CN106464709A

CN106464709A - Method, apparatus and device for sending and receiving transmission frame

Info

Publication number: CN106464709A
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: 2017-02-22
Anticipated expiration: 2034-12-29
Also published as: WO2016106489A1; CN106464709B

Abstract

Disclosed are a method, apparatus and device for sending and receiving a transmission frame. A sending end carries a replication indication message and bandwidth information in a first signaling field of a transmission frame to be sent; the sending end performs frequency domain replication on at least one field following the first signaling field of the transmission frame in a unit of a specific bandwidth according to the replication indication information, so that the transmission frame after replication is filled with a transmission channel frequency bandwidth indicated by the bandwidth information; and then the sending end sends the transmission frame after replication on a transmission channel indicated by the bandwidth information. In this way, a receiving end can reliably receive data in the replicated field in the transmission frame, thereby improving transmission reliability of data in the transmission frame between the sending end and the receiving end.

Description

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

Technical field

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

Background technology

Access point (English：Access Point, referred to as：AP) with one or more websites (English under AP：Station, referred to as：When the transmission of frame is transmitted between STA), some STA are probably due to the reason such as channel can not be accurately received the transmission frame of AP transmissions, and AP is also possible to that the transmission frame of STA transmissions can not be accurately received.

For example, in OFDM (English：Orthogonal Frequency Division Multiple Access, referred to as：OFDMA) in mechanism, AP needs to transmit trigger frame (Trigger frames) to multiple STA to be scheduled first, to distribute these STA uplink or the resource of downlink reception, i.e. AP, while dispatching multiple STA, upstream or downstream are transmitted on different subchannels.AP sends Trigger frames, wherein including follow-up multiple STA up-downgoing resource scheduling information；Contents of the scheduled STA in Trigger frames was transmitted or received on corresponding time and frequency range.Certainly, Trigger frames also can a dispatching uplink (UL-only), or only dispatching downlink (DL-only), or dispatch up-downgoing simultaneously.In uplink multi-users multiple-input, multiple-output (English：Multiple Input Multiple Output, referred to as：MIMO) in mechanism, multiple users are simultaneously same to keep pouring in defeated, but each user uses not cocurrent flow.This needs also exist for the prior scheduling resources of AP with transmission technology, that is, is also required to Trigger frames.

No matter in OFDMA or MIMO, the reception object of Trigger frames is all multiple users to be scheduled.If which part user fails to be properly received Trigger frames, all scheduling for being subsequently directed to the user are all invalid, and corresponding resource go wasted, therefore, and the reliability for improving Trigger frames seems especially important.

So, Trigger frames transmit whether insecure problem often occursIn current 802.11 standard, AP can announce a specific 20MHz primary channel (primary channel) to its association user, and each user generally only intercepts the primary channel.Only when hearing the notice subsequently using broader bandwidth on fundamental channels, subsequently just broader bandwidth can be expanded to up.But no matter which kind of bandwidth is used, primary channel must be all included in.Based on this principle, the transmission frequency band of Trigger frames must also include primary channel.And in 802.11ax equipment dense distribution scenes, because user to be scheduled is located at diverse location, each user's Interference environment differs widely：On fundamental channels, some users measure interference very little, and some users are very big.For the latter, it is difficult to be properly received Trigger frames.Therefore, because the presence of equipment dense distribution and primary channel, it is larger that Trigger frames transmit insecure probability.

Only illustrate to transmit insecure problem between AP and STA by taking Trigger frames as an example above, in fact in the transmission for transmitting any frame of insecure problem exists in, therefore, need to improve the reliability of the frame transmission between access point and website, simply in multicast scene as similar Trigger frames, the transmission reliability problem of frame seems especially prominent.

Generally, the method for improving frame transmission reliability is using lower modulation coding mode (English：Modulation and Coding Scheme, referred to as：MCS), i.e. lower modulation rate and channel coding code check.For example, minimum MCS is that MCS0, i.e. code check are that 1/2, modulation system is binary phase shift keying (English in 802.11ac：Binary Phase Shift Keying, referred to as：BPSK)；And in 802.11ah, it is proposed that a kind of MCS of more low order, i.e., repeat the result of MCS0 modulating-coding, so as to strengthen reliability.However, this more low order MCS essence is to introduce more redundancies to exchange the raising of reliability for, but the data that need to be transmitted can be caused to increase, transmission time is longer, reduces efficiency of transmission.

A kind of non-HT duplicate transmission means is proposed in 802.11n, as shown in Figure 1.20MHz transmission frame is built first, is then replicated, then sent in multiple 20MHz channels.Non-HT duplicate purpose is to preengage compared with wide channels.For example, when a 802.11ac equipment is intended to be transmitted to another 802.11ac equipment using 80MHz, 4 requests will be sent in non-HT duplicate modes on 80MHz channels and send (English：Request to Send, referred to as：RTS) frame.Other any third party devices (this cell or adjacent cell) are when the primary channel (primary channel of different districts may be different) of oneself hears the RTS, it may know that other side will use the channel time below, then competitive channel would not be actively removed, in case the transmission to other side is interfered.It should be noted that, non-HT duplicate do not have the ability for improving transmission reliability, because for one receives user, when it receives a transmission frame on some 20MHz channel, it is that can not know whether the frame also replicates on other channels, and is replicated on which channel.Therefore, even if transmitting terminal really replicates the frame on multiple 20MHz, receiving terminal also can not merge to improve reliability using these copies.

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

The content of the invention

The embodiments of the invention provide the sending, receiving method of transmission frame and device, equipment, to improve the reliability of the transmission of the frame between transmitting terminal and receiving terminal.

First aspect there is provided a kind of sending method of transmission frame, including：

Generate the duplication configured information and bandwidth information for including the transmission frame in a transmission frame, the first signaling field of the transmission frame；

According to the duplication configured information, at least one field after the first signaling field of the transmission frame is subjected to frequency domain duplication in units of specific bandwidth so that the transmission frame after duplication is full of the transmission channel frequency bandwidth indicated by the bandwidth information；

The transmission frame after the duplication is sent on the transmission channel indicated by the bandwidth information.

In the first possible implementation, the duplication configured information, which includes replicating, to be indicated；

Described replicate indicates to be used to indicate whether that at least one field after the first signaling field to the transmission frame carries out frequency domain duplication.

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

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

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

With reference to the third possible implementation of second possible implementation or first aspect of the first possible implementation or first aspect of first aspect or first aspect, in the 4th kind of possible implementation, the identification information of at least one field after first signaling field for replicating configured information also including the transmission frame replicated.

With reference to the 4th kind of possible implementation of the third possible implementation or first aspect of second possible implementation or first aspect of the first possible implementation or first aspect of first aspect or first aspect, in the 5th kind of possible implementation, the bandwidth information is that, for the bitmap for the transmission subchannel for transmitting the transmission frame, all transmission subchannels that the bitmap is indicated collectively constitute the transmission channel for transmitting the transmission frame.

The 4th kind with reference to the third possible implementation or first aspect of second possible implementation or first aspect of the first possible implementation or first aspect of first aspect or first aspect can The implementation of energy or the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation, at least one field after the first signaling field of the transmission frame includes：All fields after 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, described at least one field for replicating configured information and including being used to indicate whether after the first signaling field to the transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.

Second aspect there is provided a kind of method of reseptance of transmission frame, including：

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

According to the duplication configured information, a specific bandwidth in each copy correspondence transmission channel at least one copy of at least one field after first signaling field of the transmission frame after reception is replicated on the transmission channel indicated by the bandwidth information, at least one described copy；

At least one copy is decoded described in receiving.

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

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

With reference to the third possible implementation of second possible implementation or second aspect of the first possible implementation or second aspect of second aspect or second aspect, in the 4th kind of possible implementation, the identification information of at least one field after first signaling field for replicating configured information also including the transmission frame replicated.

