CN101217527A - A transmitting method and detecting method of additional information, base station and user device - Google Patents
A transmitting method and detecting method of additional information, base station and user device Download PDFInfo
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Abstract
The invention provides an extra information transmitting method which is used in a wireless communication system which adopts BPSK or QPSK modulation modes, which comprises the following steps: the bit number L of the extra information which needs to be transmitted is judged to be not more than the modulation symbol number M of BPSK or QPSK modulation modes; the channel codes which need to be transmitted are divided into L groups to correspond to different extra information and the L groups of channel codes are modulated by adopting a different combination of a first method and a second method in the two modulation methods in the BPSK or QPSK modulation modes; \ the modulated channel codes are transmitted. The invention also provides an extra information detecting method, a base station and user devices. The invention can transmit a plurality of extra information without increasing modulation orders.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of extraneous information sending method and detection method that is used for wireless communication system, and base station and subscriber equipment (UserEquipment, UE).
Background technology
In wireless communication system, information bit is the following processing of process usually before transmission: a) information bit is carried out chnnel coding, obtain coded-bit; B) coded-bit is modulated, obtained modulation symbol.
BPSK (Binary Phase Shift Keying, bi-phase shift keying), QPSK (Quaternary Phase Shift Keying, quadriphase PSK) are two kinds of modulation systems commonly used in the wireless communication system.
For BPSK, the corresponding modulation symbol of each channel-encoded bit specifically has two kinds of implementation methods:
Method A:
Channel-encoded bit " 0 " is modulated to 1; Channel-encoded bit " 1 " is modulated to-1;
Method B:
Channel-encoded bit " 0 " is modulated to j; Channel-encoded bit " 1 " is modulated to-j, and j is an imaginary unit;
For QPSK, the corresponding modulation symbol of per two channel-encoded bit specifically also has two kinds of implementation methods:
Method A:
Channel-encoded bit " 00 " is modulated to a+ja;
Channel-encoded bit " 01 " is modulated to a-ja;
Channel-encoded bit " 10 " is modulated to-a+ja;
Channel-encoded bit " 11 " is modulated to-a-ja;
Wherein, a=1/
Method B:
Channel-encoded bit " 00 " is modulated to 1;
Channel-encoded bit " 01 " is modulated to-j;
Channel-encoded bit " 10 " is modulated to j;
Channel-encoded bit " 11 " is modulated to-1;
Such as, establishing information bit is 10, to its chnnel coding of carrying out 1/2, obtains 20 coded-bits, then these 20 coded-bits is carried out the BPSK modulation, just obtains 20 modulation symbols (BPSK modulation symbol).
Under certain (number of modulation symbols the is certain) situation of resource, want to send more bits, following three kinds of methods are arranged usually:
1) improves encoding rate.Such as, suppose number of modulation symbols=20, require to adopt the BPSK modulation, if channel encoding rate is 4/5, just can transmit 16 bits this moment;
2) improve order of modulation.Such as, suppose number of modulation symbols=20, require to adopt 1/2 chnnel coding, if adopt the QAM-16 modulation, just can transmit 40 bits this moment.
3) mixing of the two kinds of methods in front.
Three kinds of methods recited above have all obtained extensive use in wireless communication system.But in realizing process of the present invention, the inventor finds in the prior art directly to use said method and but can not achieve the goal at least in some cases.Such as following situation:
For the reverse link of wireless communication system, when mobile phone raising order of modulation sends information bit, the peak-to-average force ratio of mobile phone sending signal is improved, thereby seriously reduce the power amplification efficiency of mobile phone.When mobile phone is positioned at cell edge, because the restriction of mobile phone transmitting power and power amplification efficiency, so mobile phone can not utilize order of modulation to improve the purpose that realizes multiple carry information bit.
Summary of the invention
The present invention aims to provide a kind of extraneous information sending method and detection method that is used for wireless communication system, and subscriber equipment and base station, can solve to adopt high-order modulating to send the problem that extraneous information causes peak-to-average force ratio to improve.
