CN110890910B - Sector scanning method and related device - Google Patents

Abstract

The embodiment of the application provides a sector scanning method and a related device, wherein the sector scanning method comprises the steps that an initiator sends sector scanning parameters of the initiator to a responder on a first channel, receives the sector scanning parameters of the responder sent by the responder on the first channel, and carries out sector scanning on a second channel according to the sector scanning parameters of the responder; the frequency of the second channel is higher than the frequency of the first channel. The sector training method and device can reduce time consumption of sector training of the high-frequency channel and improve sector training efficiency.

Description

Sector scanning method and related device

technical field

The present application relates to communication technology, in particular to a sector scanning method and related devices in a wireless communication system.

Background technique

A wireless local area network (Wireless Local Area Network, WLAN) usually works in an unlicensed spectrum, which includes low frequency channels and high frequency channels. The wireless signal transmitted on the low-frequency channel attenuates relatively slowly, and the penetration effect is good, but the spectrum resource of the low-frequency channel is limited, so the transmission rate is limited. However, wireless signals transmitted on high-frequency channels attenuate relatively quickly and have poor penetration effects. However, high-frequency channels have abundant spectrum resources, and the transmission rate is relatively high within a short distance.

On high-frequency channels, the initiator and responder with multiple transmit and receive sectors can use beamforming (BeamForming, BF) training, also known as sector scanning, to align the transmit and receive sectors of the initiator and responder, according to the Aligned transceiver sectors for data transmission and reception can effectively increase the gain of the transceiver antenna to overcome signal attenuation and improve the transmission distance on the high-frequency channel.

During beamforming training on high-frequency channels, the initiator and responder may continuously switch sectors blindly for sector scanning, which makes sector scanning by the initiator and responder on high-frequency channels time-consuming Longer, resulting in less efficient sector scanning.

Contents of the invention

The present application provides a sector scanning method and a related device to improve sector scanning efficiency on high-frequency channels.

In the first aspect, the embodiment of the present application provides a sector scanning method, including:

The initiator sends the first frame including the sector scan parameters of the initiator to the responder on the first channel, and also receives the second frame including the sector scan parameters of the responder sent by the responder on the first channel ;

The initiator performs a sector scan on a second channel according to the sector scan parameters of the responder; the frequency of the second channel is higher than the frequency of the first channel.

In the second aspect, the embodiment of the present application may also provide a sector scanning method, including:

The responder receives a first frame including the initiator's sector scan parameters from the initiator on a first channel, and sends a second frame including the responder's sector scan parameters to the initiator on the first channel. frame;

The responder performs a sector scan on a second channel according to the sector scan parameters of the initiator; the frequency of the second channel is higher than the frequency of the first channel.

This method can reduce the overhead of signaling interaction on the high-frequency channel, and can also enable the initiator and the responder to perform sector scanning on the high-frequency channel according to the sector scan parameters of the opposite end, so that the initiator and the responder can perform a sector scan on the high-frequency channel. Accurate sector scanning on high-frequency channels avoids blind switching of sectors, thereby effectively reducing the time-consuming sector training on high-frequency channels and improving the efficiency of high-frequency sector training.

In the case of precise sector scanning of the initiator and the responder, the devices at the two ends of the transceiver can use their respective optimal transmit sectors and optimal receive sectors to communicate with the peer device on the high-frequency channel, that is, It realizes the directional sending and receiving of the devices at the sending and receiving ends, and improves the information transmission distance on the high-frequency channel.

On the basis of the sector scanning method described in any one of the first aspect or the second aspect, in an implementation manner, the sector scanning parameters of the initiator include at least one of the following information:

The start time of the initiator's sector scan, the number of sectors of the initiator, the number of antennas of the initiator, the indication information of the antenna mutual dissimilarity of the initiator, and the indication of the antenna mode mutual dissimilarity of the initiator information, the length of the training frame for the initiator to scan the sector, and the instruction information of the initiator's training mode;

Wherein, the number of sectors of the initiator is the number of sectors used by the initiator for sector scanning;

The number of antennas of the initiator is the number of antennas used by the initiator for sector scanning;

The indication information of the antenna reciprocity of the initiator is used to indicate: whether the optimal transmitting antenna of the initiator is the optimal receiving antenna of the initiator;

The indication information of the antenna mode mutuality of the initiator is used to indicate: whether the antenna weight corresponding to the transmitting antenna mode of the initiator is the antenna weight corresponding to the receiving antenna mode of the initiator;

The initiator's training mode indication information is used to indicate whether the initiator's training mode is a one-end oriented training mode or both ends oriented training mode.

The initiator's sector scan parameters include the start time of the initiator's sector scan and the length of the training frame of the initiator's sector scan, which can make the initiator and responder based on the start time and the The length of the training frame realizes synchronous sector switching, so that the initiator and responder use the same frequency or beat for sector switching, which realizes precise sector switching between the initiator and responder, and reduces the need for sector switching on high-frequency channels. Reduce the time-consuming area scanning and improve the efficiency of sector scanning.

In another practicable manner, when the initiator's training mode indication information is used to indicate that the initiator's training mode is a training mode with both ends oriented, the initiator's sector scanning parameters further include:

The indication information of the sector scan mode of the initiator; wherein, the indication information of the sector scan mode of the initiator is used to indicate the number of transmissions of the responder in each sector and the number of sector scans performed by the initiator corresponding relationship.

In yet another practicable manner, the sector scan parameters of the initiator further include at least one of the following information:

The frame type of the first frame, the indication information indicating whether the originator requests to perform sector scanning for transmission, the indication information indicating whether the originator requests sector scanning for reception, the indication information for the feedback type, whether the first frame carries the information of the receiving end The indication information of the training sequence, the length indication information of the training sequence;

Wherein, the indication information of the feedback type is used to indicate whether the transmission mode of the feedback information between the initiator and the responder adopts the tunnel transparent transmission mechanism OCT.

On the basis of the sector scan method described in any one of the first aspect or the second aspect, in an implementation manner, the sector scan parameters of the responder include at least one of the following information:

The starting time of sector scanning by the responding party, the number of sectors of the responding party, the number of antennas of the responding party, the indication information of the antenna reciprocity of the responding party, and the indication of the antenna mode reciprocity of the responding node information, the length of the training frame for sector scanning by the responder, and the training mode indication information of the responder;

Wherein, the number of sectors of the responder is the number of sectors used by the responder for sector scanning;

The number of antennas of the responder is the number of antennas used by the responder for sector scanning;

The indication information of the antenna mutuality of the responder is used to indicate: whether the optimal transmitting antenna of the responding party is the optimal receiving antenna of the responding party;

The indication information of the antenna pattern mutuality of the responding party is used to indicate: whether the antenna weight corresponding to the transmitting antenna mode of the responding party is the antenna weight corresponding to the receiving antenna mode of the responding party;

The training mode indication information of the responder is used to indicate whether the training mode of the responder is a one-end oriented training mode or both ends oriented training mode.

In another practicable manner, when the responder's training mode indication information is used to indicate that the responder's training mode is a training mode with both ends oriented, the responder's sector scan parameters further include:

The indication information of the sector scan mode of the responder; wherein, the indication information of the sector scan mode of the responder is used to indicate the number of times the initiator sends in each sector and the number of times the responder performs sector scans corresponding relationship.

In yet another practicable manner, the responder's sector scan parameters further include at least one of the following information:

The frame type of the second frame, the indication information indicating whether the responder requests to perform a transmit sector scan, the indication information indicating whether the responder requests to perform a receive sector scan, the indication information of the feedback type, and whether the second frame carries the receiver’s The indication information of the training sequence, the length indication information of the training sequence;

Wherein, the indication information of the feedback type is used to indicate whether the transmission mode of the feedback information between the initiator and the responder adopts the tunnel transparent transmission mechanism OCT.

In a third aspect, the embodiment of the present application may also provide a sector scanning method, including:

The network device sends a beacon frame including the sector scan parameters of the network device to the user equipment on the first channel, and performs sector scan on the second channel according to the sector scan parameters of the network device, and the second channel The frequency of is higher than the frequency of the first channel.

In a fourth aspect, the embodiment of the present application may also provide a sector scanning method, including:

The user equipment receives the beacon frame from the network device including the sector scan parameters of the network device on the first channel; and performs sector scan on the second channel according to the sector scan parameters of the network device, the second The frequency of the channel is higher than the frequency of the first channel.

The sector scanning method can reduce the overhead of signaling interaction on the high-frequency channel, and enable the user equipment to know the sector scanning parameters of the network equipment in advance, so that the network equipment and the user equipment can be in accordance with the sector scanning parameters of the network equipment. Perform sector scanning on high-frequency channels to realize precise sector scanning of network equipment and user equipment on high-frequency channels, avoiding blind switching of sectors, thereby effectively reducing the time-consuming sector training on high-frequency channels , to improve the efficiency of high-frequency sector training.

On the basis of the sector scanning method provided in the third or fourth aspect above, wherein the sector scanning parameters of the network device include at least one of the following information:

The start time of sector scanning by the network device, the number of sectors of the network device, the number of antennas of the network device, the indication information of the antenna reciprocity of the network device, the indication of the antenna mode reciprocity of the network device information, the length of the training frame for the network device to scan the sector, and the training mode indication information of the network device;

Wherein, the number of sectors of the network device is the number of sectors used by the network device for sector scanning;

The number of antennas of the network device is the number of antennas used by the network device for sector scanning;

The indication information of the antenna mutuality of the network device is used to indicate: whether the optimal transmitting antenna of the network device is the optimal receiving antenna of the network device;

The indication information of the mutual dissimilarity of the antenna mode of the network device is used to indicate: whether the antenna weight corresponding to the transmitting antenna mode of the network device is the antenna weight corresponding to the receiving antenna mode of the network device;

The training mode indication information of the network device is used to indicate whether the training mode of the network device is a training mode directed at one end or a training mode directed at both ends.

The sector scan parameters of the network device include the start time for the network device to perform the sector scan and the length of the training frame for the network device to perform the sector scan, which can make the network device and the user equipment based on the start time and the The length of the training frame realizes synchronous sector switching, so that the network equipment and user equipment use the same frequency or beat to perform sector switching, realizes precise sector switching between network equipment and user equipment, and reduces the need for sector switching on high-frequency channels. Reduce the time-consuming area scanning and improve the efficiency of sector scanning.

Optionally, when the training mode indication information of the network device is used to indicate that the training mode of the network device is a training mode directed at both ends, the sector scanning parameters of the network device further include:

The indication information of the sector scanning mode of the network device, and the indication information of the number of repetitions;

The indication information of the sector scan mode of the network device is used to indicate the corresponding relationship between the number of transmissions of the user equipment in each sector and the number of sector scans performed by the network device;

The indication information of the number of repetitions is used to indicate the number of times the user equipment sends in each sector, or the number of times the network equipment performs sector scans.

Optionally, the sector scan parameters of the network device also include at least one of the following information:

Indication information of the feedback type, indication information of whether the beacon frame carries the training sequence of the receiving end, and length indication information of the training sequence;

Wherein, the indication information of the feedback type is used to indicate whether the transmission mode of the feedback information between the network device and the user equipment adopts a tunnel transparent transmission mechanism OCT.

In the fifth aspect, the embodiment of the present application may further provide an apparatus for scanning sectors on the side of the initiator or the network device. In one manner, the apparatus may be an initiator device, or a chip in the initiator device. The initiator may be a network device or a user device. In another manner, the device may be a network device, or a chip in the network device.

The device can implement any function of the initiator in any implementation manner of the first aspect above, or any function of the network device in any implementation manner of the third aspect. This function may be implemented by hardware, or may be implemented by executing corresponding software on the hardware. The hardware or software includes one or more units corresponding to the functions described above.

In a possible implementation manner, when the device is an initiator device or a network device, the initiator device may include: a processor and a transceiver, and the processor, also known as a controller, may be configured to support the initiator device or The network device executes corresponding functions in the above methods. The transceiver includes a low-frequency transceiver and a high-frequency transceiver, and the low-frequency transceiver is used to support communication between the initiator device and the responder device on the low-frequency channel, so as to send the information involved in the above method to the responder device on the low-frequency channel or instructions, and receive the information or instructions sent by the responder equipment on the low frequency channel; or, to support the communication between the network equipment and the user equipment on the low frequency channel, so as to send the information involved in the above method to the user equipment on the low frequency channel information or instructions. The high-frequency transceiver is used to support the sector scanning of the initiator and the responder on the high-frequency channel; or, is used to support the sector scanning of the network equipment and the user equipment on the high-frequency channel. Optionally, the initiator device may further include a memory, the memory is used to be coupled with the processor, and stores necessary program instructions and data of the initiator device or network device.

In a possible implementation manner, the device includes: a processor, a memory, a transceiver, and an antenna. Wherein, the processor is also called a controller, which is mainly used to control the entire device and execute computer program instructions to support the device to perform the actions described in any method embodiment in the first aspect or the third aspect above. The memory is mainly used to store and save necessary program instructions and data of the initiator device or network device. The transceiver is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.

In a possible implementation manner, when the device is a chip in an initiator device or a network device, the chip includes: a processing module and a transceiver module, and the processing module may be, for example, a processor, also known as a controller, such as , can be used to generate various messages and signaling, and after encapsulating various messages according to the protocol, perform encoding, modulation, amplification, etc., and the processor can also be used for demodulation, decoding, and decapsulation to obtain signaling and message; the transceiver module may be, for example, an input/output interface, a pin or a circuit on the chip. The processing module can execute the computer-executed instructions stored in the storage unit, so as to support the initiator device or network device to perform corresponding functions in the above method. Optionally, the storage unit may be a storage unit in the chip, such as a register, cache, etc., and the storage unit may also be a storage unit located outside the chip in the initiator device or network device, such as a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory, RAM), etc.

Wherein, the processor mentioned in any of the above places can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (application-specific integrated circuit, ASIC), or one or more An integrated circuit for controlling program execution of the sector scanning method of the first aspect or the third aspect.

In a sixth aspect, the embodiment of the present application provides a sector scanning apparatus applied to a responder or a user equipment side. In one manner, the apparatus may be a responder device, or a chip in the responder device. In another manner, the apparatus may be user equipment, or a chip in the user equipment.