With reference to the 4th kind of possible implementation of the third possible implementation or second aspect of second possible implementation or second aspect of the first possible implementation or second aspect of second aspect or second aspect, in the 5th kind of possible implementation, the bandwidth information is for transmitting the biography The bitmap of the transmission subchannel of defeated frame, all transmission subchannels that the bitmap is indicated collectively constitute the transmission channel for transmitting the transmission frame, it is described according to the duplication configured information, at least one copy of at least one field after first signaling field of the transmission frame after reception is replicated on the transmission channel indicated by the bandwidth information, including：

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

With reference to second aspect, in the 6th kind of possible implementation, described at least one field for replicating configured information and including being used to indicate whether after the first signaling field to the transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.

With reference to the 6th kind of possible implementation of the 5th kind of possible implementation or second aspect of the 4th kind of possible implementation or second aspect of the third possible implementation or second aspect of second possible implementation or second aspect of the first possible implementation or second aspect of second aspect or second aspect, in the 7th kind of possible implementation, at least one field after the first signaling field of the transmission frame includes：All fields after 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 the 7th kind of possible implementation of the 6th kind of possible implementation or second aspect of the 5th kind of possible implementation or second aspect of the 4th kind of possible implementation or second aspect of the third possible implementation or second aspect of second possible implementation or second aspect of the first possible implementation or second aspect of second aspect or second aspect, in the 8th kind of possible implementation, it is described will receive described at least one copy decoded, including：

At least one copy is merged described in receiving；

Transmission frame after the merging is decoded.

The third aspect there is provided a kind of dispensing device of transmission frame, including：

Generation unit, for generating the duplication configured information and bandwidth information that include the transmission frame in a transmission frame, the first signaling field of the transmission frame；

Copied cells, for according to the duplication configured information, at least one field after first signaling field of the transmission frame is subjected to frequency domain duplication in units of specific bandwidth so that the transmission frame after duplication is full of the transmission channel frequency bandwidth indicated by the bandwidth information；

Transmitting element, for sending the biography after the duplication on the transmission channel indicated by the bandwidth information Defeated frame.

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

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

With reference to the third possible implementation of second possible implementation or the third aspect of the first possible implementation or the third aspect of the third aspect or the third aspect, in the 4th kind of possible implementation, the identification information of at least one field after first signaling field for replicating configured information also including the transmission frame replicated.

With reference to the third possible implementation of second possible implementation or the third aspect of the first possible implementation or the third aspect of the third aspect or the third aspect, in the 4th kind of possible implementation, the bandwidth information is that, for the bitmap for the transmission subchannel for transmitting the transmission frame, all transmission subchannels that the bitmap is indicated collectively constitute the transmission channel for transmitting the transmission frame.

With reference to the 5th kind of possible implementation of the 4th kind of possible implementation or the third aspect of the third possible implementation or the third aspect of second possible implementation or the third aspect of the first possible implementation or the third aspect of the third aspect or the third aspect, in the 6th kind of possible implementation, at least one field after the first signaling field of the transmission frame includes：All fields after 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 the third aspect, in the 7th kind of possible implementation, described at least one field for replicating configured information and including being used to indicate whether after the first signaling field to the transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.

Fourth aspect there is provided a kind of reception device of transmission frame, including：

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

Receiving unit, for according to the duplication configured information, a specific bandwidth in each copy correspondence transmission channel at least one copy of at least one field after first signaling field of the transmission frame after reception is replicated on the transmission channel indicated by the bandwidth information, at least one described copy；

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

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

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

With reference to the third possible implementation of second possible implementation or fourth aspect of the first possible implementation or fourth aspect of fourth aspect or fourth aspect, in the 4th kind of possible implementation, the identification information of at least one field after first signaling field for replicating configured information also including the transmission frame replicated.

With reference to the 4th kind of possible implementation of the third possible implementation or fourth aspect of second possible implementation or fourth aspect of the first possible implementation or fourth aspect of fourth aspect or fourth aspect, in the 5th kind of possible implementation, the bandwidth information is for the bitmap for the transmission subchannel for transmitting the transmission frame, all transmission subchannels that the bitmap is indicated collectively constitute the transmission channel for transmitting the transmission frame, the reception device specifically for：

With reference to fourth aspect, in the 6th kind of possible implementation, described at least one field for replicating configured information and including being used to indicate whether after the first signaling field to the transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.

With reference to the 6th kind of possible implementation of the 5th kind of possible implementation or fourth aspect of the 4th kind of possible implementation or fourth aspect of the third possible implementation or fourth aspect of second possible implementation or fourth aspect of the first possible implementation or fourth aspect of fourth aspect or fourth aspect, in the 7th kind of possible implementation, at least one field after the first signaling field of the transmission frame includes：All fields after 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 the 7th kind of possible implementation of the 6th kind of possible implementation or fourth aspect of the 5th kind of possible implementation or fourth aspect of the 4th kind of possible implementation or fourth aspect of the third possible implementation or fourth aspect of second possible implementation or fourth aspect of the first possible implementation or fourth aspect of fourth aspect or fourth aspect, 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.

There is provided a kind of transmission equipment of transmission frame in terms of 5th, including：Processor and transmitter；

The processor is used to generate the duplication configured information and bandwidth information for including the transmission frame in a transmission frame, the first signaling field of the transmission frame；

The processor is additionally operable to according to the duplication configured information, at least one field after first signaling field of the transmission frame is subjected to frequency domain duplication in units of specific bandwidth so that the transmission frame after duplication is full of the transmission channel frequency bandwidth indicated by the bandwidth information；

The transmitter is used to send the transmission frame after the duplication on the transmission channel indicated by the bandwidth information.

With reference to the 5th aspect or the first possible implementation of the 5th aspect, in second of possible implementation, the specific bandwidth is pre-set bandwidths.

With reference to the 5th aspect or the first possible implementation of the 5th aspect, in the third possible implementation, the duplication configured information includes the specific bandwidth；

Wherein, the specific bandwidth is used to indicate at least one after the first signaling field of the transmission frame Individual field carries out frequency domain bandwidth unit during frequency domain duplication.

With reference to second of possible implementation or the third possible implementation of the 5th aspect of the first possible implementation or the 5th aspect of the 5th aspect or the 5th aspect, in the 4th kind of possible implementation, the identification information of at least one field after first signaling field for replicating configured information also including the transmission frame replicated.

With reference to second of possible implementation of the first possible implementation or the 5th aspect of the 5th aspect or the 5th aspect or the third possible implementation of the 5th aspect or the 4th kind of possible implementation of the 5th aspect, in the 5th kind of possible implementation, the bandwidth information is that, for the bitmap for the transmission subchannel for transmitting the transmission frame, all transmission subchannels that the bitmap is indicated collectively constitute the transmission channel for transmitting the transmission frame.

With reference to second of possible implementation or the 5th kind of possible implementation of the third possible implementation of the 5th aspect or the 4th kind of possible implementation of the 5th aspect or the 5th aspect of the first possible implementation or the 5th aspect of the 5th aspect or the 5th aspect, in the 6th kind of possible implementation, at least one field after the first signaling field of the transmission frame includes：All fields after 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 the 5th aspect, in the 7th kind of possible implementation, described at least one field for replicating configured information and including being used to indicate whether after the first signaling field to the transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.

There is provided a kind of receiving device of transmission frame in terms of 6th, including：Processor and receiver；

The processor is used for the duplication configured information and bandwidth information that the transmission frame is detected in the first signaling field of transmission frame；

The receiver is used for according to the duplication configured information, a specific bandwidth in each copy correspondence transmission channel at least one copy of at least one field after first signaling field of the transmission frame after reception is replicated on the transmission channel indicated by the bandwidth information, at least one described copy；

The processor be additionally operable to receive described at least one copy decoded.

Described replicate indicates to be used to indicate whether at least one after the first signaling field to the transmission frame Individual field carries out frequency domain duplication.

