CN101459462B - A kind of sending method of reference signal - Google Patents
A kind of sending method of reference signal Download PDFInfo
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- CN101459462B CN101459462B CN200810190127.9A CN200810190127A CN101459462B CN 101459462 B CN101459462 B CN 101459462B CN 200810190127 A CN200810190127 A CN 200810190127A CN 101459462 B CN101459462 B CN 101459462B
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- 125000004122 cyclic group Chemical group 0.000 claims description 103
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- 235000005035 ginseng Nutrition 0.000 claims description 26
- 235000008434 ginseng Nutrition 0.000 claims description 26
- 230000000875 corresponding Effects 0.000 claims description 15
- 241000208340 Araliaceae Species 0.000 claims 5
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 240000004678 Panax pseudoginseng Species 0.000 description 21
- 238000001228 spectrum Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 230000003595 spectral Effects 0.000 description 2
- 230000004931 aggregating Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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Abstract
The invention provides the sending method of a kind of reference signal, the reference signal of 8 antenna logic ports is divided into some groups, the reference signal that often group comprises is carried on the different carrier of identical symbol, respectively 8 antenna logic ports being divided into 4 groups or 3 groups, often group is carried on identical symbol.The sending method of a kind of reference signal that the present invention provides, ensures the performance of transmission while ensureing the fewest reference signal expense, and it is possible to good compatible existing LTE system, thus, it is achieved the MIMO transmission of high-order, improves the performance of system.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to the sending method of a kind of reference signal.
Background technology
It is a kind of multi-carrier modulation communication technology on OFDM (OFDM) technological essence, this skill
Art is one of core technology in forth generation mobile communication.On frequency domain, the multipath channel of OFDM presents
Go out frequency selective fading characteristic, in order to overcome this decline, channel is divided on frequency domain many height
Channel, the spectral characteristic of every sub-channels all near flat, and each sub-channels of OFDM is mutually orthogonal,
Therefore the frequency spectrum allowing subchannel is overlapped, such that it is able to very utilize frequency spectrum resource to limits.
MIMO technology can increase power system capacity, improve transmission performance, and can fine and other physical layer
Technological incorporation, therefore becomes the key technology of B3G and 4G mobile communication system.But, in channel phase
During Guan Xingqiang, multipath channel the diversity gain and the spatial multiplexing gain that bring are substantially reduced, and cause MIMO system
Declining to a great extent of system performance.Proposing a kind of new MIMO method for precoding in recent years, the method is a kind of
Efficient MIMO multiplex mode, mimo channel is melted into multiple by the precoding processing of sending and receiving end by it
Independent pseudo channel, effectively eliminates the impact of channel relevancy, so precoding technique ensure that
Mimo system stability under circumstances.
Long Term Evolution (Long Term Evolution, LTE) system is the weight of third generation partnership
Plan.The basic frame structure of LTE system as it is shown in figure 1, be divided into radio frames, field, subframe,
Time slot and four grades of symbol, wherein, a length of 10ms of a radio frames, radio frames by
Two field compositions, a length of 5ms of each field, a field is made up of, often 5 subframes
The a length of 1ms of individual subframe, a subframe is made up of two time slots, each time slot a length of
0.5ms；
When system uses conventional cyclic prefix when, time slot comprise 7 a length of 66.7us upper/
Downlink symbol, wherein first a length of 5.21us of symbol cyclic prefix, before the circulation of remaining 6 symbol
Sew a length of 4.69us；
When system uses extended cyclic prefix when, time slot comprise 6 a length of 66.7us upper/
Downlink symbol, the circulating prefix-length of each symbol is 16.67us；
One Resource Unit (Resource Element) is a subcarrier in an OFDM symbol,
And a downlink resource block (Resource Block, RB) is (long by continuous 12 subcarriers and continuous 7
The when of CP it is 6) OFDM symbol composition, frequency domain is 180kHz, time domain is one one
As the time span of time slot.When resource is distributed, it is allocated with Resource Block for ultimate unit.
As a example by 3GPP LTE (bandwidth 5M) system, altogether containing 512 subcarriers, wherein can use
Subcarrier is middle 300, and each Resource Block contains continuous 12 subcarriers, then 5M bandwidth is altogether
There are 25 Resource Block, as shown in Figure 2.
LTE system supports that the MIMO of 4 antennas applies, corresponding antenna port #0, antenna port #1,
Antenna port #2, antenna port #3 use the community publicly-owned reference signal (Cell-specific of full bandwidth
Reference signals, CRS) mode, when Cyclic Prefix is conventional cyclic prefix when, these are publicly-owned
Reference signal position in Physical Resource Block is as shown in Fig. 3-a, when Cyclic Prefix is extended cyclic prefix
When, these publicly-owned reference signal positions in Physical Resource Block are as shown in Fig. 3-b.It addition, also
Having the reference signal (UE-specific reference signals) that a kind of user is proprietary, this reference signal only exists
Physical Shared Channel (Physical downlink shared channel, the PDSCH) place that user is proprietary
Transmit on time-frequency domain position.
LTE-Advanced (Further Advancements for E-UTRA) is LTE Release-8
Evolution version.Except meeting or more than 3GPP TR 25.913: " Requirements for Evolved UTRA
(E-UTRA) and Evolved UTRAN (E-UTRAN) " all related needs outside, also to reach or
Demand more than the IMT-Advanced that ITU-R proposes.Wherein, with LTE Release-8 backward compatibility
Demand refer to: the terminal of LTE Release-8 can work in the network of LTE-Advanced；
The terminal of LTE-Advanced can work in the network of LTE Release-8.
It addition, LTE-Advanced should be able to be at different size of spectrum disposition, including ratio LTE Release-8
Work under broader spectrum disposition (such as the continuous print frequency spectrum resource of 100MHz), to reach higher property
Energy and Target peak rate.Owing to LTE-Advanced network is required to access LTE user, so
Its operational frequency bands needs to cover current LTE frequency band, this frequency range does not the most exist assignable continuously
The spectral bandwidth of 100MHz.So LTE-Advanced needs the direct technology solved to be by several
Individual distribution continuous component carrier frequency (frequency spectrum) (Component carrier) on different frequency bands is aggregating shape
Become the 100MHz bandwidth that LTE-Advanced can use.I.e. for the frequency spectrum after assembling, it is divided into
N component carrier frequency (frequency spectrum) (Component carrier), the frequency spectrum in each component carrier frequency (frequency spectrum)
It it is continuous print.
Demand behaviors report TR 36.814 V0.1.1 at the LTE-Advanced of in JIUYUE, 2008 proposition
In specify that the descending application that at most can support 8 antennas of LTE-Advanced.
At present, also there is no the sending method of 8 antenna reference signal.
Summary of the invention
The technical problem to be solved in the present invention is to provide the sending method of a kind of reference signal, it is achieved high-order
MIMO transmission, improves systematic function.
In order to solve the problems referred to above, the invention provides the sending method of a kind of reference signal, by 8 skies
The reference signal of line logic port is divided into some groups, and the reference signal that often group comprises is carried on identical symbol
Number different carrier on.
