WO2016141585A1

WO2016141585A1 - Antenna mode selection method, apparatus and system

Info

Publication number: WO2016141585A1
Application number: PCT/CN2015/074094
Authority: WO
Inventors: 吴涛
Original assignee: 华为技术有限公司
Priority date: 2015-03-12
Filing date: 2015-03-12
Publication date: 2016-09-15
Also published as: CN107408969A; CN107408969B

Abstract

An antenna mode selection method, apparatus and system, which relate to the field of communications, are used for antenna mode selection and can reduce the time of the antenna mode selection, so as to increase the speed of the antenna mode selection and improve the efficiency. The method comprises: a sending apparatus which sends N pilot frequency signals and N pieces of corresponding antenna index information to a receiving apparatus in a subframe (201); the sending apparatus receives antenna mode indication information sent by the receiving apparatus (202); and the sending apparatus takes a transmission mode corresponding to the antenna index information contained in the antenna mode indication information as an optimal transmission mode of the receiving apparatus (203).

Description

Antenna mode selection method, device and system

Technical field

The present invention relates to the field of communications, and in particular, to an antenna mode selection method, apparatus, and system.

Background technique

The Institute of Electrical and Electronics Engineers (IEEE) 802.11 Wireless Local Area Networks (WLAN) standard organization plans to develop the next generation 60 GHz based on the current 802.11ad standard. Ghiz) Evolution Technology (English: Next Generation 60GHz, referred to as NG60) standard. The peak rate in the existing 802.11ad is 7 Gbps (gigabits per second), while the NG60 requires its peak rate to be increased to more than 20 Gbps. In order to achieve this goal, the most likely solution is to introduce multi-antenna technology into the current 802.11ad system.

In the current 802.11ad, the receiving end and the transmitting end have only one transmitting antenna and receiving antenna for transmitting and receiving wireless signals, and the transmitting antenna and the receiving antenna correspond to multiple antenna modes (ie, beam mode, one for each beam mode). Directional beam), selecting different beam modes for transmitting and receiving wireless signals, will result in different signal-to-interference ratios of the transmitting and receiving wireless links. Therefore, the receiving end and the transmitting end first need to perform beam pairing before transmitting and receiving wireless signals (ie, The choice of the optimal antenna mode). Taking the transmitting end as an example, a specific beam pairing process: the transmitting end sends a sector scanning frame including a pilot signal to the receiving end in each beam mode through the above-mentioned transmitting antenna, and the receiving end receives each beam mode corresponding to each After the sector scans the frame, the channel estimation is performed according to the pilot signal in each sector scan frame, and then the identifier corresponding to the beam mode with the best signal quality is determined according to the result of the channel estimation, and then the identifier corresponding to the beam pattern is determined. Send to the receiving end.

However, the inventors have found that the number of antennas in the transmitting end and the receiving end is significantly increased after the introduction of the multi-antenna technology in the current 802.11ad, and each of the transmitting end is selected when the appropriate antenna mode is selected for the transmitting end and the receiving end. Transmitting antennas need to be separately The beam mode sends a sector scan frame including a pilot signal to the receiving end. When the number of antennas increases, the total number of antenna patterns corresponding to the antenna increases, so that the sector scan frame to be transmitted by the transmitting antenna of the transmitting end increases correspondingly. The time required to transmit a sector scan frame is increased, resulting in a significant increase in the time overhead required for antenna mode selection.

Therefore, after the introduction of the multi-antenna technology in 802.11ad, how to reduce the number of sector scan frames in the antenna mode selection process, thereby reducing the antenna mode selection time, and thus speeding up the antenna mode selection is a problem that the industry is expected to solve.

Summary of the invention

Embodiments of the present invention provide an antenna mode selection method, apparatus, and system, which can reduce the time of antenna mode selection, thereby speeding up antenna mode selection and improving efficiency.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In a first aspect, a transmitting apparatus is provided, the transmitting apparatus being applied to a network system supporting a next-generation 60 GHz 802.11ad, the network system comprising a transmitting apparatus and a receiving apparatus, wherein the transmitting apparatus includes a processor and a plurality of transmitting antennas And at least one receiving antenna, each of the transmitting antennas corresponding to at least one transmitting mode, wherein:

The processor is configured to send, by using the transmit antenna, N pilot signals and corresponding N sets of antenna index information to a receiving device in one subframe, where each pilot signal corresponds to one transmission mode; The antenna index information includes a beam identifier and an antenna identifier;

The processor is further configured to receive, by using the receiving antenna, antenna mode indication information that is sent by the receiving device, where the antenna mode indication information includes a most selected by the receiving device according to the N pilot signals. Antenna index information corresponding to the optimal transmission mode;

The processor is further configured to use, as an optimal transmission mode of the receiving device, a transmission mode corresponding to antenna index information included in the antenna mode indication information.

In a first possible implementation manner of the first aspect, each of the transmitting antennas corresponds to one antenna identifier, and each of the transmitting modes corresponds to one beam identifier; the subframe includes a sector scan frame or a beacon frame; a pilot signal domain and a data domain, the pilot signal The number field includes the N pilot signals, and the data field includes the N sets of antenna index information.

According to a first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the processor sends, by using the transmit antenna, N pilot signals to a receiving device in one subframe. And the corresponding N sets of antenna index information are used to: simultaneously transmit, by the transmitting antenna, N pilot signals corresponding to the N types of transmission modes in a pilot signal domain of one subframe; The N sets of antenna index information corresponding to the N types of transmission modes are simultaneously transmitted in the data domain of the subframe.

According to a first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the processor sends, by using the transmit antenna, N pilot signals to a receiving device in one subframe. And the corresponding N sets of antenna index information are specifically used before:

And acquiring a sector scan frame corresponding to the N modes of the transmit antennas, where the sector scan frame corresponding to each of the transmit modes includes a data field, where the data field includes an antenna index corresponding to the transmit mode information;

Aligning the data fields in each of the sector scan frames to obtain a subframe including N sets of antenna index information; or acquiring antenna index information in a data domain of each of the sector scan frames, and Having cascaded the obtained N sets of antenna index information to obtain a subframe including the N sets of antenna index information;

Further, when the processor sends the N pilot signals and the corresponding N sets of antenna index information to the receiving device in one subframe by using the transmitting antenna, the processor is specifically configured to: The N pilot signals corresponding to the N transmission modes are simultaneously transmitted in the pilot signal domain of the subframe of the N sets of antenna index information.

In a second aspect, a receiving apparatus is provided, the receiving apparatus being applied to a network system supporting a next-generation 60 GHz 802.11ad, the network system comprising a transmitting apparatus and a receiving apparatus, wherein the receiving apparatus includes a processor and a plurality of transmitting antennas And at least one receiving antenna, each of the transmitting antennas corresponding to at least one transmitting mode, wherein:

The processor is configured to receive, by the receiving antenna, N pilot signals that are sent by the sending device in one subframe and corresponding N sets of antenna index information; wherein each guide The frequency signal corresponds to a transmission mode; the antenna index information includes a beam identifier and an antenna identifier;

The processor is further configured to determine antenna index information corresponding to the optimal transmit antenna based on the N pilot signals received by the receiving antenna;

The processor is further configured to send antenna mode indication information including antenna index information corresponding to the optimal transmit antenna to the sending apparatus by using the transmit antenna, so that the sending apparatus sends the antenna mode indication information The transmission mode corresponding to the included antenna index information is used as an optimal transmission mode of the receiving device.