With reference to the 6th aspect or the first possible implementation of the 6th aspect, in second of possible implementation, the specific bandwidth is pre-set bandwidths.

With reference to the 6th aspect or the first possible implementation of the 6th aspect, in the third possible implementation, the duplication configured information includes the specific bandwidth；

With reference to second of possible implementation or the third possible implementation of the 6th aspect of the first possible implementation or the 6th aspect of the 6th aspect or the 6th aspect, in the 4th kind of possible implementation, the identification information of at least one field after first signaling field for replicating configured information also including the transmission frame replicated.

With reference to second of possible implementation of the first possible implementation or the 6th aspect of the 6th aspect or the 6th aspect or the third possible implementation of the 6th aspect or the 4th kind of possible implementation of the 6th aspect, in the 5th kind of possible implementation, the bandwidth information is for the bitmap for the transmission subchannel for transmitting the transmission frame, all transmission subchannels that the bitmap is indicated collectively constitute the transmission channel for transmitting the transmission frame, the receiver specifically for：

With reference to the 6th aspect, in the 6th kind of possible implementation, described at least one field for replicating configured information and including being used to indicate whether after the first signaling field to the transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.

With reference to the 6th aspect or the 6th aspect the first possible implementation the 6th aspect second of possible implementation or the 6th aspect the third possible implementation the 6th aspect the 4th kind of possible implementation or the 6th aspect the 5th kind of possible implementation or the 6th aspect the 6th kind of possible implementation, in the 7th kind of possible implementation, at least one field after the first signaling field of the transmission frame includes：All fields after 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 the 6th aspect or the 6th aspect the first possible implementation the 6th aspect second of possible implementation or the 6th aspect the third possible implementation the 6th aspect the 4th kind of possible implementation or the 6th aspect the 5th kind of possible implementation or the 6th aspect the 6th kind of possibility Implementation or the 6th aspect the 7th kind of possible implementation, will be received in the 8th kind of possible implementation, described in the computing device described at least one copy the step of decoded, including：

At least one copy is merged described in receiving；

Transmission frame after the merging is decoded.

It can be seen that, using the transmission of transmission frame provided in an embodiment of the present invention, method of reseptance and device, equipment, transmitting terminal indicates message and bandwidth information by carrying to replicate in the first signaling field of transmission frame to be sent, according to duplication configured information, at least one field after first signaling field of transmission frame is subjected to frequency domain duplication in units of specific bandwidth, so that the transmission frame after replicating is full of the transmission channel frequency bandwidth indicated by bandwidth information, then the transmission frame after replicating is sent on the transmission channel indicated by bandwidth information, receiving terminal 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 terminal.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

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

Fig. 2 is a kind of schematic flow sheet 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 schematic flow sheet of the method for reseptance of transmission frame provided in an embodiment of the present invention；

Figure 11 is a kind of structural representation of the dispensing device of transmission frame provided in an embodiment of the present invention；

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

Figure 13 is a kind of structural representation of the transmission equipment of transmission frame provided in an embodiment of the present invention；

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

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

Referring to Fig. 2, for a kind of schematic flow sheet of the sending method of transmission frame provided in an embodiment of the present invention, this method comprises the following steps：

Step S101, generates the duplication configured information and bandwidth information for including the transmission frame in a transmission frame, the first signaling field of the transmission frame.

In embodiments of the present invention, transmitting terminal can be AP, then receiving terminal is one or more STA, transmitting terminal can also be STA, then receiving terminal is AP, and transmitting terminal and receiving terminal can consult a primary channel, for example, in current 802.11 standard, AP can announce a specific 20MHz primary channel to its association user, and receiving terminal can typically intercept the primary channel.

Transmitting terminal generates a transmission frame waiting for transmission, and the transmission frame includes the first signaling field, certainly thereafter also including data field etc..Transmitting terminal writes duplication configured information and bandwidth information in the first signaling field, and the duplication configured information can include replicating indicating, be used to indicate whether that one or more fields after the first signaling field to the transmission frame carry out frequency domain duplication；The bandwidth information indicates the transmission channel frequency bandwidth that the transmission frame after replicating should be full of.

Under normal circumstances, when the total bandwidth of transmission channel is more than 20MHz and the integral multiple for 20MHz, first signaling field and its all fields before are in frequency domain to carry out copy transmissions in units of 20MHz, and other fields after the first signaling field, then it is transmitted in the way of indicated by the first signaling field.

Step S102, according to the duplication configured information, at least one field after first signaling field of the transmission frame is subjected to frequency domain duplication in units of specific bandwidth so that the transmission frame after duplication is full of the transmission channel frequency bandwidth indicated by the bandwidth information.

According to the duplication configured information, field to be copied is subjected to frequency domain duplication in units of specific bandwidth, then, the transmission frame after duplication is full of the transmission channel frequency bandwidth indicated by bandwidth information.For example, the specific bandwidth is 20MHz, transmission channel frequency bandwidth is 80MHz, then the first of the transmission frame should be believed One or more fields after field are made to carry out four duplications so that the transmission frame after duplication is full of 80MHz transmission channel frequency bandwidth.

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

Generate transmission frame, after the completion of the preparation of the part or all of field after the first signaling field in copy transmissions frame, transmitting terminal sends the transmission frame after the duplication on the transmission channel indicated by the bandwidth information, so, when receiving terminal is received, if detect has the duplication configured information and bandwidth information in the first signaling field, then receiving terminal can be determined, multiple copies of at least one field after first signaling field of the transmission frame received in the transmission channel frequency bandwidth indicated by bandwidth information, it is in frequency domain copy transmissions in units of specific bandwidth, therefore multiple copies can be decoded, specifically, these copies are merged using folding, then, the transmission frame of merging is decoded, so as to the data content at least one field for accurately and reliably receiving duplication, so as to improve the reliability of data transfer in the transmission frame between transmitting terminal and receiving terminal.Folding can be any folding, such as selection combining, maximum-ratio combing, depending on the selection and realization of receiving terminal.

In concrete implementation, a kind of duplication schematic diagram of transmission frame as shown in Figure 3, transmission frame uses the structure of physical layer convergence process protocol Data Unit (physical layer convergence procedure protocol data unit, PPDU) as shown in Figure 3.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, the first signaling field includes bandwidth (English：Bandwidth, referred to as：BW) and replicate indicate (duplicate indication), for example, it is N × 20MHz that BW, which can be set, wherein, specific bandwidth is 20MHz, herein, the specific bandwidth is pre-set bandwidths, the bandwidth that i.e. transmitting terminal and receiving terminal have been consulted in advance, or the prespecified bandwidth of agreement, transmitting terminal need not can again notify receiving terminal.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 needs to carry out n times duplication.Replicate and indicate to could be arranged to 0 or 1 or the mark that can recognize of other both sides, one or more fields after the first signaling field in transmission frame are replicated for example, being set to 1 expression, 0 expression is set to and is not replicated.The duplication indicates that message can indicate to replicate all fields such as HE-STF, HE-LTF, HE-SIG-B and Data field after the first signaling field, and wherein one or more fields can also be selected to be replicated.Which field is specifically replicated, typically agreement is defined in advance, or transmitting terminal and receiving terminal offered.It is of course also possible to explicitly be carried out in the first signaling field The identification information of one or more fields of line frequency domain duplication is included into mark, i.e. the first signaling field.Then, one or more fields after above-mentioned 20MHzPPDU the first signaling field are replicated in N × 20MHz transmission channel frequency bandwidth, and the transmission frame in N × 20MHz transmission channel frequency bandwidth after transmission duplication.For example, being that Data fields are replicated in figure 3, BW=80MHz then needs to replicate Data fields four times.In figure 3, replicate and indicate to be located in the first signaling field HE-SIG-A with BW, the data content that the field of transmission to be copied is located in data field, the data field for example can be resource allocation information.For example, the transmission frame is Trigger frames, schedule information is included in data field.What deserves to be explained is, transmission of three 20MHz compared to minimum 20MHz of high frequency there may be phase place during 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 no longer especially emphasize.

