CN106464709B

CN106464709B - The sending, receiving method and device of transmission frame, equipment

Info

Publication number: CN106464709B
Application number: CN201480080267.4A
Authority: CN
Inventors: 杜振国
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-12-29
Filing date: 2014-12-29
Publication date: 2019-05-21
Anticipated expiration: 2034-12-29
Also published as: CN106464709A; WO2016106489A1

Abstract

The embodiment of the invention discloses the transmissions of transmission frame, method of reseptance and device, equipment, transmitting terminal in the first signaling field of transmission frame to be sent by carrying duplication instruction message and bandwidth information, information is indicated according to duplication, at least one field after first signaling field of transmission frame is subjected to frequency domain duplication as unit of specific bandwidth, so that the transmission frame after duplication is full of transmission channel frequency bandwidth indicated by bandwidth information, then the transmission frame after duplication is sent on the transmission channel indicated by bandwidth information, receiving end is set reliably to receive the data in the field replicated in transmission frame, improve the reliability of the transmission of data in the transmission frame between transmitting terminal and receiving end.

Description

The sending, receiving method and device of transmission frame, equipment

Technical field

The present invention relates to the sending, receiving methods and device of field of communication technology more particularly to transmission frame, equipment.

Background technique

Access point (English: Access Point, referred to as: AP) with AP under one or more websites (English: Station, When carrying out the transmission of transmission frame between referred to as: STA), certain STA may be because that the reasons such as channel can not be accurately received AP hair The transmission frame sent, AP are also possible to that the transmission frame of STA transmission can not be accurately received.

For example, in orthogonal frequency division multiplexing (English: Orthogonal Frequency Division Multiple Access, referred to as: OFDMA) in mechanism, AP is needed first to multiple STA transmission trigger frame (Trigger frame) to be scheduled, with point The resource of uplink or downlink reception with these STA, i.e. AP dispatch simultaneously multiple STA on different subchannels uplink or under Row transmission.AP sends Trigger frame, wherein including the uplink and downlink resource scheduling information of subsequent multiple STA；Scheduled STA root It is sent or received on corresponding time and frequency range according to the content in Trigger frame.Certainly, Trigger frame can also be dispatched only Uplink (UL-only), or only dispatching downlink (DL-only), or uplink and downlink is dispatched simultaneously.In uplink multi-users multiple-input, multiple-output (English Text: Multiple Input Multiple Output, referred to as: MIMO) and in mechanism, multiple users are defeated with keeping pouring in simultaneously, but every A user uses not cocurrent flow.This also needs AP with transmission technology and dispatches resource in advance, that is, is also required to Trigger frame.

No matter in OFDMA or MIMO, the reception object of Trigger frame is all multiple users to be scheduled.If its Partial user fails to be properly received Trigger frame, then subsequent all scheduling for the user are all invalid, corresponding to provide Source is gone wasted, and therefore, the reliability for improving Trigger frame seems especially important.

Does so, Trigger frame transmit whether insecure problem often occurs? in current 802.11 standard, AP can be to Its association user announces a specific 20MHz primary channel (primary channel), and each user usually only listens to the base This channel.It is subsequent just to expand to broader bandwidth only when hearing the subsequent notice using broader bandwidth on fundamental channels Up.But no matter which kind of bandwidth is used, primary channel must be all included in.Based on this principle, the transmission frequency of Trigger frame Band also must include primary channel.And in 802.11ax equipment dense distribution scene, since user to be scheduled is located at difference The interference environment of position, each user differs widely: on fundamental channels, some users measure interference very little, and some use Family is very big.For the latter, it is difficult to be properly received Trigger frame.Therefore, because equipment dense distribution and primary channel are deposited It is larger that insecure probability is transmitted in, Trigger frame.

Only illustrate to transmit insecure problem between AP and STA by taking Trigger frame as an example above, it is unreliable in fact to transmit The problem of be present in the transmission of any frame, therefore, it is necessary to improve the frame between access point and website transmission reliability, only It is in the multicast scene as similar Trigger frame, the transmission reliability problem of frame seems especially prominent.

Under normal circumstances, improve frame transmission reliability method be using lower modulation coding scheme (English: Modulation and Coding Scheme, referred to as: MCS), i.e., lower modulation rate and channel coding code rate.For example, Minimum MCS is MCS0 in 802.11ac, i.e., code rate is 1/2, modulation system is binary phase shift keying (English: Binary Phase Shift Keying, referred to as: BPSK)；And in 802.11ah, a kind of MCS of more low order is proposed, i.e., by MCS0's The result of modulating-coding is repeated, to enhance reliability.However, the essence of this more low order MCS is that introducing is more superfluous Remaining but to will lead to the data that transmitted to exchange the raising of reliability for and increase, transmission time is longer, reduces efficiency of transmission.

A kind of non-HT duplicate transmission mode is proposed in 802.11n, as shown in Figure 1.One is constructed first Then the transmission frame of 20MHz is replicated in multiple 20MHz channels, is then sent.The purpose of non-HT duplicate It is to reserve compared with wide channels.For example, when 802.11ac equipment intend using 80MHz to another 802.11ac equipment into When row transmission, 4 requests will be sent in a manner of non-HT duplicate on 80MHz channel and send (English: Request to Send, referred to as: RTS) frame.Other any third party devices (this cell or adjacent cell) oneself primary channel it is (different small The primary channel in area may be different) when hearing the RTS, that is, it may know that other side will use the channel in the time below, then Competitive channel will not be actively removed, in case the transmission to other side interferes.It should be strongly noted that non-HT Duplicate does not have the ability for improving transmission reliability, because for a reception user, when it is at some It is that can not know whether the frame also replicates on other channels, and at which when receiving a transmission frame on 20MHz channel It is replicated on channel.Therefore, even if transmitting terminal really replicates the frame on multiple 20MHz, receiving end can not also utilize these Copy is merged to improve reliability.

From the foregoing, it will be observed that the prior art can not make receiving end reliably receive the transmission frame of transmitting terminal transmission, need to improve The reliability of frame transmission between transmitting terminal and receiving end.

Summary of the invention

The embodiment of the invention provides the sending, receiving method of transmission frame and devices, equipment, to improve transmitting terminal and reception The reliability of frame transmission between end.

In a first aspect, providing a kind of sending method of transmission frame, comprising:

A transmission frame is generated, the duplication comprising the transmission frame indicates information in the first signaling field of the transmission frame And bandwidth information；

Information is indicated according to the duplication, by least one field after the first signaling field of the transmission frame with spy Determining bandwidth is that unit carries out frequency domain duplication, so that the transmission frame after duplication is full of the frequency of transmission channel indicated by the bandwidth information Rate bandwidth；

Transmission frame after sending the duplication on the transmission channel indicated by the bandwidth information.

In the first possible implementation, the duplication instruction information includes duplication instruction；

The duplication instruction is used to indicate whether at least one field after the first signaling field to the transmission frame Carry out frequency domain duplication.

With reference to first aspect or the first possible implementation of first aspect, in second of possible implementation In, the specific bandwidth is pre-set bandwidths.

With reference to first aspect or the first possible implementation of first aspect, in the third possible implementation In, the duplication instruction information includes the specific bandwidth；

Wherein, the specific bandwidth is used to indicate at least one field after the first signaling field by the transmission frame Carry out frequency domain bandwidth unit when frequency domain duplication.

With reference to first aspect or second of the first possible implementation of first aspect or first aspect possible The possible implementation of the third of implementation or first aspect, in the fourth possible implementation, the duplication refer to Show that information further includes the identification information of at least one field after the first signaling field of the transmission frame replicated.

With reference to first aspect or second of the first possible implementation of first aspect or first aspect possible 4th kind of possible implementation of the possible implementation of the third of implementation or first aspect or first aspect, In five kinds of possible implementations, the bandwidth information is the bitmap for being used for transmission the transmission subchannel of the transmission frame, institute All transmission subchannels of rheme figure instruction collectively constitute the transmission channel for transmitting the transmission frame.

With reference to first aspect or second of the first possible implementation of first aspect or first aspect possible The 4th kind of possible implementation or of the possible implementation of the third of implementation or first aspect or first aspect 5th kind of possible implementation of one side, in a sixth possible implementation, the first signaling word of the transmission frame At least one field after section includes: all fields after the first signaling field of the transmission frame, or, data field, Or, the second signaling field, or, data field and the second signaling field.

With reference to first aspect, in the 7th kind of possible implementation, the duplication instruction information includes being used to indicate to be At least one field after no the first signaling field to the transmission frame carries out the frequency domain bandwidth of frequency domain duplication and duplication At least two bit informations of unit.

