CN102340801B - Method for determining reference signal (RS) position and equipment thereof - Google Patents
Method for determining reference signal (RS) position and equipment thereof Download PDFInfo
- Publication number
- CN102340801B CN102340801B CN201010231048.5A CN201010231048A CN102340801B CN 102340801 B CN102340801 B CN 102340801B CN 201010231048 A CN201010231048 A CN 201010231048A CN 102340801 B CN102340801 B CN 102340801B
- Authority
- CN
- China
- Prior art keywords
- csi
- pattern
- sub frame
- descending sub
- sending
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
Embodiments of the invention disclose a method for determining reference signal (RS) position and equipment thereof. The method is characterized by: determining downlink subframe which sends channel state information (CSI)-RS and a pattern which sends the CSI-RS according to a number of the downlink subframe which can be used to send the CSI-RS, the number of the pattern which can be used to send the CSI-RS and a configuration parameter. By using the method in the embodiments of the invention, interference of time-frequency domain resources can be avoided and extra signaling costs are not needed. According to the configuration parameter, the selected pattern which can be used to send the CSI-RS and the downlink subframe which can be used to send the CSI-RS can be implicitly indicated.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of reference signal method for determining position and equipment.
Background technology
Along with the development of communication network, reference signal (Reference Signal, hereinafter to be referred as: RS) effect in communication network is more and more important.RS claims again pilot signal, is a kind of known signal that is offered receiving terminal by transmitting terminal, for carrying out channel estimating or channel detection.Wherein, LTE R8 (Long TermEvolution Release 8, Long Term Evolution the 8th version) in pilot signal comprise common pilot signal (Common Reference Signal, hereinafter to be referred as: CRS) and special pilot frequency for user signal (UE-specific Reference Signal, hereinafter to be referred as: DRS).
As the backward evolution of LTE R8 system, LTE-Advanced (senior Long Term Evolution) system need to define DMRS (the Demodulated Reference Signal that supports 8 stream (Layer) transmission for user, demodulated pilot signal), for the demodulation of data symbol in PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel).In addition, in order to support high-order mimo (Multiple InputMultiple Output, multiple-input and multiple-output) CQI (Channel QualityIndicator under 8Tx antenna configuration, CQI) detect, LTE-Advanced system also needs for LTE-Advanced user's downlink channel condition information (Channel State Information, hereinafter to be referred as: CSI) measure definition a kind of new pilot reference signal: CSI-RS, CSI-RS is cell-specific (Cell-specific), its function class is similar to the public guide frequency CRS in LTE R8, maximum demand is supported 8 logic ports (8 CSI-RS Ports).
Concrete, at collaboration type multicast system (Coordinated Multiple-Point, hereinafter to be referred as: CoMP), the CSI-RS that same CoMP measurement set (measuring set) Zhong Ge community sends requires mutually orthogonal, avoids each other the interference of time-frequency domain resources.
But realizing in process of the present invention, inventor finds at least to exist in prior art following problem:
In CoMP system, a coordinated allocation can not be done within CoMP measurement set, to avoid the interference of time-frequency domain resources.
Summary of the invention
The embodiment of the present invention provides a kind of reference signal method for determining position and equipment, to determine the descending sub frame that sends CSI-RS and the pattern that sends CSI-RS, and avoids the interference of time-frequency domain resources.
In order to achieve the above object, the embodiment of the present invention has proposed a kind of reference signal method for determining position, comprises the following steps:
According to can be used for sending the descending sub frame number of CSI-RS, the pattern that can be used for sending the pattern number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter and send CSI-RS.
According to can be used for sending the descending sub frame number of CSI-RS, the pattern that can be used for sending the pattern number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter and send CSI-RS, comprising:
Determine according to described descending sub frame number and the configuration parameter that can be used for sending CSI-RS the descending sub frame that sends CSI-RS;
According to the described pattern that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for the definite CSI-RS of transmission of pattern number that sends CSI-RS.
Determine according to described descending sub frame number and the configuration parameter that can be used for sending CSI-RS the descending sub frame that sends CSI-RS, comprising:
According to the described descending sub frame number that can be used for sending CSI-RS, all communities corresponding configuration parameter are divided into the group of respective numbers, Mei Zu community is corresponding to the descending sub frame of a transmission CSI-RS, and Gai Zuzhong community is used this descending sub frame to send CSI-RS.
Determine according to described descending sub frame number and the configuration parameter that can be used for sending CSI-RS the descending sub frame that sends CSI-RS, comprising:
According to formula: the descending sub frame=mod (configuration parameter can be used for sending the descending sub frame number of CSI-RS) that sends CSI-RS calculates the descending sub frame that sends CSI-RS, and wherein, mod represents complementation.
According to the described pattern that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for the definite CSI-RS of transmission of pattern number that sends CSI-RS, comprising:
According to the described descending sub frame number that can be used for sending CSI-RS, all communities corresponding configuration parameter are divided into the group of respective numbers, and be divided into the set of respective numbers according to the described pattern number Jiang Meizunei community that can be used for sending CSI-RS, Mei Zu community is corresponding to the descending sub frame of a transmission CSI-RS, the interior community of set of every group is corresponding to the pattern of a transmission CSI-RS, and the set Zhong community of this group is used this descending sub frame and this pattern to send CSI-RS.
According to the described pattern that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for the definite CSI-RS of transmission of pattern number that sends CSI-RS, comprising:
The first intermediate parameters of each community in calculating each group according to formula: the first intermediate parameters=floor (configuration parameter/can be used for sending the descending sub frame number of CSI-RS); Wherein, floor represents downward rounding operation;
According to formula: the pattern=mod (the first intermediate parameters can be used for sending the pattern number of CSI-RS) that sends CSI-RS sends the pattern of CSI-RS in calculating each group.
According to can be used for sending the descending sub frame number of CSI-RS, the pattern that can be used for sending the pattern number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter and send CSI-RS, comprising:
Determine according to described pattern number and the configuration parameter that can be used for sending CSI-RS the pattern that sends described CSI-RS;
According to the described descending sub frame that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for the definite described CSI-RS of transmission of pattern number that sends CSI-RS.
Determine according to the pattern number of described transmission CSI-RS and configuration parameter the pattern that sends described CSI-RS, comprising:
According to the described pattern number that can be used for sending CSI-RS, all communities corresponding configuration parameter are divided into the group of respective numbers, Mei Zu community is corresponding to the pattern of a transmission CSI-RS, and Gai Zuzhong community is used this pattern to send CSI-RS.