Further, said method also can have the characteristics that, by the ginseng of described 8 antenna logic ports
Examining signal and be divided into 4 groups, the reference signal of antenna logic port #0 and antenna logic port #1 is first
Group；The reference signal of antenna logic port #2 and the reference signal of antenna logic port #3 are second group；My god
The reference signal of line logic port #4 and the reference signal of antenna logic port #5 are the 3rd group；Antenna logic
The reference signal of port #6 and the reference signal of antenna logic port #7 are the 4th group.
Further, said method also can have the characteristics that, first group is carried in a subframe each
On first symbol of time slot and third last symbol；Second group is carried on each time slot in a subframe
Second symbol on；
3rd group is carried in a subframe on the penultimate symbol of first time slot；4th group of carrying
In a subframe on last symbol of first time slot；Or, the 3rd group is carried on a son
In frame on last symbol of first time slot, the 4th group is carried on first time slot in a subframe
Penultimate symbol on.
Further, said method also can have the characteristics that, first group is carried in a subframe each
On first symbol of time slot and third last symbol；Second group is carried on each time slot in a subframe
Second symbol on；
3rd group is carried in a subframe on the penultimate symbol of second time slot；4th group of carrying
In a subframe on last symbol of second time slot；Or, the 3rd group is carried on a son
In frame on last symbol of second time slot；4th group is carried on second time slot in a subframe
Penultimate symbol on.
Further, said method also can have the characteristics that, first group is carried in a subframe each
On first symbol of time slot and third last symbol；Second group is carried on each time slot in a subframe
Second symbol on；
3rd group is carried in a subframe on the penultimate symbol of each time slot；4th group is carried on
In one subframe on last symbol of each time slot；Or, the 3rd group is carried in a subframe
On last symbol of each time slot；4th group is carried on the inverse of each time slot in a subframe
On two symbols.
Further, said method also can have the characteristics that, first group is carried in a subframe each
On first symbol of time slot and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried on first symbol of each time slot in a subframe；In a subframe first
On first symbol of individual time slot, the reference signal of antenna logic port #4 and the ginseng of antenna logic port #0
Examine signal frequency domain position identical, carried by code division multiplexing；The reference signal of antenna logic port #5 and sky
The reference signal frequency domain position of line logic port #1 is identical, is carried by code division multiplexing；In a subframe
On first symbol of second time slot, the reference signal of antenna logic port #4 and antenna logic port #1
Reference signal frequency domain position identical, carried by code division multiplexing, the reference signal of antenna logic port #5
Identical with the reference signal frequency domain position of antenna logic port #0, carried by code division multiplexing；
4th group is carried on second symbol of each time slot in a subframe, each in a subframe
On second symbol of time slot, the reference signal of antenna logic port #6 and the reference of antenna logic port #2
Signal frequency domain position is identical, is carried by code division multiplexing, the reference signal of antenna logic port #7 and antenna
The reference signal frequency domain position of logic port #3 is identical, is carried by code division multiplexing.
Further, said method also can have the characteristics that, first group is carried in a subframe each
On first symbol of time slot and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried on second symbol of each time slot in a subframe, each in a subframe
On second symbol of time slot, the reference signal of antenna logic port #4 and the reference of antenna logic port #2
Signal frequency domain position is identical, is carried by code division multiplexing, the reference signal of antenna logic port #5 and antenna
The reference signal frequency domain position of logic port #3 is identical, is carried by code division multiplexing；
4th group is carried on first symbol of each time slot in a subframe；In a subframe first
On first symbol of individual time slot, the reference signal of antenna logic port #6 and the ginseng of antenna logic port #0
Examine signal frequency domain position identical, carried by code division multiplexing；The reference signal of antenna logic port #7 and sky
The reference signal frequency domain position of line logic port #1 is identical, is carried by code division multiplexing；In a subframe
On first symbol of second time slot, the reference signal of antenna logic port #6 and antenna logic port #1
Reference signal frequency domain position identical, carried by code division multiplexing, the reference signal of antenna logic port #7
Identical with the reference signal frequency domain position of antenna logic port #0, carried by code division multiplexing.
Further, said method also can have the characteristics that, first group is carried in a subframe each
On first symbol of time slot and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
The 3rd group of third last symbol being carried on first time slot in a subframe and second time slot
On second symbol；In a subframe on the third last symbol of first time slot, antenna logic end
The reference signal of mouth #4 is identical with the reference signal frequency domain position of antenna logic port #0, passes through code division multiplexing
Carrying, the reference signal of antenna logic port #5 and the reference signal frequency domain position phase of antenna logic port #1
With, carried by code division multiplexing；In a subframe on second symbol of second time slot, antenna is patrolled
The reference signal collecting port #4 is identical with the reference signal frequency domain position of antenna logic port #2, passes through code division
Multiplexing carries, the reference signal of antenna logic port #5 and the reference signal frequency domain position of antenna logic port #3
Put identical, carried by code division multiplexing；
On 4th group of first symbol being carried on second time slot in a subframe and the falling of second time slot
On several 3rd symbols, in a subframe on first symbol of second time slot and second time slot
On third last symbol, the reference signal of antenna logic port #6 and the reference letter of antenna logic port #0
Number frequency domain position is identical, is carried by code division multiplexing, and reference signal and the antenna of antenna logic port #7 are patrolled
The reference signal frequency domain position collecting port #1 is identical, is carried by code division multiplexing.
Further, said method also can have the characteristics that, first group is carried in a subframe each
On first symbol of time slot and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
On 3rd group of first symbol being carried on second time slot in a subframe and the falling of second time slot
On several 3rd symbols, in a subframe on first symbol of second time slot and second time slot
On third last symbol, the reference signal of antenna logic port #4 and the reference letter of antenna logic port #0
Number frequency domain position is identical, is carried by code division multiplexing, and reference signal and the antenna of antenna logic port #5 are patrolled
The reference signal frequency domain position collecting port #1 is identical, is carried by code division multiplexing；
The 4th group of third last symbol being carried on first time slot in a subframe and second time slot
On second symbol；In a subframe on the third last symbol of first time slot, antenna logic end
The reference signal of mouth #6 is identical with the reference signal frequency domain position of antenna logic port #0, passes through code division multiplexing
Carrying, the reference signal of antenna logic port #7 and the reference signal frequency domain position phase of antenna logic port #1
With, carried by code division multiplexing；In a subframe on second symbol of second time slot, antenna is patrolled
The reference signal collecting port #6 is identical with the reference signal frequency domain position of antenna logic port #2, passes through code division
Multiplexing carries, the reference signal of antenna logic port #7 and the reference signal frequency domain position of antenna logic port #3
Put identical, carried by code division multiplexing；
Further, said method also can have the characteristics that, first group is carried in a subframe each
On first symbol of time slot and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried on first symbol of second time slot in a subframe, wherein, at described symbol
On number, the reference signal of antenna logic port #4 and the reference signal frequency domain position phase of antenna logic port #0
With, carried by code division multiplexing, the reference signal of antenna logic port #5 and the ginseng of antenna logic port #1
Examine signal frequency domain position identical, carried by code division multiplexing；
4th group is carried on second symbol of second time slot in a subframe, wherein, at described symbol
On number, the reference signal of antenna logic port #6 and the reference signal frequency domain position phase of antenna logic port #3
With, carried by code division multiplexing, the reference signal of antenna logic port #7 and the ginseng of antenna logic port #2
Examine signal frequency domain position identical, carried by code division multiplexing.
