CN101931447A - Uplink data transmission method and device - Google Patents
Uplink data transmission method and device Download PDFInfo
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- CN101931447A CN101931447A CN2009101512063A CN200910151206A CN101931447A CN 101931447 A CN101931447 A CN 101931447A CN 2009101512063 A CN2009101512063 A CN 2009101512063A CN 200910151206 A CN200910151206 A CN 200910151206A CN 101931447 A CN101931447 A CN 101931447A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
Abstract
The embodiment of the invention discloses an uplink data transmission method and an uplink data transmission device, which are used for realizing a multi-antenna transmission scheme in a WCDMA system. The method comprises the following steps of: dividing a data stream of a user to be transmitted into a corresponding number of data stream according to the number of antennae; acquiring pilot frequency sequences corresponding to the data streams of the antennae, wherein pilot frequency sequences corresponding to the data streams of the antennae are mutually orthogonal; and transmitting the data stream of each antenna by using a dedicated physical data channel or enhanced dedicated physical data channel, and transmitting the pilot frequency sequence corresponding to the data stream of each antenna by using a dedicated physical control channel. The embodiment of the invention also provides an uplink data transmission device. The method and the device can realize the multi-antenna transmission scheme in the WCDMA system.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of method for transmitting uplink data and device.
Background technology
Along with the continuous development of radio network technique, Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wideband Code Division Multiple Access) system has progressively obtained using widely.
Multicarrier in the WCDMA system and multi-antenna technology are to begin the new projects that propose recently, and multi-antenna technology is by increasing antenna number, utilize spatial reuse to improve transmission rate, increasing up covering.
In WCDMA system single antenna scheme in the past, up path comprises Dedicated Physical Data Channel (DPDCH, Dedicaed Physical Daa Channel) and Dedicated Physical Control Channel (DPCCH, Dedicaed Physical Control Channel), these two channels need be sent out simultaneously, what carry among the DPDCH is upstream, what carry among the DPCCH is pilot frequency sequence, this pilot frequency sequence is used to carry out channel estimating and path search, be understandable that, except using DPDCH transmit ascending data stream, can also use enhanced dedicated physical data channel (E-DPDCH, Enhanced Dedicaed Physical Daa Channel) transmit ascending data stream.
DPCCH pilot frequency sequence of the prior art can use third generation partner program (3GPP, 3rd Generaion Partnership Project) the DPCCH pilot frequency sequence of stipulating in the agreement, but after the WCDMA system introduces multi-antenna technology, different antennas all needs transmitting data stream, then can make and interfere with each other between the DPCCH pilot frequency sequence of different data streams, thereby influence channel estimating and path search, so can not in the WCDMA system, realize the multi-antenna transmitting transmission scheme in the prior art.
Summary of the invention
The embodiment of the invention provides a kind of method for transmitting uplink data and device, can realize the multi-antenna transmitting transmission scheme in the WCDMA system.
The method for transmitting uplink data that the embodiment of the invention provides comprises the data flow that same user's data flow to be sent is divided into corresponding number according to the number of antenna; Obtain the pilot frequency sequence of the data flow correspondence on each antenna, mutually orthogonal between the pilot frequency sequence of the data flow correspondence on described each antenna; On each antenna, use Dedicated Physical Data Channel or enhanced dedicated physical data channel to send data flow on the antenna separately, use Dedicated Physical Control Channel to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
The method for transmitting uplink data that the embodiment of the invention provides comprises: the data flow that same user's data flow to be sent is divided into corresponding number according to the number of antenna; Obtain the orthogonal variable spreading factor factor sign indicating number of the Dedicated Physical Control Channel of the data flow correspondence on each antenna, mutually orthogonal and satisfy minimum cubic metric value principle between the orthogonal variable spreading factor factor sign indicating number of the Dedicated Physical Control Channel of the data flow correspondence on described each antenna; On each antenna, use Dedicated Physical Data Channel or enhanced dedicated physical data channel to send data flow on the antenna separately, use Dedicated Physical Control Channel to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
The method for transmitting uplink data that the embodiment of the invention provides comprises: the data flow that same user's data flow to be sent is divided into corresponding number according to the number of antenna; Multiply by the pseudo random sequence of scrambler correspondence by chip-level for the Dedicated Physical Control Channel code channel of data flow on each antenna and data flow correspondence, the pseudo random sequence that the Dedicated Physical Control Channel code channel of data flow on each antenna and data flow correspondence is taken advantage of is identical, the pseudo random sequence difference that the Dedicated Physical Control Channel code channel of data flow on the different antennae and data flow correspondence is taken advantage of; On each antenna, use Dedicated Physical Data Channel or enhanced dedicated physical data channel to send to multiply by on the antenna separately the data flow after the pseudo random sequence, use the Dedicated Physical Control Channel that multiply by after the pseudo random sequence to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
