CN107277822A - A kind of method for transmitting signals and the network equipment - Google Patents
A kind of method for transmitting signals and the network equipment Download PDFInfo
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- CN107277822A CN107277822A CN201610213086.5A CN201610213086A CN107277822A CN 107277822 A CN107277822 A CN 107277822A CN 201610213086 A CN201610213086 A CN 201610213086A CN 107277822 A CN107277822 A CN 107277822A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of method for transmitting signals and the network equipment, wherein method includes:Choose the K Physical Resource Block (PRB) included in sub-band;Wherein, the K is the integer more than or equal to 1, and the K Physical Resource Block is the continuous PRB on frequency domain;The CSI RS signals of M 32 ports are mapped into the K PRB and the CSI RS signals are transmitted;Wherein, M is the integer less than or equal to K and more than or equal to 1.
Description
Technical field
The present invention relates to the signal processing technology in the communications field, more particularly to a kind of method for transmitting signals and net
Network equipment.
Background technology
At present, following two CSI-RS transmission modes are proposed in the protocol:Firstth, user equipment (UE)
CSI measurement reports are fed back based on the measurement to uncoded CSI-RS.Secondth, user equipment is based on to right
Uncoded CSI-RS measurement feedback RI measurement reports.It is uncoded no matter in which kind of scheme
The CSI-RS transmission cycles are longer, therefore its expense is not problem, but are due to that its needs is accurately estimated and covered
The user equipment positioned at overlay area edge is covered, therefore it is required that its covering performance will get well.
The content of the invention
In view of this, can be at least it is an object of the invention to provide a kind of method for transmitting signals and the network equipment
Solve the above-mentioned problems in the prior art.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way:
The embodiment of the present invention provides a kind of method for transmitting signals, and methods described includes:
Choose the K Physical Resource Block PRB included in sub-band;Wherein, the K be more than or equal to
1 integer, the K Physical Resource Block is the continuous PRB on frequency domain;
The CSI-RS of M 32 ports is mapped into the K PRB and the CSI-RS is transmitted
Signal;Wherein, M is the integer less than or equal to K and more than or equal to 1.
The embodiment of the present invention provides a kind of network equipment, including:
Resource chooses unit, the K Physical Resource Block PRB included for choosing in sub-band;Wherein,
K is the integer more than or equal to 1, and the K Physical Resource Block is the continuous PRB on frequency domain;
Signal processing unit, for the CSI-RS of M 32 ports to be mapped into the K PRB
And transmit the CSI-RS;Wherein, M is the integer less than or equal to K and more than or equal to 1.
The embodiments of the invention provide method for transmitting signals and the network equipment, it can be selected from each sub-band
Continuous Physical Resource Block is taken, the physics that the CSI-RS of M 32 ports is mapped into selection is provided
In source block and transmit.So, it becomes possible to transmit 32 ports from the continuous Physical Resource Block in sub-band
CSI-RS so that its density is higher, so as to ensure that covering for the CSI-RS of 32 ports
Lid performance.
Brief description of the drawings
Fig. 1 is method for transmitting signals schematic flow sheet of the embodiment of the present invention;
Fig. 2 is the Symbol Style schematic diagram one that the embodiment of the present invention is chosen;
Fig. 3 is the Symbol Style schematic diagram two that the embodiment of the present invention is chosen;
Fig. 4 is the Symbol Style schematic diagram three that the embodiment of the present invention is chosen;
Fig. 5 is the Symbol Style schematic diagram four that the embodiment of the present invention is chosen;
Fig. 6 is that the network equipment of the embodiment of the present invention constitutes structural representation.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further described in more detail.
Embodiment one,
The embodiments of the invention provide a kind of method for transmitting signals, as shown in figure 1, including:
Step 101:Choose the K Physical Resource Block PRB included in sub-band;Wherein, the K
For the integer more than or equal to 1, the K Physical Resource Block is the continuous PRB on frequency domain;
Step 102:The CSI-RS of M 32 ports is mapped into the K PRB and transmitted
The CSI-RS;Wherein, M is the integer less than or equal to K and more than or equal to 1.
The specific mode of operation of the present embodiment is as follows:
The K Physical Resource Block PRB included in the selection sub-band, in addition to:
Selected in the K Physical Resource Block (PRB, Physical Resource Block) included from sub-band
Take each PRB the second time slot;Wherein, K is the integer more than or equal to 1, the K physics
Resource block is the continuous PRB on frequency domain;:Chosen from the second time slot of each PRB
To two aiming symbols of default time-domain position;
The CSI-RS by M 32 ports maps to the K PRB and transmitted described
CSI-RS, including:The CSI-RS of M 32 ports is mapped into the K PRB
Described two aiming symbols in and transmit the CSI-RS;Wherein, M be less than or equal to K,
And the integer more than or equal to 1.
The present embodiment is according to TS36.213 forms (Table) 7.2.1-5 sub-bands sizes (subband
Size definition) is subsequently illustrated.Wherein, form (Table) 7.2.1-5 may refer to table
1:
Table 1
Preferably, described in the present embodiment preset time-domain position can according to the default position of actual conditions
Put, such as, can choose and be located in time domain at the 2nd, the 3rd character position, be used as default time domain position
Put.
In addition, the present embodiment specifically provides the mode for the quantity for determining M, including:
The number for the PRB that quantity and each sub-band based on the corresponding PRB of system bandwidth are included
K is measured, the quantity M of the CSI-RS for 32 ports that can be transmitted in the K PRB is determined.
