CN103095393A - Method and device and system for sending and receiving signal - Google Patents

Abstract

The invention provides a method, a device and a system for sending and receiving a signal and relates to the field of communication. The method, the device and the system can enhance signal covering effect. The method comprises that a wireless frame containing a control block and a business data block and sent by a sending terminal is received; wherein, the control block comprises a first control sub block used for ordering business data block information; the first control sub block sends a signal once or at least sends the signal once in a copying mode in a specific range and the business data block sends a signal once or at least sends the signal once in the copying mode; the first control sub block is fixed on the position where the first control sub block occurs in the wireless frame for the first time; after the first control sub block is synchronic with the sending terminal, the position where the first control sub block occurs for the first time is found, the first control sub block is detected and the business data block information is obtained; sending times of the first control sub block and sending times of the business data block are obtained; and demodulation and decoding are conducted on the business data block according to the sending times of the business data block and the business data block information. The method, the device and the system for sending and receiving the signal are used for data communication.

Description

A kind of signal sending, receiving method, equipment and system

Technical field

The present invention relates to the communications field, relate in particular to a kind of signal sending, receiving method, equipment and system.

Background technology

In IEEE 802.11 agreements, minute a lot of agreement branch, the scene of different drop applications or service application type are different.Such as, some supports the low speed data transmission, some can support higher transfer of data, and existing agreement branch general mainly is applicable to indoor covering, covering radius is little, in general 100 meters～200 meters, ieee standard is organized and is entered on formulating the agreement branch that is referred to as 802.11ah, and this agreement branch requires the covering radius of outdoor cover can support 1000 meters, working frequency range can be supported low speed data transmission and high speed data transfer simultaneously below 1GHz.

Along with the support to covering radius requires to strengthen, so problem has appearred, even if namely transmitting terminal is encoded with the minimum encoder bit rate that allows, power emission data with maximum, because covering radius increases, the signal power that receiving terminal is received may be still very little, thereby cause data to accept performance, such as error probability, do not reach requirement.

Summary of the invention

Embodiments of the invention provide a kind of signal sending, receiving method, equipment and system, can improve the data receiver accuracy rate of receiving terminal.

For achieving the above object, embodiments of the invention adopt following technical scheme:

On the one hand, provide a kind of signaling method, comprising:

Send the radio frames that comprises controll block and business datum piece to receiving terminal;

In described radio frames, described controll block comprises the first control sub-block that is used to indicate described business datum block message; And described the first control sub-block sends and once or at least copies transmission once in prescribed limit, and described business datum piece sends and once or at least copies transmission once; The position that described the first control sub-block occurs in described radio frames is for the first time fixed.

On the one hand, provide a kind of signal acceptance method, comprising:

The radio frames that comprises controll block and business datum piece that receiving end/sending end sends; In described radio frames, described controll block comprises the first control sub-block that is used to indicate described business datum block message; And described first controls the sub-block transmission once or at least copies transmission once, and described business datum piece sends and once or at least copies transmission once; The position that described the first control sub-block occurs in described radio frames is for the first time fixed;

Control sub-block to described first and detect, obtain the information of described business datum piece;

Obtain described first and control the transmission times of sub-block and the transmission times of described business datum piece;

According to the transmission times of described the first control sub-block that obtains, the transmission times of described business datum piece, the information of described business datum piece, described business datum piece is carried out demodulation coding.

On the one hand, provide a kind of signal sending end equipment, comprising:

The signal generation unit is used for generating the radio frames that comprises controll block and business datum piece; In described radio frames, described controll block comprises the first control sub-block that is used to indicate described business datum block message; And described the first control sub-block generates and once or at least copies generation once in prescribed limit, and described business datum piece generates and once or at least copies generation once; The position that described the first control sub-block occurs in described radio frames is for the first time fixed;

Transmitting element is used for sending described radio frames to receiving terminal.

On the one hand, provide a kind of receiving device of signal, comprising:

Receiving element is used for the radio frames that comprises controll block and business datum piece that receiving end/sending end sends; In described radio frames, described controll block comprises the first control sub-block that is used to indicate described business datum block message; And described the first control sub-block sends and once or at least copies transmission once in prescribed limit, and described business datum piece sends and once or at least copies transmission once; The position that described the first control sub-block occurs in described radio frames is for the first time fixed;

The controll block processing unit is used for controlling sub-block to described first and detects, and obtains the information of described business datum piece; Obtain the transmission times of described the first control sub-block;

Data service piece processing unit is for the transmission times that obtains described business datum piece; According to the transmission times of described the first control sub-block that obtains, the transmission times of described business datum piece, the information of described business datum piece, described business datum piece is carried out demodulation coding.

On the one hand, provide a kind of communication system, comprising:

Sending ending equipment is used for sending to receiving terminal the radio frames that comprises controll block and business datum piece; In described radio frames, described controll block comprises the first control sub-block that is used to indicate described business datum block message; And described the first control sub-block sends and once or at least copies transmission once in prescribed limit, and described business datum piece sends and once or at least copies transmission once; The position that described the first control sub-block occurs in described radio frames is for the first time fixed;

Receiving device is used for receiving the described radio frames that comprises controll block and business datum piece that described sending ending equipment sends; Control sub-block to described first and detect, obtain the information of described business datum piece; Obtain described first and control the transmission times of sub-block and the transmission times of described business datum piece; According to the transmission times of described the first control sub-block that obtains, the transmission times of described business datum piece, the information of described business datum piece, described business datum piece is carried out demodulation coding.

The signal sending, receiving method that the embodiment of the present invention provides, equipment and system, transmitting terminal send to receiving terminal and comprise one or copy repeatedly the first radio frames of controlling sub-block and business datum piece; After receiving terminal receives this radio frames, can the first controll block that copy repeatedly be detected, thereby guarantee effectively to obtain the information of business datum piece, according to the number of the first number of controlling sub-block that obtains, business datum block message, business datum piece, the business datum piece is carried out effective demodulation coding again.Like this, by the processing of decoding of the business datum piece of first of multiple copies being controlled sub-block and copy, can improve the accuracy of obtaining data message, thereby after having solved the covering radius increase, due to the too little low problem of data receiver performance that causes of signal power of receiving terminal reception.