The upstream data dispensing device that the embodiment of the invention provides comprises: first division unit is used for same user's data flow to be sent is divided into according to the number of antenna the data flow of corresponding number; First acquiring unit is used to obtain the pilot frequency sequence of the data flow correspondence on each antenna, mutually orthogonal between the pilot frequency sequence of the data flow correspondence on described each antenna; First antenna sets is used to use Dedicated Physical Data Channel or enhanced dedicated physical data channel to send data flow on the antenna separately, uses Dedicated Physical Control Channel to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
The upstream data dispensing device that the embodiment of the invention provides comprises: second division unit is used for same user's data flow to be sent is divided into according to the number of antenna the data flow of corresponding number; Second acquisition unit, be used to obtain the orthogonal variable spreading factor factor sign indicating number of the Dedicated Physical Control Channel of the data flow correspondence on each antenna, mutually orthogonal and satisfy minimum cubic metric value principle between the orthogonal variable spreading factor factor sign indicating number of the Dedicated Physical Control Channel of the data flow correspondence on described each antenna; Second antenna sets is used to use Dedicated Physical Data Channel or enhanced dedicated physical data channel to send data flow on the antenna separately, uses Dedicated Physical Control Channel to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
The upstream data dispensing device that the embodiment of the invention provides comprises: the 3rd division unit is used for same user's data flow to be sent is divided into according to the number of antenna the data flow of corresponding number; Scrambling unit, the pseudo random sequence that is used to data flow on each antenna and Dedicated Physical Control Channel code channel to multiply by the scrambler correspondence by chip-level, the pseudo random sequence that the Dedicated Physical Control Channel code channel of data flow on each antenna and data flow correspondence is taken advantage of is identical, the pseudo random sequence difference that the Dedicated Physical Control Channel code channel of data flow on the different antennae and data flow correspondence is taken advantage of; The third antenna group, be used to use Dedicated Physical Data Channel or enhanced dedicated physical data channel to send to multiply by on the antenna separately the data flow after the pseudo random sequence, use the Dedicated Physical Control Channel that multiply by after the pseudo random sequence to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
As can be seen from the above technical solutions, the embodiment of the invention has the following advantages:
In the present embodiment, for the DPCCH code channel on the different antennas is selected mutually orthogonal pilot frequency sequence, therefore can make cross correlation minimum between the DPCCH pilot frequency sequence of the data flow correspondence on the different antennae, be can the phase mutual interference between the DPCCH pilot frequency sequence, what can be independent of each other according to the DPCCH pilot frequency sequence of the data flow correspondence on the different antennae carries out channel estimating and path search, thereby can realize the multi-antenna transmitting transmission scheme in the WCDMA system.
Description of drawings
Fig. 1 is a pilot sequence generating method embodiment schematic diagram in the embodiment of the invention;
Fig. 2 is embodiment schematic diagram of method for transmitting uplink data in the embodiment of the invention;
Fig. 3 is another embodiment schematic diagram of method for transmitting uplink data in the embodiment of the invention;
Fig. 4 is another embodiment schematic diagram of method for transmitting uplink data in the embodiment of the invention;
Fig. 5 is a pilot frequency sequence generating apparatus embodiment schematic diagram in the embodiment of the invention;
Fig. 6 is embodiment schematic diagram of upstream data dispensing device in the embodiment of the invention;
Fig. 7 is another embodiment schematic diagram of upstream data dispensing device in the embodiment of the invention;
Fig. 8 is another embodiment schematic diagram of upstream data dispensing device in the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of pilot sequence generating method, method for transmitting uplink data and device, is used for realizing the multi-antenna transmitting transmission scheme in the WCDMA system.
See also Fig. 1, pilot sequence generating method embodiment comprises in the embodiment of the invention:
101, obtain first pilot frequency sequence that presets;
In the present embodiment, first pilot frequency sequence that presets can be the DPCCH pilot frequency sequence that defines in the 3GPP agreement, and this DPCCH pilot frequency sequence specifically can be shown in following table 1 and table 2:
Table 1
What describe in the above-mentioned table 1 is that frequency pilot sign is respectively 3,4, and 5, the DPCCH pilot frequency sequence in the time of 6.N
Pilot=3 represent that promptly frequency pilot sign is 3.
Table 2
What describe in the above-mentioned table 2 is the DPCCH pilot frequency sequence of frequency pilot sign when being respectively 7 and 8.
102, first pilot frequency sequence is handled accordingly obtained second pilot frequency sequence;
In the present embodiment, after having determined first pilot frequency sequence, can handle accordingly first pilot frequency sequence and obtain second pilot frequency sequence, this second pilot frequency sequence and the first pilot frequency sequence quadrature.
Second pilot frequency sequence in the present embodiment specifically can be as following table 3 to shown in the table 6:
Table 3
What describe in the above-mentioned table 3 is the DPCCH pilot frequency sequence of frequency pilot sign when being respectively 4 and 6.
Table 4
What describe in the above-mentioned table 4 is the DPCCH pilot frequency sequence of frequency pilot sign when being 8.
Table 5
What describe in the above-mentioned table 5 is the DPCCH pilot frequency sequence of frequency pilot sign when being respectively 3 and 5.