In a first implementation manner of the second aspect, each of the transmit antennas corresponds to one antenna identifier, and the subframe includes a sector scan frame or a beacon frame; the subframe includes a pilot signal domain and a data domain, The pilot signal domain includes the N pilot signals, and the data domain includes the N sets of antenna index information.

In a second possible implementation manner of the second aspect, the determining, by using the N pilot signals received by the receiving antenna, the antenna index information corresponding to the optimal transmit antenna is specifically used to:

Performing channel estimation on the received N pilot signals to obtain channel estimation results of channels corresponding to the N pilot signals;

Calculating a signal to interference ratio of the corresponding channel of each pilot signal according to a channel estimation result of the corresponding channel of each pilot signal;

And selecting, according to a signal to interference ratio of the corresponding channel of each pilot signal, antenna index information corresponding to an optimal transmission mode.

In a third aspect, an antenna mode selection method is provided, which is applied to a network system supporting a next-generation 60 GHz 802.11ad, where the network system includes a transmitting device and a receiving device, where the transmitting device includes a processor, a plurality of transmitting antennas, and at least a receiving antenna, each transmitting antenna corresponding to at least one transmitting mode, the method comprising:

The transmitting device sends N pilot signals and corresponding N sets of antenna index information to the receiving device in one subframe; wherein each pilot signal corresponds to one transmission mode; the antenna index information includes a beam identifier and an antenna identifier;

Receiving antenna mode indication information sent by the receiving device; wherein the antenna The mode indication information includes antenna index information corresponding to an optimal transmission mode selected by the receiving apparatus according to the N pilot signals;

The transmission mode corresponding to the antenna index information included in the antenna mode indication information is used as an optimal transmission mode of the receiving apparatus.

In a first possible implementation manner of the third aspect, each of the transmitting antennas corresponds to one antenna identifier, and each of the transmitting modes corresponds to one beam identifier; the subframe includes a sector scan frame or a beacon frame; A pilot signal domain and a data domain are included, the pilot signal domain includes the N pilot signals, and the data domain includes the N sets of antenna index information.

According to a first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the sending device sends the N pilot signals and the corresponding N sets of antennas to the receiving device in one subframe The index information specifically includes:

Transmitting N pilot signals corresponding to the N transmission modes simultaneously in a pilot signal domain of one subframe; and simultaneously transmitting N sets of antenna index information corresponding to the N transmission modes in a data domain of the subframe .

According to a first possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the sending device sends the N pilot signals and the corresponding N sets of antennas to the receiving device in one subframe Before indexing information, it also includes:

Further, the sending, by the sending device, the N pilot signals and the corresponding N sets of antenna index information to the receiving device in one subframe specifically include:

And transmitting N pilot signals corresponding to the N types of transmission modes simultaneously in a pilot signal field of the subframe including the N sets of antenna index information.

A fourth aspect provides an antenna mode selection method, which is applied to a network system supporting a next-generation 60 GHz 802.11ad, where the network system includes a transmitting device and a receiving device, where the receiving device includes a processor, a plurality of transmitting antennas, and at least a receiving antenna, each transmitting antenna corresponding to at least one transmitting mode, the method comprising:

The receiving device receives N pilot signals sent by the transmitting device in one subframe and corresponding N sets of antenna index information; wherein each pilot signal corresponds to one transmission mode; the antenna index information includes a beam identifier and an antenna identifier;

Determining antenna index information corresponding to an optimal transmission mode based on the N pilot signals;

Transmitting, to the transmitting device, antenna mode indication information including antenna index information corresponding to the optimal transmit antenna, so that the transmitting device uses a transmission mode corresponding to antenna index information included in the antenna mode indication information as the receiving The optimal emission mode of the device.

In a first possible implementation manner of the fourth aspect, each of the transmit antennas corresponds to one antenna identifier; the subframe includes a sector scan frame or a beacon frame; and the subframe includes a pilot signal domain and a data domain, The pilot signal domain includes the N pilot signals, and the data domain includes the N sets of antenna index information.

In a second possible implementation manner of the fourth aspect, the determining, by using the N pilot signals, the antenna index information corresponding to the optimal transmission mode includes:

In a fifth aspect, an antenna mode selection system is provided, the system comprising: a transmitting device and a receiving device, wherein the transmitting device is any one of the above transmitting devices, and the receiving device is any one of the receiving devices.

The antenna mode selection method, device and system provided by the embodiments of the present invention are supported In the next-generation 60 GHz 802.11ad network system, the transmitting device transmits N pilot signals and corresponding N sets of antenna index information to the receiving device in one subframe, and then the transmitting device receives the antenna mode indication information sent by the receiving device, and The transmission mode corresponding to the antenna index information included in the antenna mode indication information is used as the optimal transmission mode of the receiving device. Compared with the prior art, in the antenna mode selection process, sector scan frames need to be sent one by one for all possible situations, and channel estimation and feedback are performed separately. The solution provided by the present invention reduces the number of sector scan frames to be transmitted in the antenna mode selection process by transmitting N pilot signals and corresponding N sets of antenna index information to the transmitting device in one subframe, thereby shortening The time required to transmit the sector scan frame shortens the selection time of the antenna mode, speeds up the selection of the antenna mode, and improves the efficiency.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a drawing of some embodiments of the invention.

1 is a schematic structural diagram of an antenna mode selection system according to an embodiment of the present invention;

2 is a schematic structural diagram of a transmitting apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a frame of a subframe according to an embodiment of the present invention;

4 is a schematic structural diagram of a frame of another seed frame according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a frame of another seed frame according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a receiving apparatus according to an embodiment of the present invention;

FIG. 7 is a schematic flowchart diagram of an antenna mode selection method according to an embodiment of the present invention;

FIG. 8 is a flowchart of another antenna mode selection method according to an embodiment of the present invention; FIG.

FIG. 9 is a schematic flowchart diagram of still another antenna mode selection method according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a frame structure of a sector scan frame according to an embodiment of the present invention; Figure

FIG. 11 is a schematic diagram of a frame structure of another sector scan frame according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of a frame structure of another sector scan frame according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments.

With the transition of digital multimedia consumer electronics to High Definition (HD), home entertainment platforms can provide more and more functions and applications. Existing wireless LAN (English: Wireless Local Area Networks, WLAN for short) Wireless communication technology can not meet the bandwidth requirements of applications such as multi-channel high-definition video streaming wireless transmission, and the next generation evolution technology of 60GHz (Gigahertz) 802.11ad WLAN is the next generation 60GHz evolution technology (English: Next Generation 60GHz, Referred to as NG60), its maximum data transmission rate can reach 20Gbit/s (gigabits per second), and the effective coverage in the 60GHz frequency band can reach more than 10 meters. Therefore, in an ideal state, the NG60 can provide a sufficiently wide transmission channel for various high-bandwidth service applications such as high-definition video and file synchronization.