The apparatus has any function of the responder involved in any implementation manner in the second aspect above, or any function of the user equipment involved in any implementation manner in the fourth aspect. This function may be implemented by hardware, or may be implemented by executing corresponding software on the hardware. The hardware or software includes one or more units corresponding to the functions described above.

In a possible implementation manner, the apparatus may be a responder device or a user device, and the responder device or user device may include: a processor and a transceiver, the processor is also called a controller, and may be configured to support The responder device or the user device executes corresponding functions in the above methods. Transceivers include low frequency transceivers and high frequency transceivers. The low frequency transceiver is used to support the communication between the responder device and the initiator device, to receive the information or instructions involved in the above method transmitted by the initiator device on the low frequency channel, and to send the above method to the initiator on the low frequency channel The information or instructions involved; or, used to support communication between the network device and the user equipment to receive the information or instructions involved in the above method transmitted by the network device on the low frequency channel. The high-frequency transceiver is used to support the sector scanning of the initiator and the responder on the high-frequency channel; or, is used to support the sector scanning of the network equipment and the user equipment on the high-frequency channel. Optionally, the responder device may further include a memory, which is used to be coupled with the processor, and stores necessary program instructions and data of the responder device or the user device.

In a possible implementation manner, the device includes: a processor, a memory, a transceiver, and an antenna. Wherein, the processor is mainly used to control the entire device and execute computer program instructions to support the device to perform the actions described in any method embodiment in the second aspect or the fourth aspect above. The memory is mainly used to store and save necessary program instructions and data of the responder device or user device. The transceiver is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.

In a possible implementation manner, the apparatus may be a chip in the responder equipment or user equipment, and the chip includes: a processing module and a transceiver module, and the processing module may be, for example, a processor, also known as a controller, for example, It can be used to generate various messages and signaling, and after encapsulating various messages according to the protocol, perform encoding, modulation, amplification, etc., and the processor can also be used for demodulation, decoding, and decapsulation to obtain signaling and messages ; The transceiver module may be, for example, an input/output interface, a pin or a circuit on the chip. The processing module may execute the computer-executed instructions stored in the storage unit, so as to support the responder device or the user device to perform corresponding functions in the above methods. Optionally, the storage unit may be a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the responder device or the user device, Such as ROM or other types of static storage devices that can store static information and instructions, RAM, etc.

Wherein, the processor mentioned in any of the above can be a CPU, a microprocessor, an ASIC, or one or more integrated circuits used to control the program execution of the sector scanning method in the second aspect or the fourth aspect .

In a seventh aspect, the embodiment of the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and the instructions can be executed by one or more processors on a processing circuit. When it is run on a computer, the computer is made to execute the sector scanning method in any possible implementation manner in any one of the first aspect, the second aspect, the third aspect or the fourth aspect.

In the eighth aspect, the embodiment of the present application provides a computer program product containing instructions, which when run on a computer, causes the computer to execute any one of the first aspect, the second aspect, the third aspect or the fourth aspect. A sector scan method in any possible implementation.

In a ninth aspect, the present application provides a chip system, the chip system includes a processor, configured to support the initiator device to implement the above first aspect, or support the responder device to implement the functions involved in the above second aspect, or support The network device performs the functions involved in the above third aspect, or supports the user equipment to perform the functions involved in the above fourth aspect, for example, generating or processing the data and/or information involved in the above aspects. In a possible design, the chip system further includes a memory, and the memory is configured to store necessary program instructions and data of the data sending device. The system-on-a-chip may consist of chips, or may include chips and other discrete devices.

In a tenth aspect, the embodiment of the present application provides a chip, including a processor, configured to call from a memory and execute instructions stored in the memory, so that a device installed with the chip executes the methods in the above aspects.

In the eleventh aspect, the embodiment of the present application provides another chip, including: an input interface, an output interface, a processor, and a memory, and the input interface, the output interface, the processor, and the memory are connected through an internal connection path In connection, the processor is configured to execute codes in the memory, and when the codes are executed, the processor is configured to execute the methods in the above aspects.

In a twelfth aspect, the embodiment of the present application provides a network system, including: an initiator device and a responder device; the initiator device and the responder device are connected, the initiator device is any one of the initiator devices described above, and the above-mentioned In the sector scanning method performed by the initiator described in the first aspect, each second terminal device of the responder device is any of the responder devices described above, and executes the sector scan method performed by the responder described in any of the above second aspects area scan method.

In the thirteenth aspect, the embodiment of the present application may also provide a network system, including: a network device and a user device; the network device and the user device are connected, and the network device is any one of the above-mentioned network devices, which implements the above-mentioned third aspect The sector scanning method performed by the network equipment described above, the user equipment is any one of the network equipment described above, and executes the sector scanning method performed by the user equipment described in any one of the fourth aspect above.

In the sector scan method and related devices provided in the embodiments of the present application, the responder sends the first frame including the sector scan parameters of the initiator on the first channel through the initiator, and receives the first frame of the responder on the first channel. The second frame including the sector scan parameters of the responder returned on the channel can enable the initiator to perform sector scan parameters on the second channel according to the sector scan parameters of the responder, so that the responder can perform sector scan parameters according to the responder Sector Scan Parameters of Initiator Sector scan on this second channel. In the sector scan method, the initiator and the responder exchange their respective sector scan parameters on the low-frequency channel in advance, which reduces the overhead of signaling interaction on the high-frequency channel, and enables the initiator and the responder to know the sector in advance Scan parameters, and perform precise sector scanning on high-frequency channels, avoiding blind switching of sectors, thereby effectively reducing the time-consuming sector scanning on high-frequency channels and improving the efficiency of sector scanning.

Description of drawings

FIG. 1 is a schematic diagram of a WLAN application scenario provided by various embodiments of the present application;

FIG. 2 is a schematic structural diagram of a network device provided in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a user equipment provided in an embodiment of the present application;

FIG. 4 is a schematic diagram of a scenario where OCT is used to transmit information between devices provided in an embodiment of the present application;

FIG. 5 is a flowchart of a sector scanning method provided in an embodiment of the present application;

FIG. 6 is a schematic diagram of a frame structure of a beamforming training request frame provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a directional beamforming training control element in a beamforming training request frame provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of a frame structure of a beamforming training response frame provided by an embodiment of the present application;

FIG. 9 is a signaling flow chart 1 of sector scanning performed by station 1 and station 2 in a sector scanning method provided by an embodiment of the present application;

FIG. 10 is a second signaling flow chart of sector scanning performed by station 1 and station 2 in a sector scanning method provided by an embodiment of the present application;

FIG. 11 is a third signaling flow chart of sector scanning performed by station 1 and station 2 in a sector scanning method provided by an embodiment of the present application;

FIG. 12 is a flow chart of another sector scanning method provided by the embodiment of the present application;

FIG. 13 is a schematic structural diagram of a preset sub-element of a multi-bandwidth element in a beacon frame provided by an embodiment of the present application;

FIG. 14 is a signaling flow chart 1 of sector scanning performed by an AP and a station in a sector scanning method provided in an embodiment of the present application;

FIG. 15 is a second signaling flow chart of sector scanning performed by an AP and a station in a sector scanning method provided in an embodiment of the present application;

FIG. 16 is a signaling flow chart of sector scanning between an AP and a station in another sector scanning method provided in an embodiment of the present application;

FIG. 17 is a first structural schematic diagram of a sector scanning device provided by an embodiment of the present application;

FIG. 18 is a structural diagram 1 of a possible product form of the sector scanning device described in the embodiment of the present application;

FIG. 19 is a second structural schematic diagram of a sector scanning device provided by an embodiment of the present application;

FIG. 20 is a second structural diagram of a possible product form of the sector scanning device according to the embodiment of the present application.

detailed description

Various embodiments of the present application provide a sector scanning method, initiator and responder equipment, network equipment, and user equipment, wherein the network equipment is a wireless communication device with wireless transceiver function, which may include but not limited to: evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (basetransceiver station, BTS), Home base station (for example, home evolved NodeB, or home Node B, HNB), base band unit (base band Unit, BBU), access point (access point, AP) in wireless fidelity (wireless fidelity, WIFI) system, wireless The relay node, the wireless backhaul node, a transmission point (transmission point, TP) or a transmission and reception point (transmission and reception point, TRP), etc., may also be a base station supporting the 5G protocol. User equipment is a communication device with wireless transceiver function. User equipment can also be called a station, which can be a wireless sensor, a wireless communication terminal or a mobile terminal, such as a mobile phone supporting WIFI communication function (or called a "cellular" phone) and a computer with wireless communication capabilities. For example, it may be a portable, pocket, handheld, computer built-in, wearable, or vehicle-mounted wireless communication device that supports WiFi communication functions, and they exchange communication data such as voice and data with the wireless access network.

It should be understood that the methods and devices provided in the embodiments of the present application are applicable to various wireless communication systems, for example, a wireless local area network (Wireless Local Area Networks, WLAN) system, and the communication system can perform beamforming training, such as 802.11ad Standard, 802.11ay standard and its follow-up improvement standard WLAN system. Taking a WLAN as an example, FIG. 1 is a schematic diagram of an application scenario of a WLAN provided in an embodiment of the present application. As shown in FIG. 1 , the WLAN includes one or more basic service sets, and one basic service set may include one network device and at least one user equipment.

Referring to FIG. 1 , it can be seen that the signal transmission distances of different frequency channels are different, so the coverage of network devices is different. Wherein, the coverage of the high-frequency channel with BF training is larger than the coverage of the high-frequency channel without BF training, and the coverage of the low-frequency channel may be larger than the coverage of the high-frequency channel with BF training.

The solutions provided by the following embodiments of the present application are applicable to communication between user equipment and network equipment, communication between user equipment and user equipment, and communication between network equipment and network equipment.

The devices (such as network devices, and user equipment) involved in the following embodiments of the present application may be devices with dual-mode communication functions, that is, devices with low frequency (low frequency, LF) channel communication mode, and high frequency (high frequency) , HF) channel communication mode equipment. FIG. 2 is a schematic structural diagram of a network device provided by an embodiment of the present application. As shown in FIG. 2, the network device includes a controller (controller), an HF module and an LF module. The HF module can be used to generate and send high-frequency signals, and the LF module can be used to generate and send low-frequency signals. Wherein, the controller may store common information (common info) of the HF module and the LF module. The HF module may include: an HF media access control (Media Access Control, MAC) layer module and an HF physical layer (Physical layer, PHY) layer module; the LF module may include: an LF MAC layer module and an LFPHY layer module. A controller can control and coordinate the HF module and the LF module. The HF module and the LF module can be located in the same chip in the network device, or can be located in an independent chip respectively.

FIG. 3 is a schematic structural diagram of a user equipment provided by an embodiment of the present application. As shown in FIG. 3 , the user equipment includes a controller (controller), an HF module and an LF module. The HF module can be used to generate and send high-frequency signals, and the LF module can be used to generate and send low-frequency signals. Wherein, the controller may store public information of the HF module and the LF module. The HF module may include: HF MAC layer module and HF PHY layer module; the LF module may include: LF MAC layer module and LF PHY layer module. A controller can control and coordinate the HF module and the LF module. The HF module and the LF module can be located in the same chip in the user equipment, or can be located in an independent chip respectively.

Whether it is a network device or a user device, both communication parties can be dual-mode devices. If the devices of the communication parties both support the tunnel transparent transmission mechanism (On-Channel Tunneling, OCT), the devices of the communication parties can use OCT technology. The information on the high frequency channel is transmitted on the low frequency channel. FIG. 4 is a schematic diagram of a scenario in which OCT is used to transmit information between devices provided in an embodiment of the present application. As shown in Figure 4, device 1 can use OCT to transfer the transmission information of the high-frequency channel to the management entity of the LF MAC layer module of device 1, also known as the low-frequency Media Access Control Management Entity (MLME). . After the MAC layer processing is performed by the management entity of the LF MAC layer module of the device 1, the physical layer processing is performed by the LF PHY layer module of the device 1, so as to be encapsulated into a low-frequency transmission frame, and the low-frequency transmitter of the device 1 transmits it in the form of a packet way to the LF receiver of device 2. After the low-frequency receiver of the device 2 receives the low-frequency transmission frame, it is processed by the LF PHY layer module of the device 2 and the LF MAC layer module of the device 2 in turn, and then the obtained information is transmitted to the management of the HF MAC layer module of the device 2 Entities, also known as high-frequency MLME, realize the transmission of high-frequency information.

In this embodiment of the application, the communication parties may also be referred to as an initiator and a responder. That is to say, the initiator may be a user equipment or a network device, and the responder may also be a user equipment or a network device. In the embodiment of this application, the initiator and the responder exchange their sector scanning parameters on the low-frequency channel in advance, which reduces the overhead of signaling interaction on the high-frequency channel, and enables the initiator and the responder to know each other's sectors in advance The scanning parameters can enable each to perform sector scanning on the high-frequency channel according to the sector scanning parameters of the opposite end, that is, the initiator can perform sector scanning on the high-frequency channel according to the sector scanning parameters of the responding party, and the responding party can perform sector scanning on the high-frequency channel according to The sector scan parameters of the initiator perform sector scan on the high-frequency channel to realize precise sector scan on the high-frequency channel by the initiator and the responder, and avoid blind sector switching, thus effectively reducing the high-frequency The time-consuming of sector training on the channel improves the efficiency of high-frequency sector training.

The sector scanning method provided by the embodiment of the present application is described below with reference to multiple examples.

FIG. 5 is a flowchart of a sector scanning method provided by an embodiment of the present application. As shown in Figure 5, the sector scanning method may include the following:

S501. The initiator sends a first frame to the responder on a first channel; the first frame includes: sector scanning parameters of the initiator.

The sector scan parameter of the initiator is used to enable the responder to perform sector scan on the second channel according to the sector scan parameter of the initiator.

In this implementation manner, the initiating party may be a network device or a user equipment, and the responding party may be a network device or a user equipment. For example, if the initiator is a network device, the responder is a network device; if the initiator is a user equipment, the responder may be a network device or a user equipment. Wherein, the initiator may also be called a requester or a requester, and the responder may also be called a responder.