In an embodiment of the present invention, a kind of extraneous information sending method that is used for wireless communication system is provided, wireless communication system adopts BPSK or QPSK modulation system, may further comprise the steps: the modulation symbol that judgement needs the additional information bits of transmission to count no more than BPSK of L or QPSK modulation system is counted M; The chnnel coding that needs are sent is divided into the L group, corresponding to different extraneous informations, first method in two kinds of modulator approaches in L group chnnel coding employing BPSK or the QPSK modulation system is modulated with one of second method different combination; And the chnnel coding after the transmission modulation.
In an embodiment of the present invention, also provide a kind of extraneous information detection method that is used for wireless communication system, wireless communication system adopts BPSK or QPSK modulation system, may further comprise the steps: the receive channel coding; The modulator approach that the packet group of judging chnnel coding is counted L and every group is first method or second method in two kinds of modulator approaches of BPSK or QPSK modulation system; And judge the extraneous information that chnnel coding is carried according to the modulator approach that packet group is counted L and every group.
In an embodiment of the present invention, also provide a kind of subscriber equipment, it adopts BPSK or QPSK modulation system, comprising: judge module is used to judge that additional information bits that needs send counts the modulation symbol of no more than BPSK of L or QPSK modulation system and count M; Modulation module is used for the chnnel coding that needs send is divided into the L group, corresponding to different extraneous informations, first method in two kinds of modulator approaches in L group chnnel coding employing BPSK or the QPSK modulation system is modulated with one of second method different combination; And sending module, be used to send the chnnel coding after the modulation.
In an embodiment of the present invention, also provide a kind of base station, it adopts BPSK or QPSK modulation system, comprising: receiver module is used for the receive channel coding; The modulator approach that detection module, the packet group that is used for judging chnnel coding are counted L and every group is first method or second method of two kinds of modulator approaches of BPSK or QPSK modulation system; And judge module, the modulator approach that is used for counting according to packet group L and every group is judged the extraneous information that chnnel coding is carried.
The extraneous information sending method and the detection method that are used for wireless communication system of the above embodiment of the present invention, and subscriber equipment and base station, because adopt the combination of modulator approach to load extraneous information, so overcome the problem that adopts high-order modulating to cause peak-to-average force ratio to improve, and then reached the effect of the efficient that has guaranteed the transmitter power amplifier.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the flow chart according to the extraneous information sending method that is used for wireless communication system of the embodiment of the invention;
Fig. 2 shows the channel architecture schematic diagram according to a kind of transmitting channel quality indication bit of the embodiment of the invention;
Fig. 3 shows the channel architecture schematic diagram that the signaling method according to the embodiment of the invention obtains;
Fig. 4 shows the channel architecture schematic diagram that the signaling method according to the embodiment of the invention obtains;
Fig. 5 shows the flow chart according to the extraneous information detection method that is used for wireless communication system of the embodiment of the invention;
Fig. 6 shows the flow chart of detection method according to the preferred embodiment of the invention;
Fig. 7 shows the block diagram according to the subscriber equipment of the embodiment of the invention; And
Fig. 8 shows the block diagram according to the base station of the embodiment of the invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Fig. 1 shows the flow chart according to the extraneous information sending method that is used for wireless communication system of the embodiment of the invention, and wireless communication system adopts BPSK or QPSK modulation system, may further comprise the steps:
Step S10, the modulation symbol that judgement needs the additional information bits of transmission to count no more than BPSK of L or QPSK modulation system is counted M;
Step S20, the chnnel coding that needs are sent is divided into the L group, corresponding to different extraneous informations, first method in two kinds of modulator approaches in L group chnnel coding employing BPSK or the QPSK modulation system is modulated with one of second method different combination; And
Step S30 sends the chnnel coding after modulating.