Further, the present embodiment is determined the detailed description of M operation with following three example:
Example one,
The PRB that the quantity based on the corresponding PRB of system bandwidth and each sub-band are included
Quantity K, determine the quantity of the CSI-RS for 32 ports that can be transmitted in the K PRB
M, including:
When the corresponding PRB of system bandwidth quantity is in the range of first threshold and each height
When the quantity for the PRB that frequency band is included is two, 32 ends that can be transmitted in the K PRB are determined
The quantity M of the CSI-RS of mouth is one, wherein, the first threshold may range from being more than or equal to
Eight and less than or equal to 26.
Number based on the corresponding PRB quantity of system bandwidth and the corresponding PRB of each sub-band bandwidth
Amount, it may be determined that under the transmission mode scene that the above-mentioned table 1 in the corresponding agreement of this example is limited;Enter one
Step ground, the PRB included based on each sub-band quantity just can determine M.
It is to be appreciated that each PRB can include 7*12 resource element (RE, Resource
Element), that is, corresponded to subcarrier on symbol and 12 frequency domains in 7 time domains, often
One RE is 1 time-domain symbol of correspondence and 1 subcarrier in frequency domain;If necessary to 32 ports of carrying
CSI-RS, it is necessary at least 32 RE.
Continuous two symbols in time domain are chosen due to being arranged in the present embodiment in each PRB, that
That is, the RE of 16 subcarriers is at least chosen on frequency domain can carry 32 port
CSI-RS.
Such as, illustrated with reference to Fig. 2 and table 1, system bandwidth (System bandwidth):8-26,
Some sub-band (subband) includes 2 PRB:PRB x, PRB x+1, in 2 PRB
The position pattern for the 32port CSI-RS for carrying and transmitting can be to choose the portion in each PRB
Divide RE.In addition, above-mentioned pattern is only a kind of example, it can essentially choose complete in some PRB
As long as portion RE then choose in another PRB with the part RE energy in the continuous RE of previous PRB
Enough is 16 continuous subcarriers on frequency domain.
Example two,
The PRB that the quantity based on the corresponding PRB of system bandwidth and each sub-band are included
Quantity K, determine the quantity of the CSI-RS for 32 ports that can be transmitted in the K PRB
M, including:
When the corresponding PRB of system bandwidth quantity is in the range of Second Threshold and each height
When the quantity for the PRB that frequency band is included is three, 32 ends that can be transmitted in the K PRB are determined
The quantity M of the CSI-RS of mouth is two, wherein, the Second Threshold may range from being more than or equal to
27 and less than or equal to 63.
Number based on the corresponding PRB quantity of system bandwidth and the corresponding PRB of each sub-band bandwidth
Amount, it may be determined that under the transmission mode scene that the above-mentioned table 1 in the corresponding agreement of this example is limited;Enter one
Step ground, the PRB included based on each sub-band quantity just can determine M.
It is to be appreciated that each PRB can include 7*12 resource element (RE, Resource
Element), that is, corresponded to subcarrier on symbol and 12 frequency domains in 7 time domains, often
One RE is 1 time-domain symbol of correspondence and 1 subcarrier in frequency domain;If necessary to carrying one 32
The CSI-RS of port, it is necessary at least 32 RE.Due to being arranged on each in the present embodiment
Continuous two symbols in time domain are chosen in PRB, then that is, 16 are at least chosen on frequency domain
The RE of subcarrier can carry the CSI-RS of 32 ports.
Such as, illustrated with reference to Fig. 3 and table 1, system bandwidth (System bandwidth):27-63,
Some sub-band (subband) includes 3 PRB:4 PRB:PRB x, PRB x+1, PRB x+2,
The position pattern for the 2 32port CSI-RS for carrying and transmitting in 3 PRB can be as shown in Figure 3.
Example three,
The PRB that the quantity based on the corresponding PRB of system bandwidth and each sub-band are included
Quantity K, determine the quantity of the CSI-RS for 32 ports that can be transmitted in the K PRB
M, including:
When the corresponding PRB of system bandwidth quantity is in the 3rd threshold range and each height
When the quantity for the PRB that frequency band is included is four, 32 ends that can be transmitted in the K PRB are determined
Mouthful CSI-RS quantity M be three, wherein, the 3rd threshold range can be more than or equal to
64 and less than or equal to 110.
Number based on the corresponding PRB quantity of system bandwidth and the corresponding PRB of each sub-band bandwidth
Amount, it may be determined that under the transmission mode scene that the above-mentioned table 1 in the corresponding agreement of this example is limited;Enter one
Step ground, the PRB included based on each sub-band quantity just can determine M.
It is to be appreciated that each PRB can include 7*12 resource element (RE, Resource
Element), that is, corresponded to subcarrier on symbol and 12 frequency domains in 7 time domains, often
One RE is 1 time-domain symbol of correspondence and 1 subcarrier in frequency domain;If necessary to carrying one 32
The CSI-RS of port, it is necessary at least 32 RE.Due to being arranged on each in the present embodiment
Continuous two symbols in time domain are chosen in PRB, then that is, 16 are at least chosen on frequency domain
The RE of subcarrier can carry the CSI-RS of 32 ports.
