CN104869082B

CN104869082B - A kind of information processing method and electronic equipment

Info

Publication number: CN104869082B
Application number: CN201410060967.9A
Authority: CN
Inventors: 才宇
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2014-02-21
Filing date: 2014-02-21
Publication date: 2019-02-05
Anticipated expiration: 2034-02-21
Also published as: CN104869082A

Abstract

This application discloses a kind of method of information processing and electronic equipments, for solving the technical issues of receiver existing in the prior art can not correctly demodulate the signal of the communication channel from IEEE802.11ad consensus standard received, the described method includes: receiving the first reception signal comprising the first transmitting signal and noise signal by communication channel in the first leader sequence and the second leader sequence that the physical layer frame in the first communication standard has been determined；By the first reception signal carry out sliding to the first leader sequence and the second leader sequence respectively related, the first correlated series of acquisition and the second correlated series；Based on the first correlated series and the second correlated series, the channel time domain response sequence of communication channel is obtained；The selected part sequence from channel time domain response sequence obtains channel frequency response sequence according to partial sequence, and receives signal to first based on channel frequency response sequence and carry out the first demodulation.

Description

A kind of information processing method and electronic equipment

Technical field

This application involves wireless communication technology field, in particular to a kind of information processing method and electronic equipment.

Background technique

In a wireless communication system, the signal that transmitter is sent to receiver during transmission, send signal due to It is reflected the influence of phenomenon and refraction effect, multiple signals by different paths can be generated and reach receiver, receiver is logical It crosses and carries out vector superposed, acquisition reception signal to the signal from multiple and different paths received.It is being passed just because of signal It is existing to there is multipath fading so that the level for receiving signal will appear fluctuation for this Multipath Transmission characteristic during defeated As.For popular, interference and noise signal can be added after traffic channel in the signal that transmitter issues, or loses True phenomenon causes receiver that can not be demodulated according to the interfered signal received and really receives signal.

Since channel disturbance influences the correctness of receiver demodulated received signal, in signal transmission, communication is believed Road carries out channel estimation, and influence of the channel to input signal is depicted as precisely as possible to be very important.

But present inventor during inventive technique scheme, has found above-mentioned technology extremely in realizing the embodiment of the present application It has the following technical problems less:

In the prior art, channel models some for GSM, CDMA etc., set corresponding channel estimation method, But there is no corresponding channel for the communication channel for carrying out signal transmission using other network protocols such as such as IEEE802.11ad Estimation method.That is, receiver, which exists in the prior art, to come from IEEE802.11ad consensus standard to what is received The signal of communication channel the technical issues of correctly being demodulated.

Summary of the invention

The embodiment of the present application is deposited by providing the method and electronic equipment of a kind of information processing to solve in the prior art Receiver can not the signal to the communication channel from IEEE802.11ad consensus standard received correctly demodulated The technical issues of, a kind of communications channel estimation method is given, so that receiver is being received based on such as IEEE802.11ad When the signal of the traffic channel of other network protocols, the transmission characteristic of the channel, and root can be estimated according to this method The signal received is correctly demodulated according to the characteristic of channel.

On the one hand, the embodiment of the present application provides a kind of method of information processing, applied to the reception in a communication system In machine, which comprises

In the first leader sequence and the second leader sequence that the physical layer frame in the first communication standard has been determined, pass through institute The communication channel reception for stating communication system includes the first reception signal of the first transmitting signal and noise signal；

First reception signal and first leader sequence are subjected to sliding related, the first correlated series of acquisition, with And the first reception signal and second leader sequence be subjected to sliding related, the second correlated series of acquisition；

Based on first correlated series and second correlated series, the channel time domain response of the communication channel is obtained Sequence；

The selected part sequence from the channel time domain response sequence obtains channel frequency response according to the partial sequence Sequence, and signal is received to described first based on the channel frequency response sequence and carries out the first demodulation, obtain the first demodulation letter Number.

Optionally, the first reception signal and first leader sequence be subjected to sliding related, the acquisition first Correlated series, and the first reception signal and second leader sequence be subjected to sliding related, acquisition the second correlation sequence Column, specifically include:

Signal is received to described first based on the frame format standard of the physical layer frame and carries out frame synchronization, with from described first Receive the first estimated sequence determined in signal for channel estimation；

It is related that first estimated sequence and first leader sequence are subjected to sliding, obtain the described first related sequence Column, and first estimated sequence and second leader sequence be subjected to sliding related, acquisition second correlated series.

Optionally, described to be based on first correlated series and second correlated series, obtain the communication channel Channel time domain response sequence, specifically includes:

Based on first correlated series and second correlated series, it is logical to determine that the communication channel is based on described first Believe the transmission mode of standard transmission signal；

Based on the transmission mode, first correlated series and second correlated series, the communication channel is obtained The channel time domain response sequence.

Optionally, described to be based on first correlated series and second correlated series, determine the communication channel base In the transmission mode of first communication standard transmission signal, specifically include:

Obtain the second sequence in the mould and second correlated series of the First ray value in first correlated series The mould of value；

Judge the mould of the First ray value square whether be greater than second sequential value mould square, obtain first Judging result；

When first judging result, which is, is, determine that the transmission mode is the first transmission mode.

Optionally, described to be based on the transmission mode, first correlated series and second correlated series, obtain institute The channel time domain response sequence of communication channel is stated, specifically:

Based on the top n value in first correlated series and rear N number of value in second correlated series, described in acquisition First time domain impulse response sequence of communication channel, wherein related comprising M value, described second in first correlated series Comprising M value in sequence, M is positive integer, and N is the positive integer less than or equal to M.