Certainly, if removing HE-SIG-B in above-mentioned PPDU structures, now, bandwidth and duplication indicate to be located in unique HE-SIG fields.

It should be noted that, due to discontinuous frequency band may be used, the instruction of bandwidth is not necessarily a value, and it is probably the bitmap (Bitmap) of the frequency transmission subchannel of a composition current transmission channel, the duplication schematic diagram of another transmission frame as shown in Figure 4, wherein, the 3rd 20MHz is not used, now, receiving terminal is received or should exclude untapped subband during union operation.

Refer to Fig. 5, for the modulating-coding schematic diagram of MCS32 in the prior art a kind of, a kind of modulation coding mode for being referred to as MCS32 is proposed in 802.11n, when a user detects the MCS=32 in HT-SIG on fundamental channels, then mean that following data fields will be transmitted with 40MHz, and the data on two 20MHz are to repeat, used modulation coding mode is MCS0.Now, user can merge two 20MHz data (such as maximum-ratio combing), then decode, so as to improve the reliability of data division transmission.This method, data division can only carry out repeating (MCS32 is 20MHz) in units of fixed-bandwidth, and can only be using fixed MCS (because the MCS fields in HT-SIG have been set to 32, it is impossible to be used to refer to other modulation coding modes of Data parts).And in fact, because the use of folding improves Signal to Interference plus Noise Ratio (English：Signal to Interference plus Noise Ratio, referred to as：SINR), Data parts are there is a possibility that with higher MCS.

The embodiment of the present invention is improved it, refer to the duplication schematic diagram of another transmission frame shown in Fig. 6 and Fig. 7, as shown in Figure 6, when channel condition is preferable, it is a kind of preferably selection twice to be replicated in units of 40MHz in 80MHz bandwidth, time-domain transmission duration can be reduced, efficiency of transmission is improved；Together Reason, as shown in fig. 7, when channel condition is poor, it is probably inadequate to carry out replicating in units of 20MHz, carries out replicating just can guarantee that reliability in units of 10MHz.Therefore, replicate herein and indicate to need to include the information of specific bandwidth in message, the frequency domain bandwidth unit (English when specific bandwidth is used to indicate to carry out at least one field after the first signaling field of transmission frame into frequency domain duplication：Bandwidth Unit, BU).Herein, during copy transmissions frame, because the bandwidth for the primary channel that transmitting terminal and receiving terminal are consulted is constant, for example, 20MHz, but, primary bandwidth unit can be more than or less than by carrying out the specific frequency domain bandwidth unit of field duplication, therefore, when replicating and sending transmission frame, L-premble and HE-SIG-A still keep constant, using fundamental channel bandwidth 20MHz as unit copy transmissions, duplication transmission only is carried out to field thereafter.

As shown in Figure 8, for the duplication schematic diagram of another transmission frame, based on BU, (Duplicate Indication=1,) and (Duplicate Indication=0 BW=BU=80, BW=80 the actual PPDU structures indicated by) are identicals, therefore, and not replicated PPDU structures can regard a kind of special case for replicating PPDU structures as.

In embodiment above, resource allocation information is respectively positioned on media access control layer (English：Medium Access Control, referred to as：MAC), i.e., in the Data fields of PPDU structures.In fact, resource allocation information is it is also possible to be located in physical header, the HE-SIG-B in such as Fig. 9.Now, BW, Duplicate Indication, BU are (optional) is located in HE-SIG-A, and the duplication for replicating not Data fields indicated by it, but HE-SIG-B duplication.

As another embodiment, replicate configured information and can also be including being used to indicate whether that at least one field after the first signaling field to transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.For example, being represented with two bit informations, represent to replicate in units of 20MHz if 00 represents not replicate, 01,10 represent to replicate in units of 40MHz, 11 represent to replicate in units of 40MHz.

It should be noted that, although be described above with scheduling of resource frame, but the scheme that the present invention is designed is not limited in scheduling of resource frame, and any transmission frame is can be used for, to improve the reliability of its transmission.

For example, when multiple STA receive AP ascending resource scheduling frame (Trigger), and after sending data to AP with OFDMA or MU MIMO, AP need to reply acknowledgement frame, i.e. ACK or BA to these STA.Due to the transmission of acknowledgement frame, not OFDMA or MIMO method are each sent to each STA, but single frames mode broadcast transmission (content is in MAC layer, i.e. Data fields) by multiple STA, it is necessary to be received, therefore its reliability is also especially important.Now, the transmission of acknowledgement frame also can be by the way of the present invention 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 indicates message and bandwidth information by carrying to replicate in the first signaling field of transmission frame to be sent, according to duplication configured information, at least one field after first signaling field of transmission frame is entered into line frequency field in units of specific bandwidth to replicate, so that the transmission frame after replicating is full of the transmission channel frequency bandwidth indicated by bandwidth information, then the transmission frame after replicating is sent on the transmission channel indicated by bandwidth information, receiving terminal is set reliably to receive the data in the field replicated in transmission frame, improve the reliability field of the transmission of data in the transmission frame between transmitting terminal and receiving terminal.

Referring to Fig. 10, for a kind of schematic flow sheet of the method for reseptance of transmission frame provided in an embodiment of the present invention, this method comprises the following steps：

Step S201, detects the duplication configured information and bandwidth information of the transmission frame in the first signaling field of transmission frame.

Whether receiving terminal detects to include in the first signaling field of transmission frame first on fundamental channels replicates configured information and bandwidth information, and the transmission frame includes the first signaling field, certainly thereafter also including data field etc..The duplication configured information can include replicating indicating, 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 duplication configured information can also include the identification information of at least one field after the first signaling field of the transmission frame replicated；The bandwidth information refers to the transmission channel frequency bandwidth that the transmission frame after replicating should be full of.At least one field after first signaling field of transmission frame includes：All fields after first signaling field of transmission frame, or, data field, or, the second signaling field, or, data field and the second signaling field.

Under normal circumstances, when the total bandwidth of transmission channel is more than 20MHz and the integral multiple for 20MHz, first signaling field of transmitting terminal and its all fields before are in frequency domain to carry out copy transmissions in units of 20MHz, and other fields after the first signaling field, then it is transmitted in the way of indicated by the first signaling field.

Step S202, according to the duplication configured information, a specific bandwidth in each copy correspondence transmission channel at least one copy of at least one field after first signaling field of the transmission frame after reception is replicated on the transmission channel indicated by the bandwidth information, at least one described copy.

If at least one described field is as defined in agreement, or both sides' offered, then on the transmission channel indicated by the bandwidth information, one or more copies of at least one field after the first signaling field of the transmission frame after reception duplication.

If at least one described field is what is indicated by replicating the identification information in configured information, then on the transmission channel indicated by the bandwidth information, one or more copies of at least one field after the first signaling field of the transmission frame after duplication indicated by the reception identification information.

The bandwidth that the specific bandwidth can in advance consult for pre-set bandwidths, i.e. transmitting terminal and receiving terminal, or the prespecified bandwidth of agreement, transmitting terminal need not can again notify receiving terminal.

The duplication configured information includes specific bandwidth, the frequency domain bandwidth unit when specific bandwidth is used to indicate to carry out at least one field after the first signaling field of transmission frame into frequency domain duplication.