Determine according to described pattern number and the configuration parameter that can be used for sending CSI-RS the pattern that sends described CSI-RS, comprising:
According to formula: the pattern=mod (configuration parameter can be used for sending the pattern number of CSI-RS) that sends CSI-RS calculates the pattern that sends CSI-RS.
According to the described descending sub frame that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for the definite described CSI-RS of transmission of pattern number that sends CSI-RS, comprising:
According to the described pattern number that can be used for sending CSI-RS, all communities corresponding configuration parameter are divided into the group of respective numbers, and be divided into the set of respective numbers according to the described descending sub frame number Jiang Meizunei community that can be used for sending CSI-RS, Mei Zu community is corresponding to the pattern of a transmission CSI-RS, the interior community of set of every group is corresponding to the descending sub frame of a transmission CSI-RS, and the set Zhong community of this group is used this descending sub frame and this pattern to send CSI-RS.
According to the described descending sub frame that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for the definite described CSI-RS of transmission of pattern number that sends CSI-RS, comprising:
The second intermediate parameters of each community in calculating each group according to formula: the second intermediate parameters=floor (configuration parameter/can be used for sending the pattern number of CSI-RS);
According to formula: the descending sub frame=mod (the second intermediate parameters can be used for sending the descending sub frame number of CSI-RS) that sends described CSI-RS sends the descending sub frame of described CSI-RS in calculating each group.
According to can be used for sending the descending sub frame number of CSI-RS, the pattern that can be used for sending the pattern number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter and send CSI-RS, also comprise afterwards:
Network equipment sends CSI-RS according to the described transmission descending sub frame of CSI-RS and the pattern of described transmission CSI-RS to subscriber equipment.
According to can be used for sending the descending sub frame number of CSI-RS, the pattern that can be used for sending the pattern number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter and send CSI-RS, also comprise afterwards:
Subscriber equipment receives the CSI-RS from network equipment according to the described transmission descending sub frame of CSI-RS and the pattern of described transmission CSI-RS.
A kind of reference signal position locking equipment really, comprising:
Determination module, can be used for sending the descending sub frame number of CSI-RS, the pattern that can be used for sending the pattern number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter and send CSI-RS for basis.
Described determination module comprises:
First determines submodule, for can be used for sending the descending sub frame number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter described in basis;
Second determines submodule, determines for the pattern number that can be used for sending descending sub frame number, the configuration parameter of CSI-RS described in basis and can be used for sending CSI-RS the pattern that sends CSI-RS.
Described first determines submodule, specifically for can be used for sending the descending sub frame number of CSI-RS described in basis, all communities corresponding configuration parameter are divided into the group of respective numbers, Mei Zu community is corresponding to the descending sub frame of a transmission CSI-RS, and Gai Zuzhong community is used this descending sub frame to send CSI-RS.
Described first determines submodule, be further used for according to formula: the descending sub frame=mod (configuration parameter that sends CSI-RS, can be used for sending the descending sub frame number of CSI-RS) calculate the descending sub frame that sends CSI-RS, wherein, mod represents complementation.
Described second determines submodule, specifically for can be used for sending the descending sub frame number of CSI-RS described in basis, all communities corresponding configuration parameter are divided into the group of respective numbers, and be divided into the set of respective numbers according to the described pattern number Jiang Meizunei community that can be used for sending CSI-RS, Mei Zu community is corresponding to the descending sub frame of a transmission CSI-RS, the interior community of set of every group is corresponding to the pattern of a transmission CSI-RS, and the set Zhong community of this group is used this descending sub frame and this pattern to send CSI-RS.
Described second determines submodule, is further used for according to formula: the first intermediate parameters=floor (configuration parameter/can be used for sending the descending sub frame number of CSI-RS) calculate each group in the first intermediate parameters of each community; Wherein, floor represents downward rounding operation;
According to formula: the pattern=mod (the first intermediate parameters can be used for sending the pattern number of CSI-RS) that sends CSI-RS sends the pattern of CSI-RS in calculating each group.
Described determination module comprises:
The 3rd determines submodule, for can be used for sending the pattern number of CSI-RS and the pattern of the definite described CSI-RS of transmission of configuration parameter described in basis;
The 4th determines submodule, determines for the pattern number that can be used for sending descending sub frame number, the configuration parameter of CSI-RS described in basis and can be used for sending CSI-RS the descending sub frame that sends described CSI-RS.
The described the 3rd determines submodule, specifically for can be used for sending the pattern number of CSI-RS described in basis, all communities corresponding configuration parameter are divided into the group of respective numbers, Mei Zu community is corresponding to the pattern of a transmission CSI-RS, and Gai Zuzhong community is used this pattern to send CSI-RS.
The described the 3rd determines submodule, is further used for according to formula: the pattern=mod (configuration parameter can be used for sending the pattern number of CSI-RS) that sends CSI-RS calculates the pattern that sends CSI-RS.
The described the 4th determines submodule, specifically for can be used for sending the pattern number of CSI-RS described in basis, all communities corresponding configuration parameter are divided into the group of respective numbers, and be divided into the set of respective numbers according to the described descending sub frame number Jiang Meizunei community that can be used for sending CSI-RS, Mei Zu community is corresponding to the pattern of a transmission CSI-RS, the interior community of set of every group is corresponding to the descending sub frame of a transmission CSI-RS, and the set Zhong community of this group is used this descending sub frame and this pattern to send CSI-RS.
The described the 4th determines submodule, is further used for according to formula: the second intermediate parameters=floor (configuration parameter/can be used for sending the pattern number of CSI-RS) calculate each group in the second intermediate parameters of each community;
According to formula: the descending sub frame=mod (the second intermediate parameters can be used for sending the descending sub frame number of CSI-RS) that sends described CSI-RS sends the descending sub frame of described CSI-RS in calculating each group.
When described equipment is during as network equipment, also comprise:
Sending module, for sending CSI-RS according to the described transmission descending sub frame of CSI-RS and the pattern of described transmission CSI-RS to subscriber equipment.
When described equipment is during as subscriber equipment, also comprise:
Receiver module, for receiving the CSI-RS from network equipment according to the described transmission descending sub frame of CSI-RS and the pattern of described transmission CSI-RS.
Compared with prior art, the present invention has the following advantages:
Can be used for sending the descending sub frame number of CSI-RS, the pattern number that can be used for sending CSI-RS and configuration parameter by use and determine the descending sub frame that sends CSI-RS and the pattern that sends CSI-RS, can avoid the interference of time-frequency domain resources, and without extra signaling consumption, according to configuration parameter, the pattern of the transmission CSI-RS that instruction that can implicit expression is chosen and send the descending sub frame of CSI-RS.
