CN106921479A - Channel estimation methods, sending ending equipment and receiving device - Google Patents
Channel estimation methods, sending ending equipment and receiving device Download PDFInfo
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- CN106921479A CN106921479A CN201511006101.0A CN201511006101A CN106921479A CN 106921479 A CN106921479 A CN 106921479A CN 201511006101 A CN201511006101 A CN 201511006101A CN 106921479 A CN106921479 A CN 106921479A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
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Abstract
A kind of channel estimation methods are the embodiment of the invention provides, including generates a subframe, the subframe includes multiple Resource Block pair, each Resource Block is carried and adhered to separately different time slots to two Resource Block for being included by one group of continuous subcarrier of identical；Each Resource Block is to comprising multiple demodulation resources grain group, each demodulation resource grain group includes multiple resource grains；Each demodulation resource grain group carries the demodulated reference signal of multiple active antenna ports；In each Resource Block internally, the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is associated with the quantity of the active antenna port associated by the subframe；Send subframe.In technical scheme provided in an embodiment of the present invention, can be according to the quantity of the active antenna port associated by each subframe, the quantity that the demodulation resource grain of the demodulated reference signal that the multiple Resource Block for setting the subframe internally carry same active antenna port is organized, so that the distribution of demodulated reference signal bearing resource is more flexible.
Description
Technical field
The present invention relates to wireless communication technology, more particularly to a kind of channel estimation methods, sending ending equipment and receiving device.
Background technology
The appearance of MIMO (Multi-input Multi-output, multiple-input, multiple-output) technology, greatly improves the number of wireless communication system
According to transmission rate, therefore gradually by increasing wireless communication standard, such as LTE (Long-Term Evolution, Long Term Evolution)
Adopted.Newest LTE standard highest supports 8 antenna ports (Antenna Port), and receiving terminal is right by each antenna port institute
The demodulated reference signal (Demodulation Reference Signal, DMRS) answered carries out channel estimation to the antenna port.
In newest LTE standard, the bearing resource of demodulated reference signal is allocated using changeless mode, therefore resource point
With mode underaction.
The content of the invention
In view of this, it is necessary to provide a kind of channel estimation methods in fact, is capable of achieving the flexible allocation of demodulated reference signal bearing resource.
Simultaneously, there is provided a kind of sending ending equipment, it is capable of achieving the flexible allocation of demodulated reference signal bearing resource.
Simultaneously, there is provided a kind of receiving device, it is capable of achieving the flexible allocation of demodulated reference signal bearing resource.
A kind of first aspect according to embodiments of the present invention, there is provided channel estimation methods, including：
A subframe is generated, the subframe includes multiple Resource Block pair, each Resource Block is continuously sub by one group of identical to two Resource Block for being included
Carriers carry and adhere to different time slots separately；Each Resource Block is to comprising multiple demodulation resources grain group, each demodulation resource grain group includes multiple resource grains；
Each demodulation resource grain group carries the demodulated reference signal of multiple active antenna ports；In each Resource Block internally, same active antenna end is carried
The quantity of the demodulation resource grain group of the demodulated reference signal of mouth is associated with the quantity of the active antenna port associated by the subframe；
Send the subframe.
In the first mode realized of first aspect, if the number of the active antenna port being associated with the subframe in each Resource Block internally
More than or equal to 13 and less than or equal to 24, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 1 to amount.
According to first aspect or the first mode realized of first aspect, in being capable of achieving mode at second of first aspect, in each resource
Block internally, if the quantity of the active antenna port being associated with the subframe is more than or equal to 9 and less than or equal to 12, carries same active antenna end
The quantity of the demodulation resource grain group of the demodulated reference signal of mouth is 2.
Mode is capable of achieving, the of first aspect second according to first aspect, the first mode realized of first aspect or first aspect
In three kinds of achievable modes, if the quantity of the active antenna port being associated with the subframe is more than or equal to 1 and is less than in each Resource Block internally
Equal to 8, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 3.
According to the 3rd of first aspect, the first mode realized of first aspect, second achievable mode of first aspect or first aspect the
Achievable mode is planted, in the 4th kind of achievable mode of first aspect, each Resource Block is to comprising 6 demodulation resources grain groups, each solution is raised wages
Source grain group includes 4 resource grains.
In the 5th kind of achievable mode of first aspect, carry the demodulated reference signal of same active antenna port in each Resource Block internally
The quantity of demodulation resource grain group is reduced with the increase of the quantity of the active antenna port associated by the subframe, with enlivening associated by the subframe
The reduction of the quantity of antenna port and increase.
A kind of second aspect according to embodiments of the present invention, there is provided channel estimation methods, including：
A subframe is received, the subframe includes multiple Resource Block pair, each Resource Block is continuously sub by one group of identical to two Resource Block for being included
Carriers carry and adhere to different time slots separately；Each Resource Block is to comprising multiple demodulation resources grain group, each demodulation resource grain group includes multiple resource grains；
Each demodulation resource grain group carries the demodulated reference signal of multiple active antenna ports；In each Resource Block internally, same active antenna end is carried
The quantity of the demodulation resource grain group of the demodulated reference signal of mouth is associated with the quantity of the active antenna port associated by the subframe；
For each active antenna port, according to the corresponding demodulated reference signal in active antenna port carried in the subframe, to the active day
Line end mouthful carries out channel estimation.
In the first mode realized of second aspect, if the number of the active antenna port being associated with the subframe in each Resource Block internally
More than or equal to 13 and less than or equal to 24, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 1 to amount.
According to second aspect or the first mode realized of second aspect, in being capable of achieving mode at second of second aspect, in each resource
Block internally, if the quantity of the active antenna port being associated with the subframe is more than or equal to 9 and less than or equal to 12, carries same active antenna end
The quantity of the demodulation resource grain group of the demodulated reference signal of mouth is 2.
Mode is capable of achieving, the of second aspect second according to second aspect, the first mode realized of second aspect or second aspect
In three kinds of achievable modes, if the quantity of the active antenna port being associated with the subframe is more than or equal to 1 and is less than in each Resource Block internally
Equal to 8, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 3.