Both the initiator and the responder may be dual-mode communication devices, that is, the initiator and the responder also support the communication mode of the second channel when they support the communication mode of the first channel.

The first channel may be a low frequency channel, for example, the low frequency channel may be a 2.4GHz channel or a 5.8GHz channel. Certainly, the low-frequency channel may also be other low-frequency channels, the above is only an example, and the present application does not limit it. The second channel may be a high-frequency channel, and the high-frequency channel may be, for example, a millimeter wave channel, such as a 60 GHz channel. Of course, the high-frequency channel may also be a channel of other frequencies, the above is only an example, and the present application does not limit it. The bandwidth of the second channel may be higher than or equal to the preset channel bandwidth, and the preset channel bandwidth may be a single channel bandwidth under a high-frequency channel. For example, the bandwidth of the second channel may be a single-channel bandwidth under a high-frequency channel, or may be an integer multiple such as 2 times the single-channel bandwidth under a high-frequency channel.

Optionally, the first frame sent on the first channel is sent omnidirectionally. Since the low-frequency channel, that is, the attenuation of the signal transmitted on the first channel is relatively small, then the first frame including the sector scan parameters of the initiator is sent in an omnidirectional manner on the first channel, which can ensure the initiator's The sector scanning parameters are accurately reached to the responding party, which ensures the precise sector scanning of the responding party on the second channel.

Since the low frequency channel generally does not need to perform sector scan, the initiator's sector scan parameters included in the first frame transmitted on the low frequency channel are actually parameters used for sector scan of the high frequency channel.

In this embodiment of the present application, the initiator may use the OCT technology to send the first frame including the initiator's sector scan parameters to the responder on the first channel. The initiating party may also adopt other techniques, and send the initiating party's sector scanning parameters to the responding party on the first channel, as long as the responding party can obtain the initiating party's sector scanning parameters. The initiator may pass the initiator's sector scan parameters to the management entity of the initiator's LF MAC layer module, also known as the low-frequency MLME. After the LF MAC layer module of the initiator performs MAC layer processing, the LF PHY layer module of the initiator performs physical layer processing to encapsulate into a low-frequency transmission frame, that is, the first frame, and transmits the first frame through the low-frequency transmitter of the initiator as The packets are transmitted to the responder's LF receiver.

S502. The responder receives a first frame from the initiator on the first channel, where the first frame includes: sector scan parameters of the initiator.

For the responder, the responder may use the OCT technology to receive the first frame including the sector scan parameter of the initiator sent from the initiator on the first channel. The responder may also use other techniques to receive the initiator's sector scan parameters from the initiator on the first channel, as long as the responder can obtain the initiator's sector scan parameters.

After the responder receives the first frame, it can be processed by the LF PHY layer module of the responder and the LFMAC layer module of the responder in turn, and then the obtained information is transmitted to the management entity of the HF MAC layer module of the responder, It is also called high-frequency MLME, so as to obtain the sector scan parameters of the initiator.

S503. The responder sends a second frame to the initiator on the first channel, where the second frame includes: sector scanning parameters of the responder.

The first frame may be, for example, a management frame on the first channel, and the second frame may also be, for example, a management frame on the first channel. For example, the first frame may be a request frame, such as a beam forming training request (beam forming_training_request) frame, and the second frame may be a response frame, such as a beam forming training response (beam forming_training_response) frame.

In this embodiment of the present application, the responder may use the OCT technology to send the second frame including the sector scan parameter of the responder to the initiator on the first channel. The responder may also adopt other technologies, and send the responder's sector scan parameters to the initiator on the first channel, as long as the initiator can obtain the responder's sector scan parameters.

The responder may pass the responder's sector scan parameters to the management entity of the responder's LF MAC layer module, also known as the low-frequency MLME. After the LF MAC layer module of the initiator performs MAC layer processing, the LF PHY layer module of the responder performs physical layer processing to encapsulate into a low-frequency transmission frame, that is, the second frame, and transmits it as a packet through the low-frequency transmitter of the responder transmitted to the initiator's low-frequency receiver in the same way.

Optionally, the second frame sent on the first channel is sent omnidirectionally. Since the low-frequency channel, that is, the attenuation of the signal transmitted on the first channel is relatively small, then the second frame including the sector scan parameters of the responding party is sent in an omnidirectional manner on the first channel, which can ensure the response of the responding party. The sector scanning parameters are accurately delivered to the initiator, which ensures the precise sector scanning of the initiator on the second channel.

S504. The initiator receives the second frame from the responder on the first channel, where the second frame includes: sector scan parameters of the responder.

For the initiating party, the initiating party may use the OCT technology to receive the second frame including the sector scan parameter of the responding party sent from the responding party on the first channel. The initiator may also adopt other techniques to receive the responder's sector scan parameters from the responder on the first channel, as long as the responder can obtain the responder's sector scan parameters.

After the initiator receives the second frame, it can be processed by the LF PHY layer module of the initiator and the LFMAC layer module of the responder in turn, and then the obtained information is transmitted to the management entity of the HF MAC layer module of the initiator, It is also called high-frequency MLME, so as to obtain the sector scanning parameters of the responding party.

By executing the above S501 and S502, the responder can know the sector scan parameters of the initiator, and by executing the above S503 and S504, the initiator can know the sector scan parameters of the responder. That is, the solution of the embodiment of the present application enables the initiator and the responder to interact through the first frame and the second frame, so that the initiator and the responder know the sector scan parameters of the other party.

S505. The initiator performs a sector scan on a second channel according to the sector scan parameter of the responder, and the frequency of the second channel is higher than the frequency of the first channel.

The initiator acquires the sector scan parameters of the responder based on the second frame returned by the responder, and performs sector scan on the second channel according to the sector scan parameters of the responder. Since the sector scan process is also affected by its own sector scan parameters, the initiator can also combine the initiator during the process of sector scan on the second channel according to the sector scan parameters of the responder Fang’s sector scan parameters.

The initiating party may scan the receiving sector and the transmitting sector of the initiating party on the second channel according to the sector scanning parameters of the responding party. For example, the initiator may receive multiple training frames sent by the responder on the second channel according to the sector scan parameters of the responder, so as to perform the receiving sector scan of the initiator. Through the initiator's receive sector scan, the initiator can determine the initiator's optimal receive sector and the responder's optimal transmit sector. Wherein, among the plurality of training frames sent by the responding party on the second channel, each training frame may have a reflection sector, that is, the responding party has a plurality of transmission sectors on the second channel In each transmit sector within , at least one training frame is transmitted. The at least one training frame sent in each transmit sector has the same transmit sector. The training frames transmitted in different transmission sectors may have different transmission sectors.

The initiator can switch the receiving sector according to the sector scanning parameters of the responding party, and use multiple receiving sectors to receive the training frames sent by the responding party in sequence on the second channel, and according to the multiple receiving sectors The receiving situation of the training frame in the area determines the optimal receiving sector of the initiator, and the transmitting sector corresponding to the training frame received in the optimal receiving sector of the initiator is the optimal transmitting sector of the responding party . The optimal receiving sector of the initiator may be the receiving sector corresponding to the strongest received signal quality and the highest signal-to-noise ratio of the training frames received by the initiator in the plurality of receiving sectors.

The initiator can also send one or more training frames on the second channel according to the sector scan parameters of the responder to scan the transmit sector of the initiator so that the responder scans the sectors according to the sector scan of the initiator The parameter scans the responder's receive sector on this second channel.

The training frame shown above may be a sector scanning (Sector Sweeping, SSW) frame.

S506. The responder performs sector scan on the second channel according to the sector scan parameter of the initiator.

The responder acquires the initiator's sector scan parameters based on the first frame sent by the initiator, and performs sector scan on the second channel according to the initiator's sector scan parameters. Since the sector scan process is also affected by its own sector scan parameters, the responder can also combine its own The sector scan parameters for this responder.

The responder may scan the receive sector and scan the transmit sector of the responder on the second channel according to the sector scan parameters of the initiator. Exemplarily, the responder may send a plurality of training frames on the second channel according to the sector scan parameters of the responder to scan the transmitting sector of the responder, so that the responder scans the sector according to the responder Parameters The initiator's receive sector scan is performed on this second channel.

The responder may also receive one or more training frames sent by the initiator on the second channel according to the sector scan parameters of the initiator, so as to perform sector scan of the responder. Through the responder's receive sector scan, the responder can determine the responder's optimal receive sector and the initiator's optimal transmit sector.

In an example, for the one training frame, if the initiator determines that the responder supports antenna mutuality and antenna pattern mutuality according to the sector scan parameters of the responder, it can be determined that the initiator performs the receiving sector The optimal transmit sector of the responder determined by the zone scan is the optimal receive sector of the responder; if the initiator determines that the initiator also supports antenna reciprocity and antenna mode based on the initiator’s sector scan parameters , it can be determined that the optimal receiving sector of the initiator determined by scanning the receiving sector of the initiator is the optimal transmitting sector of the initiator. Therefore, the initiating party may use the optimal transmitting sector of the initiating party to send the training frame to the responding party on the second channel within the time period corresponding to the optimal transmitting sector of the responding party. The training frame may also carry the responder's optimal transmit sector.

The responder can switch the receiving sector according to the sector scanning parameters of the initiator, and sequentially use multiple receiving sectors on the second channel to receive the training frame sent by the initiator. Once the training frame is received, The optimal transmit sector for the responder, and the optimal receive sector for the responder can then be determined.

In another example, if there are multiple training frames, among the multiple training frames sent by the initiator on the second channel, each training frame may have a transmission sector, that is, the initiator On the second channel, at least one training frame is transmitted in each of the plurality of transmit sectors. The at least one training frame sent in each transmit sector has the same transmit sector.

The responder can switch the receiving sector according to the sector scan parameters of the initiator, and use multiple receiving sectors on the second channel to receive the training frames sent by the initiator in sequence, and according to the multiple receiving sectors The receiving situation of the training frame in the area determines the optimal receiving sector of the responder, and the transmitting sector corresponding to the training frame received in the optimal receiving sector of the responding party is the optimal transmitting sector of the initiator . The optimal receiving sector of the initiator may be the receiving sector corresponding to the strongest received signal quality and the highest signal-to-noise ratio of the training frames received by the initiator in the plurality of receiving sectors.

By executing the above S505, the initiator can determine the optimal receiving sector of the initiator and the optimal transmitting sector of the responding party, and by performing the above S506, the responding party can determine the optimal receiving sector of the responding party and the optimal transmitting sector of the responding party. Initiator's optimal transmit sector.

In order to enable the initiator and the responder to know their respective optimal transmission sectors, in one implementation, during the process of scanning the receiving sector of the responder through the above S506, the initiator can use the responder’s The information of the optimal transmitting sector is carried in the training frame on the second channel and sent to the responding party, so that the responding party knows the optimal transmitting sector of the responding party.

After performing the receiving sector scan of the responder by performing the above S506, the responder may send a feedback frame to the initiator on the second channel, such as a sector scanning feedback (Sector Sweeping Feedback, SSW Feedback) frame carrying the initiator The information of the optimal transmitting sector of the initiator, so that the initiating party receives the feedback frame on the second channel, so as to obtain the information of the optimal transmitting sector of the initiating party. After receiving the feedback frame, the initiator may also send an acknowledgment (Acknowledgment, ACK) frame to the responder on the second channel to inform the responder that the initiator has received the feedback frame.

After performing the receiving sector scanning of the responding party by performing the above S606, the responding party may also use OCT to send a feedback frame including information about the optimal transmitting sector of the initiator to the initiator on the first channel, The initiator uses the OCT to receive the feedback frame on the first channel, so as to obtain the information of the optimal transmitting sector of the initiator. After receiving the feedback frame, the initiator may also use OCT to send an ACK frame to the responder on the first channel to inform the responder that the initiator has received the feedback frame.

In order to enable the initiator and the responder to know their respective optimal transmission sectors, in another implementation manner, by performing the above S505, the initiator can determine the optimal receiving sector of the initiator, if the initiator according to If the initiator's sector scanning parameters determine that the initiator supports antenna mutuality, then it can be determined that the initiator's optimal receiving sector is the initiator's optimal transmitting sector. By executing the above S506, the responder can determine the optimal receiving sector of the responder. If the responder determines that the responder supports antenna reciprocity according to the sector scanning parameters of the responder, the optimal receiving sector of the responder can be determined. The receiving sector is the optimal transmitting sector for the responder.

If the initiator knows the optimal transmit sector and the optimal receive sector of the initiator, it can use the optimal transmit sector of the initiator to send information to the responder on the high frequency channel, and use the optimal transmit sector on the high frequency channel to send information to the responder, and use The optimal receiving sector of the initiator receives the information sent by the responder. If the responder knows the optimal transmitting sector and the optimal receiving sector of the responding party, it can use the optimal transmitting sector of the responding party to send information to the initiator on the high frequency channel, and use the optimal transmitting sector on the high frequency channel The responder's optimal receiving sector receives the information sent by the responder. In this way, the devices at the two ends of the transceiver can use their respective optimal transmit sectors and optimal receive sectors to communicate with the opposite device on the high-frequency channel, that is, the directional transceiver of the devices at the two ends of the transceiver is realized, and the high-speed The information transmission distance on the frequency channel.

In the sector scan method provided by the embodiment of the present application, the responder sends the first frame including the sector scan parameters of the initiator on the first channel by the initiator, and receives the response returned by the responder on the first channel The second frame including the sector scan parameters of the responder may enable the initiator to perform sector scan parameters on the second channel according to the sector scan parameters of the responder, so that the responder may perform sector scan parameters according to the initiator's Sector Scan Parameters Sector scan on the second channel. In the sector scan method, the initiator and the responder exchange their respective sector scan parameters on the low-frequency channel in advance, which reduces the overhead of signaling interaction on the high-frequency channel, and enables the initiator and the responder to know the sector in advance Scan parameters, and perform precise sector scanning on high-frequency channels, avoiding blind switching of sectors, thereby effectively reducing the time-consuming sector scanning on high-frequency channels and improving the efficiency of sector scanning.