Brief description of the drawings
In order to be illustrated more clearly in the present invention or technical scheme of the prior art, to the accompanying drawing of required use in the present invention or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only accompanying drawings more of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagrames of the orthogonal CSI-RS of multiplexing many groups in the PRB of DL subframe in prior art;
Fig. 2 is a kind of reference signal method for determining position flow chart that the embodiment of the present invention one proposes;
Fig. 3 is a kind of reference signal method for determining position flow chart that the embodiment of the present invention two proposes;
Fig. 4 is a kind of reference signal position structure chart of locking equipment really that the embodiment of the present invention proposes.
Embodiment
For fear of the interference of time-frequency domain resources, the CSI-RS that needs same CoMP measurement setZhong Ge community to send is mutually orthogonal, and orthogonal in order to realize the CSI-RS of different districts, the method that can adopt comprises:
(1) Subframe (subframe) offset (skew):, in CoMP measurement set, send CSI-RS according to the CSI-RS pattern (pattern) of different cell (community) in different descending sub frame (DLsubframes).
(2) OFDM symbol (symbol) shift (transfer): in CoMP measurement set, the CSI-RS of different cell is by TDM (Time Division Mulitiplex, time division multiplexing) mode, occupy OFDM time-domain resource different in same DL subframe and send.
(3) Subcarrier-shift: in CoMP measurement set, the CSI-RS of different cell is by FDM (Frequency Division Multiplexed, frequency division multiplexing) mode, occupy the different sub-carrier resources of same DL subframe frequency domain and send.
In prior art, in the radio frames of 1 10ms, may comprise the transmission of multiple descending sub frames (DLsubframe) for CSI-RS.Wherein, comprise 10 descending sub frames in FDD system 10ms, the descending sub frame number comprising in TDD system 10ms depends on the concrete configuration of uplink and downlink timeslot, and this TDD system uplink and downlink timeslot configuring condition is as shown in table 1.
Table 1
In addition, in the Physical Resource Block (Physical Resource Block, PRB) of a DL subframe, may design the orthogonal CSI-RS pattern of many groups, and to organize orthogonal CSI-RS pattern not overlapping mutually each other more.The multiplexing schematic diagrames of organizing orthogonal CSI-RS pattern in the PRB of a DL subframe as shown in Figure 1 more.
Wherein, Fig. 1 is the example that comprises the orthogonal CSI-RS pattern of many groups in a PRB of a DL subframe, in Fig. 1,1 of same type, 2 ... 8 represent one group of CSI-RS pattern that supports 8 antenna ports, and this resource can be distributed to Yi Ge community and send CSI-RS.
6 groups are dissimilar 1,2 ... 8 represent the CSI-RSpattern of 6 groups of 8 mutually orthogonal antenna ports in PRB, can distribute to 6 adjacent communities within CoMP measurement set for sending CSI-RS, to realize the orthogonal of minizone CSI-RS.
Based on above-mentioned situation, for fear of the interference of inter-cell (in community) CSI-RS, in the each community of how to confirm, concrete which descending sub frame (DL Subframe) that uses sends CSI-RS, and in DL subframe, specifically which CSI-RS pattern to send CSI-RS with, just become the problem that needs solution.
For the problems referred to above, the embodiment of the present invention provides a kind of reference signal method for determining position and equipment, specifically which descending sub frame to send CSI-RS with to determine in each community, and definitely which CSI-RS pattern to send CSI-RS with.The method that the embodiment of the present invention provides, realize simple, and without extra signaling consumption.
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, obviously, described is only a part of the present invention, instead of whole.Based on the present invention, those of ordinary skill in the art, not making the every other invention obtaining under creative work prerequisite, belong to the scope of protection of the invention.
A kind of reference signal method for determining position that the embodiment of the present invention proposes, in the embodiment of the present invention, this reference signal method for determining position is for the cooperative multicast system in existing LTE-A, wherein, the method is applicable to FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) system and TDD (time Division Duplex, time division duplex) system.
In the embodiment of the present invention, introduced 3 parameters, this parameter is respectively:
(1) subframe_reuse_factor, can for example, for sending the number (, in 10ms can for sending the number of descending sub frame of CSI-RS) of descending sub frame of CSI-RS.Wherein, TDD descending sub frame number will be subject to the impact of UL-DL configuration, but this subframe_reuse_factor is at least 1.
(2) PRB_reuse_factor, can for example, for sending the pattern number (the CSI-RS reuse factor that, can support in each PRB) of CSI-RS.Be the quantity of the orthogonal CSI-RS of support in subframe, this PRB_reuse_factor is relevant to concrete CSI-RS Pattern design.Wherein, no matter how the CSI-RS pattern in FDD system or TDD system designs, and this PRB_reuse_factor is at least 1.
(3) Configured_Parameter, this parameter is a configurable parameter, may be existing parameter (for example, the Cell_ID of community, or Cell_ID+Other_Parameter, wherein, this Other_Parameter can be subframe numbering, system parameters etc.), or some parameters of upper strata (high layer) definition.
Embodiment 1
Based on above-mentioned parameter, the embodiment of the present invention one proposes a kind of reference signal method for determining position, CSI-RS pattern and subframe_reuse_factor, the PRB_reuse_factor that each cell can be chosen bind design, in the embodiment of the present invention one, send the DL subframe of CSI-RS first to determine, then determine within subframe, to use which concrete pattern to describe for example.
As shown in Figure 2, this reference signal method for determining position comprises the following steps:
In the embodiment of the present invention, CSI_RS_subframe=mod (Configured_Parameter, subframe_reuse_factor),, after having determined parameters C onfigured_Parameter and subframe_reuse_factor, can determine CSI_RS_subframe.Wherein, mod represents complementation.
It should be noted that; in the embodiment of the present invention, be not limited to and use formula mod (Configured_Parameter; subframe_reuse_factor) determine CSI_RS_subframe; all modes that each community can be divided into subframe_reuse_factor group (according to Configured_Parameter and subframe_reuse_factor by all cell group) all within embodiment of the present invention protection range, explanation no longer in detail in the embodiment of the present invention.
Taking application scenarios as subframe_reuse_factor=4, PRB_reuse_factor=6, Configured_Parameter is Cell_ID, current total 100Ge community, Cell_ID=1,2,, 3,4,5 ...., 100 describe for example.
