CN101217527B - Extraneous information sending method and detection method and base station and subscriber equipment - Google Patents
Extraneous information sending method and detection method and base station and subscriber equipment Download PDFInfo
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- CN101217527B CN101217527B CN200810001560.3A CN200810001560A CN101217527B CN 101217527 B CN101217527 B CN 101217527B CN 200810001560 A CN200810001560 A CN 200810001560A CN 101217527 B CN101217527 B CN 101217527B
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Abstract
The invention provides a kind of extraneous information sending method for wireless communication system, wireless communication system adopts BPSK or QPSK modulation system, comprises the following steps: judge the modulation symbol number M needing no more than BPSK or the QPSK modulation system of additional information bits number L of transmission；The chnnel coding sent will be needed to be divided into L group, corresponding to different extraneous informations, L group chnnel coding adopts first method in two kinds of modulator approaches in BPSK or QPSK modulation system be modulated with second method different combination；And send the chnnel coding after modulation.Present invention also offers extraneous information detection method, and base station and subscriber equipment.The present invention can send multiple extraneous information without improving order of modulation.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of extraneous information sending method for wireless communication system and detection method, and base station and subscriber equipment (UserEquipment, UE).
Background technology
In a wireless communication system, information bit generally goes through following process before sending: a) information bit is carried out chnnel coding, obtains coded-bit；B) coded-bit is modulated, obtains modulation symbol.
BPSK (BinaryPhaseShiftKeying, bi-phase shift keying), QPSK (QuaternaryPhaseShiftKeying, quadriphase PSK) are two kinds of modulation systems conventional in wireless communication system.
For BPSK, the corresponding modulation symbol of each channel-encoded bit, specifically have two kinds to realize method:
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；It is imaginary unit that channel-encoded bit " 1 " is modulated to-j, j；
For QPSK, the corresponding modulation symbol of each two channel-encoded bit, specifically also there are two kinds and realize method:
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, if information bit is 10, to its chnnel coding carrying out 1/2, obtain 20 coded-bits, then these 20 coded-bits are carried out BPSK modulation, just obtain 20 modulation symbols (BPSK modulation symbol).
In certain (number of modulation symbols the is certain) situation of resource, want to send more bit, generally have following three kinds of methods:
1) encoding rate is improved.Such as, it is assumed that number of modulation symbols=20, it is desirable to adopt BPSK modulation, if channel encoding rate is 4/5, now just can transmit 16 bits；
2) order of modulation is improved.Such as, it is assumed that number of modulation symbols=20, it is desirable to adopt the chnnel coding of 1/2, if adopting QAM-16 modulation, 40 bits can now just be transmitted.
3) mixing of two kinds of methods before.
Three kinds of methods recited above are obtained for extensive use in a wireless communication system.But, in realizing process of the present invention, inventor have found that in prior art at least in some cases, directly should but can not achieve the goal in aforementioned manners.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 can be made to improve, thus seriously reducing the power amplification efficiency of mobile phone.When mobile phone is positioned at cell edge, due to the restriction of mobile phone transmission power and power amplification efficiency, so mobile phone can not utilize order of modulation to improve the purpose realizing multiple carry information bit.
Summary of the invention
It is desirable to provide a kind of extraneous information sending method for wireless communication system and detection method, and subscriber equipment and base station, it is possible to 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, provide a kind of extraneous information sending method for wireless communication system, wireless communication system adopts BPSK or QPSK modulation system, comprises the following steps: judge the modulation symbol number M needing no more than BPSK or the QPSK modulation system of additional information bits number L of transmission；The chnnel coding sent will be needed to be divided into L group, corresponding to different extraneous informations, L group chnnel coding adopts first method in two kinds of modulator approaches in BPSK or QPSK modulation system be modulated with second method different combination；And send the chnnel coding after modulation.