In the current 802.11ad, there is only one transmitting antenna and receiving antenna at the receiving end and the transmitting end. Exemplarily, the process of beam pairing is specifically described by taking the transmitting end as the router and the receiving end as the user terminal as an example. If the transmitting antenna of the router corresponds to three transmission modes, the beams in the three modes have three different The downtilt angle, each downtilt angle corresponds to a beam in one direction, the receiving antenna of the router corresponds to one receiving mode, the transmitting antenna of the user terminal corresponds to one transmitting mode, and the receiving antenna of the user terminal corresponds to one receiving mode, then the router is performing When the beam is paired, three different scanning frames of different downtilt angles are transmitted through the above-mentioned transmitting antenna, and after receiving the sector scanning frames corresponding to the three beam modes, the user terminal scans the pilots in the frame according to each sector. The signal is channel estimated, and the beam mode with the best signal quality is determined according to the result of the channel estimation. Corresponding identifiers, because the user terminal has only one transmission mode, the user terminal sends the identifier corresponding to the beam mode with the best signal quality to the router through the transmission mode. Of course, the above description is only an exemplary description. In an actual application scenario, a transmitting antenna of a transmitting end corresponds to multiple transmitting modes, and a receiving antenna corresponds to multiple receiving modes. The transmitting antenna of the receiving end corresponds to multiple transmitting modes. The receiving antenna corresponds to multiple receiving modes.

Based on the above, when the multi-antenna technology is introduced in the current 802.11ad, although the transmission rate of the station can be greatly improved, the number of sector scan frames that need to be transmitted during the antenna mode selection process is introduced due to the introduction of the multi-antenna technology. There are many, and each frame is sent for a certain period of time, which results in a long time required to complete all possible situations, which results in a longer antenna mode selection time and low efficiency. For example, on the basis of the foregoing scenario, when there are three transmit antennas in the router, and each of the transmit antennas corresponds to three transmit modes, the transmit end needs to send 9 sector scan frames to determine the optimal antenna mode.

Based on the above problems, embodiments of the present invention provide an antenna mode selection method, apparatus, and system.

As shown in FIG. 1, an embodiment of the present invention provides an antenna mode selection system 1 which is a network system supporting a next generation 60 GHz 802.11ad, and the system 1 includes a transmitting device 11 and a receiving device 12. The transmitting device 11 includes a plurality of transmitting antennas, at least one receiving antenna, and a processor. The sending device may be a wireless access point (English: Wireless Access Point, AP for short) or a router. The receiving device 12 includes a plurality of transmitting antennas, at least one receiving antenna, and a processor. The receiving device is a terminal device that can perform data interaction through a wireless local area network (WLAN), such as a smart phone or a network television. Tablet PC, laptop computer, Ultra-mobile Personal Computer (UMPC), netbook, Personal Digital Assistant (PDA). Each of the foregoing transmit antennas corresponds to at least one transmit mode, and each receive antenna corresponds to at least one receive mode. Certainly, the foregoing sending device and the receiving device are interchangeable, and the AP and the user terminal are taken as an example for description, when the AP is sent to the user terminal. When transmitting data, the AP is a transmitting device, and the user terminal is a receiving device; and when the user terminal transmits data to the AP, the user terminal is a transmitting device, and the AP is a receiving device.

It should be noted that, when determining the optimal transmission mode for the transmitting device, the basic processing flow is the same regardless of the receiving antenna of the receiving device, and therefore, in the embodiment of the present invention, only the In the antenna mode selection system, the transmitting device has N transmitting antennas, and each transmitting antenna corresponds to one transmitting mode, and the receiving device has one receiving antenna. The receiving antenna corresponds to a receiving mode as an example, and is not limited thereto.

Specifically, the transmitting device 11 is configured to send N pilot signals and corresponding N sets of antenna index information to the receiving device 12 in one subframe.

Each of the transmitting antennas of the transmitting device corresponds to at least one transmitting mode, and each of the pilot signals corresponds to one transmitting mode. The antenna index information includes a beam identifier and an antenna identifier, and each of the transmitting antennas corresponds to one antenna identifier, and each of the transmitting antennas corresponds to one antenna identifier. The transmission mode corresponds to a beam identifier, and the foregoing subframe includes a sector scan frame or a beacon frame; the subframe includes a pilot signal domain and a data domain, the pilot signal domain includes N pilot signals, and the data domain includes N antennas. Index information.

When transmitting the N pilot signals and the corresponding N sets of antenna index information to the receiving device, the transmitting device may cascade the data in the data field or the data domain of the sector scanning frame to form one type of N-type transmission. The sub-frames of the N sets of antenna index information corresponding to the mode are implemented, and N pilot signals corresponding to the N types of transmission modes are simultaneously transmitted in the pilot signal domain of the subframe; or may be implemented in a subframe. The N pilot signals corresponding to the N transmission modes are simultaneously transmitted in the frequency signal domain, and the N sets of antenna index information corresponding to the N transmission modes are simultaneously transmitted in the data domain of the subframe.

The receiving device 12 is configured to determine, according to the received N pilot signals, antenna index information corresponding to an optimal transmission mode, and send transmit antenna mode indication information including antenna index information corresponding to the optimal transmission mode to the transmitting device. 11.

Each pilot signal corresponds to a transmission mode, and the antenna index information includes a beam identifier and an antenna identifier.

The transmitting device 11 is further configured to: the day included in the received antenna mode indication information The transmission mode corresponding to the line index information serves as an optimal transmission mode of the receiving device.

It should be noted that, when the transmitting device 11 transmits N pilot signals and corresponding N sets of antenna index information to the receiving device 12 in one subframe, the processor in the transmitting device 11 may select one of all the transmitting antennas. Root transmission; or, each of the transmitting antennas may separately transmit a subframe including respective corresponding transmission modes.

In the antenna mode selection system provided by the embodiment of the present invention, in a network system supporting the next generation 60 GHz 802.11ad, the transmitting device sends N pilot signals and corresponding N sets of antenna index information to the receiving device in one subframe, and the receiving device receives After transmitting the N pilot signals and the corresponding N sets of antenna index information in one subframe, the transmitting device transmits the antenna mode indication information to the transmitting device based on the N pilot signals, and the transmitting device receives the antenna mode indication information sent by the receiving device. The transmission mode corresponding to the antenna index information included in the antenna mode indication information is used as an optimal transmission mode of the receiving device. Compared with the prior art, in the antenna mode selection process, sector scan frames need to be sent one by one for all possible situations, and channel estimation and feedback are performed separately. The solution provided by the present invention reduces the number of sector scan frames to be transmitted in the antenna mode selection process by transmitting N pilot signals and corresponding N sets of antenna index information to the transmitting device in one subframe, thereby shortening The time required to transmit the sector scan frame shortens the selection time of the antenna mode, speeds up the selection of the antenna mode, and improves the efficiency.