In the time of Cell_ID=1, CSI_RS_subframe=mod (Configured_Parameter, subframe_reuse_factor)=1; In the time of Cell_ID=2, CSI_RS_subframe=2; In the time of Cell_ID=3, CSI_RS_subframe=3; In the time of Cell_ID=4, CSI_RS_subframe=0; In the time of Cell_ID=5, CSI_RS_subframe=1, by that analogy, works as Cell_ID=1, and 5,9,13,17 ... ... 97 o'clock, CSI_RS_subframe was 1; Work as Cell_ID=2,6,10,14,18 ... ... 98 o'clock, CSI_RS_subframe was 2; Work as Cell_ID=3,7,11,15,19 ... ... 99 o'clock, CSI_RS_subframe was 3; Work as Cell_ID=4,8,12,16,20 ... 100 o'clock, CSI_RS_subframe was 0.
Can find out, according to the value of CSI_RS_subframe, each community can be corresponded in each Group marking off according to the value of subframe_reuse_factor, the value of each CSI_RS_subframe is mapped in a descending sub frame that can send CSI-RS unique.
Concrete, because the number of the descending sub frame that can send CSI-RS in 10ms is 4, need 100 cell_id to correspond in subframe_reuse_factor=4 group, wherein:
Group 1:CSI_RS_subframe=1, CSI-RS sends at the 1st available DL subframe, now, and Cell_ID=1,5,9,13,17 ... ... 97;
Group 2:CSI_RS_subframe=2, CSI-RS sends at the 2nd available DL subframe, now, and Cell_ID=2,6,10,14,18 ... ... 98;
Group 3:CSI_RS_subframe=3, CSI-RS sends at the 3rd available DL subframe, now, and Cell_ID=3,7,11,15,19 ... ... 99;
Group 4, CSI_RS_subframe=0, CSI-RS sends at the 4th available DL subframe, now, and Cell_ID=4,8,12,16,20 ... 100.
A=floor (Configured_Parameter/subframe_reuse_factor), after having determined parameters C onfigured_Parameter and subframe_reuse_factor, can determine A.Wherein, floor represents downward rounding operation.
Under above-mentioned application scenarios, for Group 1, Cell_ID=1,5,9,13,17 ... ... 97, A=0,1,2,3,4 ... ... 24; For Group 2, Cell_ID=2,6,10,14,18 ... ... 98, A=0,1,2,3,4 ... ... 24; For Group3, Cell_ID=3,7,11,15,19 ... ... 99, A=0,1,2,3,4 ... ... 24; For Group 4, Cell_ID=4,8,12,16,20 ... 100, A=1,2,3,4,5.........25.
In the embodiment of the present invention, CSI_RS_pattern=mod (A, PRB_reuse_factor), after having determined parameter A and PRB_reuse_factor, can determine CSI_RS_pattern.Wherein, mod represents complementation.
It should be noted that in the embodiment of the present invention and be not limited to and use formula mod (A, PRB_reuse_factor) to determine CSI_RS_pattern, explanation no longer in detail in the embodiment of the present invention.
Under this application scene, PRB_reuse_factor=6, for Group 1, Cell_ID=1,5,9,13,17 ... ... 97, A=0,1,2,3,4 ... ... 24; CSI_RS_pattern=0,1,2,3,4,5,0,1 ... .., 0;
For Group 2, Cell_ID=2,6,10,14,18 ... ... 98, A=0,1,2,3,4 ... ... 24; CSI_RS_pattern=0,1,2,3,4,5,0,1 ... .0;
For Group 3, Cell_ID=3,7,11,15,19 ... ... 99, A=0,1,2,3,4 ... ... 24; CSI_RS_pattern=0,1,2,3,4,5,0,1 ... .0;
For Group 4, Cell_ID=4,8,12,16,20 ... 100, A=1,2,3,4,5.........25; CSI_RS_pattern=1,2,3,4,5,0,1,2....1.
Can find out, under this application scene, for community 1, by the 1st available DL subframe, and the 6th can with CSI-RS pattern send CSI-RS; For community 2, by the 2nd available DL subframe, and the 6th can with CSI-RS pattern send CSI-RS; For community 3, by the 3rd available DL subframe, and the 6th can with CSI-RS pattern send CSI-RS; For community 4, by the 4th available DL subframe, and the 1st can with CSI-RS pattern send CSI-RS; For community 5, by the 1st available DL subframe, and the 1st can with CSI-RS pattern send CSI-RS; By that analogy, in the embodiment of the present invention, repeat no longer in detail.
Embodiment 2
Based on above-mentioned parameter, the embodiment of the present invention two proposes a kind of reference signal method for determining position, CSI-RS pattern and subframe_reuse_factor, the PRB_reuse_factor that each cell can be chosen bind design, in the embodiment of the present invention two, first to determine within subframe and to use that concrete pattern, then determine that the DL_subframe of transmission CSI-RS is that example describes.
As shown in Figure 3, this reference signal method for determining position comprises the following steps:
In the embodiment of the present invention, CSI_RS_pattern=mod (Configured_Parameter, PRB_reuse_factor),, after having determined parameters C onfigured_Parameter and PRB_reuse_factor, can determine CSI_RS_pattern.Wherein, mod represents complementation.
It should be noted that; in the embodiment of the present invention, be not limited to and use formula mod (Configured_Parameter; PRB_reuse_factor) determine CSI_RS_pattern; all modes that each community can be divided into PRB_reuse_factor group (according to Configured_Parameter and PRB_reuse_factor by all cell group) all within embodiment of the present invention protection range, explanation no longer in detail in the embodiment of the present invention.
Taking application scenarios as subframe_reuse_factor=4, PRB_reuse_factor=3, Configured_Parameter is Cell_ID, current total 100Ge community, Cell_ID=1,2,, 3,4,5 ...., 100 describe for example.
In the time of Cell_ID=1, CSI_RS_pattern=1; In the time of Cell_ID=2, CSI_RS_pattern=2; In the time of Cell_ID=3, CSI_RS_pattern=0; In the time of Cell_ID=4, CSI_RS_pattern=1; By that analogy, work as Cell_ID=1,4,7,10,13 ... ... 100 o'clock, CSI_RS_pattern was 1; Work as Cell_ID=2,5,8,11,14 ... ... 98 o'clock, CSI_RS_pattern was 2; Work as Cell_ID=3,6,9,12,15 ... ... 99 o'clock, CSI_RS_pattern was 0.
Can find out, according to the value of CSI_RS_pattern, each community can be corresponded in each Group marking off according to the value of PRB_reuse_factor, the value of each CSI_RS_pattern is by unique interior unique 1 Pattern of PRB that is mapped to.