In an embodiment of the present invention, additionally providing a kind of extraneous information detection method for wireless communication system, wireless communication system adopts BPSK or QPSK modulation system, comprises the following steps: receive chnnel coding；The packet group number L judging chnnel coding and the modulator approach often organized are the first method in two kinds of modulator approaches of BPSK or QPSK modulation system or second method；And judge, according to packet group number L and the modulator approach often organized, the extraneous information that chnnel coding is carried.
In an embodiment of the present invention, additionally providing a kind of subscriber equipment, it adopts BPSK or QPSK modulation system, including: judge module, for judging the modulation symbol number M needing no more than BPSK or the QPSK modulation system of additional information bits number L of transmission；Modulation module, for the chnnel coding sent being needed to be divided into L group, corresponding to different extraneous informations, adopts first method in two kinds of modulator approaches in BPSK or QPSK modulation system to be modulated with second method different combination to L group chnnel coding；And sending module, it is used for the chnnel coding after sending modulation.
In an embodiment of the present invention, additionally providing a kind of base station, it adopts BPSK or QPSK modulation system, including: receiver module, it is used for receiving chnnel coding；Detection module, is the first method in two kinds of modulator approaches of BPSK or QPSK modulation system or second method for the packet group number L that judges chnnel coding and the modulator approach often organized；And judge module, for judging, according to packet group number L and the modulator approach often organized, the extraneous information that chnnel coding is carried.
The extraneous information sending method for wireless communication system of the above embodiment of the present invention and detection method, and subscriber equipment and base station, because the combination adopting modulator approach loads extraneous information, so overcoming the problem adopting high-order modulating to cause peak-to-average force ratio to improve, and then reach the effect of the efficiency that ensure that power amplifier in transmitter.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 illustrates the flow chart of the extraneous information sending method for wireless communication system according to embodiments of the present invention；
Fig. 2 illustrates a kind of channel architecture schematic diagram sending Channel Quality Indication bits according to embodiments of the present invention；
Fig. 3 illustrates the channel architecture schematic diagram that signaling method according to embodiments of the present invention obtains；
Fig. 4 illustrates the channel architecture schematic diagram that signaling method according to embodiments of the present invention obtains；
Fig. 5 illustrates the flow chart of the extraneous information detection method for wireless communication system according to embodiments of the present invention；
Fig. 6 illustrates the flow chart of detection method according to the preferred embodiment of the invention；
Fig. 7 illustrates the block diagram of subscriber equipment according to embodiments of the present invention；And
Fig. 8 illustrates the block diagram of base station according to embodiments of the present invention.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, the present invention is described in detail.
Fig. 1 illustrates the flow chart of the extraneous information sending method for wireless communication system according to embodiments of the present invention, and wireless communication system adopts BPSK or QPSK modulation system, comprises the following steps:
Step S10, it is determined that need the modulation symbol number M of no more than BPSK or the QPSK modulation system of additional information bits number L sent；
Step S20, it would be desirable to the chnnel coding of transmission is divided into L group, corresponding to different extraneous informations, adopts first method in two kinds of modulator approaches in BPSK or QPSK modulation system to be modulated with second method different combination to L group chnnel coding；And
Step S30, sends the chnnel coding after modulation.
The extraneous information sending method for wireless communication system of above-described embodiment is because adopting the combination of modulator approach to load extraneous information, so overcoming the problem adopting high-order modulating to cause peak-to-average force ratio to improve, and then reach the effect of the efficiency that ensure that power amplifier in transmitter.
Preferably, it is determined that M=1 and L=1；Step S20 specifically includes: whole chnnel codings are classified as 1 group；When extraneous information is the first symbol, first method is adopted to modulate whole chnnel codings；And extraneous information is when being the second symbol, second method is adopted to modulate whole chnnel codings.
Preferably, it is determined that M=2 and L≤2；Step S20 specifically includes:
Whole chnnel codings are classified as L group；
When extraneous information is the 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 the 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 three 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 four symbol, adopt second method to modulate first group of chnnel coding, adopt second method to modulate second group of chnnel coding.