FIG. 2 is a schematic diagram of a sending apparatus according to an embodiment of the present invention, which can be applied to a network system supporting the next generation 60 GHz 802.11ad as shown in FIG. 1. The transmitting device 11 specifically includes: a plurality of transmitting antennas 111, at least one receiving antenna 112, and a processor 113. Each transmitting antenna corresponds to at least one transmitting mode, where:

The processor 113 is configured to send, by using the transmitting antenna 111, N pilot signals and corresponding N antenna index information to the receiving device in one subframe.

Each of the pilot signals corresponds to a transmission mode, and the antenna index information includes an antenna identifier (DMG Antenna ID) and a beam identifier (Sector ID), and each of the transmit antennas corresponds to one antenna identifier, and each of the transmit modes corresponds to one beam. The foregoing subframe includes a sector scan frame or a beacon frame; the subframe includes a pilot signal domain and a data domain, the pilot signal domain includes N pilot signals, and the data domain includes N sets of antenna index information. Show For example, if a transmitting antenna has two transmission modes, the antenna identifiers are respectively a1, and the transmission modes are 1, 2, respectively, the antenna index information of the antenna is a1+1 and a1+2.

Specifically, the foregoing sector scan frame specifically includes: Frame Control, Duration, Receiver Physical Address (RA), Transmitter Physical Address (TA), Data Domain, Sector Scan Feedback, and Frame Check (FCS). The Frame Control contains the version number information of the protocol; the Duration includes the duration of the transmission frame; the RA contains the physical address of the receiving end; the TA contains the physical address of the transmitting end; the data field contains the antenna indication identifier; and the sector scan feedback The information including the sector scan feedback is included; the FCS includes a frame check sequence, and the receiving end determines whether the received frame is correct.

The data field includes: a sending indication identifier, a calculation number (CDOWN), antenna index information, and a total number of antenna index information (RXSS Length) for receiving. The sending indication identifier is 0 or 1, and is used to indicate whether the frame is sent by the sending device or the receiving device; CDOWN is used to indicate the number of sector scanning frames that need to be sent; each antenna index information corresponds to one antenna mode; RXSS Length indicates the total number of antenna index information for reception.

Specifically, the foregoing beacon frame includes: Frame Control, Duration, Basic Service Set Identifier (BSSID), Frame Entity (Body), and Frame Check (FCS). The Frame Control includes the version number information of the protocol; the Duration includes the duration of the transmission frame; the BSSID includes the physical address of the transmitting device; the Body is the data field of the beacon frame; and the FCS includes the frame check sequence for receiving The terminal judges whether the received frame is correct.

The frame entity of the above-mentioned beacon frame includes the number of antenna index information (Sector Number) and antenna index information. The above Sector Number represents the number of antenna index information in the frame entity.

It should be noted that the foregoing subframe further includes a short training field (English: Short Training Field, STF for short) and a pilot signal domain (ie, Channel Estimation (CE) domain), and the STF is used for The synchronization of the receiver, the CE domain is used for channel estimation.

The processor 113 is further configured to receive, by using the receiving antenna 112, antenna mode indication information that is sent by the receiving device.

The antenna mode indication information includes antenna index information corresponding to an optimal transmission mode selected by the receiving apparatus according to the N pilot signals.

The processor 113 is further configured to use a transmission mode corresponding to the antenna index information included in the antenna mode indication information as an optimal transmission mode of the receiving device.

The transmitting apparatus provided by the embodiment of the present invention is applied to a network system supporting a next-generation 60 GHz 802.11ad, and the transmitting apparatus transmits N pilot signals and corresponding N sets of antenna index information to a receiving apparatus in one subframe, and then transmits The device receives the antenna mode indication information sent by the receiving device, and uses a transmission mode corresponding to the antenna index information included in the antenna mode indication information as an optimal transmission mode of the receiving device. Compared with the prior art, in the antenna mode selection process, sector scan frames need to be sent one by one for all possible situations, and channel estimation and feedback are performed separately. The solution provided by the present invention reduces the number of sector scan frames to be transmitted in the antenna mode selection process by transmitting N pilot signals and corresponding N sets of antenna index information to the transmitting device in one subframe, thereby shortening The time required to transmit the sector scan frame shortens the selection time of the antenna mode, speeds up the selection of the antenna mode, and improves the efficiency.

Optionally, according to different manners of configuring a subframe sent by the sending device, the method may be implemented in two manners.

In a first implementation, the processor 113 is specifically configured to: when transmitting, by using the transmit antenna 111, N pilot signals and corresponding N sets of antenna index information to a receiving device in one subframe:

N pilot signals corresponding to N transmission modes are simultaneously transmitted in the pilot signal domain of one subframe by the transmitting antenna 111; N sets corresponding to N transmission modes are simultaneously transmitted through the transmitting antenna 111 in the data domain of the subframe Antenna index information.

Exemplarily, the transmitting antenna 111 first transmits the pilot signals (CE ₁ , CE ₂ , . . . , CE _N ) corresponding to the respective transmission modes in the CE domain of one subframe, and then the transmitting antenna 111 is in the sub-carrier. The data field of the frame simultaneously transmits antenna index information (M ₁ , M ₂ , ... M _N ) corresponding to each transmission mode, thereby constituting a subframe of the structure shown in FIG.

In a second implementation manner, the processor 113 is further configured to: before transmitting, by using the transmit antenna 111, N pilot signals and corresponding N sets of antenna index information to the receiving device in one subframe:

Obtaining a sector scan frame corresponding to each of the N transmission modes of the transmit antenna 111, where the sector scan frame corresponding to each transmit mode includes a data field, where the data field includes antenna index information corresponding to the transmit mode;

Cascading data fields in each sector scan frame to obtain a subframe including N sets of antenna index information; or acquiring antenna index information in a data domain of each sector scan frame, and acquiring the obtained The N sets of antenna index information are cascaded to obtain a subframe including N sets of antenna index information.

Further, when the processor 113 sends the N pilot signals and the corresponding N sets of antenna index information to the receiving device in one subframe through the transmitting antenna 111, the processor 113 is specifically configured to: include the N antennas through the transmitting antenna 111. N pilot signals corresponding to N transmission modes are simultaneously transmitted in the pilot signal domain of the subframe of the index information.

Exemplarily, the processor 113 acquires a sector scan frame corresponding to the transmission mode from each transmission mode, and then the processor 113 scans the data field in each sector (data field 1, data field 2, . ....., data field N) is concatenated in the data field of one subframe, the data field of the subframe contains N data fields. The transmitting antenna 111 simultaneously transmits N pilot signals (CE ₁ , CE ₂ , . . . , CE _N ) corresponding to the N types of transmission modes in the CE domain of the subframe, thereby forming a substructure as shown in FIG. 4 . frame.