Further, said method also can have the characteristics that, first group is carried in a subframe each
On first symbol of time slot and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried on second symbol of second time slot in a subframe, wherein, at described symbol
On number, the reference signal of antenna logic port #4 and the reference signal frequency domain position phase of antenna logic port #3
With, carried by code division multiplexing, the reference signal of antenna logic port #5 and the ginseng of antenna logic port #2
Examine signal frequency domain position identical, carried by code division multiplexing；
4th group is carried on first symbol of second time slot in a subframe, wherein, at described symbol
On number, the reference signal of antenna logic port #6 and the reference signal frequency domain position phase of antenna logic port #0
With, carried by code division multiplexing, the reference signal of antenna logic port #7 and the ginseng of antenna logic port #1
Examine signal frequency domain position identical, carried by code division multiplexing.
Further, said method also can have the characteristics that, the reference letter on each antenna logic port
It is spaced apart 6 number on the frequency domain of a symbol；The neighboring reference of different antennae logic port in same group
Signal is spaced apart 3, in the target resource block on the symbol of reference signal place on the frequency domain of a symbol
Carry 4 reference signals, adhere to two antenna logic ports separately, corresponding two ginsengs of each antenna logic port
Examine signal；Reference signal on each antenna logic port is in the same resource block of adjacent-symbol between frequency domain
It is divided into 3.
Further, said method also can have the characteristics that, described 8 logical signals are divided into 3 groups,
The reference signal of antenna logic port #0 and the reference signal of antenna logic port #1 are first group；Antenna is patrolled
Collect the reference signal of port #2 and the reference signal of antenna logic port #3 is second group；Antenna logic port
The reference signal of #4, the reference signal of antenna logic port #5, the reference signal of antenna logic port #6
It it is the 3rd group with the reference signal of antenna logic port #7.
Further, said method also can have the characteristics that, first group is carried in a subframe each
On first symbol of time slot and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried on last symbol of first time slot in a subframe；
Or, the 3rd group is carried in a subframe on the penultimate symbol of first time slot；
Or, the 3rd group is carried in a subframe on the third last symbol of first time slot；
Or, the 3rd group is carried on the 4th symbol of first time slot in a subframe；
Or, the 3rd group is carried on last symbol of each time slot in a subframe；
Or, the 3rd group is carried in a subframe on the penultimate symbol of each time slot；
Or, the 3rd group is carried in a subframe on the third last symbol of each time slot；
Or, the 3rd group is carried on the 4th symbol of each time slot in a subframe；
Or, on the 3rd group of the 4th symbol being carried on first time slot in a subframe and when second
On the penultimate symbol of gap；
Or, the 3rd group is carried on last symbol of second time slot in a subframe；
Or, the 3rd group is carried in a subframe on the penultimate symbol of second time slot；
Or, the 3rd group is carried in a subframe on the third last symbol of second time slot；
Or, the 3rd group is carried on the 3rd symbol of second time slot in a subframe.
Further, said method also can have the characteristics that, the reference letter of described antenna logic port #4
Number identical with the frequency domain position of the reference signal of antenna logic port #6, carried by code division multiplexing, antenna
The reference signal of logic port #5 is identical with the frequency domain position of the reference signal of antenna logic port #7, passes through
Code division multiplexing carries；
Or, in the 3rd group, frequency domain position is not in same symbol for the reference signal of each antenna logic port
With.
Further, said method also can have the characteristics that, the reference letter on each antenna logic port
It is spaced apart 6 number on the frequency domain of a symbol.
Further, said method also can have the characteristics that, one subframe comprises two time slots,
When system uses conventional cyclic prefix when, a time slot comprises 7 symbols；When system uses extension
The when of Cyclic Prefix, a time slot comprises 6 symbols.
Further, said method also can have the characteristics that, described antenna logic port #0, antenna are patrolled
Volume port #1, antenna logic port #2, the reference signal of antenna logic port #3 are the reference that community is publicly-owned
Signal, antenna logic port #4, antenna logic port #5, antenna logic port #6, antenna logic port
The reference signal of #7 first time slot in subframe is the publicly-owned reference signal in community or one or more spy
Determining the reference signal that user is proprietary, second time slot in subframe is the reference signal or that community is publicly-owned
The reference signal that individual or multiple specific user is proprietary.
Further, said method also can have the characteristics that, described reference signal is publicly-owned reference signal
And/or special reference signal, the configuration of described publicly-owned reference signal and/or special reference signal carries according to component
Frequency carries out configuring or configuring according to subframe.
Further, said method also can have the characteristics that, described symbol is OFDM symbol.
Further, said method also can have the characteristics that, the reference letter on each antenna logic port
Number determine by cell ID at the initial position of frequency domain.
Further, said method also can have the characteristics that, described antenna logic port #0, antenna are patrolled
Collect port #1, antenna logic port #2, antenna logic port #3 corresponding to antenna port #0, antenna port
#1, antenna port #2, antenna port #3；
Antenna logic port #4, antenna logic port #5, antenna logic port #6, antenna logic port #7
Corresponding to antenna port #k+3, antenna port #k+4, antenna port #k+5, antenna port #k+6, its
In, k is positive integer.
The invention provides the sending method of a kind of reference signal, ensure the fewest reference signal expense
While ensure the performance of transmission, and it is possible to good compatible existing LTE system, thus, real
The MIMO transmission of existing high-order, improves the performance of system.
Accompanying drawing explanation
Fig. 1 is the basic frame structure schematic diagram of LTE system；
The schematic diagram of Resource Block when that Fig. 2 being LTE system band a width of 5MHz；
Fig. 3-a and Fig. 3-b is reference signal position in Physical Resource Block that LTE system community is publicly-owned
Schematic diagram；
Fig. 4～Figure 26 is the concrete carrier position enforcement that the present invention carries the reference signal of eight antenna ports
Example.
Detailed description of the invention
For the ease of the profound understanding present invention, 4-26 below in conjunction with the accompanying drawings, be given and comprise signal of the present invention and send out
Some specific embodiments of delivery method.
In Fig. 4～Figure 26, the reference signal frequency domain position of each antenna logic port can be along with cell ID
Change and change, and the relative position relation between the reference signal of each antenna logic port is constant；
The reference signal of each antenna logic port frequency domain original position in a Physical Resource Block is less than
5, wherein, frequency domain position numbered #0, #1, #2, #3, #4, the #5 in a Physical Resource Block,
#6, #7, #8, #9, #10, #11；
Label T in figure1、T2、T3、T4、T5、T6、T7、T8Correspond respectively to antenna logic port #0,
Antenna logic port #1, antenna logic port #2, antenna logic port #3, antenna logic port #4, sky
Line logic port #5, antenna logic port #6, the reference signal of antenna logic port #7 provide at a physics
Position in the block of source；
Antenna logic port #0, antenna logic port #1, antenna logic port #2, antenna logic port #3
Corresponding to antenna port #0, antenna port #1, antenna port #2, antenna port #3；
Antenna logic port #4, antenna logic port #5, antenna logic port #6, antenna logic port #7
Corresponding to antenna port #k+3, antenna port #k+4, antenna port #k+5, antenna port #k+6, its
In, k can be positive integer.
