CN101867949A - Mapping method of channel measurement pilot frequency and physical resource block - Google Patents
Mapping method of channel measurement pilot frequency and physical resource block Download PDFInfo
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- CN101867949A CN101867949A CN200910134981A CN200910134981A CN101867949A CN 101867949 A CN101867949 A CN 101867949A CN 200910134981 A CN200910134981 A CN 200910134981A CN 200910134981 A CN200910134981 A CN 200910134981A CN 101867949 A CN101867949 A CN 101867949A
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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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
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
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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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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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
- H04L5/0058—Allocation criteria
- H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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Abstract
The invention discloses a mapping method of a channel measurement pilot frequency and a physical resource block, which are applied in an advanced long-term evolution system, and comprises the following step that: the base station is provided with one or a plurality of antenna ports adopting a common pilot frequency specified in the long-term evolution system to be as the channel measurement pilot frequency, and is provided with the channel measure pilot frequencies of other antenna parts to avoid the mapping positions of the common pilot frequency and downlink dedicated pilot frequency in the long-term evolution system. The invention can save system overhead, and can not cause large influence on performance of the user of the long-term evolution system.
Description
Technical field
The present invention relates to radio communication, relate in particular to a kind of senior Long Term Evolution (Long-TermEvolution advance, abbreviate LTE-A as) mapping method of channel measurement pilot frequency (abbreviating CSI-RS as) and Physical Resource Block (Resource Block abbreviates RB as) in the system.
Background technology
Two kinds of pilot tone: CSI-RS and the demodulation pilot frequency (abbreviating DMRS as) of LTE-A in LTE56 meeting of 3GPP, have been defined, wherein clear and definite CSI-RS is cell-specific (cell-specific), every antenna port all sends, and distributes more sparse on running time-frequency resource with respect to demodulation pilot frequency.
But how CSI-RS specifically is mapped on the physical resource in the not clear and definite LTE-A of the prior art system.
Summary of the invention
The technical problem to be solved in the present invention overcomes the problems referred to above exactly, the mapping method of a kind of channel measurement pilot frequency and Physical Resource Block is proposed, can save overhead, and little to the performance impact of Long Term Evolution (Long-TermEvolution abbreviates LTE as) system user.
In order to solve the problems of the technologies described above, the invention provides the mapping method of a kind of channel measurement pilot frequency and Physical Resource Block, be applied to comprise in the advanced long-term evolution system:
The base station is provided with one or more antenna ports and adopts the public guide frequency of stipulating in the long evolving systems as channel measurement pilot frequency, and the channel measurement pilot frequency that other antenna port is set is avoided the mapping position of the public guide frequency and the descending special pilot frequency of described long evolving system.
Further, above-mentioned mapping method also can have following characteristics:
When the base station was provided with 1 or 2 antenna port and adopts the public guide frequency stipulated in the long evolving system as channel measurement pilot frequency, the channel measurement pilot frequency that the base station is provided with other antenna port was distributed on the 6th or 9 or 11 or 14 OFDM symbol of Physical Resource Block;
When the base station was provided with 4 antenna ports and adopts the public guide frequency stipulated in the long evolving systems as channel measurement pilot frequency, the channel measurement pilot frequency that the base station is provided with other antenna port was distributed on the 6th or 11 or 14 OFDM symbol of Physical Resource Block.
Further, above-mentioned mapping method also can have following characteristics:
The channel measurement pilot frequency of described other antenna port frequency domain original position on the OFDM symbol in described Physical Resource Block is an i subcarrier, i=0,1,2 or 3.
Further, above-mentioned mapping method also can have following characteristics:
In described other antenna port, the subcarrier number of being separated by between the channel measurement pilot frequency of same antenna port is 12 approximate number or multiple.
Further, above-mentioned mapping method also can have following characteristics:
In described other antenna port, the subcarrier number of being separated by between the channel measurement pilot frequency of same antenna port is 6,12 or 24.
Further, above-mentioned mapping method also can have following characteristics:
In described other antenna port, the channel measurement pilot frequency of an antenna port is positioned at an OFDM symbol in described Physical Resource Block, or is positioned at a plurality of OFDM symbols.
Further, above-mentioned mapping method also can have following characteristics:
At the subframe that each channel measurement pilot frequency configuration sends, the base station is mapped to channel measurement pilot frequency on the Physical Resource Block in the manner described above, sends by described antenna port.
Further, above-mentioned mapping method also can have following characteristics:
Described base station evenly sends described channel measurement pilot frequency according to the fixing cycle.
Further, above-mentioned mapping method also can have following characteristics:
The base station is provided with antenna port 0～3 and adopts the public guide frequency of stipulating in the long evolving system as channel measurement pilot frequency, and the channel measurement pilot frequency of other antenna ports shines upon in such a way:
The channel measurement pilot frequency of antenna port 4 is mapped on the subcarrier 0 of the 6th OFDM symbol of each Physical Resource Block and on the subcarrier 6 of the 14th OFDM symbol; The channel measurement pilot frequency of antenna port 5 is mapped on the subcarrier 3 of the 6th OFDM symbol of each Physical Resource Block and on the subcarrier 9 of the 14th OFDM symbol; The channel measurement pilot frequency of antenna port 6 is mapped on the subcarrier 6 of the 6th OFDM symbol of each Physical Resource Block and on the subcarrier 0 of the 14th OFDM symbol; The channel measurement pilot frequency of antenna port 7 is mapped on the subcarrier 9 of the 6th OFDM symbol of each Physical Resource Block and on the subcarrier 3 of the 14th OFDM symbol.
Further, above-mentioned mapping method also can have following characteristics:
The base station is provided with antenna port 0～3 and adopts the public guide frequency of stipulating in the long evolving system as channel measurement pilot frequency, and the channel measurement pilot frequency of other antenna ports shines upon in such a way:
The channel measurement pilot frequency of antenna port 4 is mapped on the subcarrier 0 of the 14th OFDM symbol of each Physical Resource Block; The channel measurement pilot frequency of antenna port 5 is mapped on the subcarrier 3 of the 14th OFDM symbol of each Physical Resource Block; The channel measurement pilot frequency of antenna port 6 is mapped on the subcarrier 6 of the 14th OFDM symbol of each Physical Resource Block; The channel measurement pilot frequency of antenna port 7 is mapped on the subcarrier 9 of the 14th OFDM symbol of each Physical Resource Block.
Further, above-mentioned mapping method also can have following characteristics:
Described base station is provided with antenna port 0～3 and adopts the public guide frequency of stipulating in the long evolving system as channel measurement pilot frequency, and the channel measurement pilot frequency of other antenna ports shines upon in such a way:
The channel measurement pilot frequency of antenna port 4 is mapped on the subcarrier 0 and subcarrier 6 of the 14th OFDM symbol of each Physical Resource Block; The channel measurement pilot frequency of antenna port 5 is mapped on the subcarrier 1 and 7 of the 14th OFDM symbol of each Physical Resource Block; The channel measurement pilot frequency of antenna port 6 is mapped on the subcarrier 3 and subcarrier 9 of the 14th OFDM symbol of each Physical Resource Block; The channel measurement pilot frequency of antenna port 7 is mapped on the subcarrier 4 and subcarrier 10 of the 14th OFDM symbol of each Physical Resource Block.
Beneficial effect of the present invention is as follows:
1. the base station as portion C SI-RS, then not be used in all or part of public guide frequency public guide frequency transmitting antenna port transmitting channel measurement pilot frequency again, thereby saves pilot-frequency expense greatly;
2. because of undefined CSI-RS in the LTE physical layer standard, LTE user can not discern the CSI-RS that sends on the Physical Resource Block, and LTE user will be the symbol of CSI-RS as mistake in the data that receive; In the present invention, newly-increased CSI-RS distributes very sparse on each RB, and is very little to the original performance degradation of LTE;
3. the CSI-RS of Xin Zeng each antenna port subcarrier number of being separated by is the approximate number or the multiple of the subcarrier number 12 on each RB, and it is uniform on full bandwidth to be convenient to CSI-RS;
4. the CSI-RS of newly-increased antenna port can evenly send by each antenna port at interval, helps reducing the degradation to the LTE system;
5. can obtain the channel quality indication (CQI) information on the full bandwidth;
6. do not destroy original public guide frequency pattern, less to systematic influence.
Description of drawings
Fig. 1 is the public guide frequency and the descending special pilot frequency pattern of normal cyclic prefix frame structure.
Fig. 2 is the mapping pattern of CSI-RS and the Physical Resource Block of embodiment one;
Fig. 3 is the mapping pattern of CSI-RS and the Physical Resource Block of embodiment two;
Fig. 4 is the mapping pattern of CSI-RS and the Physical Resource Block of embodiment three;
Fig. 5 is the mapping pattern of CSI-RS and the Physical Resource Block of embodiment four;
Fig. 6 is the mapping pattern of CSI-RS and the Physical Resource Block of embodiment five;
Fig. 7 is the mapping pattern of CSI-RS and the Physical Resource Block of embodiment six;
Fig. 8 is the mapping pattern of CSI-RS and the Physical Resource Block of embodiment seven;
Fig. 9 (A)～(B) is the mapping pattern of CSI-RS and the Physical Resource Block of embodiment eight.
Embodiment
The present invention is described in detail below in conjunction with drawings and the specific embodiments.
In LTE and the LTE-A system, when physical resource is configured to, the structure of two dimension frequently.In the physical layer standard of LTE, stipulate, the time domain of a Physical Resource Block of normal circulation frame structure (being called for short RB) comprises 14 OFDMs (Orthogonal Frequency Division Multiplexing, abbreviate OFDM as) symbol, frequency domain comprises 12 subcarriers.RB is the base unit of physical source distributing in the ofdm system, as shown in Figure 1.
Because the LTE system supports 4 antennas at most, so the public guide frequency of antenna port 0,1,2,3 has defined its pilot tone pattern in the LTE system, as shown in Figure 1.The present invention based on this, the mapping of CSI-RS and Physical Resource Block when public guide frequency is used for channel quality indication calculation.
In the present invention, based on public guide frequency, because the multipotency of LTE-A system is supported 8 antennas, then the base station is provided with one or more (preferred 4,2 or 1) antenna ports wherein and adopts the public guide frequency of stipulating in the former LTE system as CSI-RS, and the CSI-RS that other antenna port is set avoids the public guide frequency of former LTE system and the mapping position of descending special pilot frequency:
When the base station was provided with 4 antenna ports and adopts the public guide frequency stipulated in the former LTE system as CSI-RS, the CSI-RS that the base station is provided with other antenna port was distributed on the 6th or 11 or 14 the OFDM symbol of RB;
When the base station was provided with 2 antenna ports and adopts the public guide frequency stipulated in the former LTE system as CSI-RS, the CSI-RS that the base station is provided with other antenna port was distributed on the 6th or 9 or 11 or 14 the OFDM symbol of RB;
When the base station was provided with 1 antenna port and adopts the public guide frequency stipulated in the former LTE system as CSI-RS, the CSI-RS that the base station is provided with other antenna port was distributed on the 6th or 9 or 11 or 14 the OFDM symbol of RB.
Preferably, the CSI-RS of described other antenna port frequency domain original position on the OFDM symbol in described RB is an i subcarrier, i=0,1,2,3.
In described other antenna port, the subcarrier number of being separated by between the CSI-RS of same antenna port is 12 approximate number or multiple, 6 or 12 or 24 subcarriers of preferably being separated by.
In described other antenna port, the CSI-RS of an antenna port can be positioned at an OFDM symbol in described RB, also can be positioned at a plurality of OFDM symbols;
At the subframe that each CSI-RS configuration sends, the base station is mapped to CSI-RS on the Physical Resource Block in a manner described, sends by described antenna port;
The subframe that described CSI-RS configuration sends refers to: the subframe of carrying CSI-RS.
The base station can send CSI-RS continuously by above-mentioned mapping mode, also can evenly send CSI-RS according to the fixing cycle at each antenna port.
For example the CSI-RS transmission cycle of the high level of base station (referring to the layer that the MAC layer is above) allocating cell is 5ms, and so every 5ms CSI-RS sends once according to above mapping mode, does not send CSI-RS on four subframes at interval.On the subframe that the CSI-RS configuration sends, the base station is mapped to CSI-RS on the Physical Resource Block in a manner described, sends by described antenna port.The time interval (promptly sending the cycle) that CSI-RS sends can be configured each sub-district by high level according to the LTE-A number of users of this sub-district and user's VELOCITY DISTRIBUTION.
Embodiment one
As shown in Figure 2, the base station is provided with antenna port 0～3 and adopts the public guide frequency of stipulating among the LTE as CSI-RS, and the CSI-RS of other antenna ports shines upon in such a way:
1. the CSI-RS of antenna port 4 is mapped on the subcarrier 3 of the 6th OFDM symbol of each RB;
2. the CSI-RS of antenna port 5 is mapped on the subcarrier 9 of the 6th OFDM symbol of each RB;
3. the CSI-RS of antenna port 6 is mapped on the subcarrier 3 of the 14th OFDM symbol of each RB;
4. the CSI-RS of antenna port 7 is mapped on the subcarrier 9 of the 14th OFDM symbol of each RB;
At the subframe that each CSI-RS configuration sends, the base station is mapped to CSI-RS on the Physical Resource Block in a manner described, sends by described antenna port.
On full bandwidth, the CSI-RS of each antenna port 12 subcarriers of being separated by in the antenna port 4～7.
Embodiment two
As shown in Figure 3, the base station is provided with antenna port 0～3 and adopts the public guide frequency of stipulating among the LTE as CSI-RS, and the CSI-RS of other antenna ports shines upon in such a way:
1. the CSI-RS of antenna port 4 is mapped on the subcarrier 3 of the 6th OFDM symbol of each RB;
2. the CSI-RS of antenna port 5 is mapped on the subcarrier 9 of the 6th OFDM symbol of each RB;
3. the CSI-RS of antenna port 6 is mapped on the subcarrier 0 of the 11st OFDM symbol of each RB;
4. the CSI-RS of antenna port 7 is mapped on the subcarrier 6 of the 11st OFDM symbol of each RB (Physical Resource Block);
At the subframe that each CSI-RS configuration sends, the base station is mapped to CSI-RS on the Physical Resource Block in a manner described, sends by described antenna port.
On full bandwidth, the CSI-RS of each antenna port 12 subcarriers of being separated by in the antenna port 4～7.
Embodiment three
As shown in Figure 4, the base station is provided with antenna port 0～3 and adopts the public guide frequency of stipulating among the LTE as CSI-RS, and the CSI-RS of other antenna ports shines upon in such a way:
1. the CSI-RS of antenna port 4 is mapped on the subcarrier 0 of the 6th OFDM symbol of each RB and on the subcarrier 6 of the 14th OFDM symbol;
2. the CSI-RS of antenna port 5 is mapped on the subcarrier 3 of the 6th OFDM symbol of each RB and on the subcarrier 9 of the 14th OFDM symbol;
3. the CSI-RS of antenna port 6 is mapped on the subcarrier 6 of the 6th OFDM symbol of each RB and on the subcarrier 0 of the 14th OFDM symbol;
4. the CSI-RS of antenna port 7 is mapped on the subcarrier 9 of the 6th OFDM symbol of each RB and on the subcarrier 3 of the 14th OFDM symbol;
At the subframe that each CSI-RS configuration sends, the base station is mapped to CSI-RS on the Physical Resource Block in a manner described, sends by described antenna port.
On full bandwidth, the CSI-RS of each antenna port 6 subcarriers of being separated by in the antenna port 4～7.
Embodiment four
As shown in Figure 5, the base station is provided with antenna port 0～3 and adopts the public guide frequency of stipulating among the LTE as CSI-RS, and the CSI-RS of other antenna ports shines upon in such a way:
1. the CSI-RS of antenna port 4 is mapped on the subcarrier 2 and subcarrier 8 of the 6th OFDM symbol of each RB;
2. the CSI-RS of antenna port 5 is mapped on the subcarrier 5 and subcarrier 11 of the 6th OFDM symbol of each RB;
3. the CSI-RS of antenna port 6 is mapped on the subcarrier 2 and subcarrier 8 of the 14th OFDM symbol of each RB;
4. the CSI-RS of antenna port 7 is mapped on the subcarrier 5 and subcarrier 11 of the 14th OFDM symbol of each RB;
At the subframe that each CSI-RS configuration sends, the base station is mapped to CSI-RS on the Physical Resource Block in a manner described, sends by described antenna port.
On full bandwidth, the CSI-RS of each antenna port 6 subcarriers of being separated by in the antenna port 4～7.
Embodiment five
As shown in Figure 6, the base station is provided with antenna port 0～3 and adopts the public guide frequency of stipulating among the LTE as CSI-RS, and the CSI-RS of other antenna ports shines upon in such a way:
1. the CSI-RS of antenna port 4 is mapped on the subcarrier 0 of the 14th OFDM symbol of each RB;
2. the CSI-RS of antenna port 5 is mapped on the subcarrier 3 of the 14th OFDM symbol of each RB;
3. the CSI-RS of antenna port 6 is mapped on the subcarrier 6 of the 14th OFDM symbol of each RB;
4. the CSI-RS of antenna port 7 is mapped on the subcarrier 9 of the 14th OFDM symbol of each RB;
At the subframe that each CSI-RS configuration sends, the base station is mapped to CSI-RS on the Physical Resource Block in a manner described, sends by described antenna port.
On full bandwidth, the CSI-RS of each antenna port 12 subcarriers of being separated by in the antenna port 4～7.
Embodiment six
As shown in Figure 7, the base station is provided with antenna port 0～3 and adopts the public guide frequency of stipulating among the LTE as CSI-RS, and the CSI-RS of other antenna ports shines upon in such a way:
1. the CSI-RS of antenna port 4 is mapped on the subcarrier 0 and subcarrier 6 of the 14th OFDM symbol of each RB;
2. the CSI-RS of antenna port 5 is mapped on the subcarrier 1 and 7 of the 14th OFDM symbol of each RB;
3. the CSI-RS of antenna port 6 is mapped on the subcarrier 3 and subcarrier 9 of the 14th OFDM symbol of each RB;
4. the CSI-RS of antenna port 7 is mapped on the subcarrier 4 and subcarrier 10 of the 14th OFDM symbol of each RB;
At the subframe that each CSI-RS configuration sends, the base station is mapped to CSI-RS on the Physical Resource Block in a manner described, sends by described antenna port.
On full bandwidth, the CSI-RS of each antenna port 6 subcarriers of being separated by in the antenna port 4～7.
Embodiment seven
As shown in Figure 8, the base station is provided with antenna port 0～1 and adopts the public guide frequency of stipulating among the LTE as CSI-RS, the public guide frequency of transmitting antenna port 2～3 not on the full bandwidth resource.The CSI-RS of other antenna ports shines upon in such a way:
1. the CSI-RS of antenna port 2 is mapped on the subcarrier 0 of the 6th OFDM symbol of each RB;
2. the CSI-RS of antenna port 3 is mapped on the subcarrier 6 of the 6th OFDM symbol of each RB;
3. the CSI-RS of antenna port 4 is mapped on the subcarrier 3 of the 11st OFDM symbol of each RB;
4. the CSI-RS of antenna port 5 is mapped on the subcarrier 9 of the 11st OFDM symbol of each RB;
5. the CSI-RS of antenna port 6 is mapped on the subcarrier 0 of the 14th OFDM symbol of each RB;
6. the CSI-RS of antenna port 7 is mapped on the subcarrier 6 of the 14th OFDM symbol of each RB;
At the subframe that each CSI-RS configuration sends, the base station is mapped to CSI-RS on the Physical Resource Block in a manner described, sends by described antenna port.
On full bandwidth, the CSI-RS of each antenna port 12 subcarriers of being separated by in the antenna port 2～7.
Embodiment eight
As shown in Figure 9, the base station is provided with antenna port 0 and adopts the public guide frequency of stipulating among the LTE as CSI-RS, and the CSI-RS of other antenna ports shines upon in such a way:
1. the CSI-RS of antenna port 1, i.e. R1, per 2 RB send once, are mapped on the subcarrier 1 of the 9th OFDM symbol of first RB;
2. the CSI-RS of antenna port 2, i.e. R2, per 2 RB send once, are mapped on the subcarrier 4 of the 9th OFDM symbol of first RB;
3. the CSI-RS of antenna port 3, i.e. R3, per 2 RB send once, are mapped on the subcarrier 7 of the 9th OFDM symbol of first RB;
4. the CSI-RS of antenna port 4, i.e. R4, per 2 RB send once, are mapped on the subcarrier 10 of the 9th OFDM symbol of first RB;
5. the CSI-RS of antenna port 5, i.e. R5, per 2 RB send once, are mapped on the subcarrier 2 of the 11st OFDM symbol of second RB;
6. the CSI-RS of antenna port 6, i.e. R6, per 2 RB send once, are mapped on the subcarrier 6 of the 11st OFDM symbol of second RB;
7. the CSI-RS of antenna port 7, i.e. R7, per 2 RB send once, are mapped on the subcarrier 10 of the 11st OFDM symbol of second RB;
At the subframe that each CSI-RS configuration sends, the base station is mapped to CSI-RS on the Physical Resource Block in a manner described, sends by described antenna port.
On full bandwidth, the CSI-RS of each antenna port 24 subcarriers of being separated by in the antenna port 1～7.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (11)
1. the mapping method of channel measurement pilot frequency and Physical Resource Block is applied to comprise in the advanced long-term evolution system:
The base station is provided with one or more antenna ports and adopts the public guide frequency of stipulating in the long evolving systems as channel measurement pilot frequency, and the channel measurement pilot frequency that other antenna port is set is avoided the mapping position of the public guide frequency and the descending special pilot frequency of described long evolving system.
2. mapping method as claimed in claim 1 is characterized in that,
When the base station was provided with 1 or 2 antenna port and adopts the public guide frequency stipulated in the long evolving system as channel measurement pilot frequency, the channel measurement pilot frequency that the base station is provided with other antenna port was distributed on the 6th or 9 or 11 or 14 OFDM symbol of Physical Resource Block;
When the base station was provided with 4 antenna ports and adopts the public guide frequency stipulated in the long evolving systems as channel measurement pilot frequency, the channel measurement pilot frequency that the base station is provided with other antenna port was distributed on the 6th or 11 or 14 OFDM symbol of Physical Resource Block.
3. mapping method as claimed in claim 1 or 2 is characterized in that, the channel measurement pilot frequency of described other antenna port frequency domain original position on the OFDM symbol in described Physical Resource Block is an i subcarrier, i=0,1,2 or 3.
4. mapping method as claimed in claim 1 or 2 is characterized in that, in described other antenna port, the subcarrier number of being separated by between the channel measurement pilot frequency of same antenna port is 12 approximate number or multiple.
5. mapping method as claimed in claim 1 or 2 is characterized in that, in described other antenna port, the subcarrier number of being separated by between the channel measurement pilot frequency of same antenna port is 6,12 or 24.
6. mapping method as claimed in claim 2 is characterized in that, in described other antenna port, the channel measurement pilot frequency of an antenna port is positioned at an OFDM symbol in described Physical Resource Block, or is positioned at a plurality of OFDM symbols.
7. mapping method as claimed in claim 1 or 2 is characterized in that, at the subframe that each channel measurement pilot frequency configuration sends, the base station is mapped to channel measurement pilot frequency on the Physical Resource Block in the manner described above, sends by described antenna port.
8. mapping method as claimed in claim 7 is characterized in that,
Described base station evenly sends described channel measurement pilot frequency according to the fixing cycle.
9. mapping method as claimed in claim 7 is characterized in that,
The base station is provided with antenna port 0～3 and adopts the public guide frequency of stipulating in the long evolving system as channel measurement pilot frequency, and the channel measurement pilot frequency of other antenna ports shines upon in such a way:
The channel measurement pilot frequency of antenna port 4 is mapped on the subcarrier 0 of the 6th OFDM symbol of each Physical Resource Block and on the subcarrier 6 of the 14th OFDM symbol; The channel measurement pilot frequency of antenna port 5 is mapped on the subcarrier 3 of the 6th OFDM symbol of each Physical Resource Block and on the subcarrier 9 of the 14th OFDM symbol; The channel measurement pilot frequency of antenna port 6 is mapped on the subcarrier 6 of the 6th OFDM symbol of each Physical Resource Block and on the subcarrier 0 of the 14th OFDM symbol; The channel measurement pilot frequency of antenna port 7 is mapped on the subcarrier 9 of the 6th OFDM symbol of each Physical Resource Block and on the subcarrier 3 of the 14th OFDM symbol.
10. mapping method as claimed in claim 7 is characterized in that,
The base station is provided with antenna port 0～3 and adopts the public guide frequency of stipulating in the long evolving system as channel measurement pilot frequency, and the channel measurement pilot frequency of other antenna ports shines upon in such a way:
The channel measurement pilot frequency of antenna port 4 is mapped on the subcarrier 0 of the 14th OFDM symbol of each Physical Resource Block; The channel measurement pilot frequency of antenna port 5 is mapped on the subcarrier 3 of the 14th OFDM symbol of each Physical Resource Block; The channel measurement pilot frequency of antenna port 6 is mapped on the subcarrier 6 of the 14th OFDM symbol of each Physical Resource Block; The channel measurement pilot frequency of antenna port 7 is mapped on the subcarrier 9 of the 14th OFDM symbol of each Physical Resource Block.
11. mapping method as claimed in claim 7 is characterized in that,
Described base station is provided with antenna port 0～3 and adopts the public guide frequency of stipulating in the long evolving system as channel measurement pilot frequency, and the channel measurement pilot frequency of other antenna ports shines upon in such a way:
The channel measurement pilot frequency of antenna port 4 is mapped on the subcarrier 0 and subcarrier 6 of the 14th OFDM symbol of each Physical Resource Block; The channel measurement pilot frequency of antenna port 5 is mapped on the subcarrier 1 and 7 of the 14th OFDM symbol of each Physical Resource Block; The channel measurement pilot frequency of antenna port 6 is mapped on the subcarrier 3 and subcarrier 9 of the 14th OFDM symbol of each Physical Resource Block; The channel measurement pilot frequency of antenna port 7 is mapped on the subcarrier 4 and subcarrier 10 of the 14th OFDM symbol of each Physical Resource Block.
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| CN200910134981.8A CN101867949B (en) | 2009-04-20 | 2009-04-20 | Mapping method of channel measurement pilot frequency and physical resource block |
| PCT/CN2010/071930 WO2010121541A1 (en) | 2009-04-20 | 2010-04-20 | Mapping method and base station thereof |
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| CN200910134981.8A CN101867949B (en) | 2009-04-20 | 2009-04-20 | Mapping method of channel measurement pilot frequency and physical resource block |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638432A (en) * | 2011-02-12 | 2012-08-15 | 中兴通讯股份有限公司 | Resource mapping method and device for space frequency block code (SFBC) |
| CN103138869A (en) * | 2011-11-22 | 2013-06-05 | ***通信集团公司 | Method for sending channel state information reference signal, base station and relays |
| CN103944847A (en) * | 2013-01-18 | 2014-07-23 | 中兴通讯股份有限公司 | Pilot symbol bearing and processing method, and device |
| CN105050195A (en) * | 2015-06-02 | 2015-11-11 | 北京北方烽火科技有限公司 | LTE-A network user scheduling method and device |
| CN106685620A (en) * | 2015-11-06 | 2017-05-17 | 中兴通讯股份有限公司 | Channel state measurement pilot configuration method, channel state measurement pilot configuration device, parsing method and parsing device |
| CN111404657A (en) * | 2020-03-19 | 2020-07-10 | 东北电力大学 | Pilot frequency map design method based on channel quality in OFDM system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212416B (en) * | 2007-12-25 | 2011-11-30 | 中兴通讯股份有限公司 | Physical channel mapping method |
| CN101350801B (en) * | 2008-03-20 | 2012-10-10 | 中兴通讯股份有限公司 | Method for mapping down special pilot frequency and physical resource block of long loop prefix frame structure |
| CN101340228B (en) * | 2008-08-07 | 2014-05-28 | 中兴通讯股份有限公司南京分公司 | Transmission method of reference signal |
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2009
- 2009-04-20 CN CN200910134981.8A patent/CN101867949B/en not_active Expired - Fee Related
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2010
- 2010-04-20 WO PCT/CN2010/071930 patent/WO2010121541A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102638432B (en) * | 2011-02-12 | 2016-09-28 | 中兴通讯股份有限公司 | The method for mapping resource of null tone block coding and device |
| CN102638432A (en) * | 2011-02-12 | 2012-08-15 | 中兴通讯股份有限公司 | Resource mapping method and device for space frequency block code (SFBC) |
| CN103138869A (en) * | 2011-11-22 | 2013-06-05 | ***通信集团公司 | Method for sending channel state information reference signal, base station and relays |
| CN103138869B (en) * | 2011-11-22 | 2015-08-19 | ***通信集团公司 | The sending method of channel state information reference signals, base station and relaying |
| CN103944847B (en) * | 2013-01-18 | 2019-06-18 | 中兴通讯股份有限公司 | Frequency pilot sign carrying and processing method, device |
| CN103944847A (en) * | 2013-01-18 | 2014-07-23 | 中兴通讯股份有限公司 | Pilot symbol bearing and processing method, and device |
| CN105050195A (en) * | 2015-06-02 | 2015-11-11 | 北京北方烽火科技有限公司 | LTE-A network user scheduling method and device |
| CN105050195B (en) * | 2015-06-02 | 2018-08-10 | 北京北方烽火科技有限公司 | A kind of dispatching method and device of LTE-A network user |
| CN106685620A (en) * | 2015-11-06 | 2017-05-17 | 中兴通讯股份有限公司 | Channel state measurement pilot configuration method, channel state measurement pilot configuration device, parsing method and parsing device |
| CN106685620B (en) * | 2015-11-06 | 2021-02-12 | 中兴通讯股份有限公司 | Configuration method and device, analysis method and device of channel state measurement pilot frequency |
| US11483117B2 (en) | 2015-11-06 | 2022-10-25 | Zte Corporation | Method and device for configuring channel state information reference signal, and method and device for parsing configuring channel state information reference signal |
| CN111404657A (en) * | 2020-03-19 | 2020-07-10 | 东北电力大学 | Pilot frequency map design method based on channel quality in OFDM system |
| CN111404657B (en) * | 2020-03-19 | 2022-08-09 | 东北电力大学 | Pilot frequency map design method based on channel quality in OFDM system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010121541A1 (en) | 2010-10-28 |
| CN101867949B (en) | 2015-05-20 |
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