CN102025442B - Method and device for channel quality indication information of multi-user terminals - Google Patents
Method and device for channel quality indication information of multi-user terminals Download PDFInfo
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- CN102025442B CN102025442B CN 200910093900 CN200910093900A CN102025442B CN 102025442 B CN102025442 B CN 102025442B CN 200910093900 CN200910093900 CN 200910093900 CN 200910093900 A CN200910093900 A CN 200910093900A CN 102025442 B CN102025442 B CN 102025442B
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Abstract
The present invention discloses a method and a device for transmitting channel quality indication information of multi-user terminals, characterized in that: at least two user terminals use the same time frequency resource to transmit respective channel quality indication information; the time frequency resource comprises at least one time domain unit in the time domain and at least two data frequency domain unit sets in the frequency domain; wherein each data frequency domain unit set comprises at least two data frequency domain units, in addition, the channel quality indication information of each user terminal is in at least one data frequency domain unit set and sent in the mode of frequency domain CDMA (Code Division Multiple Access). When in use, the present invention can adjust the bit number transmitted according to the size of channel quality indication information.
Description
Technical field
The present invention relates to communication technical field, refer to especially a kind of transmission method and device of channel quality indication information of multi-user equipment.
Background technology
At 3GPP LTE-A (Long Term Evolution-Advance, long-term evolution upgrading) in, in order to support more high-end transmission means, the user may need to feed back more CQI (Channel Quality Indicator, channel quality indication) bit number.Therefore, in 3GPP LTE-A, be necessary that at 3GPP LTE-A be the new transmission means of CQI Feedback Design.New CQI transmission means need to be supported CQI block size after Multi-encoding effectively, reduces as best one can the expense of CQI feedback simultaneously.
The deficiencies in the prior art are: in 3GPP LTE-A, also there is no effectively to support the CQI feedback scheme under the multi-user.
Summary of the invention
The invention provides a kind of transmission method and device of channel quality indication information of multi-user equipment, can support the CQI block size after Multi-encoding, and can reduce to take the resource of CQI feedback as far as possible.
A kind of transmission method of channel quality indication (CQI) information of multiple users is provided in the embodiment of the present invention, and the method comprises:
at least two user terminals use identical running time-frequency resource transmission channel quality indication (CQI) information separately, described running time-frequency resource comprises at least one time domain unit on time domain, comprise the set of at least two data frequency domain unit on frequency domain, each data frequency domain unit set comprises at least two data frequency domain unit, and, the channel quality indication (CQI) information of each user terminal is at least one data frequency domain unit set, adopt the mode of frequency domain code division multiple access to send, wherein, described each user terminal is at least one data frequency domain unit set, adopt the mode transmitting channel quality indication (CQI) information of frequency domain code division multiple access, comprise:
Described each user terminal generates at least one CQI number, the set of at least one data frequency domain unit of each CQI correspondence according to channel quality indication (CQI) information; And,
The frequency domain spread spectrum code is set, and the element in described frequency domain spread spectrum code is identical with data frequency domain unit number in each data frequency domain unit set, and each element in the frequency domain spread spectrum code is corresponding with a data frequency domain unit in corresponding data frequency domain unit set;
After being multiplied each other, element corresponding in each CQI number and frequency domain spread spectrum code sends on corresponding data frequency domain unit.
A kind of transmission system of channel quality indication (CQI) information of multiple users is provided in the embodiment of the present invention, and this system comprises: at least two user terminals,
Each user terminal, for using transmitting channel quality indication (CQI) information on identical running time-frequency resource, described running time-frequency resource comprises at least one time domain unit on time domain, on frequency domain, comprise the set of at least two data frequency domain unit, each data frequency domain unit set comprises at least two data frequency domain unit, and, according to channel quality indication (CQI) information, generate more than one CQI number, after being multiplied each other, element corresponding in each CQI number and the frequency domain spread spectrum code of setting sends on corresponding data frequency domain unit, wherein
The set of at least one data frequency domain unit of each CQI correspondence, element in described frequency domain spread spectrum code is identical with data frequency domain unit number in each data frequency domain unit set, and each element in the frequency domain spread spectrum code is corresponding with a data frequency domain unit in corresponding data frequency domain unit set.
A kind of transmitting device of channel quality indication (CQI) information is provided in the embodiment of the present invention, and this device comprises:
Acquiring unit is for generation of channel quality indication (CQI) information;
The first transmitting element, for transmitting channel quality indication (CQI) information on the running time-frequency resource setting, described running time-frequency resource comprises at least one time domain unit on time domain, on frequency domain, comprise the set of at least two data frequency domain unit, each data frequency domain unit set comprises at least two data frequency domain unit, and, according to channel quality indication (CQI) information, generate at least one CQI number, after being multiplied each other, element corresponding in each CQI number and the frequency domain spread spectrum code of setting sends on corresponding data frequency domain unit, wherein
The set of at least one data frequency domain unit of each CQI correspondence, element in described frequency domain spread spectrum code is identical with data frequency domain unit number in each data frequency domain unit set, and each element in the frequency domain spread spectrum code is corresponding with a data frequency domain unit in corresponding data frequency domain unit set.
A kind of receiving system of channel quality indication (CQI) information is provided in the embodiment of the present invention, and this device comprises:
Monitoring means is used for the monitoring running time-frequency resource;
The first receiving element, be used for receive channel quality indication (CQI) information on the running time-frequency resource of setting being detected, and, according to the frequency domain spread spectrum code of setting, receive signal on the data frequency domain unit of correspondence, wherein, described signal multiplies each other for element corresponding in each CQI number and corresponding frequency domain spread spectrum code, described running time-frequency resource comprises at least one time domain unit on time domain, comprise the set of at least two data frequency domain unit on frequency domain, each data frequency domain unit set comprises at least two data frequency domain unit.