The numbering of OFDM symbol during label 1 represents a Physical Resource Block in figure, from 0 open numbering.
Method one:
The reference signal of 8 antenna logic ports is divided into 4 groups, and the reference signal that often group comprises is carried on
On the different carrier of same-sign.Reference signal on each antenna logic port is at the frequency domain of a symbol
On be spaced apart 6；In each group, the reference signal of antenna logic port is mapped on same symbol.Often
Reference signal on individual antenna logic port is spaced apart 6, in same group not on the frequency domain of a symbol
On the frequency domain of a symbol, it is spaced apart 3, reference signal with the neighboring reference signal of antenna logic port
In target resource block on the symbol of place, 4 reference signals of carrying, adhere to two antenna logic ports separately, often
Corresponding two reference signals of individual antenna logic port；Reference signal on each antenna logic port is adjacent
In the same resource block of symbol, frequency domain interval is 3.It is specifically shown in embodiment 1-4 and embodiment 7, accompanying drawing 4
-7,26.
Embodiment 1
The reference signal of antenna logic port #0 and the reference signal of antenna logic port #1 are first group；
The reference signal of antenna logic port #2 and the reference signal of antenna logic port #3 are second group；
The reference signal of antenna logic port #4 and the reference signal of antenna logic port #5 are the 3rd group；
The reference signal of antenna logic port #6 and the reference signal of antenna logic port #7 are the 4th group；
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；3rd group is carried on a subframe
In first time slot penultimate symbol on；4th group is carried on first time slot in a subframe
On last symbol；
Reference signal on each antenna logic port is spaced apart 6 on the frequency domain of a symbol, same
In group, the neighboring reference signal of different antennae logic port is spaced apart 3 on the frequency domain of a symbol, ginseng
Examine 4 reference signals of carrying in the target resource block on the symbol of signal place, adhere to two antenna logic ends separately
Mouthful, corresponding two reference signals of each antenna logic port；Reference signal on each antenna logic port
In the same resource block of adjacent-symbol, frequency domain interval is 3.
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as depicted in fig. 4-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Fig. 4-b.
Or, first group of first symbol being carried on each time slot in a subframe and third last symbol
On number；Second group is carried on second symbol of each time slot in a subframe；3rd group is carried on one
In individual subframe on last symbol of first time slot；4th group is carried in a subframe first
On the penultimate symbol of time slot；
Or, first group of first symbol being carried on each time slot in a subframe and third last symbol
On number；Second group is carried on second symbol of each time slot in a subframe；3rd group is carried on one
In individual subframe on the penultimate symbol of second time slot；4th group is carried in a subframe second
On last symbol of time slot；Or the 3rd group is carried on the inverse of second time slot in a subframe
On first symbol；4th group is carried in a subframe on the penultimate symbol of second time slot.
Embodiment 2
The reference signal of antenna logic port #0 and the reference signal of antenna logic port #1 are first group；
The reference signal of antenna logic port #2 and the reference signal of antenna logic port #3 are second group；
The reference signal of antenna logic port #4 and the reference signal of antenna logic port #5 are the 3rd group；
The reference signal of antenna logic port #6 and the reference signal of antenna logic port #7 are the 4th group；
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried on first symbol of each time slot in a subframe, wherein at first time slot
First symbol on, the reference signal of antenna logic port #4 and the reference signal of antenna logic port #0
Frequency domain position is identical, is carried by code division multiplexing, the reference signal of antenna logic port #5 and antenna logic
The reference signal frequency domain position of port #1 is identical, is carried by code division multiplexing；In a subframe second
On first symbol of time slot, the reference signal of antenna logic port #4 and the reference of antenna logic port #1
Signal frequency domain position is identical, is carried by code division multiplexing, the reference signal of antenna logic port #5 and antenna
The reference signal frequency domain position of logic port #0 is identical, is carried by code division multiplexing；
4th group is carried on second symbol of each time slot in a subframe, wherein, at described symbol
On, the reference signal of antenna logic port #6 and the reference signal frequency domain position phase of antenna logic port #2
With, carried by code division multiplexing, the reference signal of antenna logic port #7 and the ginseng of antenna logic port #3
Examine signal frequency domain position identical, carried by code division multiplexing；
Reference signal on each antenna logic port is spaced apart 6 on the frequency domain of a symbol, same
In group, the neighboring reference signal of different antennae logic port is spaced apart 3 on the frequency domain of a symbol, ginseng
Examine 4 reference signals of carrying in the target resource block on the symbol of signal place, adhere to two antenna logic ends separately
Mouthful, corresponding two reference signals of each antenna logic port；Reference signal on each antenna logic port
In the same resource block of adjacent-symbol, frequency domain interval is 3；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Fig. 5-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Fig. 5-b.
Further, in this embodiment, the position of the 3rd group and the 4th group reference signal can exchange, it may be assumed that
3rd group is carried on second symbol of each time slot in a subframe, wherein, at described symbol
On, the reference signal of antenna logic port #4 and the reference signal frequency domain position phase of antenna logic port #2
With, carried by code division multiplexing, the reference signal of antenna logic port #5 and the ginseng of antenna logic port #3
Examine signal frequency domain position identical, carried by code division multiplexing；
4th group is carried on first symbol of each time slot in a subframe, wherein at first time slot
First symbol on, the reference signal of antenna logic port #6 and the reference signal of antenna logic port #0
Frequency domain position is identical, is carried by code division multiplexing, the reference signal of antenna logic port #7 and antenna logic
The reference signal frequency domain position of port #1 is identical, is carried by code division multiplexing；In a subframe second
On first symbol of time slot, the reference signal of antenna logic port #6 and the reference of antenna logic port #1
Signal frequency domain position is identical, is carried by code division multiplexing, the reference signal of antenna logic port #7 and antenna
The reference signal frequency domain position of logic port #0 is identical, is carried by code division multiplexing；
Embodiment 3
The reference signal of antenna logic port #0 and the reference signal of antenna logic port #1 are first group；
The reference signal of antenna logic port #2 and the reference signal of antenna logic port #3 are second group；
The reference signal of antenna logic port #4 and the reference signal of antenna logic port #5 are the 3rd group；
The reference signal of antenna logic port #6 and the reference signal of antenna logic port #7 are the 4th group；
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
The 3rd group of third last symbol being carried on first time slot in a subframe and second time slot
On second symbol, wherein, in a subframe on the third last symbol of first time slot, antenna
The reference signal of logic port #4 is identical, by code with the reference signal frequency domain position of antenna logic port #0
Divide multiplexing carrying, the reference signal of antenna logic port #5 and the reference signal frequency domain of antenna logic port #1
Position is identical, is carried by code division multiplexing；In a subframe on second symbol of second time slot,
The reference signal of antenna logic port #4 is identical with the reference signal frequency domain position of antenna logic port #2, logical
Cross code division multiplexing carrying, the reference signal of antenna logic port #5 and the reference signal of antenna logic port #3
Frequency domain position is identical, is carried by code division multiplexing；
On 4th group of first symbol being carried on second time slot in a subframe and the falling of second time slot
On several 3rd symbols, wherein, on described symbol, the reference signal of antenna logic port #6 and antenna
The reference signal frequency domain position of logic port #0 is identical, is carried by code division multiplexing, antenna logic port #7
Reference signal identical with the reference signal frequency domain position of antenna logic port #1, carried by code division multiplexing；
Reference signal on each antenna logic port is spaced apart 6 on the frequency domain of a symbol, same
In group, the neighboring reference signal of different antennae logic port is spaced apart 3 on the frequency domain of a symbol, ginseng
Examine 4 reference signals of carrying in the target resource block on the symbol of signal place, adhere to two antenna logic ends separately
Mouthful, corresponding two reference signals of each antenna logic port；Reference signal on each antenna logic port
In the same resource block of adjacent-symbol, frequency domain interval is 3；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Fig. 6-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Fig. 6-b.