Optionally, the selected part sequence from the channel time domain response sequence is obtained according to the partial sequence Channel frequency response sequence, and signal is received to described first based on the channel frequency response sequence and carries out the first demodulation, it obtains The first demodulated signal is obtained, is specifically included:

The partial sequence is chosen from the first time domain impulse response sequence, and institute is obtained according to the partial sequence State channel frequency response sequence, wherein include N number of value in the first time domain impulse response sequence, wrap in the partial sequence It is worth containing P, P is the positive integer less than or equal to N；

Signal is received to described first based on the channel frequency response and carries out first demodulation, obtains first solution Adjust signal.

Optionally, in the mould for square whether being greater than second sequential value of the mould for judging the First ray value Square, after obtaining the first judging result, the method also includes:

When first judging result is no, determine that the transmission mode is different from first transmission mode the Two transmission modes.

Based on rear N number of value in first correlated series and the top n value in second correlated series, described in acquisition Second time domain impulse response sequence of communication channel, wherein related comprising M value, described second in first correlated series Comprising M value in sequence, M is positive integer, and N is the positive integer less than or equal to M.

The partial sequence is chosen from the second time domain impulse response sequence, and institute is obtained according to the partial sequence State channel frequency response sequence, wherein include N number of value in the second time domain impulse response sequence, wrap in the partial sequence It is worth containing P, P is the positive integer less than or equal to N；

Signal is received to described first based on the channel frequency response sequence and carries out first demodulation, obtains described the One demodulated signal.

Optionally, first correlated series and second correlated series are based on described, obtain the communication channel Channel time domain response sequence after, the method also includes:

Signal is received to described first based on the channel time domain response sequence and carries out the second demodulation, obtains the second demodulation letter Number.

On the other hand, the embodiment of the present application also provides a kind of electronic equipment, are applied in a communication system, the electronics Equipment includes:

First receiving unit, in the first leader sequence and second that the physical layer frame in the first communication standard has been determined When leader sequence, being received by the communication channel of the communication system includes the first of the first transmitting signal and noise signal to connect The collection of letters number；

First acquisition unit, it is related for the first reception signal and first leader sequence to be carried out sliding, it obtains The first correlated series, and the first reception signal and second leader sequence be subjected to sliding related, acquisition second Correlated series；

Second acquisition unit obtains the communication for being based on first correlated series and second correlated series The channel time domain response sequence of channel；

Third acquiring unit, for the selected part sequence from the channel time domain response sequence, according to the partial order Column obtain channel frequency response sequence, and receive signal to described first based on the channel frequency response sequence and carry out the first solution It adjusts, obtains the first demodulated signal.

Optionally, the first acquisition unit, specifically includes:

First synchronous subelement, receives signal to described first for the frame format standard based on the physical layer frame and carries out Frame synchronization, to determine the first estimated sequence for channel estimation from the first reception signal；

First obtains subelement, related for first estimated sequence and first leader sequence to be carried out sliding, It obtains first correlated series, and that first estimated sequence and second leader sequence carried out sliding is related, obtains Obtain second correlated series.

Optionally, the second acquisition unit, specifically includes:

First determines subelement, for being based on first correlated series and second correlated series, determines described logical Believe transmission mode of the channel based on first communication standard transmission signal；

Second obtains subelement, for being based on the transmission mode, first correlated series sequence related to described second Column, obtain the channel time domain response sequence of the communication channel.

Optionally, it described first determines subelement, specifically includes:

First obtains module, and the mould for obtaining the First ray value in first correlated series is related to described second The mould of the second sequential value in sequence；

First judgment module, for judging whether the mould of the First ray value square is greater than second sequential value Square of mould obtains the first judging result；

First determining module, for when first judging result, which is, is, determining that the transmission mode is the first transmission Mode.

Optionally, described second subelement is obtained, specifically:

Optionally, the third acquiring unit, specifically includes:

Third obtains subelement, for choosing the partial sequence, and root from the first time domain impulse response sequence The channel frequency response sequence is obtained according to the partial sequence, wherein comprising N number of in the first time domain impulse response sequence It is worth, comprising P value in the partial sequence, P is the positive integer less than or equal to N；

4th obtains subelement, carries out described first for receiving signal to described first based on the channel frequency response Demodulation obtains first demodulated signal.

Optionally, described first subelement is determined further include:

Second determining module, for judge in the first judgment module First ray value mould it is square whether big In square of the mould of second sequential value, after obtaining the first judging result, when first judging result is no, determine The transmission mode is second transmission mode different from first transmission mode.

Optionally, described second subelement is obtained, specifically:

Optionally, the third acquiring unit, specifically includes:

5th obtains subelement, for choosing the partial sequence, and root from the second time domain impulse response sequence The channel frequency response sequence is obtained according to the partial sequence, wherein comprising N number of in the second time domain impulse response sequence It is worth, comprising P value in the partial sequence, P is the positive integer less than or equal to N；

6th obtains subelement, for being received described in signal progress based on the channel frequency response sequence to described first First demodulation, obtains first demodulated signal.

Optionally, the electronic equipment further include:

4th acquiring unit is related to described second for being based on first correlated series in the second acquisition unit Sequence, after the channel time domain response sequence for obtaining the communication channel, based on the channel time domain response sequence to described the One, which receives signal, carries out the second demodulation, obtains the second demodulated signal.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

