CN101932109A - Method and device for transmitting precoding control indication (PCI) - Google Patents
Method and device for transmitting precoding control indication (PCI) Download PDFInfo
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- CN101932109A CN101932109A CN200910087087XA CN200910087087A CN101932109A CN 101932109 A CN101932109 A CN 101932109A CN 200910087087X A CN200910087087X A CN 200910087087XA CN 200910087087 A CN200910087087 A CN 200910087087A CN 101932109 A CN101932109 A CN 101932109A
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Abstract
The embodiment of the invention relates to a method and a device for transmitting precoding control indication (PCI) in the field of communication. The method comprises the following steps of: performing joint coding on the PCI of a first carrier and a channel quality indicator (CQI) of a second carrier, wherein the first carrier is a carrier which is provided with multiple input multiple output (MIMO) and the second carrier is a carrier which is not provided with the MIMO; and transmitting a joint code of the PCI of the first carrier and the CQI of the second carrier on a sub-frame of a high speed dedicated physical control channel (HS-DPCCH). In the embodiment of the invention, the PCI of the carrier provided with the MIMO is fed back more quickly in a mode that the MIMO is combined with a plurality of carriers and under the condition that partial carriers are provided with the MIMO, so that a node B can adjust a weight factor of data stream according to the fading change of a channel in time and the throughput of a system is further increased.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of MIMO (Multiple Input Multiple Output, multiple-input and multiple-output) combines with multicarrier, and PCI under the part carrier wave configuration MIMO pattern (Precoding Control Indication, precoding control indication) feedback method and device.
Background technology
Develop rapidly along with the communication technology, WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA)) as one of mainstream technology of 3-G (Generation Three mobile communication system), extensive studies and application have been obtained in the world, the direction evolution that combining with MIMO of WCDMA system descending at present to multicarrier or multicarrier.In order further to improve the downlink transfer speed of WCDMA system, reduce data transmission delay, may introduce more multicarrier in following version, such as 3 or 4 carrier waves, also can partly or entirely dispose MIMO on the carrier wave simultaneously.
DC (Dual cell, double small district) makes descending peak rate further improve with combining of MIMO, has strengthened user experience.Its feedback channel HS-DPCCH (High Speed Dedicated Physical Control Channel (uplink) for HS-DSCH, High-Speed Dedicated Physical Control Channel) design as shown in Figure 1, ACK/NACK (Acknowledgement on two carrier waves, affirmation/Negative Acknowledgement, non-affirmation) signal carries out combined coding, PCI on each carrier wave (Precoding Control Indication, precoding control is indicated) and CQI (Channel Quality Indicator, the channel quality indication) carry out combined coding, so the PCI/CQI of the combined coding of latter two carrier wave alternately sends.In order to increase the flexibility of system configuration, can only be configured to MIMO to one in the DC sub-district, promptly allow to exist the cell configuration of MIMO+SC (Single cell, single sub-district).For the user who supports DC+MIMO, after entering the network of MIMO+SC, the feedback system of feedback channel HS-DPCCH will become the form of Fig. 2, that is: two carrier wave combined codings of ACK/NACK part, the PCI/CQI of the combined coding of the carrier wave of configuration MIMO and the CQI that does not dispose the carrier wave of MIMO alternately send.
On the other hand, in multicarrier evolution process more, i.e. under the pattern of MIMO and MC (Multi-cell, many sub-districts) combination, also may there be the situation of part carrier wave configuration MIMO.Therefore, the present inventor finds, under MIMO and multicarrier binding pattern, in the time of part carrier wave configuration MIMO, is necessary the feedback of PCI is carried out further optimal design.
Summary of the invention
The embodiment of the invention provides sending method and the device of a kind of PCI, can under the situation of part carrier wave configuration MIMO the feedback of PCI further be optimized.
The embodiment of the invention is achieved through the following technical solutions:
The embodiment of the invention provides the sending method of a kind of precoding control indication PCI, comprising:
The PCI of first carrier and the channel quality indicator (CQI) of second carrier wave are carried out combined coding, and described first carrier is for disposing the carrier wave that has more into many output MIMO, and second carrier wave is not for disposing the carrier wave of MIMO;
The combined coding of the CQI of the PCI of the described first carrier of transmission and described second carrier wave on the subframe of a High-Speed Dedicated Physical Control Channel HS-DPCCH.
The embodiment of the invention provides the dispensing device of a kind of precoding control indication PCI, comprising:
First coding module is used for the PCI of first carrier and the channel quality indicator (CQI) combined coding of second carrier wave, and described first carrier is the carrier wave of configuration MIMO, and second carrier wave is not for disposing the carrier wave of MIMO;
Sending module is used on the subframe of a High-Speed Dedicated Physical Control Channel HS-DPCCH sending the combined coding of the CQI of the PCI of described first carrier and described second carrier wave.