The extraneous information sending method that is used for wireless communication system of the foregoing description is because adopt the combination of modulator approach to load extraneous information, so overcome the problem that adopts high-order modulating to cause peak-to-average force ratio to improve, and then reached the effect of the efficient that has guaranteed the transmitter power amplifier.
Preferably, judge M=1 and L=1; Step S20 specifically comprises: whole chnnel codings are classified as 1 group; When extraneous information is first symbol, adopt first method to modulate whole chnnel codings; And extraneous information adopts second method to modulate whole chnnel codings when being second symbol.
Preferably, judge M=2 and L≤2; Step S20 specifically comprises:
Whole chnnel codings are classified as the L group;
When extraneous information is first symbol, adopt first method to modulate first group of chnnel coding, adopt first method to modulate second group of chnnel coding;
When extraneous information is second symbol, adopt first method to modulate first group of chnnel coding, adopt second method to modulate second group of chnnel coding;
When extraneous information is the 3rd symbol, adopt second method to modulate first group of chnnel coding, adopt first method to modulate second group of chnnel coding; And
When extraneous information is the 4th symbol, adopt second method to modulate first group of chnnel coding, adopt second method to modulate second group of chnnel coding.
Suppose that total M BPSK or QPSK modulation symbol need to send (M＞0), its corresponding channel-encoded bit is M (BPSK) or 2M (QPSK) individual (the information bit number can multiply by encoding rate with the channel-encoded bit number and obtain), and above-mentioned preferred embodiment can be described as:
When having only an additional information bits to transmit, we are divided into 1 group to this M or 2M channel-encoded bit, and when this bit was " 0 ", this group adopted the modulator approach of the method A that describes in the background technology of front; When this bit is " 1 ", and the modulator approach that this group employing previous methods B describes (certainly, in the time of also can working as this bit for " 0 ", the modulator approach that this group employing previous methods B describes; When this bit is " 1 ", the modulator approach that this group adopts previous methods A to describe).
When two additional information bits need be transmitted, we were divided into two groups (be group 1 such as preceding (M/2) or M channel-encoded bit, back (M/2) or M channel-encoded bit are group 2) to this M or 2M channel-encoded bit:
When additional information bits=" 00 ", the modulator approach that group 1 adopts previous methods A to describe, the modulator approach that group 2 adopts previous methods A to describe;
When additional information bits=" 01 ", the modulator approach that group 1 adopts previous methods A to describe, the modulator approach that group 2 adopts previous methods B to describe;
When additional information bits=" 10 ", the modulator approach that group 1 adopts previous methods B to describe, the modulator approach that group 2 adopts previous methods A to describe;
When additional information bits=" 11 ", the modulator approach that group 1 adopts previous methods B to describe, the modulator approach that group 2 adopts previous methods B to describe;
When modulation symbol was counted M＞2, said method can be extrapolated to the situation of additional information bits＞2.Utilize said method, the additional information bits number mostly is M most.
The sending method that adopts the foregoing description to provide need not improve the purpose that order of modulation just can reach extra transmission information, has guaranteed the efficient of transmitter power amplifier.Simultaneously, BPSK or QPSK modulation system are used very general in communication system, and technology is also very ripe, has the characteristics that are easy to that realize.
Transmitter temporary needs pilosity gives several information bits.Such as, generally, certain transmitter sends 20 bit informations (below title information A) in 1ms, at some in particular cases, this transmitter need utilize same asset additionally to send 2 bit informations (following title information B) again, and requires information B to detect the detection error rate that error rate is lower than the information A of front.If utilize the method that improves order of modulation, information B/ information A detects performance will all be worse than the detection performance that only sends information A, and above-mentioned requirement can't meet the demands.
In actual applications, M all bigger usually (few also has tens), and need the extra information bit that sends fewer usually (such as, 1 or 2, generally can be above 10, because too many words, system can distribute special resource to send these bits, there is no need to utilize the resource that sends out of Memory to send), at this moment, these less additional information bits are actually by more modulation symbol carries, therefore, by suitable M value and the additional information bits number that needs to send of being provided with, the detection error rate of these additional information bits (information B) is the detection error rate that can be lower than the information A of front.