(1) due in the embodiment of the present application, in the first leading sequence that the physical layer frame in the first communication standard has been determined It include the first transmitting signal and noise signal by the communication channel reception of the communication system when column and the second leader sequence First receive signal；First reception signal and first leader sequence are subjected to sliding related, the first correlation of acquisition Sequence, and the first reception signal and second leader sequence be subjected to sliding related, the second correlated series of acquisition；Base In first correlated series and second correlated series, the channel time domain response sequence of the communication channel is obtained；From institute Selected part sequence in channel time domain response sequence is stated, channel frequency response sequence is obtained according to the partial sequence, and be based on The channel frequency response sequence receives signal to described first and carries out the first demodulation, obtains the first demodulated signal.As it can be seen that communication For communication channel in system when carrying out signal transmission according to the first communication standard, receiver is receiving the first reception signal Afterwards, by first receive signal respectively with the physical layer frame in first communication standard it is leading in the first leader sequence and the Two leader sequences carry out sliding correlation, obtain the first correlated series and the second correlated series, and acquire based on two correlated series The channel time domain response sequence of the communication channel, then determine to be able to reflect channel spy based on the channel time domain response sequence Property channel frequency response sequence, and to first receive signal carry out first demodulation, obtain the first demodulated signal, solve existing Receiver present in technology can not carry out the signal of the communication channel from IEEE802.11ad consensus standard received It the technical issues of correct demodulation, realizes by providing a kind of communications channel estimation method, so that receiver is based on receiving When the signal of the traffic channel of the other network protocols of such as IEEE802.11ad, the channel can be estimated according to this method Transmission characteristic, and correctly demodulate according to the characteristic of channel technical effect of the signal received.

(2) due in the embodiment of the present application, when obtaining the first correlated series and the second correlated series, being primarily based on institute The frame format standard for stating physical layer frame receives signal to described first and carries out frame synchronization, is determined with receiving in signal from described first It is used for the first estimated sequence of channel estimation out；First estimated sequence and first leader sequence are subjected to sliding phase It closes, obtains first correlated series, and that first estimated sequence and second leader sequence carried out sliding is related, Second correlated series are obtained, the frame format standard based on physical layer frame is realized and determines that first estimates from the first reception signal Sequence (i.e. first receives the partial sequence in the preamble sequence of signal) is counted, so as to make full use of the first communication protocol standard Middle physical layer frame format carries out the technical effect of channel estimation.

(3) due in the embodiment of the present application, being based on first correlated series and second correlated series, obtaining During the channel time domain response sequence of the communication channel, it is related to described second to be primarily based on first correlated series Sequence determines transmission mode of the communication channel based on first communication standard transmission signal；Then, it is based on the transmission Mode, first correlated series and second correlated series obtain the channel time domain response sequence of the communication channel Column are realized based on the first correlated series and the second correlated series acquisition of communication channels signal transmission form, and combine transmission side Formula carries out the technical effect of communications channel estimation.

(4) since in the embodiment of the present application, being based on, traffic channel mode, the first correlated series and second are related When sequence obtains the channel time domain response sequence of communication channel, it can be communicated based on the first correlated series and the second correlated series The time domain impulse response sequence of channel, that is to say, that when estimating channel time domain response, estimated synchronous institute in communication channel Diameter before and after near each diameter communication characteristic so that channel equalization is more accurate.

(5) due in the embodiment of the present application, in the selected part sequence from the channel time domain response sequence, according to institute State partial sequence obtain channel frequency response sequence, and based on the channel frequency response sequence to it is described first receive signal into Row first demodulates, and during obtaining the first demodulated signal, selected part sequence can make from the channel time domain response sequence For main reference sequences, to obtain channel frequency response sequence (when transmission mode is the first transmission mode, when from first It is obtained in the impulse response sequence of domain；When transmission mode is the second transmission mode, obtained from the second time domain impulse response sequence Take), it allows a receiver to the characteristic of channel reflected according to channel frequency response sequence and correctly carries out the to receiving signal One demodulation, that is to say, that when calculating channel frequency response, according to the characteristic of channel, removal is disturbed biggish channel time domain and rings It answers, and selected part is interference-free or is disturbed lesser channel time domain response transform to frequency domain, to reduce noise and do The influence to channel frequency response is disturbed, so that channel frequency response is more accurate.

(6) due in the embodiment of the present application, after the channel time domain response sequence of acquisition of communication channels, receiving function Signal is enough received to described first based on the channel time domain response sequence and carries out the second demodulation, obtains the second demodulated signal, That is receiver can carry out signal demodulation by the time domain response sequence of channel, moreover it is possible to pass through the frequency response sequence of channel Column are demodulated, and the diversification of demodulation mode is realized.

Detailed description of the invention

Fig. 1 is a kind of method flow diagram of information processing provided by the embodiments of the present application；

Fig. 2A-Fig. 2 B is the structural schematic diagram of the frame preamble sequence of two kinds of frame transmission modes provided by the embodiments of the present application；

Fig. 3 is the structural block diagram of a kind of electronic equipment provided by the embodiments of the present application.

Specific embodiment

The embodiment of the present application is solved and is existed in the prior art by providing the method and electronic equipment of a kind of information processing Receiver the signal of the communication channel from IEEE802.11ad consensus standard received can not correctly be demodulated Technical problem gives a kind of communications channel estimation method so that receiver receive based on such as IEEE802.11ad its When the signal of the traffic channel of its network protocol, the transmission characteristic of the channel can be estimated according to this method, and according to The characteristic of channel correctly demodulates the signal received.

Technical solution in the embodiment of the present application is to solve the above problems, general thought is as follows:

The embodiment of the present application provides a kind of method of information processing, applied in the receiver in a communication system, institute The method of stating includes: in leading the first leader sequence and the second leader sequence that the physical layer frame in the first communication standard has been determined When, the communication channel reception by the communication system includes the first reception signal of the first transmitting signal and noise signal； First reception signal and first leader sequence are subjected to sliding related, the first correlated series of acquisition, and will described in It is related that first reception signal and second leader sequence carries out sliding, the second correlated series of acquisition；It is related based on described first Sequence and second correlated series, obtain the impulse response sequence of the communication channel；It is selected from the impulse response sequence Partial sequence is taken, channel frequency response sequence is obtained according to the partial sequence, and be based on the channel frequency response sequence pair Described first, which receives signal, carries out the first demodulation, obtains the first demodulated signal.