Description of drawings

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The signaling method schematic flow sheet that Fig. 1 provides for the embodiment of the present invention one;

The signal acceptance method schematic flow sheet that Fig. 2 provides for the embodiment of the present invention two;

The signal sending, receiving method schematic flow sheet one that Fig. 3 provides for the embodiment of the present invention three;

Generate the structural representation of radio frames in the signal sending, receiving method that Fig. 4 provides for the embodiment of the present invention three;

The signal sending, receiving method schematic flow sheet two that Fig. 5 provides for the embodiment of the present invention four;

The signal sending, receiving method schematic flow sheet three that Fig. 6 provides for the embodiment of the present invention five;

The signal sending, receiving method schematic flow sheet four that Fig. 7 provides for the embodiment of the present invention six;

The structural representation of the signal sending end equipment that Fig. 8 provides for the embodiment of the present invention seven;

The structural representation of the signal receiving end equipment that Fig. 9 provides for the embodiment of the present invention eight;

The organigram of the communication system that Figure 10 provides for the embodiment of the present invention nine.

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, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.

Embodiment one

The signaling method that the embodiment of the present invention provides, as shown in Figure 1, the method step comprises:

S101, transmitting terminal send the radio frames that comprises controll block and business datum piece to receiving terminal; In this radio frames, controll block comprises the first control sub-block that is used to indicate the business datum block message; And the first control sub-block sends and once or at least copies transmission once in prescribed limit, and the business datum piece sends and once or at least copies transmission once; The position that the first control sub-block occurs in radio frames is for the first time fixed.

It is worthy of note, the position that occurs for the first time in radio frames is fixed, and that is to say, in radio frames, the first shared time span of other parts of controlling before the sub-block original position is fixed, and first controls sub-block and business datum piece philosophy to copy how many times irrelevant.

Wherein, can also comprise in this controll block for second of support time and Frequency Synchronization and control sub-block and be used for supporting the 3rd of channel estimating to control sub-block, but because the controll block in each agreement is different, just for example, protection range is not limited to this herein.

Exemplary, in radio frames, can be according to preset rules, as agreement etc., control with first the number of times that sub-block copies and be limited in predefined scope; The number of times that the business datum piece is copied also is limited in predefined scope; Both scopes can be identical, also can be different, and predefined scope can be according to actual operating position regulation.

Further, can also carry the sign that sub-block transmission times and/or business datum piece transmission times are controlled in indication first in this first control sub-block.

The signaling method that the embodiment of the present invention provides, transmitting terminal send to receiving terminal and comprise one or copy repeatedly the first radio frames of controlling sub-block and business datum piece; After receiving terminal receives this radio frames, can the first controll block that copy repeatedly be detected, thereby guarantee effectively to obtain the information of business datum piece, according to the number of the first number of controlling sub-block that obtains, business datum block message, business datum piece, the business datum piece is carried out effective demodulation coding again.Like this, by the processing of decoding of the business datum piece of first of multiple copies being controlled sub-block and copy, can improve the accuracy of obtaining data message, thereby after having solved the covering radius increase, due to the too little low problem of data receiver performance that causes of signal power of receiving terminal reception.

Embodiment two

The signal acceptance method that the embodiment of the present invention provides, as shown in Figure 2, the method step comprises:

The radio frames that comprises controll block and business datum piece that S201, receiving terminal receiving end/sending end send; In this radio frames, controll block comprises the first control sub-block that is used to indicate the business datum block message; And the first control sub-block sends and once or at least copies transmission once in prescribed limit, and the business datum piece sends and once or at least copies transmission once; The position that the first control sub-block occurs in radio frames is for the first time fixed.

Further, the transmission times of the first control sub-block that comprises in the radio frames that receiving terminal receives may be identical in prescribed limit with the transmission times of business datum piece, also may be different.

In addition, can also carry the sign that sub-block transmission times and/or business datum piece transmission times are controlled in indication first in the first control sub-block that receives.

S202, control sub-block to first and detect, obtain the information of business datum piece; Obtain first and control the transmission times of sub-block and the transmission times of business datum piece.

S203, receiving terminal carry out demodulation coding according to the transmission times of the first control sub-block that obtains, the transmission times of business datum piece, the information of business datum piece to the business datum piece.

The signal acceptance method that the embodiment of the present invention provides, receiving terminal receives that transmitting terminal sends comprises first radio frames of controlling sub-block and business datum piece that copies repeatedly, the first controll block that copies is repeatedly detected demodulation coding, thereby guarantee effectively to obtain the information of business datum piece, according to the number of the first number of controlling sub-block that obtains, business datum block message, business datum piece, the business datum piece is carried out effective demodulation coding again.Like this, by the processing of decoding of the business datum piece of first of multiple copies being controlled sub-block and copy, can improve the accuracy of obtaining data message, thereby after having solved the covering radius increase, due to the too little low problem of data receiver performance that causes of signal power of receiving terminal reception.

Embodiment three

The signal sending, receiving method that the embodiment of the present invention provides is all mutually example with the first number of copy times of controlling the number of copy times of sub-block and business datum piece in radio frames and describes.As shown in Figure 3, the method step comprises:

S301, transmitting terminal generate the radio frames that comprises controll block and business datum piece, in this radio frames, controll block comprises and is used to indicate first of business datum block message and controls sub-block, be used for second of support time and Frequency Synchronization and control sub-block and be used for supporting the 3rd of channel estimating to control sub-block, and the first control sub-block copies transmission once at least in prescribed limit, and the business datum piece copies transmission once at least; The position that the first control sub-block occurs in radio frames is for the first time fixed.

Concrete, controll block can comprise that being mainly used in second of support time and Frequency Synchronization controls sub-block, for example X-STF in 802.11 systems (L-STF, HT-STF etc.); Be mainly used in supporting the 3rd of channel estimating to control sub-block, for example X-LTF in 802.11 systems (L-LTF, HT-LTF etc.); And be mainly used in the indicating services data block information, as the data volume size of indicating services data division, modulation coding mode, first of transmission processing method that adopts etc. information is controlled sub-block, the X-SIG in 802.11 systems (L-SIG, HT-SIG etc.) for example.And in the first control sub-block, information is with CRC check.

As shown in Figure 4, in the present embodiment, the original position of X-SIG is fixed, that is to say that all constituents before X-SIG is fixing in the relative time relation of a radio frames, in other words, in radio frames, the shared time span of other parts before the X-SIG original position is fixed, and X-SIG and business datum piece philosophy to copy how many times irrelevant.So find first X-SIG and know the transmission times of X-SIG, more just can infer the original position of other pieces in conjunction with the information of carrying in X-SIG on demand.

Here be noted that; use in the present embodiment following steps; in controll block first is controlled sub-block X-SIG, the second control sub-block X-STF and the 3rd title and the function of controlling sub-block X-LTF is a kind of exemplifying; can appropriate change; and also can be not limited to these three kinds in controll block and control sub-block; only there to be these three kinds to control sub-block as example, protection range is not limited to this herein.