Concrete, 100 cell_id need to be corresponded in PRB_reuse_factor=3 group, wherein:
Group 1:CSI_RS_pattern=1, the 1st CSI-RS pattern chosen in respective cell, now, and Cell_ID=1,4,7,10,13 ... ... 100;
Group 2:CSI_RS_pattern=2, the 2nd CSI-RS pattern chosen in community, respective cell, now, and Cell_ID=2,5,8,11,14 ... ... 98;
Group 3:CSI_RS_pattern=0, the 3rd CSI-RS pattern chosen in respective cell, now, and Cell_ID=3,6,9,12,15 ... ... 99.
A=floor (Configured_Parameter/PRB_reuse_factor), after having determined parameters C onfigured_Parameter and PRB_reuse_factor, can determine A.
Under above-mentioned application scenarios, for Group 1, Cell_ID=1,4,7,10,13 ... ... 100, A=0,1,2,3,4 ... ... 33; For Group 2, Cell_ID=2,5,8,11,14 ... ... 98, A=0,1,2,3,4 ... ... 32; For Group3, Cell_ID=3,6,9,12,15 ... ... 99; A=1,2,3,4 ... ... 33.
In the embodiment of the present invention, CSI_RS_subframe=mod (A, subframe_reuse_factor), after having determined parameter A and subframe_reuse_factor, can determine CSI_RS_subframe (being that CSI-RS Pattern specifically sends in which DL subframe).
It should be noted that in the embodiment of the present invention and be not limited to and use formula mod (A, subframe_reuse_factor) to determine CSI_RS_subframe, explanation no longer in detail in the embodiment of the present invention.
Under this application scene, subframe_reuse_factor=4, for Group 1, Cell_ID=1,4,7,10,13 ... ... 100, A=0,1,2,3,4 ... ... 33; CSI_RS_subframe=0,1,2,3,0,1 ..., 1;
For Group 2, Cell_ID=2,5,8,1l, 14 ... ... 98; A=0,1,2,3,4 ... ... 32; CSI_RS_subframe=0,1,2,3,0,1, ..., 0;
For Group 3, Cell_ID=3,6,9,12,15 ... ... 99; A=1,2,3,4 ... ... 33; CSI-RS_subframe=1,2,3,0,1,2 ... .., 1.
Can find out, under this application scene, for community 1, will choose the 1st available CSI-RSpattern, and the 4th can with DL subframe send CSI-RS; For community 2, will choose the 2nd available CSI-RS pattern, and the 4th can with DL subframe send CSI-RS; For community 3, will choose the 3rd available CSI-RS pattern, and the 1st can with DL subframe send CSI-RS; For community 4, will choose the 1st available CSI-RSpattern, and the 1st can with DL subframe send CSI-RS; By that analogy, in the embodiment of the present invention, repeat no longer in detail.
In sum, which which by the invention described above embodiment mono-or the embodiment of the present invention two, can determine by using descending sub frame (sending the descending sub frame of CSI-RS) and CSI-RS pattern (sending the pattern of CSI-RS) to send CSI-RS.
Further, according to the pattern of the descending sub frame of this definite transmission CSI-RS and transmission CSI-RS, at network side, network equipment need to send CSI-RS (sending to subscriber equipment) according to the pattern of the descending sub frame of definite transmission CSI-RS and transmission CSI-RS, and in user equipment side, need to receive CSI-RS (receiving from network equipment) according to the pattern of the descending sub frame of definite transmission CSI-RS and transmission CSI-RS.
Concrete, after definite above-mentioned parameter subframe_reuse_factor, PRB_reuse_factor and Configured_Parameter (this parameter can according to actual conditions arbitrary disposition), network side can determine to send CSI-RS with which descending sub frame and which pattern according to above-mentioned parameter, and sends CSI-RS at definite descending sub frame and CSI-RS pattern.
Subscriber equipment needs pre-stored above-mentioned parameter subframe_reuse_factor, PRB_reuse_factor and Configured_Parameter (can after receiving the relevant information of network side, store, or, directly be stored on subscriber equipment), and determine to send CSI-RS with which descending sub frame and which CSI-RS pattern according to above-mentioned parameter, and receive CSI-RS at definite descending sub frame and CSI-RS pattern.
The method visible, the application of the invention embodiment provides, has the following advantages:
Can be used for sending the descending sub frame number of CSI-RS, the pattern number that can be used for sending CSI-RS and configuration parameter by use and determine the descending sub frame that sends CSI-RS and the pattern that sends CSI-RS, can avoid the interference of time-frequency domain resources, and without extra signaling consumption, according to configuration parameter, the pattern of the transmission CSI-RS that instruction that can implicit expression is chosen and send the descending sub frame of CSI-RS.
In addition, the configurable large as far as possible reuse factor of CSI-RS that in CoMP measurement set, neighbor cell sends, comprise the PRB reuse factor in subframe reuse factor and subframe, implementation procedure is simple, determine the parameter of CSI-RS pattern for community, Configured_Parameter can configure, and may be existing parameter, or a parameter of upper strata (high layer) definition.
Based on same inventive concept, a kind of reference signal position locking equipment really that the embodiment of the present invention also proposes, as shown in Figure 4, comprising:
Determination module 10, can be used for sending the descending sub frame number of CSI-RS, the pattern that can be used for sending the pattern number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter and send CSI-RS for basis.
Described determination module 10 comprises:
First determines submodule 11, for can be used for sending the descending sub frame number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter described in basis;
Second determines submodule 12, determines for the pattern number that can be used for sending descending sub frame number, the configuration parameter of CSI-RS described in basis and can be used for sending CSI-RS the pattern that sends CSI-RS.
Described first determines submodule 11, specifically for can be used for sending the descending sub frame number of CSI-RS described in basis, all communities corresponding configuration parameter are divided into the group of respective numbers, Mei Zu community is corresponding to the descending sub frame of a transmission CSI-RS, and Gai Zuzhong community is used this descending sub frame to send CSI-RS.
Described first determines submodule 11, be further used for according to formula: the descending sub frame=mod (configuration parameter that sends CSI-RS, can be used for sending the descending sub frame number of CSI-RS) calculate the descending sub frame that sends CSI-RS, wherein, mod represents complementation.
Described second determines submodule 12, specifically for can be used for sending the descending sub frame number of CSI-RS described in basis, all communities corresponding configuration parameter are divided into the group of respective numbers, and be divided into the set of respective numbers according to the described pattern number Jiang Meizunei community that can be used for sending CSI-RS, Mei Zu community is corresponding to the descending sub frame of a transmission CSI-RS, the interior community of set of every group is corresponding to the pattern of a transmission CSI-RS, and the set Zhong community of this group is used this descending sub frame and this pattern to send CSI-RS.