Further, in this embodiment, the position of the 3rd group and the 4th group reference signal can exchange, it may be assumed that
On 3rd group of first symbol being carried on second time slot in a subframe and the falling of second time slot
On several 3rd symbols, wherein, on described symbol, the reference signal of antenna logic port #4 and antenna
The reference signal frequency domain position of logic port #0 is identical, is carried by code division multiplexing, antenna logic port #5
Reference signal identical with the reference signal frequency domain position of antenna logic port #1, carried by code division multiplexing；
The 4th group of third last symbol being carried on first time slot in a subframe and second time slot
On second symbol, wherein, in a subframe on the third last symbol of first time slot, antenna
The reference signal of logic port #6 is identical, by code with the reference signal frequency domain position of antenna logic port #0
Divide multiplexing carrying, the reference signal of antenna logic port #7 and the reference signal frequency domain of antenna logic port #1
Position is identical, is carried by code division multiplexing；In a subframe on second symbol of second time slot,
The reference signal of antenna logic port #6 is identical with the reference signal frequency domain position of antenna logic port #2, logical
Cross code division multiplexing carrying, the reference signal of antenna logic port #7 and the reference signal of antenna logic port #3
Frequency domain position is identical, is carried by code division multiplexing；
Embodiment 4
The reference signal of antenna logic port #0 and the reference signal of antenna logic port #1 are first group；
The reference signal of antenna logic port #2 and the reference signal of antenna logic port #3 are second group；
The reference signal of antenna logic port #4 and the reference signal of antenna logic port #5 are the 3rd group；
The reference signal of antenna logic port #6 and the reference signal of antenna logic port #7 are the 4th group；
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried on first symbol of second time slot in a subframe, wherein, at described symbol
On number, the reference signal of antenna logic port #4 and the reference signal frequency domain position phase of antenna logic port #0
With, carried by code division multiplexing, the reference signal of antenna logic port #5 and the ginseng of antenna logic port #1
Examine signal frequency domain position identical, carried by code division multiplexing；
4th group is carried on second symbol of second time slot in a subframe, wherein, at described symbol
On number, the reference signal of antenna logic port #6 and the reference signal frequency domain position phase of antenna logic port #3
With, carried by code division multiplexing, the reference signal of antenna logic port #7 and the ginseng of antenna logic port #2
Examine signal frequency domain position identical, carried by code division multiplexing；
Reference signal on each antenna logic port is spaced apart 6 on the frequency domain of a symbol, same
In group, the neighboring reference signal of different antennae logic port is spaced apart 3 on the frequency domain of a symbol, ginseng
Examine 4 reference signals of carrying in the target resource block on the symbol of signal place, adhere to two antenna logic ends separately
Mouthful, corresponding two reference signals of each antenna logic port；Reference signal on each antenna logic port
In the same resource block of adjacent-symbol, frequency domain interval is 3；If i.e. one reference signal is mapped in one
When being mapped in subframe in multiple OFDM symbol, the start bit in Physical Resource Block on adjacent-symbol
Putting difference is 3, the such as reference signal of port 0 first time slot of subframe first symbol, fall
Several 3rd symbols, first symbol of second time slot, third last symbol, the frequency domain of its correspondence
Original position is 0,3,0,3, it is spaced apart 3；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Fig. 7-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Fig. 7-b.
Further, in this embodiment, the position of the 3rd group and the 4th group reference signal can exchange, it may be assumed that
3rd group is carried on second symbol of second time slot in a subframe, wherein, at described symbol
On number, the reference signal of antenna logic port #4 and the reference signal frequency domain position phase of antenna logic port #3
With, carried by code division multiplexing, the reference signal of antenna logic port #5 and the ginseng of antenna logic port #2
Examine signal frequency domain position identical, carried by code division multiplexing；
4th group is carried on first symbol of second time slot in a subframe, wherein, at described symbol
On number, the reference signal of antenna logic port #6 and the reference signal frequency domain position phase of antenna logic port #0
With, carried by code division multiplexing, the reference signal of antenna logic port #7 and the ginseng of antenna logic port #1
Examine signal frequency domain position identical, carried by code division multiplexing；
Method two
The reference signal of 8 antenna logic ports is divided into 3 groups, and the reference signal that often group comprises is carried on
On the different carrier of same-sign, the reference signal on each antenna logic port is at the frequency domain of a symbol
On be spaced apart 6；In each group, the reference signal of antenna logic port is mapped on same symbol.Tool
Body is shown in embodiment 5 and 6, Fig. 8-25.
Embodiment 5
The reference signal of 8 antenna logic ports is divided into 3 groups, and the reference signal that often group comprises is carried on
On the different carrier of same-sign；Reference signal on each antenna logic port is at the frequency domain of a symbol
On be spaced apart 6；In each group, the reference signal of antenna logic port is mapped on same symbol.
The reference signal of antenna logic port #0 and the reference signal of antenna logic port #1 are first group；
The reference signal of antenna logic port #2 and the reference signal of antenna logic port #3 are second group；
The reference signal of antenna logic port #4, the reference signal of antenna logic port #5, antenna logic end
The mouth reference signal of #6 and the reference signal of antenna logic port #7 are the 3rd group；
On first group of first symbol being carried on each time slot and third last symbol；Second group of carrying
On second symbol of each time slot；
In 3rd group, the reference signal of each antenna logic port frequency domain position in same symbol is different；
Wherein,
3rd group is carried on last symbol of first time slot in a subframe；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in fig 8-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Fig. 8-b；
Or,
3rd group is carried in a subframe on the penultimate symbol of first time slot；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Fig. 9-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Fig. 9-b；
Or,
3rd group is carried in a subframe on the third last symbol of first time slot；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 10-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 10-b；
Or,
3rd group is carried on the 4th symbol of first time slot in a subframe；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 11-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 11-b；
Or,
3rd group is carried on last symbol of each time slot in a subframe；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 12-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 12-b；
Or,
3rd group is carried in a subframe on the penultimate symbol of each time slot；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 13-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 13-b；
Or,
3rd group is carried in a subframe on the third last symbol of each time slot；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 14-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 14-b；
Or,
3rd group is carried on the 4th symbol of each time slot in a subframe；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 15-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 15-b；
Or,
On 3rd group of the 4th symbol being carried on first time slot in a subframe and the falling of second time slot
On several second symbol；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 16-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 16-b；
Or, the 3rd group is carried on last symbol of second time slot in a subframe；
Or, the 3rd group is carried in a subframe on the penultimate symbol of second time slot；
Or, the 3rd group is carried in a subframe on the third last symbol of second time slot；
Or, the 3rd group is carried on the 3rd symbol of second time slot in a subframe.
Wherein, in this embodiment, each accompanying drawing is merely illustrative, the reference signal of inventive antenna logic port
Position is not limited to this, such as, and the reference signal of antenna logic port #4 and the ginseng of antenna logic port #6
Examine signal location can exchange, the reference signal of antenna logic port #5 and the reference of antenna logic port #7
Signal location can exchange.
Embodiment 6
The reference signal of 8 antenna logic ports is divided into 3 groups, and the reference signal that often group comprises is carried on
On the different carrier of same-sign；Reference signal on each antenna logic port is at the frequency domain of a symbol
On be spaced apart 6；In each group, the reference signal of antenna logic port is mapped on same symbol.
The reference signal of antenna logic port #0 and the reference signal of antenna logic port #1 are first group；
The reference signal of antenna logic port #2 and the reference signal of antenna logic port #3 are second group；
The reference signal of antenna logic port #4, the reference signal of antenna logic port #5, antenna logic end
The mouth reference signal of #6 and the reference signal of antenna logic port #7 are the 3rd group；
The reference signal of antenna logic port #4 and the frequency domain position of the reference signal of antenna logic port #6
Identical, carried by code division multiplexing, the reference signal of antenna logic port #5 and antenna logic port #7's
The frequency domain position of reference signal is identical, is carried by code division multiplexing；
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
Wherein,
3rd group is carried on last symbol of first time slot in a subframe；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 17-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 17-b；
Or,
3rd group is carried in a subframe on the penultimate symbol of first time slot；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 18-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 18-b；
Or,
3rd group is carried in a subframe on the third last symbol of first time slot；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 19-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 19-b；
Or,
3rd group is carried on the 4th symbol of first time slot in a subframe；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 20-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 20-b；
Or,
3rd group is carried on last symbol of each time slot in a subframe；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 21-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 21-b；
Or,
3rd group is carried in a subframe on the penultimate symbol of each time slot；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 22-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 22-b；
Or,
3rd group is carried in a subframe on the third last symbol of each time slot；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 23-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 23-b；
Or,
3rd group is carried on the 4th symbol of each time slot in a subframe；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 24-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 24-b；
Or,
On 3rd group of the 4th symbol being carried on first time slot in a subframe and the falling of second time slot
On several second symbol；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 25-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 25-b.
Or, the 3rd group is carried on last symbol of second time slot in a subframe；
Or, the 3rd group is carried in a subframe on the penultimate symbol of second time slot；
Or, the 3rd group is carried in a subframe on the third last symbol of second time slot；
Or, the 3rd group is carried on the 3rd symbol of second time slot in a subframe.
Embodiment 7
The reference signal of antenna logic port #0 and the reference signal of antenna logic port #1 are first group；
The reference signal of antenna logic port #2 and the reference signal of antenna logic port #3 are second group；
The reference signal of antenna logic port #4 and the reference signal of antenna logic port #5 are the 3rd group；
The reference signal of antenna logic port #6 and the reference signal of antenna logic port #7 are the 4th group；
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；3rd group is carried on a subframe
In each time slot penultimate symbol on；4th group is carried on the inverse of each time slot in a subframe
On first symbol；
Reference signal on each antenna logic port is spaced apart 6 on the frequency domain of a symbol, same
In group, the neighboring reference signal of different antennae logic port is spaced apart 3 on the frequency domain of a symbol, ginseng
Examine 4 reference signals of carrying in the target resource block on the symbol of signal place, adhere to two antenna logic ends separately
Mouthful, corresponding two reference signals of each antenna logic port；Reference signal on each antenna logic port
In the same resource block of adjacent-symbol, frequency domain interval is 3；
When Cyclic Prefix is conventional cyclic prefix when, these reference signals position in Physical Resource Block
Putting as shown in Figure 26-a, when Cyclic Prefix is extended cyclic prefix when, these reference signals are at physics
Position in Resource Block is as shown in Figure 26-b.
In the various embodiments described above 1-7,
Antenna logic port #0, antenna logic port #1, antenna logic port #2, antenna logic port #3,
Antenna logic port #4, antenna logic port #5, antenna logic port #6, the ginseng of antenna logic port #7
Examining signal is the publicly-owned reference signal in community；
Or,
Antenna logic port #0, antenna logic port #1, antenna logic port #2, antenna logic port #3,
Reference signal be the publicly-owned reference signal in community, antenna logic port #4, antenna logic port #5, sky
Line logic port #6, the reference signal of antenna logic port #7 are the reference signal that specific user is proprietary, this
Individual specific user can only refer to a user, it is also possible to refers to multiple user；
Or,
Antenna logic port #0, antenna logic port #1, antenna logic port #2, antenna logic port #3,
Reference signal be the publicly-owned reference signal in community, antenna logic port #4, antenna logic port #5, sky
Line logic port #6, the reference signal first time slot in subframe of antenna logic port #7 are that community is public
Some reference signals, second time slot in subframe is the reference signal that specific user is proprietary, and this is special
Determine user and can only refer to a user, it is also possible to refer to multiple user；
Or,
Antenna logic port #0, antenna logic port #1, antenna logic port #2, antenna logic port #3,
Reference signal be the publicly-owned reference signal in community, antenna logic port #4, antenna logic port #5, sky
Line logic port #6, the reference signal second time slot in subframe of antenna logic port #7 are that community is public
Some reference signals, first time slot in subframe is the reference signal that specific user is proprietary, and this is special
Determine user and can only refer to a user, it is also possible to refer to multiple user；
The configuration of publicly-owned reference signal and special reference signal can configure according to component carrier frequency, it is possible to
To configure according to subframe；Described configuration refers to send reference signal on which Resource Block, can be by
According to only sending reference signal on the above-mentioned position of Resource Block giving targeted customer, other users can not see
To and use this reference signal, it is also possible to do not differentiate between user, on the Resource Block of certain component carrier frequency send
Reference signal, all users in this component carrier frequency can use this reference signal, or, all
Reference signal (being equivalent to configure) is sent according to subframe on the Resource Block of component carrier frequency, this community
All users can use this reference signal.
Described symbol is OFDM symbol；
Reference signal on each antenna logic port is determined by cell ID at the initial position of frequency domain.
The foregoing is only embodiments of the invention, be not limited to the present invention, for this area
Technical staff for, the present invention can have various modifications and variations.All in the spirit and principles in the present invention
Within, any modification, equivalent substitution and improvement etc. made, should be included in the claim of the present invention
Within the scope of.