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

Receiving terminal is decoded to multiple copies of the copy field in the transmission frame that receives, specifically, these copies are merged using folding, then, the transmission frame of merging is decoded, so as to the content for the field for accurately and reliably receiving duplication, so as to improve the reliability of data transfer in the transmission frame between transmitting terminal and receiving terminal.Folding can be any folding, and such as selection combining, i.e. receiving terminal are received in specific bandwidth, and such as specific bandwidth is 20MHz, as long as any of which 20MHz decodings are correct, then the frame transmission success；It can also be that the copy of maximum-ratio combing, i.e. receiving terminal will receive duplication field on multiple 20MHz is merged, then be decoded, which kind of folding specifically to depend on the selection and realization of receiving terminal using.Here at least one field that specific bandwidth can also be indicated for after the first signaling field by the transmission frame carries out frequency domain bandwidth unit during 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 PPDU as shown in Figure 3 structure.The PPDU includes L-preamble, HE-SIG-A, HE-STF, HE-LTF and Data, can also include HE-SIG-B.In this is implemented, first signaling field includes BW and replicated to indicate, for example, BW can be set to be N × 20MHz, wherein, transmitting terminal carries out frequency domain duplication with specific bandwidth to one or more fields after HE-SIG-A, specific bandwidth is 20MHz, herein, and the specific bandwidth is pre-set bandwidths, the bandwidth that i.e. transmitting terminal and receiving terminal have been consulted in advance, or association The prespecified bandwidth of view, transmitting terminal need not can again notify receiving terminal, and receiving terminal receives the copy of the field replicated according to the pre-set bandwidths of protocol conventions.

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 needs to carry out n times duplication.Replicate and indicate to could be arranged to 0 or 1 or the mark that can recognize of other both sides, one or more fields after the first signaling field in transmission frame are replicated for example, being set to 1 expression, 0 expression is set to and is not replicated.The duplication indicates that message can indicate to replicate all fields such as HE-STF, HE-LTF, HE-SIG-B and Data field after the first signaling field, and wherein one or more fields can also be selected to be replicated.Which field is specifically replicated, typically agreement is defined in advance, or transmitting terminal and receiving terminal offered.It is of course also possible to be explicitly identified in the first signaling field, i.e. the identification information of one or more fields of line frequency domain duplication is included into the first signaling field.Multiple copies of the field for the duplication that receiving terminal is received according to protocol conventions or according to identification information pair are decoded.

In figure 3, replicate and indicate to be located in the first signaling field HE-SIG-A with BW, the data content that the field of transmission to be copied is located in data field, the data field for example can be resource allocation information.For example, the transmission frame is Trigger frames, schedule information is included in data field.Certainly, if removing HE-SIG-B in above-mentioned PPDU structures, now, bandwidth and duplication indicate to be located in unique HE-SIG fields.

It should be noted that, due to discontinuous frequency band may be used, the instruction of bandwidth is not necessarily a value, and it is probably the bitmap of the frequency transmission subchannel of a composition current transmission channel, the duplication schematic diagram of another transmission frame as shown in Figure 4, wherein, the 3rd 20MHz is not used, now, receiving terminal is received or should exclude untapped subband during union operation.If bandwidth information is the bitmap of the transmission subchannel of transmission transmission frame, all transmission subchannels that the bitmap is indicated collectively constitute the transmission channel for transmitting the transmission frame, then step S202 is specially：At least one copy of at least one field after first signaling field of the transmission frame after reception is replicated on the transmission channel indicated by the bitmap.

Refer to Fig. 5, for the modulating-coding schematic diagram of MCS32 in the prior art a kind of, a kind of modulation coding mode for being referred to as MCS32 is proposed in 802.11n, when a user detects the MCS=32 in HT-SIG on fundamental channels, then mean that following data fields will be transmitted with 40MHz, and the data on two 20MHz are to repeat, used modulation coding mode is MCS0.Now, user can merge two 20MHz data (such as maximum-ratio combing), then decode, so as to improve the reliability of data division transmission.This method, data division can only carry out repeating (MCS32 is 20MHz) in units of fixed-bandwidth, and can only be using fixed MCS (because the MCS words in HT-SIG Section has been set to 32, it is impossible to be used to refer to other modulation coding modes of Data parts).And in fact, because the use of folding improves Signal to Interference plus Noise Ratio (English：Signal to Interference plus Noise Ratio, referred to as：SINR), Data parts are there is a possibility that with higher MCS.

The embodiment of the present invention is improved it, refer to the duplication schematic diagram of another transmission frame shown in Fig. 6 and Fig. 7, as shown in Figure 6, when channel condition is preferable, it is a kind of preferably selection twice that transmitting terminal is replicated in units of 40MHz in 80MHz bandwidth, time-domain transmission duration can be reduced, efficiency of transmission is improved；Similarly, as shown in fig. 7, when channel condition is poor, it is probably inadequate that transmitting terminal carries out replicating in units of 20MHz, carry out replicating just can guarantee that reliability in units of 10MHz.Therefore, replicate herein and indicate to need to include the information of specific bandwidth in message, the frequency domain bandwidth unit (English when specific bandwidth is used to indicate to carry out at least one field after the first signaling field of transmission frame into frequency domain duplication：Bandwidth Unit, BU).Receiving terminal is decoded according to BU to the copy of the field of the duplication received.Herein, during copy transmissions frame, because the bandwidth for the primary channel that transmitting terminal and receiving terminal are consulted is constant, for example, 20MHz, but, primary bandwidth unit can be more than or less than by carrying out the specific frequency domain bandwidth unit of field duplication, therefore, when replicating and sending transmission frame, L-premble and HE-SIG-A still keep constant, using fundamental channel bandwidth 20MHz as unit copy transmissions, duplication transmission only is carried out to field thereafter.

As another embodiment, replicate configured information and can also be including being used to indicate whether that at least one field after the first signaling field to transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.For example, being represented with two bit informations, represent to replicate in units of 20MHz if 00 represents not replicate, 01,10 represent to replicate in units of 40MHz, 11 represent to replicate in units of 40MHz.Receiving terminal is decoded according to the duplication configured information to the copy of the field of the duplication received.

The method of reseptance of the transmission frame provided according to embodiments of the present invention, transmitting terminal passes through in transmission to be sent Carry to replicate in first signaling field of frame and indicate message and bandwidth information, according to duplication configured information, at least one field after first signaling field of transmission frame is subjected to frequency domain duplication in units of specific bandwidth, so that the transmission frame after replicating is full of the transmission channel frequency bandwidth indicated by bandwidth information, then the transmission frame after replicating is sent on the transmission channel indicated by bandwidth information, receiving terminal is reliably received 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 terminal.

Figure 11 is referred to, is a kind of structural representation of the dispensing device of transmission frame provided in an embodiment of the present invention, the device 1000 includes：

Generation unit 11, for generating the duplication configured information and bandwidth information that include the transmission frame in a transmission frame, the first signaling field of the transmission frame.

Generation unit 11 generates a transmission frame waiting for transmission, and the transmission frame includes the first signaling field, certainly thereafter also including data field etc..Transmitting terminal writes duplication configured information and bandwidth information in the first signaling field, and the duplication configured information can include replicating indicating, be used to indicate whether that one or more fields after the first signaling field to the transmission frame carry out frequency domain duplication；The bandwidth information indicates the transmission channel frequency bandwidth that the transmission frame after replicating should be full of.

Copied cells 12, for according to the duplication configured information, at least one field after first signaling field of the transmission frame is subjected to frequency domain duplication in units of specific bandwidth so that the transmission frame after duplication is full of the transmission channel frequency bandwidth indicated by the bandwidth information.

Field to be copied is carried out frequency domain duplication by copied cells 12 according to the duplication configured information in units of specific bandwidth, then, and the transmission frame after duplication is full of the transmission channel frequency bandwidth indicated by bandwidth information.For example, the specific bandwidth is 20MHz, transmission channel frequency bandwidth is 80MHz, then should be to the transmission One or more fields after first signaling field of frame carry out four duplications so that the transmission frame after duplication is full of 80MHz transmission channel frequency bandwidth.

Transmitting element 13, for sending the transmission frame after the duplication on the transmission channel indicated by the bandwidth information.