Second aspect provides a kind of method of reseptance of transmission frame, comprising:

The duplication instruction information and bandwidth information of the transmission frame are detected in the first signaling field of transmission frame；

Indicate information according to the duplication, receive on the transmission channel indicated by the bandwidth information after duplication described in At least one copy of at least one field after first signaling field of transmission frame, each of at least one described copy Copy corresponds to a specific bandwidth in the transmission channel；

At least one copy described in receiving is decoded.

In conjunction with the possible implementation of the first of second aspect or second aspect, in second of possible implementation In, the specific bandwidth is pre-set bandwidths.

In conjunction with the possible implementation of the first of second aspect or second aspect, in the third possible implementation In, the duplication instruction information includes the specific bandwidth；

Second in conjunction with the possible implementation of the first of second aspect or second aspect or second aspect is possible The possible implementation of the third of implementation or second aspect, in the fourth possible implementation, the duplication refer to Show that information further includes the identification information of at least one field after the first signaling field of the transmission frame replicated.

Second in conjunction with the possible implementation of the first of second aspect or second aspect or second aspect is possible 4th kind of possible implementation of the possible implementation of the third of implementation or second aspect or second aspect, In five kinds of possible implementations, the bandwidth information is the bitmap for being used for transmission the transmission subchannel of the transmission frame, described All transmission subchannels of bitmap instruction collectively constitute the transmission channel for transmitting the transmission frame, described to be indicated according to the duplication Information, after the first signaling field that the transmission frame after duplication is received on the transmission channel indicated by the bandwidth information At least one field at least one copy, comprising:

First signaling field of the transmission frame after receiving the duplication on the transmission channel indicated by the bitmap At least one copy of at least one field later.

In conjunction with second aspect, in a sixth possible implementation, the duplication instruction information includes being used to indicate to be At least one field after no the first signaling field to the transmission frame carries out the frequency domain bandwidth of frequency domain duplication and duplication At least two bit informations of unit.

Second in conjunction with the possible implementation of the first of second aspect or second aspect or second aspect is possible The 4th kind of possible implementation or of the possible implementation of the third of implementation or second aspect or second aspect 5th kind of possible implementation of two aspects or the 6th kind of possible implementation of second aspect, in the 7th kind of possible reality In existing mode, at least one field after the first signaling field of the transmission frame includes: the first signaling of the transmission frame All fields after field, or, data field, or, the second signaling field, or, data field and the second signaling field.

Second in conjunction with the possible implementation of the first of second aspect or second aspect or second aspect is possible The 4th kind of possible implementation or of the possible implementation of the third of implementation or second aspect or second aspect The 7th of 5th kind of possible implementation of two aspects or the 6th kind of possible implementation of second aspect or second aspect Kind possible implementation, in the 8th kind of possible implementation, it is described will receive described at least one copy carry out Decoding, comprising:

At least one copy described in receiving merges；

Transmission frame after the merging is decoded.

The third aspect provides a kind of sending device of transmission frame, comprising:

Generation unit includes the transmission frame in the first signaling field of the transmission frame for generating a transmission frame Duplication instruction information and bandwidth information；

Copied cells, for according to the duplication instruction information, by after the first signaling field of the transmission frame extremely A few field carries out frequency domain duplication as unit of specific bandwidth, so that the transmission frame after duplication is signified full of the bandwidth information The transmission channel frequency bandwidth shown；

Transmission unit, the transmission frame after the duplication is sent on the transmission channel indicated by the bandwidth information.

In conjunction with the possible implementation of the first of the third aspect or the third aspect, in second of possible implementation In, the specific bandwidth is pre-set bandwidths.

In conjunction with the possible implementation of the first of the third aspect or the third aspect, in the third possible implementation In, the duplication instruction information includes the specific bandwidth；

Second in conjunction with the possible implementation of the first of the third aspect or the third aspect or the third aspect is possible The possible implementation of the third of implementation or the third aspect, in the fourth possible implementation, the duplication refer to Show that information further includes the identification information of at least one field after the first signaling field of the transmission frame replicated.

Second in conjunction with the possible implementation of the first of the third aspect or the third aspect or the third aspect is possible The possible implementation of the third of implementation or the third aspect, in the fourth possible implementation, the bandwidth letter Breath is the bitmap for being used for transmission the transmission subchannel of the transmission frame, common group of all transmission subchannels of the bitmap instruction At the transmission channel for transmitting the transmission frame.

Second in conjunction with the possible implementation of the first of the third aspect or the third aspect or the third aspect is possible The 4th kind of possible implementation or of the possible implementation of the third of implementation or the third aspect or the third aspect 5th kind of possible implementation of three aspects, in a sixth possible implementation, the first signaling word of the transmission frame At least one field after section includes: all fields after the first signaling field of the transmission frame, or, data field, Or, the second signaling field, or, data field and the second signaling field.

In conjunction with the third aspect, in the 7th kind of possible implementation, the duplication instruction information includes being used to indicate to be At least one field after no the first signaling field to the transmission frame carries out the frequency domain bandwidth of frequency domain duplication and duplication At least two bit informations of unit.

Fourth aspect provides a kind of reception device of transmission frame, comprising:

Detection unit, the duplication for detecting the transmission frame in the first signaling field of transmission frame indicate information and band Wide information；

Receiving unit connects on the transmission channel indicated by the bandwidth information for indicating information according to the duplication At least one copy of at least one field after first signaling field of the transmission frame after recovering system, described at least one Each copy in a copy corresponds to a specific bandwidth in the transmission channel；

First decoding unit is decoded at least one copy described in receiving.

In conjunction with the possible implementation of the first of fourth aspect or fourth aspect, in second of possible implementation In, the specific bandwidth is pre-set bandwidths.

In conjunction with the possible implementation of the first of fourth aspect or fourth aspect, in the third possible implementation In, the duplication instruction information includes the specific bandwidth；

Second in conjunction with the possible implementation of the first of fourth aspect or fourth aspect or fourth aspect is possible The possible implementation of the third of implementation or fourth aspect, in the fourth possible implementation, the duplication refer to Show that information further includes the identification information of at least one field after the first signaling field of the transmission frame replicated.

Second in conjunction with the possible implementation of the first of fourth aspect or fourth aspect or fourth aspect is possible 4th kind of possible implementation of the possible implementation of the third of implementation or fourth aspect or fourth aspect, In five kinds of possible implementations, the bandwidth information is the bitmap for being used for transmission the transmission subchannel of the transmission frame, described All transmission subchannels of bitmap instruction collectively constitute the transmission channel for transmitting the transmission frame, and the reception device is specifically used In:

In conjunction with fourth aspect, in a sixth possible implementation, the duplication instruction information includes being used to indicate to be At least one field after no the first signaling field to the transmission frame carries out the frequency domain bandwidth of frequency domain duplication and duplication At least two bit informations of unit.

Second in conjunction with the possible implementation of the first of fourth aspect or fourth aspect or fourth aspect is possible The 4th kind of possible implementation or of the possible implementation of the third of implementation or fourth aspect or fourth aspect 5th kind of possible implementation of four aspects or the 6th kind of possible implementation of fourth aspect, in the 7th kind of possible reality In existing mode, at least one field after the first signaling field of the transmission frame includes: the first signaling of the transmission frame All fields after field, or, data field, or, the second signaling field, or, data field and the second signaling field.

Second in conjunction with the possible implementation of the first of fourth aspect or fourth aspect or fourth aspect is possible The 4th kind of possible implementation or of the possible implementation of the third of implementation or fourth aspect or fourth aspect The 7th of 5th kind of possible implementation of four aspects or the 6th kind of possible implementation of fourth aspect or fourth aspect The possible implementation of kind, in the 8th kind of possible implementation, first decoding unit includes:

Combining unit is merged at least one copy described in receiving；

Second decoding unit, for being decoded to the transmission frame after the merging.

5th aspect, provides a kind of sending device of transmission frame, comprising: processor and transmitter；

The processor includes the transmission frame in the first signaling field of the transmission frame for generating a transmission frame Duplication instruction information and bandwidth information；

The processor is also used to indicate information according to the duplication, after the first signaling field of the transmission frame At least one field carries out frequency domain duplication as unit of specific bandwidth, so that the transmission frame after duplication is full of the bandwidth information institute The transmission channel frequency bandwidth of instruction；

The transmitter is for sending the transmission frame after the duplication on the transmission channel indicated by the bandwidth information.

In conjunction with the first possible implementation of the 5th aspect or the 5th aspect, in second of possible implementation In, the specific bandwidth is pre-set bandwidths.

