CN104767592A - Method and equipment for configuring ports of CSI-RSs (Channel State Information Reference Signal), and method and equipment for transmitting CSI-RSs - Google Patents

Method and equipment for configuring ports of CSI-RSs (Channel State Information Reference Signal), and method and equipment for transmitting CSI-RSs Download PDF

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CN104767592A
CN104767592A CN201410001524.2A CN201410001524A CN104767592A CN 104767592 A CN104767592 A CN 104767592A CN 201410001524 A CN201410001524 A CN 201410001524A CN 104767592 A CN104767592 A CN 104767592A
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csi
group
indication signaling
port
resource block
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CN104767592B (en
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刘建军
郑毅
童辉
王飞
侯雪颖
胡臻平
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China Mobile Communications Group Co Ltd
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China Mobile Communications Group Co Ltd
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Priority to PCT/CN2014/093452 priority patent/WO2015101150A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0417—Feedback systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]

Abstract

The invention discloses a method and equipment for configuring ports of CSI-RSs (Channel State Information Reference Signal), and a method and equipment for transmitting the CSI-RSs. The method for configuring the ports comprises the following steps that the CSI-RSs of 8 ports in the CSI-RSs of X ports in a 3D-MIMO (3Dimensio-Multiple Input Multiple Output) as a group are split to X/8 CSI-RS groups, and CSI-RS patterns of each CSI-RS group are compatible with CSI-RS patterns of the specific 8 ports, wherein X=8*n, and n is an integer which is not less than 2; and resources are allocated between the different CSI-RS groups by adopting a frequency division multiplexing and/or time division multiplexing manner. In embodiments of the invention, through carrying out necessary enhancement and expansion on the existing CSI-RS Pattern design, the CSI-RSs of more logic ports in the 3D-MIMO system can be supported. Furthermore, when a new indication signaling is introduced to support detection of the user equipment for configuration of 3D-MIMO multi-port CSI-RSs, backward compatibility of configuration of a network side for the CSI-RSs and detection of the user equipment for the CSI-RSs can be kept to the greatest extent.

Description

The port arrangement of a kind of CSI-RS, the method and apparatus of CSI-RS transmission
Technical field
The present invention relates to communication technical field, especially relate to port configuration method and the equipment of a kind of CSI-RS, and further relate to a kind of method and apparatus of CSI-RS transmission.
Background technology
Existing communication system is (as LTE(Long Term Evolution, Long Term Evolution) system etc.) that adopt is all 2D-MIMO(2Dimension-Multiple Input Multiple Output, two dimension multiple-input and multiple-output) technology, its general principle is: utilize the two-dimensional space degree of freedom on horizontal plane to improve transmission quality, and improve power system capacity.Wherein, 2D-MIMO can according to UE(User Equipment, subscriber equipment) difference in the horizontal plane dimensions of geographical position forms the narrow beam following the tracks of user, while user provides service, suppressing the interference to other user, as shown in Figure 1, is the application scenarios schematic diagram of 2D-MIMO.UE1, UE2, UE4 are different from the angle of base station equipment in horizontal plane dimensions, therefore base station equipment can be formed in horizontal plane dimensions 3 aim at respectively UE1, UE2, UE4 travel direction send narrow beams serve; But, UE2 with UE3 is identical with the angle of base station equipment in horizontal dimensions, but UE2 with UE3 is different from the relative angle of base station equipment in the vertical dimension., when so the narrow beam direction that sends UE2 with UE3 of base station equipment is identical, then mutually can disturb, then affect QoS of customer.
How future broadband wireless communication systems improves spectrum efficiency further, the vertical space degree of freedom is fully excavated in comparatively feasible direction, by 2D-MIMO technological expansion to 3D-MIMO(3Dimension-MultipleInput Multiple Output, three-dimensional multiple-input and multiple-output) technology, to make full use of 3 dimensions in space to improve systematic function.As shown in Figure 2, be the application scenarios schematic diagram of 3D-MIMO.For the directional antenna beam of UE2 and UE3, according to the difference of UE2 and UE3 in vertical direction and base station equipment angle, once distinguish again in the vertical dimension., namely form the narrow beam accurately aiming at user at 3 dimension spaces respectively, and provide service for it, improve system spectral efficiency.3D-MIMO technology fully can excavate the degree of freedom of space 3 dimension space, and improving system spectral efficiency further, reduce presence of intercell interference, improve entire system performance, is the developing direction in MIMO technology future.In order to realize the degree of freedom of 3D-MIMO vertical direction, need to improve antenna, as shown in Figure 3, for 3D antenna schematic diagram, N × M that original N antenna is expanded to matrix form by 3D antenna ties up antenna, wherein horizontal direction has N root antenna, and vertical direction has M root antenna, and every root horizontal antenna is originally made up of the antenna element of M (such as 8-10) vertical direction.