Claims (19)
1. the sending method of a reference signal, it is characterised in that by 8 antenna logic ports
Reference signal is divided into some groups, and the reference signal that often group comprises is carried on the different carrier of identical symbol
On, described reference signal includes publicly-owned reference signal and special reference signal, described publicly-owned reference signal and
The configuration of special reference signal configures according to component carrier frequency, or configures according to subframe；
The reference signal of described 8 antenna logic ports is divided into 4 groups, antenna logic port #0 and
The reference signal of antenna logic port #1 is first group；The reference signal of antenna logic port #2 and antenna
The reference signal of logic port #3 is second group；The reference signal of antenna logic port #4 and antenna logic
The reference signal of port #5 is the 3rd group；The reference signal of antenna logic port #6 and antenna logic port
The reference signal of #7 is the 4th group；Or,
The reference signal of described 8 antenna logic ports is divided into 3 groups, antenna logic port #0's
The reference signal of reference signal and antenna logic port #1 is first group；The reference of antenna logic port #2
The reference signal of signal and antenna logic port #3 is second group；The reference signal of antenna logic port #4,
The reference signal of antenna logic port #5, the reference signal of antenna logic port #6 and antenna logic port
The reference signal of #7 is the 3rd group.
2. the method for claim 1, it is characterised in that
When the reference signal of described 8 antenna logic ports is divided into 4 groups,
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried in a subframe on the penultimate symbol of first time slot；4th group of carrying
In a subframe on last symbol of first time slot；Or, the 3rd group is carried on a son
In frame on last symbol of first time slot, the 4th group is carried on first time slot in a subframe
Penultimate symbol on.
3. the method for claim 1, it is characterised in that
When the reference signal of described 8 antenna logic ports is divided into 4 groups,
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried in a subframe on the penultimate symbol of second time slot；4th group of carrying
In a subframe on last symbol of second time slot；Or, the 3rd group is carried on a son
In frame on last symbol of second time slot；4th group is carried on second time slot in a subframe
Penultimate symbol on.
4. the method for claim 1, it is characterised in that
When the reference signal of described 8 antenna logic ports is divided into 4 groups,
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried in a subframe on the penultimate symbol of each time slot；4th group is carried on
In one subframe on last symbol of each time slot；Or, the 3rd group is carried in a subframe
On last symbol of each time slot；4th group is carried on the inverse of each time slot in a subframe
On two symbols.
5. the method for claim 1, it is characterised in that
When the reference signal of described 8 antenna logic ports is divided into 4 groups,
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried on first symbol of each time slot in a subframe；In a subframe first
On first symbol of individual time slot, the reference signal of antenna logic port #4 and antenna logic port #0's
Reference signal frequency domain position is identical, is carried by code division multiplexing；The reference signal of antenna logic port #5
Identical with the reference signal frequency domain position of antenna logic port #1, carried by code division multiplexing；At one
In subframe on first symbol of second time slot, reference signal and the antenna of antenna logic port #4 are patrolled
The reference signal frequency domain position collecting port #1 is identical, is carried by code division multiplexing, antenna logic port #5
Reference signal identical with the reference signal frequency domain position of antenna logic port #0, held by code division multiplexing
Carry；
4th group is carried on second symbol of each time slot in a subframe, each in a subframe
On second symbol of time slot, the reference signal of antenna logic port #6 and the ginseng of antenna logic port #2
Examine signal frequency domain position identical, carried by code division multiplexing, the reference signal of antenna logic port #7 and
The reference signal frequency domain position of antenna logic port #3 is identical, is carried by code division multiplexing.
6. the method for claim 1, it is characterised in that
When the reference signal of described 8 antenna logic ports is divided into 4 groups,
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried on second symbol of each time slot in a subframe, each in a subframe
On second symbol of time slot, the reference signal of antenna logic port #4 and the ginseng of antenna logic port #2
Examine signal frequency domain position identical, carried by code division multiplexing, the reference signal of antenna logic port #5 and
The reference signal frequency domain position of antenna logic port #3 is identical, is carried by code division multiplexing；
4th group is carried on first symbol of each time slot in a subframe；In a subframe first
On first symbol of individual time slot, the reference signal of antenna logic port #6 and antenna logic port #0's
Reference signal frequency domain position is identical, is carried by code division multiplexing；The reference signal of antenna logic port #7
Identical with the reference signal frequency domain position of antenna logic port #1, carried by code division multiplexing；At one
In subframe on first symbol of second time slot, reference signal and the antenna of antenna logic port #6 are patrolled
The reference signal frequency domain position collecting port #1 is identical, is carried by code division multiplexing, antenna logic port #7
Reference signal identical with the reference signal frequency domain position of antenna logic port #0, held by code division multiplexing
Carry.
7. the method for claim 1, it is characterised in that
When the reference signal of described 8 antenna logic ports is divided into 4 groups,
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
The 3rd group of third last symbol being carried on first time slot in a subframe and second time slot
Second symbol on；In a subframe on the third last symbol of first time slot, antenna logic
The reference signal of port #4 is identical with the reference signal frequency domain position of antenna logic port #0, passes through code division
Multiplexing carries, the reference signal of antenna logic port #5 and the reference signal frequency domain of antenna logic port #1
Position is identical, is carried by code division multiplexing；In a subframe on second symbol of second time slot,
The reference signal of antenna logic port #4 is identical with the reference signal frequency domain position of antenna logic port #2,
Carried by code division multiplexing, the reference signal of antenna logic port #5 and the reference of antenna logic port #3
Signal frequency domain position is identical, is carried by code division multiplexing；
On 4th group of first symbol being carried on second time slot in a subframe and second time slot
On third last symbol, in a subframe on first symbol of second time slot and second time slot
Third last symbol on, the reference signal of antenna logic port #6 and the ginseng of antenna logic port #0
Examine signal frequency domain position identical, carried by code division multiplexing, the reference signal of antenna logic port #7 and
The reference signal frequency domain position of antenna logic port #1 is identical, is carried by code division multiplexing.
8. the method for claim 1, it is characterised in that
When the reference signal of described 8 antenna logic ports is divided into 4 groups,
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
On 3rd group of first symbol being carried on second time slot in a subframe and second time slot
On third last symbol, in a subframe on first symbol of second time slot and second time slot
Third last symbol on, the reference signal of antenna logic port #4 and the ginseng of antenna logic port #0
Examine signal frequency domain position identical, carried by code division multiplexing, the reference signal of antenna logic port #5 and
The reference signal frequency domain position of antenna logic port #1 is identical, is carried by code division multiplexing；
The 4th group of third last symbol being carried on first time slot in a subframe and second time slot
Second symbol on；In a subframe on the third last symbol of first time slot, antenna logic
The reference signal of port #6 is identical with the reference signal frequency domain position of antenna logic port #0, passes through code division
Multiplexing carries, the reference signal of antenna logic port #7 and the reference signal frequency domain of antenna logic port #1
Position is identical, is carried by code division multiplexing；In a subframe on second symbol of second time slot,
The reference signal of antenna logic port #6 is identical with the reference signal frequency domain position of antenna logic port #2,
Carried by code division multiplexing, the reference signal of antenna logic port #7 and the reference of antenna logic port #3
Signal frequency domain position is identical, is carried by code division multiplexing.
9. the method for claim 1, it is characterised in that
When the reference signal of described 8 antenna logic ports is divided into 4 groups,
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried on first symbol of second time slot in a subframe, wherein, at described symbol
On number, the reference signal of antenna logic port #4 and the reference signal frequency domain position of antenna logic port #0
Identical, carried by code division multiplexing, the reference signal of antenna logic port #5 and antenna logic port #1
Reference signal frequency domain position identical, carried by code division multiplexing；
4th group is carried on second symbol of second time slot in a subframe, wherein, at described symbol
On number, the reference signal of antenna logic port #6 and the reference signal frequency domain position of antenna logic port #3
Identical, carried by code division multiplexing, the reference signal of antenna logic port #7 and antenna logic port #2
Reference signal frequency domain position identical, carried by code division multiplexing.
10. the method for claim 1, it is characterised in that
When the reference signal of described 8 antenna logic ports is divided into 4 groups,
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried on second symbol of second time slot in a subframe, wherein, at described symbol
On number, the reference signal of antenna logic port #4 and the reference signal frequency domain position of antenna logic port #3
Identical, carried by code division multiplexing, the reference signal of antenna logic port #5 and antenna logic port #2
Reference signal frequency domain position identical, carried by code division multiplexing；
4th group is carried on first symbol of second time slot in a subframe, wherein, at described symbol
On number, the reference signal of antenna logic port #6 and the reference signal frequency domain position of antenna logic port #0
Identical, carried by code division multiplexing, the reference signal of antenna logic port #7 and antenna logic port #1
Reference signal frequency domain position identical, carried by code division multiplexing.
11. methods as described in claim 1 to 10 is arbitrary, it is characterised in that
When the reference signal of described 8 antenna logic ports is divided into 4 groups,
Reference signal on each antenna logic port is spaced apart 6 on the frequency domain of a symbol；Same
In group, the neighboring reference signal of different antennae logic port is spaced apart 3 on the frequency domain of a symbol, ginseng
Examine 4 reference signals of carrying in the target resource block on the symbol of signal place, adhere to two antenna logic ends separately
Mouthful, corresponding two reference signals of each antenna logic port；Reference signal on each antenna logic port
In the same resource block of adjacent-symbol, frequency domain interval is 3.
12. the method for claim 1, it is characterised in that
When the reference signal of described 8 antenna logic ports is divided into 3 groups,
On first group of first symbol being carried on each time slot in a subframe and third last symbol；
Second group is carried on second symbol of each time slot in a subframe；
3rd group is carried on last symbol of first time slot in a subframe；
Or, the 3rd group is carried in a subframe on the penultimate symbol of first time slot；
Or, the 3rd group is carried in a subframe on the third last symbol of first time slot；
Or, the 3rd group is carried on the 4th symbol of first time slot in a subframe；
Or, the 3rd group is carried on last symbol of each time slot in a subframe；
Or, the 3rd group is carried in a subframe on the penultimate symbol of each time slot；
Or, the 3rd group is carried in a subframe on the third last symbol of each time slot；
Or, the 3rd group is carried on the 4th symbol of each time slot in a subframe；
Or, on the 3rd group of the 4th symbol being carried on first time slot in a subframe and when second
On the penultimate symbol of gap；
Or, the 3rd group is carried on last symbol of second time slot in a subframe；
Or, the 3rd group is carried in a subframe on the penultimate symbol of second time slot；
Or, the 3rd group is carried in a subframe on the third last symbol of second time slot；
Or, the 3rd group is carried on the 3rd symbol of second time slot in a subframe.
13. methods as claimed in claim 12, it is characterised in that
When the reference signal of described 8 antenna logic ports is divided into 3 groups,
The reference signal of described antenna logic port #4 and the frequency domain of the reference signal of antenna logic port #6
Position is identical, is carried by code division multiplexing, the reference signal of antenna logic port #5 and antenna logic end
The frequency domain position of the reference signal of mouth #7 is identical, is carried by code division multiplexing；
Or, in the 3rd group, frequency domain position is not in same symbol for the reference signal of each antenna logic port
With.
14. such as claim 1,12 to 13 arbitrary described methods, it is characterised in that
When the reference signal of described 8 antenna logic ports is divided into 3 groups,
Reference signal on each antenna logic port is spaced apart 6 on the frequency domain of a symbol.
15. such as claim 2 to 10,12 to 13 arbitrary described methods, it is characterised in that institute
Stating a subframe and comprise two time slots, when system uses conventional cyclic prefix when, a time slot comprises
7 symbols；When system uses extended cyclic prefix when, a time slot comprises 6 symbols.
16. such as claim 1 to 10,12 to 13 arbitrary described methods, it is characterised in that institute
State antenna logic port #0, antenna logic port #1, antenna logic port #2, antenna logic port #3
Reference signal be the publicly-owned reference signal in community, antenna logic port #4, antenna logic port #5, sky
Line logic port #6, the reference signal first time slot in subframe of antenna logic port #7 are community
Publicly-owned reference signal or the proprietary reference signal of one or more specific user, second in subframe
Time slot is the publicly-owned reference signal in community or the proprietary reference signal of one or more specific user.
17. such as claim 1 to 10,12 to 13 arbitrary described methods, it is characterised in that institute
Stating symbol is OFDM symbol.
18. such as claim 1 to 10,12 to 13 arbitrary described methods, it is characterised in that every
Reference signal on individual antenna logic port is determined by cell ID at the initial position of frequency domain.
19. such as claim 1 to 10,12 to 13 arbitrary described methods, it is characterised in that institute
State antenna logic port #0, antenna logic port #1, antenna logic port #2, antenna logic port #3
Corresponding to antenna port #0, antenna port #1, antenna port #2, antenna port #3；
Antenna logic port #4, antenna logic port #5, antenna logic port #6, antenna logic port #7
Corresponding to antenna port #k+3, antenna port #k+4, antenna port #k+5, antenna port #k+6, its
In, k is positive integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810190127.9A CN101459462B (en) | 2008-12-31 | A kind of sending method of reference signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810190127.9A CN101459462B (en) | 2008-12-31 | A kind of sending method of reference signal |
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| CN101459462B true CN101459462B (en) | 2016-12-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008137963A2 (en) * | 2007-05-07 | 2008-11-13 | Qualcomm Incorporated | Method and apparatus for multiplexing cdm pilot and fdm data |
| WO2008157636A2 (en) * | 2007-06-18 | 2008-12-24 | Qualcomm Incorporated | Multiplexing of sounding signals in ack and cqi channels |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008137963A2 (en) * | 2007-05-07 | 2008-11-13 | Qualcomm Incorporated | Method and apparatus for multiplexing cdm pilot and fdm data |
| WO2008157636A2 (en) * | 2007-06-18 | 2008-12-24 | Qualcomm Incorporated | Multiplexing of sounding signals in ack and cqi channels |
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