For ease of profound understanding the present invention, be example with the channel architecture schematic diagram shown in the accompanying drawing 2 below, provide some and comprise embodiments of the invention.
Accompanying drawing 2 has provided a kind of channel architecture schematic diagram that is used for transmitting channel quality indication (CQI) bit: the subframe of 1ms comprises 2 time slots, and each time slot is 0.5ms.Each time slot comprises 7 symbols again, and each symbol comprises 12 subcarriers again at frequency domain, and wherein reference signal (RS) is positioned at the 1st and the 5th symbol of each time slot.This channel architecture can send 20 CQI coded-bits altogether at 1ms in the time.Its processing procedure is:
20 CQI coded-bits are carried out the QPSK modulation, obtain 10 QPSK modulation symbols;
(k=0,1...9) to carry out spreading factor be 12 frequency domain expansion to individual modulation symbol, is mapped to respectively on the carrier wave of k symbol (symbols at 4 reference signal places of deduction) of channel noted earlier to k.
In some cases, transmitter need utilize foregoing channel architecture to send 1～2 response message bit again when sending 20 CQI coded-bits, and requires the detection performance of information bit to be better than the CQI bit.
The sending method that adopts the embodiment of the invention to propose can be easy to realize above-mentioned purpose.
Fig. 3 shows the channel architecture schematic diagram that the signaling method according to the embodiment of the invention obtains.
When this bit=" 0 ", when 20 CQI coded-bits being carried out the QPSK modulation, adopt foregoing QPSK modulator approach A to modulate;
When this bit=" 1 ", when 20 CQI coded-bits being carried out the QPSK modulation, adopt foregoing QPSK modulator approach B to modulate.
Fig. 4 shows the channel architecture schematic diagram that the signaling method according to the embodiment of the invention obtains.
20 CQI coded-bits are divided into two groups, and preceding 10 CQI coded-bits are group 1, and back 10 CQI coded-bits are group 2.
When response message bit=" 00 ", the modulator approach that group 1 adopts previous methods A to describe, the modulator approach that group 2 adopts previous methods A to describe;
When response message bit=" 01 ", the modulator approach that group 1 adopts previous methods A to describe, the modulator approach that group 2 adopts previous methods B to describe;
When response message bit=" 10 ", the modulator approach that group 1 adopts previous methods B to describe, the modulator approach that group 2 adopts previous methods A to describe;
When response message bit=" 11 ", the modulator approach that group 1 adopts previous methods B to describe, the modulator approach that group 2 adopts previous methods B to describe.
Fig. 5 shows the flow chart according to the extraneous information detection method that is used for wireless communication system of the embodiment of the invention, and wireless communication system adopts BPSK or QPSK modulation system, may further comprise the steps:
Step S40, the receive channel coding;
Step S50, the modulator approach that the packet group of judging chnnel coding is counted L and every group is first method or second method in two kinds of modulator approaches of BPSK or QPSK modulation system; And
Step S60 counts the modulator approach of L and every group and judges the extraneous information that chnnel coding is carried according to packet group.
The sending method of this detection method and front embodiment is corresponding.The extraneous information detection method that is used for wireless communication system of the foregoing description adopts the combination of modulator approach to load extraneous information because can detect, so overcome the problem that adopts high-order modulating to cause peak-to-average force ratio to improve, and then reached the effect of the efficient that has guaranteed the transmitter power amplifier.
Preferably, judge L=1, step S60 specifically comprises: when the modulator approach of judging whole chnnel codings is when adopting first method, judge that extraneous information is first symbol; And when the modulator approach of judging whole chnnel codings is employing second method, judge that extraneous information is second symbol.