For LTE-A(LTE-Advanced, senior LTE) the R10 stage, UE is transmission mode 9 times, need based on CSI-RS(Channel State Information Reference Signal, channel state information reference signals) measure, obtain CSI(Channel State Information, channel condition information), and carry out CQI(Channel Quality Indicator, and channel quality indicates) feedback.CSI-RS is maximum supports 8 logic ports (8 CSI-RS Ports).CSI-RS periodically sends, and its cycle is the multiple of 5ms, and sends on Whole frequency band.In the subframe of CSI-RS place, 8 groups of different CSI-RSPattern(patterns can be configured), as shown in Figure 4 A and 4 B shown in FIG., be the CSI-RSpattern of 8 group of 8 port that the R10 stage defines.CSI-RS Pattern1 in Fig. 4 A comprises 5 kinds, CSI-RS pattern2 in Fig. 4 B comprises 3 kinds, often kind of 8 port CSI-RS pattern are at PRB(Physical Resource Block, Physical Resource Block) in the running time-frequency resource position that takies different, in Fig. 4 A and Fig. 4 B, 8 RE(ResourceElement of same format, resource particle), namely 0,1,, 7 represent the resource that in same 8 port CSI-RS pattern, 8 logic ports take, and different-format represents the resource that 8 different port CSI-RS pattern take.
In 3D-MIMO system, owing to introducing the antenna element of vertical dimensions, add the quantity of antenna element, therefore the quantity of logic port also needs further expansion, such as, when antenna (corresponding 64 antenna element) are tieed up in N × M=8 × 8, need the CSI-RS reference signal of design 64 logic ports.Obviously, the maximum CSI-RS that only can support 8 logic ports of CSI-RS of existing design, is not enough to the CSI-RS of support 64 logic ports, needs to carry out necessary enhancing and expansion to the design of existing CSI-RS Pattern.
Summary of the invention
The embodiment of the present invention provides the port arrangement of a kind of CSI-RS, the method and apparatus of CSI-RS transmission, to carry out necessary enhancing and expansion to the design of existing CSI-RS Pattern.
In order to achieve the above object, the embodiment of the present invention provides the port configuration method of a kind of channel state information reference signals CSI-RS, said method comprising the steps of:
By the CSI-RS of X port in three-dimensional multiple-input and multiple-output 3D-MIMO system, be one group with the CSI-RS of 8 ports, be split as X/8 CSI-RS group, the compatible specific 8 port CSI-RS patterns of CSI-RS pattern of every CSI-RS group; Wherein, X=8*n, n be more than or equal to 2 integer;
Frequency division multiplexing and/or time-multiplexed mode Resources allocation is adopted between different CSI-RS groups.
The described process adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS groups, specifically comprises: X/8 CSI-RS group is distributed in respectively on frequency domain X/8 Physical Resource Block on; Wherein, a described X/8 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution; Or,
When k1 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X/8 CSI-RS group is distributed in respectively on frequency domain m1 Physical Resource Block on; Wherein, a described m1 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, and described m1 is for round up to (X/8)/k1, and described k1 is less than or equal to (X/8).
The described process adopting time-multiplexed mode Resources allocation between different CSI-RS groups, specifically comprises: X/8 CSI-RS group be distributed in respectively in time domain within X/8 subframe; Wherein, a described X/8 subframe centralized distribution or distributed distribution in time domain; Or, when k2 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X/8 CSI-RS group is distributed in respectively in time domain within m2 subframe; Wherein, a described m2 subframe is centralized distribution or distributed distribution in time domain, and described m2 is for round up to (X/8)/k2, and described k2 is less than or equal to (X/8).
The described process adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS groups, specifically comprise: X1 CSI-RS group is distributed in respectively on frequency domain X1 Physical Resource Block on, and X2 CSI-RS group is distributed within X2 subframe respectively in time domain; Wherein, X1*X2=X/8, and a described X1 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, and a described X2 subframe centralized distribution or distributed distribution in time domain; Or,
When k3 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X3 CSI-RS group is distributed in respectively on frequency domain m3 Physical Resource Block on, and X4 CSI-RS group is distributed within m4 subframe respectively in time domain; Wherein, a described m3 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, a described m4 subframe is centralized distribution or distributed distribution in time domain, X3*X4=X/8, described m3 is for round up to (X3/8)/k3, described m4 is for round up to (X4/8)/k3, and described k3 is less than or equal to (X/8).