Table 6
What describe in the above-mentioned table 6 is the DPCCH pilot frequency sequence of frequency pilot sign when being 7.
Need to prove that above-mentioned table 3 to table 6 is second pilot frequency sequence, this second pilot frequency sequence and the first pilot frequency sequence quadrature.
Be understandable that, in actual applications, specifically can carry out space-time emission diversity (STTD, Space-Time Transmit Diversity) and obtain second pilot frequency sequence, specifically can the even column in first pilot frequency sequence be remained unchanged first pilot frequency sequence, the odd column negate, the 0th row and the 1st row are exchanged afterwards, the 2nd row and the 3rd row exchange again, and the 4th row and the 5th row exchange, the 6th row and the 7th row exchange, and second pilot frequency sequence that then obtains is shown in following table 7 and table 8:
Table 7
What describe in the above-mentioned table 7 is the DPCCH pilot frequency sequence of frequency pilot sign when being respectively 4 and 6.
Table 8
What describe in the above-mentioned table 8 is the DPCCH pilot frequency sequence of frequency pilot sign when being 8.
Above-mentioned table 7 and table 8 are that the even column in first pilot frequency sequence is remained unchanged, the odd column negate, again the 0th row and the 1st row are exchanged afterwards, the 2nd row and the 3rd row exchange, the 4th row and the 5th row exchange, the 6th row and the 7th row exchange second pilot frequency sequence that obtains, be understandable that, in actual applications, can also the odd column in first pilot frequency sequence be remained unchanged equally, the even column negate, the 0th row and the 1st row are exchanged afterwards, the 2nd row and the 3rd row exchange again, and the 4th row and the 5th row exchange, the 6th row and the 7th row exchange second pilot frequency sequence that obtains, shown in table 9 specific as follows and the table 10:
Table 9
What describe in the above-mentioned table 9 is the DPCCH pilot frequency sequence of frequency pilot sign when being respectively 4 and 6.
Table 10
What describe in the above-mentioned table 10 is the DPCCH pilot frequency sequence of frequency pilot sign when being 8.
Above-mentioned table 7 is all described to table 10 is the DPCCH pilot frequency sequence of frequency pilot sign when being even number, be understandable that, frequency pilot sign be the DPCCH pilot frequency sequence of odd number N can the DPCCH pilot frequency sequence when above-mentioned table 7 to the frequency pilot sign shown in the table 10 is even number N+1 deletion the 1st row or last row obtain, for example frequency pilot sign is that 7 DPCCH pilot frequency sequence can be that deletion the 1st is listed as or last row obtain 8 the DPCCH pilot frequency sequence from frequency pilot sign.
Need to prove, in the present embodiment, except the mode that adopts the STTD coding, can also adopt other mode that first pilot frequency sequence is handled and obtain second pilot frequency sequence, only need make second pilot frequency sequence and the first pilot frequency sequence quadrature get final product, concrete processing mode does not limit herein.
In the present embodiment, can also further require second pilot frequency sequence to satisfy other some prerequisites, for example second pilot frequency sequence can be the pilot frequency sequence of autocorrelation minimum, also can be the pilot frequency sequence that meets the STTD mapping ruler.
In the present embodiment, choose after second pilot frequency sequence that satisfies prerequisite, promptly can be the pilot frequency sequence of the data flow selection quadrature on the different antennas, therefore can make cross correlation minimum between the DPCCH pilot frequency sequence of the data flow correspondence on the different antennae, and the autocorrelation minimum of DPCCH pilot frequency sequence, be can the phase mutual interference between the DPCCH pilot frequency sequence, and DPCCH pilot frequency sequence inside does not have interference yet, what can be independent of each other according to the DPCCH pilot frequency sequence of the data flow correspondence on the different antennae carries out channel estimating and path search, thereby can realize the multi-antenna transmitting transmission scheme in the WCDMA system.
Below the method for transmitting uplink data embodiment in the embodiment of the invention is described, sees also Fig. 2, embodiment of the data transmission method for uplink in the embodiment of the invention comprises:
201, same user's data flow to be sent is divided into the data flow of corresponding number according to the number of antenna;
When the user need send data by many antenna datas dispensing device, many antenna datas dispensing device got access to this user's data flow to be sent, and will this data flow to be sent be divided into the data flow of corresponding number according to the number of antenna.
In the present embodiment, concrete many antenna datas dispensing device can be the base station, is the device of other types perhaps, does not specifically limit herein.
In the present embodiment, the process that data flow to be sent is divided into the data flow of corresponding number according to the number of antenna is those skilled in the art's common practise, and detailed process does not limit herein.
202, obtain the pilot frequency sequence of the data flow correspondence on each antenna, mutually orthogonal and satisfy minimum cubic metric value (Cubic Metric, be called for short CM) principle between the pilot frequency sequence of the data flow correspondence on each antenna;
The CM value is the parameter that is used to represent to produce when baseband signal is passed through power amplifier nonlinear distortion, cube item (three rank) coefficient when can be used for weighing the emission data by series expansion, and CM is big more, and back-off is high more.
