CN109547190B

CN109547190B - Full-duplex communication method and apparatus, and non-transitory computer-readable storage medium

Info

Publication number: CN109547190B
Application number: CN201910082214.0A
Authority: CN
Inventors: 赵育仁; 余庆华; 徐彦超; 王泷
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2019-01-28
Filing date: 2019-01-28
Publication date: 2021-07-23
Anticipated expiration: 2039-01-28
Also published as: CN109547190A

Abstract

The present disclosure relates to full duplex communication methods and apparatus and non-transitory computer readable storage media, the methods comprising: sending an F-RTS-PLL trigger frame; receiving an information frame from a station STA, wherein the F-RTS-PLL trigger frame is used for triggering the sending of the information frame; selecting a half-duplex sending STA according to the information frame; and simultaneously performing data receiving processing for receiving data from the half-duplex transmitting STA and data transmitting processing for transmitting data to the half-duplex receiving STA in the same frequency, wherein the half-duplex receiving STA is specified in the F-RTS-PLL trigger frame. Thus, full-duplex communication is realized, and a half-duplex receiving STA and a half-duplex transmitting STA can be appropriately and efficiently selected.

Description

Full-duplex communication method and apparatus, and non-transitory computer-readable storage medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a full duplex communication method and apparatus, and a non-transitory computer-readable storage medium.

Background

In a wireless communication system, an In-band Full Duplex (IBFD) technology can realize simultaneous and same-frequency bidirectional transmission of signals, that is, uplink data communication and downlink data communication are simultaneously realized on a single wireless channel.

Full duplex technologies include symmetric full duplex technologies and asymmetric full duplex technologies. In the symmetric full-duplex technology, both an Access Point (AP) and a Station (STA) have full-duplex capability, and signals are transmitted between the AP and the STA in two directions at the same time and the same frequency. In asymmetric full-duplex technology, only the AP has full-duplex capability, the AP transmitting signals to one STA and simultaneously receiving signals from another STA on the same frequency.

If the asymmetric full duplex technology is used in the same frequency or adjacent frequency bands, the same frequency interference or adjacent frequency interference may be generated, and therefore it is required to appropriately select an appropriate paired STA for implementation.

Disclosure of Invention

In view of the above, the present disclosure provides a full duplex communication method and apparatus and a non-transitory computer readable storage medium.

According to a first aspect of the present disclosure, a full-duplex communication method is provided, which is applied to a full-duplex access point AP, and the method includes: sending an F-RTS-PLL trigger frame; receiving an information frame from a station STA, wherein the F-RTS-PLL trigger frame is used for triggering the sending of the information frame; selecting a half-duplex sending STA according to the information frame; and simultaneously performing data receiving processing for receiving data from the half-duplex transmitting STA and data transmitting processing for transmitting data to the half-duplex receiving STA in the same frequency, wherein the half-duplex receiving STA is specified in the F-RTS-PLL trigger frame.

According to a second aspect of the present disclosure, there is provided a full-duplex communication method applied to a full-duplex access point AP, the method including: receiving an F-RTS frame from a station STA; sending a F-CTS-PLL trigger frame; receiving an information frame from an STA, wherein the F-CTS-PLL trigger frame is used for triggering the sending of the information frame; selecting a half-duplex receiving STA according to the information frame; and simultaneously carrying out data transmission processing for transmitting data to the half-duplex receiving STA and data receiving processing for receiving data from the half-duplex transmitting STA in the same frequency, wherein the half-duplex transmitting STA is the STA for transmitting the F-RTS frame.

According to a third aspect of the present disclosure, there is provided a full duplex communication method applied to a station STA, the method including: receiving an F-RTS-PLL trigger frame sent by a full-duplex Access Point (AP); sending an information frame to the full-duplex AP according to the F-RTS-PLL trigger frame, wherein the F-RTS-PLL trigger frame is used for triggering the sending of the information frame; and according to the F-TRG trigger frame sent by the full-duplex AP, carrying out data transmission processing with the full-duplex AP at the same time with another STA, wherein the F-TRG trigger frame is used for triggering the data transmission processing.

According to a fourth aspect of the present disclosure, there is provided a full duplex communication method applied to a station STA, the method including: sending an F-RTS frame to a full-duplex Access Point (AP); receiving an F-TRG trigger frame sent by the full-duplex AP; and according to the F-TRG trigger frame, when another STA executes data receiving processing of receiving data from the full-duplex AP, executing data sending processing of sending data to the full-duplex AP at the same time in the same frequency, wherein the F-TRG trigger frame is used for triggering the data sending processing.

According to a fifth aspect of the present disclosure, there is provided a full-duplex communication apparatus applied to a full-duplex access point AP, the apparatus including: the sending module is used for sending an F-RTS-PLL trigger frame; a receiving module, configured to receive an information frame from a station STA, where the F-RTS-PLL trigger frame is used to trigger sending of the information frame; a selection module, configured to select a half-duplex transmitting STA according to the information frame; and the processing module is used for simultaneously carrying out data receiving processing for receiving data from the half-duplex sending STA and data sending processing for sending data to the half-duplex receiving STA in the same frequency, wherein the half-duplex receiving STA is specified in the F-RTS-PLL trigger frame.

According to a sixth aspect of the present disclosure, there is provided a full-duplex communication apparatus applied to a full-duplex access point AP, the apparatus including: a receiving module, configured to receive an F-RTS frame and an information frame from a station STA; a sending module, configured to send a F-CTS-PLL trigger frame, where the F-CTS-PLL trigger frame is used to trigger sending of the information frame; a selection module for selecting a half-duplex receiving STA according to the information frame; and the processing module is used for carrying out data sending processing for sending data to the half-duplex receiving STA and data receiving processing for receiving data from the half-duplex sending STA at the same time, wherein the half-duplex sending STA is the STA for sending the F-RTS frame.

According to a seventh aspect of the present disclosure, there is provided a full duplex communication apparatus applied to a station STA, the apparatus including: the receiving module is used for receiving an F-RTS-PLL trigger frame sent by a full-duplex access point AP; a sending module, configured to send an information frame to the full-duplex AP according to the F-RTS-PLL trigger frame, where the F-RTS-PLL trigger frame is used to trigger sending of the information frame; and the processing module is used for simultaneously carrying out data transmission processing with the full-duplex AP in a same frequency with another STA according to the F-TRG trigger frame sent by the full-duplex AP, wherein the F-TRG trigger frame is used for triggering the data transmission processing.

According to an eighth aspect of the present disclosure, there is provided a full duplex communication apparatus applied to a station STA, the apparatus including: a sending module, configured to send an F-RTS frame to a full-duplex access point AP; a receiving module, configured to receive an F-TRG trigger frame sent by the full-duplex AP; and the processing module is used for simultaneously carrying out data transmission processing of transmitting data to the full-duplex AP in a same frequency manner when another STA carries out data receiving processing of receiving data from the full-duplex AP according to the F-TRG trigger frame, wherein the F-TRG trigger frame is used for triggering the data transmission processing.

According to a ninth aspect of the present disclosure, there is provided a non-transitory computer readable storage medium having instructions which, when executed by a processor, enable the processor to perform the above method.

According to a tenth aspect of the present disclosure, there is provided a full duplex communication apparatus comprising: a processor; a memory for storing processor executable instructions, wherein the processor is configured to perform the above method.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: a full-duplex AP transmits an F-RTS-PLL trigger frame for designating a half-duplex receiving STA, and determines a half-duplex transmitting STA from information frames received from the STAs, the full-duplex AP simultaneously performs a data transmission process of transmitting data to the half-duplex receiving STA and a data reception process of receiving data from the half-duplex transmitting STA on the same frequency, thereby realizing full-duplex communication, and since the half-duplex receiving STA is designated by the F-RTS-PLL trigger frame and the half-duplex transmitting STA is determined from the information frames received from the STAs, the half-duplex receiving STA and the half-duplex transmitting STA can be appropriately and efficiently selected.

Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram illustrating a wireless communication system in accordance with an example embodiment.

Fig. 2 is a flow chart illustrating a method of full duplex communication according to an example embodiment.

Fig. 3 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment.

Fig. 4 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment.

Fig. 5 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment.

Fig. 6 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment.

Fig. 7 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment.

Fig. 8 is a flow chart illustrating a method of full duplex communication according to an example embodiment.

Fig. 9 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment.

Fig. 10 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment.

Fig. 11 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment.

Fig. 12 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment.

Fig. 13 is a flow chart illustrating a method of full duplex communication according to an example embodiment.

Fig. 14 is a flow chart illustrating a method of full duplex communication according to an example embodiment.

Fig. 15 is a block diagram illustrating a full-duplex communication device in accordance with an example embodiment.

Fig. 16 is a block diagram illustrating a full-duplex communications apparatus according to an example embodiment.

Fig. 17 is a block diagram illustrating a full-duplex communications apparatus according to an example embodiment.

Fig. 18 is a block diagram illustrating a full-duplex communications apparatus according to an example embodiment.

Fig. 19 is a block diagram illustrating a hardware architecture of an apparatus 1900 for full duplex communication according to an example embodiment.

Fig. 20 is a block diagram illustrating an apparatus 2000 for full duplex communication in accordance with an example embodiment.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

For convenience of explanation, some terms related to the present disclosure will be first explained below.

An Access Point (AP) may also be referred to as a wireless Access Point, a bridge, a hotspot, and the like, and may Access a server or a communication network.

A Station (STA) may be a wireless communication terminal or a mobile terminal, such as a mobile phone (may be referred to as a "cellular" phone) supporting a wireless fidelity (WiFi) communication function, a tablet computer supporting a WiFi communication function, a computer with a wireless communication function, and the like.

Fig. 1 is a schematic diagram illustrating a wireless communication system in accordance with an example embodiment. As shown in fig. 1, the wireless communication system includes an AP and a plurality of STAs (e.g., mobile phones) within the coverage of the AP, such as STA-1, STA-2, STA-3, STA-4, STA-5, and STA-6. Both the AP and the STA are provided with an antenna, which may be a receiving antenna for receiving data only, a transmitting antenna for transmitting data only, or a transceiving antenna for transceiving data. The AP is a full-duplex access point and operates in full-duplex mode, the STA may be a full-duplex station but operates in half-duplex mode, or the STA is a half-duplex station and operates in half-duplex mode.