Described method also comprises: when being configured the CSI-RS pattern of a CSI-RS group in X/8 CSI-RS group, the CSI-RS pattern configuring described CSI-RS group full bandwidth on frequency domain sends, and the CSI-RS pattern configuring a described CSI-RS group in time domain with cycle T cSI-RS, sub-frame offset Δ cSI-RSperiodically send.
Described specific 8 port CSI-RS patterns, are specially: one group of 8 port CSI-RS pattern in 8 group of 8 port CSI-RS pattern of the R10 stage definitions of senior Long Term Evolution lte-a system.
The embodiment of the present invention provides a kind of and is applied to the method that said method carries out CSI-RS transmission, said method comprising the steps of: network equipment sends the first indication signaling to subscriber equipment, carry the grouping serial number of CSI-RS group in described first indication signaling, and comprise the CSI-RS of 8 ports in described CSI-RS group; And/or when adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS group, network equipment sends the second indication signaling to subscriber equipment, in described second indication signaling, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group; Or network equipment sends the 3rd indication signaling and the 4th indication signaling to subscriber equipment, carries the frequency domain resource block gap of CSI-RS group, carry the frequency domain resource block offset of CSI-RS group in described 4th indication signaling in described 3rd indication signaling.
Described method also comprises: when adopting time-multiplexed mode Resources allocation between different CSI-RS group, described network equipment sends the 5th indication signaling to described subscriber equipment, carries chronon frame period and the chronon frame shifting amount of CSI-RS group in described 5th indication signaling; Or described network equipment sends the 6th indication signaling and the 7th indication signaling to described subscriber equipment, carries the chronon frame period of CSI-RS group, carry the chronon frame shifting amount of CSI-RS group in described 7th indication signaling in described 6th indication signaling; When adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS group, described network equipment sends the 8th indication signaling to described subscriber equipment, carries the frequency domain resource block gap of CSI-RS group and frequency domain resource block offset, chronon frame period of CSI-RS group and chronon frame shifting amount in described 8th indication signaling; Or, described network equipment sends the 9th indication signaling and the tenth indication signaling to described subscriber equipment, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described 9th indication signaling, in described tenth indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, described network equipment sends the 11 indication signaling, the 12 indication signaling, the 13 indication signaling, the 14 indication signaling to described subscriber equipment, the frequency domain resource block gap of CSI-RS group is carried in described 11 indication signaling, the frequency domain resource block offset of CSI-RS group is carried in described 12 indication signaling, carry the chronon frame period of CSI-RS group in described 13 indication signaling, in described 14 indication signaling, carry the chronon frame shifting amount of CSI-RS group.
The grouping serial number of described CSI-RS group is respectively 0,1 ...., (X/8)-1; Grouping serial number is that the 1st port in the corresponding X of a CSI-RS group port of 0 is to the 8th port, grouping serial number is that the 9th port in the corresponding X of a CSI-RS group port of 1 is to the 16th port, ..., grouping serial number is that (X-8) individual port in the corresponding X of a CSI-RS group port of (X/8)-1 is to X port.
Described method also comprises: described network equipment sends the 15 indication signaling to subscriber equipment, carries CSI-RS pattern mapping parameters Number of CSI reference signalsconfigured in the 15 indication signaling; And/or described network equipment sends the 16 indication signaling to subscriber equipment, carries CSI-RS pattern mapping parameters CSI reference signal Configuration in the 16 indication signaling.
The embodiment of the present invention provides a kind of and is applied to the method that said method carries out CSI-RS transmission, said method comprising the steps of: subscriber equipment receives the first indication signaling from network equipment, carry the grouping serial number of CSI-RS group in described first indication signaling, and comprise the CSI-RS of 8 ports in described CSI-RS group; Described subscriber equipment, after receiving the first indication signaling, utilizes the grouping serial number of the CSI-RS group of carrying in described first indication signaling to determine the described grouping serial number of CSI-RS group and the mapping relations of port; And/or, when adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS group, subscriber equipment receives the second indication signaling from network equipment, carries frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described second indication signaling; Or subscriber equipment receives from the 3rd indication signaling of network equipment and the 4th indication signaling, carries the frequency domain resource block gap of CSI-RS group, carry the frequency domain resource block offset of CSI-RS group in described 4th indication signaling in described 3rd indication signaling.