Beneficial effect of the present invention is as follows:
In the embodiment of the present invention, a plurality of user terminals use identical running time-frequency resource transmission channel quality indication (CQI) information separately, and the channel quality indication (CQI) information of each user terminal adopts the mode of frequency domain code division multiple access to send at least one data frequency domain unit set.Therefore, can according to the size of channel quality indication (CQI) information, adjust the bit number of transmission.
Description of drawings
Fig. 1 be in the embodiment of the present invention 3GPP R8 LTE system PRB to schematic diagram;
Fig. 2 is the schematic diagram that carries out the CQI feedback in embodiment of the present invention 3GPP Rel-8 LTE system on PUCCH;
Fig. 3 be the embodiment of the present invention to support 1 UE, can transmit 288 CQI coded-bits of each UE, there is no the schematic diagram of frequency hopping;
Fig. 4 be the embodiment of the present invention to support 1 UE, can transmit 288 CQI coded-bits of each UE, the schematic diagram of frequency hopping is arranged;
Fig. 5 is the transmission method implementing procedure schematic diagram of the channel quality indication (CQI) information of embodiment of the present invention multiple users;
Fig. 6 be the embodiment of the present invention to support two UE, can transmit 144 CQI coded-bits of each UE, there is no the embodiment of frequency hopping;
Fig. 7 is that the embodiment of the present invention is supported two UE, can transmit 144 CQI coded-bits of each UE, and the embodiment of frequency hopping is arranged;
Fig. 8 is that the embodiment of the present invention is supported two UE, can transmit 72 CQI coded-bits of each UE, there is no the embodiment of frequency hopping;
Fig. 9 is that the embodiment of the present invention is supported two UE, can transmit 72 CQI coded-bits of each UE, and the embodiment of frequency hopping is arranged;
Figure 10 is that the embodiment of the present invention is supported three UE, can transmit 96 CQI coded-bits of each UE, there is no the embodiment of frequency hopping;
Figure 11 is that the embodiment of the present invention is supported three UE, can transmit 96 CQI coded-bits of each UE, and the embodiment of frequency hopping is arranged;
Figure 12 is that the embodiment of the present invention is supported three UE, can transmit 48 CQI coded-bits of each UE, there is no the embodiment of frequency hopping;
Figure 13 is that the embodiment of the present invention is supported three UE, can transmit 48 CQI coded-bits of each UE, and the embodiment of frequency hopping is arranged;
Figure 14 is that the embodiment of the present invention is supported four UE, can transmit 72 CQI coded-bits of each UE, there is no the embodiment of frequency hopping;
Figure 15 is that the embodiment of the present invention is supported four UE, can transmit 72 CQI coded-bits of each UE, and the embodiment of frequency hopping is arranged;
Figure 16 is that the embodiment of the present invention is supported four UE, can transmit 36 CQI coded-bits of each UE, there is no the embodiment of frequency hopping;
Figure 17 is that the embodiment of the present invention is supported four UE, can transmit 36 CQI coded-bits of each UE, and the embodiment of frequency hopping is arranged;
Figure 18 is that the embodiment of the present invention is supported six UE, can transmit 48 CQI coded-bits of each UE, there is no the embodiment of frequency hopping;
Figure 19 is that the embodiment of the present invention is supported six UE, can transmit 48 CQI coded-bits of each UE, and the embodiment of frequency hopping is arranged;
Figure 20 is that the embodiment of the present invention is supported six UE, can transmit 24 CQI coded-bits of each UE, there is no the embodiment of frequency hopping;
Figure 21 is that the embodiment of the present invention is supported six UE, can transmit 24 CQI coded-bits of each UE, and the embodiment of frequency hopping is arranged;
Figure 22 is the structural representation of the transmitting device of the embodiment of the present invention;
Figure 23 is the structural representation of the receiving system of the embodiment of the present invention.
Embodiment
The inventor notices in the invention process, and in 3GPP Rel-8 (3GPP version 8) LTE (Long Term Evolution, Long Term Evolution), UE (User Equipment, subscriber equipment) need to feed back CQI by up channel.ENB (evolution base station) utilizes the CQI of UE feedback, can carry out descending dynamic dispatching.CQI can in the upper transmission of PUCCH (PhysicalUplink Control Channel, Physical Uplink Control Channel), can upward transmit at PUSCH (Physical Uplink Shared Channel, physical uplink link sharing channel).In 3GPP LTE, a PRB (physical resource block, Physical Resource Block) formed by 12 sub-carrier waves, comprise again 7 (conventional CP (Cyclic Prefix in each subcarrier, Cyclic Prefix)) or 6 (expansion CP) individual RE (resource element, resource element)), 2 PRB form one PRB pair, Fig. 1 be 3GPP Rel-8LTE PRB to structural representation, its structure is as shown in Figure 1.
Fig. 2 is 3GPP Rel-8LTE PUCCH CQI feedback system schematic diagram, as shown in the figure, CQI is on the feedback system on PUCCH, and each subframe (1ms) is comprised of a series of OFDM (Orthogonal Frequency Division Multiplex, OFDM) symbol.Take conventional CP (normal CP) length as example, a subframe is comprised of two time slots (slot), and each time slot comprises 7 OFDM symbols.On each PUCCH OFDM symbol, adopt the mode of the multi-user CQI transmission of CDM (Code Division Multiplexing, code division multiplexing).A PRB on, can have at most 12 UE to transmit simultaneously separately CQI.Two OFDM symbols are arranged as pilot tone (being designated RS in figure) in each time slot, 5 symbols are used for transmission CQI data.For each UE, on an OFDM data symbol, can pass through the CQI data after QPSK (Quadrature Phase Shift Keying, quarternary phase-shift keying (QPSK)) transmits the dibit chnnel coding.Therefore, in 3GPP LTE, each UE can transmit 20 CQI coded datas by PUCCH in a subframe.The information bit of the upper CQI of PUCCH mostly is 11 bits most.Detailed 3GPP CQI PUCCH transmission means can be consulted 3GPP TS36.211,3GPP TS36.212, and 3GPP TS36.213.