Assume that total M BPSK or QPSK modulation symbol needs to send (M > 0), the channel-encoded bit of its correspondence is M (BPSK) or 2M (QPSK) individual (information bit number can be multiplied by encoding rate with channel-encoded bit number and obtain), and above-mentioned preferred embodiment can be described as:
When only one of which additional information bits needs to transmit, we are divided into 1 group this M or 2M channel-encoded bit, and when this bit is " 0 ", this group adopts the modulator approach of the method A described in foregoing Background；When this bit is " 1 ", this group adopts the previous methods B modulator approach described (it is of course also possible to when this bit is " 0 ", this group adopts the previous methods B modulator approach described；When this bit is " 1 ", this group adopts the previous methods A modulator approach described).
When transmitting when there being two additional information bits to need, we are divided into two groups (before such as, (M/2) or M channel-encoded bit are group 1, and rear (M/2) or M channel-encoded bit are group 2) this M or 2M channel-encoded bit:
When additional information bits=" 00 ", the modulator approach that group 1 employing previous methods A describes, the modulator approach that group 2 employing previous methods A describes；
When additional information bits=" 01 ", the modulator approach that group 1 employing previous methods A describes, the modulator approach that group 2 employing previous methods B describes；
When additional information bits=" 10 ", the modulator approach that group 1 employing previous methods B describes, the modulator approach that group 2 employing previous methods A describes；
When additional information bits=" 11 ", the modulator approach that group 1 employing previous methods B describes, the modulator approach that group 2 employing previous methods B describes；
As modulation symbol number M > 2, said method can be extrapolated to the situation of additional information bits > 2.Utilizing said method, additional information bits number is up to M.
The sending method adopting above-described embodiment to provide, need not improve order of modulation and just can reach additionally to send the purpose of information, it is ensured that the efficiency of power amplifier in transmitter.Meanwhile, BPSK or QPSK modulation system is applied very general in a communications system, and technology is also highly developed, has realization and is easy to feature.
Transmitter temporary needs several information bits of many transmissions.Such as, under normal circumstances, certain transmitter sends 20 bit informations (referred to below as information A) in 1ms, at some in particular cases, this transmitter needs to utilize same asset additionally to send 2 bit informations (referred to below as information B) again, and requires that information B detects the error rate detection error rate lower than information A above.If, with the method improving order of modulation, information B/ information A detects performance will all be worse than the detection performance only sending information A, it is impossible to meets and requires above-mentioned requirement.
In actual applications, M is generally relatively larger (few also has tens), and need the extra information bit sent generally fewer (such as, 1 or 2, general not over 10, because too many words, system can distribute special resource to send these bits, there is no need to utilize the resource sending out of Memory to send), now, these less additional information bits are carried indeed through more modulation symbol, therefore, by suitable, M value and the additional information bits number needing transmission are set, the detection error rate of these additional information bits (information B) is can detection error rate lower than information A above.
For ease of the profound understanding present invention, below for the channel architecture schematic diagram shown in accompanying drawing 2, provide some and comprise embodiments of the invention.
Accompanying drawing 2 gives a kind of channel architecture schematic diagram for sending channel quality instruction (CQI) bit: the subframe of 1ms includes 2 time slots, and each time slot is 0.5ms.Each time slot includes again 7 symbols, and each symbol includes again 12 subcarriers 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 within the 1ms time.Its processing procedure is:
20 CQI coded-bits are carried out QPSK modulation, obtains 10 QPSK modulation symbols；
Kth (k=0,1...9) individual modulation symbol is carried out the frequency domain expansion that spreading factor is 12, is respectively mapped on the carrier wave of kth symbol (symbols at 4 reference signal places of deduction) of channel noted earlier.
In some cases, transmitter needs to utilize foregoing channel architecture to retransmit 1～2 response message bit while sending 20 CQI coded-bits, and requires that the detection performance of information bit is better than CQI bit.