Fig. 2 is a flow diagram illustrating a full-duplex communication method that may be applied to a full-duplex AP, such as the AP of fig. 1, according to an example embodiment. It should be noted that the full duplex communication method is initiated by the AP. As shown in fig. 2, the full-duplex communication method may include the following steps.

In step S110, an F-RTS-PLL trigger frame is transmitted.

In this embodiment, an F-RTS-PLL trigger frame is designed, and the full-duplex AP may directly designate a half-duplex receiving STA through the F-RTS-PLL trigger frame. The half-duplex receiving STA may be a half-duplex STA or a full-duplex STA.

In step S120, an information frame from the station STA is received.

In this embodiment, the full-duplex AP may receive the information frame sent by each STA. Each STA may be a half-duplex STA or a full-duplex STA. The information frame transmitted by each STA may be a frame indicating whether the STA is suitable as a half-duplex transmitting STA.

In step S130, a half-duplex transmitting STA is selected according to the information frame.

In this embodiment, the full-duplex AP may select one STA from STAs that transmit information frames as a half-duplex transmitting STA according to the information frames received from the STAs. Wherein the half-duplex transmitting STA may be either a half-duplex STA or a full-duplex STA.

In step S140, a data reception process of receiving data from the half-duplex transmitting STA and a data transmission process of transmitting data to a half-duplex receiving STA, which is specified in the F-RTS-PLL trigger frame, are performed at the same time on the same frequency.

In this embodiment, after the half-duplex receiving STA and the half-duplex transmitting STA are determined, the full-duplex AP may perform data transmission processing of transmitting data to the half-duplex receiving STA and data reception processing of receiving data from the half-duplex transmitting STA at the same time in the same frequency, and thus, full-duplex communication may be realized by one full-duplex AP, one half-duplex receiving STA, and one half-duplex transmitting STA.

In the full-duplex communication method of the present embodiment, the full-duplex AP transmits the F-RTS-PLL trigger frame for specifying the half-duplex receiving STA and determines the half-duplex transmitting STA according to the information frame received from each STA, and the full-duplex AP simultaneously performs the data transmission processing of transmitting data to the half-duplex receiving STA and the data reception processing of receiving data from the half-duplex transmitting STA on the same frequency, thereby realizing the full-duplex communication.

In one implementation, the half-duplex receiving STA specified by the F-RTS-PLL trigger frame sends a F-CTS frame; the STA that receives the F-RTS-PLL trigger frame may determine whether it is an STA suitable for the data transmission process according to the strength of the received F-CTS frame.

In this embodiment, the F-RTS-PLL trigger frame may specify a half-duplex receiving STA, request the half-duplex receiving STA to reply to the F-CTS frame, and request the half-duplex receiving STA to wait for the F-TRG trigger frame. The half-duplex receiving STA specified by the F-RTS-PLL trigger frame therefore replies to the full-duplex AP with an F-CTS frame, i.e., the half-duplex receiving STA sends an F-CTS frame to the full-duplex AP. The F-CTS frame may be used in response to the F-RTS-PLL trigger frame and the half-duplex receiving STA does not immediately transmit data after replying to the F-CTS frame from the full-duplex AP, but waits until the full-duplex AP sends the F-TRG trigger frame. Wherein, during the waiting time, the STA receiving the F-RTS-PLL trigger frame can report back to the full-duplex AP.

It can be understood that the STA which receives the F-RTS-PLL trigger frame can know the time when the half-duplex receiving STA transmits the F-CTS frame to the full-duplex AP, and each STA can determine whether it is an STA suitable for data transmission processing for transmitting data to the full-duplex AP according to the strength of the received F-CTS frame. For example, each STA may compare a value of a Received Signal Strength (RSSI) of an F-CTS frame with a threshold, and if the value of the RSSI is higher than the threshold or the STA has no uplink Transmission (TX) requirement, determine that the STA is an STA unsuitable for data transmission processing; otherwise, it is determined that itself is an STA suitable for data transmission processing.

In one implementation, the F-RTS-PLL Trigger frame specifies a Trigger response frame (TB PPDU) after the F-CTS frame, where the Trigger response frame is an uplink Orthogonal Frequency Division Multiple Access (OFDMA) packet (packet), where the F-RTS-PLL Trigger frame specifies that an STA that needs to report whether data transmission processing is appropriate uses a Resource Unit (RU) specified by a full-duplex AP for reporting, and other STAs use Random Access Resource Units (RARUs) for reporting.

In one implementation, the F-RTS-PLL trigger frame further specifies a STA that needs to report back whether the data transmission process is suitable, where the information frame includes any one or more of:

an RPT-P frame which is sent by the STA needing the report back and designated in the F-RTS-PLL trigger frame and is used for indicating that the STA is suitable for the data sending processing;

an RPT-N frame transmitted by the STA requiring the report specified in the F-RTS-PLL trigger frame and indicating that the STA is not suitable for the data transmission process;

a REQ-T frame transmitted by a STA other than the STA specified in the F-RTS-PLL trigger frame to indicate that the STA is suitable for the data transmission processing.

In this embodiment, the F-RTS-PLL trigger frame may further specify STAs which need to report back whether data transmission processing for transmitting data to the full-duplex AP is appropriate, and thus the F-RTS-PLL trigger frame may specify one half-duplex receiving STA and one or more STAs which need to report back whether data transmission processing is appropriate.

The STA that needs to report back whether it is suitable for data transmission processing may report back whether it is suitable for data transmission processing to the full-duplex AP using the RU designated by the full-duplex AP. For example, the STA may determine whether it is suitable for data transmission processing according to the strength of the received F-CTS frame transmitted by the half-duplex receiving STA, and if it is determined that it is suitable for data transmission processing, the STA may transmit an affirmative report to the full-duplex AP, where the affirmative report is a report indicating that it is suitable for data transmission processing, and the affirmative report corresponds to an RPT-P frame; conversely, if it is determined that the STA is not suitable for data transmission processing, the STA may transmit a negative report to the full-duplex AP, the negative report indicating that the STA is not suitable for data transmission processing, the negative report corresponding to the RPT-N frame.

It can be understood that, in addition to the STA specified by the F-RTS-PLL trigger frame, other STAs not specified by the F-RTS-PLL trigger frame may use the RARU to report to the full-duplex AP that they are suitable for the transmission processing for transmitting data to the full-duplex AP. In this embodiment, the other STA may transmit an affirmative report to the full-duplex AP using the RARU, where the affirmative report is a report indicating that the other STA is suitable for data transmission processing for transmitting data to the full-duplex AP, and the affirmative report corresponds to a REQ-T frame.

In one implementation, the step S130 may include:

selecting the STA which transmits the REQ-T frame as the half-duplex transmitting STA under the condition that the information frame comprises an RPT-N frame and a REQ-T frame but does not comprise an RPT-P frame; or

Selecting the STA which sends the RPT-P frame or the STA which sends the REQ-T frame as the half-duplex sending STA under the condition that the information frame comprises the RPT-N frame, the REQ-T frame and the RPT-P frame; or

And selecting the STA which transmits the RPT-P frame as the half-duplex transmitting STA under the condition that the information frame comprises the RPT-N frame and the RPT-P frame but does not comprise the REQ-T frame.

In this embodiment, the information frames received by the full-duplex AP may include, but are not limited to, the above-mentioned RPT-P frames, RPT-N frames, REQ-T frames, and the like. In one implementation, the lengths of the data frame times (duration) of the RPT-P frame, the RPT-N frame, and the REQ-T frame may be the same. For example, the F-RTS-PLL trigger frame may predefine or specify that the data frame time lengths of the RPT-P frame, the RPT-N frame, and the REQ-T frame are the same. The RPT-P frame, RPT-N frame, REQ-T frame, all three from different STAs and are part of an uplink OFDMA packet, where the RPT-P frame and RPT-N frame are transmitted using the RU specified by the F-RTS-PLL trigger frame and the REQ-T frame is transmitted using the RARU.

If the RPT-N frame and the REQ-T frame are received but the RPT-P frame is not received, it indicates that the STA which needs to report whether it is suitable for data transmission processing is not suitable for data transmission processing, and other STAs which are not designated by the F-RTS-PLL trigger frame are suitable for data transmission processing, so that the other STAs which have transmitted the REQ-T frame can be selected as half-duplex transmitting STAs.

When receiving the RPT-N frame, the REQ-T frame, and the RPT-P frame, it indicates that the STA that needs to report whether it is appropriate to perform the data transmission processing, and that the other STA that is not designated by the F-RTS-PLL trigger frame is also appropriate to perform the data transmission processing, and therefore, the STA that has transmitted the RPT-P frame or the other STA that has transmitted the REQ-T frame can be selected as the half-duplex transmission STA.

If the RPT-N frame and the RPT-P frame are received but the REQ-T frame is not received, it indicates that the STA that needs to report whether it is suitable for data transmission processing, and other STAs not specified by the F-RTS-PLL trigger frame are not suitable for data transmission processing, so the STA that has transmitted the RPT-P frame can be selected as a half-duplex transmitting STA.

In one implementation, the full-duplex communication method may further include: before the data transmission processing and the data reception processing are performed, an F-TRG trigger frame is transmitted to the selected half-duplex transmitting STA and half-duplex receiving STA, wherein the F-TRG trigger frame is used for triggering the data reception processing and the data transmission processing.

In this embodiment, the full-duplex AP may set a Network Allocation Vector (NAV) signal in the F-RTS-PLL trigger frame to prevent other data from competing for a channel with the current data within a preset time. The F-TRG trigger frame may be transmitted after the above-described step S130 and before the above-described step 140 within the NAV set in the F-RTS-PLL trigger frame. That is, after determining the half-duplex receiving STA and the half-duplex transmitting STA, the full-duplex AP may transmit the F-TRG trigger frame, and then the full-duplex AP may perform data transmission processing of transmitting data to the half-duplex receiving STA and data reception processing of receiving data from the half-duplex transmitting STA at the same time and the same frequency.

The F-TRG trigger frame may specify TX powers of a half-duplex receiving STA and a half-duplex transmitting STA, among others. In one implementation, the STA may use the same antenna for Receive (RX) and TX. The STA may use the same beamforming mode for RX and TX if beamforming or interference cancellation is used.