Such as, illustrated with reference to Fig. 4 and table 1, system bandwidth (System bandwidth):27-63,
Some sub-band (subband) includes 4 PRB:PRB x, PRB x+1, PRB x+2, PRB x+3,
The position pattern for the 3 32port CSI-RS for carrying and transmitting in 4 PRB can be as shown in Figure 4.
After the resource location for determining mapping CSI-RS to above three example separately below, Neng Gouda
To density illustrate:
System bandwith==8-26RBs in example one, Subband size k==2RBs:One
Comprising a complete 32port CSI-RS in Subband 2 PRB, density is 0.5
RE/port/PRB。
System bandwith==27-63RBs in example two, Subband size k==3RBs:One
Comprising 2 complete 32port CSI-RS in Subband 3 PRB, density is 0.67
RE/port/PRB。
System bandwith==64-110RBs in example three, Subband size k==4RBs:One
Comprising 3 complete 32port CSI-RS in Subband 4 PRB, density is 0.75
RE/port/PRB。
It can be seen that, by using such scheme, continuous physical resource can be chosen from each sub-band
Block, the CSI-RS of M 32 ports is mapped in the Physical Resource Block of selection and transmitted.Such as
This, it becomes possible to the CSI-RS of 32 ports is transmitted from the continuous Physical Resource Block in sub-band, is made
Its density is obtained higher, so as to ensure that the covering performance of the CSI-RS of 32 ports.
Specifically, the second time slot can be chosen from the corresponding Physical Resource Block of each sub-band, and
Two aiming symbols, the CSI-RS mapping of most at last M 32 ports are chosen from the second time slot
Into the aiming symbol of selection and transmit.So, it becomes possible to from the second time slot of each Physical Resource Block
In selected in nearly 40 resource elements, and M CSI-RS is mapped to what is selected
After resource element so that its density is higher, so as to ensure that the spreadability of the CSI-RS of 32 ports
Energy.
Embodiment two,
The embodiments of the invention provide a kind of method for transmitting signals, as shown in figure 1, including:
Step 101:Choose the K Physical Resource Block PRB included in sub-band;Wherein, the K
For the integer more than or equal to 1, the K Physical Resource Block is the continuous PRB on frequency domain;
Step 102:The CSI-RS of M 32 ports is mapped into the K PRB and transmitted
The CSI-RS;Wherein, M is the integer less than or equal to K and more than or equal to 1.
The specific mode of operation of the present embodiment is as follows:
The K Physical Resource Block PRB included in the selection sub-band, in addition to:
Selected in the K Physical Resource Block (PRB, Physical Resource Block) included from sub-band
Take each PRB the second time slot;Wherein, K is the integer more than or equal to 1, the K physics
Resource block is the continuous PRB on frequency domain;:Chosen from the second time slot of each PRB
To two aiming symbols of default time-domain position;
The CSI-RS by M 32 ports maps to the K PRB and transmitted described
CSI-RS, including:The CSI-RS of M 32 ports is mapped into the K PRB
Described two aiming symbols in and transmit the CSI-RS;Wherein, M be less than or equal to K,
And the integer more than or equal to 1.
The present embodiment is according to TS36.213 forms (Table) 7.2.1-3 sub-bands sizes (subband
Size definition) is subsequently illustrated.Wherein, form (Table) 7.2.1-3 may refer to table 2:
Table 2
Preferably, described in the present embodiment preset time-domain position can according to the default position of actual conditions
Put, such as, can choose and be located in time domain at the 2nd, the 3rd character position referring to Fig. 5, as pre-
If time-domain position.
In addition, the present embodiment specifically provides the mode for the quantity for determining M, including:
The number for the PRB that quantity and each sub-band based on the corresponding PRB of system bandwidth are included
K is measured, the quantity M of the CSI-RS for 32 ports that can be transmitted in the K PRB is determined.
Further, the present embodiment is combined above-mentioned table 2, M operation is determined with following three example
Detailed description:
Example one,
The PRB that the quantity based on the corresponding PRB of system bandwidth and each sub-band are included
Quantity K, determine the quantity of the CSI-RS for 32 ports that can be transmitted in the K PRB
M, including:
When the corresponding PRB of system bandwidth quantity is in the range of first threshold and each height
When the quantity for the PRB that frequency band is included is four, 32 ends that can be transmitted in the K PRB are determined
The quantity M of the CSI-RS of mouth is three, wherein, the first threshold may range from being more than or equal to
Eight and less than or equal to 26.
Number based on the corresponding PRB quantity of system bandwidth and the corresponding PRB of each sub-band bandwidth
Amount, it may be determined that under the transmission mode scene that the above-mentioned table 2 in the corresponding agreement of this example is limited;Enter one
Step ground, the PRB included based on each sub-band quantity just can determine M.
It is to be appreciated that each PRB can include 7*12 resource element (RE, Resource
Element), that is, corresponded to subcarrier on symbol and 12 frequency domains in 7 time domains, often
One RE is 1 time-domain symbol of correspondence and 1 subcarrier in frequency domain;If necessary to 32 ports of carrying
CSI-RS, it is necessary at least 32 RE.
Continuous two symbols in time domain are chosen due to being arranged in the present embodiment in each PRB, that
That is, the RE of 16 subcarriers is at least chosen on frequency domain can carry 32 port
CSI-RS.
Such as, system bandwidth (System bandwidth):8-26, some sub-band (subband)
Including 4RBs:Comprising 3 complete 32port CSI-RS in one Subband 4 PRB,
Density is 0.75RE/port/PRB.