Adopt the sending method that the embodiment of the present invention proposes, it is possible to be easily achieved above-mentioned purpose.
Fig. 3 illustrates the channel architecture schematic diagram that signaling method according to embodiments of the present invention obtains.
When this bit=" 0 ", foregoing QPSK modulator approach A is adopted to be modulated when 20 CQI coded-bits carry out QPSK modulation；
When this bit=" 1 ", foregoing QPSK modulator approach B is adopted to be modulated when 20 CQI coded-bits carry out QPSK modulation.
Fig. 4 illustrates the channel architecture schematic diagram that signaling method according to embodiments of the present invention obtains.
20 CQI coded-bits are divided into two groups, and front 10 CQI coded-bits are group 1, and rear 10 CQI coded-bits are group 2.
When response message bit=" 00 ", the modulator approach that group 1 employing previous methods A describes, the modulator approach that group 2 employing previous methods A describes；
When response message bit=" 01 ", the modulator approach that group 1 employing previous methods A describes, the modulator approach that group 2 employing previous methods B describes；
When response message bit=" 10 ", the modulator approach that group 1 employing previous methods B describes, the modulator approach that group 2 employing previous methods A describes；
When response message bit=" 11 ", the modulator approach that group 1 employing previous methods B describes, the modulator approach that group 2 employing previous methods B describes.
Fig. 5 illustrates the flow chart of the extraneous information detection method for wireless communication system according to embodiments of the present invention, and wireless communication system adopts BPSK or QPSK modulation system, comprises the following steps:
Step S40, receives chnnel coding；
Step S50, it is judged that the packet group number L of chnnel coding and the modulator approach often organized are the first method in two kinds of modulator approaches of BPSK or QPSK modulation system or second method；And
Step S60, judges, according to packet group number L and the modulator approach often organized, the extraneous information that chnnel coding is carried.
This detection method is corresponding with the sending method of preceding embodiment.The extraneous information detection method for wireless communication system of above-described embodiment is because detecting and adopting the combination of modulator approach to load extraneous information, so overcoming the problem adopting high-order modulating to cause peak-to-average force ratio to improve, and then reach the effect of the efficiency that ensure that power amplifier in transmitter.
Preferably, it is determined that L=1, step S60 specifically includes: when the modulator approach judging whole chnnel codings is to adopt first method, it is determined that extraneous information is the first symbol；And when the modulator approach judging whole chnnel codings is to adopt second method, it is determined that extraneous information is the second symbol.
Preferably, it is determined that L≤2；Step S60 specifically includes:
When the modulator approach judging first group of chnnel coding is to adopt first method, and the modulator approach of second group of chnnel coding is to adopt first method, it is determined that extraneous information is the first symbol；
When the modulator approach judging first group of chnnel coding is to adopt first method, and the modulator approach of second group of chnnel coding is to adopt second method, it is determined that extraneous information is the second symbol；
When the modulator approach judging first group of chnnel coding is to adopt second method, and the modulator approach of second group of chnnel coding is to adopt first method, it is determined that extraneous information is the 3rd symbol；And
When the modulator approach judging first group of chnnel coding is to adopt second method, and the modulator approach of second group of chnnel coding is to adopt second method, it is determined that extraneous information is the 4th symbol.
Fig. 6 illustrates the flow chart of detection method according to the preferred embodiment of the invention.Below for response message bit for 2, provide the receiver detection method to response information bit and CQI information bit:
Step 1: channel compensation and de-spread；
Receiver utilizes the reference signal received to carry out channel estimating, obtain the channel estimating of each carrier wave of each symbol in CQI channel, if kth (k=0,1...9) the n-th (n=0 of individual symbol, 1...11) channel estimating of individual carrier wave is H [k, n], additionally set kth (k=0,1...9) the n-th (n=0 of individual symbol, 1...11) signal received on individual carrier wave is R [k, n], kth (k=0,1...9) frequency domain spreading sequences that individual symbol adopts is C [k, n].