Described second determines submodule 12, is further used for according to formula: the first intermediate parameters=floor (configuration parameter/can be used for sending the descending sub frame number of CSI-RS) calculate each group in the first intermediate parameters of each community; Wherein, floor represents downward rounding operation;
According to formula: the pattern=mod (the first intermediate parameters can be used for sending the pattern number of CSI-RS) that sends CSI-RS sends the pattern of CSI-RS in calculating each group.
Described determination module 10 comprises:
The 3rd determines submodule 13, for can be used for sending the pattern number of CSI-RS and the pattern of the definite described CSI-RS of transmission of configuration parameter described in basis;
The 4th determines submodule 14, determines for the pattern number that can be used for sending descending sub frame number, the configuration parameter of CSI-RS described in basis and can be used for sending CSI-RS the descending sub frame that sends described CSI-RS.
The described the 3rd determines submodule 13, specifically for can be used for sending the pattern number of CSI-RS described in basis, all communities corresponding configuration parameter are divided into the group of respective numbers, Mei Zu community is corresponding to the pattern of a transmission CSI-RS, and Gai Zuzhong community is used this pattern to send CSI-RS.
The described the 3rd determines submodule 13, is further used for according to formula: the pattern=mod (configuration parameter can be used for sending the pattern number of CSI-RS) that sends CSI-RS calculates the pattern that sends CSI-RS.
The described the 4th determines submodule 14, specifically for can be used for sending the pattern number of CSI-RS described in basis, all communities corresponding configuration parameter are divided into the group of respective numbers, and be divided into the set of respective numbers according to the described descending sub frame number Jiang Meizunei community that can be used for sending CSI-RS, Mei Zu community is corresponding to the pattern of a transmission CSI-RS, the interior community of set of every group is corresponding to the descending sub frame of a transmission CSI-RS, and the set Zhong community of this group is used this descending sub frame and this pattern to send CSI-RS.
The described the 4th determines submodule 14, is further used for according to formula: the second intermediate parameters=floor (configuration parameter/can be used for sending the pattern number of CSI-RS) calculate each group in the second intermediate parameters of each community;
According to formula: the descending sub frame=mod (the second intermediate parameters can be used for sending the descending sub frame number of CSI-RS) that sends described CSI-RS sends the descending sub frame of described CSI-RS in calculating each group.
In the embodiment of the present invention, when described equipment is during as network equipment, also comprise: sending module, for sending CSI-RS according to the described transmission descending sub frame of CSI-RS and the pattern of described transmission CSI-RS to subscriber equipment.
When described equipment is during as subscriber equipment, also comprise: receiver module, for receiving the CSI-RS from network equipment according to the described transmission descending sub frame of CSI-RS and the pattern of described transmission CSI-RS.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into multiple submodules.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, and the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise that some instructions are in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) carry out method of the present invention.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into multiple submodules.
The invention described above sequence number, just to describing, does not represent the quality of embodiment.
Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (14)
1. a reference signal method for determining position, is characterized in that, comprises the following steps:
According to can be used for sending the descending sub frame number of CSI-RS, the pattern that can be used for sending the pattern number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter and send CSI-RS; Wherein, the pattern number that can be used for sending CSI-RS described in is the quantity of the orthogonal CSI-RS that supports in subframe;
Wherein, according to can be used for sending the descending sub frame number of CSI-RS, the pattern that can be used for sending the pattern number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter and send CSI-RS, comprising:
Determine according to described descending sub frame number and the configuration parameter that can be used for sending CSI-RS the descending sub frame that sends CSI-RS; According to the described pattern that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for the definite CSI-RS of transmission of pattern number that sends CSI-RS; Or
Determine according to described pattern number and the configuration parameter that can be used for sending CSI-RS the pattern that sends described CSI-RS; According to the described descending sub frame that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for the definite described CSI-RS of transmission of pattern number that sends CSI-RS;
Wherein, when can be used for sending the descending sub frame number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter described in basis; While determining according to the described pattern number that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for sending CSI-RS the pattern that sends CSI-RS;
Determine according to described descending sub frame number and the configuration parameter that can be used for sending CSI-RS the descending sub frame that sends CSI-RS, comprising:
According to the described descending sub frame number that can be used for sending CSI-RS, all communities corresponding configuration parameter are divided into the group of respective numbers, Mei Zu community is corresponding to the descending sub frame of a transmission CSI-RS, and Gai Zuzhong community is used this descending sub frame to send CSI-RS;
According to the described pattern that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for the definite CSI-RS of transmission of pattern number that sends CSI-RS, comprising:
According to the described descending sub frame number that can be used for sending CSI-RS, all communities corresponding configuration parameter are divided into the group of respective numbers, and be divided into the set of respective numbers according to the described pattern number Jiang Meizunei community that can be used for sending CSI-RS, Mei Zu community is corresponding to the descending sub frame of a transmission CSI-RS, the interior community of set of every group is corresponding to the pattern of a transmission CSI-RS, and the set Zhong community of this group is used this descending sub frame and this pattern to send CSI-RS;
Wherein, when can be used for sending the pattern number of CSI-RS and the pattern of the definite described CSI-RS of transmission of configuration parameter described in basis; While determining according to the described pattern number that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for sending CSI-RS the descending sub frame that sends described CSI-RS;
Determine according to the pattern number of described transmission CSI-RS and configuration parameter the pattern that sends described CSI-RS, comprising:
According to the described pattern number that can be used for sending CSI-RS, all communities corresponding configuration parameter are divided into the group of respective numbers, Mei Zu community is corresponding to the pattern of a transmission CSI-RS, and Gai Zuzhong community is used this pattern to send CSI-RS;
According to the described descending sub frame that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for the definite described CSI-RS of transmission of pattern number that sends CSI-RS, comprising:
According to the described pattern number that can be used for sending CSI-RS, all communities corresponding configuration parameter are divided into the group of respective numbers, and be divided into the set of respective numbers according to the described descending sub frame number Jiang Meizunei community that can be used for sending CSI-RS, Mei Zu community is corresponding to the pattern of a transmission CSI-RS, the interior community of set of every group is corresponding to the descending sub frame of a transmission CSI-RS, and the set Zhong community of this group is used this descending sub frame and this pattern to send CSI-RS.
2. the method for claim 1, is characterized in that, determines according to described descending sub frame number and the configuration parameter that can be used for sending CSI-RS the descending sub frame that sends CSI-RS, comprising:
According to formula: send descending sub frame=mod(configuration parameter of CSI-RS, can be used for sending the descending sub frame number of CSI-RS) calculate the descending sub frame that sends CSI-RS, wherein, mod represents complementation.