Be that example describes with two antennas in the present embodiment, specifically obtain the process process unanimity of the generation pilot frequency sequence described in the pilot sequence generating method embodiment as described above of the pilot frequency sequence of the data flow correspondence on each antenna, repeat no more herein.
In the present embodiment, mutually orthogonal between the pilot frequency sequence that pilot frequency sequence that the data flow on first antenna is used and the data flow on second antenna are used, and the autocorrelation minimum of pilot frequency sequence.
Need to prove, the scheme of two antennas can conspicuously expand to the scheme of more a plurality of antennas in the practical application in the present embodiment, only need satisfy that mutually orthogonal gets final product between the pilot frequency sequence of the data flow correspondence on each antenna, further can also require the autocorrelation minimum of each pilot frequency sequence, or each pilot frequency sequence meets the STTD mapping ruler.
203, on each antenna, use DPDCH or E-DPDCH to send data flow on the antenna separately, use DPCCH to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
In the present embodiment, after all having distributed corresponding pilot frequency sequence for each antenna, can use DPDCH or E-DPDCH to send data flow on the antenna separately on each antenna, use DPCCH to send the pilot frequency sequence of the data flow correspondence on the antenna separately, the concrete process that sends is those skilled in the art's a common practise, does not limit herein.
In the present embodiment, for the data flow on the different antennas is selected mutually orthogonal pilot frequency sequence, therefore can make cross correlation minimum between the DPCCH pilot frequency sequence of the data flow correspondence on the different antennae, be can the phase mutual interference between the DPCCH pilot frequency sequence, what can be independent of each other according to the DPCCH pilot frequency sequence of the data flow correspondence on the different antennae carries out channel estimating and path search, thereby can realize the multi-antenna transmitting transmission scheme in the WCDMA system.
Below the method for transmitting uplink data embodiment in the embodiment of the invention is described, sees also Fig. 3, another embodiment of the data transmission method for uplink in the embodiment of the invention comprises:
301, same user's data flow to be sent is divided into the data flow of corresponding number according to the number of antenna;
Concrete partition process is consistent with partition process among the embodiment shown in Figure 2 in the present embodiment, repeats no more herein.
302, obtain the orthogonal variable spreading factor factor (OVSF, the Orthogonal Variable Spreading Factor) sign indicating number of the DPCCH of the data flow correspondence on each antenna;
In the present embodiment, mutually orthogonal between the ovsf code of the DPCCH of the data flow correspondence on each antenna.
Be that example describes with two antennas in the present embodiment, specifically obtain the data flow correspondence on each antenna DPCCH ovsf code mode can for:
The ovsf code of choosing the DPCCH of the data flow on first antenna is Cch, 256,0;
The ovsf code of choosing the DPCCH of the data flow on second antenna is Cch, 256, and x, x are the integer from 1 to 128, the preferred value of x is 2,3,4,5,7,8,9,15,16,17,127.
303, on each antenna, use DPDCH or E-DPDCH to send data flow on the antenna separately, use DPCCH to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
In the present embodiment, after the ovsf code of the DPCCH of the data flow correspondence on having determined each antenna, can be on each antenna, use DPDCH or E-DPDCH to send data flow on the antenna separately, use DPCCH to send the pilot frequency sequence of the data flow correspondence on the antenna separately, the concrete process that sends is those skilled in the art's a common practise, does not limit herein.
In the present embodiment, select the ovsf code of mutually orthogonal DPCCH for the data flow on the different antennas, therefore what can be independent of each other according to the DPCCH pilot frequency sequence of the data flow on the different antennae equally carries out channel estimating and path search, thereby can realize the multi-antenna transmitting transmission scheme in the WCDMA system.
Below the method for transmitting uplink data embodiment in the embodiment of the invention is described, sees also Fig. 4, another embodiment of the data transmission method for uplink in the embodiment of the invention comprises:
401, same user's data flow to be sent is divided into the data flow of corresponding number according to the number of antenna;
Concrete partition process is consistent with partition process among the embodiment shown in Figure 2 in the present embodiment, repeats no more herein.
402, the pseudo random sequence that multiply by the scrambler correspondence respectively by chip-level for the data flow on each antenna and DPCCH code channel;
In the present embodiment, after data flow to be sent is divided, the DPCCH code channel of data flow on each antenna and data flow correspondence be multiply by the pseudo random sequence of scrambler correspondence respectively by chip-level, the pseudo random sequence that the DPCCH code channel of data flow on each antenna and data flow correspondence is taken advantage of is identical, the pseudo random sequence difference that the DPCCH code channel of data flow on the different antennae and data flow correspondence is taken advantage of satisfies the characteristic of pseudo random sequence between the different scramblers.