In addition, in radio frames, according to preset rules, as agreement etc., the number of times that X-SIG is copied is limited in predefined scope; The number of times that the business datum piece is copied also is limited in predefined scope; Both copy in preset range separately, and number of copy times can be identical, also can be different, and predefined scope and number of copy times all can be according to actual operating position regulations.

S302, transmitting terminal send above-mentioned radio frames to receiving terminal.

Exemplary, transmitting terminal can adopt OFDM (Orthogonal Frequency Division Multiplexing, OFDM) modulation to send.X-SIG in the controll block that copies in radio frames, the business datum piece that copies can be mapped to respectively on the subcarrier of OFDM and transmit.So, no matter be X-SIG or business datum piece, different copying can adopt different Sequential Mapping data symbols to the OFDM symbol.As when sending X-SIG, suppose [a_1, a_2 ..., a_k] be the data symbol that X-SIG comprises, for the first time can by [a_1, a_2 ..., a_k] Sequential Mapping on the subcarrier of OFDM symbol, when copying for the second time, can be with certain cyclic shift Sequential Mapping to the subcarrier of another OFDM symbol, such as by [a_m, a_{m+1} ..., a_k, a_1 ..., a_{m-1}] Sequential Mapping to the subcarrier of another OFDM symbol, copy for the third time, copy etc. for the 4th time, all by that analogy.When copying, prosign is being put on frequency on different sub carrier, can obtain the diversity gain of frequency at every turn.

The radio frames that comprises controll block and business datum piece that S303, receiving terminal receiving end/sending end send.

S304, receiving terminal use second in controll block to control sub-block X-STF and carry out synchronously, because the position that X-SIG occurs is for the first time fixed, find the X-SIG that occurs for the first time, from the position that X-SIG occurs for the first time, get continuously the data of the shared resource size of N part X-SIG, and suppose that this N piece of data is all copying of X-SIG, carries out joint iterative demodulation and decoding and CRC check to it, if verification succeeds obtains information and the verification succeeds times N of business datum piece; If verification failure is got continuously the data of the shared resource size of M part X-SIG and carried out joint iterative demodulation and decoding and CRC check, until verification succeeds, obtain information and the verification succeeds number of times M of business datum piece.

Here, N, M are the integer in the afore mentioned rules scope, and value in a certain order.

After S305, verification succeeds, continue X-SIG is carried out demodulation coding and CRC check by part is cumulative, until the total check failure is defined as verification number of success accumulative total the transmission times of X-SIG to the previous verification number of times of total check failure.

S306, receiving terminal are defined as the transmission times of this X-SIG the transmission times of business datum piece.

S307, receiving terminal begin according to the transmission times of the X-SIG that obtains, the position that X-SIG occurs for the first time, determine space and end position that X-SIG takies, find the original position of business datum piece with this; According to the transmission times of the business datum piece that obtains, the information of business datum piece, the business datum piece is carried out demodulation coding.

Exemplary, receiving terminal can according to the transmission times of the original position of the X-SIG that occurs for the first time that determines and the X-SIG that obtains, be determined space and end position that X-SIG takies, thereby determine the original position of business datum piece.

The signal sending, receiving method that the embodiment of the present invention provides, transmitting terminal sends the radio frames that comprises the X-SIG that copies repeatedly and copy business datum piece repeatedly, after receiving terminal receives this radio frames, can the X-SIG that copy repeatedly be detected, thereby guarantee effectively to obtain the information of business datum piece, according to service data information, the transmission times of X-SIG and the transmission times of business datum piece of carrying in the X-SIG that obtains, the business datum piece is carried out effective demodulation coding again.Like this, by processing that the X-SIG of multiple copies and the business datum piece that copies are decoded, can improve the accuracy of obtaining data message, thereby after having solved the covering radius increase, due to the too little low problem of data receiver performance that causes of signal power of receiving terminal reception.

Embodiment four

The signal sending, receiving method that the embodiment of the present invention provides, so that in radio frames first to control the number of copy times of sub-block identical with the number of copy times of business datum piece, and first control and carry one in sub-block and indicate simultaneously the first example that is designated of controlling sub-block transmission times and business datum piece transmission times to describe.As shown in Figure 5, the method step comprises:

S401, transmitting terminal generate the radio frames that comprises controll block and business datum piece, in this radio frames, controll block comprises and is used to indicate first of business datum block message and controls sub-block, be used for second of support time and Frequency Synchronization and control sub-block and be used for supporting the 3rd of channel estimating to control sub-block, and the first control sub-block copies transmission once at least in prescribed limit, and the business datum piece copies transmission once at least; The position that the first control sub-block occurs in radio frames is for the first time fixed; And control according to default regulation first and carry a sign of indicating simultaneously the first control sub-block transmission times and business datum piece transmission times in sub-block.

Concrete, controll block can comprise that being mainly used in second of support time and Frequency Synchronization controls sub-block, for example X-STF in 802.11 systems (L-STF, HT-STF etc.); Be mainly used in supporting the 3rd of channel estimating to control sub-block, for example X-LTF in 802.11 systems (L-LTF, HT-LTF etc.); And be mainly used in the indicating services data block information, as the data volume size of indicating services data division, modulation coding mode, first of transmission processing method that adopts etc. information is controlled sub-block, the X-SIG in 802.11 systems (L-SIG, HT-SIG etc.) for example.And in the first control sub-block, information is with CRC check.

Here be noted that; use in the present embodiment following steps; in controll block first is controlled sub-block X-SIG, the second control sub-block X-STF and the 3rd title and the function of controlling sub-block X-LTF is a kind of exemplifying; can appropriate change; and also can be not limited to these three kinds in controll block and control sub-block; only there to be these three kinds to control sub-block as example, protection range is not limited to this herein.

S402, transmitting terminal send above-mentioned radio frames to receiving terminal.

Exemplary, transmitting terminal can adopt OFDM (Orthogonal Frequency Division Multiplexing, OFDM) modulation to send.X-SIG in the controll block that copies in radio frames, the business datum piece that copies can be mapped to respectively on the subcarrier of OFDM and transmit.So, no matter be X-SIG or business datum piece, different copying can adopt different Sequential Mapping data symbols to the OFDM symbol.

The radio frames that comprises controll block and business datum piece that S403, receiving terminal receiving end/sending end send.