Described method also comprises: when adopting time-multiplexed mode Resources allocation between different CSI-RS group, described subscriber equipment receives the 5th indication signaling from network equipment, carries chronon frame period and the chronon frame shifting amount of CSI-RS group in described 5th indication signaling; Or described subscriber equipment receives the 6th indication signaling from network equipment and the 7th indication signaling, carries the chronon frame period of CSI-RS group, carry the chronon frame shifting amount of CSI-RS group in described 7th indication signaling in described 6th indication signaling; When adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS group, described subscriber equipment receives the 8th indication signaling from described network equipment, carries the frequency domain resource block gap of CSI-RS group and frequency domain resource block offset, chronon frame period of CSI-RS group and chronon frame shifting amount in described 8th indication signaling; Or, described subscriber equipment receives the 9th indication signaling from described network equipment and the tenth indication signaling, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described 9th indication signaling, in described tenth indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, described subscriber equipment receives the 11 indication signaling, the 12 indication signaling, the 13 indication signaling, the 14 indication signaling from described network equipment, the frequency domain resource block gap of CSI-RS group is carried in described 11 indication signaling, the frequency domain resource block offset of CSI-RS group is carried in described 12 indication signaling, carry the chronon frame period of CSI-RS group in described 13 indication signaling, in described 14 indication signaling, carry the chronon frame shifting amount of CSI-RS group.
Described subscriber equipment utilizes the grouping serial number of the CSI-RS group of carrying in the first indication signaling to determine the described grouping serial number of CSI-RS group and the mapping relations of port, specifically comprise: be respectively 0 at the grouping serial number of CSI-RS group, 1, ., (X/8)-1 time, described subscriber equipment determines that described grouping serial number is that the 1st port in the corresponding X of a CSI-RS group port of 0 is to the 8th port, described grouping serial number is that the 9th port in the corresponding X of a CSI-RS group port of 1 is to the 16th port, ..., described grouping serial number is that (X-8) individual port in the corresponding X of a CSI-RS group port of (X/8)-1 is to X port.
Described method also comprises: described subscriber equipment receives the 15 indication signaling from network equipment, carries CSI-RS pattern mapping parameters Number of CSI reference signalsconfigured in the 15 indication signaling; And/or described subscriber equipment receives the 16 indication signaling from network equipment, carries CSI-RS pattern mapping parameters CSI reference signal Configuration in the 16 indication signaling; Described subscriber equipment utilizes CSI-RS pattern mapping parameters Number of CSI reference signalsconfigured and/or CSI-RS pattern mapping parameters CSI reference signal Configuration to determine the CSI-RS group time-frequency domain original position that resource particle RE maps in Physical Resource Block PRB.
The embodiment of the present invention provides the port configuration device of a kind of channel state information reference signals CSI-RS, the port configuration device of described CSI-RS specifically comprises: processing module, for the CSI-RS by X port in three-dimensional multiple-input and multiple-output 3D-MIMO system, it is one group with the CSI-RS of 8 ports, be split as X/8 CSI-RS group, the compatible specific 8 port CSI-RS patterns of CSI-RS pattern of every CSI-RS group; Wherein, X=8*n, n be more than or equal to 2 integer; Distribution module, for adopting frequency division multiplexing and/or time-multiplexed mode Resources allocation between different CSI-RS groups.
Described distribution module, specifically for X/8 CSI-RS group is distributed in respectively on frequency domain X/8 Physical Resource Block on; Wherein, a described X/8 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution; Or, when k1 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X/8 CSI-RS group is distributed in respectively on frequency domain m1 Physical Resource Block on; Wherein, a described m1 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, and described m1 is for round up to (X/8)/k1, and described k1 is less than or equal to (X/8).
Described distribution module, specifically for being distributed within X/8 subframe respectively by X/8 CSI-RS group in time domain; A described X/8 subframe is centralized distribution or distributed distribution in time domain; Or, when k2 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X/8 CSI-RS group is distributed in respectively in time domain within m2 subframe; A described m2 subframe is centralized distribution or distributed distribution in time domain, and described m2 is for round up to (X/8)/k2, and described k2 is less than or equal to (X/8).