403, on each antenna, use DPDCH or E-DPDCH to send to multiply by on the antenna separately the data flow after the pseudo random sequence, use the DPCCH that multiply by after the pseudo random sequence to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
In the present embodiment, the data flow on each antenna and DPCCH code channel all be multiply by the pseudo random sequence of scrambler correspondence by chip-level after, can be on each antenna, use DPDCH or E-DPDCH to send data flow on the antenna separately, the pilot frequency sequence that DPCCH after the pseudo random sequence sends the data flow correspondence on the antenna is separately multiply by in use, the concrete process that sends is those skilled in the art's a common practise, does not limit herein.
In the present embodiment, for the data flow on the different antennas and DPCCH multiply by after the pseudo random sequence of scrambler correspondence by chip-level respectively, can so that the interference between the different data flow by Gauss's albefaction, it is minimum to be that interference between each antenna drops to, thereby can realize the multi-antenna transmitting transmission scheme in the WCDMA system.
Introduce the pilot frequency sequence generating apparatus in the embodiment of the invention below, see also Fig. 5, the pilot frequency sequence generating apparatus in the embodiment of the invention comprises:
This coding unit is used for that first pilot frequency sequence is carried out the STTD coding and obtains second pilot frequency sequence.
For ease of understanding, with a concrete application scenarios above-mentioned pilot frequency sequence generating apparatus is described below:
In the present embodiment, sequence acquiring unit 501 obtains first pilot frequency sequence that presets, and this first pilot frequency sequence that presets can be the DPCCH pilot frequency sequence that defines in 3GPP 25.211 agreements, specifically can be shown in table 1 and table 2.
After having determined first pilot frequency sequence, processing unit 502 can be handled accordingly first pilot frequency sequence and obtain second pilot frequency sequence, and this second pilot frequency sequence and the first pilot frequency sequence quadrature, this second pilot frequency sequence specifically can be as table 3 to shown in the tables 10.
In the present embodiment, processing unit 502 can be coding unit, promptly first pilot frequency sequence is carried out the STTD coding and obtain second pilot frequency sequence, need to prove, processing unit 502 is except the mode that adopts the STTD coding, can also adopt other mode that first pilot frequency sequence is handled and obtain second pilot frequency sequence, only need make second pilot frequency sequence and the first pilot frequency sequence quadrature get final product, concrete processing mode does not limit herein.
In the present embodiment, second pilot frequency sequence can also be the pilot frequency sequence of autocorrelation minimum or the pilot frequency sequence that meets the STTD mapping ruler.
In the present embodiment, processing unit 502 obtains after the different pilot frequency sequences, promptly can be the pilot frequency sequence of the data flow selection quadrature on the different antennas, therefore can make cross correlation minimum between the DPCCH pilot frequency sequence of the data flow correspondence on the different antennae, and the autocorrelation minimum of DPCCH pilot frequency sequence, be can the phase mutual interference between the DPCCH pilot frequency sequence, and DPCCH pilot frequency sequence inside does not have interference yet, what can be independent of each other according to the DPCCH pilot frequency sequence of the data flow correspondence on the different antennae carries out channel estimating and path search, thereby can realize the multi-antenna transmitting transmission scheme in the WCDMA system.
Introduce the upstream data dispensing device in the embodiment of the invention below, see also Fig. 6, embodiment of the data sending device in the embodiment of the invention comprises:
First acquiring unit 602 is used to obtain the pilot frequency sequence of the data flow correspondence on each antenna, mutually orthogonal between the pilot frequency sequence of the data flow correspondence on each antenna;
First antenna sets 603 is used to use DPDCH or E-DPDCH to send data flow on the antenna separately, uses DPCCH to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
First acquiring unit 602 in the present embodiment specifically can be shown in Figure 5 as described above the pilot frequency sequence generating apparatus, promptly first acquiring unit 602 can access first pilot frequency sequence and second pilot frequency sequence.Pilot frequency sequence in this enforcement can be shown in table 3-table 10 and respective change among the preceding embodiment.
In the present embodiment, first acquiring unit 602 is that the data flow on the antenna different in first antenna sets 603 is selected mutually orthogonal pilot frequency sequence, therefore can make the cross correlation minimum between the DPCCH pilot frequency sequence of the data flow correspondence on the antennas different in the antenna sets 603 of winning, be can the phase mutual interference between the DPCCH pilot frequency sequence, what can be independent of each other according to the DPCCH pilot frequency sequence of the data flow correspondence on the different antennae carries out channel estimating and path search, thereby can realize the multi-antenna transmitting transmission scheme in the WCDMA system.
Introduce the upstream data dispensing device in the embodiment of the invention below, see also Fig. 7, another embodiment of the data sending device in the embodiment of the invention comprises:
Second antenna sets 703 is used to use DPDCH or E-DPDCH to send data flow on the antenna separately, uses DPCCH to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
For ease of understanding, with a concrete application scenarios above-mentioned data sending device is described below:
When the user need send data by many antenna datas dispensing device, second division unit 701 got access to this user's data flow to be sent, and will this data flow to be sent be divided into the data flow of corresponding number according to the number of antenna.
