CN101217682A - MIMO transmitting method, receiving method, system and device - Google Patents

Abstract

The invention discloses a sending method of multi-input multi-output (MIMO), which comprises that: the serial number part that causes redundancy to exist in the information pair of pre-coding control indication (PCI) and channel quality indication (CQI) is gotten rid of; by making use of the PCI and CQI information pair, the serial number redundancy of which is gotten rid of, the indication UE is recommended to adopt pre-coding matrix and CQI information thereof; the PCI and CQI information pair can be loaded on a high-speed dedicated physical control channel (HS-DPCCH) and sent out; in addition, the invention also discloses a MIMO receiving method, a transmission system and a device, which can remove the redundancy in the serial number of the PCI and CQI information pair, thus saving system resource and allowing more CQI information combinations to be provided.

Description

The sending method of multiple-input and multiple-output, method of reseptance, system and device

Technical field

The present invention relates to mobile communication technology, relate in particular to sending method, method of reseptance, system and the device of multiple-input and multiple-output.

Background technology

In mobile communication system, the universal mobile telecommunications system (UMTS) that will introduce high speed downlink packet access (HSDPA) technology and high speed uplink packet access (HSUPA) technology is referred to as high-speed packet and inserts (HSPA) system.

In the HSDPA technology, the high speed descending sharing channel (HS-DSCH) that switches between the user at interval with 2ms can be provided, in order to realize the HS-DSCH transmission, HSDPA has introduced three new physical channels, i.e. high-speed physical downlink shared channel (HS-PDSCH) (HS-PDSCH), High-Speed Shared Control Channel (HS-SCCH) and High-Speed Dedicated Physical Control Channel (HS-DPCCH).Wherein, HS-PDSCH is used to carry the high-speed downstream user data information; HS-SCCH is used to carry the required signaling of demodulation companion data channel HS-PDSCH; HS-DPCCH is used to carry the information that feedback is carried on the Data Receiving correctness on the HS-PDSCH, and feedback channel quality indication (CQI) information.Subscriber equipment (UE) knows whether have network side to send to oneself data on the corresponding HS-DPDCH by HS-SCCH, also from HS-SCCH obtain demodulation HS-PDSCH required comprise transformat and resource informations such as parallel code channel number and corresponding spreading code, transmission block size, modulation scheme; Network side is then known the Data Receiving result by HS-DPCCH, and the CQI of current channel etc.

In order further to strengthen the wireless performance of HSDPA, in HSDPA, introduced multiple-input and multiple-output (MIMO) technology, and two launching antenna array (D_TxAA) structures are adopted in proposition in HSDPA MIMO, i.e. 2 * 2 precoding MIMOs, as shown in Figure 1, Fig. 1 is the structural representation of HSDPA MIMO transmission mode in the prior art.When network side is scheduling to stream transmission, after basic transmission block of HS-DSCH and HS-DSCH second transmission block are handled (comprising operations such as chnnel coding, rate-matched, modulation) and spectrum-spreading and scrambling process through transmission channel separately respectively, by precoding weight coefficient w ₁, w ₂, w ₃And w ₄Form two signal flows after the weighting, add pilot tone Common Pilot Channel 1 (CPICH then respectively ₁) and Common Pilot Channel 2 (CPICH ₂) after, launch through two different antennas.Wherein, the stream of the basic transmission block correspondence of HS-DSCH is called basic wave beam (primary beam), and the stream of the HS-DSCH second transmission block correspondence is called second wave beam (secondary beam).When network side is scheduling to single-stream transmission, have only the basic transmission block of HS-DSCH to transmit, and by coefficient w ₁And w ₂Form two signal flows after the weighting, add pilot tone CPICH equally ₁And CPICH ₂After two different antennas are launched.Wherein, the code weight w that prelists among Fig. 1 ₁, w ₂, w ₃And w ₄Value satisfy following relation:

$\left\{\begin{array}{c}{w}_3=w_1=\frac{1}{\sqrt{2}}\\ w_4=-w_2\\ w_2\∈\{\frac{1+j}{2},\frac{1-j}{2},\frac{-1+j}{2},\frac{-1-j}{2}\}\end{array}\right.,$ J is imaginary unit (1)

After introducing the MIMO technology, the composition and the function of HSDPA channel do not change, but HS-SCCH in the HSDPA channel and HS-DPCCH need carry how new control information supporting the MIMO transmission, so variation has taken place for control information and respective coding structure thereof that HS-SCCH and HS-DPCCH carry respectively.

Under the MIMO pattern, HS-DPCCH has carried the HARQ-ACK information that is respectively applied for two stream HARQ operation, and precoding control indication PCI information and corresponding C QI information.According to the pre-configured ratio of upper-layer protocol, UE reporting types A (Type A) and two kinds of CQI information of type B (Type B), when reporting types A, UE can select the CQI information of report stream transmission or single-stream transmission according to actual channel conditions, when reporting types B, regardless of actual channel conditions, UE is the CQI information of report flow transmission fixedly.Wherein, CQI information always obtains based on selected precoding vector or matrix, so CQI is corresponding with specific PCI.

Wherein, in HS-DPCCH, use two information bit (x _Pci.1, x _Pci.2) carry PCI information, during specific implementation, PCI information only need indicate w ₂Value get final product because as can be known according to formula (1), w ₁And w ₃Be fixed value, w ₄Be w ₂Negative, so in the prior art, (x _Pci.1, x _Pci.2) definition can be as shown in table 1:

Table 1

W in the above-mentioned table 1 ₂ ^PrefRecommend the w of use to network side for UE ₂Value.When stream transmission, to shape as $W=\left[\begin{array}{cc}{w}_1& w_3\\ w_2& {\mathrm{<figure-callout\; id="4"\; label="w"\; filenames="A20071000018700341.png"\; state="\{\{state\}\}">w</figure-callout>}}_4\end{array}\right]$ Pre-coding matrix, PCI information can be indicated following four kinds of pre-coding matrixes:

$W_1=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{1+j}{2}& \frac{-1-j}{2}\end{array}\right],$ $W_2=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{1-j}{2}& \frac{-1+j}{2}\end{array}\right],$ $W_3=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{-1+j}{2}& \frac{1-j}{2}\end{array}\right],$ ${\mathrm{<figure-callout\; id="4"\; label="W"\; filenames="A20071000018700341.png"\; state="\{\{state\}\}">W</figure-callout>}}_4=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{-1-j}{2}& \frac{1+j}{2}\end{array}\right]---\left(2\right)$

In HS-DPCCH, use 8 information bit cqi ₇, cqi ₆..., cqi ₀(cqi ₀Be lowest order, cqi ₇Be highest order) the CQI information of coming bearer types A, promptly can indicate 2 at most ⁸=256 kinds of CQI information, as shown in table 2, table 2 is the CQI information mapping relation table of the CQI report of one type of A of the prior art.

Table 2

In the above-mentioned table 2, CQI is that zero value is used to indicate situation about exceeding beyond this CQI table value, and N/A represents not have.In addition, indicate the CQI information of single-stream transmission in the table 2 with 32 CQI values, CQI information with remaining 223 CQI values indication stream transmission, and in 223 CQI values of the CQI information of indicating stream transmission, there are 19 CQI values to be used to indicate two identical situations of stream CQI, promptly the modulation system of two streams and transmission block the size identical situation, other 204 CQI values then are used to indicate two different situations of stream CQI, and the CQI of two streams that these 204 CQI values are indicated combination is symmetrical, promptly as shown in table 3 in twos:

Table 3

Can see, when the CQI value is c1, if the transmission block of the basic wave beam of recommending (Preferred primary beam) size and modulation system are respectively TBS1 and M1, the transmission block size and the modulation system of second wave beam of recommending (Preferredsecondary beam) are respectively TBS2 and M2, then necessarily there is a CQI combination of symmetry with it, when being the CQI value for c2, the transmission block size and the modulation system of the basic wave beam of recommending are respectively TBS2 and M2, and the transmission block size and the modulation system of second wave beam of recommendation are respectively TBS1 and M1.

Because network side is when the scheduling stream transmission, the basic transmission block and second transmission block of the HS-DSCH that network side is dispatched belong to same UE, and promptly above-mentioned MIMO is transmitted as the Single User MIMO transmission.Experiment showed, concerning the Single User MIMO transmission, when stream transmission,, adopt pre-coding matrix W power system capacity ₁And W ₄Be equivalent, adopt pre-coding matrix W ₂And W ₃Also be equivalent.Be W ₁, W ₂, W ₃And W ₄Four kinds of pre-coding matrixes are to have redundancy.And the CQI information during for stream transmission adopts W ₁The CQI of two corresponding streams is with employing W ₄The CQI of two corresponding streams compares, and just exchange has taken place the CQI of two streams, but corresponding CQI value is identical, and is same, for W ₂And W ₃, also have identical problem.In the prior art, in the PCI/CQI encoding scheme shown in table 1 and the table 2, do not consider the problem of above-mentioned pre-coding matrix redundancy, using the PCI information indication W of two bits ₁, W ₂, W ₃And W ₄Four kinds of pre-coding matrixes, and when adopting the CQI information of the CQI combination indication stream transmission of symmetry in twos exist PCI, coding redundancy that CQI information is right, have caused the waste of resource.

Summary of the invention

In view of this, a kind of sending, receiving method of multiple-input and multiple-output is provided in the embodiment of the invention on the one hand; Provide a kind of transmission system and device of multiple-input and multiple-output on the other hand, so that eliminate PCI, CQI information to the redundancy in the coding.

The sending method of the multiple-input and multiple-output that the embodiment of the invention provided comprises: remove and make precoding control indication PCI, channel quality indicator (CQI) information to there being redundant coded portion; PCI, CQI information recommendation is adopted to indication UE pre-coding matrix or the vector and the corresponding CQI information of coding redundancy is removed in utilization, and this PCI, CQI information are sent being carried on the High-Speed Dedicated Physical Control Channel HS-DPCCH.

The method of reseptance of the multiple-input and multiple-output that the embodiment of the invention provided, comprise: receive HS-DPCCH, the PCI that removes coding redundancy among the HS-DPCCH, CQI information to resolving, are obtained UE and recommended the pre-coding matrix or vector and the corresponding CQI information that adopt.

The transmission system of the multiple-input and multiple-output that the embodiment of the invention provided comprises: dispensing device and receiving system, wherein,

Dispensing device is used to utilize PCI, pre-coding matrix or vector and the corresponding CQI information of CQI information to indicating UE to recommend employing to network side of removing coding redundancy, and this PCI, CQI information are sent to receiving system to being carried on the HS-DPCCH;

Receiving system is used to receive the HS-DPCCH from dispensing device, and the PCI that removes coding redundancy among the HS-DPCCH, CQI information to resolving, are obtained UE and recommended the pre-coding matrix or vector and the corresponding CQI information that adopt.

The transmitting device of the multiple-input and multiple-output that the embodiment of the invention provided comprises: dispensing device and receiving system.

Wherein, dispensing device comprises: information indicating module and information sending module, wherein,

The information indicating module is used to utilize the PCI that removes coding redundancy, CQI information that indication UE is recommended the pre-coding matrix or vector and the corresponding CQI information that adopt, and with this PCI, CQI information to offering information sending module;

Information sending module, being used in the future, PCI, the CQI information of self information indicating module send being carried on the HS-DPCCH.

Receiving system comprises: information receiving module and information analysis module, wherein,

Information receiving module is used to receive HS-DPCCH, and the HS-DPCCH that is received is offered the information analysis module;

The information analysis module, the PCI, CQI information that are used for the HS-DPCCH that information receiving module provides is removed coding redundancy be to resolving, and obtains UE and recommend the pre-coding matrix and the corresponding CQI information thereof that adopt.

From such scheme as can be seen, make PCI, CQI information to there being redundant coded portion by removing in the embodiment of the invention, utilization is removed PCI, the CQI information of coding redundancy indication UE is recommended the pre-coding matrix of employing and the CQI information of correspondence thereof, and this PCI, CQI information are sent being carried on the HS-DPCCH.Thereby eliminated PCI, CQI information to the redundancy in the coding, saved system resource, allowed to provide more CQI information combination.

Description of drawings

Fig. 1 is the structural representation of HSDPA MIMO transmission mode in the prior art;

Fig. 2 is the flow chart of MIMO sending, receiving method in the embodiment of the invention one;

Fig. 3 is the structural representation of MIMO transmission system in the embodiment of the invention one;

Fig. 4 is the flow chart of MIMO sending, receiving method in the embodiment of the invention two;

Fig. 5 is the chnnel coding structural representation of HS-DPCCH under the MIMO pattern in the prior art;

Fig. 6 is the flow chart of MIMO sending, receiving method in the embodiment of the invention three;

Fig. 7 is the flow chart of MIMO sending, receiving method in the embodiment of the invention four.

Embodiment

The basic thought of the embodiment of the invention is: remove and make PCI, CQI information to there being redundant coded portion; PCI, CQI information that coding redundancy is removed in utilization are right, and indication UE recommends pre-coding matrix or the vector and the corresponding CQI information of employing, and this PCI, CQI information are sent being carried on the HS-DPCCH.

Wherein, PCI, the CQI information removed behind the coding redundancy are indicated more CQI combination to being used to, and the bit number that perhaps can reduce PCI or CQI information is to obtain the chnnel coding gain.

During specific implementation, remove and make PCI, CQI information comprise following two kinds at least the method that has redundant coded portion:

First method: remove and make CQI information have redundant CQI combination in the CQI information, promptly remove in the CQI information the basic wave beam CQI in the CQI of the symmetry combination in twos less than the combination of the second wave beam CQI; Perhaps, remove in the CQI information basic wave beam CQI in the CQI combination of symmetry in twos greater than the combination of the second wave beam CQI.

Further, can utilize the newly-increased CQI combination of CQI value indication of the described combination removed of indication, and newly-increased CQI combination can comprise: support higher order modulation schemes, make up as the CQI of 64QAM etc.; Perhaps, can reduce the bit number of CQI information to obtain the chnnel coding gain.

Second method: remove the code weight value that prelists that makes pre-coding matrix have redundancy in the PCI information.As removing two in four pre-coding matrixes, then PCI information can be represented with an information bit.

Further, can utilize another information bit of PCI information and CQI information to carry out combined coding, increase indicated number the CQI combination, then can increase new CQI combination, and newly-increased CQI combination can comprise: support higher order modulation schemes, as the CQI combination of 64QAM etc.; Perhaps, can reduce the bit number of PCI information to obtain the chnnel coding gain.

For making the purpose, technical solutions and advantages of the present invention clearer, MIMO sending, receiving method and the system that adopts above-mentioned two kinds of methods is described in detail below in conjunction with specific embodiment and accompanying drawing.

Because the embodiment of the invention, it mainly is the improvement that exists redundant situation to carry out during at stream transmission, therefore for single-stream transmission, PCI, CQI information are to can still encoding by the mapping relations in table 1 and the table 2, perhaps remove PCI, when thereby coding redundancy that CQI information is right can increase the CQI combination, CQI information when increasing the indication single-stream transmission on the basis of table 2 etc., other remains unchanged.Easy for describing, be primarily aimed at stream transmission among the present invention embodiment hereinafter and be described in detail.

Embodiment one: adopt first method.

In the present embodiment, it is constant to keep PCI information, still with two information bit indication W ₁, W ₂, W ₃And W ₄Four kinds of pre-coding matrixes make CQI information have redundant CQI combination and remove in the CQI information, i.e. the symmetry of CQI in CQI information combination, thus eliminate the coding redundancy of PCI, CQI information centering.Further, in the present embodiment, utilize the newly-increased CQI combination of CQI value indication of indicating the combinations thereof of removing.

Referring to Fig. 2, Fig. 2 is the flow chart of MIMO sending, receiving method in the embodiment of the invention one, and as shown in Figure 2, this flow process comprises the steps:

Step 201 is removed in the CQI information basic wave beam CQI in the CQI combination of symmetry in twos less than the combination of the second wave beam CQI.

In this step, for the CQI mapping relations table shown in the table 2,102 basic wave beam CQI during wherein 204 CQI of symmetry makes up are in twos removed less than the combination of the second wave beam CQI, during then 204 the CQI of symmetry makes up in twos, will remain the combination of 102 basic wave beam CQI greater than the second wave beam CQI.

Above-mentioned remaining 102 basic wave beam CQI are greater than the combination of the second wave beam CQI, equal the combination of the second wave beam CQI together with 19 basic wave beam CQI, and the CQI of 32 single-stream transmission combination and CQI value to be that totally 154 kinds of combinations of zero are common constitute in the present embodiment wave beam CQI substantially and make up more than or equal to the asymmetric CQI of the second wave beam CQI, promptly the basic wave beam order of modulation of Tui Jianing is equal to or greater than the order of modulation (QPSK of second wave beam of recommendation, the order of modulation of 16QAM and 64QAM increases successively), and/or the basic wave beam transmission block size of recommendation is equal to or greater than the transmission block size of second wave beam of recommendation.Thereby eliminated because symmetry makes up the redundancy of bringing, and can obtain CQI report precision same as the prior art.

Step 202 is utilized the newly-increased CQI combination of CQI value indication of indicating the combinations thereof of removing.

This step is a further effect in the present embodiment, promptly utilize the newly-increased CQI combination of 102 CQI value indications of above-mentioned 102 kinds of combinations that indication is removed in the step 201, then can improve the precision of CQI report greatly, effectively improve the performance of adaptive coding and modulating (AMC).And, when needing more CQI combination when introducing higher order modulation schemes such as 64QAM among the MIMO, the all or part of relevant CQI such as the high-order modulating of supporting 64QAM that is directly used in the step 201 in remaining 102 CQI values makes up, and need not to revise the channel coding schemes of existing HS-DPCCH.

Wherein, when utilizing the newly-increased CQI of CQI value indication that indicates the combinations thereof of removing to make up, for fear of redundancy, newly-increased CQI is combined as: according to the principle identical with step 201, be configured to asymmetrical CQI combination.

Step 203, UE utilizes PCI, the CQI information of removing coding redundancy that indication UE is recommended the pre-coding matrix of employing and the CQI information of correspondence thereof to network side, and this PCI, CQI information are sent being carried on the HS-DPCCH.

In the present embodiment, owing to the CQI symmetry combination of having removed in the CQI information, so PCI information is at indication W ₁, W ₂, W ₃And W ₄During four kinds of pre-coding matrixes, will can there be coding redundancy, so still use two information bit (x in this step _Pci.1, x _Pci.2) carry PCI information, and the CQI combination indication CQI information that obtains in 202 with step 201.

When UE selects pre-coding matrix W ₁The time, if corresponding basic wave beam CQI ₁More than or equal to the second wave beam CQI ₂, then UE indicates W in PCI information ₁, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Less than the second wave beam CQI ₂, then UE indicates W in PCI information ₄, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁, vice versa, and promptly UE selects pre-coding matrix W ₄The time, if corresponding basic wave beam CQI ₁More than or equal to the second wave beam CQI ₂, then UE indicates W in PCI information ₄, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Less than the second wave beam CQI ₂, then UE indicates W in PCI information ₁, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁

When UE selects pre-coding matrix W ₂The time, if corresponding basic wave beam CQI ₁More than or equal to the second wave beam CQI ₂, then UE indicates W in PCI information ₂, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Less than the second wave beam CQI ₂, then UE indicates W in PCI information ₃, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁, vice versa, and promptly UE selects pre-coding matrix W ₃The time, if corresponding basic wave beam CQI ₁More than or equal to the second wave beam CQI ₂, then UE indicates W in PCI information ₃, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Less than the second wave beam CQI ₂, then UE indicates W in PCI information ₂, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁

Afterwards, the HS-DPCCH after UE will encode sends to network side.

Step 204, network side receives the HS-DPCCH from UE, and to the PCI that wherein removes coding redundancy, CQI information to resolving, obtain UE and recommend the pre-coding matrix and the corresponding CQI information thereof that adopt.

In this step, after network side receives HS-DPCCH from UE, directly according to wherein PCI information indication, promptly according to the pre-coding matrix in mapping relations shown in the table 1 and the corresponding (2) thereof, directly, obtain the pre-coding matrix that UE recommends employing by the value of PCI information; And the CQI of basic wave beam correspondence and the CQI of the second wave beam correspondence are directly obtained in the CQI combination according to the CQI indication.

Wherein, in the step 201 of method flow shown in Figure 2, can remove in the CQI information basic wave beam CQI in the CQI combination of symmetry in twos greater than the combination of the second wave beam CQI, promptly for the CQI mapping relations table shown in the table 2,102 basic wave beam CQI during wherein 204 CQI of symmetry makes up are in twos removed greater than the combination of the second wave beam CQI, and the asymmetric CQI that then constitutes in the present embodiment is combined as: basic wave beam CQI is less than or equal to the asymmetric CQI combination of the second wave beam CQI.

Correspondingly, in the step 203, when UE utilizes the PCI remove coding redundancy, CQI information to indication pre-coding matrix and corresponding CQI information thereof, can for: when UE selects pre-coding matrix W ₁The time, if corresponding basic wave beam CQI ₁Be less than or equal to the second wave beam CQI ₂, then UE indicates W in PCI information ₁, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Greater than the second wave beam CQI ₂, then UE indicates W in PCI information ₄, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁, vice versa, and promptly UE selects pre-coding matrix W ₄The time, if corresponding basic wave beam CQI ₁Be less than or equal to the second wave beam CQI ₂, then UE indicates W in PCI information ₄, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Greater than the second wave beam CQI ₂, then UE indicates W in PCI information ₁, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁

When UE selects pre-coding matrix W ₂The time, if corresponding basic wave beam CQI ₁Be less than or equal to the second wave beam CQI ₂, then UE indicates W in PCI information ₂, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Greater than the second wave beam CQI ₂, then UE indicates W in PCI information ₃, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁, vice versa, and promptly UE selects pre-coding matrix W ₃The time, if corresponding basic wave beam CQI ₁Be less than or equal to the second wave beam CQI ₂, then UE indicates W in PCI information ₃, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Greater than the second wave beam CQI ₂, then UE indicates W in PCI information ₂, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁

Need to prove, above-mentioned size about CQI compares, be a certain wave beam CQI less than/or equal/or greater than the CQI of another wave beam, the order of modulation that is meant this wave beam less than/or equal/or greater than the order of modulation (order of modulation of QPSK, 16QAM and 64QAM increases successively) of described another wave beam, and/or, the transmission block size of this wave beam less than/or equal/or greater than the transmission block size of described another wave beam.

More than the MIMO sending, receiving method in the present embodiment is described in detail, below the MIMO transmission system in the present embodiment is described in detail.

Referring to Fig. 3, Fig. 3 is the structural representation of MIMO transmission system in the embodiment of the invention one.As shown in Figure 3, this system comprises: dispensing device and receiving system.Wherein, dispensing device can be arranged among the UE, and receiving system can be arranged in the network side.

Wherein, dispensing device is used to utilize PCI, the CQI information of removing coding redundancy that indication UE is recommended the pre-coding matrix of employing and the CQI information of correspondence thereof to network side, and this PCI, CQI information are sent to receiving system to being carried on the HS-DPCCH.

Receiving system is used to receive the HS-DPCCH from dispensing device, and the PCI that removes coding redundancy among the HS-DPCCH, CQI information to resolving, are obtained UE and recommended the pre-coding matrix or vector and the corresponding CQI information that adopt.

During specific implementation, dispensing device can specifically comprise: information indicating module and information sending module.

Wherein, the information indicating module is used to utilize the PCI that removes coding redundancy, CQI information that indication UE is recommended the pre-coding matrix or vector and the corresponding CQI information that adopt to network side, and with this PCI, CQI information to offering to information sending module.

Information sending module, being used in the future, PCI, the CQI information of self information indicating module send being carried on the HS-DPCCH.

Receiving system can specifically comprise: information receiving module and information analysis module.

Wherein, information receiving module is used to receive HS-DPCCH, and the HS-DPCCH that is received is offered the information analysis module.

The information analysis module, the PCI, CQI information that are used for the HS-DPCCH that information receiving module provides is removed coding redundancy be to resolving, and obtains UE and recommend the pre-coding matrix and the corresponding CQI information thereof that adopt.

In the present embodiment, the information indicating module of dispensing device can specifically comprise: PCI information indicating module and CQI information indicating module.

Wherein, PCI information indicating module is used for still utilizing pre-coding matrix or the vector of the PCI information indication UE of two bits to the network side recommendation, and the PCI information that will contain indication information offers information sending module.

CQI information indicating module is used to utilize that the CQI indication UE that eliminates after the symmetrical redundancy recommends to network side and pre-coding matrix or the corresponding CQI information of vector, and the CQI information that will contain indication information offers information sending module.

Wherein, CQI information indicating module, the CQI indication UE after utilize eliminating symmetrical redundancy by HS-DPCCH is when CQI information that network side is recommended, and CQI is the CQI that has increased new CQI combination.

Embodiment two: adopt first method.

In the present embodiment, it is constant to keep PCI information, still with two information bit indication W ₁, W ₂, W ₃And W ₄Four kinds of pre-coding matrixes make CQI information have redundant CQI combination and remove in the CQI information, i.e. the symmetry of CQI in CQI information combination, thus eliminate the coding redundancy of PCI, CQI information centering.Further, in the present embodiment, the bit number that can reduce CQI information is to obtain the chnnel coding gain.

Referring to Fig. 4, Fig. 4 is the flow chart of MIMO sending, receiving method in the embodiment of the invention one, and as shown in Figure 4, this flow process comprises the steps:

Step 401 is removed in the CQI information basic wave beam CQI in the CQI combination of symmetry in twos less than the combination of the second wave beam CQI, perhaps removes in the CQI information the basic wave beam CQI in the CQI of the symmetry combination in twos greater than the combination of the second wave beam CQI.

In this step, the specific implementation process can be consistent with the description of method flow described in the embodiment one.

Step 402 reduces the bit number of CQI information, in having reduced the CQI information of bit number, according to asymmetrical principle, the CQI combination is set.

In the prior art, the HARQ-ACK information and the PCI/CQI information of HS-DPCCH carrying are to carry out chnnel coding respectively under the MIMO pattern, and are mapped in two time slots of first time slot and back (HS-DPCCH comprises 3 time slots) of HS-DPCCH subframe respectively.As shown in Figure 5, the CQI of type A report comprises PCI and CQI totally 10 bit a ₀, a ₁..., a ₉, through forming 20 bits after (20, a 10) block code, be mapped in two time slots in back of HS-DPCCH subframe at last, wherein, the code word of (20,10) block code is the linear combination of 10 basic sequences shown in the table 4, promptly exports code word bits b _i(i=0 ... 19) be:

$b_i=\underset{n=0}{\overset{9}{\mathrm{\&Sigma;}}}(a_n\&times;M_{i,n})\mathrm{mod}2,$ Wherein mod is a complementation symbol (3)

i	M i，0	M i，1	M i，2	M i，3	M i，4	M i，5	M i，6	M i，7	M i，8	M i，9
											0	[1]	[0]	[0]	[0]	[0]	[0]	[0]	[0]	[0]	[0]
1	[0]	[1]	[0]	[0]	[0]	[0]	[0]	[0]	[0]	[0]
											2	[0]	[0]	[1]	[0]	[0]	[0]	[0]	[0]	[0]	[0]
3	[0]	[0]	[0]	[1]	[0]	[0]	[0]	[0]	[0]	[0]
											4	[0]	[0]	[0]	[0]	[1]	[0]	[0]	[0]	[0]	[0]
5	[0]	[0]	[0]	[0]	[0]	[1]	[0]	[0]	[0]	[0]
											6	[0]	[0]	[0]	[0]	[0]	[0]	[1]	[0]	[0]	[0]
7	[0]	[0]	[0]	[0]	[0]	[0]	[0]	[1]	[0]	[0]
											8	[0]	[0]	[0]	[0]	[0]	[0]	[0]	[0]	[1]	[0]
9	[0]	[0]	[0]	[0]	[0]	[0]	[0]	[0]	[0]	[1]
											10	[1]	[0]	[0]	[0]	[1]	[0]	[1]	[1]	[1]	[1]
11	[1]	[1]	[0]	[0]	[0]	[1]	[0]	[1]	[1]	[1]
											12	[0]	[1]	[1]	[0]	[0]	[0]	[1]	[0]	[1]	[1]
13	[1]	[0]	[1]	[1]	[0]	[0]	[0]	[1]	[0]	[1]
											14	[1]	[1]	[0]	[1]	[1]	[0]	[0]	[0]	[1]	[0]
15	[1]	[1]	[1]	[0]	[1]	[1]	[0]	[0]	[0]	[1]
											16	[1]	[1]	[1]	[1]	[0]	[1]	[1]	[0]	[0]	[0]
17	[0]	[1]	[1]	[1]	[1]	[0]	[1]	[1]	[0]	[0]
											18	[1]	[0]	[1]	[1]	[1]	[1]	[0]	[1]	[1]	[0]
19	[0]	[1]	[0]	[1]	[1]	[1]	[1]	[0]	[1]	[1]

Table 4

Because removed the redundancy in the PCI/CQI information in the step 201, therefore, the bit number of CQI information of the prior art can reduce 1 bit, still can satisfy the required CQI report combination requirement of CQI report of type A.After the CQI information bit reduces 1 bit, then use 7 information bits to come the CQI information of bearer types A, promptly can indicate 2 at most ⁷=128 kinds of CQI information, for fear of redundancy, these 128 kinds of combinations are provided with according to asymmetrical principle.For example, be that zero value is used to indicate this CQI table value situation in addition that exceeds still with CQI, CQI information with 32 CQI value indication single-stream transmission, CQI information with remaining 95 CQI values indication stream transmission, if use 19 CQI values wherein to be used to indicate two identical situations of stream CQI, promptly the modulation system of two streams and transmission block the size identical situation, then can use remaining 76 CQI values to indicate two different situations of stream CQI, and the CQI combination of these 76 two stream CQI different situations correspondences, can be configured to asymmetrical CQI combination according to the principle identical with step 201.

Except above-mentioned example, can also be according to actual needs, above-mentioned 128 kinds of CQI combination is set to other situation.

This step is a further effect in the present embodiment, promptly utilizes removal redundant in the PCI/CQI information, further reduces the bit number of CQI information, and utilizes the CQI combination after redundancy is removed in CQI information indication after bit number reduces.Like this, the CQI of type A report comprises PCI and CQI totally 9 bit a ₀, a ₁..., a ₈, then, be mapped in two time slots in back of HS-DPCCH subframe at last through forming 20 bits after (20, a 9) block code, wherein, the code word of (20,9) block code is the linear combination of preceding 9 basic sequences shown in the table 4, promptly exports code word bits b _i(i=0 ... 19) be:

$b_i=\underset{n=0}{\overset{8}{\mathrm{\&Sigma;}}}(a_n\&times;M_{i,n})\mathrm{mod}2,$ Wherein mod is a complementation symbol (4)

Owing to reduced information bit, under same coding output bit length, can obtain more chnnel coding gain, thereby allow to reduce the transmitting power of HS-DPCCH, improve power system capacity.

Step 403 to step 404 is described consistent with step 203 to the step 204 among the embodiment one.

Need to prove, above-mentioned size about CQI compares, be a certain wave beam CQI less than/or equal/or greater than the CQI of another wave beam, the order of modulation that is meant this wave beam less than/or equal/or greater than the order of modulation (order of modulation of QPSK, 16QAM and 64QAM increases successively) of described another wave beam, and/or, the transmission block size of this wave beam less than/or equal/or greater than the transmission block size of described another wave beam.

More than the MIMO sending, receiving method in the present embodiment is described in detail, below the MIMO transmission system in the present embodiment is described in detail.

MIMO transmission system in the present embodiment is identical with the composition and the annexation of system shown in Figure 3, and function is also similar.Difference is: the CQI information indicating module in the present embodiment, the CQI indication UE after utilize eliminating symmetrical redundancy by HS-DPCCH are when CQI information that network side is recommended, and CQI is for reducing the CQI behind the bit.

Embodiment three: adopt second method.

In the present embodiment, keep the CQI combination symmetrical distribution in the CQI information, remove the code weight value indication that prelists that makes pre-coding matrix have redundancy in the PCI information, thereby eliminate the coding redundancy of PCI, CQI information centering.Further, can reduce the bit number of PCI information.

Referring to Fig. 6, Fig. 6 is the MIMO sending, receiving method flow chart in the embodiment of the invention two.As shown in Figure 6, this flow process comprises the steps:

Step 601 is removed the code weight value that prelists that makes pre-coding matrix have redundancy in the PCI information.

Because when UE reports the PCI information of stream transmission, W is adopted in indication ₁Adopt W with indication ₄Redundant each other, W is adopted in indication ₂Adopt W with indication ₃Also redundant each other, so in the present embodiment, indicating by the PCI information-bearing $W=\left[\begin{array}{cc}{w}_1& w_3\\ w_2& w_4\end{array}\right]$ W ₂Value the time, can not carry and make pre-coding matrix W have the redundant code weight w that prelists ₂Value.

Wherein, w ₂Value is

The time, corresponding indication W ₁w ₂Value is

The time, corresponding indication W ₂w ₂Value is

The time, corresponding indication W ₃w ₂Value is

The time, corresponding indication W ₄In order to eliminate redundant indication, can remove

With One of the two, remove With

One of the two, keep the efficient precoding value at last and be

With

One of the two,

With

One of the two.

Describe for convenient, in this step, suppose that the efficient precoding power value of removing redundant reservation afterwards is:

With

Wherein

Corresponding W ₁, Corresponding W ₂

Step 602, UE utilizes PCI, the CQI information of removing coding redundancy that indication UE is recommended the pre-coding matrix of employing and the CQI information of correspondence thereof to network side, and this PCI, CQI information are sent being carried on the HS-DPCCH.

In the present embodiment,, when therefore the CQI of symmetrical distribution makes up the CQI information of indication stream transmission in using CQI information, will can there be coding redundancy because the redundant matrix that has removed in the PCI information is indicated, so can be still with former 8 information bit cqi in this step ₇, cqi ₆..., cqi ₀Indicate 2 ⁸=256 kinds of CQI information, and indicate pre-coding matrix with the code weight value that prelists in the PCI information that obtains in the step 401.Wherein, PCI information can use an information bit indication in original two information bits of PCI information to remove redundant two pre-coding matrixes afterwards, another information bit can remove, also can be used as reservation bit, perhaps, PCI information still uses original two information bits indication of PCI information to remove two pre-coding matrixes after redundant, remove two pre-coding matrixes after remaining PCI value can be used as the reservation value.

For two code weight values that prelist that keep in the step 601

With

In this step, when encoding in HS-DPCCH, PCI information can only be used to indicate W ₁And W ₂Two pre-coding matrixes.In the CQI information of corresponding two pre-coding matrixes can be basic wave beam CQI more than or equal to the second wave beam CQI, also can be that basic wave beam CQI is less than the second wave beam CQI.

In order to obtain the chnnel coding gain, in this step, the situation of using an information bit indication in original two information bits of PCI information to remove redundant two pre-coding matrixes afterwards with PCI information is example, remove a bit in original two bits of PCI information, at this moment, when encoding, can be according to consistent with the description in the method step 402 shown in the embodiment two, after removing a bit of PCI information, the CQI of type A report comprises PCI and CQI totally 9 bit a equally ₀, a ₁..., a ₈, then, be mapped in two time slots in back of HS-DPCCH subframe at last through forming 20 bits after (20, a 9) block code, wherein, the code word of (20,9) block code is the linear combination of preceding 9 basic sequences shown in the table 4, promptly exports code word bits b _i(i=0 ... 19) calculate as the formula (4).

Owing to reduced information bit, under same coding output bit length, can obtain more chnnel coding gain, thereby allow to reduce the transmitting power of HS-DPCCH, improve power system capacity.

Step 603, network side receive the HS-DPCCH from UE, and the PCI that removes coding redundancy among the HS-DPCCH, CQI information to resolving, are obtained UE and recommended the pre-coding matrix and the corresponding CQI information thereof that adopt.

Because UE is when reporting PCI information to network side, the CQI that reports simultaneously is corresponding with PCI information, because the indication of PCI information recommends to adopt pre-coding matrix W ₁The time, the CQI value of corresponding two streams recommends to adopt pre-coding matrix W with the indication of PCI information ₄The time, the CQI value of corresponding two streams is compared, and just the CQI value of two streams has taken place to exchange, therefore for only keeping in the step 401

With

Among the two

The time, the indication of PCI information recommends to adopt pre-coding matrix W ₁, but network side can determine that the actual pre-coding matrix that UE recommends to adopt by the indication of PCI information is W according to the relation of the CQI of two streams ₁Or W ₄

When parsing the indication of PCI information, network side recommends to adopt W ₁The time, if the CQI of the basic wave beam of recommending in the CQI information of resolving is more than or equal to the CQI of second wave beam of recommending, when then network side carries out the double fluid scheduling, if the pre-coding matrix that adopts UE to recommend then adopts W ₁Carry out precoding, and the corresponding basic transmission block of the basic wave beam that will recommend, with corresponding second transmission block of recommending of second wave beam; If the CQI of the basic wave beam of recommending in the CQI information of resolving is less than the CQI of second wave beam of recommending, when then network side carries out the double fluid scheduling, if the pre-coding matrix that adopts UE to recommend then adopts W ₄Carry out precoding, and the corresponding basic transmission block of second wave beam that will recommend, with corresponding second transmission block of recommending of basic wave beam.

When parsing the indication of PCI information, network side recommends to adopt W ₂The time, if the CQI of the basic wave beam of recommending in the CQI information of resolving is more than or equal to the CQI of second wave beam of recommending, when then network side carries out the double fluid scheduling, if the pre-coding matrix that adopts UE to recommend then adopts W ₂Carry out precoding, and the corresponding basic transmission block of the basic wave beam that will recommend, with corresponding second transmission block of recommending of second wave beam; If the CQI of the basic wave beam of recommending in the CQI information of resolving is less than the CQI of second wave beam of recommending, when then network side carries out the double fluid scheduling, if the pre-coding matrix that adopts UE to recommend then adopts W ₃Carry out precoding, and the corresponding basic transmission block of second wave beam that will recommend, with corresponding second transmission block of recommending of basic wave beam.

Therefore, network side is being resolved to PCI information indication W ₁, can be according to the relation of the CQI value of two streams, obtaining UE is W by the pre-coding matrix that PCI information indication actual recommendation adopts ₁Or W ₄If the CQI of two wave beams recommending is the CQI of the CQI of basic wave beam more than or equal to second wave beam, determine that then the pre-coding matrix that the UE actual recommendation adopts is W ₁, and the CQI of corresponding basic transmission block is the CQI of the basic wave beam recommended, the CQI of the piece of corresponding second transmission is the CQI of second wave beam recommended; If the CQI of two wave beams recommending is the CQI of the CQI of basic wave beam less than second wave beam, determine that then the pre-coding matrix that the UE actual recommendation adopts is W ₄, and the CQI of corresponding basic transmission block is the CQI of second wave beam recommended, the CQI of the piece of corresponding second transmission is the CQI of the basic wave beam recommended.

In like manner, network side is being resolved to PCI information indication W ₂, can be according to the relation of the CQI value of two streams, obtaining UE is W by the pre-coding matrix that PCI information indication actual recommendation adopts ₂Or W ₃If the CQI of two wave beams recommending is the CQI of the CQI of basic wave beam more than or equal to second wave beam, determine that then the pre-coding matrix that the UE actual recommendation adopts is W ₂, and the CQI of corresponding basic transmission block is the CQI of the basic wave beam recommended, the CQI of the piece of corresponding second transmission is the CQI of second wave beam recommended; If the CQI of two wave beams recommending is the CQI of the CQI of basic wave beam less than second wave beam, determine that then the pre-coding matrix that the UE actual recommendation adopts is W ₃, and the CQI of corresponding basic transmission block is the CQI of second wave beam recommended, the CQI of the piece of corresponding second transmission is the CQI of the basic wave beam recommended.

Need to prove, above-mentioned size about CQI compares, be a certain wave beam CQI less than/or equal/or greater than the CQI of another wave beam, the order of modulation that is meant this wave beam less than/or equal/or greater than the order of modulation (order of modulation of QPSK, 16QAM and 64QAM increases successively) of described another wave beam, and/or, the transmission block size of this wave beam less than/or equal/or greater than the transmission block size of described another wave beam.

More than the MIMO sending, receiving method in the present embodiment is described in detail, below the MIMO transmission system in the present embodiment is described in detail.

MIMO transmission system in the present embodiment is identical with the composition and the annexation of system shown in Figure 3, and function is also similar.Difference is: in the present embodiment, the function of PCI information indicating module in the information indicating module and CQI information indicating module and the description among the embodiment one are distinguished to some extent.Be in the present embodiment:

PCI information indicating module is used for when stream transmission, utilizes the pre-coding matrix of the PCI information indication UE of a bit to the network side recommendation; During single-stream transmission, utilize the precoding vector of the PCI information indication UE of two bits to the network side recommendation, the PCI information that will contain indication information offers information sending module.

CQI information indicating module is used to utilize that the CQI indication UE of existence symmetry combination in twos recommends to network side and pre-coding matrix or the corresponding CQI information of vector, and the CQI information that will contain indication information offers information sending module.

Embodiment four: adopt second method.

In the present embodiment, keep the CQI combination symmetrical distribution in the CQI information, remove the code weight value indication that prelists that makes pre-coding matrix have redundancy in the PCI information, thereby eliminate the coding redundancy of PCI, CQI information centering.And further, increase the number of combinations of CQI information.

Referring to Fig. 7, Fig. 7 is the MIMO sending, receiving method flow chart in the embodiment of the invention two.As shown in Figure 7, this flow process comprises the steps:

Step 701 is removed the code weight value that prelists that makes pre-coding matrix have redundancy in the PCI information.

For ease of difference relatively, in this step, adopt with step 601 shown in Figure 6 in consistent description.

Step 702, UE uses an information bit indication in original two information bits of PCI information to remove redundant pre-coding matrix afterwards, use another information bit and CQI in original two information bits of PCI information to carry out combined coding, CQI combination among the expansion CQI, CQI indication CQI information after utilizing the CQI combination to expand, PCI, the CQI information that will contain indication information send being carried on the HS-DPCCH.

In this step, for two code weight values that prelist that keep in the step 701, can use an information bit in original two information bits of PCI information to indicate, and by using another information bit and CQI in original two information bits of PCI information to carry out combined coding, can increase the number of combinations of CQI information indication, use the CQI information of the CQI designation data transmission that has increased number of combinations.

As shown in Table 2, in the prior art, the CQI information of type A takies 8 bits altogether, and can indicate 2 at most ⁸=256 kinds of CQI information have wherein used 32 kinds of combinations to indicate the CQI information of single-stream transmission, have used 223 kinds of combinations to indicate the CQI information of stream transmission.As seen, there are 5 bits to represent the CQI information of this stream during the CQI information of type A indication single-stream transmission, and during the indication stream transmission, on average only represent the CQI information of a stream less than 4 bits.

As seen, in the prior art, less when the CQI of two streams that the CQI of 8 bits can represent during stream transmission report is made up than single-stream transmission.Therefore during stream transmission, can utilize an information bit in the PCI information, carry out the number of combinations that combined coding increases CQI information with the information bit of CQI.

In this step, with original two the bit (x of PCI information _Pci.1, x _Pci.2) in a bit (as x _Pci.1) and 8 bit combined codings of CQI information bit, promptly use 9 bits to represent, then can indicate 2 at most ⁹=512 kinds of combinations.

Owing to during single-stream transmission, still use two bit (x of PCI information _Pci.1, x _Pci.2) indicate shape as $W_x=\left[\begin{array}{c}{w}_1\\ w_2\end{array}\right]$ Four precoding vectors, therefore, when in HS-DPCCH, encoding, a PCI information when utilize increasing the CQI information of a part of CQI combination indication single-stream transmission among the CQI after the CQI combination and single-stream transmission; Utilize the CQI information of another part combination indication stream transmission.If the CQI number of combinations of report flow transmission is K (typically K 〉=32), then 2K kind combination wherein will be used to refer to CQI information and PCI information of single-stream transmission, it is identical wherein to make up 1～K CQI information indicated with making up K～2K, is 1 but one of a PCI information of indication is 0, one.Using Q (Q=1 or 2) in addition is that zero value is indicated the situation beyond this CQI table value that exceeds, and be that zero value indicates with 2 wherein is in order to indicate a PCI information simultaneously.

Like this, the combination of remaining 512-2K-Q kind can be used to indicate the CQI information of stream transmission.In the combination of the remaining CQI information that can be used for indicating stream transmission, be S if need the number of combinations of two identical situations of wave beam CQI of indication, then remain 512-2K-Q-S kind combination two situations that wave beam CQI is different when can be used to indicate stream transmission.As previously mentioned, the CQI of two streams that these CQI values are indicated combination is symmetrical in twos, therefore, has been equivalent to 256-K-(Q+S)/2 kind of asymmetrical CQI combination.For example, if similar with the CQI information mapping table of the CQI of table 2 shown type A report, i.e. K=32, Q=1, the CQI when then having 447 kinds of combinations to can be used to indicate stream transmission is greatly more than 223 kinds of combinations in the table 2.

Similar with embodiment one, the CQI value that increases can be used for indicating other CQI combination, thereby improve the precision of CQI report greatly, effectively improve the performance of AMC, and when needing more CQI to make up when introducing the contour contrast system of 64QAM among the MIMO, utilize the CQI value that increases just can directly be supported in high-order modulating such as introducing 64QAM among the existing MIMO, and need not to revise the channel coding schemes of the existing existing HS-DPCCH of MIMO.

As shown in table 5, table 5 is the CQI information mapping relation table of the CQI report of one type of A in the present embodiment.In the table 5 with K=32, the x during with stream transmission in the PCI information _Pci.2Indication With

Situation be example:

Table 5

In the above-mentioned table 5, with x _Pci.1And cqi ₀, cqi ₁..., cqi ₇Be combined into totally 9 information bits, big-endian is expressed as " cqi ₇, cqi ₆..., cqi ₀, x _Pci.1", (set C1 and C2) is used to indicate CQI information and 1 PCI information, i.e. x of single-stream transmission with 64 specific values _Pci.1, wherein, it is 0 situation that set C1 can be used for indicating 1 PCI information value, it is 1 situation that set C2 can be used for indicating 1 PCI information value, perhaps opposite.And 447 specific values (set C3 and C4) are used to indicate the CQI information of stream transmission.

Afterwards, PCI, the CQI information that will contain indication information sends to network side to being carried on the HS-DPCCH.

Step 703, network side receives the HS-DPCCH from UE, and to the PCI that wherein removes coding redundancy, CQI information to resolving, obtain UE and recommend the pre-coding matrix and the corresponding CQI information thereof that adopt.

In this step, network side parses x after receiving HS-DPCCH from UE _Pci.1And cqi ₀, cqi ₁..., cqi ₇The encoded radio of combination promptly is judged as the CQI information of stream transmission in set C3 and C4 the time, and corresponding pre-coding matrix is by x _Pci.2Indication for example, is worked as x _Pci.2Be to represent that the pre-coding matrix of correspondence was W at 0 o'clock ₁(or W ₄), work as x _Pci.2Be to represent that the pre-coding matrix of correspondence was W at 1 o'clock ₂(or W ₃), when parsing x _Pci.1And cqi ₀, cqi ₁..., cqi ₇The encoded radio of combination promptly is judged as the CQI information of single-stream transmission in set C1 and C2 the time, and different according to affiliated set C1 and C2, determines the value of 1 PCI information, and further determines the CQI information and the precoding vector of single-stream transmission according to table 5.

Wherein, the pre-coding matrix W when resolving stream transmission ₁, W ₂, W ₃, W ₄, and during corresponding C QI information, handle according to the description in the step 603 shown in Figure 6.

Need to prove, above-mentioned size about CQI compares, be a certain wave beam CQI less than/or equal/or greater than the CQI of another wave beam, the order of modulation that is meant this wave beam less than/or equal/or greater than the order of modulation (order of modulation of QPSK, 16QAM and 64QAM increases successively) of described another wave beam, and/or, the transmission block size of this wave beam less than/or equal/or greater than the transmission block size of described another wave beam.

More than the MIMO sending, receiving method in the present embodiment is described in detail, below the MIMO transmission system in the present embodiment is described in detail.

MIMO transmission system in the present embodiment is identical with the composition and the annexation of system shown in Figure 3, and function is also similar.Difference is: in the present embodiment, the function of PCI information indicating module in the information indicating module and CQI information indicating module and the description among the embodiment one are distinguished to some extent.Be in the present embodiment:

PCI information indicating module is used for when stream transmission, utilizes the pre-coding matrix of the PCI information indication UE of a bit to the network side recommendation; During single-stream transmission, utilize the precoding vector of the PCI information indication UE of two bits to the network side recommendation, the PCI information that will contain indication information offers information sending module.

CQI information indicating module, be used for utilizing bit of original two bits of PCI information and original bit of CQI to carry out combined coding, when single-stream transmission, the CQI information corresponding of utilizing a part of CQI combination indication UE in the combined coding to recommend with precoding vector to network side; During stream transmission, the CQI information corresponding of utilizing another part CQI combination indication UE in the combined coding to recommend with pre-coding matrix to network side, the CQI information that will contain indication information offers information sending module.

Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is preferred embodiment of the present invention; be not to be used to limit protection scope of the present invention; within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (20)

1. the sending method of a multiple-input and multiple-output is characterized in that, this method comprises:

Remove and make precoding control indication PCI, channel quality indicator (CQI) information there being redundant coded portion;

The PCI of coding redundancy, pre-coding matrix or vector and the corresponding CQI information that CQI information is recommended employing to the indication user equipment (UE) are removed in utilization, and this PCI, CQI information are sent being carried on the High-Speed Dedicated Physical Control Channel HS-DPCCH.

2. the method for claim 1 is characterized in that, described removing makes PCI, CQI information to there being redundant coded portion be: remove the CQI combination that makes CQI information have redundancy in the CQI information.

3. method as claimed in claim 2 is characterized in that, the described CQI that removes is combined as: the basic wave beam CQI in the CQI information in the CQI of the symmetry combination in twos is less than the combination of the second wave beam CQI;

PCI, CQI information that coding redundancy is removed in described utilization are specially indication pre-coding matrix and corresponding CQI information thereof:

Select pre-coding matrix W ₁The time, if corresponding basic wave beam CQI ₁More than or equal to the second wave beam CQI ₂, then in PCI information, indicate W ₁, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Less than the second wave beam CQI ₂, then in PCI information, indicate W ₄, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁

Select pre-coding matrix W ₄The time, if corresponding basic wave beam CQI ₁More than or equal to the second wave beam CQI ₂, then in PCI information, indicate W ₄, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Less than the second wave beam CQI ₂, then in PCI information, indicate W ₁, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁

Select pre-coding matrix W ₂The time, if corresponding basic wave beam CQI ₁More than or equal to the second wave beam CQI ₂, then in PCI information, indicate W ₂, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Less than the second wave beam CQI ₂, then in PCI information, indicate W ₃, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁

Select pre-coding matrix W ₃The time, if corresponding basic wave beam CQI ₁More than or equal to the second wave beam CQI ₂, then in PCI information, indicate W ₃, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Less than the second wave beam CQI ₂, then in PCI information, indicate W ₂, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁Wherein,

$W_1=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{1+j}{2}& \frac{-1-j}{2}\end{array}\right],$ $W_2=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{1-j}{2}& \frac{-1+j}{2}\end{array}\right],$ $W_3=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{-1+j}{2}& \frac{1-j}{2}\end{array}\right],$ $W_4=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{-1-j}{2}& \frac{1+j}{2}\end{array}\right],$

J is an imaginary unit.

4. method as claimed in claim 2 is characterized in that, the described CQI that removes is combined as: the basic wave beam CQI in the CQI information in the CQI of the symmetry combination in twos is greater than the combination of the second wave beam CQI;

PCI, CQI information that coding redundancy is removed in described utilization are specially indication pre-coding matrix and corresponding CQI information thereof:

Select pre-coding matrix W ₁The time, if corresponding basic wave beam CQI ₁Be less than or equal to the second wave beam CQI ₂, then in PCI information, indicate W ₁, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Greater than the second wave beam CQI ₂, then in PCI information, indicate W ₄, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁

Select pre-coding matrix W ₄The time, if corresponding basic wave beam CQI ₁Be less than or equal to the second wave beam CQI ₂, then in PCI information, indicate W ₄, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Greater than the second wave beam CQI ₂, then in PCI information, indicate W ₁, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁

Select pre-coding matrix W ₂The time, if corresponding basic wave beam CQI ₁Be less than or equal to the second wave beam CQI ₂, then in PCI information, indicate W ₂, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Greater than the second wave beam CQI ₂, then in PCI information, indicate W ₃, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁

Select pre-coding matrix W ₃The time, if corresponding basic wave beam CQI ₁Be less than or equal to the second wave beam CQI ₂, then in PCI information, indicate W ₃, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₁, the CQI of corresponding second wave beam is CQI ₂If corresponding basic wave beam CQI ₁Greater than the second wave beam CQI ₂, then in PCI information, indicate W ₂, the CQI of the corresponding basic wave beam of indication is CQI in CQI information ₂, the CQI of corresponding second wave beam is CQI ₁Wherein,

$W_1=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{1+j}{2}& \frac{-1-j}{2}\end{array}\right],$ $W_2=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{1-j}{2}& \frac{-1+j}{2}\end{array}\right],$ $W_3=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{-1+j}{2}& \frac{1-j}{2}\end{array}\right],$ $W_4=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{-1-j}{2}& \frac{1+j}{2}\end{array}\right],$

J is an imaginary unit.

5. method as claimed in claim 2 is characterized in that, this method further comprises: utilize the newly-increased CQI combination of CQI value indication of indicating the described combination of removing.

6. method as claimed in claim 5 is characterized in that, described newly-increased CQI combination comprises: support the CQI combination of higher order modulation schemes.

7. method as claimed in claim 6 is characterized in that described high order modulation comprises: 64QAM.

8. method as claimed in claim 2 is characterized in that, this method further comprises: reduce the bit number of CQI information, utilize the CQI combination after redundancy is removed in CQI information indication after bit number reduces.

9. the method for claim 1 is characterized in that, described removing makes PCI, CQI information to there being redundant coded portion be: remove the code weight value that prelists that makes pre-coding matrix have redundancy in the PCI information.

10. method as claimed in claim 9 is characterized in that, PCI, CQI information that coding redundancy is removed in described utilization are specially indication pre-coding matrix and corresponding CQI information thereof:

Utilize in the PCI information pre-coding matrix after redundancy is removed in an information bit indication in original two bits, utilize in the PCI information another information bit and the CQI information in original two bits to carry out combined coding, CQI combination among the expansion CQI utilizes the CQI after the CQI combination is expanded to indicate CQI information.

11. method as claimed in claim 10, it is characterized in that, if need the CQI information of K kind combination indication single-stream transmission, CQI indication CQI information after the then described CQI of the utilization combination expansion is specially: utilize CQI information and the PCI information of the 2K kind combination indication single-stream transmission among the CQI after CQI makes up expansion, utilize the CQI information of the residue combination indication stream transmission among the CQI after the CQI combination is expanded.

12. as each described method in the claim 1 to 11, it is characterized in that, this method further comprises: receive HS-DPCCH, the PCI that removes coding redundancy among the HS-DPCCH, CQI information to resolving, are obtained UE and recommended the pre-coding matrix or vector and the corresponding CQI information that adopt.

13. the method for reseptance of a multiple-input and multiple-output, it is characterized in that, this method comprises: receive HS-DPCCH, the PCI that removes coding redundancy among the HS-DPCCH, CQI information to resolving, are obtained UE and recommended the pre-coding matrix or vector and the corresponding CQI information that adopt.

14. method of reseptance as claimed in claim 13 is characterized in that, pre-coding matrix and corresponding CQI information thereof that the described UE of obtaining recommends to adopt are specially:

If be resolved to PCI information is W ₁, CQI information is the CQI of the basic wave beam of recommendation ₁CQI more than or equal to second wave beam of recommending ₂, the pre-coding matrix that then obtains UE recommendation employing is W ₁, the CQI information of obtaining is: the corresponding CQI of basic transmission block ₁, the corresponding CQI of second transmission block ₂

If be resolved to PCI information is W ₁, CQI information is the CQI of the basic wave beam of recommendation ₁CQI less than second wave beam of recommending ₂, the pre-coding matrix that then obtains UE recommendation employing is W ₄, the CQI information of obtaining is: the corresponding CQI of basic transmission block ₂, the corresponding CQI of second transmission block ₁

If be resolved to PCI information is W ₂, CQI information is the CQI of the basic wave beam of recommendation ₁CQI more than or equal to second wave beam of recommending ₂, the pre-coding matrix that then obtains UE recommendation employing is W ₂, the CQI information of obtaining is: the corresponding CQI of basic transmission block ₁, the corresponding CQI of second transmission block ₂

If be resolved to PCI information is W ₂, CQI information is the CQI of the basic wave beam of recommendation ₁CQI less than second wave beam of recommending ₂, the pre-coding matrix that then obtains UE recommendation employing is W ₃, the CQI information of obtaining is: the corresponding CQI of basic transmission block ₂, the corresponding CQI of second transmission block ₁Wherein,

$W_1=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{1+j}{2}& \frac{-1-j}{2}\end{array}\right],$ $W_2=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{1-j}{2}& \frac{-1+j}{2}\end{array}\right],$ $W_3=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{-1+j}{2}& \frac{1-j}{2}\end{array}\right],$ $W_4=\left[\begin{array}{cc}\frac{1}{\sqrt{2}}& \frac{1}{\sqrt{2}}\\ \frac{-1-j}{2}& \frac{1+j}{2}\end{array}\right],$

J is an imaginary unit.

15. the transmission system of a multiple-input and multiple-output is characterized in that, this system comprises: dispensing device and receiving system, wherein,

Dispensing device is used to utilize PCI, pre-coding matrix or vector and the corresponding CQI information of CQI information to indicating UE to recommend employing to network side of removing coding redundancy, and this PCI, CQI information are sent to receiving system to being carried on the HS-DPCCH;

Receiving system is used to receive the HS-DPCCH from dispensing device, and the PCI that removes coding redundancy among the HS-DPCCH, CQI information to resolving, are obtained UE and recommended the pre-coding matrix or vector and the corresponding CQI information that adopt.

16. a dispensing device is characterized in that, this device comprises: information indicating module and information sending module, wherein,

The information indicating module is used to utilize the PCI that removes coding redundancy, CQI information that indication UE is recommended the pre-coding matrix or vector and the corresponding CQI information that adopt, and with this PCI, CQI information to offering information sending module;

Information sending module, being used in the future, PCI, the CQI information of self information indicating module send being carried on the HS-DPCCH.

17. device as claimed in claim 16 is characterized in that, described information indicating module comprises: PCI information indicating module and CQI information indicating module, wherein,

PCI information indicating module, the pre-coding matrix or the vector that are used to utilize the PCI information indication UE of two bits to recommend, the PCI information that will contain indication information offers information sending module;

CQI information indicating module is used to utilize that the CQI indication UE that eliminates after the symmetrical redundancy recommends and pre-coding matrix or the corresponding CQI information of vector, and the CQI information that will contain indication information offers information sending module.

18. device as claimed in claim 16 is characterized in that, described information indicating module comprises: PCI information indicating module and CQI information indicating module, wherein,

PCI information indicating module is used for when stream transmission, utilizes the pre-coding matrix of the PCI information indication UE recommendation of a bit; During single-stream transmission, utilize the precoding vector of the PCI information indication UE recommendation of two bits, the PCI information that will contain indication information offers information sending module;

CQI information indicating module is used to utilize that the CQI indication UE of the symmetrical in twos CQI combination of existence recommends and pre-coding matrix or the corresponding CQI information of vector, and the CQI information that will contain indication information offers information sending module.

19. device as claimed in claim 16 is characterized in that, described information indicating module comprises: PCI information indicating module and CQI information indicating module, wherein,

PCI information indicating module is used for when stream transmission, utilizes the pre-coding matrix of the PCI information indication UE recommendation of a bit; During single-stream transmission, utilize the precoding vector of the PCI information indication UE recommendation of two bits, the PCI information that will contain indication information offers information sending module;

CQI information indicating module, be used for utilizing bit of original two bits of PCI information and original bit of CQI to carry out combined coding, when single-stream transmission, the CQI information corresponding of utilizing a part of CQI combination indication UE in the combined coding to recommend with precoding vector; During stream transmission, the CQI information corresponding of utilizing another part CQI combination indication UE in the combined coding to recommend with pre-coding matrix, the CQI information that will contain indication information offers information sending module.

20. a receiving system is characterized in that, this device comprises: information receiving module and information analysis module, wherein,

Information receiving module is used to receive HS-DPCCH, and the HS-DPCCH that is received is offered the information analysis module;

The information analysis module, the PCI, CQI information that are used for the HS-DPCCH that information receiving module provides is removed coding redundancy be to resolving, and obtains UE and recommend the pre-coding matrix and the corresponding CQI information thereof that adopt.

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