In conjunction with the first possible implementation of the 5th aspect or the 5th aspect, in the third possible implementation In, the duplication instruction information includes the specific bandwidth；

Second in conjunction with the first possible implementation or the 5th aspect of the 5th aspect or the 5th aspect is possible The third possible implementation of implementation or the 5th aspect, in the fourth possible implementation, the duplication refers to Show that information further includes the identification information of at least one field after the first signaling field of the transmission frame replicated.

Second in conjunction with the first possible implementation or the 5th aspect of the 5th aspect or the 5th aspect is possible The 4th kind of possible implementation of the third possible implementation or the 5th aspect of implementation or the 5th aspect, the In five kinds of possible implementations, the bandwidth information is the bitmap for being used for transmission the transmission subchannel of the transmission frame, institute All transmission subchannels of rheme figure instruction collectively constitute the transmission channel for transmitting the transmission frame.

Second in conjunction with the first possible implementation or the 5th aspect of the 5th aspect or the 5th aspect is possible The 4th kind of possible implementation or the of the third possible implementation or the 5th aspect of implementation or the 5th aspect 5th kind of possible implementation of five aspects, in a sixth possible implementation, the first signaling word of the transmission frame At least one field after section includes: all fields after the first signaling field of the transmission frame, or, data field, Or, the second signaling field, or, data field and the second signaling field.

In conjunction with the 5th aspect, in the 7th kind of possible implementation, the duplication instruction information includes being used to indicate to be At least one field after no the first signaling field to the transmission frame carries out the frequency domain bandwidth of frequency domain duplication and duplication At least two bit informations of unit.

6th aspect, provides a kind of receiving device of transmission frame, comprising: processor and receiver；

The processor be used for detected in the first signaling field of transmission frame the transmission frame duplication instruction information and Bandwidth information；

The receiver is used to indicate information according to the duplication, connect on the transmission channel indicated by the bandwidth information At least one copy of at least one field after first signaling field of the transmission frame after recovering system, described at least one Each copy in a copy corresponds to a specific bandwidth in the transmission channel；

At least one described copy that the processor is also used to receive is decoded.

In conjunction with the first possible implementation of the 6th aspect or the 6th aspect, in second of possible implementation In, the specific bandwidth is pre-set bandwidths.

In conjunction with the first possible implementation of the 6th aspect or the 6th aspect, in the third possible implementation In, the duplication instruction information includes the specific bandwidth；

Second in conjunction with the first possible implementation or the 6th aspect of the 6th aspect or the 6th aspect is possible The third possible implementation of implementation or the 6th aspect, in the fourth possible implementation, the duplication refers to Show that information further includes the identification information of at least one field after the first signaling field of the transmission frame replicated.

Second in conjunction with the first possible implementation or the 6th aspect of the 6th aspect or the 6th aspect is possible The 4th kind of possible implementation of the third possible implementation or the 6th aspect of implementation or the 6th aspect, the In five kinds of possible implementations, the bandwidth information is the bitmap for being used for transmission the transmission subchannel of the transmission frame, described All transmission subchannels of bitmap instruction collectively constitute the transmission channel for transmitting the transmission frame, and the receiver is specifically used for:

In conjunction with the 6th aspect, in a sixth possible implementation, the duplication instruction information includes being used to indicate to be At least one field after no the first signaling field to the transmission frame carries out the frequency domain bandwidth of frequency domain duplication and duplication At least two bit informations of unit.

Second in conjunction with the first possible implementation or the 6th aspect of the 6th aspect or the 6th aspect is possible The 4th kind of possible implementation or the of the third possible implementation or the 6th aspect of implementation or the 6th aspect 6th kind of possible implementation of the 5th kind of possible implementation of six aspects or the 6th aspect, in the 7th kind of possible reality In existing mode, at least one field after the first signaling field of the transmission frame includes: the first signaling of the transmission frame All fields after field, or, data field, or, the second signaling field, or, data field and the second signaling field.

Second in conjunction with the first possible implementation or the 6th aspect of the 6th aspect or the 6th aspect is possible The 4th kind of possible implementation or the of the third possible implementation or the 6th aspect of implementation or the 6th aspect The 7th of the 6th kind of possible implementation or the 6th aspect of 5th kind of possible implementation of six aspects or the 6th aspect Kind possible implementation, in the 8th kind of possible implementation, the processor execute it is described will receive described in extremely A step of few copy is decoded, comprising:

At least one copy described in receiving merges；

Transmission frame after the merging is decoded.

As it can be seen that transmitting terminal is logical using the sending, receiving method and device of transmission frame provided in an embodiment of the present invention, equipment It crosses and carries duplication instruction message and bandwidth information in the first signaling field of transmission frame to be sent, according to duplication instruction letter Breath, carries out frequency domain duplication at least one field after the first signaling field of transmission frame as unit of specific bandwidth, so that Transmission frame after duplication is full of transmission channel frequency bandwidth indicated by bandwidth information, the then transmission indicated by bandwidth information The transmission frame after duplication is sent on channel, so that receiving end is reliably received the data in the field replicated in transmission frame, is mentioned The reliability of the transmission of data in high transmission frame between transmitting terminal and receiving end.

Detailed description of the invention

It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings Obtain other attached drawings.

Fig. 1 is a kind of transmission mode schematic diagram of transmission frame in the prior art；

Fig. 2 is a kind of flow diagram of the sending method of transmission frame provided in an embodiment of the present invention；

Fig. 3 is a kind of duplication schematic diagram of transmission frame；

Fig. 4 is the duplication schematic diagram of another transmission frame；

Fig. 5 is the modulating-coding schematic diagram of MCS32 in the prior art a kind of；

Fig. 6 is the duplication schematic diagram of another transmission frame；

Fig. 7 is the duplication schematic diagram of another transmission frame；

Fig. 8 is the duplication schematic diagram of another transmission frame；

Fig. 9 is the duplication schematic diagram of another transmission frame；

Figure 10 is a kind of flow diagram of the method for reseptance of transmission frame provided in an embodiment of the present invention；

Figure 11 is a kind of structural schematic diagram of the sending device of transmission frame provided in an embodiment of the present invention；

Figure 12 is a kind of structural schematic diagram of the reception device of transmission frame provided in an embodiment of the present invention；

Figure 13 is a kind of structural schematic diagram of the sending device of transmission frame provided in an embodiment of the present invention；

Figure 14 is a kind of structural schematic diagram of the receiving device of transmission frame provided in an embodiment of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

Referring to Fig. 2, being a kind of flow diagram of the sending method of transmission frame provided in an embodiment of the present invention, this method The following steps are included:

Step S101 generates a transmission frame, answering comprising the transmission frame in the first signaling field of the transmission frame System instruction information and bandwidth information.

In embodiments of the present invention, transmitting terminal can be AP, then receiving end is one or more STA, and transmitting terminal can also be with It is STA, then receiving end is AP, and transmitting terminal and receiving end can negotiate a primary channel, for example, in current 802.11 standard, AP A specific 20MHz primary channel can be announced to its association user, receiving end can generally listen to the primary channel.

Transmitting terminal generates a transmission frame to be transmitted, which includes the first signaling field, further includes thereafter certainly Data field etc..Duplication instruction information and bandwidth information is written in transmitting terminal in the first signaling field, which indicates that information can To include duplication instruction, it is used to indicate whether that one or more fields after the first signaling field to the transmission frame carry out frequency Domain duplication；The transmission channel frequency bandwidth that transmission frame after bandwidth information instruction duplication should be full of.

Under normal conditions, when the integral multiple that the total bandwidth of transmission channel is greater than 20MHz and is 20MHz, the first signaling word Section and its all fields before are to carry out copy transmissions in frequency domain as unit of 20MHz, and after the first signaling field Other fields are then transmitted in the way of indicated by the first signaling field.

Step S102 indicates information according to the duplication, by least one after the first signaling field of the transmission frame A field carries out frequency domain duplication as unit of specific bandwidth, so that the transmission frame after duplication is full of indicated by the bandwidth information Transmission channel frequency bandwidth.

Information is indicated according to the duplication, and field to be copied is subjected to frequency domain duplication as unit of specific bandwidth, it is then, multiple Transmission frame after system is full of transmission channel frequency bandwidth indicated by bandwidth information.For example, the specific bandwidth is 20MHz, transmission Channel frequency bandwidth is 80MHz, then should carry out four times to one or more fields after the first signaling field of the transmission frame Duplication, so that the transmission frame after duplication is full of the transmission channel frequency bandwidth of 80MHz.

Step S103 sends the transmission frame after the duplication on the transmission channel indicated by the bandwidth information.