The embodiment of the invention provides a kind of user equipment (UE), comprising: the dispensing device of PCI as described above.
The technical scheme that is provided by the invention described above embodiment as can be seen, the embodiment of the invention has realized that MIMO combines with multicarrier and the part carrier wave disposes under the situation of MIMO pattern, make the PCI of the carrier wave of configuration MIMO feed back more timely, thereby make Node B can in time change the weighted factor of adjustment data flow, and further increase the throughput of system according to the decline of channel.
Description of drawings
Fig. 1 is that prior art DC combines with MIMO, and all disposes feedback channel HS-DPCCH structural representation under the MIMO pattern;
Fig. 2 is that prior art DC combines with MIMO, feedback channel HS-DPCCH structural representation under the carrier wave configuration MIMO pattern;
Fig. 3 is an one embodiment of the invention PCI sending method flow chart;
Fig. 4 is another embodiment of the present invention PCI sending method flow chart;
Fig. 5 is two carrier waves in the embodiment of the invention, feedback channel HS-DPCCH structural representation under one of them configuration MIMO situation;
Fig. 6 is (20,7) RM encoder matrix schematic diagram in the embodiment of the invention;
Fig. 7 is three carrier waves in the embodiment of the invention, feedback channel HS-DPCCH structural representation under the part carrier wave configuration MIMO situation;
Fig. 8 is four carrier waves in the embodiment of the invention, feedback channel HS-DPCCH structural representation under the part carrier wave configuration MIMO situation;
Fig. 9 is the dispensing device structural representation of embodiment of the invention PCI.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, be understandable that described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention provides the sending method of a kind of PCI, after the embodiment of the invention relates to MIMO and multicarrier combines, and the situation of part carrier wave configuration MIMO, as shown in Figure 3, the sending method of its PCI comprises the steps:
Step 301: the PCI of first carrier and the channel quality indicator (CQI) of second carrier wave are carried out combined coding.
Wherein, this first carrier is the carrier wave of configuration MIMO, and second carrier wave is not for disposing the carrier wave of MIMO.
Step 302: the combined coding of the CQI of the PCI of this first carrier of transmission and this second carrier wave on the subframe of a HS-DPCCH.
It will be understood by those skilled in the art that the combined coding of the ack/nack signal of the ack/nack signal that on this subframe of HS-DPCCH, can also send this first carrier and this second carrier wave.
The embodiment of the invention will be owing to will dispose the PCI and the CQI combined coding that does not dispose the carrier wave of MIMO of the carrier wave of MIMO, can make the PCI feedback of configuration MIMO carrier wave more timely like this, thereby make Node B can be in time change the weighted factor of adjusting data flow, further increase the throughput of system according to the decline of channel.
As shown in Figure 4, this method can further include:
Step 303: the combined coding of the CQI of the PCI of this first carrier of transmission and this first carrier on the next subframe of described HS-DPCCH, and so circulation.
That is: alternately send the combined coding of PCI and the CQI of the carrier wave that does not dispose MIMO of the carrier wave of the combined coding of PCI/CQI of configuration MIMO carrier wave and configuration MIMO in the CQI/PCI territory of HS-DPCCH subframe.
The described method of the embodiment of the invention is applicable to the situation more than or equal to two carrier waves.
The embodiment of the invention will be owing to will dispose the PCI and the CQI combined coding that does not dispose the carrier wave of MIMO of the carrier wave of MIMO, can make the PCI feedback of configuration MIMO carrier wave more timely like this, on a HS-DPCCH channel, each subframe can feedback configuration MIMO the PCI of carrier wave, make among the feedback cycle of PCI and prior art Fig. 2 one times of reduced in comparison, thereby make Node B can be in time change the weighted factor of adjusting data flow, further increase the throughput of system according to the decline of channel.
For further understanding the present invention, describe in detail with the sending method of instantiation below to PCI under described MIMO of the embodiment of the invention and the multicarrier binding pattern.
Suppose that f1 and f2 are two carrier waves in the multicarrier system (comprising DC and MC), wherein disposed MIMO on the f1, do not dispose MIMO on the f2, the feedback information of described two carrier wave f1 and f2 feeds back on a HS-DPCCH channel.In order to make the PCI1 feedback on the f1 more timely, with PCI1 on the f1 and the CQI2 combined coding on the f2, feedback system as shown in Figure 5, CQI1 is the CQI of f1 among Fig. 5, and described combined coding can adopt the coding of the RM of (20,7), the RM encoder matrix of its (20,7) as shown in Figure 6.Suppose y
N+1Be the element among CQI2 and the PCI1, z
iBe the output sequence behind the coding, then
Wherein, i=0,1 ..., 19, M
I, nElement for encoder matrix among Fig. 6.