Then,
Signal after channel compensation: D [k, n]=R [k, n] H*[k, n], k=0...9, n=0,1...11.
Wherein, H*[k, n] sends the conjugation of H [k, n].
Signal after 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 demodulates；
According to QPSK modulator approach A, P [k] is demodulated, obtains sequence S [0, p], p=0,1...19；
According to QPSK modulator approach B, P [k] is demodulated, obtains sequence S [1, p], p=0,1...19；
Step 3: demodulated sequence remodulates；
To sequence S [0, p], p=0,1...19 is modulated according to QPSK modulator approach A, obtains sequence P [1, k], k=0,1...9；
To sequence S [1, p], p=0,1...19 is modulated 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]
It is calculated as follows and measures:
Then compare M [i], the minimum i value measuring correspondence, carry out judgement as follows according to i value:
| I value | Response message bit decision | CQI information bit decision |
| 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, it (is in the present embodiment, 120, correspondingly that response message is carried by all CQI modulation symbols, the judgement of response message is directed to all CQI modulation symbols), therefore the detection performance of response message is much better than the detection performance of COI bit.In turn, causing that CQI solves the wrong probability occurred due to response message solution mistake only small, therefore, it is also only small for utilizing CQI structure to carry the response message impact on the detection performance of CQI information.
Fig. 7 illustrates the block diagram of subscriber equipment according to embodiments of the present invention, and subscriber equipment adopts BPSK or QPSK modulation system, including:
Judge module 10, for judging the modulation symbol number M needing no more than BPSK or the QPSK modulation system of additional information bits number L of transmission；
Modulation module 20, for the chnnel coding sent being needed to be divided into L group, corresponding to different extraneous informations, adopts first method in two kinds of modulator approaches in BPSK or QPSK modulation system to be modulated with second method different combination to L group chnnel coding；And；And
Sending module 30, is used for the chnnel coding after sending modulation.
The subscriber equipment for wireless communication system of above-described embodiment is because adopting the combination of modulator approach to load extraneous information, so overcoming the problem adopting high-order modulating to cause peak-to-average force ratio to improve, and then reach the effect of the efficiency that ensure that power amplifier in transmitter.
Preferably, modulation module 20 specifically includes:
Grouped element, for as judge module M=1 and L=1, being classified as 1 group by whole chnnel codings；
Modulating unit, when being the first symbol for extraneous information, adopts first method to modulate whole chnnel codings；And extraneous information is when being the second symbol, second method is adopted to modulate whole chnnel codings.
Preferably, modulation module 20 specifically includes:
Grouped element, for when judge module judges M=2 and L≤2, being classified as L group by whole chnnel codings；
Modulating unit, when being the first symbol for extraneous information, adopts first method to modulate first group of chnnel coding, adopts first method to modulate second group of chnnel coding；When extraneous information is the 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 three symbol, adopt second method to modulate first group of chnnel coding, adopt first method to modulate second group of chnnel coding；And extraneous information is when being four symbols, adopt second method to modulate first group of chnnel coding, adopt second method to modulate second group of chnnel coding.
Fig. 8 illustrates the block diagram of base station according to embodiments of the present invention, and base station adopts BPSK or QPSK modulation system, including:
Receiver module 40, is used for receiving chnnel coding；
Detection module 50, is the first method in two kinds of modulator approaches of BPSK or QPSK modulation system or second method for the packet group number L that judges chnnel coding and the modulator approach often organized；And
Judge module 60, for judging, according to packet group number L and the modulator approach often organized, the extraneous information that chnnel coding is carried.
This base station is corresponding with the subscriber equipment of preceding embodiment.The base station of above-described embodiment, because detecting and adopting the combination of modulator approach to load extraneous information, so overcoming the problem adopting high-order modulating to cause peak-to-average force ratio to improve, and then has reached the effect of the efficiency that ensure that power amplifier in transmitter.