Preferably, judge L≤2; Step S60 specifically comprises:
When the modulator approach of judging first group of chnnel coding is to adopt first method, when the modulator approach of second group of chnnel coding is employing first method, judge that extraneous information is first symbol;
When the modulator approach of judging first group of chnnel coding is to adopt first method, when the modulator approach of second group of chnnel coding is employing second method, judge that extraneous information is second symbol;
When the modulator approach of judging first group of chnnel coding is to adopt second method, when the modulator approach of second group of chnnel coding is employing first method, judge that extraneous information is the 3rd symbol; And
When the modulator approach of judging first group of chnnel coding is to adopt second method, when the modulator approach of second group of chnnel coding is employing second method, judge that extraneous information is the 4th symbol.
Fig. 6 shows the flow chart of detection method according to the preferred embodiment of the invention.Being 2 with the response message bit below is example, provides receiver to replying the detection method of information bit and CQI information bit:
Step 1: channel compensation and de-spread;
The reference signal that the receiver utilization receives is carried out channel estimating, obtains the channel estimating of each each carrier wave of symbol in the CQI channel, establishes k (k=0,1...9) n (n=0 of individual symbol, 1...11) channel estimating of individual carrier wave is H[k, n], establish k (k=0 in addition, 1...9) n (n=0 of individual symbol, 1...11) signal that receives on the individual carrier wave is R[k, n], k (k=0,1...9) the frequency domain expansion sequence that adopts of individual symbol is C[k, n].
Then,
Signal behind the channel compensation: D[k, n]=R[k, n] H
*[k, n], k=0...9, n=0,1...11.
Wherein, H
*[k, n] sends H[k, n] conjugation.
Signal after the de-spread:
D[k，n]C
*[k，n]，k＝0...9，n＝0，1...11.
Wherein, C
*[k, n] sends C
*The conjugation of [k, n].
Step 2:QPSK demodulation;
According to QPSK modulator approach A to P[k] carry out demodulation, obtain sequence S[0, p], p=0,1...19;
According to QPSK modulator approach B to P[k] carry out demodulation, obtain sequence S[1, p], p=0,1...19;
Step 3: demodulated sequence remodulates;
To sequence S[0, p], p=0,1...19 modulates according to QPSK modulator approach A, obtains sequence P[1, k], k=0,1...9;
To sequence S[1, p], p=0,1...19 modulates according to QPSK modulator approach B, obtains sequence P[2, k], k=0,1...9
Step 4: measure calculation and judgement;
Utilize sequence S[0, p] and sequence S[1, p], p=0,1...19, tectonic sequence S[2, p] and sequence S[3, p]
Utilize sequence P[0, k] and sequence P[1, k], tectonic sequence P[2, k] and sequence P[3, k]
Be calculated as follows and measure:
Compare M[i then], minimum is measured corresponding i value, carries out as acting according to the i value:
| The i value | The response message bit decision | The judgement of CQI information bit |
| ?0 | ?00 | ?S[0，p]，p＝0，1...19 |
| ?1 | ?11 | ?S[3，p]，p＝0，1...19 |
| ?2 | ?01 | ?S[1，p]，p＝0，1...19 |
| ?3 | ?10 | ?S[2，p]，p＝0，1...19 |
In this embodiment, response message carries (in the present embodiment, be 120, correspondingly, the judgement of response message also relates to all CQI modulation symbols) by all CQI modulation symbols, so the detection performance of response message is much better than the detection performance of COI bit.Conversely, to cause CQI to separate the wrong probability that takes place very little owing to response message is separated mistake, and therefore, utilizing the CQI structure to carry response message also is very little to the detection Effect on Performance of CQI information.
Fig. 7 shows the block diagram according to the subscriber equipment of the embodiment of the invention, and subscriber equipment adopts BPSK or QPSK modulation system, comprising:
Sending module 30 is used to send the chnnel coding after the modulation.