3. the method for claim 1, is characterized in that, according to the described pattern that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for the definite CSI-RS of transmission of pattern number that sends CSI-RS, comprising:
According to formula: the first intermediate parameters=floor(configuration parameter/can be used for sending descending sub frame number of CSI-RS) calculate each group in the first intermediate parameters of each community; Wherein, floor represents downward rounding operation;
According to formula: send pattern=mod(the first intermediate parameters of CSI-RS, can be used for sending the pattern number of CSI-RS) send the pattern of CSI-RS in calculating each group.
4. the method for claim 1, is characterized in that, determines according to described pattern number and the configuration parameter that can be used for sending CSI-RS the pattern that sends described CSI-RS, comprising:
According to formula: send the pattern=mod(configuration parameter of CSI-RS, can be used for sending the pattern number of CSI-RS) calculate the pattern that sends CSI-RS.
5. the method for claim 1, is characterized in that, according to the described descending sub frame that can be used for sending descending sub frame number, the configuration parameter of CSI-RS and can be used for the definite described CSI-RS of transmission of pattern number that sends CSI-RS, comprising:
According to formula: the second intermediate parameters=floor(configuration parameter/can be used for sending pattern number of CSI-RS) calculate each group in the second intermediate parameters of each community;
According to formula: send descending sub frame=mod(the second intermediate parameters of described CSI-RS, can be used for sending the descending sub frame number of CSI-RS) send the descending sub frame of described CSI-RS in calculating each group.
6. the method as described in claim 1-5 any one, it is characterized in that, according to can be used for sending the descending sub frame number of CSI-RS, the pattern that can be used for sending the pattern number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter and send CSI-RS, also comprise afterwards:
Network equipment sends CSI-RS according to the described transmission descending sub frame of CSI-RS and the pattern of described transmission CSI-RS to subscriber equipment.
7. the method as described in claim 1-5 any one, it is characterized in that, according to can be used for sending the descending sub frame number of CSI-RS, the pattern that can be used for sending the pattern number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter and send CSI-RS, also comprise afterwards:
Subscriber equipment receives the CSI-RS from network equipment according to the described transmission descending sub frame of CSI-RS and the pattern of described transmission CSI-RS.
8. a reference signal position locking equipment really, is characterized in that, comprising:
Determination module, can be used for sending the descending sub frame number of CSI-RS, the pattern that can be used for sending the pattern number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter and send CSI-RS for basis; Wherein, the pattern number that can be used for sending CSI-RS described in is the quantity of the orthogonal CSI-RS that supports in subframe;
Wherein, described determination module comprises:
First determines submodule, for can be used for sending the descending sub frame number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter described in basis; Second determines submodule, determines for the pattern number that can be used for sending descending sub frame number, the configuration parameter of CSI-RS described in basis and can be used for sending CSI-RS the pattern that sends CSI-RS; Or
The 3rd determines submodule, for can be used for sending the pattern number of CSI-RS and the pattern of the definite described CSI-RS of transmission of configuration parameter described in basis; The 4th determines submodule, determines for the pattern number that can be used for sending descending sub frame number, the configuration parameter of CSI-RS described in basis and can be used for sending CSI-RS the descending sub frame that sends described CSI-RS;
Wherein, when first definite submodule, for can be used for sending the descending sub frame number of CSI-RS and the descending sub frame of the definite CSI-RS of transmission of configuration parameter described in basis; Second determines submodule, while determining for the pattern number that can be used for sending descending sub frame number, the configuration parameter of CSI-RS described in basis and can be used for sending CSI-RS the pattern that sends CSI-RS;
Described first determines submodule, specifically for can be used for sending the descending sub frame number of CSI-RS described in basis, all communities corresponding configuration parameter are divided into the group of respective numbers, Mei Zu community is corresponding to the descending sub frame of a transmission CSI-RS, and Gai Zuzhong community is used this descending sub frame to send CSI-RS;
Described second determines submodule, specifically for can be used for sending the descending sub frame number of CSI-RS described in basis, all communities corresponding configuration parameter are divided into the group of respective numbers, and be divided into the set of respective numbers according to the described pattern number Jiang Meizunei community that can be used for sending CSI-RS, Mei Zu community is corresponding to the descending sub frame of a transmission CSI-RS, the interior community of set of every group is corresponding to the pattern of a transmission CSI-RS, and the set Zhong community of this group is used this descending sub frame and this pattern to send CSI-RS;
Wherein, when the 3rd definite submodule, for can be used for sending the pattern number of CSI-RS and the pattern of the definite described CSI-RS of transmission of configuration parameter described in basis; The 4th determines submodule, while determining for the pattern number that can be used for sending descending sub frame number, the configuration parameter of CSI-RS described in basis and can be used for sending CSI-RS the descending sub frame that sends described CSI-RS;
The described the 3rd determines submodule, specifically for can be used for sending the pattern number of CSI-RS described in basis, all communities corresponding configuration parameter are divided into the group of respective numbers, Mei Zu community is corresponding to the pattern of a transmission CSI-RS, and Gai Zuzhong community is used this pattern to send CSI-RS;
The described the 4th determines submodule, specifically for can be used for sending the pattern number of CSI-RS described in basis, all communities corresponding configuration parameter are divided into the group of respective numbers, and be divided into the set of respective numbers according to the described descending sub frame number Jiang Meizunei community that can be used for sending CSI-RS, Mei Zu community is corresponding to the pattern of a transmission CSI-RS, the interior community of set of every group is corresponding to the descending sub frame of a transmission CSI-RS, and the set Zhong community of this group is used this descending sub frame and this pattern to send CSI-RS.
9. equipment as claimed in claim 8, is characterized in that,
Described first determines submodule, is further used for according to formula: send descending sub frame=mod(configuration parameter of CSI-RS, can be used for sending the descending sub frame number of CSI-RS) calculate the descending sub frame that sends CSI-RS, wherein, mod represents complementation.
10. equipment as claimed in claim 8, is characterized in that,
Described second determines submodule, is further used for according to formula: the first intermediate parameters=floor(configuration parameter/can be used for sending descending sub frame number of CSI-RS) calculate each group in the first intermediate parameters of each community; Wherein, floor represents downward rounding operation;
According to formula: send pattern=mod(the first intermediate parameters of CSI-RS, can be used for sending the pattern number of CSI-RS) send the pattern of CSI-RS in calculating each group.