Preferably, it is judged that module 60 specifically includes:
First identifying unit, for judging L=1 when detection module, when the modulator approach of whole chnnel codings is to adopt first method, it is determined that extraneous information is the first symbol；And
Second identifying unit, for judging L=1 when detection module, it is determined that when all the modulator approach of chnnel coding is to adopt second method, it is determined that extraneous information is the second symbol.
Preferably, it is judged that module 60 specifically includes:
First identifying unit, for judging L≤2 when detection module, the modulator approach of first group of chnnel coding is to adopt first method, when the modulator approach of second group of chnnel coding is to adopt first method, it is determined that extraneous information is the first symbol；
Second identifying unit, for judging L≤2 when detection module, the modulator approach of first group of chnnel coding is to adopt first method, when the modulator approach of second group of chnnel coding is to adopt second method, it is determined that extraneous information is the second symbol；
3rd identifying unit, for judging L≤2 when detection module, it is determined that the modulator approach of first group of chnnel coding is to adopt second method, when the modulator approach of second group of chnnel coding is to adopt first method, it is determined that extraneous information is the 3rd symbol；And
4th identifying unit, for judging L≤2 when detection module, it is determined that the modulator approach of first group of chnnel coding is to adopt second method, when the modulator approach of second group of chnnel coding is to adopt second method, it is determined that extraneous information is the 4th symbol.
In a word, corresponding to binary extraneous information, the extraneous information of L bit can have 2LIndividual value.In the present invention because and BPSK and QPSK has 2 kinds of modulator approaches respectively, so when there being M modulation symbol (namely chnnel coding can be divided at most M group), as long as chnnel coding being divided into L group, it is possible to obtain 2LIndividual combinations of modulation, as long as L is not more than M, it becomes possible to represent correspondingly this 2LIndividual extraneous information value.
As can be seen from the above description, the above embodiment of the present invention achieves following technique effect:
1, adopt method provided by the invention, order of modulation need not be improved and just can reach additionally to send the purpose of information, it is ensured that the efficiency of power amplifier in transmitter.
2, BPSK or the QPSK modulation system used in the present invention is applied very general in a communications system, and technology is also highly developed, has realization and is easy to feature.
3, being arranged M value by suitable and needed the additional information bits number that sends, the detection error rate of these additional information bits (information B) is can detection error rate lower than information A above.
Obviously, those skilled in the art should be understood that, each module of the above-mentioned present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or it is distributed on the network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, can be stored in storage device is performed by calculation element, or they are fabricated to respectively each integrated circuit modules, or the multiple modules in them or step are fabricated to single integrated circuit module realize.So, the present invention is not restricted to the combination of any specific hardware and software.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (12)
1., for an extraneous information sending method for wireless communication system, described wireless communication system adopts bi-phase shift keying BPSK or quadriphase PSK QPSK modulation system, it is characterised in that comprise the following steps:
Judge the modulation symbol number M needing no more than described BPSK or the QPSK modulation system of additional information bits number L of transmission；
It is divided into L group by needing the chnnel coding sent, described L group chnnel coding is respectively adopted one of two kinds of modulator approaches in described BPSK or QPSK modulation system be modulated, wherein, corresponding to different described extraneous informations, in the two modulator approach, first method is different with the combination of second method；And
Send the described chnnel coding after modulation.
2. extraneous information sending method according to claim 1, it is characterised in that judge M=1 and L=1；It is divided into L group by needing the chnnel coding sent, described L group chnnel coding is respectively adopted one of two kinds of modulator approaches in described BPSK or QPSK modulation system be modulated, wherein, corresponding to different described extraneous informations, in the two modulator approach, first method is different with the combination of second method specifically includes:
Whole described chnnel codings are classified as 1 group；
When described extraneous information is the first symbol, described first method is adopted to modulate whole described chnnel codings；And
When described extraneous information is the second symbol, described second method is adopted to modulate whole described chnnel codings.