Generation unit 11 generates transmission frame, after the completion of the preparation of the part or all of field after the first signaling field in the copy transmissions frame of copied cells 12, transmitting element 13 sends the transmission frame after the duplication on the transmission channel indicated by the bandwidth information, so, when receiving terminal is received, if detect has the duplication configured information and bandwidth information in the first signaling field, then receiving terminal can be determined, multiple copies of at least one field after first signaling field of the transmission frame received in the transmission channel frequency bandwidth indicated by bandwidth information, it is in frequency domain copy transmissions in units of specific bandwidth, therefore multiple copies can be decoded, specifically, these copies are merged using folding, then, the transmission frame of merging is decoded, so as to the data content at least one field for accurately and reliably receiving duplication, so as to improve the reliability of data transfer in the transmission frame between transmitting terminal and receiving terminal.Folding can be any folding, such as selection combining, maximum-ratio combing, depending on the selection and realization of receiving terminal.

The dispensing device of the transmission frame provided according to embodiments of the present invention, transmitting terminal indicates message and bandwidth information by carrying to replicate in the first signaling field of transmission frame to be sent, according to duplication configured information, at least one field after first signaling field of transmission frame is entered into line frequency field in units of specific bandwidth to replicate, so that the transmission frame after replicating is full of the transmission channel frequency bandwidth indicated by bandwidth information, then the transmission frame after replicating is sent on the transmission channel indicated by bandwidth information, receiving terminal is set reliably to receive the data in the field replicated in transmission frame, improve the reliability field of the transmission of data in the transmission frame between transmitting terminal and receiving terminal.

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

Detection unit 21, duplication configured information and bandwidth information for detecting the transmission frame in the first signaling field of transmission frame.

Whether detection unit 21 detects to include in the first signaling field of transmission frame first on fundamental channels replicates configured information and bandwidth information, and the transmission frame includes the first signaling field, certainly thereafter also including data field etc..The duplication configured information can include replicating indicating, 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 duplication configured information can also include the identification information of at least one field after the first signaling field of the transmission frame replicated；The bandwidth information refers to the transmission channel frequency bandwidth that the transmission frame after replicating should be full of.At least one field after first signaling field of transmission frame includes：All fields after 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, for according to the duplication configured information, a specific bandwidth in each copy correspondence transmission channel at least one copy of at least one field after first signaling field of the transmission frame after reception is replicated on the transmission channel indicated by the bandwidth information, at least one described copy.

If at least one described field is as defined in agreement, or both sides' offered, then receiving unit 22 is on the transmission channel indicated by the bandwidth information, one or more copies of at least one field after the first signaling field of the transmission frame after reception duplication.

If at least one described field is what is indicated by replicating the identification information in configured information, then receiving unit 22 is on the transmission channel indicated by the bandwidth information, one or more copies of at least one field after the first signaling field of the transmission frame after duplication indicated by the reception identification information.

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

Multiple copies of copy field in the transmission frame that first decoding unit 23 is received to receiving unit 22 are decoded, specifically, and the first decoding unit 23 includes：Combining unit and the second decoding unit, combining unit are merged at least one copy described in receiving；Second decoding unit, for being decoded to the transmission frame after the merging.These copies are merged using folding, then, the transmission frame of merging decoded, so as to the content for the field for accurately and reliably receiving duplication, so as to improve the reliability of data transfer in the transmission frame between transmitting terminal and receiving terminal.Folding can be any folding, and such as selection combining, i.e. receiving terminal are received in specific bandwidth, and such as specific bandwidth is 20MHz, as long as any of which 20MHz decodings are correct, then the frame transmission success；It can also be that the copy of maximum-ratio combing, i.e. receiving terminal will receive duplication field on multiple 20MHz is merged, then be decoded, which kind of folding specifically to depend on the selection and realization of receiving terminal using.Here at least one field that specific bandwidth can also be indicated for after the first signaling field by the transmission frame carries out frequency domain bandwidth unit during 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 PPDU as shown in Figure 3 structure.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, the first signaling field include BW and Replicate and indicate, for example, BW can be set to be N × 20MHz, wherein, transmitting terminal carries out frequency domain duplication with specific bandwidth to one or more fields after HE-SIG-A, specific bandwidth is 20MHz, herein, and the specific bandwidth is pre-set bandwidths, the bandwidth that i.e. transmitting terminal and receiving terminal have been consulted in advance, or the prespecified bandwidth of agreement, transmitting terminal need not can again notify receiving terminal, and receiving terminal receives the copy of the field replicated according to the pre-set bandwidths of protocol conventions.

It should be noted that, due to discontinuous frequency band may be used, the instruction of bandwidth is not necessarily a value, and it is probably the bitmap of the frequency transmission subchannel of a composition current transmission channel, the duplication schematic diagram of another transmission frame as shown in Figure 4, wherein, the 3rd 20MHz is not used, now, receiving terminal is received or should exclude untapped subband during union operation.If bandwidth information for transmission transmission frame transmission subchannel bitmap, the bitmap indicate all transmission subchannels collectively constitute transmit the transmission frame transmission channel, then receiving unit 22 specifically for：At least one copy of at least one field after first signaling field of the transmission frame after reception is replicated on the transmission channel indicated by the bitmap.

Refer to Fig. 5, for the modulating-coding schematic diagram of MCS32 in the prior art a kind of, a kind of modulation coding mode for being referred to as MCS32 is proposed in 802.11n, when a user detects the MCS=32 in HT-SIG on fundamental channels, then mean that following data fields will be transmitted with 40MHz, and the data on two 20MHz are to repeat, used modulation coding mode is MCS0.Now, user can be by Two 20MHz data merge (such as maximum-ratio combing), then decode, so as to improve the reliability of data division transmission.This method, data division can only carry out repeating (MCS32 is 20MHz) in units of fixed-bandwidth, and can only be using fixed MCS (because the MCS fields in HT-SIG have been set to 32, it is impossible to be used to refer to other modulation coding modes of Data parts).And in fact, because the use of folding improves Signal to Interference plus Noise Ratio (English：Signal to Interference plus Noise Ratio, referred to as：SINR), Data parts are there is a possibility that with higher MCS.

It should be noted that, although be described above with scheduling of resource frame, but the scheme that the present invention is designed is simultaneously Scheduling of resource frame is not limited only to, and can be used for any transmission frame, to improve the reliability of its transmission.

The reception device of the transmission frame provided according to embodiments of the present invention, transmitting terminal indicates message and bandwidth information by carrying to replicate in the first signaling field of transmission frame to be sent, according to duplication configured information, at least one field after first signaling field of transmission frame is subjected to frequency domain duplication in units of specific bandwidth, so that the transmission frame after replicating is full of the transmission channel frequency bandwidth indicated by bandwidth information, then the transmission frame after replicating is sent on the transmission channel indicated by bandwidth information, receiving terminal 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 terminal.

Figure 13 is referred to, is a kind of structural representation of the transmission equipment of transmission frame provided in an embodiment of the present invention, the transmission equipment 3000 includes：Processor 31 and transmitter 32；

As a kind of embodiment, the duplication configured information, which includes replicating, to be indicated；

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

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

As another embodiment, the identification information of at least one field after the first signaling field of the duplication configured information also including the transmission frame replicated.

As another embodiment, the bandwidth information is that, for the bitmap for the transmission subchannel for transmitting the transmission frame, all transmission subchannels that the bitmap is indicated 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：All fields after first signaling field of the transmission frame, or, data field, or, the second signaling field, or, data field and the second signaling field.

As another embodiment, at least one field that the duplication configured information includes being used to indicate whether after the first signaling field to the transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.

The transmission equipment of the transmission frame provided according to embodiments of the present invention, transmitting terminal indicates message and bandwidth information by carrying to replicate in the first signaling field of transmission frame to be sent, according to duplication configured information, at least one field after first signaling field of transmission frame is entered into line frequency field in units of specific bandwidth to replicate, so that the transmission frame after replicating is full of the transmission channel frequency bandwidth indicated by bandwidth information, then the transmission frame after replicating is sent on the transmission channel indicated by bandwidth information, receiving terminal is set reliably to receive the data in the field replicated in transmission frame, improve the reliability field of the transmission of data in the transmission frame between transmitting terminal and receiving terminal.