The subscriber equipment that is used for wireless communication system of the foregoing description is because adopt the combination of modulator approach to load extraneous information, so overcome the problem that adopts high-order modulating to cause peak-to-average force ratio to improve, and then reached the effect of the efficient that has guaranteed the transmitter power amplifier.
Preferably, modulation module 20 specifically comprises:
Grouped element is used for when judge module M=1 and L=1 whole chnnel codings being classified as 1 group;
Modulating unit when being used for extraneous information and being first symbol, adopts first method to modulate whole chnnel codings; And extraneous information adopts second method to modulate whole chnnel codings when being second symbol.
Preferably, modulation module 20 specifically comprises:
Grouped element is used for when judge module is judged M=2 and L≤2 whole chnnel codings being classified as the L group;
Modulating unit when being used for extraneous information and being first symbol, adopts first method to modulate first group of chnnel coding, adopts first method to modulate second group of chnnel coding; When extraneous information is second symbol, adopt first method to modulate first group of chnnel coding, adopt second method to modulate second group of chnnel coding; When extraneous information is the 3rd symbol, adopt second method to modulate first group of chnnel coding, adopt first method to modulate second group of chnnel coding; And extraneous information adopts second method to modulate first group of chnnel coding when being the 4th symbol, adopts second method to modulate second group of chnnel coding.
Fig. 8 shows the block diagram according to the base station of the embodiment of the invention, and BPSK or QPSK modulation system are adopted in the base station, comprising:
The modulator approach that detection module 50, the packet group that is used for judging chnnel coding are counted L and every group is first method or second method of two kinds of modulator approaches of BPSK or QPSK modulation system; And
The subscriber equipment of this base station and front embodiment is corresponding.The base station of the foregoing description loads extraneous information because can detect the combination of employing modulator approach, thus overcome the problem that adopts high-order modulating to cause peak-to-average force ratio to improve, and then reached the effect of the efficient that has guaranteed the transmitter power amplifier.
Preferably, judge module 60 specifically comprises:
First identifying unit is used for judging L=1 when detection module that all the modulator approach of chnnel coding is when adopting first method, judges that extraneous information is first symbol; And
Second identifying unit is used for judging L=1 when detection module that the modulator approach of judging whole chnnel codings is when adopting second method, judges that extraneous information is second symbol.
Preferably, judge module 60 specifically comprises:
First identifying unit, being used for judging the modulator approach of L≤2, the first group chnnel coding when detection module is to adopt first method, the modulator approach of second group of chnnel coding is when adopting first method, judges that extraneous information is first symbol;
Second identifying unit, being used for judging the modulator approach of L≤2, the first group chnnel coding when detection module is to adopt first method, the modulator approach of second group of chnnel coding is when adopting second method, judges that extraneous information is second symbol;
The 3rd identifying unit is used for judging L≤2 when detection module that the modulator approach of judging first group of chnnel coding is to adopt second method, and the modulator approach of second group of chnnel coding is when adopting first method, judges that extraneous information is the 3rd symbol; And
The 4th identifying unit is used for judging L≤2 when detection module that the modulator approach of judging first group of chnnel coding is to adopt second method, and the modulator approach of second group of chnnel coding is when adopting second method, judges that extraneous information is the 4th symbol.
In a word, corresponding to binary extraneous information, the extraneous information of L bit can have 2
LIndividual value.In the present invention because and BPSK and QPSK have 2 kinds of modulator approaches respectively, so when M modulation symbol (promptly chnnel coding can be divided at most M group),, just can obtain 2 as long as chnnel coding is divided into the L group
LIndividual combinations of modulation, as long as L is not more than M, just can represent correspondingly this 2
LIndividual extraneous information value.
As can be seen from the above description, the above embodiment of the present invention has realized following technique effect:
1, adopts method provided by the invention, need not improve the purpose that order of modulation just can reach extra transmission information, guaranteed the efficient of transmitter power amplifier.