Example two,
The PRB that the quantity based on the corresponding PRB of system bandwidth and each sub-band are included
Quantity K, determine the quantity of the CSI-RS for 32 ports that can be transmitted in the K PRB
M, including:
When the corresponding PRB of system bandwidth quantity is in the range of Second Threshold and each height
When the quantity for the PRB that frequency band is included is three, 32 ends that can be transmitted in the K PRB are determined
The quantity M of the CSI-RS of mouth is two, wherein, the Second Threshold may range from being more than or equal to
27 and less than or equal to 63.
Number based on the corresponding PRB quantity of system bandwidth and the corresponding PRB of each sub-band bandwidth
Amount, it may be determined that under the transmission mode scene that the above-mentioned table 1 in the corresponding agreement of this example is limited;Enter one
Step ground, the PRB included based on each sub-band quantity just can determine M.
It is to be appreciated that each PRB can include 7*12 resource element (RE, Resource
Element), that is, corresponded to subcarrier on symbol and 12 frequency domains in 7 time domains, often
One RE is 1 time-domain symbol of correspondence and 1 subcarrier in frequency domain;If necessary to carrying one 32
The CSI-RS of port, it is necessary at least 32 RE.Due to being arranged on each in the present embodiment
Continuous two symbols in time domain are chosen in PRB, then that is, 16 are at least chosen on frequency domain
The RE of subcarrier can carry the CSI-RS of 32 ports.
Such as, system bandwidth (System bandwidth):27-63, some sub-band (subband)
Including, comprising 4 complete 32port CSI-RS, density is 0.67RE/port/PRB in 6 PRB.
Example three,
The PRB that the quantity based on the corresponding PRB of system bandwidth and each sub-band are included
Quantity K, determine the quantity of the CSI-RS for 32 ports that can be transmitted in the K PRB
M, including:
When the corresponding PRB of system bandwidth quantity is in the 3rd threshold range and each height
When the quantity for the PRB that frequency band is included is four, 32 ends that can be transmitted in the K PRB are determined
Mouthful CSI-RS quantity M be three, wherein, the 3rd threshold range can be more than or equal to
64 and less than or equal to 110.
Number based on the corresponding PRB quantity of system bandwidth and the corresponding PRB of each sub-band bandwidth
Amount, it may be determined that under the transmission mode scene that the above-mentioned table 1 in the corresponding agreement of this example is limited;Enter one
Step ground, the PRB included based on each sub-band quantity just can determine M.
It is to be appreciated that each PRB can include 7*12 resource element (RE, Resource
Element), that is, corresponded to subcarrier on symbol and 12 frequency domains in 7 time domains, often
One RE is 1 time-domain symbol of correspondence and 1 subcarrier in frequency domain;If necessary to carrying one 32
The CSI-RS of port, it is necessary at least 32 RE.Due to being arranged on each in the present embodiment
Continuous two symbols in time domain are chosen in PRB, then that is, 16 are at least chosen on frequency domain
The RE of subcarrier can carry the CSI-RS of 32 ports.
Such as, system bandwidth (System bandwidth):27-63, some sub-band (subband)
Comprising 6 complete 32port CSI-RS in 8 PRB including a Subband, density is 0.75
RE/port/PRB。
It can be seen that, by using such scheme, continuous physical resource can be chosen from each sub-band
Block, the CSI-RS of M 32 ports is mapped in the Physical Resource Block of selection and transmitted.Such as
This, it becomes possible to the CSI-RS of 32 ports is transmitted from the continuous Physical Resource Block in sub-band, is made
Its density is obtained higher, so as to ensure that the covering performance of the CSI-RS of 32 ports.
Embodiment three,
The embodiments of the invention provide a kind of network equipment, as shown in fig. 6, including:
Resource chooses unit 61, the K Physical Resource Block PRB included for choosing in sub-band;Its
In, K is the integer more than or equal to 1, and the K Physical Resource Block is the continuous PRB on frequency domain;
Signal processing unit 62, for the CSI-RS of M 32 ports to be mapped into the K
PRB simultaneously transmits the CSI-RS;Wherein, M is whole less than or equal to K and more than or equal to 1
Number.
Resource chooses unit, for choosing each from the K Physical Resource Block PRB that sub-band is included
Individual PRB the second time slot;Chosen from the second time slot of each PRB and obtain default time domain position
Two aiming symbols put;
Accordingly, the signal processing unit, for the CSI-RS of M 32 ports to be mapped
Into described two aiming symbols of the K PRB and transmit the CSI-RS;Wherein, M
For the integer less than or equal to K and more than or equal to 1.
The present embodiment is according to TS36.213 forms (Table) 7.2.1-5 sub-bands sizes (subband
Size definition) is subsequently illustrated.Wherein, form (Table) 7.2.1-5 may refer to table
1:
Table 1
Preferably, described in the present embodiment preset time-domain position can according to the default position of actual conditions
Put, such as, can choose and be located in time domain at the 2nd, the 3rd character position, be used as default time domain position
Put.
In addition, the present embodiment specifically provides the mode for the quantity for determining M, it is as follows:
Signal processing unit, for quantity and each height based on the corresponding PRB of system bandwidth
The quantity K for the PRB that frequency band is included, 32 ports for determining can to transmit in the K PRB
The quantity M of CSI-RS.