S404, receiving terminal use second in controll block to control sub-block X-STF and carry out synchronously, because the position that X-SIG occurs is for the first time fixed, find the X-SIG that occurs for the first time, from the position that X-SIG occurs for the first time, get continuously the data of the shared resource size of N part X-SIG and carry out joint iterative demodulation and decoding and CRC check, if verification succeeds obtains the information of business datum piece; If verification failure is got continuously the data of the shared resource size of M part X-SIG and carried out joint iterative demodulation and decoding and CRC check, until verification succeeds, obtain the information of business datum piece.

Here, N, M are the integer in the afore mentioned rules scope, and value in a certain order.

The indicated X-SIG transmission times of the sign that S405, receiving terminal will receive is defined as the transmission times of X-SIG; The transmission times of the business datum piece that the sign that receives is indicated is defined as the transmission times of business datum piece.

S406, receiving terminal begin according to the transmission times of the X-SIG that obtains, the position that X-SIG occurs for the first time, determine space and end position that X-SIG takies, find the original position of business datum piece with this; According to the transmission times of the business datum piece that obtains, the information of business datum piece, the business datum piece is carried out demodulation coding.

The signal sending, receiving method that the embodiment of the present invention provides, transmitting terminal sends the radio frames that comprises the X-SIG that copies repeatedly and copy business datum piece repeatedly, after receiving terminal receives this radio frames, can the X-SIG that copy repeatedly be detected, thereby guarantee effectively to obtain the information of business datum piece, according to service data information, the transmission times of X-SIG and the transmission times of business datum piece of carrying in the X-SIG that obtains, the business datum piece is carried out effective demodulation coding again.Like this, by processing that the X-SIG of multiple copies and the business datum piece that copies are decoded, can improve the accuracy of obtaining data message, thereby after having solved the covering radius increase, due to the too little low problem of data receiver performance that causes of signal power of receiving terminal reception.

Embodiment five

The signal sending, receiving method that the embodiment of the present invention provides describes with the example that is designated that only carries indicating services data block transmission times in the first control sub-block in radio frames.As shown in Figure 6, the method step comprises:

S501, transmitting terminal generate the radio frames that comprises controll block and business datum piece, in this radio frames, controll block comprises and is used to indicate first of business datum block message and controls sub-block, be used for second of support time and Frequency Synchronization and control sub-block and be used for supporting the 3rd of channel estimating to control sub-block, and the first control sub-block copies transmission once at least in prescribed limit, and the business datum piece copies transmission once at least; The position that the first control sub-block occurs in radio frames is for the first time fixed; And control according to default regulation first sign that only carries indicating services data block transmission times in sub-block.

Concrete, controll block can comprise that being mainly used in second of support time and Frequency Synchronization controls sub-block, for example X-STF in 802.11 systems (L-STF, HT-STF etc.); Be mainly used in supporting the 3rd of channel estimating to control sub-block, for example X-LTF in 802.11 systems (L-LTF, HT-LTF etc.); And be mainly used in the indicating services data block information, as the data volume size of indicating services data division, modulation coding mode, first of transmission processing method that adopts etc. information is controlled sub-block, the X-SIG in 802.11 systems (L-SIG, HT-SIG etc.) for example.And in the first control sub-block, information is with CRC check.

In addition, in radio frames, according to preset rules, as agreement etc., the number of times that X-SIG is copied is limited in predefined scope; The number of times that the business datum piece is copied also is limited in predefined scope; Both copy in preset range separately, and number of copy times can be identical, also can be different, and predefined scope and number of copy times all can be according to actual operating position regulations.

S502, transmitting terminal send above-mentioned radio frames to receiving terminal.

Exemplary, transmitting terminal can adopt OFDM (Orthogonal Frequency Division Multiplexing, OFDM) modulation to send.X-SIG in the controll block that copies in radio frames, the business datum piece that copies can be mapped to respectively on the subcarrier of OFDM and transmit.So, no matter be X-SIG or business datum piece, different copying can adopt different Sequential Mapping data symbols to the OFDM symbol.

The radio frames that comprises controll block and business datum piece that S503, receiving terminal receiving end/sending end send.

S504, receiving terminal use second in controll block to control sub-block X-STF and carry out synchronously, because the position that X-SIG occurs is for the first time fixed, find the X-SIG that occurs for the first time, from the position that X-SIG occurs for the first time, get continuously the data of the shared resource size of N part X-SIG, and suppose that this N piece of data is all copying of X-SIG, carries out joint iterative demodulation and decoding and CRC check to it, if verification succeeds obtains information and the verification succeeds times N of business datum piece; If verification failure is got continuously the data of the shared resource size of M part X-SIG and carried out joint iterative demodulation and decoding and CRC check, until verification succeeds, obtain information and the verification succeeds number of times M of business datum piece.

Here, N, M are the integer in the afore mentioned rules scope, and value in a certain order.

After S505, verification succeeds, continue X-SIG is carried out demodulation coding and CRC check by part is cumulative, until the total check failure is defined as detection check number of success accumulative total the transmission times of X-SIG to the previous verification number of times of total check failure.

The transmission times of the business data block that the sign that S506, receiving terminal will receive is indicated is defined as the transmission times of business datum piece.

S507, receiving terminal begin according to the transmission times of the X-SIG that obtains, the position that X-SIG occurs for the first time, determine space and end position that X-SIG takies, find the original position of business datum piece with this; According to the transmission times of the business datum piece that obtains, the information of business datum piece, the business datum piece is carried out demodulation coding.

The signal sending, receiving method that the embodiment of the present invention provides, transmitting terminal sends the radio frames that comprises the X-SIG that copies repeatedly and copy business datum piece repeatedly, after receiving terminal receives this radio frames, can the X-SIG that copy repeatedly be detected, thereby guarantee effectively to obtain the information of business datum piece, according to service data information, the transmission times of X-SIG and the transmission times of business datum piece of carrying in the X-SIG that obtains, the business datum piece is carried out effective demodulation coding again.Like this, by processing that the X-SIG of multiple copies and the business datum piece that copies are decoded, can improve the accuracy of obtaining data message, thereby after having solved the covering radius increase, due to the too little low problem of data receiver performance that causes of signal power of receiving terminal reception.

Embodiment six

The signal sending, receiving method that the embodiment of the present invention provides indicates respectively the first sign example of controlling sub-block transmission times and business datum piece transmission times to describe to carry in the first control sub-block in radio frames.As shown in Figure 7, the method step comprises:

S601, transmitting terminal generate the radio frames that comprises controll block and business datum piece, in this radio frames, controll block comprises and is used to indicate first of business datum block message and controls sub-block, be used for second of support time and Frequency Synchronization and control sub-block and be used for supporting the 3rd of channel estimating to control sub-block, and the first control sub-block copies transmission once at least in prescribed limit, and the business datum piece copies transmission once at least; The position that the first control sub-block occurs in radio frames is for the first time fixed; And control according to default regulation first and carry the sign of indicating respectively the first control sub-block transmission times and business datum piece transmission times in sub-block.