In the present embodiment, second acquisition unit 702 obtains the ovsf code of the DPCCH of the data flow correspondence on each antenna in second antenna sets 703, mutually orthogonal between the ovsf code of the DPCCH of the data flow correspondence on each antenna.
Be that example describes with two antennas in the present embodiment, concrete second acquisition unit 702 obtain the ovsf code of the DPCCH of the data flow correspondence on each antenna in second antenna sets 703 mode can for:
The ovsf code of choosing the DPCCH of the data flow on first antenna is Cch, 256,0;
The ovsf code of choosing the DPCCH of the data flow on second antenna is Cch, 256, and x, x are the integer from 1 to 128, the preferred value of x is 2,3,4,5,7,8,9,15,16,17,127.
In the present embodiment, after second acquisition unit 702 has been determined the ovsf code of DPCCH of the data flow correspondence on each antenna, second antenna sets 703 can use DPDCH or E-DPDCH to send data flow on the antenna separately, use DPCCH to send the pilot frequency sequence of the data flow correspondence on the antenna separately, the concrete process that sends is those skilled in the art's a common practise, does not limit herein.
In the present embodiment, second acquisition unit 702 is the ovsf code that the data flow on the different antenna is selected mutually orthogonal DPCCH, therefore what can be independent of each other according to the DPCCH pilot frequency sequence of the data flow on the different antennae equally carries out channel estimating and path search, thereby can realize the multi-antenna transmitting transmission scheme in the WCDMA system.
Introduce the upstream data dispensing device in the embodiment of the invention below, see also Fig. 8, another embodiment of the data sending device in the embodiment of the invention comprises:
The 3rd division unit 801 is used for same user's data flow to be sent is divided into according to the number of antenna the data flow of corresponding number;
Scrambling unit 802, be used to the DPCCH code channel of data flow on each antenna and data flow correspondence to multiply by the pseudo random sequence of scrambler correspondence by chip-level, the pseudo random sequence that the DPCCH code channel of data flow on each antenna and data flow correspondence is taken advantage of is identical, the pseudo random sequence difference that the DPCCH code channel of data flow on the different antennae and data flow correspondence is taken advantage of;
For ease of understanding, with a concrete application scenarios above-mentioned data sending device is described below:
When the user need send data by many antenna datas dispensing device, the 3rd division unit 801 got access to this user's data flow to be sent, and will this data flow to be sent be divided into the data flow of corresponding number according to the number of antenna.
In the present embodiment, after 801 pairs of data flow to be sent of the 3rd division unit are divided, the data flow in 802 pairs of third antenna groups 803 of scrambling unit on each antenna and the DPCCH code channel of data flow correspondence multiply by the pseudo random sequence of scrambler correspondence respectively by chip-level, the pseudo random sequence that the DPCCH code channel of data flow on each antenna and data flow correspondence is taken advantage of is identical, the pseudo random sequence difference that the DPCCH code channel of data flow on the different antennae and data flow correspondence is taken advantage of.
In the present embodiment, data flow in 802 pairs of third antenna groups 803 of scrambling unit on each antenna and DPCCH code channel all multiply by the pseudo random sequence of scrambler correspondence by chip-level after, third antenna group 803 can use DPDCH or E-DPDCH to send data flow after multiply by pseudo random sequence on the antenna separately on each antenna, the pilot frequency sequence that DPCCH after the pseudo random sequence sends the data flow correspondence on the antenna is separately multiply by in use, the concrete process that sends is those skilled in the art's a common practise, does not limit herein.
In the present embodiment, scrambling unit 802 multiply by after the pseudo random sequence of scrambler correspondence by chip-level respectively for the data flow on the different antennas and DPCCH code channel, can so that the interference between the different data flow by Gauss's albefaction, it is minimum to be that interference between each antenna drops to, thereby can realize the multi-antenna transmitting transmission scheme in the WCDMA system.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
More than a kind of pilot sequence generating method provided by the present invention, data transmission method for uplink and device are described in detail, for one of ordinary skill in the art, thought according to the embodiment of the invention, part in specific embodiments and applications all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (14)
1. a method for transmitting uplink data is characterized in that, comprising:
Same user's data flow to be sent is divided into the data flow of corresponding number according to the number of antenna;
Obtain the pilot frequency sequence of the data flow correspondence on each antenna, mutually orthogonal between the pilot frequency sequence of the data flow correspondence on described each antenna;
On each antenna, use Dedicated Physical Data Channel or enhanced dedicated physical data channel to send data flow on the antenna separately, use Dedicated Physical Control Channel to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
2. method according to claim 1, it is characterized in that, described pilot frequency sequence is that table 3 is to shown in any one form of table 6, pilot frequency sequence when wherein table 3 is depicted as frequency pilot sign and is respectively 4 and 6, pilot frequency sequence when table 4 is depicted as frequency pilot sign and is 8, DPCCH pilot frequency sequence when the pilot frequency sequence when table 5 is depicted as frequency pilot sign and is respectively 3 and 5, table 6 are depicted as frequency pilot sign and are 7;
Table 3
Table 4
Table 5
Table 6
3. method according to claim 1, it is characterized in that, described pilot frequency sequence is that table 7 is to shown in any one form of table 10, pilot frequency sequence when wherein table 7 or 9 is depicted as frequency pilot sign and is respectively 4 and 6, pilot frequency sequence when table 8 or 10 is depicted as frequency pilot sign and is 8, frequency pilot sign is that the pilot frequency sequence of odd number N is the pilot frequency sequence after deletion the 1st row or last are listed as in the pilot frequency sequence of frequency pilot sign when being even number N+1