In 3GPP LTE, CQI can transmit on PUSCH together with data, also can transmit on PUSCH separately.Fig. 3 is for supporting 1 UE, can transmit 288 CQI coded-bits of each UE, there is no (One UE, the 288coded bits per UE of frequency hopping, without frequency hopping) embodiment schematic diagram, the transmission structure without frequency hopping can be referring to Fig. 3 on PUSCH separately for CQI; Fig. 4 is for supporting 1 UE, can transmit 288 CQI coded-bits of each UE, (One UE, the 288 coded bits per UE of frequency hopping are arranged, with frequency hopping) embodiment schematic diagram, CQI carry out separately the transmission structure of frequency hopping on PUSCH can be referring to Fig. 4.For PUSCH, each time slot only has a pilot tone (RS) symbol.On each OFDM data symbol, can be by the bit of QPSK modulation system after 24 CQI codings of transmission on each PRB.Therefore, in 3GPP LTE, when CQI transmitted on PUSCH separately, a PRB was to carrying 288 bits after the CQI coding.The information bit of the upper CQI of PUSCH usually tens to bits up to a hundred.CQI does not adopt the multiuser mode of CDM when transmitting on PUSCH, namely a PUSCH PRB is to transmitting CQI can only for a user.Detailed 3GPP CQI PUSCH transmission means can be consulted 3GPP TS36.211,3GPP TS36.212, and 3GPP TS36.213.
In 3GPP LTE-A, in order to support more high-end transmission means, the user may need to feed back more CQI bit number.Therefore, in 3GPP LTE-A, the transmission mode of the PUCCHCQI of Rel-8 can not be supported the demand of CQI feedback effectively.If adopt the transmission mode of the PUSCH CQI of Rel-8, because a PRB can only give a UE, can cause the increase of CQI feedback overhead.The coded data of considering Rel-8PUCCH CQI is 20 bits, and the coded data of Rel-8PUSCH CQI is 288 bits, is necessary that at 3GPP LTE-A be the new transmission means of CQI Feedback Design.New CQI transmission means also needs effectively to support CQI block size after Multi-encoding, reduces as best one can the expense of CQI feedback simultaneously.
In sum, in 3GPP LTE-A, in order to support more high-end transmission means, the user may need to feed back more CQI bit number.Yet in 3GPP LTE-A, the transmission mode of the PUCCH CQI of Rel-8 can not be supported the demand of CQI feedback effectively.If adopt the transmission mode of the PUSCH CQI of Rel-8, because a PRB can only give a UE, can cause the increase of CQI feedback overhead.The coded data of considering Rel-8PUCCH CQI is 20 bits, and the coded data of Rel-8PUSCH CQI is 288 bits, is necessary that at 3GPP LTE-A be the new transmission means of CQI Feedback Design.New CQI transmission means need to be supported CQI block size after Multi-encoding effectively, reduces as best one can the expense of CQI feedback simultaneously.According to these design principles, will provide the transmission plan of a kind of CQI in the embodiment of the present invention, multiple CQI load is supported in main consideration.On the basis of existing 3GPP LTE Rel-8PUSCH CQI, carry out the orthogonal sequence spread spectrum on frequency domain, thereby make a plurality of UE can same PRB on the mode of dividing by code transmit simultaneously CQI.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
In embodiments of the present invention, a plurality of user terminals use identical running time-frequency resource transmission channel quality indication (CQI) information separately, and the channel quality indication (CQI) information of each user terminal adopts the mode of frequency domain code division multiple access to send at least one data frequency domain unit set.
Fig. 5 is the transmission method implementing procedure schematic diagram of the channel quality indication (CQI) information of multiple users, and shown in Figure 5, the detailed process of embodiment of the present invention method can be as follows:
Step 501: at least two user terminals use identical running time-frequency resource transmission channel quality indication (CQI) information separately, described channel quality indication (CQI) information is at least one data field unit set, adopt the mode of frequency domain code division multiple access to send, wherein, described running time-frequency resource comprises at least one time domain unit on time domain, comprise the set of at least two data frequency domain unit on frequency domain, each data frequency domain unit set comprises at least two data frequency domain unit.
Here, step 501 can realize like this:
Described each user terminal adopts the mode transmitting channel quality indication (CQI) information of frequency domain code division multiple access at least one data frequency domain unit set, comprising:
Described each user terminal generates at least one CQI number, the set of at least one data frequency domain unit of each CQI correspondence according to channel quality indication (CQI) information; And,
The frequency domain spread spectrum code is set, and the element in described frequency domain spread spectrum code is identical with data frequency domain unit number in each data frequency domain unit set, and each element in the frequency domain spread spectrum code is corresponding with a data frequency domain unit in corresponding data frequency domain unit set;
After being multiplied each other, element corresponding in each CQI number and frequency domain spread spectrum code sends on corresponding data frequency domain unit.
In embodiments of the present invention, different CQI number can corresponding different data frequency domain unit set.The set of a plurality of data frequency domain unit also can a corresponding identical CQI number.
Use frequency domain spread spectrum code quadrature in the set of described data frequency domain unit of the different user terminals of same running time-frequency resource.
Step 502: described at least two user terminals are pilot signal transmitted at least one pilot tone time domain unit, and wherein, described time-frequency domain resources also comprises a pilot tone time domain unit set, and described pilot tone time domain unit set comprises at least one pilot tone time domain unit.