In a possible implementation manner, the sector scan parameters of the initiator as shown above may include at least one of the following information: the starting time (Starting time) for the initiator to perform the sector scan, the initiator's The number of sectors, the number of antennas of the initiator, the indication information of the antenna reciprocity of the initiator, and the antenna pattern reciprocity of the initiator The instruction information of the initiator, the length of the training frame (training frame length) for the sector scan of the initiator, and the instruction information of the training mode (Training mode) of the initiator.

Wherein, the number of sectors of the initiator is the number of sectors used by the initiator for sector scanning.

The initiator's sector scan parameters include the start time for the initiator to perform sector scan and the length of the training frame for the initiator to perform sector scan, and the initiator and responder can also make the initiator and responder based on the start time and The length of the training frame realizes synchronous sector switching, so that the initiator and responder use the same frequency or beat for sector switching, which realizes precise sector switching between the initiator and responder, and reduces the need for high-frequency channel switching. The time consumption of sector scanning improves the efficiency of sector scanning.

The number of antennas of the initiator is the number of antennas used by the initiator for sector scanning.

The indication information of the antenna reciprocity of the initiating party is used to indicate whether the optimal transmitting antenna of the initiating party is the optimal receiving antenna of the initiating party. For example, if the initiator's antenna reciprocity indication information is used to indicate that: the initiator's optimal transmit antenna is the initiator's optimal receive antenna, then the initiator supports antenna reciprocity. If the indication information of the initiator's antenna reciprocity is used to indicate that: the initiator's optimal transmitting antenna is not the initiator's optimal receiving antenna, the initiator does not support antenna reciprocity.

The indication information of the antenna mode mutual dissimilarity of the initiator is used to indicate: whether the antenna weight corresponding to the transmitting antenna mode of the initiator is the antenna weight corresponding to the receiving antenna mode of the initiator. For example, if the indication information of the antenna mode mutual dissimilarity of the initiator is used to indicate that: the antenna weight corresponding to the transmitting antenna mode of the initiator is the antenna weight corresponding to the receiving antenna mode of the initiator, then the initiator supports the antenna mode of mutuality. If the indication information of the antenna mode mutual dissimilarity of the initiator is used to indicate that the antenna weight corresponding to the transmit antenna mode of the initiator is not the antenna weight corresponding to the receive antenna mode of the initiator, the initiator does not support mutual antenna mode. opposite sex.

The training frame for sector scanning may be, for example, an SSW frame, and the length of the training frame for sector scanning by the initiator may, for example, be used to indicate the length of each SSW frame.

The indication information of the training mode of the initiator is used to indicate whether the training mode of the initiator is a training mode directed at one end or a training mode directed at both ends. For example, if the instruction information of the training mode of the initiator is 0, it can be determined that when the initiator performs sector scanning, one end of the initiator and the responder adopts a directional transmission mode, while the other end adopts an omnidirectional reception mode , or, one end uses omnidirectional sending, while the other end uses directional receiving. If the indication information of the training mode of the initiator is 1, it can be determined that when the initiator performs sector scanning, one end of the initiator and the responder adopts a directional transmission method, while the other end adopts a directional reception method.

Optionally, when the initiator's training mode indication information is used to indicate that the initiator's training mode is a training mode with both ends oriented in the above-mentioned initiator's sector scan parameters, the initiator's sector scan parameters May also include:

Indication information of the initiator's sector scanning mode (sweeping mode); wherein, the indication information of the initiator's sector scanning mode is used to indicate that the number of transmissions of the responder in each sector is carried out with the initiator Corresponding relationship of sector scan times.

For example, the indication information of the scan mode of the initiator is 0, which can be used to indicate that the responder sends N training frames in each sector, and the initiator performs a sector scan; the scan mode of the initiator The indication information is 1, which can be used to instruct the responder to initiate a training frame once in each sector, and the initiator to repeat N times of sector scanning. N is the number of sectors of the initiator.

For example, if the number of receiving sectors of the initiator is 5 and the number of transmitting sectors of the responder is 4, the indication information of the scanning mode of the initiator can be used to indicate that the initiator and the responder are based on 5* 4 mode for scanning, or 4*5 mode for scanning.

Among them, the 5*4 mode can be: after the responder can send 5 SSW frames in the transmitting sector 1, the initiator can perform a sector scan in the 5 receiving sectors; the responder can send SSW frames in the transmitting sector 2 After 5 SSW frames, the initiator performs a sector scan in 5 receiving sectors; the responder can send 5 SSW frames in transmitting sector 3, and the initiator performs a sector scan in 5 receiving sectors Scanning: after the responder sends 5 SSW frames in the transmitting sector 4, the initiator performs a sector scan in the 5 receiving sectors. During the whole sector scanning process, the responder sends 5 SSW frames in each transmit sector, since the responder has 4 transmit sectors, the number of SSW frames sent by the responder is 20.

Among them, the 4*5 mode can be: the responder sends 1 SSW frame in transmitting sector 1, sends 1 SSW frame in transmitting sector 2, sends 1 SSW frame in transmitting sector 3, and sends 1 SSW frame in transmitting sector 3. One SSW frame is performed in zone 4, and the initiator performs the first sector scan in five receiving sectors. Repeat until the initiator performs 5 sector scans within 5 receiving sectors. Since during each sector scan, the responder sends 1 SSW frame in each transmit sector, then within 4 transmit sectors, the response conveniently sends 4 SSW frames, then 5 sector scans, then The number of SSW frames sent by the responder is 20.

Optionally, the sector scanning parameters of the initiator may also include at least one of the following information:

The frame type of the first frame, the indication information of whether the initiator requests to perform a transmit sector scan (Is InitiatorTransmit Sector Sweep, IsTXSS), and the indication information of whether the initiator requests to perform a receive sector scan (IsResponder Transmit Sector Sweep, IsRXSS) Information, indication information of the feedback type (Feedback Type), indication information of whether the first frame carries the training sequence (Training–receive, TRN-R) of the receiving end, and indication information of the length of the training sequence (Training–length, TRN-LEN) information.

Optionally, the frame type of the first frame may indicate, for example, that the first frame is a request frame.

For example, if the indication information of the IsTXSS is 1, it may be used to indicate that the initiator requests to scan the transmission sector. If the indication information of the IsTXSS is 0, it may be used to indicate that the initiator does not request to scan the transmission sector. If the indication information of the IsRXSS is 1, it may be used to indicate that the originator requests to perform receiving sector scanning. If the indication information of the IsRXSS is 0, it may be used to indicate that the initiator does not request receiving sector scanning.

The indication information of the feedback type may be used to indicate whether the transmission mode of the feedback information between the initiator and the responder adopts OCT. The feedback information fed back from the responder to the initiator can be transmitted through, for example, an SSW feedback frame, and the indication information of the feedback type can be used to indicate whether the transmission mode of the SSW feedback frame adopts OCT, that is, it is used to indicate whether the SSW feedback frame is in the first For transmission on the second channel, OCT is still used for transmission on the first channel. For example, the feedback information from the initiator to the responder can be transmitted through an ACK frame, and the indication information of the feedback type can also be used to indicate whether the transmission mode of the ACK frame adopts OCT, that is, to indicate that the ACK frame is on the second channel For transmission, OCT is still used for transmission on the first channel.

The initiator's sector scan parameter can be carried in a preset position in the first frame. For example, the first frame is a request frame, such as a request frame for beamforming training. FIG. 6 is a schematic diagram of a frame structure of a beamforming training request frame provided by an embodiment of the present application. As shown in FIG. 6 , the beamforming training request frame may include: 1 byte category (Category), 1 The function (Action) of the byte, the dialog token (Dialog Token) of 1 byte, and the directional beamforming training control element (Directional BF Training Control element) of the preset byte. The preset byte may be greater than or equal to 1 byte, for example. Wherein, the dialog token may be a session value corresponding to the request frame of the beamforming training, which may be used to match the request frame of the beamforming training, so as to distinguish the request frame of the beamforming training from other request frames, to avoid confusion.

The scanning parameters of the initiator can be carried in the directional beamforming training control element as shown in FIG. 6 .

FIG. 7 is a schematic structural diagram of a directional beamforming training control element in a beamforming training request frame provided by an embodiment of the present application. As shown in Figure 7, the directional beamforming training control element may include: element identification (Element ID) field, length (Length) field, dialog token (Dialog Token) field, frame type (Frametype) field, start time (Starting Time) field, Number of sectors (Number of sectors), Number of antennas (Number of antennas) field, IsTXSS indication field, IsRXSS indication field, Antenna reciprocity (Antennareciprocity) field, Antenna pattern reciprocity (Antenna pattern Reciprocity ) field, training frame length (Training frame length) field, feedback type (Feedback type) field, training mode (TRN mode) field, beam tracking request (Beam Tracking Request) field, training sequence length (TRN-LEN) field, Sweeping mode field and Repeat Times field.

Among them, the frame type field, the IsTXSS indication field, the IsRXSS indication field, the feedback type (Feedback type) field, the beam tracking request field, the length field of the training sequence, the scanning mode field and the number of repetitions field may be optional fields, that is, That is, the optional field may or may not be included in the beamforming training control element in the first frame.

The frame type field is used to carry the frame type of the first frame, that is, to indicate that the first frame is a request frame.

The start time field may carry the start time for the initiator to perform sector scanning.

The number of sectors field can carry the number of sectors of the initiator. The number of antennas field is portable, the number of antennas of the initiator.

The IsTXSS indication field may carry indication information indicating whether the initiator requests to scan the transmission sector.

The IsRXSS indication field may carry indication information indicating whether the initiator requests to perform receiving sector scanning.

The antenna mutuality field may carry the indication information of the initiator's antenna mutuality.

The antenna mode dissimilarity field may carry indication information of the initiator's antenna mode dissimilarity.

The training frame length field may carry the length of the training frame for which the initiator performs sector scanning.

The feedback type field may carry indication information of the feedback type.

The training mode field may carry the training mode indication information of the initiator.

When carried in the training mode field, the initiator's training mode indication information is used to indicate that the initiator's training mode is a one-end directional training mode. If the value of the training mode field is 0, the directional beamforming training The control element may include: a Beam Tracking Request field. Wherein, the beam tracking request field may carry indication information of whether the first frame carries a training sequence of the receiving end.

When the indication information carried in the beam tracking request field indicates that the first frame carries the training sequence of the receiving end, the directional beamforming training control element may further include: a length field of the training sequence. Wherein, the length field of the training sequence may carry information indicating the length of the training sequence.

When carried in the training mode field, the initiator's training mode indication information is used to indicate that the initiator's training mode is a two-end directional training mode. If the value of the training mode field is 1, the directional beamforming The training control element may also include: a scan mode field. Wherein, the scan mode field may carry indication information of the initiator's sector scan mode.

When the scan mode field carries the scan mode indication information of the initiator, it is used to instruct the responder to initiate a training frame in each sector, and the initiator repeats N sector scans, where N is The number of sectors of the initiator, the directional beamforming training control element may further include: a repeat times (Repeat Times) field.

The field of the number of repetitions may be used to indicate the number of repetitions for the initiator to perform sector scanning, ie N. It can be understood that the responder can obtain the number of repetitions of the sector scanning performed by the initiator according to the number of sectors of the initiator, and therefore, the field of the number of repetitions may not be included.

In a possible implementation manner, the sector scanning parameters of the responder as shown above may include at least one of the following information:

The starting time of sector scanning by the responding party, the number of sectors of the responding party, the number of antennas of the responding party, the indication information of the antenna reciprocity of the responding party, and the indication of the antenna mode reciprocity of the responding node information, the length of the training frame for sector scanning by the responder, and the training mode indication information of the responder.

The sector scan parameters of the responder include the start time of the sector scan of the responder and the length of the training frame of the sector scan of the responder, which can make the initiator and the responder based on the start time and the The length of the training frame realizes synchronous sector switching, so that the initiator and responder use the same frequency or beat for sector switching, which realizes precise sector switching between the initiator and responder, and reduces the need for sector switching on high-frequency channels. Reduce the time-consuming area scanning and improve the efficiency of sector scanning.

Wherein, the number of sectors of the responder is the number of sectors used by the responder for sector scanning.

The number of antennas of the responder is the number of antennas used by the responder for sector scanning.

The indication information of the antenna reciprocity of the responding party is used to indicate that: the optimal transmitting antenna of the responding party is the optimal receiving antenna of the responding party. For example, if the indication information of the antenna reciprocity of the responder is used to indicate that the optimal transmit antenna of the responder is the optimal receive antenna of the responder, the responder supports antenna reciprocity. If the indication information of the antenna reciprocity of the responding party is used to indicate that: the optimal transmitting antenna of the responding party is not the optimal receiving antenna of the responding party, the responding party does not support antenna reciprocity.

The indication information of the antenna pattern mutuality of the responding party is used to indicate that: the antenna weight corresponding to the transmitting antenna mode of the responding party is the antenna weight corresponding to the receiving antenna mode of the responding party. For example, if the indication information of the antenna pattern mutual dissimilarity of the responding party is used to indicate that: the antenna weight corresponding to the transmitting antenna mode of the responding party is the antenna weight corresponding to the receiving antenna mode of the responding party, then the responding party supports the antenna mode of mutuality. If the indication information of the antenna mode mutual dissimilarity of the responding party is used to indicate that the antenna weight corresponding to the transmitting antenna mode of the responding party is not the antenna weight corresponding to the receiving antenna mode of the responding party, the responding party does not support mutual antenna mode. opposite sex.

The training frame for sector scanning may be, for example, an SSW frame, and the length of the training frame for sector scanning by the responder may, for example, be used to indicate the length of each SSW frame.

The training mode indication information of the responder is used to indicate whether the training mode of the responder is a one-end oriented training mode or both ends oriented training mode. For example, if the indication information of the training mode of the responder is 0, it can be determined that when the responder performs sector scanning, one end of the initiator and the responder adopts the method of directional transmission, while the other end adopts the method of omnidirectional reception. Or, one end adopts the omnidirectional sending method, while the other end adopts the directional receiving method. If the indication information of the training mode of the responder is 1, it can be determined that when the responder performs sector scanning, one end of the initiator and the responder adopts a directional transmission mode, while the other end adopts a directional reception mode.

Optionally, when the responder's training mode indication information is used to indicate that the responder's training mode is a training mode directed at both ends, the responder's sector scan parameters may also include:

The indication information of the sector scan mode of the responder; wherein, the indication information of the sector scan mode of the responder is used to indicate the number of times the initiator sends in each sector and the number of times the responder performs sector scans corresponding relationship.