As it can be seen that in the embodiment of the present application, before leading first of the physical layer frame in the first communication standard has been determined It include the first transmitting signal and noise by the communication channel reception of the communication system when leading sequence and the second leader sequence The first of signal receives signal；First reception signal and first leader sequence are subjected to sliding related, acquisition first Correlated series, and the first reception signal and second leader sequence be subjected to sliding related, acquisition the second correlation sequence Column；Based on first correlated series and second correlated series, the impulse response sequence of the communication channel is obtained；From institute Selected part sequence in impulse response sequence is stated, channel frequency response sequence is obtained according to the partial sequence, and based on described Channel frequency response sequence receives signal to described first and carries out the first demodulation, obtains the first demodulated signal.As it can be seen that communication system In communication channel according to the first communication standard carry out signal transmission when, receiver after receiving the first reception signal, will First receive signal respectively with the physical layer frame in first communication standard it is leading in the first leader sequence and second before Leading sequence, to carry out sliding related, obtains the first correlated series and the second correlated series, and is acquired based on two correlated series described The impulse response sequence of communication channel, then the channel frequency for being able to reflect the characteristic of channel is determined based on the impulse response sequence Response sequence, and receive signal to first and carry out the first demodulation, the first demodulated signal is obtained, is solved existing in the prior art The skill that receiver can not correctly demodulate the signal of the communication channel from IEEE802.11ad consensus standard received Art problem is realized by providing a kind of communications channel estimation method, so that receiver is being received based on such as When the signal of the traffic channel of other network protocols such as IEEE802.11ad, the channel can be estimated according to this method Transmission characteristic, and correctly demodulate according to the characteristic of channel technical effect of the signal received.

In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper It states technical solution to be described in detail, it should be understood that the specific features in the embodiment of the present application and embodiment are to the application The detailed description of technical solution, rather than the restriction to technical scheme, in the absence of conflict, the application are implemented Technical characteristic in example and embodiment can be combined with each other.

Embodiment one

Referring to FIG. 1, the embodiment of the present application provides a kind of method of information processing, it is mainly used in a wireless communication system In receiver in system, described method includes following steps:

S101: in the first leader sequence and the second leader sequence that the physical layer frame in the first communication standard has been determined, Communication channel reception by the communication system includes the first reception signal of the first transmitting signal and noise signal；

S102: the first reception signal and first leader sequence are subjected to sliding related, acquisition the first correlation sequence Column, and the first reception signal and second leader sequence be subjected to sliding related, the second correlated series of acquisition；

S103: first correlated series and second correlated series are based on, when obtaining the channel of the communication channel Domain response sequence；

S104: the selected part sequence from the channel time domain response sequence obtains channel frequency according to the partial sequence Rate response sequence, and signal is received to described first based on the channel frequency response sequence and carries out the first demodulation, obtain first Demodulated signal.

Specifically, by taking the first communication standard is IEEE802.11ad consensus standard as an example, IEEE802.11ad physical layer frame It is leading include STF(Short Training Field) and CEF(Channel Estimation Field), STF and CEF are equal By Ga₁₂₈、-Ga₁₂₈、Gb₁₂₈、-Gb₁₂₈Sequence composition.Wherein, Ga₁₂₈And Gb₁₂₈It is a pair of complementary Golay sequence.

IEEE802.11ad consensus standard supports different application scenarios different physical layer types, supports a variety of Physical layer type, including control physical layer (Control PHY), single carrier physical layer (SC PHY), low-power consumption single carrier physics Layer (Low Power SC PHY) and orthogonal frequency division multiplexing physical layer (OFDM PHY).Control PHY is for low signal-to-noise ratio Operation and design, force to use single carrier model, data rate is up to 27.5Mbit/s.SC PHY allows low-power consumption, low The transceiver of complexity, the maximum data rate of support is up to 4.6Gbit/s.Low Power SC PHY passes through simplified coding Mode and shorter symbolic construction reduce the processing power of transceiver, and the maximum data rate of support is 2.6Gbit/s.OFDM PHY can realize better performance in frequency-selective channel.SC PHY has different use scopes from OFDM PHY: OFDM PHY is suitable for the transmission under long propagation distance, big extension case propagation delays, can handle multipath-propagated signal；SC PHY Lower power consumption is generally obtained, is suitable for using in small-sized, low-power handheld device.

Wherein, the leading structure of Control PHY, SC PHY and Low Power SC PHY are as shown in Figure 2 A, OFDM The leading structure of PHY is as shown in Figure 2 B.By Fig. 2A, Fig. 2 B it is found that Gu₅₁₂Sequence by 4 128 long Golay sequences (- Gb₁₂₈、-Ga₁₂₈、Gb₁₂₈、-Ga₁₂₈) composition, Gv₅₁₂Sequence is by 4 128 long Golay sequence (- Gb₁₂₈、Ga₁₂₈、-Gb₁₂₈、- Ga₁₂₈) composition.In the embodiment of the present application, when the first communication standard be IEEE802.11ad when, physical layer frame it is leading First leading is specifically as follows Gu₅₁₂Sequence, second leading are specifically as follows Gv₅₁₂Sequence.

In the specific implementation process, since in a wireless communication system, the first transmitting signal of transmitter transmitting is by logical After believing transmission, noise signal can be added, so that the signal that receiver obtains is to include the first transmitting signal and noise letter Number first receive signal.In the embodiment of the present application, when carrying out channel estimation, receiver first by first receive signal with Gu₅₁₂Sequence carries out sliding correlation, obtains the first correlated series, and receive signal and Gv for first₅₁₂Sequence carries out sliding phase It closes, obtains the second correlated series.

Specifically, during obtaining the first correlated series and the second correlated series, in order to be based on physical layer frame Frame format standard from first receive signal in determine the first estimated sequence (i.e. first receive signal preamble sequence in part Sequence), channel estimation is carried out so as to make full use of in the first communication protocol standard physical layer frame format, step S102: First reception signal and first leader sequence are subjected to sliding related, the first correlated series of acquisition, and will described in First reception signal and second leader sequence carries out that sliding is related, and the second correlated series of acquisition specifically include:

That is, the receiving end of communication system after getting the first reception signal, can be based on physical layer frame lattice first Formula standard carries out frame synchronization to signal is received, and obtains the first estimated sequence for channel estimation, defines the first estimation sequence here Column-the Ga last comprising STF₁₂₈Sequence and entire CEF sequence.In conjunction with Fig. 2A and Fig. 2 B it is found that the first estimated sequence is a length of 1280, that is, include 1280 numbers, if the first estimated sequence of note is r(n), wherein n value is the integer between 0~1279 (including 0 and 1279).

Further, if the first correlated series are Cu (k), then the first correlation can be obtained through but not limited to formula (a) Sequence, formula (a) are expressed as follows:

Wherein, 0≤n=i+k≤1279,0≤i≤511, it is known that, k=0,1 ..., 768

If the second correlated series are Cv (k), then can obtain the second correlated series, formula through but not limited to formula (b) (b) it is expressed as follows:

Wherein, 0≤n=i+k≤1279,0≤i≤511, it is known that, k=0,1 ..., 768

Further, in order to being based on the first correlated series and the second correlated series acquisition of communication channels signal transmission side Formula, and communications channel estimation is carried out in conjunction with transmission mode, step S103: it is based on first correlated series and second phase Sequence is closed, the channel time domain response sequence of the communication channel is obtained, specifically includes step:

In the specific implementation process, in order to the first communication standard have a variety of frame transmission modes when, determine the first biography Defeated mode, it is described to be based on first correlated series and second correlated series, determine that the communication channel is based on described the One communication standard transmits the transmission mode of signal, specifically includes:

Obtain the second sequential value in the First ray value and second correlated series in first correlated series；Its In, First ray value and the second sequential value are value when k takes 128, and the first correlated series are Cu (k), and First ray value is Cu (128), the second correlated series are Cv (k), and First ray value is Cv (128)；

When first judging result, which is, is, determine that the transmission mode is the first transmission mode；

Specifically, obtaining transmission mode under IEEE802.11ad consensus standard includes: Control PHY transmission mode, SC PHY transmission mode, Low Power SC PHY transmission mode and OFDM PHY transmission mode.Firstly, related by comparing first Square of the mould of Cu (128) in sequence C u (k) | Cu (128) |²With the mould of the Cv (128) in the second correlated series Cv (k) Square | Cv (128) |².When | Cu (128) |²It is greater than | Cv (128) |²When, then judge the transmission mode of the frame for Control PHY Transmission mode or SC PHY transmission mode or Low Power SC PHY transmission mode；Otherwise, the transmission mode for judging the frame is OFDM PHY transmission mode.

It further, is the first transmission mode (Control PHY transmission mode or SC in the transmission mode for judging to learn the frame PHY transmission mode or Low Power SC PHY transmission mode) when, in order to estimate logical when estimating channel time domain response Believe the communication characteristic of each diameter in channel near the front and back of the diameter at synchronous place, so that channel equalization is more accurate, it is described to be based on The transmission mode, first correlated series and second correlated series, when obtaining the channel of the communication channel Domain response sequence, specifically:

Based on the top n value in first correlated series and rear N number of value in second correlated series, described in acquisition First time domain impulse response sequence of communication channel, wherein related comprising M value, described second in first correlated series Comprising M value in sequence, M is positive integer, and N is the positive integer less than or equal to M.Specifically, the first correlated series Cu (k) and the Two correlation sequence C v (k) separately include 769 numerical value (i.e. M=769), by preceding 257(, that is, N of the first correlated series Cu (k)= 257) it is a value (Cu (k), k=0,1 ..., 256) and the second correlated series Cv (k) it is rear 257 value (Cv (512+k), k=0, 1 ..., 256) corresponding to be added again divided by 512, it is averaged again later (i.e. divided by 2), the first time domain impulse for obtaining communication channel is rung Answer sequences h₁(k), shown in calculation formula such as formula (c):

Wherein, k=0,1 ..., 256.

Further, in order to which when calculating channel frequency response, according to the characteristic of channel, removal is disturbed biggish channel time domain Response, and selected part is interference-free or is disturbed lesser channel time domain response transform to frequency domain, thus reduce noise with The influence to channel frequency response is interfered, so that channel frequency response is more accurate, step S104: is responded from the channel time domain Selected part sequence in sequence is obtained channel frequency response sequence according to the partial sequence, and is rung based on the channel frequency It answers sequence to receive signal to described first and carries out the first demodulation, obtain the first demodulated signal, specifically include:

Signal is received to described first based on the channel frequency response and carries out the first demodulation, obtains the first demodulation letter Number.

Specifically, choosing the first time domain impulse response sequences h₁(k) a part of sequence { h₁(128-L₂),…,h₁ (127),h₁(128),h₁(129),…,h₁(128+L₁), frequency domain is transformed to, obtains the frequency response of communication channel, wherein L₁ And L₂It is the integer greater than 0 and less than or equal to 128.It is clear that the first time domain impulse response sequences h₁It (k) include 257 in Number, the partial sequence { h₁(128-L₂),…,h₁(127),h₁(128),h₁(129),…,h₁(128+L₁) in number number Less than or equal to 257.

Due to h₁(0) and h₁(256) channel time domain response nearby is affected and inaccurate by multi-path jamming, By h when calculating channel frequency response₁(0) and h₁(256) channel time domain response nearby, which is given up, can reduce multi-path jamming to channel Transmit bring adverse effect.Meanwhile far from h₁(128) true channel time domain response amplitude meeting very little, then estimate Channel time domain response is opposite to contain biggish noise, therefore, when calculating channel frequency response, by h₁(0) and h₁(256) attached Close channel time domain response, which is given up, can reduce the interference of noise bring.On the other hand, if L₁And L₂Value it is excessive, then lose Channel time domain response can be excessive, and channel frequency response can become inaccuracy.Therefore, L₁And L₂Value should be according to the characteristic of channel depending on, It just can guarantee the first time domain impulse response sequences h₁(k) partial sequence in includes enough channel time domain responses.

It calculates channel frequency response and needs a kind of typical method depending on the demand of frequency equalizing algorithm are as follows:

Firstly, to the partial sequence { h₁(128-L₂),...,h₁(127),h₁(128),h₁(129),...,h₁(128+ L₁) zero padding is carried out, thus the partial sequence after the length adjustment obtained, the principle of zero padding is to makeLength meet The balanced required channel frequency response length of channel frequency.Expression such as formula (d) shown in:

Wherein, l=0,1 ..., X-1, X are the length of channel frequency response needed for frequency domain equalization, for IEEE802.11ad consensus standard, X are preferably set to 512.According toCalculate channel frequency response signal H₁(m) method can be used But it is not limited to the discrete fourier transform algorithm DFT that following formula (e) is stated:

Wherein, 0≤m≤X-1, and m is integer.

In addition, when the transmission mode for judging to learn the frame is the second transmission mode (OFDM PHY transmission mode), in order to When estimating channel time domain response, the communication special of each diameter in communication channel near the front and back of the diameter at synchronous place has been estimated Property, so that channel equalization is more accurate, it is described to be based on the transmission mode, first correlated series sequence related to described second Column, obtain the channel time domain response sequence of the communication channel, specifically:

Based on rear N number of value in first correlated series and the top n value in second correlated series, described in acquisition Second time domain impulse response sequence of communication channel, wherein related comprising M value, described second in first correlated series Comprising M value in sequence, M is positive integer, and N is the positive integer less than or equal to M.Specifically, the first correlated series Cu (k) and the Two correlation sequence C v (k) separately include 769 numerical value (i.e. M=769), by rear 257(, that is, N of the first correlated series Cu (k)= 257) it is a value (Cu (512+k), k=0,1 ..., 256) with the second correlated series Cv (k) it is preceding 257 value (Cv (k), k=0, 1 ..., it is 256) corresponding be added again divided by 512, be averaged again later (i.e. divided by 2), obtain the second time domain impulse of communication channel Response sequence h₂(k), shown in calculation formula such as formula (f):

Wherein, k=0,1 ..., 256.

Signal is received to described first based on the channel frequency response sequence and carries out the first demodulation, obtains first solution Adjust signal.

Pass through the second time domain impulse response sequence when frame transmission mode is the second transmission mode in specific implementation process Column obtain channel frequency response sequence, and determine channel frequency response sequence, further receive signal to first and carry out first Demodulation obtains the specific implementation method of the first demodulated signal, is the specific embodiment party of the first transmission mode with above-mentioned frame transmission mode Method no longer repeats one by one here.

In addition, in the specific implementation process, in order to enable receiver can carry out letter by the time domain response sequence of channel Number demodulation, moreover it is possible to demodulated by the frequency response sequence of channel, realize the diversification of demodulation mode, in step S103: Based on first correlated series and second correlated series, obtain the communication channel channel time domain response sequence it Afterwards, the method also includes:

Embodiment two

Based on the same inventive concept, the embodiment of the present application also provides a kind of electronic equipment, referring to FIG. 3, being applied to one In communication system, the electronic equipment includes:

First receiving unit 301, for leading in leading first that the physical layer frame in the first communication standard has been determined When sequence and the second leader sequence, the communication channel reception by the communication system includes that the first transmitting signal and noise are believed Number first receive signal；

First acquisition unit 302, it is related for the first reception signal and first leader sequence to be carried out sliding, Obtain the first correlated series, and that the first reception signal and second leader sequence carried out sliding is related, acquisition the Two correlated series；

Second acquisition unit 303 obtains described logical for being based on first correlated series and second correlated series Believe the channel time domain response sequence of channel；

Third acquiring unit 304, for the selected part sequence from the channel time domain response sequence, according to the part Sequence obtains channel frequency response sequence, and receives signal to described first based on the channel frequency response sequence and carry out first Demodulation obtains the first demodulated signal.

Specifically, determining the first estimation sequence in signal in order to receive based on the frame format standard of physical layer frame from first Column (i.e. first receives the partial sequence in the preamble sequence of signal), so as to make full use of object in the first communication protocol standard Layer frame format is managed to carry out channel estimation, the first acquisition unit 302 specifically includes:

Further, in order to being based on the first correlated series and the second correlated series acquisition of communication channels signal transmission side Formula, and communications channel estimation is carried out in conjunction with transmission mode, the second acquisition unit 303 specifically includes:

Specifically, the first transmission mode is determined in order to when the first communication standard has a variety of frame transmission modes, it is described First determines subelement, specifically includes:

Further, in order to frame transmission mode be the first transmission mode when, can estimate channel time domain response when, estimation Go out the communication characteristic of each diameter in communication channel near the front and back of the diameter at synchronous place, so that channel equalization is more accurate, institute The second acquisition subelement is stated, specifically:

Further, in order to frame transmission mode be the first transmission mode when, can when calculating channel frequency response, according to The characteristic of channel, removal are disturbed the response of biggish channel time domain, and selected part is interference-free or when being disturbed lesser channel Domain response transforms to frequency domain, to reduce the influence of noise and interference to channel frequency response, the third acquiring unit 304, it specifically includes:

4th obtains subelement, carries out the first solution for receiving signal to described first based on the channel frequency response It adjusts, obtains first demodulated signal.

In addition, being determined different from the first transmission mode in order to when the first communication standard has a variety of frame transmission modes The second transmission mode, it is described first determine subelement further include:

Further, in order to frame transmission mode be the second transmission mode when, can estimate channel time domain response when, estimation Go out the communication characteristic of each diameter in communication channel near the front and back of the diameter at synchronous place, so that channel equalization is more accurate, institute The second acquisition subelement is stated, specifically:

Further, in order to frame transmission mode be the second transmission mode when, can when calculating channel frequency response, according to The characteristic of channel, removal are disturbed the response of biggish channel time domain, and selected part is interference-free or when being disturbed lesser channel Domain response transforms to frequency domain, to reduce the influence of noise and interference to channel frequency response, the third acquiring unit 304, it specifically includes:

In the specific implementation process, in order to enable receiver can carry out signal solution by the time domain response sequence of channel It adjusts, moreover it is possible to be demodulated by the frequency response sequence of channel, realize the diversification of demodulation mode, the electronic equipment also wraps It includes:

As described above, above-mentioned electronic equipment is for realizing above- mentioned information processing method, so, the electronic equipment The course of work is consistent with one or more embodiments of the above method, just no longer repeats one by one herein.

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Specifically, the corresponding computer program instructions of information processing method in the embodiment of the present application can be stored in CD, hard disk, on the storage mediums such as USB flash disk, when the computer program instructions corresponding with the information processing method in storage medium It is read or is performed by an electronic equipment, include the following steps:

Optionally, what is stored in the storage medium receives signal and first leader sequence for described first with step It is related to carry out sliding, obtains the first correlated series, and the first reception signal is slided with second leader sequence Dynamic correlation, obtains the second correlated series, and corresponding computer instruction specifically comprises the following steps: during being specifically performed

Optionally, what is stored in the storage medium is based on first correlated series and the second related sequence to step Column obtain the channel time domain response sequence of the communication channel, and corresponding computer instruction is during being specifically performed, specifically Include the following steps:

Optionally, what is stored in the storage medium is based on first correlated series and the second related sequence to step Column, determine transmission mode of the communication channel based on first communication standard transmission signal, and corresponding computer instruction exists During being specifically performed, specifically comprise the following steps:

Optionally, stored in the storage medium with step be based on the transmission mode, first correlated series and Second correlated series, obtain the channel time domain response sequence of the communication channel, and corresponding computer instruction is having During body is performed, specially following steps:

Optionally, stored in the storage medium and step selected part sequence from the channel time domain response sequence Column obtain channel frequency response sequence according to the partial sequence, and based on the channel frequency response sequence to described first It receives signal and carries out the first demodulation, obtain the first demodulated signal, corresponding computer instruction is during being specifically performed, specifically Include the following steps:

Optionally, be also stored with other computer instruction in the storage medium, these computer instructions with step It is rapid: in square of the mould for square whether being greater than second sequential value of the mould for judging the First ray value, to obtain the The corresponding computer instruction of one judging result is performed after being performed, and is included the following steps: when executed

Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of information processing method, applied in the receiver in a communication system, which comprises

In the first leader sequence and the second leader sequence that the physical layer frame in IEEE 802.11ad has been determined, by described The communication channel reception of communication system includes the first reception signal of the first transmitting signal and noise signal；

First reception signal and first leader sequence are subjected to sliding related, the first correlated series of acquisition, and general It is related that first reception signal and second leader sequence carry out sliding, the second correlated series of acquisition；

Based on first correlated series and second correlated series, the channel time domain response sequence of the communication channel is obtained Column；

The selected part sequence from the channel time domain response sequence obtains channel frequency response sequence according to the partial sequence Column, and signal is received to described first based on the channel frequency response sequence and carries out the first demodulation, obtain the first demodulated signal.

2. the method as described in claim 1, which is characterized in that described to receive signal and the described first leading sequence for described first Column carry out sliding correlation, obtain the first correlated series, and the first reception signal and second leader sequence are carried out Sliding is related, obtains the second correlated series, specifically includes:

Signal is received to described first based on the frame format standard of the physical layer frame and carries out frame synchronization, to receive from described first The first estimated sequence for channel estimation is determined in signal；

It is related that first estimated sequence and first leader sequence are subjected to sliding, obtain first correlated series, with And that first estimated sequence and second leader sequence carried out sliding is related, obtains second correlated series.

3. the method as described in any claim of claims 1 or 2, which is characterized in that it is described based on first correlated series and Second correlated series obtain the channel time domain response sequence of the communication channel, specifically include:

Based on first correlated series and second correlated series, determine that the communication channel is based on the IEEE 802.11ad transmitting the transmission mode of signal；

Based on the transmission mode, first correlated series and second correlated series, the institute of the communication channel is obtained State channel time domain response sequence.

4. method as claimed in claim 3, which is characterized in that described related to described second based on first correlated series Sequence determines transmission mode of the communication channel based on IEEE 802.11ad transmission signal, specifically includes:

The mould and the second sequential value in second correlated series for obtaining the First ray value in first correlated series Mould；

Judge the mould of the First ray value square whether be greater than second sequential value mould square, obtain first judgement As a result；

5. method as claimed in claim 4, which is characterized in that described to be based on the transmission mode, first correlated series With second correlated series, the channel time domain response sequence of the communication channel is obtained, specifically:

Based on the top n value in first correlated series and rear N number of value in second correlated series, the communication is obtained First time domain impulse response sequence of channel, wherein include M value, second correlated series in first correlated series In comprising M value, M is positive integer, and N is the positive integer less than or equal to M.

6. method as claimed in claim 5, which is characterized in that the selected part sequence from the channel time domain response sequence Column are obtained channel frequency response sequence according to the partial sequence, and are received based on the channel frequency sequence to described first Signal carries out the first demodulation, obtains the first demodulated signal, specifically includes:

The partial sequence is chosen from the first time domain impulse response sequence, and the letter is obtained according to the partial sequence Road frequency response sequence, wherein include N number of value in the first time domain impulse response sequence, include P in the partial sequence Value, P are the positive integer less than or equal to N；

Signal is received to described first based on the channel frequency response sequence and carries out first demodulation, obtains first solution Adjust signal.

7. method as claimed in claim 4, which is characterized in that the mould for judging the First ray value square whether Greater than square of the mould of second sequential value, after obtaining the first judging result, the method also includes:

When first judging result is no, determine that the transmission mode is second biography different from first transmission mode Defeated mode.

8. the method for claim 7, which is characterized in that described to be based on the transmission mode, first correlated series With second correlated series, the channel time domain response sequence of the communication channel is obtained, specifically:

Based on rear N number of value in first correlated series and the top n value in second correlated series, the communication is obtained Second time domain impulse response sequence of channel, wherein include M value, second correlated series in first correlated series In comprising M value, M is positive integer, and N is the positive integer less than or equal to M.

9. method according to claim 8, which is characterized in that the selected part sequence from the channel time domain response sequence Column obtain channel frequency response sequence according to the partial sequence, and based on the channel frequency response sequence to described first It receives signal and carries out the first demodulation, obtain the first demodulated signal, specifically include:

The partial sequence is chosen from the second time domain impulse response sequence, and the letter is obtained according to the partial sequence Road frequency response sequence, wherein include N number of value in the second time domain impulse response sequence, include P in the partial sequence Value, P are the positive integer less than or equal to N；

10. the method as described in any claim of claims 1 or 2, which is characterized in that be based on first correlated series described With second correlated series, after the channel time domain response sequence for obtaining the communication channel, the method also includes:

Signal is received to described first based on the channel time domain response sequence and carries out the second demodulation, obtains the second demodulated signal.

11. a kind of electronic equipment is applied in a communication system, the electronic equipment includes:

First receiving unit, for before the first leader sequence and second of the physical layer frame in IEEE 802.11ad has been determined When leading sequence, the communication channel reception by the communication system includes the first reception of the first transmitting signal and noise signal Signal；

First acquisition unit, acquisition the related for the first reception signal and first leader sequence to be carried out sliding One correlated series, and the first reception signal and second leader sequence be subjected to sliding related, the second correlation of acquisition Sequence；

Second acquisition unit obtains the communication channel for being based on first correlated series and second correlated series Channel time domain response sequence；

Third acquiring unit is obtained for the selected part sequence from the channel time domain response sequence according to the partial sequence Channel frequency response sequence is obtained, and signal is received to described first based on the channel frequency response sequence and carries out the first demodulation, Obtain the first demodulated signal.

12. electronic equipment as claimed in claim 11, which is characterized in that the first acquisition unit specifically includes:

It is same to receive signal progress frame to described first for the frame format standard based on the physical layer frame for first synchronous subelement Step, to determine the first estimated sequence for channel estimation from the first reception signal；

First obtains subelement, for first estimated sequence and first leader sequence are carried out sliding related, acquisition First correlated series, and that first estimated sequence and second leader sequence carried out sliding is related, obtains institute State the second correlated series.

13. the electronic equipment as described in any claim of claim 11 or 12, which is characterized in that the second acquisition unit, tool Body includes:

First determines subelement, for being based on first correlated series and second correlated series, determines the communication letter Transmission mode of the road based on IEEE 802.11ad transmission signal；

Second obtains subelement, for being based on the transmission mode, first correlated series and second correlated series, obtains Obtain the channel time domain response sequence of the communication channel.

14. electronic equipment as claimed in claim 13, which is characterized in that described first determines subelement, specifically includes:

First obtains module, for obtaining the mould and second correlated series of the First ray value in first correlated series In the second sequential value mould；

First judgment module, the mould for square whether being greater than second sequential value of the mould for judging the First ray value Square, obtain the first judging result；

15. electronic equipment as claimed in claim 14, which is characterized in that described second obtains subelement, specifically:

16. electronic equipment as claimed in claim 15, which is characterized in that the third acquiring unit specifically includes:

Third obtains subelement, for choosing the partial sequence from the first time domain impulse response sequence, and according to institute It states partial sequence and obtains the channel frequency response sequence, wherein it include N number of value in the first time domain impulse response sequence, Comprising P value in the partial sequence, P is the positive integer less than or equal to N；

4th obtains subelement, carries out described first for receiving signal to described first based on the channel frequency response sequence Demodulation obtains first demodulated signal.

17. electronic equipment as claimed in claim 14, which is characterized in that described first determines subelement further include:

Second determining module, for judge in the first judgment module First ray value mould square whether be greater than institute Square of the mould of the second sequential value is stated, after obtaining the first judging result, when first judging result is no, described in determination Transmission mode is second transmission mode different from first transmission mode.

18. electronic equipment as claimed in claim 17, which is characterized in that described second obtains subelement, specifically:

19. electronic equipment as claimed in claim 18, which is characterized in that the third acquiring unit specifically includes:

5th obtains subelement, for choosing the partial sequence from the second time domain impulse response sequence, and according to institute It states partial sequence and obtains the channel frequency response sequence, wherein it include N number of value in the second time domain impulse response sequence, Comprising P value in the partial sequence, P is the positive integer less than or equal to N；

6th obtains subelement, carries out described first for receiving signal to described first based on the channel frequency response sequence Demodulation obtains first demodulated signal.

20. the electronic equipment as described in any claim of claim 11 or 12, which is characterized in that the electronic equipment further include:

4th acquiring unit, for being based on first correlated series sequence related to described second in the second acquisition unit It arranges, after the channel time domain response sequence for obtaining the communication channel, based on the channel time domain response sequence to described first It receives signal and carries out the second demodulation, obtain the second demodulated signal.