The preparation of field is completed some or all of after the first signaling field in generation transmission frame, copy transmissions frame Afterwards, the transmission frame after the duplication is sent on transmitting terminal transmission channel indicated by the bandwidth information, in this way, receiving end is connect Time receiving, if detect has duplication instruction information and bandwidth information in the first signaling field, receiving end it was determined that At least one after first signaling field of the transmission frame received in transmission channel frequency bandwidth indicated by bandwidth information Multiple copies of field therefore can be decoded to multiple copies in frequency domain copy transmissions as unit of specific bandwidth, Specifically, these copies are merged using folding, then, combined transmission frame is decoded, so as to accurate And it is reliably received the data content of at least one field of duplication, to improve the transmission between transmitting terminal and receiving end The reliability that data are transmitted in frame.Folding can be any folding, such as selection combining, maximum-ratio combing, take Certainly in the selection and realization of receiving end.

In concrete implementation, a kind of duplication schematic diagram of transmission frame as shown in Figure 3, transmission frame uses as shown in Figure 3 Physical layer convergence process protocol Data Unit (physical layer convergence procedure protocol data Unit, PPDU) structure.The PPDU includes old pilot tone (L-preamble), the first signaling field (HE-SIG-A), Short Training Field (HE-STF), long training field (HE-LTF) and data field (Data) can also include the second signaling field (HE- SIG-B).At this in the specific implementation, including that bandwidth (English: Bandwidth, abbreviation: BW) and duplication refer in the first signaling field Show (duplicate indication), for example, it is N × 20MHz that BW, which can be set, wherein specific bandwidth 20MHz, at this In, which is that the bandwidth that pre-set bandwidths, i.e. transmitting terminal and receiving end have consulted in advance or agreement are prespecified Bandwidth, transmitting terminal can not need to notify receiving end again.It should be noted that N is not offered as the number of transmission channel here, It can be understood as the transmission channel frequency bandwidth full of N × 20MHz to need to carry out n times duplication.Duplication instruction can be set to 0 or 1 or the mark that can identify of other both sides, for example, being set as 1 expression to one after the first signaling field in transmission frame Or multiple fields are replicated, and are set as 0 expression and are not replicated.The duplication instruction message can be indicated to the first signaling word All fields such as HE-STF, HE-LTF, HE-SIG-B and Data field after section is replicated, and also can choose one of them Or multiple fields are replicated.Which field is specifically replicated, usually defined or transmitting terminal and receiving end are prior in advance for agreement Negotiate.It is of course also possible to be explicitly identified in the first signaling field, i.e. it is multiple comprising carrying out frequency domain in the first signaling field The identification information of one or more fields of system.Then, by the one or more after the first signaling field of above-mentioned 20MHzPPDU Field is replicated in the transmission channel frequency bandwidth of N × 20MHz, and is sent out in the transmission channel frequency bandwidth of N × 20MHz Transmission frame after sending duplication.For example, in Fig. 3 being replicated to Data field, BW=80MHz is then needed to Data field Duplication four times.In Fig. 3, duplication instruction and BW are located in the first signaling field HE-SIG-A, and the field of transmission to be copied is located at Data field, the data content in the data field for example can be resource allocation information.For example, the transmission frame is Trigger Frame includes scheduling information in data field.It is worth noting that transmission of three 20MHz compared to minimum 20MHz of high frequency, There may be phase rotatioies when its constellation mapping, in order to reduce peak-to-average power ratio (English: Peakto Average Power Ratio, referred to as: PAPR).This is general technology when band is wider than 20MHz transmission in Current standards, behind it is no longer special It does not emphasize.

Certainly, if removing HE-SIG-B in above-mentioned PPDU structure, at this point, bandwidth and duplication instruction are located at unique HE- In SIG field.

It should be strongly noted that the instruction of bandwidth is not necessarily a value, and can due to that may use discontinuous frequency band It can be the bitmap (Bitmap) of the frequency transmission subchannel of a composition current transmission channel, another transmission as shown in Figure 4 The duplication schematic diagram of frame, wherein third 20MHz is not used, at this point, receiving end should exclude not when reception or union operation The subband used.

Referring to Fig. 5, proposing a kind of title in 802.11n for the modulating-coding schematic diagram of MCS32 in the prior art a kind of It is then meaned for the modulation coding scheme of MCS32 when a user detects the MCS=32 in HT-SIG on fundamental channels Following data fields will be transmitted with 40MHz, and the data on two 20MHz be it is duplicate, used modulation is compiled Code mode is MCS0.At this point, the data of two 20MHz can be merged (such as maximum-ratio combing) by user, then decode, thus Improve the reliability of data portion transmission.This method, data portion can only carry out repeating (MCS32 as unit of fixed-bandwidth For 20MHz), and (because the MCS field in HT-SIG have been set to 32, can only cannot be used to refer to using fixed MCS Show other modulation coding schemes of the part Data).And in fact, since the use of folding improves signal and interferes plus make an uproar Acoustic ratio (English: Signal to Interference plus Noise Ratio, referred to as: SINR), Data part there is a possibility that With higher MCS.

The embodiment of the present invention improves it, please refers to the duplication signal of Fig. 6 and another transmission frame shown in Fig. 7 Figure, as shown in fig. 6, being replicated in 80MHz bandwidth as unit of 40MHz is a kind of better twice when channel condition is preferable Selection can reduce time-domain transmission duration, improve efficiency of transmission；Similarly, as shown in fig. 7, when channel condition is poor, with 20MHz It may be inadequate for replicate for unit, and duplication is carried out as unit of 10MHz just can guarantee reliability.Therefore, multiple herein Needed in instruction message processed include specific bandwidth information, the specific bandwidth be used to indicate by the first signaling field of transmission frame it At least one field afterwards carries out the frequency domain bandwidth unit (English: Bandwidth Unit, BU) when frequency domain duplication.Herein, When copy transmissions frame, because the bandwidth for the primary channel that transmitting terminal and receiving end consult is constant, for example, 20MHz, so And the specific frequency domain bandwidth unit for carrying out field duplication can be more than or less than primary bandwidth unit, therefore, duplication and transmission pass When defeated frame, L-premble and HE-SIG-A are still remained unchanged, using fundamental channel bandwidth 20MHz as unit copy transmissions, only to it Field afterwards carries out duplication transmission.

As shown in figure 8, being the duplication schematic diagram of another transmission frame, it is based on BU, (Duplicate Indication=1, BW=BU=80) and practical PPDU structure indicated by (Duplicate Indication=0, BW=80) be it is identical, because This, not replicated PPDU structure can regard a kind of special case of duplication PPDU structure as.

In embodiment in front, resource allocation information is respectively positioned on media access control layer (English: Medium Access Control, referred to as: MAC), i.e., in the Data field of PPDU structure.In fact, resource allocation information is it is also possible to be located at physics In head, such as the HE-SIG-B in Fig. 9.It is located in HE-SIG-A at this point, BW, Duplicate Indication, BU are (optional), and And the duplication indicated by it is not the duplication of Data field, but the duplication of HE-SIG-B.

As another embodiment, duplication instruction information can also be including being used to indicate whether first to transmission frame At least one field after signaling field carries out at least two bits letter of the frequency domain bandwidth unit of frequency domain duplication and duplication Breath.For example, being indicated with two bit informations, indicate to replicate as unit of 20MHz if 00 indicates not replicate, 01,10 indicate It is replicated as unit of 40MHz, 11 indicate to replicate as unit of 40MHz.

It should be noted that, although be described above with scheduling of resource frame, but the scheme that designs of the present invention and not only limit In scheduling of resource frame, and it can be used for any transmission frame, to improve the reliability of its transmission.

For example, when multiple STA receive the ascending resource scheduling frame (Trigger) of AP, and with OFDMA or MU MIMO to AP After sending data, AP need to reply acknowledgement frame, i.e. ACK or BA to these STA.Due to the transmission of acknowledgement frame be not OFDMA or MIMO method is respectively sent to each STA, but single frames mode broadcast transmission (content in MAC layer, i.e., in Data field), is needed It is received by multiple STA, therefore its reliability is also especially important.At this point, the transmission of acknowledgement frame can also be used mode of the invention and send out It send.

The present invention is also not limited to multi-user transmission, can be the transmission between AP and single STA.

