresponding indication information.

35. The responder according to claim 33, comprising:

the control subfield includes a control identifier ID;

the control ID is one of the reserved control IDs.

36. The responder according to claim 28, comprising:

37. The responder according to claim 28, comprising:

38. The responder according to claim 30,

the channel bandwidth is 20MHz, and the preamble punching bandwidth is 20 MHz;

the channel bandwidth is 40MHz, and the preamble punching bandwidth is 40 MHz;

the channel bandwidth is 80MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 160MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 240MHz, and the preamble punching bandwidth is 80 MHz;

the channel bandwidth is 320MHz, and the preamble punching bandwidth is 80 MHz;

39. The responder according to claim 31,

a first content channel-a second content channel;

first content channel-first content channel.

40. The responder according to claim 32,

the lowest frequency is 80 MHz;

the frequency is lower than 80 MHz;

the frequency is higher than 80 MHz;

the frequency is up to 80 MHz.

41. A chip system, comprising: at least one processor and an interface;

42. A chip system, comprising: at least one processor and an interface;