Alternatively, the processor 113 acquires a sector scan frame corresponding to the transmission mode from each of the transmission modes, and then the processor 113 acquires the data field included in each sector scan frame from the acquired sector scan frame. Antenna index information, and storing all antenna index information in a data domain of one subframe, so that the data domain of the subframe is expanded, so that the data domain of the subframe includes a common information and multiple antennas The index information (M ₁ , M ₂ , ... M _N ), the above-mentioned common information refers to other information than the antenna index information in the data domain of the subframe. The transmitting antenna 111 simultaneously transmits N pilot signals (CE ₁ , CE ₂ , . . . , CE _N ) corresponding to the N transmission modes in the CE domain of the subframe, thereby forming a substructure as shown in FIG. 5 . frame.

The division of the transmitting device in the embodiment of the present invention is an exemplary description. In practice, there may be multiple dividing methods to constitute the transmitting device of the embodiment of the present invention.

FIG. 6 is a receiving apparatus according to an embodiment of the present invention, which can be applied to a network system supporting the next generation 60 GHz 802.11ad as shown in FIG. 1. The receiving device 12 specifically includes: at least one receiving antenna 121, a plurality of transmitting antennas 122, and a processor 123, and each transmitting antenna corresponds to at least one transmitting mode, where:

The processor 123 is configured to receive, by the receiving antenna 121, N pilot signals sent by the transmitting device in one subframe and corresponding N sets of antenna index information.

Each pilot signal corresponds to a transmission mode, and the antenna index information includes a beam identifier and an antenna identifier, and each of the receiving antennas corresponds to one antenna identifier, and the foregoing subframe includes a sector scan frame or a beacon frame; The frame includes a pilot signal domain and a data domain, the pilot signal domain includes N pilot signals, and the data domain includes N sets of antenna index information.

The processor 123 is further configured to determine antenna index information corresponding to the optimal transmit antenna based on the N pilot signals received through the receiving antenna 121.

Optionally, when the processor 123 determines the antenna index information corresponding to the optimal transmit antenna based on the N pilot signals received by the receiving antenna 121, the processor 123 is specifically configured to:

Perform channel estimation on the received N pilot signals separately, and obtain channel estimation results of channels corresponding to N pilot signals; according to channels of corresponding channels of each pilot signal As a result of the estimation, the signal-to-interference ratio of the channel corresponding to each pilot signal is separately calculated; and the antenna index information corresponding to the optimal transmission mode is selected according to the calculated signal-to-interference ratio of the channel corresponding to each pilot signal.

Specifically, the processor 123 performs channel estimation according to the received pilot signal, and obtains channel state information (CSI) of the channel corresponding to each pilot signal. Then, the receiving device according to the received signal code power in the CSI corresponding to each pilot signal (English: Received Signal Code Power, RSCP for short), interference signal code power (English: Interference on Signal Code Power, ISCP for short) and spread spectrum The factor (English Spreading Factor, SF for short) is calculated by the formula SIR=(RSCP/ISCP)×SF to obtain the signal-to-interference ratio (SIR) of the corresponding channel of each pilot signal.

The processor 123 is further configured to send the antenna mode indication information corresponding to the optimal transmit antenna to the transmitting device by using the transmit antenna 122, so that the transmitting device uses the transmit mode corresponding to the antenna index information included in the antenna mode indication information as the most Excellent emission mode.

The receiving apparatus provided by the embodiment of the present invention is applied to a network system supporting a next-generation 60 GHz 802.11ad, where the receiving apparatus receives N pilot signals transmitted by a transmitting apparatus in one subframe and corresponding N sets of antenna index information, and then, The antenna mode indication information is transmitted to the transmitting device based on the received N pilot signals, so that the transmitting device uses the transmission mode corresponding to the antenna index information included in the antenna mode indication information as the optimal transmission mode of the receiving device. Compared with the prior art, in the antenna mode selection process, sector scan frames need to be sent one by one for all possible situations, and channel estimation and feedback are performed separately. The solution provided by the present invention reduces the number of sector scan frames to be transmitted in the antenna mode selection process by transmitting N pilot signals and corresponding N sets of antenna index information to the transmitting device in one subframe, thereby shortening The time required to transmit the sector scan frame shortens the selection time of the antenna mode, speeds up the selection of the antenna mode, and improves the efficiency.

The division of the receiving device in the embodiment of the present invention is an exemplary description. In practice, there may be multiple dividing methods to constitute the receiving device of the embodiment of the present invention.

An embodiment of the present invention provides an antenna mode selection method, which is applied to a network system supporting a next-generation 60 GHz 802.11ad as shown in FIG. 1. As shown in FIG. 7, the method specifically includes the following steps:

201. The transmitting device sends N pilot signals and corresponding N sets of antenna index information to the receiving device in one subframe.

Each of the transmitting antennas of the foregoing transmitting apparatus corresponds to at least one transmitting mode, and each pilot signal corresponds to one transmitting mode, and the antenna index information includes a beam identifier and an antenna identifier. Each of the transmission modes corresponds to a beam identifier, and the foregoing subframe includes a sector scan frame or a beacon frame; the subframe includes a pilot signal domain and a data domain, and the pilot signal domain includes N pilot signals, and the data domain includes N. Set of antenna index information.

Optionally, the step 201 may be implemented in the following two manners according to different configurations of the subframes sent by the sending device. In a first implementation manner, the transmitting device simultaneously transmits multiple pilot signals and antenna index information in the pilot signal domain and the data domain in the subframe respectively. In the second implementation manner, the subframe sent by the transmitting device It is formed by cascading data in N data fields or data fields.

Optionally, in the first implementation manner, step 201 specifically includes the following steps:

201a1: The transmitting device simultaneously transmits N pilot signals corresponding to N transmission modes in a pilot signal domain of one subframe.

201a2: The transmitting device simultaneously transmits N sets of antenna index information corresponding to N types of transmission modes in the data domain of the foregoing subframe.

Specifically, the transmitting device concurrently transmits N pilot signals simultaneously in the pilot signal domain position of one subframe, and concurrently transmits the antenna index information corresponding to the N pilot signals in the subframe data domain position, in the absence of the pair. In the case where the frame structure is changed, N pilot signals and their corresponding antenna index information are simultaneously transmitted in one subframe.

Optionally, in the second implementation manner, before step 201, the following steps are further included:

201b1. The transmitting device acquires a sector scan frame corresponding to each of the N types of transmission modes.

The sector scan frame corresponding to each of the foregoing transmission modes includes a data field, and the data field includes antenna index information corresponding to the foregoing transmission mode.

201b2. The transmitting device cascades the data fields in each sector scan frame to obtain a subframe that includes N sets of antenna index information.

Specifically, the sending device acquires a data field of each sector scan frame from the acquired sector scan frames corresponding to the N types of transmission modes, and concatenates the acquired data fields of each sector scan frame into one sub-domain. The data field of the frame.

or,

201b3. The sending device acquires antenna index information in a data field in each sector scan frame, and concatenates the obtained N sets of antenna index information to obtain a subframe that includes N sets of antenna index information.