Described distribution module, specifically for X1 CSI-RS group is distributed in respectively on frequency domain X1 Physical Resource Block on, and X2 CSI-RS group is distributed within X2 subframe respectively in time domain; Wherein, X1*X2=X/8, and a described X1 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, and a described X2 subframe centralized distribution or distributed distribution in time domain; Or, when k3 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X3 CSI-RS group is distributed in respectively on frequency domain m3 Physical Resource Block on, and X4 CSI-RS group is distributed within m4 subframe respectively in time domain; Wherein, a described m3 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, a described m4 subframe is centralized distribution or distributed distribution in time domain, X3*X4=X/8, described m3 is for round up to (X3/8)/k3, described m4 is for round up to (X4/8)/k3, and described k3 is less than or equal to (X/8).
Described distribution module, be further used for when being configured the CSI-RS pattern of a CSI-RS group in X/8 CSI-RS group, the CSI-RS pattern configuring described CSI-RS group full bandwidth on frequency domain sends, and the CSI-RS pattern configuring a described CSI-RS group in time domain with cycle T cSI-RS, sub-frame offset Δ cSI-RSperiodically send.
Described specific 8 port CSI-RS patterns, are specially: one group of 8 port CSI-RS pattern in 8 group of 8 port CSI-RS pattern of the R10 stage definitions of senior Long Term Evolution lte-a system.
The embodiment of the present invention provides a kind of and is applied to the network equipment that the said equipment carries out channel state information reference signals CSI-RS transmission, and described network equipment comprises:
Sending module, for sending the first indication signaling to subscriber equipment, carries the grouping serial number of CSI-RS group, and comprises the CSI-RS of 8 ports in described CSI-RS group in described first indication signaling; And/or, when adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS group, described sending module, for sending the second indication signaling to subscriber equipment, carries frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described second indication signaling; Or, described sending module, for sending the 3rd indication signaling and the 4th indication signaling to subscriber equipment, carrying the frequency domain resource block gap of CSI-RS group in described 3rd indication signaling, in described 4th indication signaling, carrying the frequency domain resource block offset of CSI-RS group.
Described sending module, time also for adopting time-multiplexed mode Resources allocation between different CSI-RS group, sending the 5th indication signaling to described subscriber equipment, carrying chronon frame period and the chronon frame shifting amount of CSI-RS group in described 5th indication signaling; Or, send the 6th indication signaling and the 7th indication signaling to described subscriber equipment, carry the chronon frame period of CSI-RS group in described 6th indication signaling, in described 7th indication signaling, carry the chronon frame shifting amount of CSI-RS group; When adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS group, send the 8th indication signaling to described subscriber equipment, in described 8th indication signaling, carry the frequency domain resource block gap of CSI-RS group and frequency domain resource block offset, chronon frame period of CSI-RS group and chronon frame shifting amount; Or, the 9th indication signaling and the tenth indication signaling is sent to described subscriber equipment, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described 9th indication signaling, in described tenth indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, the 11 indication signaling, the 12 indication signaling, the 13 indication signaling, the 14 indication signaling is sent to described subscriber equipment, the frequency domain resource block gap of CSI-RS group is carried in described 11 indication signaling, the frequency domain resource block offset of CSI-RS group is carried in described 12 indication signaling, carry the chronon frame period of CSI-RS group in described 13 indication signaling, in described 14 indication signaling, carry the chronon frame shifting amount of CSI-RS group.
The grouping serial number of described CSI-RS group is respectively 0,1 ...., (X/8)-1; Wherein, grouping serial number is that the 1st port in the corresponding X of a CSI-RS group port of 0 is to the 8th port, grouping serial number is that the 9th port in the corresponding X of a CSI-RS group port of 1 is to the 16th port, ..., grouping serial number is that (X-8) individual port in the corresponding X of a CSI-RS group port of (X/8)-1 is to X port.
Described sending module, also for sending the 15 indication signaling to described subscriber equipment, carries CSI-RS pattern mapping parameters Number of CSI reference signalsconfigured in described 15 indication signaling; And/or, send the 16 indication signaling to described subscriber equipment, in described 16 indication signaling, carry CSI-RS pattern mapping parameters CSI reference signal Configuration.
The embodiment of the present invention provides a kind of and is applied to the subscriber equipment that the said equipment carries out CSI-RS transmission, described subscriber equipment specifically comprises: receiver module, for receiving the first indication signaling from network equipment, carry the grouping serial number of CSI-RS group in described first indication signaling, and comprise the CSI-RS of 8 ports in described CSI-RS group; And/or, when adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS group, receive the second indication signaling from network equipment, in described second indication signaling, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group; Or, receive the 3rd indication signaling from network equipment and the 4th indication signaling, in described 3rd indication signaling, carry the frequency domain resource block gap of CSI-RS group, in described 4th indication signaling, carry the frequency domain resource block offset of CSI-RS group; Determination module, for after receiving the first indication signaling, utilizes the grouping serial number of the CSI-RS group of carrying in described first indication signaling to determine the described grouping serial number of CSI-RS group and the mapping relations of port.