Fig. 3 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment. As shown in fig. 3, the full-duplex AP transmits an F-RTS-PLL trigger frame, where the F-RTS-PLL trigger frame specifies that STA-1 is a half-duplex receiving STA and that STA-2 and STA-3 need to report back whether they are STAs suitable for data transmission processing for transmitting data to the full-duplex AP, and STA-4, STA-5, and STA-6 are the other STAs described above.

In a NAV set in a trigger frame of the F-RTS-PLL, the STA-1 replies an F-CTS frame to the full-duplex AP; STA-2 and STA-3 both send RPT-N frames to the full-duplex AP, and STA-4 and STA-6 both send REQ-T frames to the full-duplex AP; the full-duplex AP selects STA-4 from 2 STAs of STA-4 and STA-6 as a half-duplex sending STA; the full-duplex AP sends an F-TRG trigger frame; the full-duplex AP performs data transmission processing for transmitting data to the STA-1 and data reception processing for receiving data from the STA-4 at the same time on the same frequency.

In one implementation, the interval between frames is a Short InterFrame Space (SIFS). Illustratively, as shown in fig. 3, the interval between the F-RTS-PLL trigger frame and the F-CTS frame is SIFS.

In one implementation, the full-duplex communication method may further include: after data transmission processing and data reception processing for current data are completed, an F-TRG trigger frame is transmitted to the selected half-duplex transmitting STA and half-duplex receiving STA, and then data transmission processing and data reception processing for next data are performed using the selected half-duplex transmitting STA and half-duplex receiving STA, where the F-TRG trigger frame is used to trigger the data reception processing and the data transmission processing.

In this embodiment, in the NAV set in the F-RTS-PLL trigger frame, after the full-duplex AP completes data transmission processing and data reception processing performed simultaneously at the same frequency for the first time, the full-duplex AP may trigger data transmission through the F-TRG trigger frame. That is, in the NAV set in the F-RTS-PLL trigger frame, a plurality of F-TRG trigger frames trigger a plurality of data transmissions, and the full-duplex AP performs data transmission processing and data reception processing at the same time and at the same time every time the F-TRG trigger frame is transmitted.

Fig. 4 and 5 are timing diagrams illustrating a method of full duplex communication according to an example embodiment. As shown in fig. 4 and 5, the full-duplex AP transmits an F-RTS-PLL trigger frame, which specifies that STA-1 is a half-duplex receiving STA and that STA-2 and STA-3 need to report back whether they are STAs suitable for data transmission processing for transmitting data to the full-duplex AP, and STA-4, STA-5, and STA-6 are the other STAs described above.

In a NAV set in a trigger frame of the F-RTS-PLL, the STA-1 replies an F-CTS frame to the full-duplex AP; STA-2 sends an RPT-N frame to the full-duplex AP, STA-3 sends an RPT-P frame to the full-duplex AP, and STA-4 and STA-6 both send REQ-T frames to the full-duplex AP; the full-duplex AP selects STA-3 from 3 STAs of STA-3, STA-4 and STA-6 as a half-duplex sending STA; the full-duplex AP sends an F-TRG trigger frame; the full-duplex AP simultaneously performs data transmission processing of transmitting data to the STA-1 and data receiving processing of receiving data from the STA-3 in a same frequency manner; the full-duplex AP sends the F-TRG trigger frame again; the full-duplex AP performs the data transmission processing of transmitting data to the STA-1 and the data reception processing of receiving data from the STA-3 at the same time in the same frequency again.

In one implementation, the full-duplex communication method may further include: after the data transmission processing and the data reception processing for the current data are completed, the selected half-duplex transmission STA and the half-duplex reception STA are directly used to perform the data transmission processing and the data reception processing for the next data without transmitting an F-TRG trigger frame to the selected half-duplex transmission STA and the selected half-duplex reception STA, wherein the F-TRG trigger frame is used to trigger the data reception processing and the data transmission processing.

In this embodiment, in the NAV set in the F-RTS-PLL trigger frame, after the full-duplex AP completes the data transmission processing and the data reception processing performed simultaneously with the same frequency for the first time, the full-duplex AP may directly perform the data transmission processing and the data reception processing simultaneously with the same frequency again without transmitting the F-TRG trigger frame. That is, a plurality of data transmissions are triggered by a single F-TRG trigger frame within the NAV set in the F-RTS-PLL trigger frame.

Fig. 6 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment. As shown in fig. 6, the full-duplex AP transmits an F-RTS-PLL trigger frame, where the F-RTS-PLL trigger frame specifies that STA-1 is a half-duplex receiving STA and that STA-2 and STA-3 need to report back whether they are STAs suitable for data transmission processing for transmitting data to the full-duplex AP, and STA-4, STA-5, and STA-6 are the other STAs described above.

In a NAV set in a trigger frame of the F-RTS-PLL, the STA-1 replies an F-CTS frame to the full-duplex AP; STA-2 sends an RPT-N frame to the full-duplex AP, STA-3 sends an RPT-P frame to the full-duplex AP, and STA-4 and STA-6 both send REQ-T frames to the full-duplex AP; the full-duplex AP selects STA-3 from 3 STAs of STA-3, STA-4 and STA-6 as a half-duplex sending STA; the full-duplex AP sends an F-TRG trigger frame; the full-duplex AP simultaneously performs data transmission processing of transmitting data to the STA-1 and data receiving processing of receiving data from the STA-3 in a same frequency manner; the full-duplex AP performs the data transmission processing of transmitting data to the STA-3 and the data reception processing of receiving data from the STA-1 at the same time in the same frequency again.

In one implementation, the full-duplex communication method may further include: after the data transmission processing and the data reception processing for the current data are completed, the processing of selecting the half-duplex transmission STA is re-executed.

In this embodiment, in the NAV set in the F-RTS-PLL trigger frame, after the full-duplex AP completes data transmission processing and data reception processing that are simultaneously performed at the same frequency for the first time, the full-duplex AP may reselect the half-duplex transmission STA, and after the half-duplex transmission STA is reselected, the full-duplex AP may simultaneously perform data transmission processing for transmitting data to the half-duplex reception ATS and data reception processing for receiving data from the reselected half-duplex transmission STA at the same frequency again.

Fig. 7 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment. As shown in fig. 7, the full-duplex AP transmits an F-RTS-PLL trigger frame, where the F-RTS-PLL trigger frame specifies that STA-1 is a half-duplex receiving STA and that STA-2 and STA-3 need to report back whether they are STAs suitable for data transmission processing for transmitting data to the full-duplex AP, and STA-4, STA-5, and STA-6 are the other STAs described above.

In a NAV set in a trigger frame of the F-RTS-PLL, the STA-1 replies an F-CTS frame to the full-duplex AP; STA-2 sends an RPT-N frame to the full-duplex AP, STA-3 sends an RPT-P frame to the full-duplex AP, and STA-4 and STA-6 both send REQ-T frames to the full-duplex AP; the full-duplex AP selects STA-3 from 3 STAs of STA-3, STA-4 and STA-6 as a half-duplex sending STA; the full-duplex AP sends an F-TRG trigger frame; the full-duplex AP simultaneously performs data transmission processing of transmitting data to the STA-1 and data receiving processing of receiving data from the STA-3 in a same frequency manner; the full-duplex AP reselects the STA-4 from 3 STAs of the STA-3, the STA-4 and the STA-6 as a half-duplex sending STA; the full-duplex AP sends an F-TRG trigger frame; the full-duplex AP performs the data transmission processing of transmitting data to the STA-1 and the data reception processing of receiving data from the STA-4 at the same time in the same frequency again.

In one implementation, the full-duplex communication method may further include: after the data receiving processing and the data sending processing are completed, response sending processing for sending an ACK response signal to the half-duplex sending STA and response receiving processing for receiving the ACK response signal from the half-duplex receiving STA are carried out at the same time.

In this embodiment, each time data transmission processing and data reception processing that are performed simultaneously at the same frequency are completed, the full-duplex AP performs response transmission processing for transmitting an ACK response signal to the half-duplex transmitting STA and response reception processing for receiving an ACK response signal from the half-duplex receiving STA at the same frequency. For example, in fig. 3, after the full-duplex AP simultaneously performs the data transmission processing of transmitting data to STA-1 and the data reception processing of receiving data from STA-4 on the same frequency, the response transmission processing of transmitting an ACK response signal to STA-4 and the response reception processing of receiving an ACK response signal from STA-1 are simultaneously performed on the same frequency. For another example, in fig. 4 and 7, after the full-duplex AP simultaneously performs the data transmission processing of transmitting data to the STA-1 and the data reception processing of receiving data from the STA-3 at the same frequency, the full-duplex AP simultaneously performs the response transmission processing of transmitting an ACK response signal to the STA-3 and the response reception processing of receiving an ACK response signal from the STA-1 at the same frequency.

In one implementation, the full-duplex communication method may further include: in the data transmission processing and the data reception processing, transmission of an ACK response signal is also performed.

In this embodiment, an ACK + data aggregation format may be used for transmission, that is, an ACK response signal and data may be combined together, and the combined signal may be sent and received at the same time and in the same frequency. As shown in fig. 5 and 6, the full-duplex AP combines the ACK response signal and the data together, and performs transmission processing and reception processing of ACK/data on the same frequency at the same time.

In one implementation, the data frame time length in the data transmission process is the same as the data frame time length in the data reception process.

In this embodiment, the frame time lengths of data in the data transmission processing and the data reception processing may be the same. As shown in fig. 3, the frame time lengths of data in the data transmission process and the data reception process that are simultaneously performed on the same frequency are the same.

Fig. 8 is a flow diagram illustrating a full-duplex communication method that may be applied to a full-duplex AP, such as the AP of fig. 1, according to an example embodiment. As shown in fig. 8, the full-duplex communication method may include the following steps.

In step S810, an F-RTS frame from a station STA is received.

In this embodiment, the full-duplex AP may receive the F-RTS frame from the STA and may determine the half-duplex transmitting STA according to the F-RTS frame, and for example, the full-duplex AP may determine the STA that transmits the F-RTS frame as the half-duplex transmitting STA. The half-duplex transmitting STA may be a half-duplex STA or a full-duplex STA.

In step S820, an F-CTS-PLL trigger frame is transmitted.

In this embodiment, an F-CTS-PLL trigger frame is designed, and the full-duplex AP may designate a transmitting STA of the F-RTS frame received in step S810 as a half-duplex transmitting STA through the F-CTS-PLL trigger frame.