Further, the present embodiment is determined the detailed description of M operation with following three example:
Example one,
Signal processing unit, first threshold scope is in for the quantity as the corresponding PRB of system bandwidth
When the quantity for the PRB that each interior and described sub-band is included is two, the K PRB is determined
In the quantity M of the CSI-RSs of 32 ports that can transmit be one, wherein, the first threshold
It may range from being more than or equal to eight and less than or equal to 26.
Number based on the corresponding PRB quantity of system bandwidth and the corresponding PRB of each sub-band bandwidth
Amount, it may be determined that under the transmission mode scene that the above-mentioned table 1 in the corresponding agreement of this example is limited;Enter one
Step ground, the PRB included based on each sub-band quantity just can determine M.
It is to be appreciated that each PRB can include 7*12 resource element (RE, Resource
Element), that is, corresponded to subcarrier on symbol and 12 frequency domains in 7 time domains, often
One RE is 1 time-domain symbol of correspondence and 1 subcarrier in frequency domain;If necessary to 32 ports of carrying
CSI-RS, it is necessary at least 32 RE.
Continuous two symbols in time domain are chosen due to being arranged in the present embodiment in each PRB, that
That is, the RE of 16 subcarriers is at least chosen on frequency domain can carry 32 port
CSI-RS.
Such as, illustrated with reference to Fig. 2 and table 1, system bandwidth (System bandwidth):8-26,
Some sub-band (subband) includes 2 PRB:PRB x, PRB x+1, in 2 PRB
The position pattern for the 32port CSI-RS for carrying and transmitting can be to choose the portion in each PRB
Divide RE.In addition, above-mentioned pattern is only a kind of example, it can essentially choose complete in some PRB
As long as portion RE then choose in another PRB with the part RE energy in the continuous RE of previous PRB
Enough is 16 continuous subcarriers on frequency domain.
Example two,
Signal processing unit, Second Threshold scope is in for the quantity as the corresponding PRB of system bandwidth
When the quantity for the PRB that each interior and described sub-band is included is three, the K PRB is determined
In the quantity M of the CSI-RSs of 32 ports that can transmit be two, wherein, the Second Threshold
It may range from being more than or equal to 27 and less than or equal to 63.
Number based on the corresponding PRB quantity of system bandwidth and the corresponding PRB of each sub-band bandwidth
Amount, it may be determined that under the transmission mode scene that the above-mentioned table 1 in the corresponding agreement of this example is limited;Enter one
Step ground, the PRB included based on each sub-band quantity just can determine M.
It is to be appreciated that each PRB can include 7*12 resource element (RE, Resource
Element), that is, corresponded to subcarrier on symbol and 12 frequency domains in 7 time domains, often
One RE is 1 time-domain symbol of correspondence and 1 subcarrier in frequency domain;If necessary to carrying one 32
The CSI-RS of port, it is necessary at least 32 RE.Due to being arranged on each in the present embodiment
Continuous two symbols in time domain are chosen in PRB, then that is, 16 are at least chosen on frequency domain
The RE of subcarrier can carry the CSI-RS of 32 ports.
Such as, illustrated with reference to Fig. 3 and table 1, system bandwidth (System bandwidth):27-63,
Some sub-band (subband) includes 3 PRB:4 PRB:PRB x, PRB x+1, PRB x+2,
The position pattern for the 2 32port CSI-RS for carrying and transmitting in 3 PRB can be as shown in Figure 3.
Example three,
Signal processing unit, the 3rd threshold range is in for the quantity as the corresponding PRB of system bandwidth
When the quantity for the PRB that each interior and described sub-band is included is four, the K PRB is determined
In the quantity M of the CSI-RSs of 32 ports that can transmit be three, wherein, the 3rd threshold value
It may range from being more than or equal to 64 and less than or equal to 110.
Number based on the corresponding PRB quantity of system bandwidth and the corresponding PRB of each sub-band bandwidth
Amount, it may be determined that under the transmission mode scene that the above-mentioned table 1 in the corresponding agreement of this example is limited;Enter one
Step ground, the PRB included based on each sub-band quantity just can determine M.
It is to be appreciated that each PRB can include 7*12 resource element (RE, Resource
Element), that is, corresponded to subcarrier on symbol and 12 frequency domains in 7 time domains, often
One RE is 1 time-domain symbol of correspondence and 1 subcarrier in frequency domain;If necessary to carrying one 32
The CSI-RS of port, it is necessary at least 32 RE.Due to being arranged on each in the present embodiment
Continuous two symbols in time domain are chosen in PRB, then that is, 16 are at least chosen on frequency domain
The RE of subcarrier can carry the CSI-RS of 32 ports.
Such as, illustrated with reference to Fig. 4 and table 1, system bandwidth (System bandwidth):27-63,
Some sub-band (subband) includes 4 PRB:PRB x, PRB x+1, PRB x+2, PRB x+3,
The position pattern for the 3 32port CSI-RS for carrying and transmitting in 4 PRB can be as shown in Figure 4.
After the resource location for determining mapping CSI-RS to above three example separately below, Neng Gouda
To density illustrate:
System bandwith==8-26RBs in example one, Subband size k==2RBs:One
Comprising a complete 32port CSI-RS in Subband 2 PRB, density is 0.5
RE/port/PRB。
System bandwith==27-63RBs in example two, Subband size k==3RBs:One
Comprising 2 complete 32port CSI-RS in Subband 3 PRB, density is 0.67
RE/port/PRB。
System bandwith==64-110RBs in example three, Subband size k==4RBs:One
Comprising 3 complete 32port CSI-RS in Subband 4 PRB, density is 0.75
RE/port/PRB。
It can be seen that, by using such scheme, continuous physical resource can be chosen from each sub-band
Block, the CSI-RS of M 32 ports is mapped in the Physical Resource Block of selection and transmitted.Such as
This, it becomes possible to the CSI-RS of 32 ports is transmitted from the continuous Physical Resource Block in sub-band, is made
Its density is obtained higher, so as to ensure that the covering performance of the CSI-RS of 32 ports.