Described receiver module, time also for adopting time-multiplexed mode Resources allocation between different CSI-RS group, receive the 5th indication signaling from network equipment, in described 5th indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, receive the 6th indication signaling from network equipment and the 7th indication signaling, in described 6th indication signaling, carry the chronon frame period of CSI-RS group, in described 7th indication signaling, carry the chronon frame shifting amount of CSI-RS group; When adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS group, receive from the 8th indication signaling of network equipment, in described 8th indication signaling, carry the frequency domain resource block gap of CSI-RS group and frequency domain resource block offset, chronon frame period of CSI-RS group and chronon frame shifting amount; Or, receive the 9th indication signaling from network equipment and the tenth indication signaling, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described 9th indication signaling, in described tenth indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, receive the 11 indication signaling, the 12 indication signaling, the 13 indication signaling, the 14 indication signaling from network equipment, the frequency domain resource block gap of CSI-RS group is carried in described 11 indication signaling, the frequency domain resource block offset of CSI-RS group is carried in described 12 indication signaling, carry the chronon frame period of CSI-RS group in described 13 indication signaling, in described 14 indication signaling, carry the chronon frame shifting amount of CSI-RS group.
Described determination module, specifically for being respectively 0 at the grouping serial number of described CSI-RS group, 1,., (X/8)-1 time, determine described grouping serial number be the 1st port in the corresponding X of a CSI-RS group port of 0 to the 8th port, determine that described grouping serial number is that the 9th port in the corresponding X of a CSI-RS group port of 1 is to the 16th port, ..., determine that described grouping serial number is that (X-8) individual port in the corresponding X of a CSI-RS group port of (X/8)-1 is to X port.
Described receiver module, also for receiving the 15 indication signaling from network equipment, carries CSI-RS pattern mapping parameters Number of CSI reference signalsconfigured in described 15 indication signaling; And/or, receive the 16 indication signaling from described network equipment, in described 16 indication signaling, carry CSI-RS pattern mapping parameters CSI reference signal Configuration;
Described determination module, also for utilizing CSI-RS pattern mapping parameters Number of CSI referencesignals configured and/or CSI-RS pattern mapping parameters CSI reference signal Configuration to determine the CSI-RS group time-frequency domain original position that resource particle RE maps in Physical Resource Block PRB.
Compared with prior art, the embodiment of the present invention at least has the following advantages: in the embodiment of the present invention, carry out necessary enhancing and expansion by designing (8 port CSI-RS Pattern namely in lte-a system design) to existing CSI-RS Pattern, thus the CSI-RS of more logic ports in 3D-MIMO system (as 32 ports or 64 ports etc.) can be supported.Further, while introducing new indication signaling and supporting the detection that subscriber equipment configure 3D-MIMO multiport CSI-RS, network side can be at utmost kept to configure the backwards compatibility of CSI-RS and subscriber equipment detection CSI-RS.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the application scenarios schematic diagram of 2D-MIMO of the prior art;
Fig. 2 is the application scenarios schematic diagram of 3D-MIMO of the prior art;
Fig. 3 is 3D antenna schematic diagram of the prior art;
Fig. 4 A and Fig. 4 B is the CSI-RS pattern of 8 group of 8 port of the prior art;
Fig. 5 is the port configuration method schematic flow sheet of a kind of CSI-RS that the embodiment of the present invention one provides;
Fig. 6 is the port configuration device structural representation of a kind of CSI-RS that the embodiment of the present invention three provides;
Fig. 7 is the structural representation of a kind of network equipment that the embodiment of the present invention four provides;
Fig. 8 is the structural representation of a kind of subscriber equipment that the embodiment of the present invention five provides.
Embodiment
Below in conjunction with the accompanying drawing in the present invention, be clearly and completely described the technical scheme in the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
For problems of the prior art, the embodiment of the present invention one provides the port configuration method of a kind of CSI-RS, the port configuration method of this CSI-RS can be applied on network equipment (as base station equipment), and as shown in Figure 5, the port configuration method of this CSI-RS can comprise the following steps:
Step 501, by the CSI-RS of the port of the X in 3D-MIMO system, is one group with the CSI-RS of 8 ports, is split as X/8 CSI-RS group, the compatible specific 8 port CSI-RS patterns of CSI-RS pattern of every CSI-RS group; Wherein, X=8*n, n be more than or equal to 2 integer.