Specifically, in order to further save the overhead of the common information in the data domain, the sending device obtains the data domain of each sector scan frame from the sector scan frames corresponding to the acquired N types of transmission modes, and further acquires each sector scan. Antenna index information contained in the data field of the frame. The transmitting device concatenates the acquired antenna index information in a data domain of one subframe, so that the data domain of the subframe is expanded, so that the data domain of the subframe includes a common information and multiple antenna indexes. information. The above public information refers to other information except the antenna index information in the data domain of the subframe.

Based on the above steps 201b1, 201b2 or 201b3, step 201 specifically includes the following steps:

201b3. The transmitting device simultaneously transmits N pilot signals corresponding to N types of transmission modes in a pilot signal domain of the subframe including the N sets of antenna index information.

202. The transmitting device receives antenna mode indication information sent by the receiving device.

Specifically, after receiving the antenna mode indication information sent by the receiving device, the transmitting device acquires antenna index information corresponding to the optimal transmission mode in the antenna mode indication information, and the sending device searches for the corresponding optimal transmission mode according to the antenna index information.

203. The transmitting apparatus uses, as an optimal transmission mode of the receiving apparatus, a transmission mode corresponding to the antenna index information included in the antenna mode indication information.

An antenna mode selection method provided by an embodiment of the present invention is applied to support a next generation In the 60 GHz 802.11ad network system, the transmitting device transmits N pilot signals and corresponding N sets of antenna index information to the receiving device in one subframe, and then the transmitting device receives the antenna mode indication information sent by the receiving device, and indicates the antenna mode. The transmission mode corresponding to the antenna index information included in the information serves as an optimal transmission mode of the receiving device. Compared with the prior art, in the antenna mode selection process, sector scan frames need to be sent one by one for all possible situations, and channel estimation and feedback are performed separately. The solution provided by the present invention reduces the number of sector scan frames to be transmitted in the antenna mode selection process by transmitting N pilot signals and corresponding N sets of antenna index information to the transmitting device in one subframe, thereby shortening The time required to transmit the sector scan frame shortens the selection time of the antenna mode, speeds up the selection of the antenna mode, and improves the efficiency.

The embodiment of the present invention provides an antenna mode selection method, which can be applied to a network system supporting the next generation 60 GHz 802.11ad as shown in FIG. 1. As shown in FIG. 8, the method specifically includes the following steps:

301. The receiving device receives N pilot signals sent by the transmitting device in one subframe and corresponding N sets of antenna index information.

Each pilot signal corresponds to one transmission mode, and the antenna index information includes a beam identifier and an antenna identifier.

302. The receiving device determines, according to the N pilot signals, antenna index information corresponding to an optimal transmission mode.

Optionally, step 302 specifically includes the following steps:

302a. The receiving device performs channel estimation on each of the received N pilot signals, and obtains channel estimation results of the corresponding channels of the N pilot signals.

Specifically, the receiving device performs channel estimation according to the received pilot signal, and obtains channel state information of a channel corresponding to each pilot signal.

302b. The receiving device calculates a signal to interference ratio of the corresponding channel of each pilot signal according to a channel estimation result of the corresponding channel of each pilot signal.

Specifically, the receiving device calculates a signal to interference ratio of the corresponding channel of each pilot signal by using a formula SIR=(RSCP/ISCP)×SF according to RSCP), ISCP) and SF in the CSI corresponding to each pilot signal.

302c. The receiving device selects antenna index information corresponding to the optimal transmission mode according to a signal to interference ratio of the corresponding channel of each pilot signal.

Specifically, the receiving device selects antenna index information corresponding to the signal-to-interference ratio with the largest value from the signal-to-interference ratio of the channel corresponding to each pilot signal.

303. The receiving device sends the antenna mode indication information that includes the antenna index information corresponding to the optimal transmit antenna to the sending device, so that the sending device uses the transmit mode corresponding to the antenna index information included in the antenna mode indication information as the optimal transmit mode of the receiving device. .

Optionally, after step 303, the method further includes the following steps:

304. The receiving device combines the channel estimation results corresponding to the N pilot signals to obtain a channel domain corresponding channel estimation result, thereby further demodulating the data domain.

The above channel estimation result may be a channel impulse response.

Specifically, the transmitting device passes the formula

The channel impulse responses corresponding to the N pilot signals are combined to obtain a channel impulse response of the data domain. Where h is the channel impulse response of the data domain, N is the number of channel impulse responses between the transmitting device and the receiving device, h _n is the value of the nth channel impulse response, δ represents the impulse response, and t _n is the first The time corresponding to the n impact responses.

An antenna mode selection method provided by an embodiment of the present invention is applied to a network system supporting a next-generation 60 GHz 802.11ad, and a receiving apparatus receives N pilot signals transmitted by a transmitting apparatus in one subframe and corresponding N sets of antenna index information, and then And transmitting the antenna mode indication information to the transmitting device based on the received N pilot signals, so that the transmitting device uses the transmission mode corresponding to the antenna index information included in the antenna mode indication information as the optimal transmission mode of the receiving device. Compared with the prior art, in the antenna mode selection process, sector scan frames need to be sent one by one for all possible situations, and channel estimation and feedback are performed separately. The solution provided by the present invention reduces the number of sector scan frames to be transmitted in the antenna mode selection process by transmitting N pilot signals and corresponding N sets of antenna index information to the transmitting device in one subframe, thereby shortening The time required to send a sector scan frame, which shortens the time for antenna mode selection and speeds up antenna mode selection. The speed of choice increases efficiency.

An exemplary antenna mode selection method provided by the present invention will be described below in a specific scenario. For the description of the technical terms, concepts, and the like related to the above embodiments in the following embodiments, reference may be made to the above embodiments.

Specifically, it is assumed that the transmitting device includes three transmitting antennas, and each transmitting antenna corresponds to one transmitting mode, and the pilot signals and antenna index information corresponding to the three transmitting modes are CE ₁ , CE ₂ , CE _{3 ,} and M ₁ , respectively. M ₂ , M ₃ ; The receiving device includes one receiving antenna, and the receiving antenna corresponds to one receiving mode.

Based on the above, the subframe in this embodiment is described by taking a sector scan frame as an example. As shown in FIG. 9 , the antenna mode selection method provided by the embodiment of the present invention is specifically as follows:

A1. The transmitting device transmits three pilot signals CE ₁ , CE ₂ , CE ₃ and corresponding three sets of antenna index information M ₁ , M ₂ , M ₃ to the receiving device in one sector scan frame.

Specifically, the configuration of the sector scan frame transmitted by the transmitting device is different, and can be implemented in two ways.

In a first implementation manner, the three transmitting antennas of the transmitting device simultaneously transmit CE ₁ , CE _{2 ,} and CE ₃ corresponding to respective transmission modes in a pilot signal domain (ie, a CE domain) of one sector scanning frame, and then, The three transmitting antennas simultaneously transmit the antenna index information M ₁ , M ₂ and M ₃ corresponding to the respective transmission modes in the data field of the sector scanning frame, thereby constituting a sector scanning frame of the structure shown in FIG.