In step S830, an information frame from the station STA is received.

In this embodiment, the full-duplex AP may receive the information frame sent by each STA. Each STA may be a half-duplex STA or a full-duplex STA. The information frame transmitted by each STA may be a frame indicating whether the STA is suitable as a half-duplex receiving STA.

In step S840, a half-duplex receiving STA is selected according to the information frame.

In this embodiment, the full-duplex AP may select one STA from the STAs as a half-duplex receiving STA according to the information frame received from each STA. Wherein the half-duplex receiving STA may be either a half-duplex STA or a full-duplex STA.

In step S850, a data transmission process of transmitting data to the half-duplex receiving STA and a data reception process of receiving data from the half-duplex transmitting STA, which is the STA transmitting the F-RTS frame, are performed at the same time and the same frequency.

In the full-duplex communication method of the present embodiment, the full-duplex AP receives the F-RTS frame, determines the STA which transmits the F-RTS frame as a half-duplex transmitting STA, and transmits the F-CTS-PLL trigger frame for specifying the determined half-duplex transmitting STA, and determines the half-duplex receiving STA from the information frame received from each STA, and the full-duplex AP simultaneously performs the data transmission processing of transmitting data to the half-duplex receiving STA and the data reception processing of receiving data from the half-duplex transmitting STA on the same frequency, thereby realizing the full-duplex communication, and since the half-duplex transmitting STA is determined from the F-RTS frame and the half-duplex receiving STA is determined from the information frame received from each STA, it is possible to appropriately and efficiently select the half-duplex receiving STA and the half-duplex transmitting STA.

In one implementation, the F-CTS-PLL Trigger frame specifies a Trigger response frame (TB PPDU), which is an uplink (uplink) Orthogonal Frequency Division Multiple Access (OFDMA) packet (packet), where the F-CTS-PLL Trigger frame specifies whether an STA requiring data reception processing reports using an RU specified by a full-duplex AP is suitable for reporting, and other STAs use an RARU for reporting.

In one implementation, the F-CTS-PLL trigger frame further specifies STAs that need to report back whether the data reception process is suitable, wherein the information frame includes any one or more of the following:

an RPT-P frame sent by the STA needing the report back specified in the F-CTS-PLL trigger frame and used for indicating that the STA is suitable for the data receiving processing;

an RPT-N frame transmitted by the STA requiring the report back specified in the F-CTS-PLL trigger frame to indicate that the STA is not suitable for the data reception process;

a REQ-R frame transmitted by a STA other than the STA specified in the F-CTS-PLL trigger frame to indicate that the STA is suitable for the data reception processing.

In this embodiment, the F-CTS-PLL trigger frame may further specify STAs that need to report back whether they are suitable for data reception processing for receiving data from the full-duplex AP, and thus the F-CTS-PLL trigger frame may specify one half-duplex transmitting STA and one or more STAs that need to report back whether they are suitable for data reception processing.

The STA that needs to report back whether it is suitable for data reception processing may report back whether it is suitable for data reception processing to the full-duplex AP using the RU designated by the full-duplex AP. For example, the STA may determine whether it is suitable for data reception processing according to the strength of a received F-RTS frame transmitted by a half-duplex transmitting STA, and if it is determined that it is suitable for data reception processing, the STA may transmit an affirmative report to the full-duplex AP, where the affirmative report is a report indicating that it is suitable for data reception processing, and the affirmative report corresponds to an RPT-P frame; conversely, if it is determined that the STA is not suitable for data reception processing, the STA may transmit a negative report to the full-duplex AP, the negative report indicating that the STA is not suitable for data reception processing, the negative report corresponding to the RPT-N frame.

It can be appreciated that in addition to the STA specified by the F-CTS-PLL trigger frame, other STAs not specified by the F-CTS-PLL trigger frame may use the RARU to report to the full-duplex AP that they are suitable for data reception processing for receiving data from the full-duplex AP. In this embodiment, the other STA may use the RARU to transmit an affirmative report to the full-duplex AP, where the affirmative report is a report indicating that the other STA is suitable for data reception processing for receiving data from the full-duplex AP, and the affirmative report corresponds to a REQ-R frame.

In one implementation, the STA that receives the F-CTS-PLL trigger frame determines whether it is an STA suitable for the data reception process according to the strength of the received F-RTS frame.

In this embodiment, the STA that receives the F-CTS-PLL trigger frame can know the time when the half-duplex transmitting STA transmits the F-RTS frame to the full-duplex AP, and each STA can determine whether it is an STA that is suitable for data reception processing for receiving data from the full-duplex AP according to the strength of the received F-RTS frame. For example, each STA may compare the value of the RSSI of the F-RTS frame with a threshold, and if the value of the RSSI is higher than the threshold, determine that the STA is an STA unsuitable for data reception processing; otherwise, it is determined that itself is an STA suitable for data reception processing.

In one implementation, the step S840 may include:

selecting the STA which sends the REQ-R frame as the half-duplex receiving STA under the condition that the information frame comprises an RPT-N frame and a REQ-R frame but does not comprise an RPT-P frame; or

Selecting the STA which sends the RPT-P frame or the STA which sends the REQ-R frame as the half-duplex receiving STA under the condition that the information frame comprises the RPT-N frame, the REQ-R frame and the RPT-P frame; or

And under the condition that the information frame comprises an RPT-N frame and an RPT-P frame but does not comprise a REQ-R frame, selecting the STA which sends the RPT-P frame as the half-duplex receiving STA.

In this embodiment, the information frames received by the full-duplex AP may include, but are not limited to, the above-mentioned RPT-P frames, RPT-N frames, REQ-R frames, and the like. In one implementation, the data frame time lengths of the RPT-P frame, the RPT-N frame, and the REQ-R frame may be the same. For example, the F-CTS-PLL trigger frame may predefine or specify that the data frame time lengths of the RPT-P frame, the RPT-N frame, and the REQ-R frame are the same. The RPT-P frame, the RPT-N frame, and the REQ-R frame are all from different STAs and are part of an uplink OFDMA packet, where the RPT-P frame and the RPT-N frame are transmitted using RUs specified by the F-CTS-PLL trigger frame, and the REQ-R frame is transmitted using RARUs.

It is noted that the F-RTS-PLL trigger frame is substantially similar to the F-CTS-PLL trigger frame, except that the triggered TB PPDU is delayed and re-enabled after receiving the F-CTS frame.

If the RPT-N frame and the REQ-R frame are received but the RPT-P frame is not received, the STA which indicates whether the data receiving processing is suitable for reporting is not suitable for the data receiving processing, and other STAs which are not specified by the F-CTS-PLL trigger frame are suitable for the data receiving processing, so that the other STAs which send the REQ-R frame can be selected as half-duplex receiving STAs.

When receiving the RPT-N frame, the REQ-R frame, and the RPT-P frame, it indicates that the STA that needs to report whether or not the data reception processing is appropriate is also suitable for the data reception processing, and the other STA that is not designated by the F-CTS-PLL trigger frame is also suitable for the data reception processing.

If the RPT-N frame and the RPT-P frame are received but the REQ-R frame is not received, the data receiving processing is suitable for the STA which needs to report whether the data receiving processing is suitable or not, and other STAs which are not specified by the F-CTS-PLL trigger frame are not suitable for the data receiving processing, so that the STA which sends the RPT-P frame can be selected as a half-duplex receiving STA.

In the present embodiment, the F-TRG trigger frame may be transmitted after the above-described step S840 and before the above-described step 850 within the NAV set in the F-RTS frame. That is, after determining the half-duplex receiving STA and the half-duplex transmitting STA, the full-duplex AP may transmit the F-TRG trigger frame, and then the full-duplex AP may perform data transmission processing of transmitting data to the half-duplex receiving STA and data reception processing of receiving data from the half-duplex transmitting STA at the same time and the same frequency.

Fig. 9 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment. As shown in fig. 9, STA-1 sends an F-RTS frame; the full-duplex AP receives the F-RTS frame, determines STA-1 as a half-duplex transmitting STA, and transmits a F-CTS-PLL trigger frame, which specifies that STA-1 is a half-duplex transmitting STA and that STA-2 and STA-3 need to report back whether they are STAs suitable for data reception processing for receiving data from the full-duplex AP, and STA-4, STA-5, and STA-6 are the other STAs described above.

In the NAV set in the F-RTS frame, STA-2 sends an RPT-N frame to the full-duplex AP, STA-3 sends an RPT-P frame to the full-duplex AP, and STA-5 and STA-6 both send REQ-R frames to the full-duplex AP; the full-duplex AP selects STA-3 from 3 STAs of STA-3, STA-5 and STA-6 as a half-duplex receiving STA; the full-duplex AP sends an F-TRG trigger frame; the full-duplex AP performs data transmission processing for transmitting data to the STA-3 and data reception processing for receiving data from the STA-1 at the same time on the same frequency.

In one implementation, the full-duplex communication method may further include: after the data transmission processing and the data reception processing for the current data are completed, an F-TRG trigger frame is transmitted to the selected half-duplex transmitting STA and the half-duplex receiving STA, and then the selected half-duplex receiving STA and the half-duplex transmitting STA are used for performing the data transmission processing and the data reception processing for the next data, wherein the F-TRG trigger frame is used for triggering the data reception processing and the data transmission processing.

In this embodiment, in the NAV set in the F-RTS frame, after the full-duplex AP completes data transmission processing and data reception processing that are simultaneously performed at the same frequency for the first time, the full-duplex AP may trigger data transmission by using the F-TRG trigger frame. That is, in the NAV set in the F-RTS frame, multiple data transmissions are triggered by multiple F-TRG trigger frames, and the full-duplex AP performs data transmission processing and data reception processing simultaneously with the same frequency every time the F-TRG trigger frame is transmitted.

Fig. 10 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment. As shown in fig. 10, STA-1 sends an F-RTS frame; the full-duplex AP receives the F-RTS frame, determines STA-1 as a half-duplex transmitting STA, and transmits a F-CTS-PLL trigger frame, which specifies that STA-1 is a half-duplex transmitting STA and that STA-2 and STA-3 need to report back whether they are STAs suitable for data reception processing for receiving data from the full-duplex AP, and STA-4, STA-5, and STA-6 are the other STAs described above.

