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 PDF

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Publication number
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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prb
csi
equal
band
ports
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CN201610213086.5A
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CN107277822B (en
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王飞
童辉
王启星
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China Mobile Communications Group Co Ltd
China Mobile Communications Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Communications Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18Network planning tools
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

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

A kind of method for transmitting signals and the network equipment
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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CN102792621A (en) * 2010-01-12 2012-11-21 三星电子株式会社 Method for processing CSI-RS in wireless communication system
CN104767592A (en) * 2014-01-02 2015-07-08 中国移动通信集团公司 Method and equipment for configuring ports of CSI-RSs (Channel State Information Reference Signal), and method and equipment for transmitting CSI-RSs

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CN102118340A (en) * 2010-01-06 2011-07-06 中兴通讯股份有限公司 Mapping method, transmitting method and transmitting system for channel state information reference signal
CN102792621A (en) * 2010-01-12 2012-11-21 三星电子株式会社 Method for processing CSI-RS in wireless communication system
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