2, BPSK that uses among the present invention or QPSK modulation system are used very generally in communication system, and technology is also very ripe, has the characteristics that are easy to that realize.
3, by suitable M value and the additional information bits number that needs to send of being provided with, the detection error rate of these additional information bits (information B) is the detection error rate that can be lower than the information A of front.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. extraneous information sending method that is used for wireless communication system, described wireless communication system adopts BPSK or QPSK modulation system, it is characterized in that, may further comprise the steps:
The modulation symbol that judgement needs the additional information bits of transmission to count no more than described BPSK of L or QPSK modulation system is counted M;
The chnnel coding that needs are sent is divided into the L group, corresponding to different described extraneous informations, adopts in two kinds of modulator approaches in described BPSK or the QPSK modulation system first method to modulate with one of second method different combination to described L group chnnel coding; And
Send the described chnnel coding after modulating.
2. extraneous information sending method according to claim 1 is characterized in that, judges M=1 and L=1; The chnnel coding that needs are sent is divided into the L group, corresponding to different described extraneous informations, adopt in two kinds of modulator approaches in described BPSK or the QPSK modulation system first method to modulate specifically to described L group chnnel coding and comprise with one of second method different combination:
Whole described chnnel codings are classified as 1 group;
When described extraneous information is first symbol, adopt described first method to modulate whole described chnnel codings; And
When described extraneous information is second symbol, adopt described second method to modulate whole described chnnel codings.
3. extraneous information sending method according to claim 1 is characterized in that, judges M=2 and L≤2; The chnnel coding that needs are sent is divided into the L group, corresponding to different described extraneous informations, adopt in two kinds of modulator approaches in described BPSK or the QPSK modulation system first method to modulate specifically to described L group chnnel coding and comprise with one of second method different combination:
Whole described chnnel codings are classified as the L group;
When described extraneous information is first symbol, adopt described first method to modulate first group of described chnnel coding, adopt described first method to modulate second group of described chnnel coding;
When described extraneous information is second symbol, adopt described first method to modulate first group of described chnnel coding, adopt described second method to modulate second group of described chnnel coding;
When described extraneous information is the 3rd symbol, adopt described second method to modulate first group of described chnnel coding, adopt described first method to modulate second group of described chnnel coding; And
When described extraneous information is the 4th symbol, adopt described second method to modulate first group of described chnnel coding, adopt described second method to modulate second group of described chnnel coding.
4. extraneous information detection method that is used for wireless communication system, described wireless communication system adopts BPSK or QPSK modulation system, it is characterized in that, may further comprise the steps:
The receive channel coding;
The modulator approach that the packet group of judging described chnnel coding is counted L and every group is first method or second method in two kinds of modulator approaches of described BPSK or QPSK modulation system; And
Count L and described every group modulator approach is judged the extraneous information that described chnnel coding is carried according to described packet group.
5. extraneous information detection method according to claim 4 is characterized in that, judges L=1; Count L and described every group modulator approach judges that the extraneous information that described chnnel coding is carried specifically comprises according to described packet group:
When the modulator approach of judging whole described chnnel codings is when adopting described first method, to judge that described extraneous information is first symbol; And
When the modulator approach of judging whole described chnnel codings is when adopting described second method, to judge that described extraneous information is second symbol.
6. extraneous information detection method according to claim 4 is characterized in that, judges L≤2; Count L and described every group modulator approach judges that the extraneous information that described chnnel coding is carried specifically comprises according to described packet group:
When the modulator approach of judging first group of described chnnel coding is to adopt described first method, the modulator approach of second group of described chnnel coding is when adopting described first method, to judge that described extraneous information is first symbol;
When the modulator approach of judging first group of described chnnel coding is to adopt described first method, the modulator approach of second group of described chnnel coding is when adopting described second method, to judge that described extraneous information is second symbol;
When the modulator approach of judging first group of described chnnel coding is to adopt described second method, the modulator approach of second group of described chnnel coding is when adopting described first method, to judge that described extraneous information is the 3rd symbol; And
When the modulator approach of judging first group of described chnnel coding is to adopt described second method, the modulator approach of second group of described chnnel coding is when adopting described second method, to judge that described extraneous information is the 4th symbol.