Example IV,
The embodiments of the invention provide a kind of network equipment, as shown in fig. 6, including:
Resource chooses unit 61, the K Physical Resource Block PRB included for choosing in sub-band;Its
In, K is the integer more than or equal to 1, and the K Physical Resource Block is the continuous PRB on frequency domain;
Signal processing unit 62, for the CSI-RS of M 32 ports to be mapped into the K
PRB simultaneously transmits the CSI-RS;Wherein, M is whole less than or equal to K and more than or equal to 1
Number.
Resource chooses unit 61, for choosing every from the K Physical Resource Block PRB that sub-band is included
One PRB the second time slot;Wherein, K is the integer more than or equal to 1, the K physical resource
Block is the continuous PRB on frequency domain;Choose and preset from the second time slot of each PRB
Two aiming symbols of time-domain position;
Signal processing unit 62, for the CSI-RS of M 32 ports to be mapped into the K
In PRB described two aiming symbols and transmit the CSI-RS;Wherein, M be less than or equal to
K and the integer more than or equal to 1.
The present embodiment is according to TS36.213 forms (Table) 7.2.1-3 sub-bands sizes (subband
Size definition) is subsequently illustrated.Wherein, form (Table) 7.2.1-3 may refer to table 2:
Table 2
Preferably, described in the present embodiment preset time-domain position can according to the default position of actual conditions
Put, such as, can choose and be located in time domain at the 2nd, the 3rd character position referring to Fig. 5, as pre-
If time-domain position.
In addition, the present embodiment specifically provides the mode for the quantity for determining M, it is as follows:
Signal processing unit 62, for the quantity based on the corresponding PRB of system bandwidth and each
The quantity K for the PRB that sub-band is included, 32 ports for determining can to transmit in the K PRB
The quantity M of CSI-RS.
Further, the present embodiment is combined above-mentioned table 2, M operation is determined with following three example
Detailed description:
Example one,
The signal processing unit 62, the first threshold is in for the quantity as the corresponding PRB of system bandwidth
In the range of value and when PRB that each described sub-band is included quantity is four, the K is determined
The quantity M of the CSI-RS for 32 ports that can be transmitted in individual PRB is three, wherein, described the
One threshold range can be more than or equal to eight and less than or equal to 26.
Number based on the corresponding PRB quantity of system bandwidth and the corresponding PRB of each sub-band bandwidth
Amount, it may be determined that under the transmission mode scene that the above-mentioned table 2 in the corresponding agreement of this example is limited;Enter one
Step ground, the PRB included based on each sub-band quantity just can determine M.
It is to be appreciated that each PRB can include 7*12 resource element (RE, Resource
Element), that is, corresponded to subcarrier on symbol and 12 frequency domains in 7 time domains, often
One RE is 1 time-domain symbol of correspondence and 1 subcarrier in frequency domain;If necessary to 32 ports of carrying
CSI-RS, it is necessary at least 32 RE.
Continuous two symbols in time domain are chosen due to being arranged in the present embodiment in each PRB, that
That is, the RE of 16 subcarriers is at least chosen on frequency domain can carry 32 port
CSI-RS.
Such as, system bandwidth (System bandwidth):8-26, some sub-band (subband)
Including 4RBs:Comprising 3 complete 32port CSI-RS in one Subband 4 PRB,
Density is 0.75RE/port/PRB.
Example two,
The signal processing unit 62, the second threshold is in for the quantity as the corresponding PRB of system bandwidth
In the range of value and when PRB that each described sub-band is included quantity is three, the K is determined
The quantity M of the CSI-RS for 32 ports that can be transmitted in individual PRB is two, wherein, described the
Two threshold ranges can be more than or equal to 27 and less than or equal to 63.
Number based on the corresponding PRB quantity of system bandwidth and the corresponding PRB of each sub-band bandwidth
Amount, it may be determined that under the transmission mode scene that the above-mentioned table 1 in the corresponding agreement of this example is limited;Enter one
Step ground, the PRB included based on each sub-band quantity just can determine M.
It is to be appreciated that each PRB can include 7*12 resource element (RE, Resource
Element), that is, corresponded to subcarrier on symbol and 12 frequency domains in 7 time domains, often
One RE is 1 time-domain symbol of correspondence and 1 subcarrier in frequency domain;If necessary to carrying one 32
The CSI-RS of port, it is necessary at least 32 RE.Due to being arranged on each in the present embodiment
Continuous two symbols in time domain are chosen in PRB, then that is, 16 are at least chosen on frequency domain
The RE of subcarrier can carry the CSI-RS of 32 ports.
Such as, system bandwidth (System bandwidth):27-63, some sub-band (subband)
Including, comprising 4 complete 32port CSI-RS, density is 0.67RE/port/PRB in 6 PRB.