Concrete, controll block can comprise that being mainly used in second of support time and Frequency Synchronization controls sub-block, for example X-STF in 802.11 systems (L-STF, HT-STF etc.); Be mainly used in supporting the 3rd of channel estimating to control sub-block, for example X-LTF in 802.11 systems (L-LTF, HT-LTF etc.); And be mainly used in the indicating services data block information, as the data volume size of indicating services data division, modulation coding mode, first of transmission processing method that adopts etc. information is controlled sub-block, the X-SIG in 802.11 systems (L-SIG, HT-SIG etc.) for example.And in the first control sub-block, information is with CRC check.

Here be noted that; use in the present embodiment following steps; in controll block first is controlled sub-block X-SIG, the second control sub-block X-STF and the 3rd title and the function of controlling sub-block X-LTF is a kind of exemplifying; can appropriate change; and also can be not limited to these three kinds in controll block and control sub-block; only there to be these three kinds to control sub-block as example, protection range is not limited to this herein.

S602, transmitting terminal send above-mentioned radio frames to receiving terminal.

Exemplary, transmitting terminal can adopt OFDM (Orthogonal Frequency Division Multiplexing, OFDM) modulation to send.X-SIG in the controll block that copies in radio frames, the business datum piece that copies can be mapped to respectively on the subcarrier of OFDM and transmit.So, no matter be X-SIG or business datum piece, different copying can adopt different Sequential Mapping data symbols to the OFDM symbol.

The radio frames that comprises controll block and business datum piece that S603, receiving terminal receiving end/sending end send.

S604, receiving terminal use second in controll block to control sub-block X-STF and carry out synchronously, because the position that X-SIG occurs is for the first time fixed, find the X-SIG that occurs for the first time, from the position that X-SIG occurs for the first time, get continuously the data of the shared resource size of N part X-SIG and carry out joint iterative demodulation and decoding and CRC check, if verification succeeds obtains the information of business datum piece; If verification failure is got continuously the data of the shared resource size of M part X-SIG and carried out joint iterative demodulation and decoding and CRC check, until verification succeeds, obtain the information of business datum piece.

Here, N, M are the integer in the afore mentioned rules scope, and value in a certain order.

The transmission times of the X-SIG that the sign that S605, receiving terminal will receive is indicated is defined as the transmission times of X-SIG; The transmission times of the business datum piece that the sign that receives is indicated is defined as the transmission times of business datum piece.

S606, receiving terminal begin according to the transmission times of the X-SIG that obtains, the position that X-SIG occurs for the first time, determine space and end position that X-SIG takies, find the original position of business datum piece with this; According to the transmission times of the business datum piece that obtains, the information of business datum piece, the business datum piece is carried out demodulation coding.

The signal sending, receiving method that the embodiment of the present invention provides, transmitting terminal sends the radio frames that comprises the X-SIG that copies repeatedly and copy business datum piece repeatedly, after receiving terminal receives this radio frames, can the X-SIG that copy repeatedly be detected, thereby guarantee effectively to obtain the information of business datum piece, according to service data information, the transmission times of X-SIG and the transmission times of business datum piece of carrying in the X-SIG that obtains, the business datum piece is carried out effective demodulation coding again.Like this, by processing that the X-SIG of multiple copies and the business datum piece that copies are decoded, can improve the accuracy of obtaining data message, thereby after having solved the covering radius increase, due to the too little low problem of data receiver performance that causes of signal power of receiving terminal reception.

Embodiment seven

The signal sending end equipment 70 that the embodiment of the present invention provides as shown in Figure 8, comprising:

Signal generation unit 701, be used for generating the radio frames that comprises controll block and business datum piece, in this radio frames, controll block comprises the first control sub-block that is used to indicate the business datum block message, and the first control sub-block copies transmission once at least in prescribed limit, and the business datum piece copies transmission once at least; The position that the first control sub-block occurs in radio frames is for the first time fixed.

Further, in the described controll block that this signal generation unit 701 generates, also comprise for second of support time and Frequency Synchronization and control sub-block, and be used for supporting the 3rd of channel estimating to control sub-block.

It is worthy of note, what signal generation unit 701 generated first controls the number of sub-block and the number of business datum piece, according to preset rules, and as agreement etc., can be identical or not identical.

In addition, can also carry the sign that indication the first control sub-block generation number and/or business datum piece generate number in the first control sub-block that signal generation unit 701 generates.

Transmitting element 702 is used for sending this radio frames to receiving device.

the signal sending end equipment that the embodiment of the present invention provides, sending ending equipment sends and to comprise one or copy first controlling sub-block and or copying the radio frames of business datum piece repeatedly repeatedly, so that after receiving device receives this radio frames, can detect demodulation coding to the first controll block that copies repeatedly, thereby guarantee effectively to obtain the information of business datum piece, afterwards again according to the service data information of carrying in the first control sub-block that obtains, first controls the transmission times of sub-block and the transmission times of business datum piece, the business datum piece is carried out effective demodulation coding.Like this, by the processing of decoding of the business datum piece of first of multiple copies being controlled sub-block and copy, can improve the accuracy of obtaining data message, thereby after having solved the covering radius increase, due to the too little low problem of data receiver performance that causes of signal power of receiving terminal reception.

Embodiment eight

The signal receiving end equipment 80 that the embodiment of the present invention provides as shown in Figure 9, comprising:

Receiving element 801 is used for the radio frames that comprises controll block and business datum piece that receiving end/sending end sends; In radio frames, controll block comprises the first control sub-block that is used to indicate the business datum block message; And the first control sub-block sends and once or at least copies transmission once in prescribed limit, and the business datum piece sends and once or at least copies transmission once; The position that the first control sub-block occurs in radio frames is for the first time fixed.

The transmission times of the first control sub-block that comprises in the radio frames that further, receiving element 801 receives and the transmission times of business datum piece can be identical or different in prescribed limit.

In addition, can also carry the sign that sub-block transmission times and/or business datum piece transmission times are controlled in indication first in the first control sub-block that receiving element 801 receives.

Controll block processing unit 802 is used for controlling sub-block to first and detects, and obtains the information of business datum piece; Obtain the transmission times of the first control sub-block.

Data service piece processing unit 803 is for the transmission times that obtains the business datum piece; According to the transmission times of the first control sub-block that obtains, the transmission times of business datum piece, the information of business datum piece, the business datum piece is carried out demodulation coding.

The signal receiving end equipment that the embodiment of the present invention provides, receiving device receives that sending ending equipment sends comprises one or copy first controlling sub-block and or copying the radio frames of business datum piece repeatedly repeatedly, the first controll block that copies is repeatedly detected demodulation coding, thereby guarantee effectively to obtain the information of business datum piece, control the transmission times of sub-block and the transmission times of business datum piece according to the service data information, first of carrying in the first control sub-block that obtains again, the business datum piece is carried out effective demodulation coding.Like this, by the processing of decoding of the business datum piece of first of multiple copies being controlled sub-block and copy, can improve the accuracy of obtaining data message, thereby after having solved the covering radius increase, due to the too little low problem of data receiver performance that causes of signal power of receiving terminal reception.

Further, in the radio frames that receiving element 801 receives, the transmission times of the first control sub-block is identical with the transmission times of business datum piece,

Controll block processing unit 802, be used for after transmitting terminal is synchronizeed, find the position of the first control sub-block that occurs for the first time, get continuously the data of described the first shared resource size of control sub-block of N part and carry out joint iterative demodulation and decoding and verification, if verification succeeds obtains information and the verification succeeds times N of business datum piece; If verification failure is got continuously the data that M part first controls the shared resource size of sub-block and carried out joint iterative demodulation and decoding and verification, until verification succeeds, obtain information and the verification succeeds number of times of business datum piece; Wherein, N, M are the integer in prescribed limit; After verification succeeds, continue to control sub-block to first and carry out demodulation coding and verification by part is cumulative, until the total check failure is defined as verification number of success accumulative total the transmission times of the first controll block to the previous verification number of times of total check failure.

Data service piece processing unit 803 is for the first transmission times of controlling sub-block being defined as the transmission times of business datum piece; Control according to the first transmission times, first of controlling sub-block the position that sub-block occurs for the first time, find the original position of business datum piece; According to the transmission times of business datum piece, the original position of business datum piece, the information of business datum piece, the business datum piece is carried out demodulation coding.

Perhaps, under another kind of scene, in the radio frames that receiving element 801 receives, the transmission times of the first control sub-block is identical with the transmission times of business datum piece, carry a sign of indicating simultaneously the first control sub-block transmission times and business datum piece transmission times in the first control sub-block

Controll block processing unit 802, be used for after transmitting terminal synchronize, find the first position of controlling sub-block that occurs for the first time, get continuously the data of described the first shared resource size of control sub-block of N part and carry out joint iterative demodulation and decoding and verification, if verification succeeds obtains the information of business datum piece; If verification failure is got continuously the data that M part first controls the shared resource size of sub-block and carried out joint iterative demodulation and decoding and verification, until verification succeeds, obtain the information of business datum piece; Wherein, N, M are the integer in prescribed limit; The first transmission times of controlling sub-block of the sign that receives indication is defined as the first transmission times of controlling sub-block.

Data service piece processing unit 803, the transmission times of the business datum piece that the sign that is used for receiving is indicated is defined as the transmission times of business datum piece; According to the transmission times of the first control sub-block, find the original position of business datum piece; According to the transmission times of business datum piece, the information of business datum piece, the business datum piece is carried out demodulation coding.

Perhaps, under another kind of scene, in the radio frames that receives that receiving element 801 receives, first controls the sign that only carries indicating services data block transmission times in sub-block,

Controll block processing unit 802, be used for after transmitting terminal is synchronizeed, find the position of the first control sub-block that occurs for the first time, get continuously the data of N part the first shared resource size of control sub-block and carry out joint iterative demodulation and decoding and verification, if verification succeeds obtains information and the verification succeeds times N of business datum piece; If verification failure is got continuously the data that M part first controls the shared resource size of sub-block and carried out joint iterative demodulation and decoding and verification, until verification succeeds, obtain information and the verification succeeds number of times of business datum piece; Wherein, N, M are the integer in described prescribed limit; After verification succeeds, continue to control sub-block to first and carry out demodulation coding and verification by part is cumulative, until the total check failure is defined as verification number of success accumulative total the transmission times of the first controll block to the previous verification number of times of total check failure.

Data service piece processing unit 803 is used for receiving the transmission times that the transmission times that identifies the business datum piece of indicating is defined as the business datum piece; Control according to the first transmission times, first of controlling sub-block the position that sub-block occurs for the first time, find the original position of business datum piece; According to the transmission times of business datum piece, the original position of business datum piece, the information of business datum piece, the business datum piece is carried out demodulation coding.

Perhaps, under another kind of scene, in the radio frames that receiving element 801 receives, carry the sign of indicating respectively the first control sub-block transmission times and business datum piece transmission times in the first control sub-block,

Controll block processing unit 802, be used for after transmitting terminal synchronize, find the first position of controlling sub-block that occurs for the first time, get continuously the data of N part the first shared resource size of control sub-block and carry out joint iterative demodulation and decoding and verification, if verification succeeds obtains the information of business datum piece; If verification failure is got continuously the data that M part first controls the shared resource size of sub-block and is carried out joint iterative demodulation and decoding and verification, until verification succeeds, if verification succeeds obtains the information of business datum piece; Wherein, described N, M are the integer in prescribed limit; The first transmission times of controlling sub-block of the sign that receives indication is defined as the first transmission times of controlling sub-block.

Data service piece processing unit 803, the transmission times of the business datum piece that the sign that is used for receiving is indicated is defined as the transmission times of described business datum piece; Control according to the first transmission times, first of controlling sub-block the position that sub-block occurs for the first time, find the original position of business datum piece; According to the transmission times of business datum piece, the original position of business datum piece, the information of business datum piece, the business datum piece is carried out demodulation coding.

Embodiment nine

The communication system that the embodiment of the present invention provides as shown in figure 10, comprising:

Transmitting apparatus end 70 is used for sending to receiving device 80 radio frames that comprises controll block and business datum piece; In radio frames, controll block comprises the first control sub-block that is used to indicate the business datum block message; And the first control sub-block sends and once or at least copies transmission once in prescribed limit, and the business datum piece sends and once or at least copies transmission once; The position that the first control sub-block occurs in radio frames is for the first time fixed.