In the NAV set in the F-RTS frame, STA-2 sends an RPT-N frame to the full-duplex AP, STA-3 sends an RPT-P frame to the full-duplex AP, and STA-4 and STA-6 both send REQ-R frames to the full-duplex AP; the full-duplex AP selects STA-3 from 3 STAs of STA-3, STA-4 and STA-6 as a half-duplex receiving STA; the full-duplex AP sends an F-TRG trigger frame; the full-duplex AP simultaneously performs data transmission processing of transmitting data to the STA-3 and data receiving processing of receiving data from the STA-1 in a same frequency manner; the full-duplex AP sends the F-TRG trigger frame again; the full-duplex AP performs the data transmission processing of transmitting data to the STA-3 and the data reception processing of receiving data from the STA-1 at the same time in the same frequency again.

In one implementation, the full-duplex communication method may further include: after the data transmission processing and the data reception processing for the current data are completed, the selected half-duplex transmitting STA and the selected half-duplex receiving STA are directly used for performing the data transmission processing and the data reception processing for the next data without transmitting an F-TRG trigger frame to the selected half-duplex transmitting STA and the selected half-duplex receiving STA, wherein the F-TRG trigger frame is used for triggering the data reception processing and the data transmission processing.

In this embodiment, in the NAV set in the F-RTS frame, after the full-duplex AP completes the data transmission processing and the data reception processing performed simultaneously and at the same frequency for the first time, the full-duplex AP may directly perform the data transmission processing and the data reception processing at the same frequency again and at the same time without transmitting the F-TRG trigger frame. That is, a plurality of data transmissions are triggered by a single F-TRG trigger frame within the NAV set in the F-RTS frame.

Fig. 11 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment. As shown in fig. 11, STA-1 sends an F-RTS frame; the full-duplex AP receives the F-RTS frame, determines STA-1 as a half-duplex transmitting STA, and transmits a F-CTS-PLL trigger frame, which specifies that STA-1 is a half-duplex transmitting STA and that STA-2 and STA-3 need to report back whether they are STAs suitable for data reception processing for receiving data from the full-duplex AP, and STA-4, STA-5, and STA-6 are the other STAs described above.

In the NAV set in the F-RTS frame, STA-2 sends an RPT-N frame to the full-duplex AP, STA-3 sends an RPT-P frame to the full-duplex AP, and STA-4 and STA-6 both send REQ-R frames to the full-duplex AP; the full-duplex AP selects STA-3 from 3 STAs of STA-3, STA-4 and STA-6 as a half-duplex receiving STA; the full-duplex AP sends an F-TRG trigger frame; the full-duplex AP simultaneously performs data transmission processing of transmitting data to the STA-3 and data receiving processing of receiving data from the STA-1 in a same frequency manner; the full-duplex AP performs the data transmission processing of transmitting data to the STA-1 and the data reception processing of receiving data from the STA-3 at the same time in the same frequency again.

In one implementation, the full-duplex communication method may further include: after the data transmission processing and the data reception processing for the current data are completed, the processing of selecting the half-duplex receiving STA is re-executed.

In this embodiment, in the NAV set in the F-RTS frame, after the full-duplex AP completes data transmission processing and data reception processing that are simultaneously performed at the same frequency for the first time, the full-duplex AP may reselect the half-duplex receiving STA, and after the half-duplex receiving STA is reselected, the full-duplex AP may simultaneously perform data transmission processing for transmitting data to the reselected half-duplex receiving STA and data reception processing for receiving data from the half-duplex transmitting STA at the same frequency again.

Fig. 12 is a timing diagram illustrating a method of full duplex communication in accordance with an example embodiment. As shown in fig. 12, STA-1 transmits an F-RTS frame; the full-duplex AP receives the F-RTS frame, determines STA-1 as a half-duplex transmitting STA, and transmits a F-CTS-PLL trigger frame, which specifies that STA-1 is a half-duplex transmitting STA and that STA-2 and STA-3 need to report back whether they are STAs suitable for data reception processing for receiving data from the full-duplex AP, and STA-4, STA-5, and STA-6 are the other STAs described above.

In the NAV set in the F-RTS frame, STA-2 sends an RPT-N frame to the full-duplex AP, STA-3 sends an RPT-P frame to the full-duplex AP, and STA-4 and STA-6 both send REQ-R frames to the full-duplex AP; the full-duplex AP selects STA-3 from 3 STAs of STA-3, STA-4 and STA-6 as a half-duplex receiving STA; the full-duplex AP sends an F-TRG trigger frame; the full-duplex AP simultaneously performs data transmission processing of transmitting data to the STA-3 and data receiving processing of receiving data from the STA-1 in a same frequency manner; the full-duplex AP reselects STA-4 from 3 STAs of STA-3, STA-4 and STA-6 as a half-duplex receiving STA; the full-duplex AP sends an F-TRG trigger frame; the full-duplex AP performs the data transmission processing of transmitting data to the STA-4 and the data reception processing of receiving data from the STA-1 at the same time in the same frequency again.

In this embodiment, each time data transmission processing and data reception processing that are performed simultaneously at the same frequency are completed, the full-duplex AP performs response transmission processing for transmitting an ACK response signal to the half-duplex transmitting STA and response reception processing for receiving an ACK response signal from the half-duplex receiving STA at the same frequency. Illustratively, as shown in fig. 9, 10 and 12, the full-duplex AP performs, at the same time, a data transmission process of transmitting data to STA-3 and a data reception process of receiving data from STA-1, and then performs, at the same time, an acknowledgement transmission process of transmitting an ACK acknowledgement signal to STA-1 and an acknowledgement reception process of receiving an ACK acknowledgement signal from STA-3.

In this embodiment, an ACK + data aggregation format may be used for transmission, that is, an ACK response signal and data may be combined together, and the combined signal may be sent and received at the same time and in the same frequency. As shown in fig. 11, the full-duplex AP combines the ACK acknowledgement signal and the data together, and performs transmission processing and reception processing of ACK/data on the same frequency at the same time.

In one implementation, the data length in the data transmission process is the same as the data frame time length in the data reception process.

In this embodiment, the frame time lengths of data in the data transmission processing and the data reception processing may be the same. As shown in fig. 9 to 10 and 12, the frame time lengths of data in the data transmission processing and the data reception processing which are simultaneously performed on the same frequency are the same.

Fig. 13 is a flow chart illustrating a full duplex communication method according to an example embodiment, which may be applied to a station STA, for example, any one of the STAs-1 through 6 in fig. 1. As shown in fig. 13, the full-duplex communication method may include the following steps.

In step S1310, an F-RTS-PLL trigger frame transmitted by the full-duplex access point AP is received.

In step S1320, an information frame is sent to the full-duplex AP according to the F-RTS-PLL trigger frame, where the F-RTS-PLL trigger frame is used to trigger sending of the information frame.

In this embodiment, an F-RTS-PLL trigger frame is designed, and the STA may receive the F-RTS-PLL trigger frame sent by the full-duplex AP. Since the F-RTS-PLL trigger frame is used to trigger the STA to send an information frame to the full-duplex AP, the STA sends an information frame to the full-duplex AP after receiving the F-RTS-PLL trigger frame. The STA may be a half-duplex STA or a full-duplex STA.

Information frames are also designed, and the full-duplex AP can determine half-duplex transmitting STAs according to the information frames transmitted by the STAs. In one implementation, the information frame may be a frame indicating whether the STA is suitable as a half-duplex transmitting STA, and accordingly, the full-duplex AP may select one STA from STAs transmitting the information frame as the half-duplex transmitting STA according to the information frame transmitted by each STA.

In step S1330, according to the F-TRG trigger frame sent by the full-duplex AP, performing data transmission processing with the full-duplex AP at the same time and with the other STA, where the F-TRG trigger frame is used to trigger the data transmission processing.

In this embodiment, an F-TRG trigger frame is designed, and the STA may receive the F-TRG trigger frame sent by the full-duplex AP. Since the F-TRG trigger frame is used to trigger the STA to perform data transmission processing with the full-duplex AP, after receiving the F-TRG trigger frame, the STA and another STA simultaneously perform data transmission processing with the full-duplex AP in the same frequency.

In one implementation, the F-TRG trigger frame may specify TX powers for a half-duplex receiving STA and a half-duplex transmitting STA. In one implementation, the STA uses the same antenna for data transmission processing and data reception processing, i.e., the STA may use the same antenna for both Receive (RX) and TX. The STA may use the same beamforming mode for RX and TX if beamforming or interference cancellation is used.

In the full-duplex communication method of this embodiment, the STA receives the F-RTS-PLL trigger frame sent by the full-duplex AP, sends an information frame to the full-duplex AP according to the F-RTS-PLL trigger frame, and performs data transmission processing with the full-duplex AP at the same time and in the same frequency as another STA according to the F-TRG trigger frame sent by the full-duplex AP, thereby realizing full-duplex communication.

In one implementation, the step S1330 may include:

if the STA is a half-duplex receiving STA specified in the F-RTS-PLL trigger frame, performing data reception processing for receiving data from the full-duplex AP in response to receiving the F-TRG trigger frame;

if the STA is not the half-duplex receiving STA, determining whether the STA is a half-duplex sending STA or not according to the F-TRG trigger frame;

and if the terminal determines that the terminal is the half-duplex transmitting STA, executing data transmission processing for transmitting data to the full-duplex AP.

In this embodiment, the full-duplex AP may directly specify the half-duplex receiving STA through the F-RTS-PLL trigger frame, and therefore the STA may determine whether itself is the specified half-duplex receiving STA according to the received F-RTS-PLL trigger frame. The full-duplex AP may also notify each STA of a half-duplex transmitting STA determined according to an information frame transmitted by each STA through the F-TRG trigger frame, and thus the STA may also determine whether itself is the determined half-duplex transmitting STA according to the received F-TRG trigger frame.

If the STA determines that it is the designated half-duplex receiving STA, the STA simultaneously performs the data reception process for receiving data from the full-duplex AP with the same frequency when another STA performs the data transmission process for transmitting data to the full-duplex AP after receiving the F-TRG trigger frame.

If the STA determines that the STA is not the appointed half-duplex receiving STA, after receiving the F-TRG trigger frame, whether the STA is the confirmed half-duplex sending STA is further determined according to the received F-TRG trigger frame. If the STA determines that it is the determined half-duplex transmitting STA, the STA simultaneously performs the data transmission processing for transmitting data to the full-duplex AP on the same frequency when another STA performs the data reception processing for receiving data from the full-duplex AP.