Table 7
Table 8
Table 9
Table 10
4. a method for transmitting uplink data is characterized in that, comprising:
Same user's data flow to be sent is divided into the data flow of corresponding number according to the number of antenna;
Obtain the orthogonal variable spreading factor factor sign indicating number of the Dedicated Physical Control Channel of the data flow correspondence on each antenna, mutually orthogonal and satisfy minimum cubic metric value principle between the orthogonal variable spreading factor factor sign indicating number of the Dedicated Physical Control Channel of the data flow correspondence on described each antenna;
On each antenna, use Dedicated Physical Data Channel or enhanced dedicated physical data channel to send data flow on the antenna separately, use Dedicated Physical Control Channel to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
5. method according to claim 4 is characterized in that, the described orthogonal variable spreading factor factor sign indicating number that obtains the Dedicated Physical Control Channel of the data flow correspondence on each antenna comprises:
The orthogonal variable spreading factor factor sign indicating number of choosing the Dedicated Physical Control Channel of the data flow correspondence on first antenna is Cch, 256,0;
The orthogonal variable spreading factor factor sign indicating number of choosing the Dedicated Physical Control Channel of the data flow correspondence on second antenna is Cch, 256, and x, described x are the integer from 1 to 128.
6. method according to claim 5 is characterized in that,
The described orthogonal variable spreading factor factor sign indicating number of choosing the Dedicated Physical Control Channel of second antenna is Cch, 256, and x, described x are 2,3,4,5, any one in 7,8,9,15,16,17 or 127.
7. a method for transmitting uplink data is characterized in that, comprising:
Same user's data flow to be sent is divided into the data flow of corresponding number according to the number of antenna;
Multiply by the pseudo random sequence of scrambler correspondence by chip-level for the Dedicated Physical Control Channel code channel of data flow on each antenna and data flow correspondence, the pseudo random sequence that the Dedicated Physical Control Channel code channel of data flow on each antenna and data flow correspondence is taken advantage of is identical, the pseudo random sequence difference that the Dedicated Physical Control Channel code channel of data flow on the different antennae and data flow correspondence is taken advantage of;
On each antenna, use Dedicated Physical Data Channel or enhanced dedicated physical data channel to send to multiply by on the antenna separately the data flow after the pseudo random sequence, use the Dedicated Physical Control Channel that multiply by after the pseudo random sequence to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
8. a upstream data dispensing device is characterized in that, comprising:
First division unit is used for same user's data flow to be sent is divided into according to the number of antenna the data flow of corresponding number;
First acquiring unit is used to obtain the pilot frequency sequence of the data flow correspondence on each antenna, mutually orthogonal between the pilot frequency sequence of the data flow correspondence on described each antenna;
First antenna sets is used to use Dedicated Physical Data Channel or enhanced dedicated physical data channel to send data flow on the antenna separately, uses Dedicated Physical Control Channel to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
9. device according to claim 8, it is characterized in that, described pilot frequency sequence is that table 3 is to shown in any one form of table 6, pilot frequency sequence when wherein table 3 is depicted as frequency pilot sign and is respectively 4 and 6, pilot frequency sequence when table 4 is depicted as frequency pilot sign and is 8, DPCCH pilot frequency sequence when the pilot frequency sequence when table 5 is depicted as frequency pilot sign and is respectively 3 and 5, table 6 are depicted as frequency pilot sign and are 7;
Table 3
Table 4
Table 5
Table 6
10. device according to claim 8, it is characterized in that, described pilot frequency sequence is that table 7 is to shown in any one form of table 10, pilot frequency sequence when wherein table 7 or 9 is depicted as frequency pilot sign and is respectively 4 and 6, pilot frequency sequence when table 8 or 10 is depicted as frequency pilot sign and is 8, frequency pilot sign is that the pilot frequency sequence of odd number N is the pilot frequency sequence after deletion the 1st row or last are listed as in the pilot frequency sequence of frequency pilot sign when being even number N+1
Table 7
Table 8
Table 9
Table 10
11. a upstream data dispensing device is characterized in that, comprising:
Second division unit is used for same user's data flow to be sent is divided into according to the number of antenna the data flow of corresponding number;
Second acquisition unit, be used to obtain the orthogonal variable spreading factor factor sign indicating number of the Dedicated Physical Control Channel of the data flow correspondence on each antenna, mutually orthogonal and satisfy minimum cubic metric value principle between the orthogonal variable spreading factor factor sign indicating number of the Dedicated Physical Control Channel of the data flow correspondence on described each antenna;
Second antenna sets is used to use Dedicated Physical Data Channel or enhanced dedicated physical data channel to send data flow on the antenna separately, uses Dedicated Physical Control Channel to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
12. device according to claim 11 is characterized in that, described second acquisition unit is further used for:
The orthogonal variable spreading factor factor sign indicating number of choosing the Dedicated Physical Control Channel of the data flow correspondence on first antenna is Cch, 256,0;
The orthogonal variable spreading factor factor sign indicating number of choosing the Dedicated Physical Control Channel of the data flow correspondence on second antenna is Cch, 256, and x, described x are the integer from 1 to 128.