3. extraneous information sending method according to claim 1, it is characterised in that judge M=2 and L≤2；It is divided into L group by needing the chnnel coding sent, described L group chnnel coding is respectively adopted one of two kinds of modulator approaches in described BPSK or QPSK modulation system be modulated, wherein, corresponding to different described extraneous informations, in the two modulator approach, first method is different with the combination of second method specifically includes:
Whole described chnnel codings are classified as L group；
When described extraneous information is the first symbol, adopt described first method to modulate chnnel coding described in first group, adopt described first method to modulate chnnel coding described in second group；
When described extraneous information is the second symbol, adopt described first method to modulate chnnel coding described in first group, adopt described second method to modulate chnnel coding described in second group；
When described extraneous information is three symbol, adopt described second method to modulate chnnel coding described in first group, adopt described first method to modulate chnnel coding described in second group；And
When described extraneous information is four symbol, adopt described second method to modulate chnnel coding described in first group, adopt described second method to modulate chnnel coding described in second group.
4., for an extraneous information detection method for wireless communication system, described wireless communication system adopts bi-phase shift keying BPSK or quadriphase PSK QPSK modulation system, it is characterised in that comprise the following steps:
Receive chnnel coding；
The packet group number L judging described chnnel coding and the modulator approach often organized are the first method in two kinds of modulator approaches of described BPSK or QPSK modulation system or second method；And
The extraneous information that described chnnel coding is carried is judged according to described packet group number L and the described modulator approach often organized.
5. extraneous information detection method according to claim 4, it is characterised in that judge L=1；Judge that the extraneous information that described chnnel coding is carried specifically includes according to described packet group number L and the described modulator approach often organized:
When the modulator approach judging whole described chnnel codings is to adopt described first method, it is determined that described extraneous information is the first symbol；And
When the modulator approach judging whole described chnnel codings is to adopt described second method, it is determined that described extraneous information is the second symbol.
6. extraneous information detection method according to claim 4, it is characterised in that judge L≤2；Judge that the extraneous information that described chnnel coding is carried specifically includes according to described packet group number L and the described modulator approach often organized:
When judging that the modulator approach of chnnel coding described in first group is to adopt described first method, when the modulator approach of chnnel coding described in second group is to adopt described first method, it is determined that described extraneous information is the first symbol；
When judging that the modulator approach of chnnel coding described in first group is to adopt described first method, when the modulator approach of chnnel coding described in second group is to adopt described second method, it is determined that described extraneous information is the second symbol；
When judging that the modulator approach of chnnel coding described in first group is to adopt described second method, when the modulator approach of chnnel coding described in second group is to adopt described first method, it is determined that described extraneous information is the 3rd symbol；And
When judging that the modulator approach of chnnel coding described in first group is to adopt described second method, when the modulator approach of chnnel coding described in second group is to adopt described second method, it is determined that described extraneous information is the 4th symbol.
7. a subscriber equipment, it adopts bi-phase shift keying BPSK or quadriphase PSK QPSK modulation system, it is characterised in that including:
Judge module, for judging the modulation symbol number M needing no more than described BPSK or the QPSK modulation system of additional information bits number L of transmission；
Modulation module, for the chnnel coding sent being needed to be divided into L group, described L group chnnel coding is respectively adopted one of two kinds of modulator approaches in described BPSK or QPSK modulation system be modulated, wherein, corresponding to different described extraneous informations, in the two modulator approach, first method is different with the combination of second method；And
Sending module, is used for the described chnnel coding after sending modulation.
8. subscriber equipment according to claim 7, it is characterised in that described modulation module specifically includes:
Grouped element, for when described judge module judges M=1 and L=1, being classified as 1 group by whole described chnnel codings；
Modulating unit, when being the first symbol for described extraneous information, adopts described first method to modulate whole described chnnel codings；And described extraneous information is when being the second symbol, described second method is adopted to modulate whole described chnnel codings.