7. subscriber equipment, it adopts BPSK or QPSK modulation system, it is characterized in that,
Comprise:
Judge module is used to judge that additional information bits that needs send counts the modulation symbol of no more than described BPSK of L or QPSK modulation system and count M;
Modulation module, be used for the chnnel coding that needs send is divided into the L group, corresponding to different described extraneous informations, adopt in two kinds of modulator approaches in described BPSK or the QPSK modulation system first method to modulate with one of second method different combination to described L group chnnel coding; And
Sending module is used to send the described chnnel coding after the modulation.
8. subscriber equipment according to claim 7 is characterized in that, described modulation module specifically comprises:
Grouped element is used for when described judge module M=1 and L=1 whole described chnnel codings being classified as 1 group;
Modulating unit when being used for described extraneous information and being first symbol, adopts described first method to modulate whole described chnnel codings; And described extraneous information adopts described second method to modulate whole described chnnel codings when being second symbol.
9. subscriber equipment according to claim 7 is characterized in that, described modulation module specifically comprises:
Grouped element is used for when described judge module is judged M=2 and L≤2,
Whole described chnnel codings are classified as the L group;
Modulating unit when being used for described extraneous information and being first symbol, adopts described first method to modulate first group of described chnnel coding, adopts described first method to modulate second group of described chnnel coding; When described extraneous information is second symbol, adopt described first method to modulate first group of described chnnel coding, adopt described second method to modulate second group of described chnnel coding; When described extraneous information is the 3rd symbol, adopt described second method to modulate first group of described chnnel coding, adopt described first method to modulate second group of described chnnel coding; And described extraneous information adopts described second method to modulate first group of described chnnel coding when being the 4th symbol, adopts described second method to modulate second group of described chnnel coding.
10. base station, it adopts BPSK or QPSK modulation system, it is characterized in that, comprising:
Receiver module is used for the receive channel coding;
The modulator approach that detection module, the packet group that is used for judging described chnnel coding are counted L and every group is first method or second method of two kinds of modulator approaches of described BPSK or QPSK modulation system; And
Judge module is used for counting L and described every group modulator approach is judged the extraneous information that described chnnel coding is carried according to described packet group.
11. base station according to claim 10 is characterized in that, described judge module specifically comprises:
First identifying unit is used for judging L=1 when described detection module, and the modulator approach of whole described chnnel codings is when adopting described first method, to judge that described extraneous information is first symbol; And
Second identifying unit is used for judging L=1 when described detection module, and the modulator approach of judging whole described chnnel codings is when adopting described second method, to judge that described extraneous information is second symbol.
12. base station according to claim 10 is characterized in that, described judge module specifically comprises:
First identifying unit, be used for judging L≤2 when described detection module, the modulator approach of first group of described chnnel coding is to adopt described first method, and the modulator approach of second group of described chnnel coding is when adopting described first method, to judge that described extraneous information is first symbol;
Second identifying unit, be used for judging L≤2 when described detection module, the modulator approach of first group of described chnnel coding is to adopt described first method, and the modulator approach of second group of described chnnel coding is when adopting described second method, to judge that described extraneous information is second symbol;
The 3rd identifying unit, be used for judging L≤2 when described detection module, the modulator approach of judging first group of described chnnel coding is to adopt described second method, and the modulator approach of second group of described chnnel coding is when adopting described first method, to judge that described extraneous information is the 3rd symbol; And
The 4th identifying unit, be used for judging L≤2 when described detection module, the modulator approach of judging first group of described chnnel coding is to adopt described second method, and the modulator approach of second group of described chnnel coding is when adopting described second method, to judge that described extraneous information is the 4th symbol.
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