In a second implementation manner, the transmitting device separately acquires sector scan frames in the three transmission mode corresponding channels, and obtains three data domains obtained from the above-mentioned sector scan frame: data domain 1, data domain 2, Data field 3 is concatenated in the data field of one sector scan frame. Finally, the transmitting device simultaneously transmits the pilot signals CE ₁ , CE ₂ and CE ₃ corresponding to the three transmission modes in the CE domain of the sector scan frame, thereby constituting a sector scan frame of the structure shown in FIG.

Alternatively, the transmitting device respectively acquires sector scanning frames in the corresponding channels of the three transmission modes, and acquires data fields corresponding to each sector scanning frame from the sector scanning frames: data domain 1, data domain 2, and data domain. 3, the transmission device respectively acquire the antenna index information data M 3 domains _1, M ₂ and M _3, and the three concatenation antenna index information in the data field of a sector-sweep frames, and finally, the transmission means CE domain of the sector-sweep frames transmitted simultaneously three kinds of transmission mode corresponding to the pilot signal CE _1, CE ₂ and CE _3, thereby constituting a frame structure as shown in FIG sector-sweep 12.

It should be noted that the above description is merely an exemplary description. In an actual implementation process, it is not limited to a sector scan frame, and may be a beacon frame or other subframes.

A2: The receiving device performs channel estimation on each of the received three pilot signals to obtain a channel impulse response of the channel corresponding to the three pilot signals.

A3. The receiving device calculates a signal to interference ratio of the corresponding channel of each pilot signal according to a channel impulse response of the corresponding channel of each pilot signal.

Specifically, the receiving device calculates respective signal-to-interference ratios SIR1, SIR2, and SIR3 according to RSCP and ISCP obtained in the channel impulse response of the corresponding channel of the three pilot signals by using the formula SIR=(RSCP/ISCP)×SF.

A4. The receiving device selects antenna index information corresponding to the optimal transmission mode according to the signal to interference ratio of the corresponding channel of each pilot signal.

Specifically, the ratio SIR1 receiving means, and of SIR2 SIR3 SIR1 selected from the best three letter dryness SIR1 and find the corresponding antenna index information M _1.

a5, the receiving apparatus transmits a transmission mode corresponding to the optimum antenna index information M ₁ to the antenna pattern instruction information transmitting apparatus.

A6. The transmitting device receives the antenna mode indication information sent by the receiving device.

a7, the antenna transmission apparatus antenna index information indicating the mode M ₁ corresponding to the transmission mode information included in the transmission mode as the optimal receiving apparatus.

a8, transmitting means for transmitting via the antenna sector-sweep frame index information M ₁ corresponding to the transmission mode.

A9. The receiving device combines the three transmission mode corresponding channels into channels corresponding to the optimal transmission mode, thereby further demodulating data in the data domain of the sector scanning frame.

An antenna mode selection method provided by an embodiment of the present invention is applied to a network system supporting a next-generation 60 GHz 802.11ad, and a transmitting apparatus transmits three pilot signals CE ₁ , CE ₂ , and CE ₃ to a receiving apparatus in one sector scan frame. Corresponding three sets of antenna index information M ₁ , M ₂ , M ₃ , the receiving device performs channel estimation on each of the received three pilot signals, and obtains channel impulse response of the channel corresponding to the three pilot signals, and according to each The pilot signal corresponds to the channel impulse response of the channel, and respectively calculates the signal to interference ratio of the channel corresponding to each pilot signal, and the receiving device selects the antenna index information corresponding to the optimal transmission mode according to the signal to interference ratio of the corresponding channel of each pilot signal. And transmitting the antenna mode indication information including the antenna index information M ₁ corresponding to the optimal transmission mode to the transmitting device, and the transmitting device uses the transmission mode corresponding to the antenna index information M _{1 included} in the antenna mode indication information as the optimal transmission of the receiving device. mode. Compared with the prior art, in the antenna mode selection process, sector scan frames need to be sent one by one for all possible situations, and channel estimation and feedback are performed separately. The solution provided by the present invention reduces the number of sector scan frames to be transmitted in the antenna mode selection process by transmitting N pilot signals and corresponding N sets of antenna index information to the transmitting device in one subframe, thereby shortening The time required to transmit the sector scan frame shortens the selection time of the antenna mode, speeds up the selection of the antenna mode, and improves the efficiency.

It will be clearly understood by those skilled in the art that for the convenience and brevity of the description, only the division of each functional module described above is exemplified. In practical applications, the above function assignment can be completed by different functional modules as needed. The internal structure of the device is divided into different functional modules to perform all or part of the functions described above. For the specific working process of the foregoing system and module, refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed apparatus, systems, and methods may be implemented in other ways. For example, the system embodiment described above is merely illustrative. For example, the division of the module is only a logical function division. In actual implementation, there may be another division manner, for example, multiple modules or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interface, indirect coupling or communication connection of the module, and may be in electrical, mechanical or other form.

In addition, each functional module in each embodiment of the present application can be integrated in one place. In the management module, each module may exist physically separately, or two or more modules may be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. The above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto.

Claims

A transmitting device is applied to a network system supporting a next-generation 60 GHz 802.11ad, the network system including a transmitting device and a receiving device, the transmitting device including a processor, a plurality of transmitting antennas, and at least one receiving An antenna, each of which corresponds to at least one transmission mode, and is characterized by:

The processor is configured to send, by using the transmit antenna, N pilot signals and corresponding N sets of antenna index information to a receiving apparatus in one subframe; wherein each pilot signal corresponds to one transmission mode; the antenna The index information includes a beam identifier and an antenna identifier;

The processor is further configured to receive, by using the receiving antenna, antenna mode indication information that is sent by the receiving device, where the antenna mode indication information includes a most selected by the receiving device according to the N pilot signals. Antenna index information corresponding to the optimal transmission mode;

The processor is further configured to use, as an optimal transmission mode of the receiving device, a transmission mode corresponding to antenna index information included in the antenna mode indication information.
The transmitting apparatus according to claim 1, wherein each of the transmitting antennas corresponds to one antenna identifier, and each of the transmitting modes corresponds to one beam identifier; the subframe includes a sector scan frame or a beacon frame; A pilot signal domain and a data domain are included, the pilot signal domain includes the N pilot signals, and the data domain includes the N sets of antenna index information.
The transmitting device according to claim 2, wherein:

When the processor sends the N pilot signals and the corresponding N sets of antenna index information to the receiving device in one subframe by using the transmitting antenna, the processor is specifically configured to: pass the transmitting antenna in a pilot signal domain of one subframe. The N pilot signals corresponding to the N types of transmission modes are simultaneously transmitted; and the N sets of antenna index information corresponding to the N types of transmission modes are simultaneously transmitted in the data domain of the subframe by the transmitting antenna.
The transmitting apparatus according to claim 2, wherein the processor is specifically configured to: before transmitting, by the transmitting antenna, N pilot signals and corresponding N sets of antenna index information to a receiving apparatus in one subframe:

Obtaining a sector scan frame corresponding to each of the N transmission modes of the transmit antenna, where the sector scan frame corresponding to each of the transmit modes includes a data domain, and the data The domain includes antenna index information corresponding to the transmission mode;

Aligning the data fields in each of the sector scan frames to obtain a subframe including N sets of antenna index information; or acquiring antenna index information in a data domain of each of the sector scan frames, and Having cascaded the obtained N sets of antenna index information to obtain a subframe including the N sets of antenna index information;

Further, when the processor sends the N pilot signals and the corresponding N sets of antenna index information to the receiving device in one subframe by using the transmitting antenna, the processor is specifically configured to: The N pilot signals corresponding to the N transmission modes are simultaneously transmitted in the pilot signal domain of the subframe of the N sets of antenna index information.
A receiving device is applied to a network system supporting a next-generation 60 GHz 802.11ad, the network system comprising a transmitting device and a receiving device, the receiving device including a processor, a plurality of transmitting antennas, and at least one receiving An antenna, each of which corresponds to at least one transmission mode, and is characterized by:

The processor is configured to receive, by the receiving antenna, N pilot signals that are sent by the sending device in one subframe and corresponding N sets of antenna index information; wherein each pilot signal corresponds to one transmission mode; The antenna index information includes a beam identifier and an antenna identifier;

The processor is further configured to determine antenna index information corresponding to the optimal transmit antenna based on the N pilot signals received by the receiving antenna;

The processor is further configured to send antenna mode indication information including antenna index information corresponding to the optimal transmit antenna to the sending apparatus by using the transmit antenna, so that the sending apparatus sends the antenna mode indication information The transmission mode corresponding to the included antenna index information is used as an optimal transmission mode of the receiving device.
The receiving apparatus according to claim 5, wherein each of the transmitting antennas corresponds to an antenna identifier, and the subframe comprises a sector scanning frame or a beacon frame; the subframe includes a pilot signal domain and a data domain, The pilot signal domain includes the N pilot signals, and the data domain includes the N sets of antenna index information.
The receiving apparatus according to claim 5, wherein said processor determines an optimal transmitting antenna based on said N pilot signals received through said receiving antenna The corresponding antenna index information is specifically used for:

Performing channel estimation on the received N pilot signals to obtain channel estimation results of channels corresponding to the N pilot signals;

Calculating a signal to interference ratio of the corresponding channel of each pilot signal according to a channel estimation result of the corresponding channel of each pilot signal;

And selecting, according to a signal to interference ratio of the corresponding channel of each pilot signal, antenna index information corresponding to an optimal transmission mode.
An antenna mode selection method is applied to a network system supporting a next-generation 60 GHz 802.11ad, where the network system includes a transmitting device and a receiving device, where the transmitting device includes a processor, a plurality of transmitting antennas, and at least one receiving antenna. Each of the transmit antennas corresponds to at least one transmit mode, and the method includes:

The transmitting device sends N pilot signals and corresponding N sets of antenna index information to the receiving device in one subframe; wherein each pilot signal corresponds to one transmission mode; the antenna index information includes a beam identifier and an antenna identifier;

Receiving antenna mode indication information sent by the receiving device, where the antenna mode indication information includes antenna index information corresponding to an optimal transmission mode selected by the receiving device according to the N pilot signals;

The transmission mode corresponding to the antenna index information included in the antenna mode indication information is used as an optimal transmission mode of the receiving apparatus.
The method according to claim 8, wherein each of the transmitting antennas corresponds to one antenna identifier, and each of the transmission modes corresponds to one beam identifier; the subframe includes a sector scan frame or a beacon frame; and the subframe includes a pilot signal domain and a data domain, the pilot signal domain including the N pilot signals, and the data domain includes the N sets of antenna index information.
The method according to claim 9, wherein the transmitting means transmitting the N pilot signals to the receiving device in one subframe and the corresponding N sets of antenna index information specifically include:

Transmitting N pilot signals corresponding to the N transmission modes simultaneously in a pilot signal domain of one subframe; simultaneously transmitting the N transmission mode pairs in a data domain of the subframe N sets of antenna index information should be.
The method according to claim 9, wherein the transmitting device, before transmitting the N pilot signals and the corresponding N sets of antenna index information to the receiving device in one subframe, further includes:

And acquiring a sector scan frame corresponding to the N modes of the transmit antennas, where the sector scan frame corresponding to each of the transmit modes includes a data field, where the data field includes an antenna index corresponding to the transmit mode information;

Aligning the data fields in each of the sector scan frames to obtain a subframe including N sets of antenna index information; or acquiring antenna index information in a data domain of each of the sector scan frames, and Having cascaded the obtained N sets of antenna index information to obtain a subframe including the N sets of antenna index information;

Further, the sending, by the sending device, the N pilot signals and the corresponding N sets of antenna index information to the receiving device in one subframe specifically include:

And transmitting N pilot signals corresponding to the N types of transmission modes simultaneously in a pilot signal field of the subframe including the N sets of antenna index information.
An antenna mode selection method is applied to a network system supporting a next-generation 60 GHz 802.11ad, where the network system includes a transmitting device and a receiving device, and the receiving device includes a processor, a plurality of transmitting antennas, and at least one receiving antenna. Each of the transmit antennas corresponds to at least one transmit mode, and the method includes:

The receiving device receives N pilot signals sent by the transmitting device in one subframe and corresponding N sets of antenna index information; wherein each pilot signal corresponds to one transmission mode; the antenna index information includes a beam identifier and an antenna identifier;

Determining antenna index information corresponding to an optimal transmission mode based on the N pilot signals;

Transmitting, to the transmitting device, antenna mode indication information including antenna index information corresponding to the optimal transmit antenna, so that the transmitting device uses a transmission mode corresponding to antenna index information included in the antenna mode indication information as the receiving The optimal emission mode of the device.
The method of claim 12 wherein each of the transmitting antennas Corresponding to an antenna identifier; the subframe includes a sector scan frame or a beacon frame; the subframe includes a pilot signal domain and a data domain, and the pilot signal domain includes the N pilot signals, and the data The domain includes the N sets of antenna index information.
The method according to claim 12, wherein the determining the antenna index information corresponding to the optimal transmission mode based on the N pilot signals specifically includes:

Performing channel estimation on the received N pilot signals to obtain channel estimation results of channels corresponding to the N pilot signals;

Calculating a signal to interference ratio of the corresponding channel of each pilot signal according to a channel estimation result of the corresponding channel of each pilot signal;

And selecting, according to a signal to interference ratio of the corresponding channel of each pilot signal, antenna index information corresponding to an optimal transmission mode.
An antenna mode selection system, characterized in that the system comprises: a transmitting device and a receiving device, wherein the transmitting device is the transmitting device according to any one of claims 1 to 4, the receiving device is a claim The receiving device according to any one of 5 to 7.