13. device according to claim 12 is characterized in that,
Described orthogonal variable spreading factor factor sign indicating number Cch, 256, x, x are 2,3,4,5, any one in 7,8,9,15,16,17 or 127.
14. a data sending device is characterized in that, comprising:
The 3rd division unit is used for same user's data flow to be sent is divided into according to the number of antenna the data flow of corresponding number;
Scrambling unit, the pseudo random sequence that is used to data flow on each antenna and Dedicated Physical Control Channel code channel to multiply by the scrambler correspondence by chip-level, the pseudo random sequence that the Dedicated Physical Control Channel code channel of data flow on each antenna and data flow correspondence is taken advantage of is identical, the pseudo random sequence difference that the Dedicated Physical Control Channel code channel of data flow on the different antennae and data flow correspondence is taken advantage of;
The third antenna group, be used to use Dedicated Physical Data Channel or enhanced dedicated physical data channel to send to multiply by on the antenna separately the data flow after the pseudo random sequence, use the Dedicated Physical Control Channel that multiply by after the pseudo random sequence to send the pilot frequency sequence of the data flow correspondence on the antenna separately.
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| CN2009101512063A CN101931447A (en) | 2009-06-22 | 2009-06-22 | Uplink data transmission method and device |
| PCT/CN2010/073656 WO2010148945A1 (en) | 2009-06-22 | 2010-06-08 | Method and device for sending uplink data |
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| CN2009101512063A CN101931447A (en) | 2009-06-22 | 2009-06-22 | Uplink data transmission method and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103209058A (en) * | 2013-04-11 | 2013-07-17 | 东莞宇龙通信科技有限公司 | Terminal, base station and communication data transmission method |
| CN105637827A (en) * | 2014-03-25 | 2016-06-01 | 华为技术有限公司 | Method and device for inserting and extracting pilot sequences |
| CN106411489A (en) * | 2011-08-12 | 2017-02-15 | 交互数字专利控股公司 | WTRU and the method for the WTRU |
| US10735228B2 (en) | 2014-01-29 | 2020-08-04 | Huawei Technologies Co., Ltd. | Uplink access method, apparatus, and system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081416C (en) * | 1999-01-04 | 2002-03-20 | 北京邮电大学 | Frame structure suitable for wide-band code division multiple access signal transmission |
| CN1146164C (en) * | 2001-07-14 | 2004-04-14 | 华为技术有限公司 | Method for emitting diversity code via common pilot channel |
| GB2384664B (en) * | 2002-01-25 | 2004-12-22 | Toshiba Res Europ Ltd | Receiver processing systems |
| CN1914870B (en) * | 2003-12-05 | 2010-10-13 | 高通股份有限公司 | Multi-antenna system to simultaneous support of MISO and MIMO receivers |
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2009
- 2009-06-22 CN CN2009101512063A patent/CN101931447A/en active Pending
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2010
- 2010-06-08 WO PCT/CN2010/073656 patent/WO2010148945A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411489A (en) * | 2011-08-12 | 2017-02-15 | 交互数字专利控股公司 | WTRU and the method for the WTRU |
| US10623160B2 (en) | 2011-08-12 | 2020-04-14 | Interdigital Patent Holdings, Inc. | Reference signal communication in a wireless network |
| CN103209058A (en) * | 2013-04-11 | 2013-07-17 | 东莞宇龙通信科技有限公司 | Terminal, base station and communication data transmission method |
| CN103209058B (en) * | 2013-04-11 | 2017-06-20 | 东莞宇龙通信科技有限公司 | Terminal, base station and communication data transmission method |
| US10735228B2 (en) | 2014-01-29 | 2020-08-04 | Huawei Technologies Co., Ltd. | Uplink access method, apparatus, and system |
| CN105637827A (en) * | 2014-03-25 | 2016-06-01 | 华为技术有限公司 | Method and device for inserting and extracting pilot sequences |
| US10135589B2 (en) | 2014-03-25 | 2018-11-20 | Huawei Technologies Co., Ltd. | Inserting and extracting pilot sequences |
| CN105637827B (en) * | 2014-03-25 | 2019-08-20 | 华为技术有限公司 | Insertion, extracting method and the equipment of pilot frequency sequence |
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| WO2010148945A1 (en) | 2010-12-29 |
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