For example, the indication information of the responder's sector scan mode is 0, which can be used to indicate that the initiator sends N training frames in each sector, and the responder performs a sector scan; the responder's sector The indication information of the scanning mode is 1, which can be used to instruct the initiator to initiate a training frame in each sector, and the responder to repeat N times of sector scanning. N is the number of sectors of the responder.

Optionally, the responder's sector scanning parameters may also include at least one of the following information:

The frame type of the second frame, the indication information indicating whether the responder requests to perform a transmit sector scan, the indication information indicating whether the responder requests to perform a receive sector scan, the indication information of the feedback type, and whether the second frame carries the receiver’s The indication information of the training sequence and the indication information of the length of the training sequence.

Optionally, the frame type of the second frame may indicate, for example, that the second frame is a response frame.

For example, if the indication information indicating whether the responder requests to perform the transmit sector scan is 1, it may be used to indicate that the responder requests to perform the transmit sector scan. If the indication information indicating whether the responder requests to scan the transmission sector is 0, it may be used to indicate that the responder does not request to scan the transmission sector. If the indication information indicating whether the responder requests receiving sector scanning is 1, it may be used to indicate that the responding party requests receiving sector scanning. If the indication information indicating whether the responder requests receiving sector scanning is 0, it may be used to indicate that the responding party does not request receiving sector scanning.

The training frame for sector scanning may be, for example, an SSW frame, and the length of the training frame for sector scanning by the responder may, for example, be used to indicate the length of each SSW frame.

The indication information of the feedback type may be used to indicate whether the transmission mode of the feedback information between the initiator and the responder adopts OCT. The feedback information fed back from the responder to the initiator can be transmitted through, for example, an SSW feedback frame, and the indication information of the feedback type can be used to indicate whether the transmission mode of the SSW feedback frame adopts OCT, that is, it is used to indicate whether the SSW feedback frame is in the first For transmission on the second channel, OCT is still used for transmission on the first channel. For example, the feedback information from the initiator to the responder can be transmitted through an ACK frame, and the indication information of the feedback type can also be used to indicate whether the transmission mode of the ACK frame adopts OCT, that is, to indicate that the ACK frame is on the second channel For transmission, OCT is still used for transmission on the first channel.

The sector scan parameter of the responder can be carried in a preset position in the second frame. For example, the second frame is a response frame, such as a response frame for beamforming training. FIG. 8 is a schematic diagram of a frame structure of a beamforming training response frame provided by an embodiment of the present application. As shown in FIG. 8 , the beamforming training response frame may include: 1 byte category (Category), 1 byte Byte function (Action), 1-byte dialogue token (Dialog Token), 2-byte status code (Status Code), and preset byte directional beamforming training control element (Directional BF Training Control element). The preset byte may be greater than or equal to 1 byte, for example. Wherein, the status number can be used to feedback whether the initiator's request is successful. The specific structure of the directional beamforming training control element may be similar to the above-mentioned FIG. 7 , refer to the above for details, and details will not be repeated here.

The implementation manner provided by the embodiment of the present application, that is, the scheme in which the initiator and the responder interact with each other's sector scan parameters, and then perform sector scan is described below with three specific examples. The specific signaling information included in the sector scanning parameters involved in the following examples has been described in detail in the previous embodiments, and will not be repeated here.

FIG. 9 is a first signaling flow chart of sector scanning performed by station 1 and station 2 in a sector scanning method provided by an embodiment of the present application. In the example of FIG. 9, both the initiator and the responder are user equipments, the initiator may be station 2, and the responder may be station 1, then station 2 may use OCT to send a request frame to station 1 on the first channel, Such as the request frame for beamforming training. Station 1, as the responder, receives the request frame sent by station 2 on the first channel by using the OCT. The request frame includes: sector scanning parameters of station 2.

After receiving the request frame and obtaining the sector scanning parameters of the station 2, the station 1 may use the OCT to return a response frame to the station 2 on the first channel, such as a response frame for beamforming training. Station 2 may use the OCT to receive the response frame sent by station 1 on the first channel. The response frame includes: sector scanning parameters of station 1.

In the first stage shown in FIG. 9 , station 1 may send multiple SSW frames to station 2 on the second channel with multiple transmit sectors according to the sector scan parameters of station 2, so that station 2 may send multiple SSW frames to station 2 according to the sector scanning parameters of station 1. sector scan parameters, receive the plurality of SSW frames with multiple receiving sectors on the second channel, and then determine the optimal receiving sector of the station 2 according to the receiving conditions of the plurality of SSW frames, and the station 1 The optimal transmit sector for .

In the second stage shown in FIG. 9 , station 2 may send multiple SSW frames to station 1 on the second channel with multiple transmission sectors according to the sector scanning parameters of station 1, so that station 1 transmits multiple SSW frames to station 1 according to the sector scanning parameters of station 1 sector scan parameters, receive the plurality of SSW frames with multiple receiving sectors on the second channel, and then determine the optimal receiving sector of the station 1 according to the receiving conditions of the plurality of SSW frames, and the station 2 The optimal transmit sector for . Wherein, in the second stage, each SSW frame sent by the station 2 may carry the information of the optimal transmission sector of the station 1 determined by the station 2 in the first stage.

After the station 1 determines the optimal transmission sector of the station 2, it can also send the SSW feedback carrying the optimal transmission sector of the station 2 to the station 2 on the second channel according to the sector scanning parameters of the station 2 frame.

When station 2 receives the SSW feedback frame, it may also feed back an SSW confirmation frame to station 1 on the second channel to instruct it to receive the SSW feedback frame.

FIG. 10 is a second signaling flow chart of sector scanning performed by station 1 and station 2 in a sector scanning method provided by an embodiment of the present application. In the example in FIG. 10 , both the initiator and the responder are user equipments, the initiator may be station 2, and the responder may be station 1, then station 2 may use OCT to send a request frame to station 1 on the first channel, Such as the request frame for beamforming training. Station 1, as the responder, receives the request frame sent by station 2 on the first channel by using the OCT. The request frame includes: sector scanning parameters of station 2.

After receiving the request frame and obtaining the sector scanning parameters of the station 2, the station 1 may use the OCT to return a response frame to the station 2 on the first channel, such as a response frame for beamforming training. Station 2 may use the OCT to receive the response frame sent by station 1 on the first channel. The response frame includes: sector scanning parameters of station 1.

In the first phase shown in FIG. 10 , station 1 may send multiple SSW frames to station 2 on the second channel with multiple transmission sectors according to the sector scanning parameters of station 2, so that station 2 may send multiple SSW frames to station 2 according to the sector scanning parameters of station 1. sector scan parameters, receive the plurality of SSW frames with multiple receiving sectors on the second channel, and then determine the optimal receiving sector of the station 2 according to the receiving conditions of the plurality of SSW frames, and the station 1 The optimal transmit sector for .

In the second stage shown in FIG. 10 , station 2 can determine the optimal receiving sector of station 2 if it is determined according to the sector scanning parameters of station 2 that station 2 supports antenna reciprocity and antenna pattern reciprocity. The area is the optimal transmission sector of the site 2; if it is determined according to the sector scan parameters of the site 1 that the site 1 supports antenna reciprocity and antenna pattern reciprocity, then the optimal transmission sector of the site 1 can be determined It is the optimal receiving sector of the station 1, so the SSW frame can be sent to the station 1 with the optimal receiving sector of the station 2 in the time period corresponding to the optimal transmitting sector of the station 1 on the second channel, Make station 1 receive the SSW frame with a plurality of receiving sectors on the second channel according to the sector scanning parameters of station 2, and if the SSW frame is received, it can know the optimal Launch sector.

If station 1 can determine that station 1 supports antenna reciprocity and antenna pattern reciprocity according to the sector scanning parameters of station 1, then it can be determined that the optimal transmission sector of station 1 is the optimal reception sector of station 1. sector.

FIG. 11 is a third signaling flow chart of sector scanning performed by station 1 and station 2 in a sector scanning method provided by an embodiment of the present application. In the example corresponding to FIG. 11 , both the initiator and the responder are user equipments, and the initiator can use station 2 as the initiator, and use OCT to send a request frame to station 1 on the first channel, such as beamforming training request frame. Station 1, as the responder, receives the request frame sent by station 2 on the first channel by using the OCT. The request frame includes: sector scanning parameters of station 2.

After receiving the request frame and obtaining the sector scanning parameters of the station 2, the station 1 may use the OCT to return a response frame to the station 2 on the first channel, such as a response frame for beamforming training. Station 2 may use the OCT to receive the response frame sent by station 1 on the first channel. The response frame includes: sector scanning parameters of station 1.

In the first stage shown in FIG. 11 , station 1 may send multiple SSW frames to station 2 on the second channel with multiple transmission sectors according to the sector scanning parameters of station 2, so that station 2 may send multiple SSW frames to station 2 according to the sector scanning parameters of station 1. sector scan parameters, receive the plurality of SSW frames with multiple receiving sectors on the second channel, and then determine the optimal receiving sector of the station 2 according to the receiving conditions of the plurality of SSW frames, and the station 1 The optimal transmit sector for .

In the second stage shown in FIG. 11 , the station 2 can determine the optimal receiving sector of the station 2 if it is determined according to the sector scan parameters of the station 2 that the station 2 supports antenna reciprocity and antenna mode reciprocity. The zone is the optimal transmitting sector of the station 2. In the second stage, station 2 also uses OCT to send the SSW feedback frame to station 1 on the first channel, so that station 1 receives the SSW feedback frame on the first channel by using OCT. The SSW feedback frame includes: information on the optimal transmission sector of station 1, if station 1 determines that station 1 supports antenna mutuality and antenna mode mutuality according to the sector scan parameters of station 1, then station 1 can be determined The optimal transmitting sector of is the optimal receiving sector of the station 1.

When station 1 receives the SSW feedback frame, it may also use OCT to feed back an SSW confirmation frame to station 2 on the first channel to instruct it to receive the SSW feedback frame.

In the embodiment of the present application, the network device can also send the sector scanning parameters of the network device to the user equipment on the low frequency channel in advance, which reduces the overhead of signaling interaction on the high frequency channel, and enables the user equipment to know the network device's status in advance. The sector scan parameters enable network equipment and user equipment to perform sector scan on high-frequency channels according to the sector scan parameters of the network equipment, so as to realize precise sector scan of network equipment and user equipment on high-frequency channels, and Blind switching of sectors is avoided, thereby effectively reducing the time-consuming sector training on high-frequency channels and improving the efficiency of high-frequency sector training.

The sector scanning method provided by this implementation will be described below with reference to multiple examples.

FIG. 12 is a flow chart of another sector scanning method provided by the embodiment of the present application. As shown in Figure 12, the sector scanning method may include the following:

S1201. The network device sends a beacon (Beacon) frame to the user equipment on a first channel, where the beacon frame includes: sector scanning parameters of the network device.

The sector scan parameter of the network device may be used to enable the user equipment to perform sector scan on the second channel according to the sector scan parameter of the network device.

Both the network device and the user equipment can be dual-mode communication devices, that is, the network device and the user equipment can also support the communication mode of the second channel when they support the communication mode of the first channel.

The description of the first channel and the second channel is similar to the description in S601 in the foregoing embodiment, and will not be repeated here.

Correspondingly, the method may include:

S1202. The user equipment receives a beacon frame from the network device on the first channel, where the beacon frame includes: sector scan parameters of the network device.

S1203. The network device performs a sector scan on a second channel according to the sector scan parameter of the network device, and the frequency of the second channel is higher than the frequency of the first channel.

S1204. The user equipment performs a sector scan on a second channel according to the sector scan parameter of the network device, and the frequency of the second channel is higher than the frequency of the first channel.

The network device may scan the transmission sector of the network device on the second channel according to the sector scan parameters of the network device, that is, send the transmission sector to the user equipment on the second channel according to the sector scan parameters of the network device Training frames for transmit sector scanning of network devices. Correspondingly, the user equipment may receive the training frame sent by the network equipment on the second channel according to the sector scanning parameters of the network equipment, and perform the receiving sector scanning of the user equipment.

The user equipment may also send a training frame to the network device on the second channel according to the sector scan parameters of the network device, so as to perform the transmit sector scan of the user equipment. Correspondingly, the network device may receive the training frame sent by the user equipment on the second channel according to the sector scan parameter of the network device, and perform the receiving sector scan of the network device.

In the embodiment shown in FIG. 12 , the training frame may be a beacon frame or an SSW frame. If the beacon frame transmitted on the first channel only includes the information to be transmitted of the low-frequency beacon frame, then the training frame can be a high-frequency beacon frame; if the beacon frame transmitted on the first channel includes: the low-frequency beacon frame For the information to be transmitted, and the information to be transmitted in the high-frequency beacon frame, the training frame may be an SSW frame.

By executing the above S1203 and S1204, the network equipment can be made to determine the optimal transmission sector of the user equipment and the optimal reception sector of the network equipment, so that the user equipment can determine the optimal reception sector of the user equipment and the optimal reception sector of the network equipment. Launch sector.

In order to enable the network equipment and the user equipment to know their respective optimal transmission sectors, the user equipment may carry the information of the optimal transmission sector of the network equipment on the second channel after scanning the reception sector of the user equipment. In the training frame, it is sent to the network device, so that the network device knows the optimal transmission sector of the network device.

And, after performing the receiving sector scanning of the network equipment, the information of the optimal transmitting sector of the user equipment may be carried by the network equipment in a feedback frame such as a sector scanning feedback (Sector Sweeping Feedback, SSW Feedback) frame, and sent to the user equipment, so that the user equipment learns the optimal transmission sector of the user equipment. After receiving the feedback frame, the user equipment may also send an acknowledgment frame to the network equipment to inform the network equipment that the user equipment has received the feedback frame.

The network device may send a feedback frame including the optimal transmission sector of the user equipment to the user equipment on the second channel, then the user equipment may also receive the optimal transmission sector of the user equipment sent by the network device on the second channel. Feedback frame for the transmit sector.