Here, use pilot signal that the different user terminals of same pilot tone time-domain resource sends quadrature on described at least one pilot tone time domain unit.
Under another kind of scheme, also can adopt the mode of frequency domain spread spectrum for step 502, namely, described at least two user terminals are pilot signal transmitted at least one pilot tone frequency domain unit, wherein, described time-frequency domain resources also comprises a pilot tone frequency domain unit set, and described pilot tone frequency domain unit set comprises at least one pilot tone frequency domain unit.
Here, use pilot signal quadrature on described at least one pilot tone frequency domain unit of the different user terminals transmission of same pilot tone frequency domain resource.
Need to prove, the execution of step 501 and step 502 specifically can send according to the transmission sequence of information that configures in subframe in no particular order.
Therefore, for the unique user terminal, the running time-frequency resource transmission channel quality indication (CQI) information separately that need to set, and described channel quality indication (CQI) information adopts the mode of frequency domain code division multiple access to send at least one data frequency domain unit set, wherein, described running time-frequency resource comprises on time domain and at least one time domain unit comprises the set of at least two data frequency domain unit on frequency domain, and each data frequency domain unit set comprises at least two data frequency domain unit.
Further illustrate the technical scheme of the inventive method below in conjunction with accompanying drawing.
Embodiment one
Fig. 6 is for adopting the mode of frequency domain CDM, a PRB on support 2 CQI UE.Suppose to adopt the modulation system of QPSK, each CQI UE can transmit 144 CQI coded-bits, i.e. 72 CQI data symbols in a subframe, the information that transmit in two time slots this moment is different, wherein Di is illustrated in corresponding CQI data, and [w1, w2] is frequency expansion sequence.As shown in Figure 6, after each CQI data symbol multiply by corresponding wi, transmit on two RE in same OFDM symbol.[w1, w2] quadrature of different UEs.Any orthogonal sequence can be as [w1, w2].For example, CQI UE1 uses [w1, w2]=[1 ,-1] with [w1, w2]=[1,1], CQIUE2.Similarly, also can adopt hopping structure as shown in Figure 7, namely slot0 takies different frequency bands from slot1, a PRB on can support 2 CQI UE, each CQI UE can transmit 144 CQI bits.
Embodiment two
Fig. 8 is for adopting the mode of frequency domain CDM, a PRB on support 2 CQI UE.Suppose to adopt the modulation system of QPSK, each CQI UE can transmit 72 CQI coded-bits, i.e. 36 CQI data symbols in a subframe, the information that transmit this moment in two time slots is identical, wherein Di is illustrated in corresponding CQI data, and [w1, w2] is frequency expansion sequence.As shown in Figure 8, after each CQI data symbol multiply by mutually deserved wi, transmit on two RE in same OFDM symbol.[w1 w2] quadrature of different UEs.Any orthogonal sequence can be as [w1, w2].For example, CQI UE1 uses [w1, w2]=[1 ,-1] with [w1, w2]=[1,1], CQI UE2.Similarly, also can adopt hopping structure as shown in Figure 9, namely slot0 takies different frequency bands from slot1, a PRB on can support 2 CQI UE, each CQI UE can transmit 72 CQI bits.
Embodiment three
Figure 10 is for adopting the mode of frequency domain CDM, a PRB on support 3 CQI UE.Suppose to adopt the modulation system of QPSK, each CQI UE can transmit 96 CQI coded-bits in a subframe, i.e. 48 CQI data symbols, and the information of transmitting in two time slots at this moment is different, wherein Di is illustrated in corresponding CQI data.[w1, w2, w3] is frequency expansion sequence.As shown in figure 10, after each CQI data symbol multiply by corresponding wi, transmit on an OFDM symbol.[w1 w2 w3] quadrature of different UEs.Any orthogonal sequence can be as [w1, w2, w3].For example, CQI UE1 uses [w1, w2, w3]=[1,1,1], CQI UE2 [w1, w2, w3]=[1, e
J2 π/3, e
J4 π/3], CQI UE3 [w1, w2, w3]=[1, e
J4 π/3, e
J2 π/3].Similarly, also can adopt hopping structure as shown in figure 11, namely slot0 takies different frequency bands from slot1, a PRB on can support 3 CQI UE, each CQI UE can transmit 96 CQI bits.
Embodiment four
Figure 12 is for adopting the mode of frequency domain CDM, a PRB on support 3 CQI UE.Suppose to adopt the modulation system of QPSK, each CQI UE can transmit 48 CQI coded-bits in a subframe, i.e. 24 CQI data symbols, and the information of transmitting in two time slots at this moment is identical, wherein Di is illustrated in corresponding CQI data.[w1, w2, w3] is frequency expansion sequence.As shown in figure 12, after each CQI data symbol multiply by corresponding wi, transmit on an OFDM symbol.[w1, w2, w3] quadrature of different UEs.Any orthogonal sequence can be as [w1, w2, w3].For example, CQI UE1 uses [w1, w2, w3]=[1,1,1], CQIUE2 [w1, w2, w3]=[1, e
J2 π/3, e
J4 π/3], CQI UE3 [w1, w2, w3]=[1, e
J4 π/3, e
J2 π/3].Similarly, also can adopt hopping structure as shown in figure 13, namely slot0 takies different frequency bands from slot1, a PRB on can support 3 CQI UE, each CQIUE can transmit 48 CQI bits.
Embodiment five
Figure 14 supports 4 CQI UE for adopting the mode of frequency domain CDM on a PRB.Suppose to adopt the modulation system of QPSK, each CQI UE can transmit 72 CQI coded-bits in a subframe, i.e. 36 CQI data symbols, and the information of transmitting in two time slots at this moment is different, wherein Di is illustrated in corresponding CQI data.[w1, w2, w3, w4] is frequency expansion sequence.As shown in figure 14, after each CQI data symbol multiply by mutually deserved wi, transmit on an OFDM symbol.[w1, w2, w3, w4] quadrature of different UEs.Any orthogonal sequence can be as [w1, w2, w3, w4].For example, CQI UE1 uses [w1, w2, w3, w4]=[1 ,-1 ,-1,1] with [w1, w2, w3, w4]=[1 ,-1,1 ,-1], CQI UE3 with [w1, w2, w3, w4]=[1,1 ,-1 ,-1], CQI UE4 with [w1, w2, w3, w4]=[1,1,1,1], CQI UE2.Similarly, also can adopt hopping structure as shown in figure 15, namely slot0 takies different frequency bands from slot1, a PRB on can support 4 CQI UE, each CQIUE can transmit 72 CQI bits.
Embodiment six
Figure 16 supports 4 CQI UE for adopting the mode of frequency domain CDM on a PRB.Suppose to adopt the modulation system of QPSK, each CQI UE can transmit 36 CQI coded-bits in a subframe, i.e. 18 CQI data symbols, and the information of transmitting in two time slots at this moment is identical, wherein Di is illustrated in corresponding CQI data.[w1, w2, w3, w4] is frequency expansion sequence.As shown in figure 16, after each CQI data symbol multiply by mutually deserved wi, transmit on an OFDM symbol.[w1, w2, w3, w4] quadrature of different UEs.Any orthogonal sequence can be as [w1, w2, w3, w4].For example, CQI UE1 uses [w1, w2, w3, w4]=[1 ,-1 ,-1,1] with [w1, w2, w3, w4]=[1 ,-1,1 ,-1], CQI UE3 with [w1, w2, w3, w4]=[1,1 ,-1 ,-1], CQI UE4 with [w1, w2, w3, w4]=[1,1,1,1], CQI UE2.Similarly, also can adopt hopping structure as shown in figure 17, namely slot0 takies different frequency bands from slot1, a PRB on can support 4 CQIUE, each CQI UE can transmit 36 CQI bits.
Embodiment seven
Figure 18 supports 6 CQIUE for adopting the mode of frequency domain CDM on a PRB.Suppose to adopt the modulation system of QPSK, each CQIUE can transmit 48 CQI coded-bits in a subframe, i.e. 24 CQI data symbols, and the information of transmitting in two time slots at this moment is different, wherein Di is illustrated in corresponding CQI data.[w1, w2, w3, w4, w5, w6] is frequency expansion sequence.As shown in figure 18, after each CQI data symbol multiply by mutually deserved wi, transmit on an OFDM symbol.[w1, w2, w3, w4, w5, w6] quadrature of different UEs.Any orthogonal sequence can be as [w1, w2, w3, w4, w5, w6].For example:
CQI UE1 uses [w1, w2, w3, w4, w5, w6]=[1,1,1,1,1,1];
CQI UE2 [w1, w2, w3, w4, w5, w6]=[1, e
J2 π/6, e
J4 π/6,-1, e
J8 π/6, e
J10 π/6];
CQI UE3 [w1, w2, w3, w4, w5, w6]=[1, e
J4 π/6, e
J8 π/6, 1, e
J4 π/6, e
J8 π/6];
CQI UE4 uses [w1, w2, w3, w4, w5, w6]=[1 ,-1,1 ,-1,1 ,-1];
CQI UE5 [w1, w2, w3, w4, w5, w6]=[1, e
J8 π/6, e
J4 π/6, 1, e
J8 π/6, e
J4 π/6];
CQI UE5 [w1, w2, w3, w4, w5, w6]=[1, e
J10 π/6, e
J8 π/6,-1, e
J4 π/6, e
J2 π/6].
Similarly, also can adopt hopping structure as shown in figure 19, namely slot0 takies different frequency bands from slot1, a PRB on can support 6 CQI UE, each CQIUE can transmit 48 CQI bits.
Embodiment eight
Figure 20 supports 6 CQI UE for adopting the mode of frequency domain CDM on a PRB.Suppose to adopt the modulation system of QPSK, each CQI UE can transmit 24 CQI coded-bits in a subframe, i.e. 12 CQI data symbols, and the information of transmitting in two time slots at this moment is identical, wherein Di is illustrated in corresponding CQI data.[w1, w2, w3, w4, w5, w6] is frequency expansion sequence.As shown in figure 20, after each CQI data symbol multiply by mutually deserved wi, transmit on an OFDM symbol.[w1, w2, w3, w4, w5, w6] quadrature of different UEs.Any orthogonal sequence can be as [w1, w2, w3, w4, w5, w6].For example,
CQI UE1 uses [w1, w2, w3, w4, w5, w6]=[1,1,1,1,1,1];
CQI UE2 [w1, w2, w3, w4, w5, w6]=[1, e
J2 π/6, e
J4 π/6,-1, e
J8 π/6, e
J10 π/6];
CQIUE3 [w1, w2, w3, w4, w5, w6]=[1, e
J4 π/6, e
J8 π/6, 1, e
J4 π/6, e
J8 π/6];
CQI UE4 uses [w1, w2, w3, w4, w5, w6]=[1 ,-1,1 ,-1,1 ,-1];
CQI UE5 [w1, w2, w3, w4, w5, w6]=[1, ej8 π/6, e
J4 π/6, 1, e
J8 π/6, e
J4 π/6];
CQI UE5 [w1, w2, w3, w4, w5, w6]=[1, e
J10 π/6, e
J8 π/6,-1, e
J4 π/6, e
J2 π/6].
Similarly, also can adopt hopping structure as shown in figure 21, namely slot0 takies different frequency bands from slot1, a PRB on can support 6 CQI UE, each CQI UE can transmit 24 CQI bits.
Need to prove, situation shown in Fig. 6～21 is only various execution mode of the present invention.Following variation all can be included in inventive concept:
Such as: each subframe can comprise 1, and 2, perhaps a plurality of time slots; In each time slot, the number of OFDM symbol can not be 7, and for example in 3GPP LTE, each time slot of expansion CP has 6 OFDM symbols; The RS OFDM symbol of each time slot can be 1 or a plurality of; The position of each time slot RS OFDM symbol and OFDM data symbol can be different from the example in the present invention; Each CQI symbol Di adopts a plurality of subcarriers corresponding to CDM can be different from example in the present invention on time domain; Each CQI symbol Di can modulate by OFDM and obtain, and also can obtain by single carrier OFDM modulation; PRB can by more than or be less than 12 RE and form, each RE can be different from 15KHz in the size of frequency domain; The present invention is take 1,2,3,4,6 CQI UE of support in a PRB as example, but the present invention can expand to other CQI UE number of support in a PRB.Inventive concept can be used for other control information of transmission or data, such as: be different from the control information of CQI.
Based on same inventive concept, the transmitting device of a kind of transmission system of channel quality indication (CQI) information of multiple users, a kind of channel quality indication (CQI) information, a kind of receiving system of channel quality indication (CQI) information also are provided in the embodiment of the present invention, because the principle of these device solves problems is similar to a kind of transmission method of channel quality indication (CQI) information of multiple users, therefore the enforcement of these devices can referring to the enforcement of method, repeat part and not give unnecessary details.
Can comprise in the transmission system of the channel quality indication (CQI) information of the multiple users in the embodiment of the present invention: at least two user terminals,
Each user terminal, be used for using transmitting channel quality indication (CQI) information on identical running time-frequency resource, described running time-frequency resource comprises at least one time domain unit on time domain, comprise the set of at least two data frequency domain unit on frequency domain, each data frequency domain unit set comprises at least two data frequency domain unit, and the channel quality indication (CQI) information of each user terminal adopts the mode of frequency domain code division multiple access to send at least one data frequency domain unit set.
In enforcement, each user terminal can be used for generating more than one CQI number according to channel quality indication (CQI) information, element corresponding in each CQI number and the frequency domain spread spectrum code of setting is multiplied each other afterwards to be sent on corresponding data time domain unit, wherein
The set of at least one data frequency domain unit of each CQI correspondence, element in described frequency domain spread spectrum code is identical with data frequency domain unit number in each data frequency domain unit set, and each element in the frequency domain spread spectrum code is corresponding with a data frequency domain unit in corresponding data frequency domain unit set.
In enforcement, different CQI number can corresponding different data frequency domain unit set.
In enforcement, CQI corresponding to different data frequency domain unit set number can be identical.
In enforcement, use the frequency domain spread spectrum code of the different user terminals of same running time-frequency resource can be on described data field unit set quadrature.
In enforcement, each user terminal can be used for pilot signal transmitted at least one pilot tone frequency domain unit,
Wherein, described time-frequency domain resources also comprises a pilot tone frequency domain unit set, and described pilot tone frequency domain unit set comprises at least one pilot tone frequency domain unit.
In enforcement, each user terminal is used for pilot signal transmitted at least one pilot tone time domain unit,
Wherein, when pilot tone took a plurality of time domains unit and transmits, described time-frequency domain resources also comprised a pilot tone time domain unit set, and described pilot tone time domain unit set comprises at least one pilot tone time domain unit.
In enforcement, use pilot signal that the different user terminals of same pilot tone time-domain resource sends quadrature on described at least one pilot tone time domain unit.
Figure 22 is the transmitting device structural representation of channel quality indication (CQI) information, as shown in the figure, can comprise in device:
Acquiring unit 2201 is for generation of channel quality indication (CQI) information;
The first transmitting element 2202, be used for transmitting channel quality indication (CQI) information on the running time-frequency resource of setting, described channel quality indication (CQI) information the time at least one data frequency domain unit set in resource on, adopt the mode of frequency domain code division multiple access to send, wherein, described running time-frequency resource comprises on time domain and at least one time domain unit comprises the set of at least two data frequency domain unit on frequency domain, and each data frequency domain unit set comprises at least two data frequency domain unit.
In enforcement, the first transmitting element can be used for generating at least one CQI number according to channel quality indication (CQI) information, element corresponding in each CQI number and the frequency domain spread spectrum code of setting is multiplied each other afterwards to be sent on corresponding data field unit, wherein
The set of at least one data frequency domain unit of each CQI correspondence, element in described frequency domain spread spectrum code is identical with data frequency domain unit number in each data frequency domain unit set, and each element in the frequency domain spread spectrum code is corresponding with a data frequency domain unit in corresponding data frequency domain unit set.
In enforcement, different CQI number can corresponding different data frequency domain unit set.
In enforcement, CQI corresponding to different data frequency domain unit set number can be identical.
In enforcement, device may further include:
The second transmitting element 2203 is used for pilot signal transmitted on the pilot tone frequency domain unit of setting,
Wherein, described time-frequency domain resources also comprises a pilot tone frequency domain unit set, and described pilot tone frequency domain unit set comprises at least one pilot tone frequency domain unit.
In enforcement, device may further include:
The 3rd transmitting element 2204 is used for pilot signal transmitted on the pilot tone time domain unit of setting,
Wherein, when pilot tone took a plurality of time domains unit and transmits, described time-frequency domain resources also comprised a pilot tone time domain unit set, and described pilot tone time domain unit set comprises at least one pilot tone time domain unit.
In enforcement, use the pilot signal that the different user terminals of same pilot tone time-domain resource sends can be at quadrature on described at least one pilot tone time domain unit.
Figure 23 is the receiving system structural representation of channel quality indication (CQI) information, as shown in the figure, can comprise in this device:
Monitoring means 2301, resource when being used for monitoring;
The first receiving element 2302, be used for receive channel quality indication (CQI) information on the running time-frequency resource of setting being detected, and, in at least one data frequency domain unit set in the running time-frequency resource of the setting that detects, adopt the mode of frequency domain code division multiple access to receive described channel quality indication (CQI) information, wherein, described running time-frequency resource comprises at least one time domain unit on time domain, comprise the set of at least two data frequency domain unit on frequency domain, each data frequency domain unit set comprises at least two data frequency domain unit.
In enforcement, the first receiving element can be used for receiving signal according to the frequency domain spread spectrum code of setting on the data frequency domain unit of correspondence, and described signal multiplies each other for element corresponding in each CQI number and corresponding frequency domain spread spectrum code.
In enforcement, different CQI number can corresponding different data frequency domain unit set.
In enforcement, CQI corresponding to different data frequency domain unit set number can be identical.
In enforcement, device may further include:
The second receiving element 2303 is used for receiving pilot signal on the pilot tone frequency domain unit of setting,
Wherein, described time-frequency domain resources also comprises a pilot tone frequency domain unit set, and described pilot tone frequency domain unit set comprises at least one pilot tone frequency domain unit.
In enforcement, device may further include:
The 3rd receiving element 2304 is used for receiving pilot signal on the pilot tone time domain unit of setting,
Wherein, when pilot tone took a plurality of time domains unit and transmits, described time-frequency domain resources also comprised a pilot tone time domain unit set, and described pilot tone time domain unit set comprises at least one pilot tone time domain unit.
For the convenience of describing, the each several part of the above device is divided into various modules with function or the unit is described respectively.Certainly, can realize the function of each module or unit in same or a plurality of softwares or hardware when enforcement is of the present invention.
In the embodiment of the present invention, a plurality of user terminals can use identical running time-frequency resource transmission channel quality indication (CQI) information separately, and the channel quality indication (CQI) information of each user terminal adopts the mode of frequency domain code division multiple access to send at least one data frequency domain unit set.Therefore, can according to the size of each channel quality indication (CQI) information, adjust the bit number of transmission.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect fully.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention is that reference is described according to flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the present invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of realizing in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby be provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame in the instruction of carrying out on computer or other programmable devices.
Claims (29)
1. the transmission method of the channel quality indication (CQI) information of a multiple users, is characterized in that, the method comprises:
at least two user terminals use identical running time-frequency resource transmission channel quality indication (CQI) information separately, described running time-frequency resource comprises at least one time domain unit on time domain, comprise the set of at least two data frequency domain unit on frequency domain, each data frequency domain unit set comprises at least two data frequency domain unit, and, the channel quality indication (CQI) information of each user terminal is at least one data frequency domain unit set, adopt the mode of frequency domain code division multiple access to send, wherein, described each user terminal is at least one data frequency domain unit set, adopt the mode transmitting channel quality indication (CQI) information of frequency domain code division multiple access, comprise:
Described each user terminal generates at least one CQI number, the set of at least one data frequency domain unit of each CQI correspondence according to channel quality indication (CQI) information; And,
The frequency domain spread spectrum code is set, and the element in described frequency domain spread spectrum code is identical with data frequency domain unit number in each data frequency domain unit set, and each element in the frequency domain spread spectrum code is corresponding with a data frequency domain unit in corresponding data frequency domain unit set;
After being multiplied each other, element corresponding in each CQI number and frequency domain spread spectrum code sends on corresponding data frequency domain unit.
2. method according to claim 1, is characterized in that, the data frequency domain unit set that different CQI correspondences is different.
3. method according to claim 1, is characterized in that, CQI corresponding to different data frequency domain unit set is number identical.
4. method according to claim 1, is characterized in that, uses frequency domain spread spectrum code quadrature in the set of described data frequency domain unit of the different user terminals of same running time-frequency resource.
5. method according to claim 1, is characterized in that, after element corresponding in each CQI number and frequency domain spread spectrum code is multiplied each other, uses the mode of frequency hopping to send on the data frequency domain unit of correspondence.
6. method according to claim 1, is characterized in that, described running time-frequency resource also comprises a pilot tone frequency domain unit set, and described pilot tone frequency domain unit set comprises at least one pilot tone frequency domain unit,
The method further comprises: described at least two user terminals are pilot signal transmitted at least one pilot tone frequency domain unit.
7. method according to claim 6, is characterized in that, uses pilot signal quadrature on described at least one pilot tone frequency domain unit of the different user terminals transmission of same pilot tone frequency domain resource.
8. method according to claim 1, is characterized in that, when pilot tone took a plurality of time domains unit and transmits, described running time-frequency resource also comprised a pilot tone time domain unit set, and described pilot tone time domain unit set comprises at least one pilot tone time domain unit,
The method further comprises: described at least two user terminals are pilot signal transmitted at least one pilot tone time domain unit.
9. method according to claim 8, is characterized in that, uses pilot signal that the different user terminals of same pilot tone time-domain resource sends quadrature on described at least one pilot tone time domain unit.
10. the transmission system of the channel quality indication (CQI) information of a multiple users, is characterized in that, this system comprises: at least two user terminals,
Each user terminal, for using transmitting channel quality indication (CQI) information on identical running time-frequency resource, described running time-frequency resource comprises at least one time domain unit on time domain, on frequency domain, comprise the set of at least two data frequency domain unit, each data frequency domain unit set comprises at least two data frequency domain unit, and, according to channel quality indication (CQI) information, generate more than one CQI number, after being multiplied each other, element corresponding in each CQI number and the frequency domain spread spectrum code of setting sends on corresponding data frequency domain unit, wherein
The set of at least one data frequency domain unit of each CQI correspondence, element in described frequency domain spread spectrum code is identical with data frequency domain unit number in each data frequency domain unit set, and each element in the frequency domain spread spectrum code is corresponding with a data frequency domain unit in corresponding data frequency domain unit set.
11. system according to claim 10 is characterized in that, the data frequency domain unit set that different CQI correspondences is different.
12. system according to claim 10 is characterized in that, CQI corresponding to different data frequency domain unit set is number identical.
13. system according to claim 10 is characterized in that, uses frequency domain spread spectrum code quadrature in the set of described data frequency domain unit of the different user terminals of same running time-frequency resource.
14. system according to claim 10 is characterized in that, described each user terminal is used for pilot signal transmitted at least one pilot tone frequency domain unit,
Wherein, described running time-frequency resource also comprises a pilot tone frequency domain unit set, and described pilot tone frequency domain unit set comprises at least one pilot tone frequency domain unit.
15. system according to claim 14 is characterized in that, uses pilot signal quadrature on described at least one pilot tone frequency domain unit of the different user terminals transmission of same pilot tone frequency domain resource.
16. system according to claim 10 is characterized in that, described each user terminal is used for pilot signal transmitted at least one pilot tone time domain unit,
Wherein, when pilot tone took a plurality of time domains unit and transmits, described running time-frequency resource also comprised a pilot tone time domain unit set, and described pilot tone time domain unit set comprises at least one pilot tone time domain unit.
17. system according to claim 16 is characterized in that, uses pilot signal that the different user terminals of same pilot tone time-domain resource sends quadrature on described at least one pilot tone time domain unit.
18. the transmitting device of a channel quality indication (CQI) information is characterized in that, this device comprises:
Acquiring unit is for generation of channel quality indication (CQI) information;
The first transmitting element, for transmitting channel quality indication (CQI) information on the running time-frequency resource setting, described running time-frequency resource comprises at least one time domain unit on time domain, on frequency domain, comprise the set of at least two data frequency domain unit, each data frequency domain unit set comprises at least two data frequency domain unit, and, according to channel quality indication (CQI) information, generate at least one CQI number, after being multiplied each other, element corresponding in each CQI number and the frequency domain spread spectrum code of setting sends on corresponding data frequency domain unit, wherein
The set of at least one data frequency domain unit of each CQI correspondence, element in described frequency domain spread spectrum code is identical with data frequency domain unit number in each data frequency domain unit set, and each element in the frequency domain spread spectrum code is corresponding with a data frequency domain unit in corresponding data frequency domain unit set.
19. device according to claim 18 is characterized in that, the data frequency domain unit set that different CQI correspondences is different.
20. device according to claim 18 is characterized in that, CQI corresponding to different data frequency domain unit set is number identical.
21. device according to claim 18 is characterized in that, this device further comprises:
The second transmitting element is used for pilot signal transmitted on the pilot tone frequency domain unit of setting,
Wherein, described running time-frequency resource also comprises a pilot tone frequency domain unit set, and described pilot tone frequency domain unit set comprises at least one pilot tone frequency domain unit.
22. device according to claim 21 is characterized in that, uses pilot signal quadrature on described at least one pilot tone frequency domain unit of the different user terminals transmission of same pilot tone frequency domain resource.
23. device according to claim 18 is characterized in that, this device further comprises:
The 3rd transmitting element is used for pilot signal transmitted on the pilot tone time domain unit of setting,
Wherein, when pilot tone took a plurality of time domains unit and transmits, described running time-frequency resource also comprised a pilot tone time domain unit set, and described pilot tone time domain unit set comprises at least one pilot tone time domain unit.
24. device according to claim 23 is characterized in that, uses pilot signal that the different user terminals of same pilot tone time-domain resource sends quadrature on described at least one pilot tone time domain unit.
25. the receiving system of a channel quality indication (CQI) information is characterized in that, this device comprises:
Monitoring means is used for the monitoring running time-frequency resource;
The first receiving element, be used for receive channel quality indication (CQI) information on the running time-frequency resource of setting being detected, and, according to the frequency domain spread spectrum code of setting, receive signal on the data frequency domain unit of correspondence, wherein, described signal multiplies each other for element corresponding in each CQI number and corresponding frequency domain spread spectrum code, described running time-frequency resource comprises at least one time domain unit on time domain, comprise the set of at least two data frequency domain unit on frequency domain, each data frequency domain unit set comprises at least two data frequency domain unit.
26. device according to claim 25 is characterized in that, the data frequency domain unit set that different CQI correspondences is different.
27. device according to claim 25 is characterized in that, CQI corresponding to different data frequency domain unit set is number identical.
28. device according to claim 25 is characterized in that, this device further comprises:
The second receiving element is used for receiving pilot signal on the pilot tone frequency domain unit of setting,
Wherein, described running time-frequency resource also comprises a pilot tone frequency domain unit set, and described pilot tone frequency domain unit set comprises at least one pilot tone frequency domain unit.
29. device according to claim 25 is characterized in that, this device further comprises:
The 3rd receiving element is used for receiving pilot signal on the pilot tone time domain unit of setting,
Wherein, when pilot tone took a plurality of time domains unit and transmits, described running time-frequency resource also comprised a pilot tone time domain unit set, and described pilot tone time domain unit set comprises at least one pilot tone time domain unit.
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| CN106559101B (en) | 2015-09-25 | 2019-12-10 | 电信科学技术研究院 | Frequency domain spreading and despreading method and device |
| ES2878197T3 (en) * | 2017-05-03 | 2021-11-18 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Wireless communication method, terminal device and network device |
| CN109413621B (en) * | 2018-12-21 | 2021-06-22 | 深圳职业技术学院 | Method for sending combined data in Internet of things |
| CN109639400B (en) * | 2018-12-21 | 2021-04-09 | 深圳职业技术学院 | Method for sending combined data in Internet of things |
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