In the embodiment of the present invention, specific 8 port CSI-RS patterns are specially: one group of 8 port CSI-RS pattern in 8 group of 8 port CSI-RS pattern of the R10 stage definitions of lte-a system.Such as, specific 8 port CSI-RS patterns are one group of 8 port CSI-RS pattern in 8 group of 8 port CSI-RS pattern as shown in Figure 4 A and 4 B shown in FIG., and the CSI-RS pattern shown in Fig. 4 A and Fig. 4 B repeats no longer in detail.
In a kind of preferred implementation of the embodiment of the present invention, at the CSI-RS by the port of the X in 3D-MIMO system, be one group with the CSI-RS of 8 ports, when being split as X/8 CSI-RS group, the grouping serial number of CSI-RS group is respectively 0,1 ...., (X/8)-1; Wherein, grouping serial number is that the 1st port in the corresponding X of a CSI-RS group port of 0 is to the 8th port, grouping serial number is that the 9th port in the corresponding X of a CSI-RS group port of 1 is to the 16th port, ..., by that analogy, grouping serial number is that (X-8) individual port in the corresponding X of a CSI-RS group port of (X/8)-1 is to X port.
In the embodiment of the present invention, expanded by 8 group of 8 port CSI-RS pattern of the R10 stage definitions to lte-a system, to realize CSI-RS design (as 32 ports or 64 ports etc.) of 3D-MIMO system, by the CSI-RS of the port of the X in 3D-MIMO system (as 32 port/64 ports etc.), be that assembling and dismantling are divided into some groups with 8 ports, wherein the 8 port CSI-RS pattern of the compatible LTE-A R10 of each group CSI-RS design (only port numbers maps different), thus reduce 3D-MIMO system to the impact of CSI-RS scheme in existing specification.Example is designed to the CSI-RS Pattern of X port (as 32 ports, 64 ports etc.), then CSI-RS splits into X/8 group, and the 0th group of corresponding ports 0 ~ 7 maps, and the 1st group of corresponding ports 8 ~ 15 maps, the rest may be inferred, (X/8)-1 group corresponding ports (X-8) ~ (X-1) map.
Step 502, the mode Resources allocation of frequency division multiplexing (FDM) and/or Time Division Multiplexing is adopted between different CSI-RS groups, namely between different CSI-RS groups, adopt the mode Resources allocation of frequency division multiplexing, or, time-multiplexed mode Resources allocation is adopted between different CSI-RS groups, or, between different CSI-RS groups, adopt frequency division multiplexing and time-multiplexed mode Resources allocation.
Mode one, between different CSI-RS groups, adopt the mode Resources allocation of frequency division multiplexing.
Situation one, X/8 CSI-RS group is distributed in X/8 Physical Resource Block respectively on (PRB Pair) on frequency domain; Wherein, this X/8 Physical Resource Block is to can centralized distribution on frequency domain (namely on frequency domain continuous print distribution) or distributed distribution (namely discrete on frequency domain distribution).
If situation two designs each Physical Resource Block and sends many groups 8 port CSI-RS to configuring in (PRB Pair), then 3D-MIMO system also can internally send many groups 8 port CSI-RS(such as k1 group etc. with 1 Physical Resource Block).Based on this, when k1 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X/8 CSI-RS group can be distributed in respectively on frequency domain m1 Physical Resource Block on; Wherein, m1 Physical Resource Block is to can centralized distribution on frequency domain (i.e. continuous print distribution on frequency domain) or distributed distribution (namely discrete on frequency domain distribution), and m1 is for round up to (X/8)/k1, and k1 is less than or equal to (X/8).Based on aforesaid way, only need to be sent within (the X/8)/k1 of frequency domain rounds up a PRB Pair, intersubband that whole X CSI-RS port send can have been reduced every the impact on Channel Detection and interferometry of, reduction frequency selective fading.
Mode two, between different CSI-RS groups, adopt time-multiplexed mode Resources allocation.
Situation one, X/8 CSI-RS group is distributed within X/8 subframe (Subframe) respectively in time domain; Wherein, this X/8 subframe can centralized distribution in time domain (i.e. continuous print distribution in time domain, is mainly applicable to FDD LTE system) or distributed distribution (namely discrete in time domain distribution).