The network device can also use OCT to send a feedback frame including the optimal transmission sector of the user equipment to the user equipment on the first channel, then the user equipment also needs to use OCT to receive the feedback frame sent by the network device on the first channel including the user equipment. The feedback frame of the optimal transmitting sector of .

The sector scan method provided in the embodiment of the present application can send a beacon frame including the sector scan parameters of the network device to the user equipment through the network device on the low frequency channel, which reduces the signaling overhead on the high frequency channel, and Both the network equipment and the user equipment can perform accurate sector scanning on the high-frequency channel according to the sector scanning parameters of the network equipment, avoiding blind switching of sectors, thereby effectively reducing the number of sectors on the high-frequency channel. Reduce the time consumption of zone training and improve the efficiency of sector training.

In an implementation manner, the sector scanning parameters of the network device as shown above may include at least one of the following information:

The start time of sector scanning by the network device, the number of sectors of the network device, the number of antennas of the network device, the indication information of the antenna reciprocity of the network device, the indication of the antenna mode reciprocity of the network device information, the length of the training frame for the network device to scan the sector, and the training mode indication information of the network device;

The sector scan parameters of the network device include the start time for the network device to perform the sector scan and the length of the training frame for the network device to perform the sector scan, which can make the network device and the user equipment based on the start time and the The length of the training frame realizes synchronous sector switching, so that the network equipment and user equipment use the same frequency or beat to perform sector switching, realizes precise sector switching between network equipment and user equipment, and reduces the need for sector switching on high-frequency channels. Reduce the time-consuming area scanning and improve the efficiency of sector scanning.

Wherein, the number of sectors of the network device is the number of sectors used by the network device for sector scanning.

The number of antennas of the network device is the number of antennas used by the network device for sector scanning.

The indication information of the antenna mutuality of the network device is used to indicate whether the optimal transmitting antenna of the network device is the optimal receiving antenna of the network device. For example, if the indication information of the antenna reciprocity of the network device is used to indicate that the optimal transmitting antenna of the network device is the optimal receiving antenna of the network device, then the network device supports antenna reciprocity. If the indication information of the antenna reciprocity of the network device is used to indicate that: the optimal transmitting antenna of the network device is not the optimal receiving antenna of the network device, the network device does not support antenna reciprocity.

The indication information of the antenna pattern mutuality of the network device is used to indicate: whether the antenna weight corresponding to the transmitting antenna pattern of the network device is the antenna weight corresponding to the receiving antenna pattern of the network device. For example, if the indication information of the antenna mode mutual dissimilarity of the network device is used to indicate: the antenna weight corresponding to the transmit antenna mode of the network device is the antenna weight corresponding to the receive antenna mode of the network device, then the network device supports the antenna mode of mutuality. If the indication information of the antenna mode mutual dissimilarity of the network device is used to indicate: the antenna weight corresponding to the transmit antenna mode of the network device is not the antenna weight corresponding to the receive antenna mode of the network device, then the network device does not support mutual antenna mode. opposite sex.

The training mode indication information of the network device is used to indicate whether the training mode of the network device is a training mode directed at one end or a training mode directed at both ends. For example, if the indication information of the training mode of the network device is 0, it can be determined that when the network device performs sector scanning, one end of the network device and the user equipment adopts a directional transmission mode, while the other end adopts an omnidirectional reception mode , or, one end uses omnidirectional sending, while the other end uses directional receiving. If the indication information of the training mode of the network device is 1, it can be determined that when the network device performs sector scanning, one end of the network device and the user equipment adopts a directional transmission method, while the other end adopts a directional reception method.

Optionally, when the above-mentioned sector scan parameters of the network device, the training mode indication information of the network device is used to indicate that the training mode of the network device is a training mode directed at both ends, the sector scan parameters of the network device May also include:

The indication information of the sector scanning mode of the network device, and the indication information of the number of repetitions;

The indication information of the sector scan mode of the network device is used to indicate the corresponding relationship between the number of transmission times of the user equipment in each sector and the number of times of sector scan performed by the network device. For example, the indication information of the scan mode of the network device is 0, which can be used to indicate that the user equipment sends N training frames in each sector, and the network device performs a sector scan; the scan mode of the network device The indication information is 1, which can be used to instruct the user equipment to send a training frame once in each sector, while the network equipment repeats N times of sector scanning. Optionally, N may be the number of sectors of the network device.

The indication information of the number of repetitions is used to indicate the number of times the network device performs sector scans.

Optionally, the sector scanning parameters of the network device may also include at least one of the following information:

Indication information of the feedback type, indication information of whether the beacon frame carries the training sequence of the receiving end, and length indication information of the training sequence;

Wherein, the indication information of the feedback type is used to indicate whether the transmission mode of the feedback information between the network device and the user equipment adopts OCT. The feedback information fed back from the network device to the user equipment can be transmitted through, for example, an SSW feedback frame, and the indication information of the feedback type can be used to indicate whether the transmission mode of the SSW feedback frame adopts OCT, that is, it is used to indicate whether the SSW feedback frame is in the first For transmission on the second channel, OCT is still used for transmission on the first channel. The feedback information from the user equipment to the network equipment can be transmitted through, for example, an ACK frame, and the indication information of the feedback type can also be used to indicate whether the transmission mode of the ACK frame adopts OCT, that is, to indicate that the ACK frame is transmitted on the second channel , still using OCT to perform transmission on the first channel.

The sector scanning parameter of the network device may be carried in a preset subelement (subelement) in a multi-band element (Multi-band element) in a beacon frame transmitted on the first channel. For example, a sub-element is added to the beacon frame on the first channel, also known as the low-frequency beacon frame, to carry the sector scan parameter of the network device.

FIG. 13 is a schematic structural diagram of a preset sub-element of a multi-bandwidth element in a beacon frame provided by an embodiment of the present application. As shown in Figure 13, the preset sub-elements of the multi-bandwidth element in the beacon frame may include: an element identification (Element ID) field, a length (Length) field, a starting time (Starting Time) field, the number of sectors ( Number of sectors), number of antennas (Number of antennas) field, TRN-R indicator field, training frame length (Training frame length) field, training mode (TRN mode) field, scan mode field, and repetition times field. Among them, the TRN-R indication field, the scanning mode field and the repetition times field may be optional fields, that is to say, the optional fields may be included in the preset subelements of the multi-bandwidth element in the beacon frame , or not including this optional field.

The start time field may carry the start time for the network device to perform sector scan. The number of sectors field can carry the number of sectors of the network device. The number of antennas field is portable, the number of antennas of the network device.

The TRN-R indication field may carry indication information of whether the beacon frame carries the training sequence of the receiving end.

The training frame length field may carry, the length of the training frame that the network device performs sector scanning.

When carried in the training mode field, the training mode indication information of the network device is used to indicate that the training mode of the network device is a training mode directed at both ends. If the value of the training mode field is 1, the preset sub-element A scan mode field may also be included. Wherein, the scan mode field may carry indication information of the scan mode of the network device.

When the scan mode indication information of the network device carried in the scan mode field is used to instruct the user equipment to send a training frame once in each sector, and the network device repeats N sector scans, where N is the number of sectors of the network device, then the directional beamforming training control element may further include: a repetition count field.

The field of the number of repetitions may be used to indicate the number of repetitions for the network device to perform sector scanning, that is, N.

The other implementation manner provided by the embodiment of the present application, that is, the scheme of sending the sector scanning parameters of the network equipment to the user equipment through the network equipment, and then performing the sector scanning is described as follows through two specific examples. In the following example, an AP is used as a network device and a station is used as a user device for illustration.

FIG. 14 is a first signaling flow chart of sector scanning performed by an AP and a station in a sector scanning method provided by an embodiment of the present application. In the example corresponding to FIG. 14 , the AP may send a beacon frame to the station on the first channel, and the station receives the beacon frame sent by the AP on the first channel. The beacon frame transmitted on the first channel includes: sector scan parameters of the AP.

During the beacon transmission interval (Beacon Transmission Interval) shown in Figure 14, the AP can send multiple beacon frames, that is, high-frequency beacons, to the station with multiple transmit sectors on the second channel according to the sector scanning parameters of the AP. frame, so that the station receives the plurality of beacon frames on the second channel with a plurality of receiving sectors according to the sector scanning parameters of the AP, and then determines the optimal reception of the station according to the reception conditions of the plurality of beacon frames sector, and the optimal transmit sector of the AP.

During the association-beamforming training (Association Beamforming Training, A-BFT) shown in FIG. SSW frames, so that the AP receives the multiple SSW frames with multiple receiving sectors on the second channel according to the sector scanning parameters of AP1, and then determines the optimal reception of the AP according to the receiving conditions of the multiple SSW frames. sector, and the optimal transmit sector for that site. Wherein, the SSW frame may carry the information of the optimal transmitting sector of the AP determined by the station at the BTI.

After determining the optimal transmission sector of the station, the AP may also send the SSW feedback frame carrying the optimal transmission sector of the station to the station on the second channel during the A-BFT period.

In case of receiving the SSW feedback frame, the station may also feed back an SSW confirmation frame to the AP on the second channel during the A-BFT period to instruct it to receive the SSW feedback frame.

FIG. 15 is a second signaling flow chart of sector scanning between an AP and a station provided in an embodiment of the present application. In the example in FIG. 15 , the AP can send a beacon frame to the station on the first channel, and the station receives the beacon frame sent by the AP on the first channel. The beacon frame transmitted on the first channel includes: sector scan parameters of the AP. With respect to the above-mentioned Figure 14, in the example corresponding to Figure 15, the beacon frame transmitted on the first channel may also include: the information to be transmitted of the beacon frame on the second channel, also called high-frequency channel information The transmission content of the marked frame. In this way, the to-be-transmitted information of the beacon frame on the second channel is also transmitted on the first channel, which can further reduce the signaling overhead of the second channel, that is, the high-frequency channel.

In the example in Figure 15, the operation of the AP and the station in the BTI is similar to the above Figure 14, the difference is that in the above Figure 14 of the transmission, the beacon frame is used as the training frame, and in the example in Figure 15, the SSW frame is used as the training frame frame. For the similarities, refer to the above, and will not repeat them here.

In the example in FIG. 15 , the operations of the AP and the station during the A-BFT period are similar to those in FIG. 14 . For details, refer to the above, and details will not be repeated here.

In the scenario of an asymmetric link with a high-frequency channel, the user equipment can receive the downlink frame sent by the network device on the high-frequency channel, and the network device may not receive the frame at the high-frequency channel due to the low transmit power and antenna gain of the user equipment. The uplink frame sent by the user equipment cannot be received on the channel. For a network device and a user equipment with an asymmetric link, the embodiment of the present application may further provide a sector scanning method, so as to implement sector scanning between the network device and the user equipment. FIG. 16 is a signaling flow chart of sector scanning performed by an AP and a station in yet another sector scanning method provided by an embodiment of the present application. In the example in Figure 16, continue to use the AP as the network device and the station as the user equipment, the AP can send multiple beacon frames, that is, high-frequency beacon frames, to the station with multiple transmission sectors on the second channel, so that the station can transmit multiple beacon frames to the station on the second channel. The multiple beacon frames are received by multiple receiving sectors on the channel, and the optimal receiving sector of the station and the optimal transmitting sector of the AP are determined according to the receiving conditions of the multiple beacon frames.

However, due to the existence of the asymmetric link, the information transmitted by the station to the AP on the second channel may not be received by the AP. Therefore, the station may transmit the SSW feedback frame to the AP on the first channel using OCT. The AP may use the OCT to receive the SSW feedback frame sent by the station on the second channel, and determine the optimal transmission sector of the AP.

The AP may also use the OCT to send an SSW confirmation frame to the station on the first channel to indicate that the AP has received the SSW feedback frame. Correspondingly, the station may use the OCT to receive the SSW confirmation frame on the first channel. The first channel may be a low frequency channel, and the second channel may be a high frequency channel.

The SSW feedback frame may carry parameters of the receiving sector. In this embodiment, the parameters of the receiving sector may include: an identifier of the receiving sector, an identifier of an antenna corresponding to the receiving sector, and the like. The SSW feedback frame may include: a Number of items (Number of iterms) field, and an information field corresponding to N receiving sectors. Wherein, the information field corresponding to each receiving sector may include: a sector identification field and an antenna identification field. Wherein, the sector identification field may carry the identification of each receiving sector. The antenna identification field may carry the identification of the antenna corresponding to each receiving sector.

After receiving the SSW confirmation frame, the station can use the optimal receiving sector of the station to transmit to the AP within the time period corresponding to the optimal transmitting sector of the AP according to the parameters of the receiving sector indicated in the SSW feedback. Send SSW frame. The SSW feedback frame may include: information of the optimal transmitting sector of the AP.

The AP can then determine its residence time in each receiving sector according to the parameters of the receiving sector indicated by the SSW feedback frame, and receive the SSW frame sent by the station on the second channel to realize the scanning of the receiving sector of the AP. , determine the optimal receiving sector of the AP, and the optimal transmitting sector of the station.

In the solution of this embodiment, the station can use OCT to transmit the parameters of the receiving sector to the AP on the low-frequency channel, so that the AP can receive the SSW frame sent by the station on the high-frequency channel based on the parameters of the receiving sector, avoiding The unreachable problem of asymmetric links enables the site and AP to perform precise sector scanning on high-frequency channels, avoiding blind switching of sectors, thus effectively reducing the time-consuming sector scanning on high-frequency channels , to improve the efficiency of sector scanning.

The embodiment of the present application may also provide an initiator device, where the initiator device may have any function of the initiator or any function of the network device involved in any one of the methods in FIGS. 5-16 above. FIG. 17 is a first structural schematic diagram of a sector scanning device provided by an embodiment of the present application. As shown in Figure 17, the sector scanning device 1700 may include:

In one implementation, the low frequency module 1701 is configured to send a first frame to the responder on a first channel; the first frame includes: sector scanning parameters of the initiator; and receive the response on the first channel The second frame sent by the responding party, the second frame includes: sector scan parameters of the responding party;

The high frequency module 1702 is configured to perform sector scan on a second channel according to the sector scan parameters of the responder; the frequency of the second channel is higher than the frequency of the first channel.