According to the 3rd of second aspect, the first mode realized of second aspect, second achievable mode of second aspect or second aspect the
Achievable mode is planted, in the 4th kind of achievable mode of second aspect, each Resource Block is to comprising 6 demodulation resources grain groups, each solution is raised wages
Source grain group includes 4 resource grains.
In the 5th kind of achievable mode of second aspect, carry the demodulated reference signal of same active antenna port in each Resource Block internally
The quantity of demodulation resource grain group is reduced with the increase of the quantity of the active antenna port associated by the subframe, with enlivening associated by the subframe
The reduction of the quantity of antenna port and increase.
A kind of third aspect according to embodiments of the present invention, there is provided sending ending equipment, it is characterised in that including：
Generation module, for generating a subframe, the subframe includes multiple Resource Block pair, and each Resource Block is to two Resource Block for being included by identical
One group of continuous subcarrier carry and adhere to different time slots separately；Each Resource Block is to comprising multiple demodulation resources grain group, each demodulation resource grain group
Comprising multiple resource grains；Each demodulation resource grain group carries the demodulated reference signal of multiple active antenna ports；In each Resource Block internally, hold
The quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is related to the quantity of the active antenna port associated by the subframe
Connection；
Sending module, for sending the subframe.
In the first mode realized of the third aspect, if the number of the active antenna port being associated with the subframe in each Resource Block internally
More than or equal to 13 and less than or equal to 24, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 1 to amount.
According to the third aspect or the first mode realized of the third aspect, in being capable of achieving mode at second of the third aspect, in each resource
Block internally, if the quantity of the active antenna port being associated with the subframe is more than or equal to 9 and less than or equal to 12, carries same active antenna end
The quantity of the demodulation resource grain group of the demodulated reference signal of mouth is 2.
Mode is capable of achieving, the of the third aspect second according to the third aspect, the first mode realized of the third aspect or the third aspect
In three kinds of achievable modes, if the quantity of the active antenna port being associated with the subframe is more than or equal to 1 and is less than in each Resource Block internally
Equal to 8, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 3.
According to the 3rd of the third aspect, the first mode realized of the third aspect, second achievable mode of the third aspect or the third aspect the
Achievable mode is planted, in the 4th kind of achievable mode of the third aspect, each Resource Block is to comprising 6 demodulation resources grain groups, each solution is raised wages
Source grain group includes 4 resource grains.
In the 5th kind of achievable mode of the third aspect, carry the demodulated reference signal of same active antenna port in each Resource Block internally
The quantity of demodulation resource grain group is reduced with the increase of the quantity of the active antenna port associated by the subframe, with enlivening associated by the subframe
The reduction of the quantity of antenna port and increase.
A kind of fourth aspect according to embodiments of the present invention, there is provided receiving device, including：
Receiver module, for receiving a subframe, the subframe includes multiple Resource Block pair, and each Resource Block is to two Resource Block for being included by identical
One group of continuous subcarrier carry and adhere to different time slots separately；Each Resource Block is to comprising multiple demodulation resources grain group, each demodulation resource grain group
Comprising multiple resource grains；Each demodulation resource grain group carries the demodulated reference signal of multiple active antenna ports；In each Resource Block internally, hold
The quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is related to the quantity of the active antenna port associated by the subframe
Connection；
Channel estimation module, for for each active antenna port, according to the corresponding demodulation ginseng in the active antenna port carried in the subframe
Signal is examined, channel estimation is carried out to the active antenna port.
In the first mode realized of fourth aspect, if the number of the active antenna port being associated with the subframe in each Resource Block internally
More than or equal to 13 and less than or equal to 24, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 1 to amount.
According to fourth aspect or the first mode realized of fourth aspect, in being capable of achieving mode at second of fourth aspect, in each resource
Block internally, if the quantity of the active antenna port being associated with the subframe is more than or equal to 9 and less than or equal to 12, carries same active antenna end
The quantity of the demodulation resource grain group of the demodulated reference signal of mouth is 2.
Mode is capable of achieving, the of fourth aspect second according to fourth aspect, the first mode realized of fourth aspect or fourth aspect
In three kinds of achievable modes, if the quantity of the active antenna port being associated with the subframe is more than or equal to 1 and is less than in each Resource Block internally
Equal to 8, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 3.
According to fourth aspect, the first mode realized of fourth aspect, second achievable mode or fourth aspect of fourth aspect
The third mode realized, in the 4th kind of achievable mode of fourth aspect, each Resource Block to comprising 6 demodulation resources grain groups,
Each demodulation resource grain group includes 4 resource grains.
In the 5th kind of achievable mode of fourth aspect, carry the demodulation reference of same active antenna port in each Resource Block internally
The quantity of the demodulation resource grain group of signal is reduced with the increase of the quantity of the active antenna port associated by the subframe, with the subframe institute
The reduction of the quantity of the active antenna port of association and increase.
A kind of 5th aspect according to embodiments of the present invention, there is provided channel estimation methods, including：
A subframe is generated, the subframe includes multiple Resource Units, and each Resource Unit is carried by one group of continuous or discrete subcarrier, and is held
Be loaded in that one group continuous or discrete symbol on；The Resource Unit includes multiple demodulation resource grain groups, and each demodulation resource grain group is provided comprising multiple
Source grain；Each demodulation resource grain group carries the demodulated reference signal of single or multiple active antenna ports；In each Resource Unit, carry
The quantity of the demodulation resource grain group of the demodulated reference signal of same active antenna port is related to the quantity of the active antenna port associated by the subframe
Connection；
Send the subframe.
In the first mode realized of the 5th aspect, in each Resource Unit, if the number of the active antenna port being associated with the subframe
More than or equal to 13 and less than or equal to 24, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 1 to amount.
According to the 5th aspect or the first mode realized of the 5th aspect, in being capable of achieving mode at second of the 5th aspect, in each resource
In unit, if the quantity of the active antenna port being associated with the subframe carries same active antenna end more than or equal to 9 and less than or equal to 12
The quantity of the demodulation resource grain group of the demodulated reference signal of mouth is 2.
Mode is capable of achieving second according to the 5th aspect, the first mode realized of the 5th aspect or the 5th aspect, the of the 5th aspect
In three kinds of achievable modes, in each Resource Unit, if the quantity of the active antenna port being associated with the subframe is more than or equal to 1 and is less than
Equal to 8, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 3.
According to the 3rd of the 5th aspect, the first mode realized of the 5th aspect, second achievable mode of the 5th aspect or the 5th aspect the
Achievable mode is planted, in the 4th kind of achievable mode of the 5th aspect, each Resource Unit includes 6 demodulation resources grain groups, and each solution is raised wages
Source grain group includes 4 resource grains.
In the 5th kind of achievable mode of the 5th aspect, in each Resource Unit, the demodulation reference of same active antenna port is carried
The quantity of the demodulation resource grain group of signal is reduced with the increase of the quantity of the active antenna port associated by the subframe, with the subframe institute
The reduction of the quantity of the active antenna port of association and increase.
A kind of 6th aspect according to embodiments of the present invention, there is provided channel estimation methods, including：
A subframe is received, the subframe includes multiple Resource Units, and each Resource Unit is carried by one group of continuous or discrete subcarrier, and is held
Be loaded in that one group continuous or discrete symbol on；The Resource Unit includes multiple demodulation resource grain groups, and each demodulation resource grain group is provided comprising multiple
Source grain；Each demodulation resource grain group carries the demodulated reference signal of single or multiple active antenna ports；In each Resource Unit, carry
The quantity of the demodulation resource grain group of the demodulated reference signal of same active antenna port is related to the quantity of the active antenna port associated by the subframe
Connection；
For each active antenna port, according to the corresponding demodulated reference signal in active antenna port carried in the subframe, to this
Active antenna port carries out channel estimation.
In the first mode realized of the 6th aspect, in each Resource Unit, if the number of the active antenna port being associated with the subframe
More than or equal to 13 and less than or equal to 24, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 1 to amount.
According to the 6th aspect or the first mode realized of the 6th aspect, in being capable of achieving mode at second of the 6th aspect, in each resource
In unit, if the quantity of the active antenna port being associated with the subframe carries same active antenna end more than or equal to 9 and less than or equal to 12
The quantity of the demodulation resource grain group of the demodulated reference signal of mouth is 2.
Mode is capable of achieving second according to the 6th aspect, the first mode realized of the 6th aspect or the 6th aspect, the of the 6th aspect
In three kinds of achievable modes, in each Resource Unit, if the quantity of the active antenna port being associated with the subframe is more than or equal to 1 and is less than
Equal to 8, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 3.
According to the 3rd of the 6th aspect, the first mode realized of the 6th aspect, second achievable mode of the 6th aspect or the 6th aspect the
Achievable mode is planted, in the 4th kind of achievable mode of the 6th aspect, each Resource Unit includes 6 demodulation resources grain groups, and each solution is raised wages
Source grain group includes 4 resource grains.
In the 5th kind of achievable mode of the 6th aspect, in each Resource Unit, the demodulation reference of same active antenna port is carried
The quantity of the demodulation resource grain group of signal is reduced with the increase of the quantity of the active antenna port associated by the subframe, with the subframe institute
The reduction of the quantity of the active antenna port of association and increase.
A kind of 7th aspect according to embodiments of the present invention, there is provided sending ending equipment, including：
Generation module, for generating a subframe, the subframe includes multiple Resource Units, and each Resource Unit is by one group of continuous or discrete son
Carriers carry, and be carried on that one group continuous or discrete symbol on；The Resource Unit includes multiple demodulation resource grain groups, each demodulation resource
Grain group includes multiple resource grains；Each demodulation resource grain group carries the demodulated reference signal of single or multiple active antenna ports；In each money
In source unit, the quantity of the demodulation resource grain group of the demodulated reference signal of same active antenna port and the active antenna end associated by the subframe are carried
The quantity of mouth is associated；
Sending module, for sending the subframe.
In the first mode realized of the 7th aspect, in each Resource Unit, if the number of the active antenna port being associated with the subframe
More than or equal to 13 and less than or equal to 24, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 1 to amount.
According to the 7th aspect or the first mode realized of the 7th aspect, in being capable of achieving mode at second of the 7th aspect, in each resource
In unit, if the quantity of the active antenna port being associated with the subframe carries same active antenna end more than or equal to 9 and less than or equal to 12
The quantity of the demodulation resource grain group of the demodulated reference signal of mouth is 2.
Mode is capable of achieving second according to the 7th aspect, the first mode realized of the 7th aspect or the 7th aspect, the of the 7th aspect
In three kinds of achievable modes, in each Resource Unit, if the quantity of the active antenna port being associated with the subframe is more than or equal to 1 and is less than
Equal to 8, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 3.
According to the 3rd of the 7th aspect, the first mode realized of the 7th aspect, second achievable mode of the 7th aspect or the 7th aspect the
Achievable mode is planted, in the 4th kind of achievable mode of the 7th aspect, each Resource Unit includes 6 demodulation resources grain groups, and each solution is raised wages
Source grain group includes 4 resource grains.
In the 5th kind of achievable mode of the 7th aspect, in each Resource Unit, the demodulated reference signal of same active antenna port is carried
The quantity of demodulation resource grain group is reduced with the increase of the quantity of the active antenna port associated by the subframe, with enlivening associated by the subframe
The reduction of the quantity of antenna port and increase.
A kind of eighth aspect according to embodiments of the present invention, there is provided receiving device, including：
Receiver module, for receiving a subframe, the subframe includes multiple Resource Units, and each Resource Unit is by one group of continuous or discrete son
Carriers carry, and be carried on that one group continuous or discrete symbol on；The Resource Unit includes multiple demodulation resource grain groups, each demodulation resource
Grain group includes multiple resource grains；Each demodulation resource grain group carries the demodulated reference signal of single or multiple active antenna ports；In each money
In source unit, the quantity of the demodulation resource grain group of the demodulated reference signal of same active antenna port and the active antenna end associated by the subframe are carried
The quantity of mouth is associated；
Channel estimation module, for for each active antenna port, according to the corresponding demodulation ginseng in the active antenna port carried in the subframe
Signal is examined, channel estimation is carried out to the active antenna port.
In the first mode realized of eighth aspect, in each Resource Unit, if the number of the active antenna port being associated with the subframe
More than or equal to 13 and less than or equal to 24, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 1 to amount.
According to eighth aspect or the first mode realized of eighth aspect, in being capable of achieving mode at second of eighth aspect, in each resource
In unit, if the quantity of the active antenna port being associated with the subframe carries same active antenna end more than or equal to 9 and less than or equal to 12
The quantity of the demodulation resource grain group of the demodulated reference signal of mouth is 2.
Mode is capable of achieving, the of eighth aspect second according to eighth aspect, the first mode realized of eighth aspect or eighth aspect
In three kinds of achievable modes, in each Resource Unit, if the quantity of the active antenna port being associated with the subframe is more than or equal to 1 and is less than
Equal to 8, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 3.
According to eighth aspect, the first mode realized of eighth aspect, second achievable mode or eighth aspect of eighth aspect
The third mode realized, in the 4th kind of achievable mode of eighth aspect, each Resource Unit includes 6 demodulation resources grain groups,
Each demodulation resource grain group includes 4 resource grains.
In the 5th kind of achievable mode of eighth aspect, in each Resource Unit, the demodulation reference of same active antenna port is carried
The quantity of the demodulation resource grain group of signal is reduced with the increase of the quantity of the active antenna port associated by the subframe, with the subframe institute
The reduction of the quantity of the active antenna port of association and increase.
In technical scheme provided in an embodiment of the present invention, can be set according to the quantity of the active antenna port associated by each subframe
Multiple Resource Block of the subframe internally carry the quantity of the demodulation resource grain group of the demodulated reference signal of same active antenna port.Therefore, originally
The technical scheme that inventive embodiments are provided causes that the distribution of demodulated reference signal bearing resource is more flexible.
Brief description of the drawings
Fig. 1 is the logical construction schematic diagram according to the Resource Block pair of one embodiment of the invention；
Fig. 2 is the flow chart according to the channel estimation methods of one embodiment of the invention；
Fig. 3 is the schematic diagram of the distribution pattern according to the demodulation resource grain group of one embodiment of the invention；
Fig. 4 is the schematic diagram of the distribution pattern according to the demodulation resource grain group of another embodiment of the present invention；
Fig. 5 is the schematic diagram of the distribution pattern according to the demodulation resource grain group of further embodiment of this invention；
Fig. 6 is the logical construction schematic diagram according to the sending ending equipment of one embodiment of the invention；
Fig. 7 is the logical construction schematic diagram according to the receiving device of one embodiment of the invention；
Fig. 8 is the hardware architecture diagram according to the communication equipment of one embodiment of the invention；
Fig. 9 is the logical construction schematic diagram according to the Resource Unit of one embodiment of the invention.
Specific embodiment
As a rule, the quantity of the antenna port for being used per data transfer (such as the transmission of each subframe (Subframe)) possibly lower than
The maximum antenna port number that wireless communication standard is supported, in other words, during every data transfer, some antennas port may be simultaneously
It is not used by.For example, although newest LTE standard highest supports 8 antenna ports, the antenna port used per data transfer
Quantity is likely lower than 8.For ease of description, antenna port actually used in each data transmission procedure is referred to as active antenna port.
To clearly describe the technical scheme of the embodiment of the present invention, the structure to Resource Block pair is described initially below.
Fig. 1 be according to one embodiment of the invention Resource Block to 100 logical construction schematic diagram.The Resource Block (Resource Block, RB) is right
100 are located in a subframe (not shown), and in addition to the Resource Block shown in Fig. 1 is to 100, the subframe is not also comprising other Resource Block to (showing
Go out).Resource Block shown in Fig. 1 includes Resource Block 102 and Resource Block 104 to 100.Resource Block 102 and Resource Block 104 are in frequency domain by same
The continuous subcarrier (Subcarrier) of group is carried, and 12 subcarriers are included in this group of subcarrier.Additionally, 104 points of Resource Block 102 and Resource Block
The different time slot (Slot) of category, i.e. Resource Block 102 belongs to time slot 1, and Resource Block 104 belongs to time slot 2.Each time slot includes 7 symbols in time domain
Number (Symbol).This Resource Block is resource grains (Resource Element, RE) to the least resource unit in 100, such as resource grains 106,
Each resource grains is by a symbols carry in a subcarrier and time domain in frequency domain.Consequently, it is possible among Resource Block 102 and Resource Block 104
Each include 84 (12 × 7) individual resource grains, Resource Block to 100 include 168 resource grains.
It should be noted that for ease of description, Resource Block shown in Fig. 1 employs the structure of Resource Block pair in current LTE subframes to 100 structure.But
It is that it should be apparent to a person skilled in the art that the Resource Block in current LTE subframes is to that can also use other structures, therefore Resource Block is to 100
Also can be using other structures.Additionally, it should be apparent to a person skilled in the art that in subframe defined in the embodiment of the present invention Resource Block pair knot
Structure is also not limited only to the structure defined in current LTE standard, can also according to specific needs define other structures, for example, can be according to specific
The need for the number of symbol that the quantity and each time slot of above-mentioned same group continuous subcarrier sub-carriers of sub-frame resources block centering are included is set
Amount, or by Resource Block to being changed to other structures.
In Resource Block is to 100, multiple resource grains be used to carry demodulated reference signal, and this resource grains for carrying demodulated reference signal are led to
Often organized in units of resource grains group, each resource grains group includes multiple resource grains.For ease of description, by above-mentioned carrying demodulated reference signal
Resource grains group be referred to as demodulation resource grain group.The quantity of the internal demodulation resource grain group of Resource Block is described in detail with reference to Fig. 2 just below.
Fig. 2 is the flow chart according to the channel estimation methods 200 of one embodiment of the invention.
Step 202, sending ending equipment generates a subframe, and the subframe includes multiple Resource Block pair, each Resource Block to two Resource Block being included by
The continuous subcarrier of one group of identical is carried and adheres to different time slots separately；Each Resource Block is to comprising multiple demodulation resources grain group, each demodulation resource
Grain group includes multiple resource grains；Each demodulation resource grain group carries the demodulated reference signal of multiple active antenna ports；In each Resource Block internally,
Carry the quantity phase of quantity and the active antenna port associated by the subframe of the demodulation resource grain group of the demodulated reference signal of same active antenna port
Association.
Above-mentioned subframe is sent to receiving terminal by step 204, sending ending equipment.
Step 206, receiving device receives above-mentioned subframe.
Step 208, for each active antenna port, receiving device is according to the corresponding demodulation ginseng in the active antenna port carried in above-mentioned subframe
Signal is examined, channel estimation is carried out to the active antenna port.
In technical scheme provided in an embodiment of the present invention, the subframe can be set according to the quantity of the active antenna port associated by each subframe
Multiple Resource Block internally carry same active antenna port demodulated reference signal demodulation resource grain group quantity.Therefore, the embodiment of the present invention
The technical scheme of offer causes that the resource allocation of demodulated reference signal is more flexible.
Specifically, in each Resource Block internally, if the quantity of the active antenna port being associated with the subframe is more than or equal to 13 and is less than or equal to
24, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 1.In this case, demodulation resource grain group
Can be as shown in Figure 3 in the internal distribution pattern of Resource Block.
In the distribution pattern 300 shown in Fig. 3, the resource grains represented by filling pattern 302~312 are used to carry demodulated reference signal, therefore altogether
There are 24 resource grains for carrying demodulated reference signal.Meanwhile, the resource grains represented by identical filling pattern constitute demodulation resource grain group, therefore,
Distribution pattern 300 shown in Fig. 3 carries each resource grains of demodulated reference signal and only belongs to one altogether comprising 6 demodulation resources grain groups
Demodulation resource grain group.Each demodulation resource grain group can carry multiple work by code division multiplexing (Code Division Multiplexing, CDM) mode
The demodulated reference signal of jump antenna port.In the distribution pattern 300 shown in Fig. 3, in each Resource Block internally, each active antenna port
Demodulated reference signal is only organized by a demodulation resource grain and carried, but each demodulation resource grain group at most corresponding solution in 4 active antenna ports of carrying
Adjust reference signal.
It should be noted that the numerical lower limits 13 and the upper limit 24 of the active antenna port being associated with the subframe, and carry same active antenna port
The quantity 1 of the demodulation resource grain group of demodulated reference signal, can according to specific needs be revised as the first numerical value and second value, and third value.
Additionally, if the quantity of the active antenna port being associated with the subframe is more than or equal to 9 and less than or equal to 12. in each Resource Block internally
The quantity for then carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 2.In this case, demodulation resource grain group is in money
The internal distribution pattern of source block can be as shown in Figure 4.
In the distribution pattern 400 shown in Fig. 4, the resource grains represented by filling pattern 402~406 are used to carry demodulated reference signal, therefore altogether
There are 24 resource grains for carrying demodulated reference signal.Meanwhile, carried by same sub-carrier and constitute one by the resource grains that identical filling pattern is represented
Demodulation resource grain group, therefore, the distribution pattern 400 shown in Fig. 4 carries the every of demodulated reference signal altogether comprising 6 demodulation resource grain groups
Individual resource grains only belong to a demodulation resource grain group.Each demodulation resource grain group can carry multiple active antenna ports by code division multiplexing mode
Demodulated reference signal.In the distribution pattern 400 shown in Fig. 4, in each Resource Block internally, the demodulated reference signal of each active antenna port
Carried by two demodulation resource grain groups, the resource grains in the two demodulation resources grain group are represented by identical filling pattern.Additionally, each solution is raised wages
The corresponding demodulated reference signal in the most 4 active antenna ports of carrying of source grain group.
It should be noted that the numerical lower limits 9 and the upper limit 12 of the active antenna port being associated with the subframe, and carry same active antenna port
The quantity 2 of the demodulation resource grain group of demodulated reference signal, can according to specific needs be revised as the 4th numerical value and the 5th numerical value, and the 6th numerical value.
Additionally, if the quantity of the active antenna port being associated with the subframe is more than or equal to 1 and less than or equal to 8. in each Resource Block internally
The quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 3.
In the distribution pattern 500 shown in Fig. 5, the resource grains represented by filling pattern 502~504 are used to carry demodulated reference signal, therefore altogether
There are 24 resource grains for carrying demodulated reference signal.Meanwhile, carried by same sub-carrier and constitute one by the resource grains that identical filling pattern is represented
Demodulation resource grain group, therefore, the distribution pattern 500 shown in Fig. 5 carries the every of demodulated reference signal altogether comprising 6 demodulation resource grain groups
Individual resource grains only belong to a demodulation resource grain group.Each demodulation resource grain group can carry multiple active antenna ports by code division multiplexing mode
Demodulated reference signal.In the distribution pattern 500 shown in Fig. 5, in each Resource Block internally, the demodulated reference signal of each active antenna port
Carried by three demodulation resource grain groups, the resource grains in these three demodulation resources grain group are represented by identical filling pattern.Additionally, each solution is raised wages
The corresponding demodulated reference signal in the most 4 active antenna ports of carrying of source grain group.
It should be noted that the numerical lower limits 1 and the upper limit 8 of the active antenna port being associated with the subframe, and the solution for carrying same active antenna port
The quantity 3 of the demodulation resource grain group of reference signal is adjusted, the 7th numerical value and the 8th numerical value, and the 9th numerical value can be according to specific needs revised as.
It should be noted that during implementing, carrying the resource grains in the demodulation resource grain group of demodulated reference signal in the internal position of Resource Block
It is not limited only to the position shown in Fig. 3~Fig. 5.In other words, the demodulation resource grain group for carrying demodulated reference signal can be set according to specific needs
In resource grains in the internal position of Resource Block.Additionally, during implementing, can be used orthogonal covering codes (Orthogonal Cover Code,
OCC) above-mentioned code division multiplexing is realized, the length of orthogonal covering codes is relevant with the quantity of resource grains in each demodulation resource grain group.For example, in figure
In distribution pattern 300~500 shown in 3~Fig. 5, orthogonal covering codes that length is 4 can be used to realize code division multiplexing.Meanwhile, by active antenna
The demodulated reference signal of port is carried in demodulation resource grain group the process in each resource grains, and by the demodulation reference of multiple active antenna ports
Signal is carried in the process of same demodulation resource grain group by orthogonal covering codes in CDMA mode, in prior art (such as LTE relevant criterions)
In have been carried out clearly describing, therefore here is omitted.
From the distribution pattern 300~500 shown in Fig. 3 to Fig. 5, during implementing, each Resource Block pair can raise wages comprising 6 solutions
Source grain group, each demodulation resource grain group can include 4 resource grains.Additionally, from the distribution pattern 300~500 shown in Fig. 3 to Fig. 5,
Each Resource Block internally, carries the quantity of demodulation resource grain group of the demodulated reference signal of same active antenna port with the work associated by the subframe
Jump antenna port quantity increase and reduce, increase with the reduction of the quantity of the active antenna port associated by the subframe.
With the introducing of large scale array antenna, the wave beam that base station side is formed narrows, and energy is more concentrated, and the interference between user diminishes, multipath
Number is reduced, and above-mentioned change causes the degree of frequency selective fading to mitigate, and relatively flat frequency selective fading exists for demodulated reference signal
LS-SVM sparseness on frequency domain creates basis, i.e. the quantity of the subcarrier shared by resource grains i.e. in demodulation resource grain group is less and shared
It is spaced at greater between subcarrier.Based on above-mentioned analysis, resource grains or demodulation resource grain that demodulated reference signal internally takes in Resource Block
The quantity of group can be reduced suitably, support active antenna port number higher.
On the other hand, when channel circumstance is deteriorated, the quantity of active antenna port declines.In such a case, it is possible to be each active antenna end
Demodulated reference signal corresponding to mouthful distributes more resource grains or demodulation resource grain group, to improve the precision of channel estimation.
Fig. 6 is the logical construction schematic diagram according to the sending ending equipment 600 of one embodiment of the invention.During implementing, the transmitting terminal sets
Standby 600 can be base station, or user terminal.Sending ending equipment 600 includes generation module 602 and sending module 604.
Generation module 602 is used to generate a subframe, and the subframe includes multiple Resource Block pair, and each Resource Block is to two Resource Block for being included by phase
One group of same continuous subcarrier is carried and adheres to different time slots separately；Each Resource Block is to comprising multiple demodulation resources grain group, each demodulation resource grain
Group includes multiple resource grains；Each demodulation resource grain group carries the demodulated reference signal of multiple active antenna ports；In each Resource Block internally,
Carry the quantity phase of quantity and the active antenna port associated by the subframe of the demodulation resource grain group of the demodulated reference signal of same active antenna port
Association；
Sending module 604 is used to send the subframe.
Fig. 7 is the logical construction schematic diagram according to the receiving device 700 of one embodiment of the invention.During implementing, the receiving terminal sets
Standby 700 can be user terminal, or base station.Receiving device includes receiving module 702 and channel estimation module 704.
Receiver module 702 is used to receive a subframe, and the subframe includes multiple Resource Block pair, and each Resource Block is to two Resource Block for being included by phase
One group of same continuous subcarrier is carried and adheres to different time slots separately；Each Resource Block is to comprising multiple demodulation resources grain group, each demodulation resource grain
Group includes multiple resource grains；Each demodulation resource grain group carries the demodulated reference signal of multiple active antenna ports；In each Resource Block internally,
Carry the quantity phase of quantity and the active antenna port associated by the subframe of the demodulation resource grain group of the demodulated reference signal of same active antenna port
Association；
Channel estimation module 704 is used for for each active antenna port, according to the corresponding demodulation in active antenna port carried in the subframe
Reference signal, channel estimation is carried out to the active antenna port.
Sending ending equipment 600 and receiving device 700 cooperate, and perform channel estimation methods 200.Above-mentioned modules are performing aforesaid operations
During the correlation technique feature that is related to, example is described in detail above in association with channel estimation methods 200, therefore no longer goes to live in the household of one's in-laws on getting married herein
State.
Fig. 8 is the hardware architecture diagram according to the communication equipment 800 of one embodiment of the invention.Communication equipment 800 can be hair mentioned above
Sending end equipment, it can be receiving device mentioned above to have.Communication equipment 800 include processor 802, memory 804, transceiver 806,
Input/output interface 808 and bus 810, wherein, processor 802, memory 804, transceiver 806 and input/output interface 808 are by total
Communication connection between the realization of line 810.
Processor 802 is used to read the control instruction stored in memory 804, to perform the institute of generation module 602 in above-mentioned sending ending equipment 600
Operation in the operation of execution, and receiving device 700 performed by channel estimation module 704.Transceiver 806 is used to match somebody with somebody with processor 802
Close, to perform the operation in above-mentioned sending ending equipment 600 performed by sending module 604, and the institute of receiver module 702 in receiving device 700
The operation of execution.
It should be noted that above-mentioned subframe also can be using other structures.For example, during implementing, above-mentioned Resource Block pair can be reduced to a kind of single
One form, i.e. Resource Unit.The Resource Unit is carried by one group of continuous or discrete subcarrier, and is carried on one group of continuous or non-company
On continuous symbol.The Resource Unit includes multiple demodulation resource grain groups, and each demodulation resource grain group includes multiple resource grains；Each demodulation resource grain
Group carries the demodulated reference signal of single or multiple active antenna ports；In each Resource Unit, the solution of same active antenna port is carried
Adjust the quantity of the demodulation resource grain group of reference signal is associated with the quantity of the active antenna port associated by the subframe.The logical construction of Resource Unit
Schematic diagram is as shown in Figure 9.
Fig. 9 is the logical construction schematic diagram according to the Resource Unit 900 of one embodiment of the invention.The Resource Unit 900 (does not show positioned at a subframe
Go out) in, and in addition to the Resource Unit 900 shown in Fig. 9, the subframe also includes other Resource Unit (not shown).Resource shown in Fig. 9
Unit 900 is carried in frequency domain by same group of continuous subcarrier, and M subcarrier is included in this group of subcarrier.Additionally, the resource shown in Fig. 9
Unit 900 is carried on one group of continuous symbol in time domain, and N number of symbol is included in this group code.Least resource list in Resource Unit 900
Position remains as resource grains, such as resource grains 902, and each resource grains is by a symbols carry in a subcarrier and time domain in frequency domain.Consequently, it is possible to
Resource Unit 900 includes M × N number of resource grains.
Although it should be noted that the Resource Unit 900 shown in Fig. 9 is carried in frequency domain by same group of continuous subcarrier, one group is carried in time domain
On continuous symbol, but the present invention is not limited only to this.In fact, the Resource Unit can also be carried by one group of discrete subcarrier, and hold
It is loaded on one group of discrete symbol.Further, carry the Resource Unit one group of subcarrier can continuously can also be discontinuous, carry
One group code of the Resource Unit can also continuously can also be discontinuous.
Consequently, it is possible to above-mentioned subframe just can use following structure：The subframe includes multiple Resource Units, each Resource Unit by one group it is continuous or
Discrete subcarrier is carried, and be carried on that one group continuous or discrete symbol on.The Resource Unit includes multiple demodulation resource grain groups, often
Individual demodulation resource grain group includes multiple resource grains；Each demodulation resource grain group carries the demodulated reference signal of single or multiple active antenna ports；
In each Resource Unit, the quantity of the demodulation resource grain group of the demodulated reference signal of same active antenna port and the work associated by the subframe are carried
The quantity of jump antenna port is associated.
Additionally, being based on above-mentioned subframe structure：
In each Resource Unit, if the quantity of the active antenna port being associated with the subframe is more than or equal to 13 and less than or equal to 24, carry same
The quantity of the demodulation resource grain group of the demodulated reference signal of one active antenna port is 1.Likewise, the active antenna port being associated with the subframe
Numerical lower limits 13 and the upper limit 24, and carry the quantity 1 of the demodulation resource grain group of the demodulated reference signal of same active antenna port, can root
According to specifically needing to be revised as the first numerical value and second value, and third value.
Additionally, being based on above-mentioned subframe structure：
In each Resource Unit, if the quantity of the active antenna port being associated with the subframe is more than or equal to 9 and less than or equal to 12, carry same
The quantity of the demodulation resource grain group of the demodulated reference signal of one active antenna port is 2.Likewise, the active antenna port being associated with the subframe
Numerical lower limits 9 and the upper limit 12, and carry the quantity 2 of the demodulation resource grain group of the demodulated reference signal of same active antenna port, can root
According to specifically needing to be revised as the 4th numerical value and the 5th numerical value, and the 6th numerical value.
Additionally, being based on above-mentioned subframe structure：
In each Resource Unit, if the quantity of the active antenna port being associated with the subframe carries same more than or equal to 1 and less than or equal to 8
The quantity of the demodulation resource grain group of the demodulated reference signal of active antenna port is 3.Likewise, the active antenna port being associated with the subframe
Numerical lower limits 1 and the upper limit 8, and the quantity 3 of the demodulation resource grain group of the demodulated reference signal of same active antenna port is carried, can be according to tool
Body needs to be revised as the 7th numerical value and the 8th numerical value, and the 9th numerical value.
Meanwhile, based on above-mentioned subframe structure, each Resource Unit can include 4 comprising 6 demodulation resource grain groups, each demodulation resource grain group
Resource grains.
Additionally, in each Resource Unit, carrying the quantity of demodulation resource grain group of the demodulated reference signal of same active antenna port with the son
The increase of the quantity of the active antenna port associated by frame and reduce, increase with the reduction of the quantity of the active antenna port associated by the subframe.
Meanwhile, during implementing, the resource grains that can be set according to specific needs in the demodulation resource grain group for carrying demodulated reference signal exist
Position in Resource Unit.Meanwhile, can be used orthogonal covering codes (Orthogonal Cover Code, OCC) to realize code division multiplexing, so as to
The demodulated reference signal of multiple active antenna ports is carried in each demodulation resource grain group.In the length of orthogonal covering codes and each demodulation resource grain group
The quantity of resource grains is relevant.Meanwhile, the demodulated reference signal of active antenna port is carried in demodulation resource grain group the process in each resource grains,
And the demodulated reference signal of multiple active antenna ports is carried in the mistake of same demodulation resource grain group by orthogonal covering codes in CDMA mode
Journey, has been carried out clearly describing in prior art (such as LTE relevant criterions), therefore here is omitted.
It should be noted that it will be appreciated by those skilled in the art that, although subframe structure is different, the channel estimation methods of the subframe based on the structure are still
May be referred to process described above process to realize, for example, the subframe being related in channel estimation methods 200 to be replaced with the subframe of other structures
(subframe for for example being designed based on Resource Unit above), just can obtain the channel estimation methods based on subframe after replacing.Similarly, although subframe knot
Structure is different, but the sending ending equipment of the subframe based on the structure, receiving device and communication equipment still may be referred to above-described relevant device
To realize, for example, the subframe being related in sending ending equipment 600, receiving device 700 and communication equipment 800 is replaced with the subframe of other structures,
Just can obtain based on the sending ending equipment of subframe, receiving device and communication equipment after replacing.
Moreover, it is noted that although subframe structure is different, title identical feature such as demodulation resource grain group can have in different structure subframe
Identical implication.
Those of ordinary skill in the art understand that all or part of step in the above method can be completed by the related hardware of programmed instruction, the journey
Sequence can be stored in a computer-readable recording medium, the computer-readable recording medium such as ROM, RAM and CD etc..
In sum, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.It is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (20)
1. a kind of channel estimation methods, it is characterised in that including：
A subframe is generated, the subframe includes multiple Resource Block pair, each Resource Block is continuously sub by one group of identical to two Resource Block for being included
Carriers carry and adhere to different time slots separately；Each Resource Block is to comprising multiple demodulation resources grain group, each demodulation resource grain group includes multiple resource grains；
Each demodulation resource grain group carries the demodulated reference signal of multiple active antenna ports；In each Resource Block internally, same active antenna end is carried
The quantity of the demodulation resource grain group of the demodulated reference signal of mouth is associated with the quantity of the active antenna port associated by the subframe；
Send the subframe.
2. the method for claim 1, it is characterised in that, if the active antenna end being associated with the subframe in each Resource Block internally
More than or equal to 13 and less than or equal to 24, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is the quantity of mouth
1。
3. the method for claim 1, it is characterised in that, if the active antenna end being associated with the subframe in each Resource Block internally
More than or equal to 9 and less than or equal to 12, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is the quantity of mouth
2。
4. the method for claim 1, it is characterised in that, if the active antenna end being associated with the subframe in each Resource Block internally
More than or equal to 1 and less than or equal to 8, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 3 to the quantity of mouth.
5. the method as any one of Claims 1-4, it is characterised in that each Resource Block to comprising 6 demodulation resources grain groups, often
Individual demodulation resource grain group includes 4 resource grains.
6. a kind of channel estimation methods, it is characterised in that including：
A subframe is received, the subframe includes multiple Resource Block pair, each Resource Block is continuously sub by one group of identical to two Resource Block for being included
Carriers carry and adhere to different time slots separately；Each Resource Block is to comprising multiple demodulation resources grain group, each demodulation resource grain group includes multiple resource grains；
Each demodulation resource grain group carries the demodulated reference signal of multiple active antenna ports；In each Resource Block internally, same active antenna end is carried
The quantity of the demodulation resource grain group of the demodulated reference signal of mouth is associated with the quantity of the active antenna port associated by the subframe；
For each active antenna port, according to the corresponding demodulated reference signal in active antenna port carried in the subframe, to the active day
Line end mouthful carries out channel estimation.
7. method as claimed in claim 6, it is characterised in that, if the active antenna end being associated with the subframe in each Resource Block internally
More than or equal to 13 and less than or equal to 24, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is the quantity of mouth
1。
8. method as claimed in claim 6, it is characterised in that, if the active antenna end being associated with the subframe in each Resource Block internally
More than or equal to 9 and less than or equal to 12, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is the quantity of mouth
2。
9. method as claimed in claim 6, it is characterised in that, if the active antenna end being associated with the subframe in each Resource Block internally
More than or equal to 1 and less than or equal to 8, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is 3 to the quantity of mouth.
10. the method as any one of claim 6 to 9, it is characterised in that each Resource Block to comprising 6 demodulation resources grain groups,
Each demodulation resource grain group includes 4 resource grains.
A kind of 11. sending ending equipments, it is characterised in that including：
Generation module, for generating a subframe, the subframe includes multiple Resource Block pair, and each Resource Block is to two Resource Block for being included by identical
One group of continuous subcarrier carry and adhere to different time slots separately；Each Resource Block is to comprising multiple demodulation resources grain group, each demodulation resource grain group
Comprising multiple resource grains；Each demodulation resource grain group carries the demodulated reference signal of multiple active antenna ports；In each Resource Block internally, hold
The quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is related to the quantity of the active antenna port associated by the subframe
Connection；
Sending module, for sending the subframe.
12. equipment as claimed in claim 11, it is characterised in that, if the active antenna being associated with the subframe in each Resource Block internally
The quantity of port then carries the quantity of the demodulation resource grain group of the demodulated reference signal of same active antenna port more than or equal to 13 and less than or equal to 24
It is 1.
13. equipment as claimed in claim 11, it is characterised in that, if the active antenna being associated with the subframe in each Resource Block internally
The quantity of port then carries the quantity of the demodulation resource grain group of the demodulated reference signal of same active antenna port more than or equal to 9 and less than or equal to 12
It is 2.
14. equipment as claimed in claim 11, it is characterised in that, if the active antenna being associated with the subframe in each Resource Block internally
More than or equal to 1 and less than or equal to 8, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is the quantity of port
3。
15. equipment as any one of claim 11 to 14, it is characterised in that each Resource Block to comprising 6 demodulation resources grain groups,
Each demodulation resource grain group includes 4 resource grains.
A kind of 16. receiving devices, it is characterised in that including：
Receiver module, for receiving a subframe, the subframe includes multiple Resource Block pair, and each Resource Block is to two Resource Block for being included by identical
One group of continuous subcarrier carry and adhere to different time slots separately；Each Resource Block is to comprising multiple demodulation resources grain group, each demodulation resource grain group
Comprising multiple resource grains；Each demodulation resource grain group carries the demodulated reference signal of multiple active antenna ports；In each Resource Block internally, hold
The quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is related to the quantity of the active antenna port associated by the subframe
Connection；
Channel estimation module, for for each active antenna port, according to the corresponding demodulation ginseng in the active antenna port carried in the subframe
Signal is examined, channel estimation is carried out to the active antenna port.
17. equipment as claimed in claim 16, it is characterised in that, if the active antenna being associated with the subframe in each Resource Block internally
The quantity of port then carries the quantity of the demodulation resource grain group of the demodulated reference signal of same active antenna port more than or equal to 13 and less than or equal to 24
It is 1.
18. equipment as claimed in claim 16, it is characterised in that, if the active antenna being associated with the subframe in each Resource Block internally
The quantity of port then carries the quantity of the demodulation resource grain group of the demodulated reference signal of same active antenna port more than or equal to 9 and less than or equal to 12
It is 2.
19. equipment as claimed in claim 16, it is characterised in that, if the active antenna being associated with the subframe in each Resource Block internally
More than or equal to 1 and less than or equal to 8, then the quantity for carrying the demodulation resource grain group of the demodulated reference signal of same active antenna port is the quantity of port
3。
20. equipment as any one of claim 16 to 19, it is characterised in that each Resource Block to comprising 6 demodulation resources grain groups,
Each demodulation resource grain group includes 4 resource grains.
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| CN201511006101.0A CN106921479B (en) | 2015-12-28 | 2015-12-28 | Channel estimation method, sending end equipment and receiving end equipment |
| PCT/CN2016/103266 WO2017113959A1 (en) | 2015-12-28 | 2016-10-25 | Channel estimation method, transmitting terminal device, and receiving terminal device |
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| CN113259287A (en) * | 2020-02-13 | 2021-08-13 | 华为技术有限公司 | Communication method and device |
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