From accompanying drawing 5 as can be seen, by with PCI1 on the f1 and the CQI2 combined coding on the f2, the PCI1 of the carrier wave f1 of configuration MIMO can both be sent in each subframe of a HS-DPCCH channel, make the feedback cycle of PCI shorten one times with respect to prior art (seeing accompanying drawing 2), the feedback that has realized PCI is more timely, thereby make Node B can be in time change the weighted factor of adjusting data flow, further increase the throughput of system according to the decline of channel.
For situation greater than two carrier waves: for example system configuration three carrier waves, wherein first carrier has disposed MIMO, second carrier wave and the 3rd carrier wave do not dispose MIMO, then the feedback information of first carrier and the 3rd carrier wave can be placed on the HS-DPCCH channel and feed back, the feedback information of second carrier wave is placed on another HS-DPCCH channel and feeds back.Like this, the PCI of first carrier can with the CQI combined coding of the 3rd carrier wave, concrete feedback system can be as shown in Figure 7.For the situation of two carrier wave configuration MIMO in three carrier waves, also can similarly handle.From accompanying drawing 7 as can be seen, present embodiment is suitable equally for the situation of three carrier waves, the PCI of the first carrier by will disposing MIMO and do not dispose the CQI combined coding of the 3rd carrier wave of MIMO, and be placed on the HS-DPCCH channel and feed back, the PCI of the first carrier of configuration MIMO can both be fed back on each subframe of this HS-DPCCH channel, compare with prior art (seeing accompanying drawing 2), the feedback cycle of PCI has shortened one times, the feedback that has realized PCI is more timely, thereby make Node B can be in time change the weighted factor of adjusting data flow, further increase the throughput of system according to the decline of channel.
For another example system configuration four carrier waves, wherein, the first carrier and second carrier wave have disposed MIMO, the 3rd carrier wave and the 4th carrier wave do not dispose MIMO, then the feedback information of first carrier and the 3rd carrier wave can be placed on the HS-DPCCH channel and feed back, the feedback information of second carrier wave and the 4th carrier wave is placed on another HS-DPCCH channel and feeds back.Like this, the PCI of first carrier can with the CQI combined coding of the 3rd carrier wave; The PCI of second carrier wave can with the CQI combined coding of the 4th carrier wave, concrete feedback system can be as shown in Figure 8.Disposed the situation that MIMO or three carrier waves have disposed MIMO for carrier wave in four carrier waves, also can be with reference to processing.From accompanying drawing 8 as can be seen, present embodiment is suitable equally for the situation of four carrier waves, the PCI of the first carrier by will disposing MIMO and do not dispose the CQI combined coding of the 3rd carrier wave of MIMO, and be placed on the HS-DPCCH channel and feed back, with the PCI of second carrier wave of configuration MIMO with do not dispose the CQI combined coding of the 4th carrier wave of MIMO, the PCI of the first carrier that disposes MIMO and the PCI of second carrier wave can both be fed back on each subframe of corresponding HS-DPCCH channel, compare with prior art (seeing accompanying drawing 2), make the feedback cycle of PCI shorten one times, the feedback that has realized PCI is more timely, thereby make Node B can be in time change the weighted factor of adjusting data flow, further increase the throughput of system according to the decline of channel.
From top introduction as can be known, the embodiment of the invention is equally applicable to the more situation of multicarrier.
The embodiment of the invention also provides the dispensing device of a kind of PCI, and under MIMO and the multicarrier binding pattern, as shown in Figure 9, this device comprises:
The embodiment of the invention first coding module will be owing to will dispose the PCI and the CQI combined coding that does not dispose the carrier wave of MIMO of the carrier wave of MIMO, can make the PCI feedback of configuration MIMO carrier wave more timely like this, thereby make Node B can be in time change the weighted factor of adjusting data flow, further increase the throughput of system according to the decline of channel.
Described device can also comprise:
Described sending module 91 also is used on this subframe of this HS-DPCCH sending the combined coding of the ack/nack signal of the ack/nack signal of this first carrier and this second carrier wave.
In addition, this sending module 91 also is used on the next subframe of this HS-DPCCH sending the combined coding of the CQI of the PCI of this first carrier and this first carrier; And so circulation.
Described device is applicable to more than or equal to two carrier waves, and the situation of part carrier wave configuration MIMO.
It will be understood by those skilled in the art that this device can be logic module or the physical location of UE (User Equipment, subscriber equipment).
The described device of the embodiment of the invention will be owing to will dispose the PCI and the CQI combined coding that does not dispose the carrier wave of MIMO of the carrier wave of MIMO, can make the PCI feedback of configuration MIMO carrier wave more timely like this, on a HS-DPCCH channel, each subframe can feedback configuration MIMO PCI, make among the feedback cycle of PCI and prior art Fig. 2 one times of reduced in comparison, thereby make Node B can be in time change the weighted factor of adjusting data flow, further increase the throughput of system according to the decline of channel.