The sending method of the transmission frame provided according to embodiments of the present invention, transmitting terminal pass through the of transmission frame to be sent Duplication instruction message and bandwidth information are carried in one signaling field, information are indicated according to duplication, by the first signaling word of transmission frame At least one field after section carries out frequency field duplication as unit of specific bandwidth, so that the transmission frame after duplication is full of bandwidth Then transmission channel frequency bandwidth indicated by information sends the transmission after duplication on the transmission channel indicated by bandwidth information Frame enables receiving end reliably to receive the data in the field replicated in transmission frame, improves between transmitting terminal and receiving end Transmission frame in data transmission reliability field.

Referring to Fig. 10, being a kind of flow diagram of the method for reseptance of transmission frame provided in an embodiment of the present invention, the party Method the following steps are included:

Step S201 detects the duplication instruction information and bandwidth letter of the transmission frame in the first signaling field of transmission frame Breath.

It whether is detected on fundamental channels in the first signaling field of transmission frame first comprising duplication instruction information receiving end And bandwidth information, the transmission frame include the first signaling field, certainly thereafter further include data field etc..The duplication indicates that information can To include duplication instruction, it is used to indicate whether that one or more fields after the first signaling field to the transmission frame carry out frequency Domain duplication, duplication instruction information can also include at least one after the first signaling field of the transmission frame replicated The identification information of a field；The bandwidth information refers to the transmission channel frequency bandwidth that the transmission frame after duplication should be full of.Transmission frame The first signaling field after at least one field include: transmission frame the first signaling field after all fields, or, number According to field, or, the second signaling field, or, data field and the second signaling field.

Under normal conditions, when the integral multiple that the total bandwidth of transmission channel is greater than 20MHz and is 20MHz, the of transmitting terminal One signaling field and its all fields before are to carry out copy transmissions in frequency domain as unit of 20MHz, and the first signaling word Other fields after section, then transmitted in the way of indicated by the first signaling field.

Step S202 indicates information according to the duplication, receives on the transmission channel indicated by the bandwidth information multiple At least one copy of at least one field after first signaling field of the transmission frame after system, at least one described pair Each copy in this corresponds to a specific bandwidth in the transmission channel.

If at least one described field is as defined in agreement or both sides' offered, in bandwidth information meaning On the transmission channel shown, the one or more of at least one field after the first signaling field of the transmission frame after receiving duplication Copy.

If at least one described field is indicated by the identification information in duplication instruction information, believe in the bandwidth On the indicated transmission channel of breath, after the first signaling field of the transmission frame after receiving duplication indicated by the identification information At least one field one or more copies.

The specific bandwidth can be pre-set bandwidths, the i.e. bandwidth or agreement that have consulted in advance of transmitting terminal and receiving end Prespecified bandwidth, transmitting terminal can not need to notify receiving end again.

The duplication indicate information include specific bandwidth, the specific bandwidth be used to indicate by the first signaling field of transmission frame it At least one field afterwards carries out frequency domain bandwidth unit when frequency domain duplication.

Step S203, will receive described at least one copy be decoded.

Receiving end is decoded multiple copies of the copy field in the transmission frame received, specifically, using merging Technology merges these copies, then, is decoded to combined transmission frame, multiple so as to accurately and reliably receive The content of the field of system, to improve the reliability that data are transmitted in the transmission frame between transmitting terminal and receiving end.Merge skill Art can be any folding, such as selection combining, i.e. receiving end is received in specific bandwidth, such as the certain band Width is 20MHz, as long as any 20MHz decoding is correct, the frame transmission success；It is also possible to maximum-ratio combing, that is, receives End merges the copy for the field that duplication is received on multiple 20MHz, is then decoded, which kind of specifically merges skill using Art depends on the selection and realization of receiving end.Here specific bandwidth is also possible to be used to indicate the first letter of the transmission frame Frequency domain bandwidth unit when at least one field after field being enabled to carry out frequency domain duplication, followed by detailed description.

In concrete implementation, a kind of duplication schematic diagram of transmission frame as shown in Figure 3, transmission frame uses as shown in Figure 3 The structure of PPDU.The PPDU includes L-preamble, HE-SIG-A, HE-STF, HE-LTF and Data, can also include HE- SIG-B.At this in the specific implementation, in the first signaling field include BW and duplication instruction, for example, can be set BW be N × 20MHz, wherein transmitting terminal carries out frequency domain duplication, specific bandwidth to one or more fields after HE-SIG-A with specific bandwidth For 20MHz, herein, which is the bandwidth that pre-set bandwidths, i.e. transmitting terminal and receiving end have consulted in advance, or association Prespecified bandwidth is discussed, transmitting terminal can not need to notify receiving end again, and receiving end is according to the pre-set bandwidths of protocol conventions Receive the copy of the field of duplication.

It should be noted that N is not offered as the number of transmission channel here, it can be understood as be full of the transmission of N × 20MHz Channel frequency bandwidth needs to carry out n times duplication.Duplication instruction can be set to 0 or 1 or the mark that can identify of other both sides, One or more fields after the first signaling field in transmission frame are replicated for example, being set as 1 expression, are set as 0 Expression is not replicated.The duplication instruction message can be indicated to all fields such as HE-STF, HE- after the first signaling field LTF, HE-SIG-B and Data field are replicated, and also be can choose wherein one or more fields and are replicated.Specific duplication Which field, usually agreement in advance as defined in or transmitting terminal and receiving end offered.It is of course also possible in the first letter It enables in field and being explicitly identified, is i.e. believes in the first signaling field comprising carrying out the mark of one or more fields of frequency domain duplication Breath.Receiving end is decoded according to protocol conventions or according to multiple copies of the identification information to the field of the duplication received.

In Fig. 3, duplication instruction and BW are located in the first signaling field HE-SIG-A, and the field of transmission to be copied is located at number According to field, the data content in the data field for example can be resource allocation information.For example, the transmission frame is Trigger frame, It include scheduling information in data field.Certainly, if removing HE-SIG-B in above-mentioned PPDU structure, at this point, bandwidth and duplication refer to Show and is located in unique HE-SIG field.

It should be strongly noted that the instruction of bandwidth is not necessarily a value, and can due to that may use discontinuous frequency band It can be the bitmap of the frequency transmission subchannel of a composition current transmission channel, the duplication of another transmission frame as shown in Figure 4 Schematic diagram, wherein third 20MHz is not used, at this point, receiving end carries out that not used son should be excluded when reception or union operation Band.If bandwidth information is the bitmap for transmitting the transmission subchannel of transmission frame, all transmission subchannels of bitmap instruction are total The transmission channel of the transmission frame is transmitted with composition, then step S202 specifically: connect on the transmission channel indicated by the bitmap At least one copy of at least one field after first signaling field of the transmission frame after recovering system.

The embodiment of the present invention improves it, please refers to the duplication signal of Fig. 6 and another transmission frame shown in Fig. 7 Figure, as shown in fig. 6, it is a kind of twice that transmitting terminal is replicated in 80MHz bandwidth as unit of 40MHz when channel condition is preferable Better choice can reduce time-domain transmission duration, improve efficiency of transmission；Similarly, as shown in fig. 7, when channel condition is poor, hair Sending end carried out as unit of 20MHz duplication may be it is inadequate, carried out as unit of 10MHz duplication just can guarantee reliability.Cause This, replicate herein needed in instruction message include specific bandwidth information, which is used to indicate the of transmission frame When at least one field after one signaling field carries out frequency domain duplication frequency domain bandwidth unit (English: Bandwidth Unit, BU).Receiving end is decoded the copy of the field of the duplication received according to BU.Herein, when copy transmissions frame, because The bandwidth for the primary channel that transmitting terminal and receiving end consult is constant, for example, 20MHz, however, carrying out field duplication Specific frequency domain bandwidth unit can be more than or less than primary bandwidth unit, therefore, when replicating and sending transmission frame, L-premble It still remains unchanged with HE-SIG-A, using fundamental channel bandwidth 20MHz as unit copy transmissions, only field thereafter is replicated It sends.

As another embodiment, duplication instruction information can also be including being used to indicate whether first to transmission frame At least one field after signaling field carries out at least two bits letter of the frequency domain bandwidth unit of frequency domain duplication and duplication Breath.For example, being indicated with two bit informations, indicate to replicate as unit of 20MHz if 00 indicates not replicate, 01,10 indicate It is replicated as unit of 40MHz, 11 indicate to replicate as unit of 40MHz.Receiving end indicates information according to the duplication, to what is received The copy of the field of duplication is decoded.

The method of reseptance of the transmission frame provided according to embodiments of the present invention, transmitting terminal pass through the of transmission frame to be sent Duplication instruction message and bandwidth information are carried in one signaling field, information are indicated according to duplication, by the first signaling word of transmission frame At least one field after section carries out frequency domain duplication as unit of specific bandwidth, so that the transmission frame after duplication is believed full of bandwidth Then the indicated transmission channel frequency bandwidth of breath sends the transmission after duplication on the transmission channel indicated by bandwidth information Frame enables receiving end reliably to receive the data in the field replicated in transmission frame, improves between transmitting terminal and receiving end Transmission frame in data transmission reliability.

Figure 11 is please referred to, is a kind of structural schematic diagram of the sending device of transmission frame provided in an embodiment of the present invention, the dress Setting 1000 includes:

Generation unit 11 includes the transmission in the first signaling field of the transmission frame for generating a transmission frame The duplication instruction information and bandwidth information of frame.

Generation unit 11 generates a transmission frame to be transmitted, which includes the first signaling field, certainly thereafter also Including data field etc..Duplication instruction information and bandwidth information, duplication instruction letter is written in transmitting terminal in the first signaling field Breath may include duplication instruction, be used to indicate whether one or more fields after the first signaling field to the transmission frame into The duplication of line frequency domain；The transmission channel frequency bandwidth that transmission frame after bandwidth information instruction duplication should be full of.

Copied cells 12, for indicating information according to the duplication, after the first signaling field of the transmission frame At least one field carries out frequency domain duplication as unit of specific bandwidth, so that the transmission frame after duplication is full of the bandwidth information institute The transmission channel frequency bandwidth of instruction.

Copied cells 12 indicate information according to the duplication, and field to be copied is carried out to frequency domain as unit of specific bandwidth and is answered System, then, the transmission frame after duplication is full of transmission channel frequency bandwidth indicated by bandwidth information.For example, the specific bandwidth is 20MHz, transmission channel frequency bandwidth are 80MHz, then should be to one or more words after the first signaling field of the transmission frame Duan Jinhang tetra- times duplications, so that the transmission frame after duplication is full of the transmission channel frequency bandwidth of 80MHz.

Transmission unit 13, the transmission after the duplication is sent on the transmission channel indicated by the bandwidth information Frame.

The part or complete after the first signaling field in the generation of generation unit 11 transmission frame, 12 copy transmissions frame of copied cells After the completion of the preparation of portion's field, after transmission unit 13 sends the duplication on the transmission channel indicated by the bandwidth information Transmission frame, in this way, when receiving end is received, if detect has duplication instruction information and bandwidth in the first signaling field Information, then receiving end it was determined that the transmission frame received in transmission channel frequency bandwidth indicated by bandwidth information Multiple copies of at least one field after one signaling field are as unit of specific bandwidth in frequency domain copy transmissions, because This can be decoded multiple copies, specifically, be merged these copies using folding, then, to merging Transmission frame is decoded, so as to accurately and reliably receive duplication at least one field data content, to improve The reliability of data transmission in transmission frame between transmitting terminal and receiving end.Folding can be any merging skill Art, such as selection combining, maximum-ratio combing, selection and realization depending on receiving end.

In concrete implementation, a kind of duplication schematic diagram of transmission frame as shown in Figure 3, transmission frame uses as shown in Figure 3 Physical layer convergence process protocol Data Unit (physical layer convergence procedure protocol data Unit, PPDU) structure.The PPDU includes old pilot tone (L-preamble), the first signaling field (HE-SIG-A), Short Training Field (HE-STF), long training field (HE-LTF) and data field (Data) can also include the second signaling field (HE- SIG-B).At this in the specific implementation, including that bandwidth (English: Bandwidth, abbreviation: BW) and duplication refer in the first signaling field Show (duplicate indication), for example, it is N × 20MHz that BW, which can be set, wherein specific bandwidth 20MHz, at this In, which is that the bandwidth that pre-set bandwidths, i.e. transmitting terminal and receiving end have consulted in advance or agreement are prespecified Bandwidth, transmitting terminal can not need to notify receiving end again.It should be noted that N is not offered as the number of transmission channel here, It can be understood as the transmission channel frequency bandwidth full of N × 20MHz to need to carry out n times duplication.Duplication instruction can be set to 0 or 1 or the mark that can identify of other both sides, for example, being set as 1 expression to one after the first signaling field in transmission frame Or multiple fields are replicated, and are set as 0 expression and are not replicated.The duplication instruction message can be indicated to the first signaling word All fields such as HE-STF, HE-LTF, HE-SIG-B and Data field after section is replicated, and also can choose one of them Or multiple fields are replicated.Which field is specifically replicated, usually defined or transmitting terminal and receiving end are prior in advance for agreement Negotiate.It is of course also possible to be explicitly identified in the first signaling field, i.e. it is multiple comprising carrying out frequency domain in the first signaling field The identification information of one or more fields of system.Then, by the one or more after the first signaling field of above-mentioned 20MHzPPDU Field is replicated in the transmission channel frequency bandwidth of N × 20MHz, and is sent out in the transmission channel frequency bandwidth of N × 20MHz Transmission frame after sending duplication.For example, in Fig. 3 being replicated to Data field, BW=80MHz is then needed to Data field Duplication four times.In Fig. 3, duplication instruction and BW are located in the first signaling field HE-SIG-A, and the field of transmission to be copied is located at Data field, the data content in the data field for example can be resource allocation information.For example, the transmission frame is Trigger Frame includes scheduling information in data field.It is worth noting that transmission of three 20MHz compared to minimum 20MHz of high frequency, There may be phase rotatioies when its constellation mapping, in order to reduce peak-to-average power ratio (English: Peak to Average Power Ratio, referred to as: PAPR).This is general technology when band is wider than 20MHz transmission in Current standards, behind it is no longer special It does not emphasize.

The sending device of the transmission frame provided according to embodiments of the present invention, transmitting terminal pass through the of transmission frame to be sent Duplication instruction message and bandwidth information are carried in one signaling field, information are indicated according to duplication, by the first signaling word of transmission frame At least one field after section carries out frequency field duplication as unit of specific bandwidth, so that the transmission frame after duplication is full of bandwidth Then transmission channel frequency bandwidth indicated by information sends the transmission after duplication on the transmission channel indicated by bandwidth information Frame enables receiving end reliably to receive the data in the field replicated in transmission frame, improves between transmitting terminal and receiving end Transmission frame in data transmission reliability field.

Figure 12 is please referred to, is a kind of structural schematic diagram of the reception device of transmission frame provided in an embodiment of the present invention, the dress Setting 2000 includes:

Detection unit 21, for detected in the first signaling field of transmission frame the transmission frame duplication indicate information and Bandwidth information.

Whether detection unit 21 detects in the first signaling field of transmission frame on fundamental channels first comprising duplication instruction Information and bandwidth information, the transmission frame include the first signaling field, certainly thereafter further include data field etc..Duplication instruction letter Breath may include duplication instruction, be used to indicate whether one or more fields after the first signaling field to the transmission frame into The duplication of line frequency domain, duplication instruction information can also include after the first signaling field of the transmission frame replicated extremely The identification information of a few field；The bandwidth information refers to the transmission channel frequency bandwidth that the transmission frame after duplication should be full of.It passes At least one field after first signaling field of defeated frame includes: all fields after the first signaling field of transmission frame, Or, data field, or, the second signaling field, or, data field and the second signaling field.

Receiving unit 22 is used for according to duplication instruction information, on the transmission channel indicated by the bandwidth information Receive duplication after the transmission frame the first signaling field after at least one field at least one copy, it is described at least Each copy in one copy corresponds to a specific bandwidth in the transmission channel.

If at least one described field is as defined in agreement or both sides' offered, receiving unit 22 is in the band On transmission channel indicated by wide information, at least one field after the first signaling field of the transmission frame after replicating is received One or more copies.

If at least one described field is indicated by the identification information in duplication instruction information, receiving unit 22 On the transmission channel indicated by the bandwidth information, the first letter of the transmission frame after receiving duplication indicated by the identification information Enable one or more copies of at least one field after field.

First decoding unit 23 is decoded at least one copy described in receiving.

The multiple copies for the copy field in transmission frame that first decoding unit 23 receives receiving unit 22 solve Code, specifically, the first decoding unit 23 includes: combining unit and the second decoding unit, combining unit, the institute for will receive At least one copy is stated to merge；Second decoding unit, for being decoded to the transmission frame after the merging.Using merging Technology merges these copies, then, is decoded to combined transmission frame, multiple so as to accurately and reliably receive The content of the field of system, to improve the reliability that data are transmitted in the transmission frame between transmitting terminal and receiving end.Merge skill Art can be any folding, such as selection combining, i.e. receiving end is received in specific bandwidth, such as the certain band Width is 20MHz, as long as any 20MHz decoding is correct, the frame transmission success；It is also possible to maximum-ratio combing, that is, receives End merges the copy for the field that duplication is received on multiple 20MHz, is then decoded, which kind of specifically merges skill using Art depends on the selection and realization of receiving end.Here specific bandwidth is also possible to be used to indicate the first letter of the transmission frame Frequency domain bandwidth unit when at least one field after field being enabled to carry out frequency domain duplication, followed by detailed description.