9. subscriber equipment according to claim 7, it is characterised in that described modulation module specifically includes:
Grouped element, for when described judge module judges M=2 and L≤2, being classified as L group by whole described chnnel codings；
Modulating unit, when being the first symbol for described extraneous information, adopts described first method to modulate chnnel coding described in first group, adopts described first method to modulate chnnel coding described in second group；When described extraneous information is the second symbol, adopt described first method to modulate chnnel coding described in first group, adopt described second method to modulate chnnel coding described in second group；When described extraneous information is three symbol, adopt described second method to modulate chnnel coding described in first group, adopt described first method to modulate chnnel coding described in second group；And described extraneous information is when being four symbols, adopts described second method to modulate chnnel coding described in first group, adopt described second method to modulate chnnel coding described in second group.
10. a base station, it adopts bi-phase shift keying BPSK or quadriphase PSK QPSK modulation system, it is characterised in that including:
Receiver module, is used for receiving chnnel coding；
Detection module, is the first method in two kinds of modulator approaches of described BPSK or QPSK modulation system or second method for the packet group number L that judges described chnnel coding and the modulator approach often organized；And
Judge module, for judging, according to described packet group number L and the described modulator approach often organized, the extraneous information that described chnnel coding is carried.
11. base station according to claim 10, it is characterised in that described judge module specifically includes:
First identifying unit, for judging L=1 when described detection module, when the modulator approach of whole described chnnel codings is to adopt described first method, it is determined that described extraneous information is the first symbol；And
Second identifying unit, for judging L=1 when described detection module, it is determined that when the modulator approach of whole described chnnel codings is to adopt described second method, it is determined that described extraneous information is the second symbol.
12. base station according to claim 10, it is characterised in that described judge module specifically includes:
First identifying unit, for judging L≤2 when described detection module, the modulator approach of chnnel coding described in first group is to adopt described first method, when the modulator approach of chnnel coding described in second group is to adopt described first method, it is determined that described extraneous information is the first symbol；
Second identifying unit, for judging L≤2 when described detection module, the modulator approach of chnnel coding described in first group is to adopt described first method, when the modulator approach of chnnel coding described in second group is to adopt described second method, it is determined that described extraneous information is the second symbol；
3rd identifying unit, for judging L≤2 when described detection module, judge that the modulator approach of chnnel coding described in first group is to adopt described second method, when the modulator approach of chnnel coding described in second group is to adopt described first method, it is determined that described extraneous information is the 3rd symbol；And
4th identifying unit, for judging L≤2 when described detection module, judge that the modulator approach of chnnel coding described in first group is to adopt described second method, when the modulator approach of chnnel coding described in second group is to adopt described second method, it is determined that described extraneous information is the 4th symbol.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1627662A (en) * | 2003-12-12 | 2005-06-15 | 西门子（中国）有限公司 | Method and equipment for transferring signal in wireless communication system |
| CN1788510A (en) * | 2003-05-14 | 2006-06-14 | 美商内数位科技公司 | Method and apparatus for network management using periodic measurements of indicators |
| CN1875563A (en) * | 2003-11-05 | 2006-12-06 | 美商内数位科技公司 | Method and apparatus for estimating and reporting the quality of a wireless communication channel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1788510A (en) * | 2003-05-14 | 2006-06-14 | 美商内数位科技公司 | Method and apparatus for network management using periodic measurements of indicators |
| CN1875563A (en) * | 2003-11-05 | 2006-12-06 | 美商内数位科技公司 | Method and apparatus for estimating and reporting the quality of a wireless communication channel |
| CN1627662A (en) * | 2003-12-12 | 2005-06-15 | 西门子（中国）有限公司 | Method and equipment for transferring signal in wireless communication system |
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