In sum, the embodiment of the invention has realized that MIMO combines with multicarrier and the part carrier wave disposes under the MIMO pattern, make the PCI of the carrier wave of configuration MIMO feed back more timely, thereby make Node B can be in time change the weighted factor of adjusting data flow, further increase the throughput of system according to the decline of channel.
One of ordinary skill in the art will appreciate that realize that all or part of step in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer-readable recording medium.This readable storage medium storing program for executing is read-only memory (being called for short ROM), random access memory (being called for short RAM), disk, CD etc. for example.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (7)
1. the sending method of a precoding control indication PCI is characterized in that, comprising:
The PCI of first carrier and the channel quality indicator (CQI) of second carrier wave are carried out combined coding, and described first carrier is for disposing the carrier wave that has more into many output MIMO, and second carrier wave is not for disposing the carrier wave of MIMO;
The combined coding of the CQI of the PCI of the described first carrier of transmission and described second carrier wave on the subframe of a High-Speed Dedicated Physical Control Channel HS-DPCCH.
2. the method for claim 1 is characterized in that, also comprises:
The combined coding of the ack/nack signal of the affirmation/non-affirmation ack/nack signal of the described first carrier of transmission and described second carrier wave on the described subframe of described HS-DPCCH.
3. the method for claim 1 is characterized in that, also comprises:
The combined coding of the CQI of the PCI of the described first carrier of transmission and described first carrier on the next subframe of described HS-DPCCH; And so circulation.
4. the dispensing device of a precoding control indication PCI is characterized in that, comprising:
First coding module is used for the PCI of first carrier and the channel quality indicator (CQI) combined coding of second carrier wave, and described first carrier is the carrier wave of configuration MIMO, and second carrier wave is not for disposing the carrier wave of MIMO;
Sending module is used on the subframe of a High-Speed Dedicated Physical Control Channel HS-DPCCH sending the combined coding of the CQI of the PCI of described first carrier and described second carrier wave.
5. device as claimed in claim 4 is characterized in that, also comprises:
Second coding module is used for the ack/nack signal of described first carrier and the ack/nack signal combined coding of described second carrier wave;
Described sending module also is used on the described subframe of described HS-DPCCH sending the combined coding of the ack/nack signal of the ack/nack signal of described first carrier and described second carrier wave.
6. device as claimed in claim 4 is characterized in that, described sending module also is used on the next subframe of described HS-DPCCH sending the combined coding of the CQI of the PCI of described first carrier and described first carrier; And so circulation.
7. a user equipment (UE) is characterized in that, comprising:
Dispensing device as any described PCI of claim 4 to 6.
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| CN200910087087XA CN101932109A (en) | 2009-06-18 | 2009-06-18 | Method and device for transmitting precoding control indication (PCI) |
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| CN200910087087XA CN101932109A (en) | 2009-06-18 | 2009-06-18 | Method and device for transmitting precoding control indication (PCI) |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013044667A1 (en) * | 2011-09-30 | 2013-04-04 | 中兴通讯股份有限公司 | Method for activating multiple streams transmission ue to transmit hs-dpcch and ue thereof |
| US9197305B2 (en) | 2011-11-01 | 2015-11-24 | Huawei Technologies Co., Ltd. | Precoding control indication feedback method, user equipment, and base station |
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| US20080080431A1 (en) * | 2006-10-02 | 2008-04-03 | Interdigital Technology Corporation | Method and apparatus for encoding channel quality indicator and precoding control information bits |
| CN101217682A (en) * | 2007-01-05 | 2008-07-09 | 华为技术有限公司 | MIMO transmitting method, receiving method, system and device |
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- 2009-06-18 CN CN200910087087XA patent/CN101932109A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080080431A1 (en) * | 2006-10-02 | 2008-04-03 | Interdigital Technology Corporation | Method and apparatus for encoding channel quality indicator and precoding control information bits |
| CN101217682A (en) * | 2007-01-05 | 2008-07-09 | 华为技术有限公司 | MIMO transmitting method, receiving method, system and device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013044667A1 (en) * | 2011-09-30 | 2013-04-04 | 中兴通讯股份有限公司 | Method for activating multiple streams transmission ue to transmit hs-dpcch and ue thereof |
| US9350512B2 (en) | 2011-09-30 | 2016-05-24 | Zte Corporation | Method for activating multiple streams transmission UE to transmit HS-DPCCH and UE thereof |
| US9197305B2 (en) | 2011-11-01 | 2015-11-24 | Huawei Technologies Co., Ltd. | Precoding control indication feedback method, user equipment, and base station |
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Application publication date: 20101229 |