It should be strongly noted that the instruction of bandwidth is not necessarily a value, and can due to that may use discontinuous frequency band It can be the bitmap of the frequency transmission subchannel of a composition current transmission channel, the duplication of another transmission frame as shown in Figure 4 Schematic diagram, wherein third 20MHz is not used, at this point, receiving end carries out that not used son should be excluded when reception or union operation Band.If bandwidth information is the bitmap for transmitting the transmission subchannel of transmission frame, all transmission subchannels of bitmap instruction are total The transmission channel of the transmission frame is transmitted with composition, then receiving unit 22 is specifically used for: the transmission channel indicated by the bitmap At least one copy of at least one field after upper the first signaling field for receiving the transmission frame after duplication.

The reception device of the transmission frame provided according to embodiments of the present invention, transmitting terminal pass through the of transmission frame to be sent Duplication instruction message and bandwidth information are carried in one signaling field, information are indicated according to duplication, by the first signaling word of transmission frame At least one field after section carries out frequency domain duplication as unit of specific bandwidth, so that the transmission frame after duplication is believed full of bandwidth Then the indicated transmission channel frequency bandwidth of breath sends the transmission after duplication on the transmission channel indicated by bandwidth information Frame enables receiving end reliably to receive the data in the field replicated in transmission frame, improves between transmitting terminal and receiving end Transmission frame in data transmission reliability.

Figure 13 is please referred to, is a kind of structural schematic diagram of the sending device of transmission frame provided in an embodiment of the present invention, the hair Sending equipment 3000 includes: processor 31 and transmitter 32；

As an implementation, the duplication instruction information includes duplication instruction；

As another embodiment, the specific bandwidth is pre-set bandwidths.

As another embodiment, the duplication instruction information includes the specific bandwidth；

As another embodiment, the duplication instruction information further includes the first letter of the transmission frame replicated Enable the identification information of at least one field after field.

As another embodiment, the bandwidth information is to be used for transmission the position of the transmission subchannel of the transmission frame All transmission subchannels of figure, the bitmap instruction collectively constitute the transmission channel for transmitting the transmission frame.

As another embodiment, at least one field after the first signaling field of the transmission frame includes: institute All fields after the first signaling field of transmission frame are stated, or, data field, or, the second signaling field, or, data field With the second signaling field.

As another embodiment, the duplication instruction information includes first be used to indicate whether to the transmission frame At least one field after signaling field carries out at least two bits letter of the frequency domain bandwidth unit of frequency domain duplication and duplication Breath.

Figure 14 is please referred to, is a kind of structural schematic diagram of the receiving device of transmission frame provided in an embodiment of the present invention, this connects Receiving unit 4000 includes: processor 41 and receiver 42；

As another embodiment, the specific bandwidth is pre-set bandwidths.

As another embodiment, the bandwidth information is to be used for transmission the position of the transmission subchannel of the transmission frame All transmission subchannels of figure, the bitmap instruction collectively constitute the transmission channel for transmitting the transmission frame, the reception utensil Body is used for:

As another embodiment, the processor execute it is described will receive described at least one copy solve The step of code, comprising:

At least one copy described in receiving merges；

Transmission frame after the merging is decoded.

The receiving device of the transmission frame provided according to embodiments of the present invention, transmitting terminal pass through the of transmission frame to be sent Duplication instruction message and bandwidth information are carried in one signaling field, information are indicated according to duplication, by the first signaling word of transmission frame At least one field after section carries out frequency domain duplication as unit of specific bandwidth, so that the transmission frame after duplication is believed full of bandwidth Then the indicated transmission channel frequency bandwidth of breath sends the transmission after duplication on the transmission channel indicated by bandwidth information Frame enables receiving end reliably to receive the data in the field replicated in transmission frame, improves between transmitting terminal and receiving end Transmission frame in data transmission reliability.

It should be noted that for the various method embodiments described above, for simple description, therefore, it is stated as a series of Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the sequence of acts described because According to the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know It knows, the embodiments described in the specification are all preferred embodiments, and related actions and modules is not necessarily of the invention It is necessary.

In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment Point, reference can be made to the related descriptions of other embodiments.

The steps in the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.

Unit in the device of that embodiment of the invention can be combined, divided and deleted according to actual needs.This field The feature of different embodiments described in this specification and different embodiments can be combined or be combined by technical staff.

Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be with It is realized with hardware realization or firmware realization or their combination mode.It when implemented in software, can be by above-mentioned function Storage in computer-readable medium or as on computer-readable medium one or more instructions or code transmitted.Meter Calculation machine readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to another Any medium of a place transmission computer program.Storage medium can be any usable medium that computer can access.With For this but be not limited to: computer-readable medium may include random access memory (Random Access Memory, RAM), read-only memory (Read-Only Memory, ROM), Electrically Erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), CD-ROM (Compact Disc Read- Only Memory, CD-ROM) or other optical disc storages, magnetic disk storage medium or other magnetic storage apparatus or can be used in Carry or storage have instruction or data structure form desired program code and can by computer access any other Medium.Furthermore.Any connection appropriate can become computer-readable medium.For example, if software is using coaxial cable, light Fine optical cable, twisted pair, Digital Subscriber Line (Digital Subscriber Line, DSL) or such as infrared ray, radio and The wireless technology of microwave etc is transmitted from website, server or other remote sources, then coaxial cable, optical fiber cable, double The wireless technology of twisted wire, DSL or such as infrared ray, wireless and microwave etc includes in the fixing of affiliated medium.Such as this hair Used in bright, disk (Disk) and dish (disc) include compress optical disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), Floppy disk and Blu-ray Disc, the usually magnetic replicate data of which disk, and dish is then with laser come optical replicate data.Group above Conjunction should also be as including within the protection scope of computer-readable medium.

In short, being not intended to limit of the invention the foregoing is merely the preferred embodiment of technical solution of the present invention Protection scope.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in Within protection scope of the present invention.

Claims

1. a kind of sending method of transmission frame characterized by comprising

Generate a transmission frame, duplication instruction information and band comprising the transmission frame in the first signaling field of the transmission frame Wide information；

Information is indicated according to the duplication, by least one field after the first signaling field of the transmission frame with certain band Width is that unit carries out frequency domain duplication, so that the transmission frame after duplication is full of transmission channel frequency band indicated by the bandwidth information It is wide；

2. the method as described in claim 1, which is characterized in that the duplication instruction information includes duplication instruction；

The duplication instruction is used to indicate whether that at least one field after the first signaling field to the transmission frame carries out Frequency domain duplication.

3. method according to claim 1 or 2, which is characterized in that the specific bandwidth is pre-set bandwidths.

4. method according to claim 1 or 2, which is characterized in that the duplication instruction information includes the specific bandwidth；

Wherein, the specific bandwidth is used to indicate at least one field progress after the first signaling field by the transmission frame Frequency domain bandwidth unit when frequency domain replicates.

5. method according to claim 1 or 2, which is characterized in that the duplication instruction information further includes the institute replicated State the identification information of at least one field after the first signaling field of transmission frame.

6. method according to claim 1 or 2, which is characterized in that the bandwidth information is to be used for transmission the transmission frame Transmission subchannel bitmap, all transmission subchannels of bitmap instruction, which collectively constitute, transmit the transmission of the transmission frame and believes Road.

7. method according to claim 1 or 2, which is characterized in that after the first signaling field of the transmission frame at least One field includes: all fields after the first signaling field of the transmission frame, or, data field, or, the second signaling word Section, or, data field and the second signaling field.

8. the method as described in claim 1, which is characterized in that the duplication instruction information includes being used to indicate whether to described The frequency domain bandwidth unit of the progress frequency domain duplication of at least one field and duplication after first signaling field of transmission frame is extremely Few two bit informations.

9. a kind of method of reseptance of transmission frame characterized by comprising

Information is indicated according to the duplication, and the transmission after duplication is received on the transmission channel indicated by the bandwidth information At least one copy of at least one field after first signaling field of frame, each copy at least one described copy A specific bandwidth in the corresponding transmission channel；

At least one copy described in receiving is decoded.

10. method as claimed in claim 9, which is characterized in that the duplication instruction information includes duplication instruction；

11. the method as described in claim 9 or 10, which is characterized in that the specific bandwidth is pre-set bandwidths.