Example three,
The signal processing unit 62, the 3rd threshold is in for the quantity as the corresponding PRB of system bandwidth
In the range of value and when PRB that each described sub-band is included quantity is four, the K is determined
The quantity M of the CSI-RS for 32 ports that can be transmitted in individual PRB is three, wherein, described the
Three threshold ranges can be more than or equal to 64 and less than or equal to 110.
Number based on the corresponding PRB quantity of system bandwidth and the corresponding PRB of each sub-band bandwidth
Amount, it may be determined that under the transmission mode scene that the above-mentioned table 1 in the corresponding agreement of this example is limited;Enter one
Step ground, the PRB included based on each sub-band quantity just can determine M.
It is to be appreciated that each PRB can include 7*12 resource element (RE, Resource
Element), that is, corresponded to subcarrier on symbol and 12 frequency domains in 7 time domains, often
One RE is 1 time-domain symbol of correspondence and 1 subcarrier in frequency domain;If necessary to carrying one 32
The CSI-RS of port, it is necessary at least 32 RE.Due to being arranged on each in the present embodiment
Continuous two symbols in time domain are chosen in PRB, then that is, 16 are at least chosen on frequency domain
The RE of subcarrier can carry the CSI-RS of 32 ports.
Such as, system bandwidth (System bandwidth):27-63, some sub-band (subband)
Comprising 6 complete 32port CSI-RS in 8 PRB including a Subband, density is 0.75
RE/port/PRB。
It can be seen that, by using such scheme, continuous physical resource can be chosen from each sub-band
Block, the CSI-RS of M 32 ports is mapped in the Physical Resource Block of selection and transmitted.Such as
This, it becomes possible to the CSI-RS of 32 ports is transmitted from the continuous Physical Resource Block in sub-band, is made
Its density is obtained higher, so as to ensure that the covering performance of the CSI-RS of 32 ports.
If integrated module described in the embodiment of the present invention realized using in the form of software function module and as
Independent production marketing in use, can also be stored in a computer read/write memory medium.Base
Understand in such, the technical scheme of the embodiment of the present invention substantially contributes to prior art in other words
Part can be embodied in the form of software product, the computer software product is stored in a storage
In medium, including some instructions are to cause a computer equipment (can be personal computer, network
Equipment or the network equipment etc.) perform all or part of each of the invention embodiment methods described.And
Foregoing storage medium includes:USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or
CD etc. is various can be with the medium of store program codes.So, the embodiment of the present invention is not restricted to any spy
Fixed hardware and software is combined.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the protection model of the present invention
Enclose.
Claims (18)
1. a kind of method for transmitting signals, it is characterised in that methods described includes:
Choose the K Physical Resource Block PRB included in sub-band;Wherein, the K be more than or equal to
1 integer, the K Physical Resource Block is the continuous PRB on frequency domain;
The CSI-RS of M 32 ports is mapped into the K PRB and the CSI-RS is transmitted
Signal;Wherein, M is the integer less than or equal to K and more than or equal to 1.
2. according to the method described in claim 1, it is characterised in that included in the selection sub-band
K Physical Resource Block PRB, in addition to:
Each PRB the second time slot is chosen from the K Physical Resource Block PRB that sub-band is included;
The two targets symbol for obtaining default time-domain position is chosen from the second time slot of each PRB
Number;
Accordingly, the CSI-RS by M 32 ports maps to the K PRB and passed
The defeated CSI-RS, including:
The CSI-RS of M 32 ports is mapped to described two targets symbol of the K PRB
In number and transmit the CSI-RS;Wherein, M is whole less than or equal to K and more than or equal to 1
Number.
3. method according to claim 2, it is characterised in that described by M 32 ports
CSI-RS maps to two aiming symbols of predetermined position described in the K PRB, including:
The number for the PRB that quantity and each sub-band based on the corresponding PRB of system bandwidth are included
K is measured, the quantity M of the CSI-RS for 32 ports that can be transmitted in the K PRB is determined.
4. method according to claim 3, it is characterised in that described based on system bandwidth correspondence
PRB quantity and the PRB quantity K that includes of each sub-band, determine the K
The quantity M of the CSI-RS for 32 ports that can be transmitted in PRB, including:
When the corresponding PRB of system bandwidth quantity is in the range of first threshold and each height
When the quantity for the PRB that frequency band is included is two, 32 ends that can be transmitted in the K PRB are determined
The quantity M of the CSI-RS of mouth is one, wherein, the first threshold may range from being more than or equal to
Eight and less than or equal to 26.
5. method according to claim 3, it is characterised in that described based on system bandwidth correspondence
PRB quantity and the PRB quantity K that includes of each sub-band, determine the K
The quantity M of the CSI-RS for 32 ports that can be transmitted in PRB, including:
When the corresponding PRB of system bandwidth quantity is in the range of Second Threshold and each height
When the quantity for the PRB that frequency band is included is three, 32 ends that can be transmitted in the K PRB are determined
The quantity M of the CSI-RS of mouth is two, wherein, the Second Threshold may range from being more than or equal to
27 and less than or equal to 63.
6. method according to claim 3, it is characterised in that described based on system bandwidth correspondence
PRB quantity and the PRB quantity K that includes of each sub-band, determine the K
The quantity M of the CSI-RS for 32 ports that can be transmitted in PRB, including:
When the corresponding PRB of system bandwidth quantity is in the 3rd threshold range and each height
When the quantity for the PRB that frequency band is included is four, 32 ends that can be transmitted in the K PRB are determined
Mouthful CSI-RS quantity M be three, wherein, the 3rd threshold range can be more than or equal to
64 and less than or equal to 110.
7. method according to claim 3, it is characterised in that described based on system bandwidth correspondence
PRB quantity and the PRB quantity K that includes of each sub-band, determine the K
The quantity M of the CSI-RS for 32 ports that can be transmitted in PRB, including:
When the corresponding PRB of system bandwidth quantity is in the range of first threshold and each height
When the quantity for the PRB that frequency band is included is four, 32 ends that can be transmitted in the K PRB are determined
The quantity M of the CSI-RS of mouth is three, wherein, the first threshold may range from being more than or equal to
Eight and less than or equal to 26.
8. method according to claim 3, it is characterised in that described based on system bandwidth correspondence
PRB quantity and the PRB quantity K that includes of each sub-band, determine the K
The quantity M of the CSI-RS for 32 ports that can be transmitted in PRB, including:
When the corresponding PRB of system bandwidth quantity is in the range of Second Threshold and each height
When the quantity for the PRB that frequency band is included is six, it is determined that will can be transmitted in the K PRB 32
The quantity M of the CSI-RS of port be three, wherein, the Second Threshold may range from be more than etc.
In 27 and less than or equal to 63.
9. method according to claim 3, it is characterised in that described based on system bandwidth correspondence
PRB quantity and the PRB quantity K that includes of each sub-band, determine the K
The quantity M of the CSI-RS for 32 ports that can be transmitted in PRB, including:
When the corresponding PRB of system bandwidth quantity is in the 3rd threshold range and each height
When the quantity for the PRB that frequency band is included is six, 32 ends that can be transmitted in the K PRB are determined
Mouthful CSI-RS quantity M be four, wherein, the 3rd threshold range can be more than or equal to
64 and less than or equal to 110.
10. a kind of network equipment, it is characterised in that including:
Resource chooses unit, the K Physical Resource Block PRB included for choosing in sub-band;Wherein,
K is the integer more than or equal to 1, and the K Physical Resource Block is the continuous PRB on frequency domain;
Signal processing unit, for the CSI-RS of M 32 ports to be mapped into the K PRB
And transmit the CSI-RS;Wherein, M is the integer less than or equal to K and more than or equal to 1.
11. the network equipment according to claim 10, it is characterised in that
Resource chooses unit, for choosing each from the K Physical Resource Block PRB that sub-band is included
Individual PRB the second time slot;Chosen from the second time slot of each PRB and obtain default time domain position
Two aiming symbols put;
Accordingly, the signal processing unit, for the CSI-RS of M 32 ports to be mapped
Into described two aiming symbols of the K PRB and transmit the CSI-RS;Wherein, M
For the integer less than or equal to K and more than or equal to 1.
12. the network equipment according to claim 11, it is characterised in that
The signal processing unit, for the quantity based on the corresponding PRB of system bandwidth and each
The quantity K for the PRB that individual sub-band is included, determines 32 ports that can be transmitted in the K PRB
CSI-RS quantity M.
13. the network equipment according to claim 12, it is characterised in that
Signal processing unit, first threshold scope is in for the quantity as the corresponding PRB of system bandwidth
When the quantity for the PRB that each interior and described sub-band is included is two, the K PRB is determined
In the quantity M of the CSI-RSs of 32 ports that can transmit be one, wherein, the first threshold
It may range from being more than or equal to eight and less than or equal to 26.
14. the network equipment according to claim 12, it is characterised in that
Signal processing unit, Second Threshold scope is in for the quantity as the corresponding PRB of system bandwidth
When the quantity for the PRB that each interior and described sub-band is included is three, the K PRB is determined
In the quantity M of the CSI-RSs of 32 ports that can transmit be two, wherein, the Second Threshold
It may range from being more than or equal to 27 and less than or equal to 63.
15. the network equipment according to claim 12, it is characterised in that
Signal processing unit, the 3rd threshold range is in for the quantity as the corresponding PRB of system bandwidth
When the quantity for the PRB that each interior and described sub-band is included is four, the K PRB is determined
In the quantity M of the CSI-RSs of 32 ports that can transmit be three, wherein, the 3rd threshold value
It may range from being more than or equal to 64 and less than or equal to 110.
16. the network equipment according to claim 12, it is characterised in that
Signal processing unit, first threshold scope is in for the quantity as the corresponding PRB of system bandwidth
When the quantity for the PRB that each interior and described sub-band is included is four, the K PRB is determined
In the quantity M of the CSI-RSs of 32 ports that can transmit be three, wherein, the first threshold
It may range from being more than or equal to eight and less than or equal to 26.
17. the network equipment according to claim 12, it is characterised in that
Signal processing unit, Second Threshold scope is in for the quantity as the corresponding PRB of system bandwidth
When the quantity for the PRB that each interior and described sub-band is included is six, it is determined that by the K PRB
In the quantity M of the CSI-RSs of 32 ports that can transmit be three, wherein, the Second Threshold
It may range from being more than or equal to 27 and less than or equal to 63.
18. the network equipment according to claim 12, it is characterised in that
Signal processing unit, the 3rd threshold range is in for the quantity as the corresponding PRB of system bandwidth
When the quantity for the PRB that each interior and described sub-band is included is six, the K PRB is determined
In the quantity M of the CSI-RSs of 32 ports that can transmit be four, wherein, the 3rd threshold value
It may range from being more than or equal to 64 and less than or equal to 110.
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