Receiving device 80 is used for receiving the radio frames that comprises controll block and business datum piece that transmitting apparatus end 70 sends; Control sub-block to first and detect, obtain first and control the transmission times of sub-block and the information of business datum piece; According to the transmission times of the first control sub-block that obtains, the transmission times of business datum piece, the information of business datum piece, the business datum piece is carried out demodulation coding.

The sending ending equipment that provides in the concrete structure of above-mentioned sending ending equipment 70 and receiving device 80 and above-described embodiment is identical with the structure of receiving device, does not repeat them here.

In addition, need to prove, the sign that above-mentioned each embodiment indicating first is controlled sub-block transmission times and/or business datum piece transmission times can be the field in the first control sub-block.

the signal communications system that the embodiment of the present invention provides, transmitting terminal sends and to comprise one or copy first controlling sub-block and or copying the radio frames of business datum piece repeatedly repeatedly, after receiving terminal receives this radio frames, can carry out a joint iterative demodulation and decoding that adds to the first controll block that copies repeatedly, thereby guarantee effectively to obtain the information of business datum piece, again according to the service data information of carrying in the first control sub-block that obtains, first controls the transmission times of sub-block and the transmission times of business datum piece, the business datum piece is carried out effective demodulation coding.Like this, by the processing of decoding of the business datum piece of first of multiple copies being controlled sub-block and copy, can improve the accuracy of obtaining data message, thereby after having solved the covering radius increase, due to the too little low problem of data receiver performance that causes of signal power of receiving terminal reception.

One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be completed by the hardware that program command is correlated with, aforesaid program can be stored in a computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.

Claims (20)

1. a signaling method, is characterized in that, comprising:

Send the radio frames that comprises controll block and business datum piece to receiving terminal;

In described radio frames, described controll block comprises the first control sub-block that is used to indicate described business datum block message; And described the first control sub-block sends and once or at least copies transmission once in prescribed limit, and described business datum piece sends and once or at least copies transmission once; The position that described the first control sub-block occurs in described radio frames is for the first time fixed.

2. method according to claim 1, is characterized in that, described first controls the sign that also carries described the first control sub-block transmission times of indication and/or described business datum piece transmission times in sub-block.

3. a signal acceptance method, is characterized in that, comprising:

The radio frames that comprises controll block and business datum piece that receiving end/sending end sends; In described radio frames, described controll block comprises the first control sub-block that is used to indicate described business datum block message; And described first controls the sub-block transmission once or at least copies transmission once, and described business datum piece sends and once or at least copies transmission once; The position that described the first control sub-block occurs in described radio frames is for the first time fixed;

Control sub-block to described first and detect, obtain the information of described business datum piece;

Obtain described first and control the transmission times of sub-block and the transmission times of described business datum piece;

According to the transmission times of described the first control sub-block that obtains, the transmission times of described business datum piece, the information of described business datum piece, described business datum piece is carried out demodulation coding.

4. method according to claim 3, is characterized in that, also carries the sign that sub-block transmission times and/or described business datum piece transmission times are controlled in indication described first in described the first control sub-block that receives.

5. method according to claim 3, is characterized in that, in the described radio frames that receives, the transmission times of described the first control sub-block is identical with the transmission times of described business datum piece,

Controlling sub-block to described first detects, the information that obtains described business datum piece comprises: with after transmitting terminal is synchronizeed, find the position of the first control sub-block that occurs for the first time, get continuously the data of described the first shared resource size of control sub-block of N part and carry out joint iterative demodulation and decoding and verification, if verification succeeds obtains information and the verification succeeds times N of described business datum piece; If verification failure is got continuously the data that M part first controls the shared resource size of sub-block and carried out joint iterative demodulation and decoding and verification, until verification succeeds, obtain information and the verification succeeds number of times of described business datum piece; Wherein, described N, M are the integer in described prescribed limit;

Obtaining the described first transmission times of controlling sub-block comprises: after verification succeeds, continuation is controlled sub-block to described first and is carried out demodulation coding and verification by part adding up, until the total check failure is defined as described verification succeeds number of times accumulative total the transmission times of described the first controll block to the previous verification number of times of described total check failure;

The transmission times that obtains described business datum piece comprises: the transmission times that the described first transmission times of controlling sub-block is defined as described business datum piece.

6. method according to claim 4, it is characterized in that, in the described radio frames that receives, the transmission times of described the first control sub-block is identical with the transmission times of described business datum piece, carry a sign of indicating simultaneously described the first control sub-block transmission times and described business datum piece transmission times in described the first control sub-block

Describedly obtain described first and control the transmission times of sub-block and the transmission times of described business datum piece comprises: the described first transmission times of controlling sub-block of the described sign indication that will receive is defined as the described first transmission times of controlling sub-block; The transmission times of the described business datum piece of the described sign indication that receives is defined as the transmission times of described business datum piece.

7. method according to claim 4, is characterized in that, in the described radio frames that receives, described first controls the sign that only carries the described business datum piece transmission times of indication in sub-block,

The transmission times that obtains described business datum piece comprises: the transmission times that will receive the described business datum piece of described sign indication is defined as the transmission times of described business datum piece.

8. method according to claim 4, is characterized in that, in the described radio frames that receives, carries the sign of indicating respectively described the first control sub-block transmission times and described business datum piece transmission times in described the first control sub-block,

Describedly obtain described first and control the transmission times of sub-block and the transmission times of described business datum piece comprises: the described first transmission times of controlling sub-block of the described sign indication that will receive is defined as the described first transmission times of controlling sub-block; The transmission times of the described business datum piece of the described sign indication that receives is defined as the transmission times of described business datum piece.

9. method according to claim 7, is characterized in that,

Controlling sub-block to described first detects, the information that obtains described business datum piece comprises: with after transmitting terminal is synchronizeed, find the position of the first control sub-block that occurs for the first time, get continuously the data of described the first shared resource size of control sub-block of N part and carry out joint iterative demodulation and decoding and verification, if verification succeeds obtains the information of described business datum piece; If verification failure is got continuously the data that M part first controls the shared resource size of sub-block and carried out joint iterative demodulation and decoding and verification, until verification succeeds, obtain the information of described business datum piece; Wherein, described N, M are the integer in described prescribed limit;

Obtaining the described first transmission times of controlling sub-block comprises: after described verification succeeds, continuation is controlled sub-block to described first and is carried out demodulation coding and verification by part adding up, until the total check failure, the verification number of times accumulative total during with described verification succeeds is defined as the transmission times of described the first controll block to the previous verification number of times of described total check failure.