It can be understood that if the STA determines that it is not the designated half-duplex receiving STA and is not the determined half-duplex transmitting STA, neither data reception processing for receiving data from the full-duplex AP nor data transmission processing for transmitting data to the full-duplex AP is performed.

In the full-duplex communication method of the present embodiment, since the full-duplex AP specifies the half-duplex receiving STA through the F-RTS-PLL trigger frame and determines the half-duplex transmitting STA according to the information frame received from each STA, accordingly, the STA can determine the half-duplex receiving STA according to the F-RTS-PLL trigger frame transmitted by the full-duplex AP and determine the half-duplex transmitting STA according to the F-TRG trigger frame transmitted by the full-duplex AP, and thus it is possible to appropriately and efficiently determine the half-duplex receiving STA and the half-duplex transmitting STA.

In one implementation, the step S1320 may include: in the case where the STA is a half-duplex receiving STA specified in the F-RTS-PLL trigger frame, an F-CTS frame is replied to the full-duplex AP.

In this embodiment, the full-duplex AP may specify a half-duplex receiving STA through the F-RTS-PLL trigger frame, request the half-duplex receiving STA to reply with the F-CTS frame, and request the half-duplex receiving STA to wait for the F-TRG trigger frame. Thus, if the STA is a half-duplex receiving STA specified by the F-RTS-PLL trigger frame, the STA replies to the full-duplex AP with an F-CTS frame, i.e., the STA sends an F-CTS frame to the full-duplex AP. The F-CTS frame may be used in response to the F-RTS-PLL trigger frame, and the STA does not immediately perform data transmission processing with the full-duplex AP after replying to the F-CTS frame from the full-duplex AP, but waits until receiving the F-TRG trigger frame transmitted by the full-duplex AP. During which other STAs that receive the F-RTS-PLL trigger frame may report back to the full-duplex AP.

In this embodiment, the full-duplex AP may specify a Trigger response frame (TB PPDU) after the F-CTS frame through the F-RTS-PLL Trigger frame, where the Trigger response frame is an uplink (uplink) Orthogonal Frequency Division Multiple Access (OFDMA) data packet (packet), where the F-RTS-PLL Trigger frame specifies that an STA that needs to report whether data transmission processing is appropriate uses a Resource Unit (RU) specified by the full-duplex AP for reporting, and other STAs use a Random Access Unit (RARU) for reporting.

In one implementation, the step S1320 may include:

if the STA is specified in the F-RTS-PLL trigger frame and needs to report whether or not the data transmission processing for transmitting data to the full-duplex AP is appropriate, the STA confirms whether or not the STA itself is appropriate to perform the data transmission processing;

if the data transmission processing is confirmed to be suitable for the data transmission processing, replying an RPT-P frame for indicating that the STA is suitable for the data transmission processing to the full-duplex AP;

and if the data transmission processing is not suitable, replying an RPT-N frame for indicating that the STA is not suitable for the data transmission processing to the full-duplex AP.

In this embodiment, the full-duplex AP may further specify, through the F-RTS-PLL trigger frame, an STA that needs to report back whether it is suitable for data transmission processing for transmitting data to the full-duplex AP, and therefore the full-duplex AP may further specify, through the F-RTS-PLL trigger frame, a half-duplex receiving STA and one or more STAs that need to report back whether it is suitable for data transmission processing.

If the STA needs to report whether the data transmission processing is suitable, the STA may report whether the data transmission processing is suitable to the full-duplex AP by using the RU designated by the full-duplex AP.

In one implementation, the full-duplex communication method may further include:

and determining whether the STA is suitable for the data transmission processing according to the strength of the received F-CTS frame.

In this embodiment, if the STA needs to report whether the STA is suitable for data transmission processing, the STA may determine whether the STA is suitable for data transmission processing according to the strength of the received F-CTS frame transmitted by the half-duplex receiving STA. If it is determined that the STA is suitable for data transmission processing by itself, the STA may transmit an affirmative report to the full-duplex AP, wherein the affirmative report is a report indicating that the STA is suitable for data transmission processing, and the affirmative report corresponds to an RPT-P frame. Conversely, if it is determined that the STA is not suitable for data transmission processing (including no data to be transmitted), the STA may transmit a negative report to the full-duplex AP, where the negative report indicates that the STA is not suitable for data transmission processing, and the negative report corresponds to the RPT-N frame.

In one implementation, the step S1320 may include:

if the STA is other than the STA specified in the F-RTS-PLL trigger frame, the STA determines whether it is suitable for itself to perform data transmission processing for transmitting data to the full-duplex AP;

and if the data transmission processing is confirmed to be suitable, replying a REQ-T frame for indicating that the STA is suitable for the data transmission processing to the full-duplex AP.

In the present embodiment, even if the STA is not the STA specified by the F-RTS-PLL trigger frame, the STA can use the RARU to report to the full-duplex AP that it is appropriate to perform transmission processing for transmitting data to the full-duplex AP. Wherein the STA may transmit an affirmative report to the full-duplex AP using the RARU, the affirmative report being a report indicating that the STA is suitable for data transmission processing for transmitting data to the full-duplex AP, the affirmative report corresponding to the REQ-T frame.

The information frames transmitted by the STA may include, but are not limited to, the above-mentioned RPT-P frames, RPT-N frames, REQ-T frames, etc. In one implementation, the lengths of the data frame times (duration) of the RPT-P frame, the RPT-N frame, and the REQ-T frame may be the same. For example, the F-RTS-PLL trigger frame may predefine or specify that the data frame time lengths of the RPT-P frame, the RPT-N frame, and the REQ-T frame are the same. The RPT-P frame, the RPT-N frame, and the REQ-T frame are all from different STAs and are part of an uplink OFDMA packet, wherein the STAs use RUs specified by the F-RTS-PLL trigger frame to transmit the RPT-P frame or the RPT-N frame, or use RARUs to transmit the REQ-T frame.

If the information frame sent by the STA is an RPT-N frame, the STA cannot be determined as a half-duplex sending STA by the full-duplex AP; if the information frame sent by the STA is an RPT-P frame or a REQ-T frame, the STA may be determined by the full-duplex AP as a half-duplex sending STA.

In one implementation, after data reception processing between the full-duplex AP and the half-duplex receiving STA and data transmission processing between the full-duplex AP and the half-duplex transmitting STA are simultaneously performed at the same frequency in a Network Allocation Vector (NAV) set in the F-RTS-PLL trigger frame, the F-TRG trigger frame is not required to be transmitted again by the full-duplex AP, and data reception processing between the full-duplex AP and the half-duplex receiving STA and data transmission processing between the full-duplex AP and the half-duplex transmitting STA can be directly performed at the same frequency again. That is, a plurality of data transmissions are triggered by a single F-TRG trigger frame within the NAV set in the F-RTS-PLL trigger frame. For a specific example, refer to fig. 6 and the description related to fig. 6, which are not repeated herein.

In one implementation, after data reception processing between the full-duplex AP and the half-duplex receiving STA and data transmission processing between the full-duplex AP and the half-duplex transmitting STA are simultaneously performed with the same frequency in a NAV set in the F-RTS-PLL trigger frame, the full-duplex AP may reselect the half-duplex transmitting STA and transmit the F-TRG trigger frame again, and simultaneously perform data reception processing between the full-duplex AP and the half-duplex receiving STA and data transmission processing between the full-duplex AP and the half-duplex transmitting STA notified by the retransmitted F-TRG trigger frame with the same frequency. That is, a plurality of data transmissions are triggered by a plurality of F-TRG trigger frames within the NAV set in the F-RTS-PLL trigger frame. For a specific example, refer to fig. 7 and the description related to fig. 7, which are not repeated herein.

In one implementation, the full-duplex communication method may further include: and after the data transmission processing aiming at the current data is finished, carrying out transmission of the ACK response signal between the AP and the full duplex AP at the same time with the other STA in the same frequency.

In this embodiment, after data reception processing between the full-duplex AP and the half-duplex receiving STA and data transmission processing between the full-duplex AP and the half-duplex transmitting STA are performed at the same time, processing for the half-duplex transmitting STA to receive the ACK response signal from the full-duplex AP and processing for the half-duplex receiving STA to transmit the ACK response signal to the full-duplex AP are performed at the same time. Specific examples can be seen in fig. 3-4 and 7 and the foregoing description with respect to fig. 3-4 and 7, and are not repeated herein.

In one implementation, the full-duplex communication method may further include: in the data transmission process, an ACK response signal is also transmitted.

In this embodiment, an ACK + data aggregation format may be used for transmission, that is, an ACK response signal and data may be combined together, and the combined signal may be sent and received at the same time and in the same frequency. Specific examples can be seen in fig. 5-6 and the foregoing description related to fig. 5-6, and are not repeated herein.

In one implementation, the data transmission process includes a data frame time length in a data transmission process that is the same as a data frame time length in a data reception process that is the same as the data transmission process.

Fig. 14 is a flow chart illustrating a full duplex communication method according to an example embodiment, which may be applied to a station STA, for example, any one of the STAs-1 through 6 in fig. 1. As shown in fig. 14, the full-duplex communication method may include the following steps.

In step S1410, an F-RTS frame is sent to the full-duplex access point AP.

In this embodiment, the STA may send an F-RTS frame to the full-duplex AP. Accordingly, the full-duplex AP may determine a half-duplex transmitting STA from the F-RTS frame, and the full-duplex AP may determine the STA that transmits the F-RTS frame as the half-duplex transmitting STA, for example. The half-duplex transmitting STA may be a half-duplex STA or a full-duplex STA.

In step S1420, the F-TRG trigger frame transmitted by the full-duplex AP is received.

In step S1430, according to the F-TRG trigger frame, when another STA performs data reception processing for receiving data from the full-duplex AP, data transmission processing for transmitting data to the full-duplex AP is performed at the same time and in the same frequency, where the F-TRG trigger frame is used to trigger the data transmission processing.