In another implementation manner, the low frequency module 1701 is configured to send a beacon frame to the user equipment on the first channel; the beacon frame includes: sector scan parameters of the network device;

The high frequency module 1702 is configured to perform sector scanning on a second channel according to the sector scanning parameters of the network device; the frequency of the second channel is higher than the frequency of the first channel.

The above-mentioned sector scanning apparatus 1700 also includes: a processing module 1703, configured to generate information to be sent, and/or process received information, and can also be used to control the high frequency module 1702 according to the sector scanning parameters of the network equipment Sector scanning is done on the second channel.

It should be understood that the sector scanning device 1700 has any function of the initiator or network device in any of the methods described in FIGS. 5-16 above. method, which will not be repeated here.

The sector scanning device provided by the above-mentioned embodiments of the present application can be realized in various product forms, for example, the sector scanning device can be configured as a general-purpose processing system; for example, the sector scanning device can be composed of a general Bus architecture; for example, the sector scanning device can be realized by ASIC (Application Specific Integrated Circuit) and so on. Several possible product forms of the sector scanning device according to the embodiment of the present application are provided below. It should be understood that the following are only examples, and the possible product forms of the embodiment of the present application are not limited thereto.

FIG. 18 is a first structural diagram of a possible product form of the sector scanning device described in the embodiment of the present application.

As a possible product form, the sector scanning device includes a processor 1802 and a transceiver 1804 ; optionally, the sector scanning device may further include a storage medium 1803 . Transceivers 1804 include low frequency transceivers and high frequency transceivers. The low-frequency transceiver is used to support communication between the initiator device and the responder device on the low-frequency channel, so as to send the information or instructions involved in the above method to the responder device on the low-frequency channel, and receive the information sent by the responder device on the low-frequency channel. or, used to support communication between the network device and the user equipment on the low frequency channel, so as to send a beacon frame to the user equipment on the low frequency channel. The high-frequency transceiver is used to support the sector scanning of the initiator and the responder on the high-frequency channel; or, is used to support the sector scanning of the network equipment and the user equipment on the high-frequency channel.

As another possible product form, the sector scanning device is also implemented by a general-purpose processor, that is, commonly known as a chip. The general-purpose processor includes: a processor 1802 and a transceiver interface 1805 /a transceiver pin 1806 ; optionally, the general-purpose processor may also include a storage medium 1803 . The transceiver interface 1805 includes a low-frequency transceiver interface and a high-frequency transceiver interface. The low-frequency transceiver interface is used to support communication between the initiator device and the responder device on the low-frequency channel, so as to send the information or instructions involved in the above method to the responder device on the low-frequency channel, and receive the responder device on the low-frequency channel The information or instructions sent; or, used to support communication between the network device and the user equipment on the low frequency channel, so as to send beacon frames to the user equipment on the low frequency channel. The high-frequency transceiver interface is used to support the sector scanning of the initiator and the responder on the high-frequency channel; or, is used to support the sector scanning of the network device and the user equipment on the high-frequency channel.

The transceiver pins 1806 include low frequency transceiver pins and high frequency transceiver pins. The low-frequency transceiver pin is used to support communication between the initiator device and the responder device on the low-frequency channel, so as to send the information or instructions involved in the above method to the responder device on the low-frequency channel, and receive the responder device on the low-frequency channel. Information or instructions sent by the device; or, used to support communication between the network device and the user equipment on the low-frequency channel, so as to send beacon frames to the user equipment on the low-frequency channel. The high-frequency transceiver pin is used to support the sector scanning of the initiator and the responder on the high-frequency channel; or, is used to support the sector scanning of the network device and the user equipment on the high-frequency channel.

As another possible product form, the sector scanning device can also be implemented using the following: one or more Field-Programmable Gate Arrays (Field-Programmable Gate Array, FPGA), Programmable Logic Device (Programmable Logic Device, PLD ), controllers, state machines, gate logic, discrete hardware components, any other suitable circuitry, or any combination of circuitry capable of performing the various functions described throughout this application.

Optionally, the embodiment of the present application further provides a computer-readable storage medium. The computer-readable storage medium may include: instructions, which, when run on a computer, cause the computer to execute the sector scanning method executed by any initiator in FIGS. 5-16 in the above-mentioned embodiments.

Optionally, the embodiments of the present application further provide a computer program product including instructions, which, when run on a computer, cause the computer to execute the information executed by any one of the initiators or network devices in Figures 5-16 in the above embodiments. Sector scan method.

Each function of the computer program product may be realized by hardware or software, and when realized by software, these functions may be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable storage medium .

The sector scanning device, computer-readable storage medium, and computer program product of the embodiment of the present application can execute the sector scanning method performed by any initiator or network device in the above-mentioned Figures 5-16, and its specific implementation process and benefits For the effect, refer to the above, and will not repeat it here.

The embodiment of the present application may further provide a sector scanning device, and the sector scanning device may have any function of the responder or user equipment involved in any one of the methods in FIGS. 5-16 above. FIG. 19 is a second structural schematic diagram of a sector scanning device provided by an embodiment of the present application. As shown in Figure 19, the sector scanning device 1900 may include:

In one implementation manner, the low frequency module 1901 is configured to receive a first frame from the initiator on a first channel, where the first frame includes: sector scanning parameters of the initiator; The initiator sends a second frame, where the second frame includes: sector scan parameters of the responder;

The high frequency module 1902 performs sector scanning on a second channel according to the sector scanning parameters of the initiator; the frequency of the second channel is higher than the frequency of the first channel.

In another implementation manner, the low frequency module 1901 is configured to receive a beacon frame from a network device on a first channel, where the beacon frame includes: sector scan parameters of the network device;

The high frequency module 1902 performs sector scanning on a second channel according to the sector scanning parameters of the network device; the frequency of the second channel is higher than the frequency of the first channel.

The above-mentioned sector scanning device 1900 also includes:

The processing module 1903 is configured to generate information to be sent and/or process received information, and may also be configured to control the high frequency module 1902 to perform sector scanning on the second channel according to the sector scanning parameters of the network device .

It should be understood that the sector scanning apparatus 1900 has any function of the responder or user equipment in any of the methods described in any of the above-mentioned FIGS. method, which will not be repeated here.

The sector scanning device provided by the above-mentioned embodiments of the present application can be realized in various product forms, for example, the sector scanning device can be configured as a general-purpose processing system; for example, the sector scanning device can be composed of a general Bus architecture; for example, the sector scanning device can be realized by ASIC (Application Specific Integrated Circuit) and so on. Several possible product forms of the sector scanning device according to the embodiment of the present application are provided below. It should be understood that the following are only examples, and the possible product forms of the embodiment of the present application are not limited thereto.

FIG. 20 is a second structural diagram of a possible product form of the sector scanning device according to the embodiment of the present application.

As a possible product form, the sector scanning device includes a processor 2002 and a transceiver 2004; optionally, the sector scanning device may further include a storage medium 2003. Transceivers 2004 include low frequency transceivers and high frequency transceivers. The low-frequency transceiver is used to support communication between the initiator device and the responder device on the low-frequency channel, so as to send the information or instructions involved in the above method to the initiator device on the low-frequency channel, and receive the information sent by the initiator device on the low-frequency channel. information or instructions; or, used to support communication between the network device and the user equipment on the low-frequency channel, so as to receive the beacon frame sent by the network device on the low-frequency channel. The high-frequency transceiver is used to support the sector scanning of the initiator and the responder on the high-frequency channel; or, is used to support the sector scanning of the network equipment and the user equipment on the high-frequency channel.

As another possible product form, the sector scanning device is also implemented by a general-purpose processor, that is, commonly known as a chip. The general-purpose processor includes: a processor 2002 and a transceiver interface 2005/a transceiver pin 2006; optionally, the general-purpose processor may also include a storage medium 2003. The transceiver interface 2005 includes a low-frequency transceiver interface and a high-frequency transceiver interface. The low-frequency transceiver interface is used to support communication between the initiator device and the responder device on the low-frequency channel, so as to send the information or instructions involved in the above method to the initiator device on the low-frequency channel, and receive the initiator device on the low-frequency channel The information or instruction sent; or, used to support the communication between the network device and the user equipment on the low-frequency channel, so as to receive the beacon frame sent by the network device on the low-frequency channel. The high-frequency transceiver interface is used to support the sector scanning of the initiator and the responder on the high-frequency channel; or, is used to support the sector scanning of the network device and the user equipment on the high-frequency channel.

The transceiver pins 2006 include low frequency transceiver pins and high frequency transceiver pins. The low-frequency transceiver pin is used to support the communication between the initiator device and the responder device on the low-frequency channel, so as to send the information or instructions involved in the above method to the initiator device on the low-frequency channel, and receive the initiator device on the low-frequency channel. The information or instruction sent by the device; or, used to support the communication between the network device and the user equipment on the low-frequency channel, so as to receive the beacon frame sent by the network device on the low-frequency channel. The high-frequency transceiver pin is used to support the sector scanning of the initiator and the responder on the high-frequency channel; or, is used to support the sector scanning of the network device and the user equipment on the high-frequency channel.

As another possible product form, the sector scanning device can also be implemented using the following: one or more FPGAs, PLDs, controllers, state machines, gate logic, discrete hardware components, any other suitable circuits, or capable of Any combination of circuits to perform the various functions described throughout this application.

Optionally, the embodiment of the present application further provides a computer-readable storage medium. The computer-readable storage medium may include: instructions, which, when run on a computer, cause the computer to execute the sector scanning method executed by any responder or user equipment in FIGS. 5-16 in the above embodiments.

Optionally, the embodiments of the present application further provide a computer program product including instructions, which, when run on a computer, cause the computer to execute the information executed by any responder or user equipment in Figures 5 to 16 in the above embodiments. Sector scan method.

Each function of the computer program product may be realized by hardware or software, and when realized by software, these functions may be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable storage medium .

The sector scanning device, computer-readable storage medium, and computer program product of the embodiments of the present application can execute the sector scanning method performed by any responder or user equipment in Figures 5-16 above, and its specific implementation process and benefits For the effect, refer to the above, and will not repeat it here.

The embodiment of the present application may also provide a network system, where the network system may include an initiator device and a responder device. The initiator device is connected to the responder device; the initiator device can be the sector scanning device described in any one of Figure 17 or 18 above, to execute the sector scanning method performed by any initiator in Figure 5-Figure 11 above, specifically For implementation, refer to the above, and details will not be repeated here. The responder device can be the sector scanning device described in any one of Figure 19 or 20 above, to execute the sector scanning method performed by any responder in Figure 5-11 above, the specific implementation refers to the above, and will not be repeated here .

The system can implement the sector scanning method between the initiator and the responder in any of the above embodiments, and its specific implementation process and beneficial effects can be found in the above, and will not be repeated here.

An embodiment of the present application may also provide a network system, where the network system may include a network device and a user device. The network device is connected to the user equipment; the network device can be the sector scanning device described in any of the above-mentioned Figures 17 or 18, so as to execute the sector scanning method performed by any of the network devices in the above-mentioned Figures 12-16, and the specific implementation refers to the above-mentioned , which will not be repeated here. The user equipment may be the sector scanning apparatus described in any one of FIG. 19 or 20 to execute the sector scanning method performed by the user equipment in any one of FIG. 12-FIG.

The system can implement the sector scanning method between the network equipment and the user equipment in any of the above embodiments, and its specific implementation process and beneficial effects can be referred to above, and will not be repeated here.

It should be noted that, in the above embodiments, all or part may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions include being stored in, or transmitted from, one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server, or data center Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (such as a floppy disk, a hard disk, or a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

Claims (24)