Figure 14 is referred to, is a kind of structural representation of the receiving device of transmission frame provided in an embodiment of the present invention, the receiving device 4000 includes：Processor 41 and receiver 42；

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

As another embodiment, the bandwidth information is that for the bitmap for the transmission subchannel for transmitting the transmission frame, all transmission subchannels that the bitmap is indicated collectively constitute the transmission channel for transmitting the transmission frame, the receiver specifically for：

The step of at least one copy described in being received as another embodiment, described in the computing device is decoded, including：

At least one copy is merged described in receiving；

Transmission frame after the merging is decoded.

The receiving device of the transmission frame provided according to embodiments of the present invention, transmitting terminal indicates message and bandwidth information by carrying to replicate in the first signaling field of transmission frame to be sent, according to duplication configured information, at least one field after first signaling field of transmission frame is subjected to frequency domain duplication in units of specific bandwidth, so that the transmission frame after replicating is full of the transmission channel frequency bandwidth indicated by bandwidth information, then the transmission frame after replicating is sent on the transmission channel indicated by bandwidth information, receiving terminal 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 terminal.

It should be noted that, for foregoing each method embodiment, in order to be briefly described, therefore it is all expressed as to a series of combination of actions, but those skilled in the art should know, the present invention is not limited by described sequence of movement, because according to the present invention, some steps can be carried out sequentially or simultaneously using other.Secondly, those skilled in the art should also know, embodiment described in this description belongs to preferred embodiment, and involved action and the module not necessarily present invention are necessary.

In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, without detailed in some embodiment The part stated, may refer to the associated description of other embodiment.

Step in present invention method can be sequentially adjusted, merged and deleted according to actual needs.

Unit in device of the embodiment of the present invention can be combined, divided and deleted according to actual needs.Not be the same as Example and the feature of non-be the same as Example described in this specification can be combined or combined by those skilled in the art.

Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be realized with hardware, or firmware is realized, or combinations thereof mode is realized.When implemented in software, above-mentioned functions can be stored in computer-readable medium or be transmitted as one or more instructions on computer-readable medium or code.Computer-readable medium includes computer-readable storage medium and communication media, and wherein communication media includes being easy to any medium that computer program is transmitted from a place to another place.Storage medium can be any usable medium that computer can be accessed.As example but it is not limited to：Computer-readable medium can include random access memory (Random Access Memory, RAM), read-only storage (Read-Only Memory, ROM), EEPROM (Electrically Erasable Programmable Read-Only Memory, EEPROM), read-only optical disc (Compact Disc Read-Only Memory, ) or other optical disc storages CD-ROM, magnetic disk storage medium or other magnetic storage apparatus, or can be used in carrying or store with instruction or data structure form desired program code and can by computer access any other medium.In addition.Any connection can be suitably turn into computer-readable medium.For example, if software is to use coaxial cable, optical fiber cable, twisted-pair feeder, Digital Subscriber Line (Digital Subscriber Line,) or such as wireless technology of infrared ray, radio and microwave etc is transmitted from website, server or other remote sources DSL, then the wireless technology of coaxial cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray, wireless and microwave etc be included in belonging to medium it is fixing in.As used in the present invention, disk (Disk) and dish (disc) include compression laser disc (CD), laser disc, laser disc, Digital Versatile Disc (DVD), floppy disk and Blu-ray Disc, the replicate data of the usual magnetic of which disk, and dish is then with laser come optical replicate data.Above combination above should also be as being included within the protection domain of computer-readable medium.

In a word, the preferred embodiment of technical solution of the present invention is the foregoing is only, is not intended to limit the scope of the present invention.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection.

Claims

A kind of sending method of transmission frame, it is characterised in that including：

Generate the duplication configured information and bandwidth information for including the transmission frame in a transmission frame, the first signaling field of the transmission frame；

According to the duplication configured information, at least one field after the first signaling field of the transmission frame is subjected to frequency domain duplication in units of specific bandwidth so that the transmission frame after duplication is full of the transmission channel frequency bandwidth indicated by the bandwidth information；

The transmission frame after the duplication is sent on the transmission channel indicated by the bandwidth information.
The method as described in claim 1, it is characterised in that the duplication configured information, which includes replicating, to be indicated；

Described replicate indicates to be used to indicate whether that at least one field after the first signaling field to the transmission frame carries out frequency domain duplication.
Method as claimed in claim 1 or 2, it is characterised in that the specific bandwidth is pre-set bandwidths.
Method as claimed in claim 1 or 2, it is characterised in that the duplication configured information includes the specific bandwidth；

Wherein, the frequency domain bandwidth unit when specific bandwidth is used to indicate to carry out at least one field after the first signaling field of the transmission frame into frequency domain duplication.
Method as described in claim 1-4 any one, it is characterised in that the identification information of at least one field after the first signaling field of the duplication configured information also including the transmission frame replicated.
Method as described in claim 1-5 any one, it is characterised in that the bandwidth information is all transmission subchannels indicated for the bitmap for the transmission subchannel for transmitting the transmission frame, the bitmap Collectively constitute the transmission channel for transmitting the transmission frame.
Method as claimed in any one of claims 1 to 6, it is characterised in that at least one field after the first signaling field of the transmission frame includes：All fields after first signaling field of the transmission frame, or, data field, or, the second signaling field, or, data field and the second signaling field.
The method as described in claim 1, characterized in that, described at least one field for replicating configured information and including being used to indicate whether after the first signaling field to the transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.
A kind of method of reseptance of transmission frame, it is characterised in that including：

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

According to the duplication configured information, a specific bandwidth in each copy correspondence transmission channel at least one copy of at least one field after first signaling field of the transmission frame after reception is replicated on the transmission channel indicated by the bandwidth information, at least one described copy；

At least one copy is decoded described in receiving.
Method as claimed in claim 9, it is characterised in that the duplication configured information, which includes replicating, to be indicated；

Described replicate indicates to be used to indicate whether that at least one field after the first signaling field to the transmission frame carries out frequency domain duplication.
Method as described in claim 9 or 10, it is characterised in that the specific bandwidth is pre-set bandwidths.
Method as described in claim 9 or 10, it is characterised in that the duplication configured information includes the specific bandwidth；

Wherein, the frequency domain bandwidth unit when specific bandwidth is used to indicate to carry out at least one field after the first signaling field of the transmission frame into frequency domain duplication.
Method as described in claim 9-12 any one, it is characterised in that the identification information of at least one field after the first signaling field of the duplication configured information also including the transmission frame replicated.
Method as described in claim 9-13 any one, it is characterized in that, the bandwidth information is for the bitmap for the transmission subchannel for transmitting the transmission frame, all transmission subchannels that the bitmap is indicated collectively constitute the transmission channel for transmitting the transmission frame, it is described according to the duplication configured information, at least one copy of at least one field after first signaling field of the transmission frame after reception is replicated on the transmission channel indicated by the bandwidth information, including：

At least one copy of at least one field after the first signaling field of the transmission frame after the duplication is received on the transmission channel indicated by the bitmap.
Method as claimed in claim 9, characterized in that, described at least one field for replicating configured information and including being used to indicate whether after the first signaling field to the transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.
Method as described in claim 9-15 any one, it is characterised in that at least one field after the first signaling field of the transmission frame includes：All fields after first signaling field of the transmission frame, or, data field, or, the second signaling field, or, data field and the second signaling field.
Method as described in claim 9-16 any one, it is characterised in that it is described will receive described at least one copy decoded, including：

At least one copy is merged described in receiving；

Transmission frame after the merging is decoded.
A kind of dispensing device of transmission frame, it is characterised in that including：

Generation unit, for generating the duplication configured information and bandwidth information that include the transmission frame in a transmission frame, the first signaling field of the transmission frame；