In this embodiment, an F-TRG trigger frame is designed, and the STA may receive the F-TRG trigger frame sent by the full-duplex AP. Since the F-TRG trigger frame is used to trigger the STA to perform data transmission processing for transmitting data to the full-duplex AP, after receiving the F-TRG trigger frame, the STA performs data transmission processing, and another STA performs data reception processing for receiving data from the full-duplex AP at the same time and in the same frequency as the data transmission processing. Thus, full duplex communication may be achieved by one full duplex AP, one half duplex receiving STA, and one half duplex transmitting STA.

The full-duplex communication method of the embodiment transmits an F-RTS frame to a full-duplex AP, receives an F-TRG trigger frame transmitted by the full-duplex AP, and performs data transmission processing on the other STA at the same time while performing data reception processing according to the F-TRG trigger frame, thereby realizing full-duplex communication. Since the half-duplex transmitting STA is determined from the F-RTS frame, the half-duplex transmitting STA can be appropriately and efficiently selected.

In one implementation, if the STA does not send the F-RTS frame to the full-duplex AP, the full-duplex communication method may include: receiving an F-CTS-PLL trigger frame sent by the full-duplex AP; sending an information frame to the full-duplex AP according to the F-CTS-PLL trigger frame, wherein the F-CTS-PLL trigger frame is used for triggering the sending of the information frame; receiving an F-TRG trigger frame sent by the full-duplex AP; and executing data receiving processing for receiving data from the full-duplex AP according to the F-TRG trigger frame, wherein the F-TRG trigger frame is also used for triggering the data receiving processing. For a detailed description, reference is made to the related description above, and further description is omitted here.

In one implementation, sending an information frame to the full-duplex AP according to the F-CTS-PLL trigger frame includes: in the case where the STA is an STA that needs to report back whether it is suitable for performing the data reception processing, which is specified in the F-CTS-PLL trigger frame, the STA confirms whether it is suitable for performing the data reception processing itself; if the data receiving processing is determined to be suitable for the data receiving processing, replying an RPT-P frame for indicating that the STA is suitable for the data receiving processing to the full-duplex AP; and if the data receiving processing is not suitable, replying an RPT-N frame for indicating that the STA is not suitable for the data receiving processing to the full-duplex AP. For a detailed description, reference is made to the related description above, and further description is omitted here.

In one implementation, sending an information frame to the full-duplex AP according to the F-CTS-PLL trigger frame includes: if the STA is other than the STA specified in the F-CTS-PLL trigger frame, the STA confirms whether it is suitable for performing the data reception processing; and if the data receiving processing is confirmed to be suitable for the data receiving processing, replying a REQ-R frame for indicating that the STA is suitable for the data receiving processing to the full-duplex AP. For a detailed description, reference is made to the related description above, and further description is omitted here.

In one implementation, the full-duplex communication method may further include: after the data transmission processing for the current data is completed, when the other STA performs response transmission processing for transmitting an ACK response signal to the full-duplex AP, response receiving processing for receiving the ACK response signal from the full-duplex AP is performed at the same time in the same frequency; after the data reception processing for the current data is completed, when the other STA performs the response reception processing of receiving the ACK response signal from the full-duplex AP, the response transmission processing of transmitting the ACK response signal to the full-duplex AP is performed at the same time with the same frequency. For a detailed description, reference is made to the related description above, and further description is omitted here.

In this embodiment, an ACK + data aggregation format may be used for transmission, that is, an ACK response signal and data may be combined together, and the combined signal may be sent and received at the same time and in the same frequency. For a specific example, refer to fig. 11 and the description related to fig. 11, which are not described herein again.

In one implementation, the full-duplex communication method may further include: and determining whether the STA is suitable for the data receiving processing according to the strength of the received F-RTS frame. For a detailed description, reference is made to the related description above, and further description is omitted here.

In one implementation, the data frame time (duration) lengths of the RPT-P frame, the RPT-N frame, and the REQ-R frame are the same. For example, the F-CTS-PLL trigger frame may predefine or specify that the data frame time lengths of the RPT-P frame, the RPT-N frame, and the REQ-R frame are the same. The RPT-P frame, the RPT-N frame, and the REQ-R frame are all from different STAs and are part of an uplink OFDMA packet, where a STA transmits either an RPT-P frame or an RPT-N frame using an RU specified by an F-CTS-PLL trigger frame, or transmits a REQ-R frame using a RARU.

In one implementation, the same antenna is used for data transmission processing and data reception processing, i.e., the STA may use the same antenna for both Receive (RX) and TX. The STA may use the same beamforming mode for RX and TX if beamforming or interference cancellation is used.

Fig. 15 illustrates a full-duplex communication apparatus according to an exemplary embodiment, which is applied to a full-duplex access point AP. As shown in fig. 15, the full-duplex communications apparatus 1500 may include a transmitting module 1510, a receiving module 1520, a selecting module 1530, and a processing module 1540.

The sending module 1510 is configured to send a F-RTS-PLL trigger frame. The receiving module 1520 is configured to receive an information frame from a station STA, where the F-RTS-PLL trigger frame is used to trigger sending of the information frame. The selection module 1530 is connected to the receiving module 1520 and is configured to select a half-duplex transmitting STA according to the information frame. The processing module 1540 is connected to the transmitting module 1510 and the selecting module 1530, and is configured to perform a data receiving process of receiving data from the half-duplex transmitting STA and a data transmitting process of transmitting data to a half-duplex receiving STA, which is specified in the F-RTS-PLL trigger frame, simultaneously on the same frequency.

Fig. 16 is a block diagram illustrating a full-duplex communication apparatus according to an exemplary embodiment, which is applied to a full-duplex access point AP. As shown in fig. 16, the full-duplex communication device may include a receiving module 1610, a transmitting module 1620, a selecting module 1630, and a processing module 1640.

The receiving module 1610 is configured to receive an F-RTS frame and an information frame from a station STA. The transmitting module 1620 is connected to the receiving module 1610, and is configured to transmit a F-CTS-PLL trigger frame, where the F-CTS-PLL trigger frame is used to trigger the information frame to be transmitted. The selecting module 1630 is connected to the receiving module 1610 and is configured to select a half-duplex receiving STA according to the information frame. The processing module 1640 is connected to the selecting module 1630 and the receiving module 1610, and is configured to perform a data transmission process of transmitting data to the half-duplex receiving STA and a data reception process of receiving data from a half-duplex transmitting STA, which is an STA transmitting the F-RTS frame, simultaneously on the same frequency.

Fig. 17 is a block diagram illustrating a full duplex communication apparatus according to an exemplary embodiment, applied to a station STA. As shown in fig. 17, the full-duplex communications apparatus 1700 can include a receiving module 1710, a transmitting module 1720, and a processing module 1730.

The receiving module 1710 is configured to receive an F-RTS-PLL trigger frame sent by the full-duplex access point AP. The sending module 1720 is connected to the receiving module 1710, and is configured to send an information frame to the full-duplex AP according to the F-RTS-PLL trigger frame, where the F-RTS-PLL trigger frame is used to trigger sending of the information frame. The processing module 1730 is connected to the receiving module 1710, and is configured to perform data transmission processing with the full-duplex AP at the same time and in the same frequency with another STA according to an F-TRG trigger frame sent by the full-duplex AP, where the F-TRG trigger frame is used to trigger the data transmission processing.

Fig. 18 is a block diagram illustrating a full duplex communication apparatus according to an exemplary embodiment, applied to a station STA. As shown in fig. 18, the full-duplex communication apparatus may include a transmitting module 1810, a receiving module 1820, and a processing module 1830.

The sending module 1810 is configured to send an F-RTS frame to the full-duplex access point AP. The receiving module 1820 is configured to receive an F-TRG trigger frame sent by the full-duplex AP. The processing module 1830 is connected to the receiving module 1820, and configured to perform data transmission processing for transmitting data to the full-duplex AP simultaneously with the same frequency according to the F-TRG trigger frame when another STA performs data reception processing for receiving data from the full-duplex AP, where the F-TRG trigger frame is used to trigger the data transmission processing.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

Fig. 19 is a block diagram illustrating a hardware architecture of an apparatus 1900 for full duplex communication according to an example embodiment. Referring to fig. 19, the apparatus 1900 may include a processor 901, a machine-readable storage medium 902 storing machine-executable instructions. The processor 901 and the machine-readable storage medium 902 may communicate via a system bus 903. Also, the processor 901 performs the full duplex communication method described above by reading machine executable instructions in the machine readable storage medium 902 corresponding to the full duplex communication logic.

The machine-readable storage medium 902 referred to herein may be any electronic, magnetic, optical, or other physical storage device that can contain or store information such as executable instructions, data, and the like. For example, the machine-readable storage medium may be: a RAM (random Access Memory), a volatile Memory, a non-volatile Memory, a flash Memory, a storage drive (e.g., a hard drive), a solid state drive, any type of storage disk (e.g., an optical disk, a dvd, etc.), or similar storage medium, or a combination thereof.

Fig. 20 is a block diagram illustrating an apparatus 2000 for full duplex communication in accordance with an example embodiment. For example, the apparatus 2000 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 20, the apparatus 2000 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the device 2000, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the apparatus 2000. Examples of such data include instructions for any application or method operating on device 2000, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power supply component 806 provides power to the various components of the device 2000. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 2000.

The multimedia component 808 includes a screen that provides an output interface between the device 2000 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 2000 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, audio component 810 includes a Microphone (MIC) configured to receive external audio signals when apparatus 2000 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 2000. For example, the sensor assembly 814 may detect an open/closed state of the device 2000, a relative positioning of components, such as a display and keypad of the device 2000, a change in position of the device 2000 or a component of the device 2000, the presence or absence of user contact with the device 2000, an orientation or acceleration/deceleration of the device 2000, and a change in temperature of the device 2000. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communications between the apparatus 2000 and other devices in a wired or wireless manner. The device 2000 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 2000 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer readable storage medium, such as the memory 804 including computer program instructions executable by the processor 820 of the apparatus 2000 to perform the full duplex communication method described above, is also provided.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terms used herein were chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the techniques in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A full-duplex communication method is applied to a full-duplex Access Point (AP), and is characterized by comprising the following steps:

sending an F-RTS-PLL trigger frame;

receiving an information frame from a station STA, wherein the F-RTS-PLL trigger frame is used for triggering the sending of the information frame;

selecting a half-duplex sending STA according to the information frame;

simultaneously performing data receiving processing for receiving data from the half-duplex transmitting STA and data transmitting processing for transmitting data to the half-duplex receiving STA in a same frequency, wherein the half-duplex receiving STA is specified in the F-RTS-PLL trigger frame;

the half-duplex receiving STA specified by the F-RTS-PLL trigger frame sends an F-CTS frame;

the STA receiving the F-RTS-PLL trigger frame determines whether the STA is suitable for the data transmission processing according to the strength of the received F-CTS frame;

the F-RTS-PLL trigger frame also specifies the STAs that need to report back whether they are suitable for the data transmission process.