10. according to claim 3,4,6 or 8 arbitrary described methods, it is characterized in that,

Describedly control sub-block to described first and detect, the information that obtains described business datum piece comprises: with after transmitting terminal is synchronizeed, find the position of the first control sub-block that occurs for the first time, get continuously the data of described the first shared resource size of control sub-block of N part and carry out joint iterative demodulation and decoding and verification, if verification succeeds obtains the information of described business datum piece; If verification failure is got continuously the data that M part first controls the shared resource size of sub-block and carried out joint iterative demodulation and decoding and verification, until verification succeeds, obtain the information of described business datum piece; Wherein, described N, M are the integer in described prescribed limit.

11. the described method of claim according to claim 3, it is characterized in that, the transmission times of described the first control sub-block that described basis obtains, the transmission times of described business datum piece, the information of described business datum piece, described business datum piece is carried out demodulation coding comprise:

Control according to the described first transmission times, described first of controlling sub-block that obtains the position that sub-block occurs for the first time, find the original position of described business datum piece;

According to the original position of the transmission times of the business datum piece that obtains, described business datum piece, the information of described business datum piece, described business datum piece is carried out demodulation coding.

12. a signal sending end equipment is characterized in that, comprising:

The signal generation unit is used for generating the radio frames that comprises controll block and business datum piece; In described radio frames, described controll block comprises the first control sub-block that is used to indicate described business datum block message; And described the first control sub-block generates and once or at least copies generation once in prescribed limit, and described business datum piece generates and once or at least copies generation once; The position that described the first control sub-block occurs in described radio frames is for the first time fixed;

Transmitting element is used for sending described radio frames to receiving terminal.

13. sending ending equipment according to claim 12 is characterized in that, also carries the sign that described the first control sub-block generation number of indication and/or described business datum piece generate number in described the first control sub-block that described signal generation unit generates.

14. a signal receiving end equipment is characterized in that, comprising:

Receiving element is used for the radio frames that comprises controll block and business datum piece that receiving end/sending end sends; In described radio frames, described controll block comprises the first control sub-block that is used to indicate described business datum block message; And described the first control sub-block sends and once or at least copies transmission once in prescribed limit, and described business datum piece sends and once or at least copies transmission once; The position that described the first control sub-block occurs in described radio frames is for the first time fixed;

The controll block processing unit is used for controlling sub-block to described first and detects, and obtains the information of described business datum piece; Obtain the transmission times of described the first control sub-block;

Data service piece processing unit is for the transmission times that obtains described business datum piece; According to the transmission times of described the first control sub-block that obtains, the transmission times of described business datum piece, the information of described business datum piece, described business datum piece is carried out demodulation coding.

15. signal receiving end equipment according to claim 14 is characterized in that, also carries the sign that sub-block transmission times and/or described business datum piece transmission times are controlled in indication described first in described the first control sub-block that described receiving element receives.

16. signal receiving end equipment according to claim 14 is characterized in that,

In the described radio frames that described receiving element receives, the transmission times of described the first control sub-block is identical with the transmission times of described business datum piece,

Described controll block processing unit, be used for after transmitting terminal is synchronizeed, find the position of the first control sub-block that occurs for the first time, get continuously the data of described the first shared resource size of control sub-block of N part and carry out joint iterative demodulation and decoding and verification, if verification succeeds obtains information and the verification succeeds times N of described business datum piece; If verification failure is got continuously the data that M part first controls the shared resource size of sub-block and carried out joint iterative demodulation and decoding and verification, until verification succeeds, obtain information and the verification succeeds number of times of described business datum piece; Wherein, described N, M are the integer in described prescribed limit; After verification succeeds, continuation is controlled sub-block to described first and is carried out demodulation coding and verification by part adding up, until the total check failure is defined as described verification succeeds number of times accumulative total the transmission times of described the first control sub-block to the previous verification number of times of described total check failure;

Described data service piece processing unit is for the described first transmission times of controlling sub-block being defined as the transmission times of described business datum piece; Control according to the described first transmission times, described first of controlling sub-block the position that sub-block occurs for the first time, find the original position of described business datum piece; According to the original position of the transmission times of described business datum piece, described business datum piece, the information of described business datum piece, described business datum piece is carried out demodulation coding.

17. signal receiving end equipment according to claim 15 is characterized in that,

In the described radio frames that described receiving element receives, the transmission times of described the first control sub-block is identical with the transmission times of described business datum piece, carry a sign of indicating simultaneously described the first control sub-block transmission times and described business datum piece transmission times in described the first control sub-block

The described first transmission times of controlling sub-block that described controll block processing unit, the described sign that also is used for receiving are indicated is defined as the transmission times of described the first control sub-block;

Described data service piece processing unit, the transmission times of the described business datum piece that the described sign that also is used for receiving is indicated is defined as the transmission times of described business datum piece.

18. signal receiving end equipment according to claim 15 is characterized in that,

In the described radio frames that receives that described receiving element receives, described first controls the sign that only carries the described business datum piece transmission times of indication in sub-block,

Described controll block processing unit after also being used for controlling the success of sub-block detection check to described first, continuing to control sub-block to described first and detects, and obtains the transmission times of described the first controll block;

Described data service piece processing unit, the transmission times that also is used for receiving the described business datum piece of described sign indication is defined as the transmission times of described business datum piece.

19. signal receiving end equipment according to claim 15 is characterized in that,

In the described radio frames that described receiving element receives, carry the sign of indicating respectively described the first control sub-block transmission times and described business datum piece transmission times in described the first control sub-block,

The described first transmission times of controlling sub-block that described controll block processing unit, the described sign that also is used for receiving are indicated is defined as the transmission times of described the first control sub-block;

Described data service piece processing unit, the transmission times of the described business datum piece that the described sign that also is used for receiving is indicated is defined as the transmission times of described business datum piece.

20. a communication system is characterized in that, comprising:

Sending ending equipment is used for sending to receiving terminal the radio frames that comprises controll block and business datum piece; In described radio frames, described controll block comprises the first control sub-block that is used to indicate described business datum block message; And described the first control sub-block sends and once or at least copies transmission once in prescribed limit, and described business datum piece sends and once or at least copies transmission once; The position that described the first control sub-block occurs in described radio frames is for the first time fixed;

Receiving device is used for receiving the described radio frames that comprises controll block and business datum piece that described sending ending equipment sends; Control sub-block to described first and detect, obtain the information of described business datum piece; Obtain described first and control the transmission times of sub-block and the transmission times of described business datum piece; According to the transmission times of described the first control sub-block that obtains, the transmission times of described business datum piece, the information of described business datum piece, described business datum piece is carried out demodulation coding.

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