12. the method as described in claim 9 or 10, which is characterized in that the duplication instruction information includes the specific bandwidth；

13. the method as described in claim 9 or 10, which is characterized in that the duplication instruction information further includes being replicated The identification information of at least one field after first signaling field of the transmission frame.

14. the method as described in claim 9 or 10, which is characterized in that the bandwidth information is to be used for transmission the transmission frame Transmission subchannel bitmap, all transmission subchannels of bitmap instruction, which collectively constitute, transmit the transmission of the transmission frame and believes Road, it is described that information is indicated according to the duplication, receive on the transmission channel indicated by the bandwidth information after duplication described in At least one copy of at least one field after first signaling field of transmission frame, comprising:

After first signaling field of the transmission frame after receiving the duplication on the transmission channel indicated by the bitmap At least one field at least one copy.

15. method as claimed in claim 9, which is characterized in that the duplication instruction information includes being used to indicate whether to institute State the frequency domain bandwidth unit that at least one field after the first signaling field of transmission frame carries out frequency domain duplication and duplication At least two bit informations.

16. the method as described in claim 9 or 10, which is characterized in that after the first signaling field of the transmission frame extremely A few field includes: all fields after the first signaling field of the transmission frame, or, data field, or, the second signaling Field, or, data field and the second signaling field.

17. the method as described in claim 9 or 10, which is characterized in that it is described will receive described at least one copy into Row decoding, comprising:

At least one copy described in receiving merges；

Transmission frame after the merging is decoded.

18. a kind of sending device of transmission frame characterized by comprising

Generation unit, for generating a transmission frame, answering comprising the transmission frame in the first signaling field of the transmission frame System instruction information and bandwidth information；

Copied cells, for indicating information according to the duplication, by least one after the first signaling field of the transmission frame A field carries out frequency domain duplication as unit of specific bandwidth, so that the transmission frame after duplication is full of indicated by the bandwidth information Transmission channel frequency bandwidth；

19. sending device as claimed in claim 18, which is characterized in that the duplication instruction information includes duplication instruction；

20. the sending device as described in claim 18 or 19, which is characterized in that the specific bandwidth is pre-set bandwidths.

21. the sending device as described in claim 18 or 19, which is characterized in that the duplication instruction information includes described specific Bandwidth；

22. the sending device as described in claim 18 or 19, which is characterized in that the duplication instruction information further includes being answered The identification information of at least one field after first signaling field of the transmission frame of system.

23. the sending device as described in claim 18 or 19, which is characterized in that the bandwidth information is to be used for transmission the biography All transmission subchannels of the bitmap of the transmission subchannel of defeated frame, the bitmap instruction collectively constitute the transmission transmission frame Transmission channel.

24. the sending device as described in claim 18 or 19, which is characterized in that after the first signaling field of the transmission frame At least one field include: the transmission frame the first signaling field after all fields, or, data field, or, second Signaling field, or, data field and the second signaling field.

25. sending device as claimed in claim 18, which is characterized in that the duplication instruction information includes being used to indicate whether The frequency domain bandwidth list of frequency domain duplication and duplication is carried out at least one field after the first signaling field of the transmission frame At least two bit informations of position.

26. a kind of reception device of transmission frame characterized by comprising

Detection unit, the duplication for detecting the transmission frame in the first signaling field of transmission frame indicate information and bandwidth letter Breath；

Receiving unit receives multiple for indicating information according to the duplication on the transmission channel indicated by the bandwidth information At least one copy of at least one field after first signaling field of the transmission frame after system, at least one described pair Each copy in this corresponds to a specific bandwidth in the transmission channel；

First decoding unit is decoded at least one copy described in receiving.

27. reception device as claimed in claim 26, which is characterized in that the duplication instruction information includes duplication instruction；

28. the reception device as described in claim 26 or 27, which is characterized in that the specific bandwidth is pre-set bandwidths.

29. the reception device as described in claim 26 or 27, which is characterized in that the duplication instruction information includes described specific Bandwidth；

30. the reception device as described in claim 26 or 27, which is characterized in that the duplication instruction information further includes being answered The identification information of at least one field after first signaling field of the transmission frame of system.

31. the reception device as described in claim 26 or 27, which is characterized in that the bandwidth information is to be used for transmission the biography All transmission subchannels of the bitmap of the transmission subchannel of defeated frame, the bitmap instruction collectively constitute the biography for transmitting the transmission frame Defeated channel, the reception device are specifically used for:

32. reception device as claimed in claim 26, which is characterized in that the duplication instruction information includes being used to indicate whether The frequency domain bandwidth list of frequency domain duplication and duplication is carried out at least one field after the first signaling field of the transmission frame At least two bit informations of position.

33. the reception device as described in claim 26 or 27, which is characterized in that after the first signaling field of the transmission frame At least one field include: the transmission frame the first signaling field after all fields, or, data field, or, second Signaling field, or, data field and the second signaling field.

34. the reception device as described in claim 26 or 27, which is characterized in that first decoding unit includes:

Combining unit is merged at least one copy described in receiving；

35. a kind of sending device of transmission frame characterized by comprising processor and transmitter；

The processor is for generating a transmission frame, answering comprising the transmission frame in the first signaling field of the transmission frame System instruction information and bandwidth information；

The processor be also used to according to the duplication indicate information, by after the first signaling field of the transmission frame at least One field carries out frequency domain duplication as unit of specific bandwidth, so that the transmission frame after duplication is full of indicated by the bandwidth information Transmission channel frequency bandwidth；

36. sending device as claimed in claim 35, which is characterized in that the duplication instruction information includes duplication instruction；

37. the sending device as described in claim 35 or 36, which is characterized in that the specific bandwidth is pre-set bandwidths.

38. the sending device as described in claim 35 or 36, which is characterized in that the duplication instruction information includes described specific Bandwidth；

39. the sending device as described in claim 35 or 36, which is characterized in that the duplication instruction information further includes being answered The identification information of at least one field after first signaling field of the transmission frame of system.

40. the sending device as described in claim 35 or 36, which is characterized in that the bandwidth information is to be used for transmission the biography All transmission subchannels of the bitmap of the transmission subchannel of defeated frame, the bitmap instruction collectively constitute the transmission transmission frame Transmission channel.

41. the sending device as described in claim 35 or 36, which is characterized in that after the first signaling field of the transmission frame At least one field include: the transmission frame the first signaling field after all fields, or, data field, or, second Signaling field, or, data field and the second signaling field.

42. sending device as claimed in claim 35, which is characterized in that the duplication instruction information includes being used to indicate whether The frequency domain bandwidth list of frequency domain duplication and duplication is carried out at least one field after the first signaling field of the transmission frame At least two bit informations of position.

43. a kind of receiving device of transmission frame characterized by comprising processor and receiver；

The processor is used to detect the duplication instruction information and bandwidth of the transmission frame in the first signaling field of transmission frame Information；

The receiver is used to indicate information according to the duplication, receives on the transmission channel indicated by the bandwidth information multiple At least one copy of at least one field after first signaling field of the transmission frame after system, at least one described pair Each copy in this corresponds to a specific bandwidth in the transmission channel；

44. receiving device as claimed in claim 43, which is characterized in that the duplication instruction information includes duplication instruction；

45. the receiving device as described in claim 43 or 44, which is characterized in that the specific bandwidth is pre-set bandwidths.

46. the receiving device as described in claim 43 or 44, which is characterized in that the duplication instruction information includes described specific Bandwidth；

47. the receiving device as described in claim 43 or 44, which is characterized in that the duplication instruction information further includes being answered The identification information of at least one field after first signaling field of the transmission frame of system.

48. the receiving device as described in claim 43 or 44, which is characterized in that the bandwidth information is to be used for transmission the biography All transmission subchannels of the bitmap of the transmission subchannel of defeated frame, the bitmap instruction collectively constitute the biography for transmitting the transmission frame Defeated channel, the receiver are specifically used for:

49. receiving device as claimed in claim 43, which is characterized in that the duplication instruction information includes being used to indicate whether The frequency domain bandwidth list of frequency domain duplication and duplication is carried out at least one field after the first signaling field of the transmission frame At least two bit informations of position.

50. the receiving device as described in claim 43 or 44, which is characterized in that after the first signaling field of the transmission frame At least one field include: the transmission frame the first signaling field after all fields, or, data field, or, second Signaling field, or, data field and the second signaling field.

51. the receiving device as described in claim 43 or 44, which is characterized in that the processor is executed and described will be received The step of at least one described copy is decoded, comprising:

At least one copy described in receiving merges；

Transmission frame after the merging is decoded.