2. A full-duplex communication method is applied to a full-duplex Access Point (AP), and is characterized by comprising the following steps:

receiving an F-RTS frame from a station STA;

sending a F-CTS-PLL trigger frame;

receiving an information frame from an STA, wherein the F-CTS-PLL trigger frame is used for triggering the sending of the information frame;

selecting a half-duplex receiving STA according to the information frame;

simultaneously performing data transmission processing for transmitting data to the half-duplex receiving STA and data reception processing for receiving data from the half-duplex transmitting STA in the same frequency, wherein the half-duplex transmitting STA is the STA for transmitting the F-RTS frame;

the STA receiving the F-CTS-PLL trigger frame determines whether the STA is suitable for the data receiving processing according to the strength of the received F-RTS frame;

the F-CTS-PLL trigger frame also specifies the STAs that need to report back whether they are eligible for the data reception process.

3. The method of claim 1 or 2, further comprising:

before the data transmission processing and the data reception processing are performed, an F-TRG trigger frame is transmitted to the selected half-duplex transmitting STA and half-duplex receiving STA, wherein the F-TRG trigger frame is used for triggering the data reception processing and the data transmission processing.

4. The method of claim 1 or 2, further comprising:

after data transmission processing and data reception processing for current data are completed, an F-TRG trigger frame is transmitted to the selected half-duplex transmitting STA and half-duplex receiving STA, and then data transmission processing and data reception processing for next data are performed using the selected half-duplex transmitting STA and half-duplex receiving STA, where the F-TRG trigger frame is used to trigger the data reception processing and the data transmission processing.

5. The method of claim 1 or 2, further comprising:

after the data transmission processing and the data reception processing for the current data are completed, the selected half-duplex transmission STA and the half-duplex reception STA are directly used to perform the data transmission processing and the data reception processing for the next data without transmitting an F-TRG trigger frame to the selected half-duplex transmission STA and the selected half-duplex reception STA, wherein the F-TRG trigger frame is used to trigger the data reception processing and the data transmission processing.

6. The method of claim 1 or 2, further comprising:

after the data transmission processing and the data reception processing for the current data are completed, the processing of selecting the half-duplex transmission STA is re-executed.

7. The method of claim 1 or 2, further comprising:

after the data receiving processing and the data sending processing are completed, response sending processing for sending an ACK response signal to the half-duplex sending STA and response receiving processing for receiving the ACK response signal from the half-duplex receiving STA are carried out at the same time.

8. The method of claim 1 or 2, further comprising:

in the data transmission processing and the data reception processing, transmission of an ACK response signal is also performed.

9. The method of claim 1,

wherein the information frame comprises any one or more of:

10. The method of claim 9, wherein selecting a half-duplex transmitting STA according to the information frame comprises:

11. The method of claim 2,

wherein the information frame comprises any one or more of:

12. The method of claim 11, wherein selecting a half-duplex receiving STA according to the information frame comprises:

13. The method according to any one of claims 1-2 and 9-12, wherein a data frame time length in the data transmission process is the same as a data frame time length in the data reception process.

14. A full duplex communication method is applied to a Station (STA), and is characterized by comprising the following steps:

receiving an F-RTS-PLL trigger frame sent by a full-duplex Access Point (AP);

sending an information frame to the full-duplex AP according to the F-RTS-PLL trigger frame, wherein the F-RTS-PLL trigger frame is used for triggering the sending of the information frame;

according to an F-TRG trigger frame sent by the full-duplex AP, carrying out data transmission processing with the full-duplex AP at the same time with another STA in the same frequency, wherein the F-TRG trigger frame is used for triggering the data transmission processing;

sending an information frame to the full-duplex AP according to the F-RTS-PLL trigger frame, comprising:

in the case that the STA is a half-duplex receiving STA specified in the F-RTS-PLL trigger frame, replying to the full-duplex AP with an F-CTS frame;

and determining whether the STA is suitable for data transmission processing according to the strength of the received F-CTS frame.

15. The method of claim 14, wherein sending an information frame to the full-duplex AP according to the F-RTS-PLL trigger frame comprises:

16. The method of claim 14, wherein sending an information frame to the full-duplex AP according to the F-RTS-PLL trigger frame comprises:

17. The method of claim 14, wherein performing the data transmission process with the full-duplex AP according to the F-TRG trigger frame transmitted by the full-duplex AP comprises:

18. A full duplex communication method is applied to a Station (STA), and is characterized by comprising the following steps:

sending an F-RTS frame to a full-duplex Access Point (AP);

receiving an F-TRG trigger frame sent by the full-duplex AP;

according to the F-TRG trigger frame, when another STA executes data receiving processing for receiving data from the full-duplex AP, data sending processing for sending data to the full-duplex AP is executed at the same time in the same frequency, wherein the F-TRG trigger frame is used for triggering the data sending processing;

and determining whether the STA is suitable for the data receiving processing according to the strength of the received F-RTS frame.

19. The method of claim 18,

if the F-RTS frame is not sent to the full-duplex AP, the method includes:

receiving an F-CTS-PLL trigger frame sent by the full-duplex AP;

sending an information frame to the full-duplex AP according to the F-CTS-PLL trigger frame, wherein the F-CTS-PLL trigger frame is used for triggering the sending of the information frame;

receiving an F-TRG trigger frame sent by the full-duplex AP;

and executing data receiving processing for receiving data from the full-duplex AP according to the F-TRG trigger frame, wherein the F-TRG trigger frame is also used for triggering the data receiving processing.

20. The method of claim 19, wherein sending an information frame to the full-duplex AP according to the F-CTS-PLL trigger frame comprises:

in the case where the STA is an STA that needs to report back whether it is suitable for performing the data reception processing, which is specified in the F-CTS-PLL trigger frame, the STA confirms whether it is suitable for performing the data reception processing itself;

if the data receiving processing is determined to be suitable for the data receiving processing, replying an RPT-P frame for indicating that the STA is suitable for the data receiving processing to the full-duplex AP;

and if the data receiving processing is not suitable, replying an RPT-N frame for indicating that the STA is not suitable for the data receiving processing to the full-duplex AP.

21. The method of claim 19, wherein sending an information frame to the full-duplex AP according to the F-CTS-PLL trigger frame comprises:

if the STA is other than the STA specified in the F-CTS-PLL trigger frame, the STA confirms whether it is suitable for performing the data reception processing;

and if the data receiving processing is confirmed to be suitable for the data receiving processing, replying a REQ-R frame for indicating that the STA is suitable for the data receiving processing to the full-duplex AP.

22. The method of any of claims 14-17 and 18-21, further comprising:

and after the data transmission processing aiming at the current data is finished, carrying out transmission of the ACK response signal between the AP and the full duplex AP at the same time with the other STA in the same frequency.

23. The method of any of claims 14-17 and 18-21, further comprising:

24. The method according to any of claims 14-17 and 18-21, wherein the data frame time length in the data transmission process is the same as the data frame time length in the data reception process.

25. The method according to any of claims 14-17 and 18-21, characterized in that the same antenna is used for data transmission processing and data reception processing.

26. A full-duplex communication device applied to a full-duplex Access Point (AP), the device comprising:

the sending module is used for sending an F-RTS-PLL trigger frame;

a receiving module, configured to receive an information frame from a station STA, where the F-RTS-PLL trigger frame is used to trigger sending of the information frame;

a selection module, configured to select a half-duplex transmitting STA according to the information frame;

a processing module, configured to perform data receiving processing for receiving data from the half-duplex transmitting STA and data transmitting processing for transmitting data to the half-duplex receiving STA at the same time in the same frequency, where the half-duplex receiving STA is specified in the F-RTS-PLL trigger frame;

the STA that receives the F-RTS-PLL trigger frame determines whether it is an STA suitable for the data transmission processing according to the strength of the received F-CTS frame.

27. A full-duplex communication device applied to a full-duplex Access Point (AP), the device comprising:

a receiving module, configured to receive an F-RTS frame and an information frame from a station STA;

a sending module, configured to send a F-CTS-PLL trigger frame, where the F-CTS-PLL trigger frame is used to trigger sending of the information frame;

a selection module for selecting a half-duplex receiving STA according to the information frame;

a processing module, configured to perform data transmission processing for transmitting data to the half-duplex receiving STA and data reception processing for receiving data from the half-duplex transmitting STA at the same time, where the half-duplex transmitting STA is an STA that transmits the F-RTS frame;

the STA which receives the F-CTS-PLL trigger frame determines whether it is an STA suitable for the data reception process according to the strength of the received F-RTS frame.

28. A full duplex communication device applied to a Station (STA), the device comprising:

the receiving module is used for receiving an F-RTS-PLL trigger frame sent by a full-duplex access point AP;

a sending module, configured to send an information frame to the full-duplex AP according to the F-RTS-PLL trigger frame, where the F-RTS-PLL trigger frame is used to trigger sending of the information frame;

a processing module, configured to perform data transmission processing with another STA simultaneously in the same frequency according to an F-TRG trigger frame sent by the full-duplex AP, where the F-TRG trigger frame is used to trigger the data transmission processing;

29. A full duplex communication device applied to a Station (STA), the device comprising:

a sending module, configured to send an F-RTS frame to a full-duplex access point AP;

a receiving module, configured to receive an F-TRG trigger frame sent by the full-duplex AP;

a processing module, configured to perform data transmission processing for transmitting data to the full-duplex AP simultaneously with the same frequency when another STA performs data reception processing for receiving data from the full-duplex AP according to the F-TRG trigger frame, where the F-TRG trigger frame is used to trigger the data transmission processing;

30. A non-transitory computer readable storage medium, wherein instructions in the storage medium, when executed by a processor, enable the processor to perform the method of any of claims 1-25.

31. A full duplex communication apparatus, comprising:

a processor;

a memory for storing processor-executable instructions,

wherein the processor is configured to: performing the method of any one of claims 1-25.