1. A sector scanning method, characterized in that, comprising: The initiator sends a first frame to the responder on the first channel; the first frame includes: sector scan parameters of the initiator; The initiator receives a second frame sent by the responder on the first channel, and the second frame includes: sector scan parameters of the responder; The initiator performs a sector scan on a second channel according to the sector scan parameters of the responder; the frequency of the second channel is higher than the frequency of the first channel; The sector scanning parameters of the initiator include the training mode indication information of the initiator, and the training mode indication information of the initiator is used to indicate whether the training mode of the initiator is a one-end oriented training mode or a two-end oriented training mode. All directional training mode; When the training mode indication information of the initiator is used to indicate that the training mode of the initiator is a training mode directed at both ends, the sector scan parameters of the initiator further include: Indication information of the sector scan mode of the initiator; Wherein, the indication information of the initiator's sector scan mode is used to indicate the corresponding relationship between the number of times the responder sends in each sector and the number of times the initiator performs sector scans. 2. The method according to claim 1, wherein the sector scanning parameters of the initiator further include at least one of the following information: The start time for the initiator to scan the sector, the number of sectors of the initiator, the number of antennas of the initiator, the indication information of the antenna reciprocity of the initiator, the number of antennas of the initiator The indication information of the pattern mutuality, the length of the training frame for the sector scanning by the initiator; Wherein, the number of sectors of the initiator is the number of sectors used by the initiator for sector scanning; The number of antennas of the initiator is the number of antennas used by the initiator for sector scanning; The indication information of the antenna reciprocity of the initiator is used to indicate: whether the optimal transmitting antenna of the initiator is the optimal receiving antenna of the initiator; The indication information of the antenna mode mutual dissimilarity of the initiator is used to indicate whether the antenna weight corresponding to the transmitting antenna mode of the initiator is the antenna weight corresponding to the receiving antenna mode of the initiator. 3. The method according to claim 1 or 2, wherein the sector scanning parameters of the initiator further include at least one of the following information: The frame type of the first frame, the indication information indicating whether the initiator requests the transmit sector scan, the indication information whether the initiator requests the receive sector scan, the feedback type indication information, the first frame Whether to carry the indication information of the training sequence of the receiving end and the length indication information of the training sequence; Wherein, the indication information of the feedback type is used to indicate whether the transmission mode of the feedback information between the initiator and the responder adopts a tunnel transparent transmission mechanism OCT. 4. The method according to claim 1 or 2, wherein the sector scan parameters of the responder include at least one of the following information: The starting time of sector scanning by the responding party, the number of sectors of the responding party, the number of antennas of the responding party, the indication information of the antenna reciprocity of the responding party, the antenna number of the responding party The indication information of mode mutuality, the length of the training frame for the responder to perform sector scanning, and the indication information of the training mode of the responder; Wherein, the number of sectors of the responder is the number of sectors used by the responder for sector scanning; The number of antennas of the responder is the number of antennas used by the responder for sector scanning; The indication information of the antenna reciprocity of the responding party is used to indicate: whether the optimal transmitting antenna of the responding party is the optimal receiving antenna of the responding party; The indication information of the antenna mode reciprocity of the responder is used to indicate: whether the antenna weight corresponding to the transmit antenna mode of the responder is the antenna weight corresponding to the receive antenna mode of the responder; The training mode indication information of the responder is used to indicate whether the training mode of the responder is a one-end oriented training mode or both ends oriented training mode. 5. The method according to claim 4, wherein when the training mode indication information of the responder is used to indicate that the training mode of the responder is a training mode with both ends oriented, the responder's Sector scan parameters also include: Indication information of the sector scan mode of the responder; Wherein, the indication information of the responder's sector scanning mode is used to indicate the corresponding relationship between the sending times of the initiator in each sector and the number of sector scanning performed by the responding party. 6. The method according to claim 4, wherein the sector scan parameters of the responder further include at least one of the following information: The frame type of the second frame, the indication information indicating whether the responder requests the transmit sector scan, the indication information whether the responder requests the receive sector scan, the feedback type indication information, the second frame Whether to carry the indication information of the training sequence of the receiving end and the length indication information of the training sequence; Wherein, the indication information of the feedback type is used to indicate whether the transmission mode of the feedback information between the initiator and the responder adopts a tunnel transparent transmission mechanism OCT. 7. A sector scanning method, characterized in that, comprising: The responder receives a first frame from the initiator on the first channel, where the first frame includes: sector scan parameters of the initiator; The responder sends a second frame to the initiator on the first channel, the second frame including: sector scan parameters of the responder; The responder performs a sector scan on a second channel according to the sector scan parameters of the initiator; the frequency of the second channel is higher than the frequency of the first channel; The sector scanning parameters of the initiator include the training mode indication information of the initiator, and the training mode indication information of the initiator is used to indicate whether the training mode of the initiator is a one-end oriented training mode or a two-end oriented training mode. All directional training mode; When the training mode indication information of the initiator is used to indicate that the training mode of the initiator is a training mode directed at both ends, the sector scan parameters of the initiator further include: Indication information of the sector scan mode of the initiator; Wherein, the indication information of the initiator's sector scan mode is used to indicate the corresponding relationship between the number of times the responder sends in each sector and the number of times the initiator performs sector scans. 8. The method according to claim 7, wherein the sector scanning parameters of the initiator further include at least one of the following information: The start time for the initiator to scan the sector, the number of sectors of the initiator, the number of antennas of the initiator, the indication information of the antenna reciprocity of the initiator, the number of antennas of the initiator The indication information of the pattern mutuality, the length of the training frame for the sector scanning by the initiator; Wherein, the number of sectors of the initiator is the number of sectors used by the initiator for sector scanning; The number of antennas of the initiator is the number of antennas used by the initiator for sector scanning; The indication information of the antenna reciprocity of the initiator is used to indicate: whether the optimal transmitting antenna of the initiator is the optimal receiving antenna of the initiator; The indication information of the antenna mode mutual dissimilarity of the initiator is used to indicate whether the antenna weight corresponding to the transmitting antenna mode of the initiator is the antenna weight corresponding to the receiving antenna mode of the initiator. 9. The method according to claim 8, wherein the sector scan parameters of the initiator further include at least one of the following information: The frame type of the first frame, the indication information indicating whether the initiator requests the transmit sector scan, the indication information whether the initiator requests the receive sector scan, the feedback type indication information, the first frame Whether to carry the indication information of the training sequence of the receiving end and the length indication information of the training sequence; Wherein, the indication information of the feedback type is used to indicate whether the transmission mode of the feedback information between the initiator and the responder adopts a tunnel transparent transmission mechanism OCT. 10. The method according to claim 7, wherein the sector scan parameters of the responder include at least one of the following information: The starting time of sector scanning by the responding party, the number of sectors of the responding party, the number of antennas of the responding party, the indication information of the antenna reciprocity of the responding party, the antenna number of the responding party The indication information of mode mutuality, the length of the training frame for the responder to perform sector scanning, and the indication information of the training mode of the responder; Wherein, the number of sectors of the responder is the number of sectors used by the responder for sector scanning; The number of antennas of the responder is the number of antennas used by the responder for sector scanning; The indication information of the antenna reciprocity of the responding party is used to indicate: whether the optimal transmitting antenna of the responding party is the optimal receiving antenna of the responding party; The indication information of the antenna mode reciprocity of the responder is used to indicate: whether the antenna weight corresponding to the transmit antenna mode of the responder is the antenna weight corresponding to the receive antenna mode of the responder; The training mode indication information of the responder is used to indicate whether the training mode of the responder is a one-end oriented training mode or both ends oriented training mode. 11. The method according to claim 10, wherein when the training mode indication information of the responder is used to indicate that the training mode of the responder is a training mode with both ends oriented, the responder's Sector scan parameters also include: Indication information of the sector scan mode of the responder; Wherein, the indication information of the responder's sector scanning mode is used to indicate the corresponding relationship between the sending times of the initiator in each sector and the number of sector scanning performed by the responding party. 12. The method according to claim 10 or 11, wherein the sector scan parameters of the responder further include at least one of the following information: The frame type of the second frame, the indication information indicating whether the responder requests the transmit sector scan, the indication information whether the responder requests the receive sector scan, the feedback type indication information, the second frame Whether to carry the indication information of the training sequence of the receiving end and the length indication information of the training sequence; Wherein, the indication information of the feedback type is used to indicate whether the transmission mode of the feedback information between the initiator and the responder adopts a tunnel transparent transmission mechanism OCT. 13. A sector scanning device on the initiator side, comprising: The low-frequency module is configured to send a first frame to the responder on the first channel; the first frame includes: sector scan parameters of the initiator; receive the first frame sent by the responder on the first channel Two frames, the second frame includes: sector scan parameters of the responder; A processing module, configured to control the high-frequency module to perform sector scanning on a second channel according to the sector scanning parameters of the responder; the frequency of the second channel is higher than the frequency of the first channel; The sector scanning parameters of the initiator include the training mode indication information of the initiator, and the training mode indication information of the initiator is used to indicate whether the training mode of the initiator is a one-end oriented training mode or a two-end oriented training mode. All directional training mode; When the training mode indication information of the initiator is used to indicate that the training mode of the initiator is a training mode directed at both ends, the sector scan parameters of the initiator further include: Indication information of the sector scan mode of the initiator; Wherein, the indication information of the initiator's sector scan mode is used to indicate the corresponding relationship between the number of times the responder sends in each sector and the number of times the initiator performs sector scans. 14. The device according to claim 13, wherein the sector scan parameters of the initiator further include at least one of the following information: The start time for the initiator to scan the sector, the number of sectors of the initiator, the number of antennas of the initiator, the indication information of the antenna reciprocity of the initiator, the number of antennas of the initiator The indication information of the pattern mutuality, the length of the training frame for the sector scanning by the initiator; Wherein, the number of sectors of the initiator is the number of sectors used by the initiator for sector scanning; The number of antennas of the initiator is the number of antennas used by the initiator for sector scanning; The indication information of the antenna reciprocity of the initiator is used to indicate: whether the optimal transmitting antenna of the initiator is the optimal receiving antenna of the initiator; The indication information of the antenna mode mutual dissimilarity of the initiator is used to indicate whether the antenna weight corresponding to the transmitting antenna mode of the initiator is the antenna weight corresponding to the receiving antenna mode of the initiator. 15. The device according to claim 13 or 14, wherein the sector scanning parameters of the initiator further include at least one of the following information: The frame type of the first frame, the indication information indicating whether the initiator requests to perform a transmit sector scan, the indication information indicating whether the initiator requests a receive sector scan, the indication information of the feedback type, the first frame Whether to carry the indication information of the training sequence of the receiving end and the length indication information of the training sequence; Wherein, the indication information of the feedback type is used to indicate whether the transmission mode of the feedback information between the initiator and the responder adopts a tunnel transparent transmission mechanism OCT. 16. The device according to claim 13 or 14, wherein the sector scan parameters of the responder include at least one of the following information: The starting time of sector scanning by the responding party, the number of sectors of the responding party, the number of antennas of the responding party, the indication information of the antenna reciprocity of the responding party, the antenna number of the responding party The indication information of mode mutuality, the length of the training frame for the responder to perform sector scanning, and the indication information of the training mode of the responder; Wherein, the number of sectors of the responder is the number of sectors used by the responder for sector scanning; The number of antennas of the responder is the number of antennas used by the responder for sector scanning; The indication information of the antenna reciprocity of the responding party is used to indicate: whether the optimal transmitting antenna of the responding party is the optimal receiving antenna of the responding party; The indication information of the antenna mode reciprocity of the responder is used to indicate: whether the antenna weight corresponding to the transmit antenna mode of the responder is the antenna weight corresponding to the receive antenna mode of the responder; The training mode indication information of the responder is used to indicate whether the training mode of the responder is a one-end oriented training mode or both ends oriented training mode. 17. The device according to claim 16, wherein when the training mode indication information of the responder is used to indicate that the training mode of the responder is a training mode with both ends oriented, the responder's Sector scan parameters also include: Indication information of the sector scan mode of the responder; Wherein, the indication information of the responder's sector scanning mode is used to indicate the corresponding relationship between the sending times of the initiator in each sector and the number of sector scanning performed by the responding party. 18. The device according to claim 16, wherein the sector scan parameters of the responder further include at least one of the following information: The frame type of the second frame, the indication information indicating whether the responder requests the transmit sector scan, the indication information whether the responder requests the receive sector scan, the feedback type indication information, the second frame Whether to carry the indication information of the training sequence of the receiving end and the length indication information of the training sequence; Wherein, the indication information of the feedback type is used to indicate whether the transmission mode of the feedback information between the initiator and the responder adopts a tunnel transparent transmission mechanism OCT. 19. A sector scanning device on the responder side, comprising: A low frequency module, configured to receive a first frame from the initiator on a first channel, where the first frame includes: sector scan parameters of the initiator; send the first frame to the initiator on the first channel Two frames, the second frame includes: sector scan parameters of the responder; A processing module, configured to control the high-frequency module to perform sector scanning on a second channel according to the sector scanning parameters of the initiator; the frequency of the second channel is higher than the frequency of the first channel; The sector scanning parameters of the initiator include the training mode indication information of the initiator, and the training mode indication information of the initiator is used to indicate whether the training mode of the initiator is a one-end oriented training mode or a two-end oriented training mode. All directional training mode; When the training mode indication information of the initiator is used to indicate that the training mode of the initiator is a training mode directed at both ends, the sector scan parameters of the initiator further include: Indication information of the sector scan mode of the initiator; Wherein, the indication information of the initiator's sector scan mode is used to indicate the corresponding relationship between the number of times the responder sends in each sector and the number of times the initiator performs sector scans. 20. The device according to claim 19, wherein the sector scan parameters of the initiator further include at least one of the following information: The start time for the initiator to scan the sector, the number of sectors of the initiator, the number of antennas of the initiator, the indication information of the antenna reciprocity of the initiator, the number of antennas of the initiator The indication information of the pattern mutuality, the length of the training frame for the sector scanning by the initiator; Wherein, the number of sectors of the initiator is the number of sectors used by the initiator for sector scanning; The number of antennas of the initiator is the number of antennas used by the initiator for sector scanning; The indication information of the antenna reciprocity of the initiator is used to indicate: whether the optimal transmitting antenna of the initiator is the optimal receiving antenna of the initiator; The indication information of the antenna mode mutual dissimilarity of the initiator is used to indicate whether the antenna weight corresponding to the transmitting antenna mode of the initiator is the antenna weight corresponding to the receiving antenna mode of the initiator. 21. The device according to claim 20, wherein the sector scanning parameters of the initiator further include at least one of the following information: The frame type of the first frame, the indication information indicating whether the initiator requests the transmit sector scan, the indication information whether the initiator requests the receive sector scan, the feedback type indication information, the first frame Whether to carry the indication information of the training sequence of the receiving end and the length indication information of the training sequence; Wherein, the indication information of the feedback type is used to indicate whether the transmission mode of the feedback information between the initiator and the responder adopts a tunnel transparent transmission mechanism OCT. 22. The device according to claim 19, wherein the sector scan parameters of the responder include at least one of the following information: The starting time of sector scanning by the responding party, the number of sectors of the responding party, the number of antennas of the responding party, the indication information of the antenna reciprocity of the responding party, the antenna number of the responding party The indication information of mode mutuality, the length of the training frame for the responder to perform sector scanning, and the indication information of the training mode of the responder; Wherein, the number of sectors of the responder is the number of sectors used by the responder for sector scanning; The number of antennas of the responder is the number of antennas used by the responder for sector scanning; The indication information of the antenna reciprocity of the responding party is used to indicate: whether the optimal transmitting antenna of the responding party is the optimal receiving antenna of the responding party; The indication information of the antenna mode reciprocity of the responder is used to indicate: whether the antenna weight corresponding to the transmit antenna mode of the responder is the antenna weight corresponding to the receive antenna mode of the responder; The training mode indication information of the responder is used to indicate whether the training mode of the responder is a one-end oriented training mode or both ends oriented training mode. 23. The device according to claim 22, wherein when the training mode indication information of the responder is used to indicate that the training mode of the responder is a training mode with both ends oriented, the responder's Sector scan parameters also include: Indication information of the sector scan mode of the responder; Wherein, the indication information of the responder's sector scanning mode is used to indicate the corresponding relationship between the sending times of the initiator in each sector and the number of sector scanning performed by the responding party. 24. The device according to claim 22 or 23, wherein the sector scan parameters of the responder further include at least one of the following information: The frame type of the second frame, the indication information indicating whether the responder requests the transmit sector scan, the indication information whether the responder requests the receive sector scan, the feedback type indication information, the second frame Whether to carry the indication information of the training sequence of the receiving end and the length indication information of the training sequence; Wherein, the indication information of the feedback type is used to indicate whether the transmission mode of the feedback information between the initiator and the responder adopts a tunnel transparent transmission mechanism OCT.

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