11. equipment as claimed in claim 8, is characterized in that,
The described the 3rd determines submodule, is further used for according to formula: send the pattern=mod(configuration parameter of CSI-RS, can be used for sending the pattern number of CSI-RS) calculate the pattern that sends CSI-RS.
12. equipment as claimed in claim 8, is characterized in that,
The described the 4th determines submodule, is further used for according to formula: the second intermediate parameters=floor(configuration parameter/can be used for sending pattern number of CSI-RS) calculate each group in the second intermediate parameters of each community;
According to formula: send descending sub frame=mod(the second intermediate parameters of described CSI-RS, can be used for sending the descending sub frame number of CSI-RS) send the descending sub frame of described CSI-RS in calculating each group.
13. equipment as described in claim 8-12 any one, is characterized in that, when described equipment is during as network equipment, also comprise:
Sending module, for sending CSI-RS according to the described transmission descending sub frame of CSI-RS and the pattern of described transmission CSI-RS to subscriber equipment.
14. equipment as described in claim 8-12 any one, is characterized in that, when described equipment is during as subscriber equipment, also comprise:
Receiver module, for receiving the CSI-RS from network equipment according to the described transmission descending sub frame of CSI-RS and the pattern of described transmission CSI-RS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010231048.5A CN102340801B (en) | 2010-07-14 | 2010-07-14 | Method for determining reference signal (RS) position and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010231048.5A CN102340801B (en) | 2010-07-14 | 2010-07-14 | Method for determining reference signal (RS) position and equipment thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102340801A CN102340801A (en) | 2012-02-01 |
| CN102340801B true CN102340801B (en) | 2014-06-11 |
Family
ID=45516249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010231048.5A Expired - Fee Related CN102340801B (en) | 2010-07-14 | 2010-07-14 | Method for determining reference signal (RS) position and equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102340801B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103347298B (en) * | 2012-12-31 | 2019-02-19 | 上海华为技术有限公司 | Reference signal configuration method and reference signal sending method and relevant device |
| CN103997722B (en) * | 2013-02-18 | 2019-06-18 | 中兴通讯股份有限公司 | A kind of method and system of demodulated reference signal |
| CN106160826A (en) * | 2015-04-20 | 2016-11-23 | 中国移动通信集团公司 | CSI-RS configuration and CSI feedback method, device and relevant device |
| EP3442288B1 (en) | 2016-05-16 | 2021-03-24 | China Mobile Communications Group Co., Ltd | Csi-rs configuration and csi feedback method and apparatus |
| CN107979402B (en) * | 2016-10-25 | 2020-09-08 | 华为技术有限公司 | Channel state information measuring method and device |
| CN108809595B (en) | 2017-05-05 | 2024-02-09 | 华为技术有限公司 | Reference signal notification method and device |
| CN118157727A (en) * | 2017-05-05 | 2024-06-07 | 华为技术有限公司 | Reference signal notification method and device |
| WO2020143021A1 (en) * | 2019-01-11 | 2020-07-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Assignment of physical resource blocks to base stations |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286762A (en) * | 2007-04-10 | 2008-10-15 | 华为技术有限公司 | Method for transmitting sounding pilot and transmitting device |
| CN101635950A (en) * | 2009-08-14 | 2010-01-27 | 中兴通讯股份有限公司 | Method and device for determining positions of cell reference signals |
| CN101662443A (en) * | 2009-09-18 | 2010-03-03 | 中兴通讯股份有限公司 | Sequence generation and mapping method of reference signals and transmission device |
| CN101765134A (en) * | 2010-01-12 | 2010-06-30 | 中兴通讯股份有限公司 | Sending method and system of SRS configuring parameter for carrier aggregation |
-
2010
- 2010-07-14 CN CN201010231048.5A patent/CN102340801B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286762A (en) * | 2007-04-10 | 2008-10-15 | 华为技术有限公司 | Method for transmitting sounding pilot and transmitting device |
| CN101635950A (en) * | 2009-08-14 | 2010-01-27 | 中兴通讯股份有限公司 | Method and device for determining positions of cell reference signals |
| CN101662443A (en) * | 2009-09-18 | 2010-03-03 | 中兴通讯股份有限公司 | Sequence generation and mapping method of reference signals and transmission device |
| CN101765134A (en) * | 2010-01-12 | 2010-06-30 | 中兴通讯股份有限公司 | Sending method and system of SRS configuring parameter for carrier aggregation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102340801A (en) | 2012-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102340801B (en) | Method for determining reference signal (RS) position and equipment thereof | |
| CN102340379B (en) | CSI-RS (Channel Status Information-Reference Signal) transmission method and detection method, and devices of CSI-RS transmission method and detection method | |
| CN106856426B (en) | A kind of DMRS indicating means, terminal and base station | |
| CN102122985B (en) | MU-MIMO (Multi-User Multi-Input Multi-Output) transmission method | |
| US9306717B2 (en) | Method and device for transmitting a downlink reference signal in a wireless communications system supporting multiple antennas | |
| RU2527930C2 (en) | Precoding method and apparatus based on mixed multiplexing demodulation reference signals | |
| CN102395206B (en) | Transmission method and equipment for downside control information | |
| CN102437986B (en) | Reference signal mapping method and device | |
| WO2017050065A1 (en) | Method and apparatus for configuring channel state information-reference signal | |
| CN103391563B (en) | Downlink control information sending method, detection method, base station and user equipment | |
| CN102611524B (en) | Method, system and equipment for information transmission | |
| CN105991222B (en) | Configuration information notification method, acquisition method, device, base station and terminal | |
| CN106411486B (en) | Method and device for sending and receiving uplink demodulation pilot frequency | |
| CN103391629B (en) | The collocation method and system of a kind of reference signal | |
| JP2015501620A (en) | Method and apparatus for transmitting control information | |
| MX2012009107A (en) | Transmission power configuration method and apparatus for demodulation reference signal. | |
| CN104038320A (en) | Resource mapping method and apparatus, resource receiving method and apparatus, signaling notifying method and apparatus, and signaling obtaining method and apparatus | |
| CN106685620B (en) | Configuration method and device, analysis method and device of channel state measurement pilot frequency | |
| KR20190059976A (en) | Methods for adapting the density of demodulation reference signals | |
| CN105991264B (en) | A kind of sending method of measuring reference signals, equipment and system | |
| CN106209300B (en) | Control information sending method, control information receiving method, transmitter and receiver | |
| US20200119850A1 (en) | Mixed space time and space frequency block coding | |
| KR102048232B1 (en) | Channel measurement method, base station and UE | |
| KR101583580B1 (en) | Control channel transmission method and device | |
| CN111600693B (en) | Method, device and system for transmitting uplink control information |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |