CN102075274A - Multi-antenna parameter configuration method and device for sounding reference signals (SRSs) - Google Patents

Multi-antenna parameter configuration method and device for sounding reference signals (SRSs) Download PDF

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Publication number
CN102075274A
CN102075274A CN2011100341657A CN201110034165A CN102075274A CN 102075274 A CN102075274 A CN 102075274A CN 2011100341657 A CN2011100341657 A CN 2011100341657A CN 201110034165 A CN201110034165 A CN 201110034165A CN 102075274 A CN102075274 A CN 102075274A
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antenna port
srs
frequency comb
parameter
cyclic shift
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CN102075274B (en
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左志松
王瑜新
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2011/085151 priority patent/WO2012103774A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The invention discloses a multi-antenna parameter configuration method and a multi-antenna parameter configuration device for sounding reference signals (SRSs), which aim to solve the problem that multi-antenna SRS parameter configuration cannot be determined in the prior art. According to the invention, an e-node-B (eNB) informs user equipment (UE) of transmitting the parameters of the SRSs through a high layer signaling, the UE determines the parameter of the SRS transmitted by every antenna port according to the number of the antenna ports which transmit the SRSs and a preset mapping relation, the circulated displacement of every antenna part is distributed at equal intervals, and the maximal value of the interval is taken; when the number of the antenna ports which transmit the SRSs is 4, the frequency combs of the antenna port 0 and the antenna port 1 are kTC; and the frequency combs of the antenna port 2 and the antenna port 3 which correspond to a part of circulated displacement information are kTC, and the frequency combs of the antenna port 2 and the antenna port 3 which correspond to the rest circulated displacement information are 1-kTC. By adopting the technical scheme, a terminal can determine the parameter of the SRS transmitted by every antenna port according to the configured implicit mapping relation, so that the signaling overhead can be saved, and the configuration flexibility can be ensured.

Description

A kind of collocation method of many antenna parameters of measuring reference signals and device
Technical field
The present invention relates to the communications field, especially relate to a kind of measuring reference signals (Sounding Reference Signal, the collocation method of many antenna parameters SRS) and device.
Background technology
Long Term Evolution (Long Term Evolution, LTE) uplink physical channel of system comprises Physical Random Access Channel (Physical Random Access Channel, PRACH), Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH), Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH).In LTE, (Physical Downlink Shared Channel PDCCH) is used to carry the uplink and downlink schedule information to Physical Downlink Control Channel, and uplink power control information.(e-Node-B, (User Equipment, UE), perhaps terminal equipment is accepted the configuration of high-rise (higher layers), is also referred to as by high-level signaling and comes configuration UE eNB) can to pass through the Downlink Control Information configurating terminal device in the base station.(Downlink Control Information, DCI) form (format) is divided into DCI format 0,1,1A, 1B, 1C, 1D, 2,2A, 3,3A etc. to Downlink Control Information.
SRS is used for measuring radio channel information (Channel State Information, signal CSI) between a kind of terminal equipment and base station.In long evolving system, UE regularly sends uplink SRS according to the parameters such as bandwidth, frequency domain position, sequence cyclic shift, cycle and sub-frame offset of eNB indication on last data symbol that sends subframe.ENB judges the up CSI of UE according to the SRS that receives, and carries out operations such as frequency domain selection scheduling, closed power control according to the CSI that obtains.
In the LTE system, the SRS sequence that UE sends is by to the YITIAOGEN sequence
Figure BDA0000046432700000011
Carry out in time domain that cyclic shift α obtains.To carrying out different cyclic shift α with the YITIAOGEN sequence, just can access different SRS sequences, and mutually orthogonal between these SRS sequences that obtain, therefore, can use to different UE these SRS sequence allocation, to realize the code division multiple access between UE.In the LTE system, the SRS sequence definition 8 cyclic shift α, provide by following formula (1):
α = 2 π n SRS cs 8 ... formula (1)
Wherein,
Figure BDA0000046432700000022
Signaling by 3bit is indicated, and is respectively 0,1,2,3,4,5,6 and 7.That is to say that under same running time-frequency resource, the UE in the sub-district has 8 available sign indicating number resources, eNB can dispose 8 UE at most and send SRS simultaneously on identical running time-frequency resource.Formula (1) can be regarded as the SRS sequence uniformly-spaced is divided into 8 parts in time domain, but because the SRS sequence length is 12 multiple, so the minimum length of SRS sequence is 24.
In the LTE system, the frequency domain bandwidth of SRS adopts tree to be configured.The corresponding tree structure of each SRS band width configuration (SRS bandwidth configuration), the SRS bandwidth (SRS-Bandwidth) of top (or being called ground floor) is to maximum SRS bandwidth that should the SRS band width configuration, or is called the SRS bandwidth range.UE is according to the indication of the signaling of base station, calculate the SRS bandwidth of self after, the top signaling frequency domain position n that sends according to eNB again RRCDetermine that self sends the frequency domain initial position of SRS.Fig. 1 is the different n of the distribution of prior art RRCUE send the frequency domain initial position schematic diagram of SRS, as shown in Figure 1, distributed different n RRCUE will send SRS in the zones of different of sub-district SRS bandwidth, wherein, UE1 is according to n RRC=0 determines to send the frequency initial position of SRS, and UE2 is according to n RRC=3 determine to send the frequency initial position of SRS, and UE3 is according to n RRC=4 determine to send the frequency initial position of SRS, and UE4 is according to n RRC=6 determine to send the frequency initial position of SRS.
The employed sequence of SRS is selected from the demodulation pilot frequency sequence group, when the SRS of UE bandwidth be 4 Resource Block (Resource Block, in the time of RB), using length is that the computer of 2 RB generates (Computer Generated, sequence CG); When the SRS of UE bandwidth during, use the Zadoff-Chu sequence of corresponding length greater than 4 RB.
In addition, in same SRS bandwidth, the subcarrier of SRS (sub-carrier) is to place at interval, that is to say, pectinate texture is adopted in the transmission of SRS, the quantity of the frequency comb in the LTE system (frequency comb) is 2, and also (RePetition Factor is 2 RPF) corresponding to the repeat factor value of time domain.Fig. 2 is the pectinate texture schematic diagram of the SRS of prior art, as shown in Figure 2, when each UE sends SRS, only uses in two frequency comb, comb=0 or comb=1.Like this, UE only uses the frequency domain index to send SRS as the subcarrier of even number or odd number according to the frequency comb comb position indication of the top signaling of 1 bit.This pectinate texture allows more UE to send SRS in same SRS bandwidth.
In same SRS bandwidth, a plurality of UE can use different cyclic shifts on same frequency comb, send SRS by code division multiplexing then, also can two UE on different frequency comb, send SRS by frequency division multiplexing.For instance, in the LTE system, in certain SRS bandwidth (4 RB), send the UE of SRS, operable cyclic shift has 8, operable frequency comb is 2, and UE always has 16 resources that can be used to send SRS thus, that is to say, in this SRS bandwidth, can send 16 SRS simultaneously at most.Owing in the LTE system, do not support uplink single user multiple-input and multiple-output (Single User Multiple Input Multiple Output, SU-MI MO), UE constantly can only have an antenna transmission SRS at each, so a UE only needs a SRS resource, therefore, in above-mentioned SRS bandwidth, system is multiplexing 16 UE at most simultaneously.
(LTE-Advanced, LTE-A) system is the evolution system of future generation of LTE system to senior LTE, at up support SU-MIMO, and can use 4 antennas as up transmitting antenna at most.That is to say that UE can send SRS simultaneously at synchronization on many antennas, and eNB need estimate state on every channel according to the SRS that receives on the every antenna.
In the research of existing LTE-A, propose: send SRS except keeping LTE original cycle (periodic), in order to improve the utilance of SRS resource, improve the flexibility of scheduling of resource, can also send SRS by Downlink Control Information or high-level signaling configuration UE aperiodic (aperiodic).Therefore SRS has two kinds triggering type (trigger type), is cycle SRS based on the triggering type 0 of high-level signaling, is SRS aperiodic based on the Class1 of DCI format.When many antenna transmission of configuration UE SRS, how to determine the SRS parameter of every antenna, can save signaling consumption, can guarantee configuration flexibility again, be a problem to be solved.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of many antenna parameters collocation method and device of measuring reference signals, is used for solving the problem that prior art can't be determined many antennas SRS parameter configuration.
For achieving the above object, technical scheme of the present invention is achieved in that
Many antenna parameters collocation method of a kind of measuring reference signals (SRS),
The base station sends the parameter of SRS by high-level signaling informing user terminal (UE), described SRS be cycle SRS or aperiodic SRS, the parameter of described transmission SRS comprises cyclic shift With frequency comb k TC
After the parameter of the transmission SRS of UE acquisition base station notice, reach the parameter that default mapping relations are determined each antenna port transmission SRS according to the antenna port quantity that sends SRS.
Further, when the quantity of the antenna port that sends SRS greater than 1 the time, described default mapping relations comprise:
Cyclic shift in the parameter of each antenna port transmission SRS is spacedly distributed, and described interval equals 8 divided by the antenna port quantity that send SRS.
Further, when the antenna port quantity that sends SRS was 4, described default mapping relations comprised:
The frequency comb of antenna port 0 and antenna port 1 all is k TC
The part circular shift information
Figure BDA0000046432700000042
The corresponding antenna port 2 and the frequency comb of antenna port 3 are k TC, remaining circular shift information
Figure BDA0000046432700000043
The corresponding antenna port 2 and the frequency comb of antenna port 3 are 1-k TC
Further, when the antenna port quantity that sends SRS was 1, described default mapping relations were specially:
The cyclic shift of antenna port 0
Figure BDA0000046432700000044
Frequency comb
Further, when the antenna port quantity that sends SRS was 2, described default mapping relations were specially:
The cyclic shift of antenna port 0
Figure BDA0000046432700000046
Frequency comb
Figure BDA0000046432700000047
The cyclic shift of antenna port 1
Figure BDA0000046432700000048
Frequency comb
Figure BDA0000046432700000049
Based on the specific embodiment of the invention, when the antenna port quantity that sends SRS was 4, described default mapping relations were specially:
The cyclic shift of antenna port 0
Figure BDA00000464327000000410
The frequency comb of antenna port 0
Figure BDA00000464327000000411
The cyclic shift of antenna port 1
Figure BDA00000464327000000412
Antenna port 1 frequency comb
Figure BDA00000464327000000413
The cyclic shift of antenna port 2
Figure BDA00000464327000000414
Antenna port 2 frequency comb are by relation of plane is definite down:
When
Figure BDA0000046432700000051
When being certain integer of 0 to 3, antenna port 2 frequency comb
Figure BDA0000046432700000052
When
Figure BDA0000046432700000053
When being certain integer of 4 to 7, antenna port 2 frequency comb
Figure BDA0000046432700000054
Perhaps,
When
Figure BDA0000046432700000055
When being certain integer of 0 to 3, antenna port 2 frequency comb
Figure BDA0000046432700000056
When
Figure BDA0000046432700000057
When being certain integer of 4 to 7, antenna port 2 frequency comb
Perhaps,
When
Figure BDA0000046432700000059
During for even number, antenna port 2 frequency comb
Figure BDA00000464327000000510
When
Figure BDA00000464327000000511
During for odd number, antenna port 2 frequency comb
Perhaps,
When
Figure BDA00000464327000000513
During for even number, antenna port 2 frequency comb
Figure BDA00000464327000000514
When
Figure BDA00000464327000000515
During for odd number, antenna port 2 frequency comb
Figure BDA00000464327000000516
The cyclic shift of antenna port 3
Figure BDA00000464327000000517
Antenna port 3 frequency comb are determined with reference to definite mode of the frequency comb of antenna port 2.
Based on the specific embodiment of the invention, when the antenna port quantity that sends SRS was 4, described default mapping relations were specially:
The cyclic shift of antenna port 0
Figure BDA00000464327000000518
The frequency comb of antenna port 0
Figure BDA00000464327000000519
The cyclic shift of antenna port 2
Figure BDA00000464327000000520
Antenna port 2 frequency comb
Figure BDA00000464327000000521
The cyclic shift of antenna port 1
Figure BDA00000464327000000522
Antenna port 1 frequency comb is by relation of plane is definite down:
When
Figure BDA00000464327000000523
When being certain integer of 0 to 3, antenna port 1 frequency comb
Figure BDA00000464327000000524
When
Figure BDA00000464327000000525
When being certain integer of 4 to 7, antenna port 1 frequency comb
Perhaps,
When
Figure BDA00000464327000000527
When being certain integer of 0 to 3, antenna port 1 frequency comb
Figure BDA00000464327000000528
When When being certain integer of 4 to 7, antenna port 1 frequency comb
Figure BDA00000464327000000530
Perhaps,
When
Figure BDA0000046432700000061
During for even number, antenna port 1 frequency comb
Figure BDA0000046432700000062
When
Figure BDA0000046432700000063
During for odd number, antenna port 1 frequency comb
Figure BDA0000046432700000064
Perhaps,
When
Figure BDA0000046432700000065
During for even number, antenna port 1 frequency comb
Figure BDA0000046432700000066
When
Figure BDA0000046432700000067
During for odd number, antenna port 1 frequency comb
Figure BDA0000046432700000068
The cyclic shift of antenna port 3
Figure BDA0000046432700000069
Antenna port 3 frequency comb are determined with reference to definite mode of the frequency comb of antenna port 1.
Based on said method embodiment, the present invention also proposes a kind of definite device of many antenna parameters of measuring reference signals, and this device comprises:
Receiver module is used to receive the parameter of the transmission SRS that the base station issues by high-level signaling, described SRS be cycle SRS or aperiodic SRS, the parameter of described transmission SRS comprises cyclic shift
Figure BDA00000464327000000610
With frequency comb k TC
Determination module is used for the parameter of the transmission SRS that issues based on the base station, and the antenna port quantity and the default mapping relations that send SRS according to UE determine that each antenna port sends the parameter of SRS.
When the antenna port quantity that sends SRS was 1, the SRS parameter that described determination module issues the base station was defined as the SRS parameter of antenna port 0;
When the quantity of the antenna port that sends SRS greater than 1 the time, described determination module determines that in the following way each antenna port sends the parameter of SRS:
Cyclic shift in the parameter of each antenna port transmission SRS is spacedly distributed, and described interval equals 8 divided by the antenna port quantity that send SRS.
When the antenna port quantity that sends SRS was 4, described determination module determines that in the following way each antenna port sends the parameter of SRS: the frequency comb of antenna port 0 and antenna port 1 all was k TC
The part circular shift information The corresponding antenna port 2 and the frequency comb of antenna port 3 are k TC, remaining circular shift information
Figure BDA00000464327000000612
The corresponding antenna port 2 and the frequency comb of antenna port 3 are 1-k TC
Adopt technical scheme of the present invention, terminal can determine that each antenna port sends the parameter of SRS according to the implicit mapping relations of configuration, can save signaling consumption, can guarantee configuration flexibility again.
Description of drawings
Fig. 1 is the different n of the distribution of prior art RRCUE send the frequency domain initial position schematic diagram of SRS;
Fig. 2 is the pectinate texture schematic diagram of the SRS of prior art;
Fig. 3 is the flow chart of many antenna parameters collocation method of measuring reference signals of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 3 is the flow chart of many antenna parameters collocation method of measuring reference signals provided by the invention, and this method comprises:
The parameter that high-level signaling informing user terminal UE sends SRS is passed through in step 301, base station, and the parameter of described transmission SRS comprises cyclic shift
Figure BDA0000046432700000071
With frequency comb k TC(or being called transmissionComb);
Described SRS comprises cycle SRS, aperiodic SRS.
After the parameter of the transmission SRS of step 302, UE acquisition base station notice, reach the parameter that default mapping relations are determined each antenna port transmission SRS according to the antenna port quantity that sends SRS.
Preferably, the cyclic shift between each antenna port is spacedly distributed, and maximization at interval, promptly equals 8 at interval divided by the antenna port quantity that sends SRS; When the antenna port quantity of SRS was 1 or 2, the frequency comb of each antenna port all was k TCWhen the antenna port quantity of SRS was 4, the frequency comb of antenna port 0 and antenna port 1 all was k TC, the part circular shift information
Figure BDA0000046432700000072
The corresponding antenna port 2 and the frequency comb of antenna port 3 are k TC, all the other circular shift information The corresponding antenna port 2 and the frequency comb of antenna port 3 are 1-k TC
The following examples are represented the implicit mapping of the cyclic shift and the frequency comb of each antenna port for the form that adopts form.Wherein, the N in the form pExpression sends the antenna port quantity of SRS.
Method embodiment
Among this embodiment, the base station is by the parameter of high-level signaling notice UE transmission SRS, and the parameter of described transmission SRS comprises cyclic shift
Figure BDA0000046432700000074
With frequency comb k TCUE determines that according to antenna port quantity that sends SRS and default mapping relations each antenna port sends the parameter of SRS after obtaining the parameter of transmission SRS of base station notice, concrete mapping relations respectively based on table 1 to table 10,10 kinds of mapping modes can be arranged.
Mode 1:
The implicit mapping table 1 of the cyclic shift of each antenna port of table 1 and frequency comb
Mode 2:
The implicit mapping table 2 of the cyclic shift of each antenna port of table 2 and frequency comb
Figure BDA0000046432700000082
Mode 3:
The implicit mapping table 3 of the cyclic shift of each antenna port of table 3 and frequency comb
Figure BDA0000046432700000083
Figure BDA0000046432700000091
Mode 4:
The implicit mapping table 4 of the cyclic shift of each antenna port of table 4 and frequency comb
Mode 5:
The implicit mapping table 5 of the cyclic shift of each antenna port of table 5 and frequency comb
Figure BDA0000046432700000093
Figure BDA0000046432700000101
Mode 6:
The implicit mapping table 6 of the cyclic shift of each antenna port of table 6 and frequency comb
Figure BDA0000046432700000102
Mode 7:
The implicit mapping table 7 of the cyclic shift of each antenna port of table 7 and frequency comb
Figure BDA0000046432700000103
Mode 8:
The implicit mapping table 8 of the cyclic shift of each antenna port of table 8 and frequency comb
Figure BDA0000046432700000104
Mode 9:
The implicit mapping table 9 of the cyclic shift of each antenna port of table 9 and frequency comb
Figure BDA0000046432700000112
Mode 10:
The implicit mapping table 10 of the cyclic shift of each antenna port of table 10 and frequency comb
Figure BDA0000046432700000113
Figure BDA0000046432700000121
Wherein, N pBe the antenna port quantity of transmission SRS,
Figure BDA0000046432700000122
Be the antenna end slogan,
Figure BDA0000046432700000123
And k TCBe respectively the base station and send to the cyclic shift in the parameter of transmission SRS of UE and the value of frequency comb.
To table 9, when the antenna port quantity that sends SRS was 4, the method for SRS parameter that UE determines respectively to send the antenna port of SRS was specially based on table 1:
(1) when the antenna port quantity that sends SRS is 1:
The cyclic shift of antenna port 0
Figure BDA0000046432700000124
Frequency comb
Figure BDA0000046432700000125
(2) when the antenna port quantity that sends SRS is 2:
The cyclic shift of antenna port 0
Figure BDA0000046432700000126
Frequency comb
Figure BDA0000046432700000127
The cyclic shift of antenna port 1
Figure BDA0000046432700000128
Frequency comb
(3) when the antenna port quantity that sends SRS is 4:
The cyclic shift of antenna port 0
Figure BDA00000464327000001210
Frequency comb
Figure BDA00000464327000001211
The cyclic shift of antenna port 1
Figure BDA00000464327000001212
Frequency comb
Figure BDA00000464327000001213
Antenna port 2 cyclic shifts
Figure BDA00000464327000001214
The frequency comb of antenna port 2 is by relation of plane is definite down:
● when When being certain integer of 0 to 3, k TC 2 = k TC ;
● when
Figure BDA00000464327000001217
When being certain integer of 4 to 7, k TC 2 = 1 - k TC ;
Perhaps,
● when
Figure BDA00000464327000001219
When being certain integer of 0 to 3, k TC 2 = 1 - k TC ;
● when
Figure BDA00000464327000001221
When being certain integer of 4 to 7, k TC 2 = k TC ;
Perhaps,
When
Figure BDA0000046432700000131
During for even number, k TC 2 = k TC ;
When
Figure BDA0000046432700000133
During for odd number, k TC 2 = 1 - k TC ;
Perhaps,
When
Figure BDA0000046432700000135
During for even number, k TC 2 = 1 - k TC ;
When
Figure BDA0000046432700000137
During for odd number, k TC 2 = k TC .
The cyclic shift of antenna port 3
Figure BDA0000046432700000139
Definite mode of the frequency comb of antenna port 3 is with antenna port 2.
Based on table 10, in another preferred embodiment of the present invention, when the antenna port quantity that sends SRS was 4, UE can adopt the definite SRS parameter that respectively sends the antenna port of SRS of following method:
The cyclic shift of antenna port 0
Figure BDA00000464327000001310
The frequency comb of antenna port 0
The cyclic shift of antenna port 2 Antenna port 2 frequency comb
Figure BDA00000464327000001313
The cyclic shift of antenna port 1
Figure BDA00000464327000001314
Antenna port 1 frequency comb is by relation of plane is definite down:
When When being certain integer of 0 to 3, antenna port 1 frequency comb
Figure BDA00000464327000001316
When
Figure BDA00000464327000001317
When being certain integer of 4 to 7, antenna port 1 frequency comb
Figure BDA00000464327000001318
Perhaps,
When
Figure BDA00000464327000001319
When being certain integer of 0 to 3, antenna port 1 frequency comb
Figure BDA00000464327000001320
When
Figure BDA00000464327000001321
When being certain integer of 4 to 7, antenna port 1 frequency comb
Figure BDA00000464327000001322
Perhaps,
When
Figure BDA00000464327000001323
During for even number, antenna port 1 frequency comb
Figure BDA00000464327000001324
When
Figure BDA00000464327000001325
During for odd number, antenna port 1 frequency comb
Perhaps,
When During for even number, antenna port 1 frequency comb
When
Figure BDA00000464327000001329
During for odd number, antenna port 1 frequency comb
Figure BDA00000464327000001330
The cyclic shift of antenna port 3
Figure BDA0000046432700000141
Definite mode of the frequency comb of antenna port 3 is with antenna port 1.
The present invention is based on the mapping mode of table 1-table 10, can obtain the cyclic shift of each port
Figure BDA0000046432700000142
With frequency comb k TCBetween implicit mapping relations, promptly just know the cyclic shift of the SRS of UE all of the port by the signaling of an indication cyclic shift
Figure BDA0000046432700000143
With frequency comb k TCValue.Thereby saved unnecessary signaling consumption.Also reduced the complexity that UE realizes.
Wherein the mapping mode taked of table 10 can also obtain the resource of the resource reuse 4 port UE of 2 port UE, and promptly the SRS resource used of the UE of one 4 port constitutes the resource of two 2 port UE.Thereby reach the flexible dispatching of different number of ports UE.
Device embodiment
Based on said method embodiment, the present invention proposes a kind of definite device of many antenna parameters of measuring reference signals, this device is positioned at UE, comprising:
Receiver module is used to receive the parameter of the transmission SRS that the base station issues by high-level signaling, and the parameter of described transmission SRS comprises cyclic shift
Figure BDA0000046432700000144
With frequency comb k TC
Determination module, the parameter that is used for the transmission SRS that issues based on the base station, the antenna port quantity and the default mapping relations that send SRS according to UE determine that each antenna port sends the parameter of SRS, concrete mapping relations respectively based on the table 1 among the said method embodiment to table 10,10 kinds of mapping modes can be arranged.
Because apparatus of the present invention embodiment is based on said method embodiment, each module of therefore installing among the embodiment all is to establish for each steps flow chart among the realization said method embodiment, and for saving space, the content identical with said method embodiment repeats no more herein.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.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 (10)

1. many antenna parameters collocation method of a measuring reference signals (SRS), it is characterized in that, the base station sends the parameter of SRS by high-level signaling informing user terminal (UE), described SRS be cycle SRS or aperiodic SRS, the parameter of described transmission SRS comprises cyclic shift
Figure FDA0000046432690000011
With frequency comb k TC
After the parameter of the transmission SRS of UE acquisition base station notice, reach the parameter that default mapping relations are determined each antenna port transmission SRS according to the antenna port quantity that sends SRS.
2. method according to claim 1 is characterized in that, when the quantity of the antenna port that sends SRS greater than 1 the time, described default mapping relations comprise:
Cyclic shift in the parameter of each antenna port transmission SRS is spacedly distributed, and described interval equals 8 divided by the antenna port quantity that send SRS.
3. method according to claim 1 and 2 is characterized in that, when the antenna port quantity that sends SRS was 4, described default mapping relations comprised:
The frequency comb of antenna port 0 and antenna port 1 all is k TC
The part circular shift information The corresponding antenna port 2 and the frequency comb of antenna port 3 are k TC, remaining circular shift information
Figure FDA0000046432690000013
The corresponding antenna port 2 and the frequency comb of antenna port 3 are 1-k TC
4. method according to claim 1 is characterized in that, when the antenna port quantity that sends SRS was 1, described default mapping relations were specially:
The cyclic shift of antenna port 0 Frequency comb
Figure FDA0000046432690000015
5. method according to claim 1 and 2 is characterized in that, when the antenna port quantity that sends SRS was 2, described default mapping relations were specially:
The cyclic shift of antenna port 0
Figure FDA0000046432690000016
Frequency comb
The cyclic shift of antenna port 1
Figure FDA0000046432690000018
Frequency comb
Figure FDA0000046432690000019
6. method according to claim 1 and 2 is characterized in that, when the antenna port quantity that sends SRS was 4, described default mapping relations were specially:
The cyclic shift of antenna port 0
Figure FDA00000464326900000110
The frequency comb of antenna port 0
Figure FDA00000464326900000111
The cyclic shift of antenna port 1
Figure FDA00000464326900000112
Antenna port 1 frequency comb
Figure FDA00000464326900000113
The cyclic shift of antenna port 2
Figure FDA0000046432690000021
Antenna port 2 frequency comb are by relation of plane is definite down:
When
Figure FDA0000046432690000022
When being certain integer of 0 to 3, antenna port 2 frequency comb
Figure FDA0000046432690000023
When
Figure FDA0000046432690000024
When being certain integer of 4 to 7, antenna port 2 frequency comb
Figure FDA0000046432690000025
Perhaps,
When
Figure FDA0000046432690000026
When being certain integer of 0 to 3, antenna port 2 frequency comb
Figure FDA0000046432690000027
When When being certain integer of 4 to 7, antenna port 2 frequency comb
Figure FDA0000046432690000029
Perhaps,
When
Figure FDA00000464326900000210
During for even number, antenna port 2 frequency comb
Figure FDA00000464326900000211
When
Figure FDA00000464326900000212
During for odd number, antenna port 2 frequency comb
Figure FDA00000464326900000213
Perhaps,
When During for even number, antenna port 2 frequency comb
Figure FDA00000464326900000215
When
Figure FDA00000464326900000216
During for odd number, antenna port 2 frequency comb
The cyclic shift of antenna port 3 Antenna port 3 frequency comb are determined with reference to definite mode of the frequency comb of antenna port 2.
7. method according to claim 1 and 2 is characterized in that, when the antenna port quantity that sends SRS was 4, described default mapping relations were specially:
The cyclic shift of antenna port 0
Figure FDA00000464326900000219
The frequency comb of antenna port 0
Figure FDA00000464326900000220
The cyclic shift of antenna port 2
Figure FDA00000464326900000221
Antenna port 2 frequency comb
Figure FDA00000464326900000222
The cyclic shift of antenna port 1
Figure FDA00000464326900000223
Antenna port 1 frequency comb is by relation of plane is definite down:
When
Figure FDA00000464326900000224
When being certain integer of 0 to 3, antenna port 1 frequency comb
When
Figure FDA00000464326900000226
When being certain integer of 4 to 7, antenna port 1 frequency comb
Figure FDA00000464326900000227
Perhaps,
When
Figure FDA00000464326900000228
When being certain integer of 0 to 3, antenna port 1 frequency comb
When
Figure FDA0000046432690000031
When being certain integer of 4 to 7, antenna port 1 frequency comb
Figure FDA0000046432690000032
Perhaps,
When
Figure FDA0000046432690000033
During for even number, antenna port 1 frequency comb
Figure FDA0000046432690000034
When
Figure FDA0000046432690000035
During for odd number, antenna port 1 frequency comb
Figure FDA0000046432690000036
Perhaps,
When
Figure FDA0000046432690000037
During for even number, antenna port 1 frequency comb
Figure FDA0000046432690000038
When During for odd number, antenna port 1 frequency comb
Figure FDA00000464326900000310
The cyclic shift of antenna port 3
Figure FDA00000464326900000311
Antenna port 3 frequency comb are determined with reference to definite mode of the frequency comb of antenna port 1.
8. definite device of many antenna parameters of a measuring reference signals is characterized in that, this device comprises:
Receiver module is used to receive the parameter of the transmission SRS that the base station issues by high-level signaling, described SRS be cycle SRS or aperiodic SRS, the parameter of described transmission SRS comprises cyclic shift
Figure FDA00000464326900000312
With frequency comb k TC
Determination module is used for the parameter of the transmission SRS that issues based on the base station, and the antenna port quantity and the default mapping relations that send SRS according to UE determine that each antenna port sends the parameter of SRS.
9. device according to claim 8 is characterized in that,
When the antenna port quantity that sends SRS was 1, the SRS parameter that described determination module issues the base station was defined as the SRS parameter of antenna port 0;
When the quantity of the antenna port that sends SRS greater than 1 the time, described determination module determines that in the following way each antenna port sends the parameter of SRS:
Cyclic shift in the parameter of each antenna port transmission SRS is spacedly distributed, and described interval equals 8 divided by the antenna port quantity that send SRS.
10. device according to claim 8 is characterized in that, when the antenna port quantity that sends SRS was 4, described determination module determined that in the following way each antenna port sends the parameter of SRS:
The frequency comb of antenna port 0 and antenna port 1 all is k TC
The part circular shift information
Figure FDA00000464326900000313
The corresponding antenna port 2 and the frequency comb of antenna port 3 are k TC, remaining circular shift information
Figure FDA00000464326900000314
The corresponding antenna port 2 and the frequency comb of antenna port 3 are 1-k TC
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