Copied cells, for according to the duplication configured information, at least one field after the first signaling field of the transmission frame being carried out into frequency domain duplication in units of specific bandwidth so that the transmission frame after duplication is full of Transmission channel frequency bandwidth indicated by the bandwidth information；

Transmitting element, for sending the transmission frame after the duplication on the transmission channel indicated by the bandwidth information.
Dispensing device as claimed in claim 18, it is characterised in that the duplication configured information, which includes replicating, to be indicated；

Described replicate indicates to be used to indicate whether that at least one field after the first signaling field to the transmission frame carries out frequency domain duplication.
Dispensing device as described in claim 18 or 19, it is characterised in that the specific bandwidth is pre-set bandwidths.
Dispensing device as described in claim 18 or 19, it is characterised in that the duplication configured information includes the specific bandwidth；

Wherein, the frequency domain bandwidth unit when specific bandwidth is used to indicate to carry out at least one field after the first signaling field of the transmission frame into frequency domain duplication.
Dispensing device as described in claim 18-21 any one, it is characterised in that the identification information of at least one field after the first signaling field of the duplication configured information also including the transmission frame replicated.
Dispensing device as described in claim 18-22 any one, it is characterized in that, the bandwidth information is that, for the bitmap for the transmission subchannel for transmitting the transmission frame, all transmission subchannels that the bitmap is indicated collectively constitute the transmission channel for transmitting the transmission frame.
Dispensing device as described in claim 18-23 any one, it is characterised in that at least one field after the first signaling field of the transmission frame includes：All fields after first signaling field of the transmission frame, or, data field, or, the second signaling field, or, data field and the second signaling field.
Dispensing device as claimed in claim 18, characterized in that, described at least one field for replicating configured information and including being used to indicate whether after the first signaling field to the transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.
A kind of reception device of transmission frame, it is characterised in that including：

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

Receiving unit, for according to the duplication configured information, a specific bandwidth in each copy correspondence transmission channel at least one copy of at least one field after first signaling field of the transmission frame after reception is replicated on the transmission channel indicated by the bandwidth information, at least one described copy；

First decoding unit, is decoded at least one copy described in receiving.
Reception device as claimed in claim 26, it is characterised in that the duplication configured information, which includes replicating, to be indicated；

Described replicate indicates to be used to indicate whether that at least one field after the first signaling field to the transmission frame carries out frequency domain duplication.
Reception device as described in claim 26 or 27, it is characterised in that the specific bandwidth is pre-set bandwidths.
Reception device as described in claim 26 or 27, it is characterised in that the duplication configured information includes the specific bandwidth；

Wherein, the frequency domain bandwidth unit when specific bandwidth is used to indicate to carry out at least one field after the first signaling field of the transmission frame into frequency domain duplication.
Reception device as described in claim 26-29 any one, it is characterised in that the identification information of at least one field after the first signaling field of the duplication configured information also including the transmission frame replicated.
Reception device as described in claim 26-30 any one, it is characterized in that, the bandwidth information is for the bitmap for the transmission subchannel for transmitting the transmission frame, all transmission subchannels that the bitmap is indicated collectively constitute the transmission channel for transmitting the transmission frame, the reception device specifically for：

At least one copy of at least one field after the first signaling field of the transmission frame after the duplication is received on the transmission channel indicated by the bitmap.
Reception device as claimed in claim 26, characterized in that, described at least one field for replicating configured information and including being used to indicate whether after the first signaling field to the transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.
Reception device as described in claim 26-32 any one, it is characterised in that at least one field after the first signaling field of the transmission frame includes：All fields after first signaling field of the transmission frame, or, data field, or, the second signaling field, or, data field and the second signaling field.
Reception device as described in claim 26-33 any one, it is characterised in that 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.
A kind of transmission equipment of transmission frame, it is characterised in that including：Processor and transmitter；

The processor is used to generate the duplication configured information and bandwidth information for including the transmission frame in a transmission frame, the first signaling field of the transmission frame；

The processor is additionally operable to according to the duplication configured information, at least one field after first signaling field of the transmission frame is subjected to frequency domain duplication in units of specific bandwidth so that the transmission frame after duplication is full of the transmission channel frequency bandwidth indicated by the bandwidth information；

The transmitter is used to send the transmission frame after the duplication on the transmission channel indicated by the bandwidth information.
It is as claimed in claim 35 to send equipment, it is characterised in that the duplication configured information bag Duplication is included to indicate；

Described replicate indicates to be used to indicate whether that at least one field after the first signaling field to the transmission frame carries out frequency domain duplication.
Transmission equipment as described in claim 35 or 36, it is characterised in that the specific bandwidth is pre-set bandwidths.
Transmission equipment as described in claim 35 or 36, it is characterised in that the duplication configured information includes the specific bandwidth；

Wherein, the frequency domain bandwidth unit when specific bandwidth is used to indicate to carry out at least one field after the first signaling field of the transmission frame into frequency domain duplication.
Transmission equipment as described in claim 35-38 any one, it is characterised in that the identification information of at least one field after the first signaling field of the duplication configured information also including the transmission frame replicated.
Transmission equipment as described in claim 35-39 any one, it is characterized in that, the bandwidth information is that, for the bitmap for the transmission subchannel for transmitting the transmission frame, all transmission subchannels that the bitmap is indicated collectively constitute the transmission channel for transmitting the transmission frame.
Transmission equipment as described in claim 35-40 any one, it is characterised in that at least one field after the first signaling field of the transmission frame includes：All fields after first signaling field of the transmission frame, or, data field, or, the second signaling field, or, data field and the second signaling field.
It is as claimed in claim 35 to send equipment, characterized in that, described at least one field for replicating configured information and including being used to indicate whether after the first signaling field to the transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.
A kind of receiving device of transmission frame, it is characterised in that including：Processor and receiver；

The processor is used for the duplication configured information and bandwidth information that the transmission frame is detected in the first signaling field of transmission frame；

The receiver is used for according to the duplication configured information, a specific bandwidth in each copy correspondence transmission channel at least one copy of at least one field after first signaling field of the transmission frame after reception is replicated on the transmission channel indicated by the bandwidth information, at least one described copy；

The processor be additionally operable to receive described at least one copy decoded.
Receiving device as claimed in claim 43, it is characterised in that the duplication configured information, which includes replicating, to be indicated；

Described replicate indicates to be used to indicate whether that at least one field after the first signaling field to the transmission frame carries out frequency domain duplication.
Receiving device as described in claim 43 or 44, it is characterised in that the specific bandwidth is pre-set bandwidths.
Receiving device as described in claim 43 or 44, it is characterised in that the duplication configured information includes the specific bandwidth；

Wherein, the frequency domain bandwidth unit when specific bandwidth is used to indicate to carry out at least one field after the first signaling field of the transmission frame into frequency domain duplication.
Receiving device as described in claim 43-46 any one, it is characterised in that the identification information of at least one field after the first signaling field of the duplication configured information also including the transmission frame replicated.
Receiving device as described in claim 43-47 any one, it is characterized in that, the bandwidth information is that for the bitmap for the transmission subchannel for transmitting the transmission frame, all transmission subchannels that the bitmap is indicated collectively constitute the transmission channel for transmitting the transmission frame, the receiver specifically for：

At least one copy of at least one field after the first signaling field of the transmission frame after the duplication is received on the transmission channel indicated by the bitmap.
Receiving device as claimed in claim 43, characterized in that, described at least one field for replicating configured information and including being used to indicate whether after the first signaling field to the transmission frame carries out at least two bit informations of the frequency domain bandwidth unit of frequency domain duplication and duplication.
Receiving device as described in claim 43-49 any one, it is characterised in that at least one field after the first signaling field of the transmission frame includes：All fields after first signaling field of the transmission frame, or, data field, or, the second signaling field, or, data field and the second signaling field.
Receiving device as described in claim 43-50 any one, it is characterised in that the step of at least one copy described in being received described in the computing device is decoded, including：

At least one copy is merged described in receiving；

Transmission frame after the merging is decoded.