If situation two designs each Physical Resource Block and sends many groups 8 port CSI-RS to configuring in (PRB Pair), then 3D-MIMO system also can internally send many groups 8 port CSI-RS(such as k2 group etc. with 1 Physical Resource Block).Based on this, when k2 group 8 port CSI-RS internally can be sent at a Physical Resource Block, can X/8 CSI-RS group be distributed within m2 subframe respectively in time domain; Wherein, m2 subframe centralized distribution in time domain (i.e. continuous print distribution in time domain) or distributed distribution (namely discrete in time domain distribution), m2 is for round up to (X/8)/k2, and k2 is less than or equal to (X/8).Based on aforesaid way, only need to be sent within (the X/8)/k2 of time domain rounds up a subframe (Subframe), the time interval that whole X CSI-RS port sends can be reduced, and the impact of time domain channel change on Channel Detection and interferometry can have been reduced.
Mode three, between different CSI-RS groups, adopt frequency division multiplexing and time-multiplexed mode Resources allocation.
Situation one, X1 CSI-RS group is distributed in X1 Physical Resource Block respectively on (PRBPair) on frequency domain, and X2 CSI-RS group is distributed in respectively in time domain within X2 subframe (Subframe); Wherein, X1*X2=X/8, and this X1 Physical Resource Block is to can centralized distribution on frequency domain (namely on frequency domain continuous print distribution) or distributed distribution (namely discrete on frequency domain distribution), and this X2 subframe can centralized distribution in time domain (i.e. continuous print distribution in time domain, is mainly applicable to FDD LTE system) or distributed distribution (namely discrete in time domain distribution).
Concrete, 1 group of 8 port CSI-RS in each PRB, at frequency domain FDM multiplexing m group 8 port CSI-RS, and at time domain TDM multiplexing n group 8 port CSI-RS; Wherein X/8=m*n, multiplex mode can be centralized distribution or distributed distribution.K group 8 port CSI-RS in each PRB, at multiplexing m the 8 port CSI-RS of frequency domain FDM, and at multiplexing n the 8 port CSI-RS of time domain TDM; Wherein X/8=m*n*k, multiplex mode can be centralized distribution or distributed distribution.
If situation two designs each Physical Resource Block and sends many groups 8 port CSI-RS to configuring in (PRB Pair), then 3D-MIMO system also can internally send many groups 8 port CSI-RS with 1 Physical Resource Block.Based on this, when k3 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X3 CSI-RS group is distributed in respectively on frequency domain m3 Physical Resource Block on, and X4 CSI-RS group is distributed within m4 subframe respectively in time domain; Wherein, m3 Physical Resource Block is to distribution centralized on frequency domain (i.e. continuous print distribution on frequency domain) or distributed distribution (namely discrete on frequency domain distribution), m4 subframe centralized distribution in time domain (i.e. continuous print distribution in time domain) or distributed distribution (namely discrete in time domain distribution), X3*X4=X/8, m3 is for round up to (X3/8)/k3, m4 is for round up to (X4/8)/k3, and k3 is less than or equal to (X/8).
In a kind of preferred implementation of the embodiment of the present invention, for aforesaid way one, mode two and mode three, when being configured the CSI-RS pattern of a CSI-RS group in X/8 CSI-RS group, CSI-RS pattern full bandwidth transmission on frequency domain of a configuration CSI-RS group, and the CSI-RS pattern configuring a CSI-RS group in time domain with cycle T cSI-RS, sub-frame offset Δ cSI-RSperiodically send.
Concrete, in order to ensure that LTE-A R10 accesses 3D-MIMO system, 1 group of 8 port CSI-RS in X/8 group 8 port CSI-RS adopts the design of complete backwards compatibility, namely wherein 1 group of 8 port CSI-RS is configured according to 8 port CSI-RS pattern of the definition of LTE-A R10 specification completely, and on frequency domain, full bandwidth sends, and time domain is configured to a certain cycle T cSI-RS, a certain sub-frame offset Δ cSI-RSperiodically send, it can (being namely configured to multiple and different sub-frame offsets, such as 5ms, 10ms, 20ms, 40ms and the 80ms etc. of 5ms) as shown in table 1 according to the demand cycle of channel measurement or interferometry.The benefit of such design to ensure that the subscriber equipment of LTE-A R10 according to existing protocol scheme access 3D-MIMO system, and can not affect backwards compatibility.Further, other organizes 8 newly-increased port CSI-RS(such as more: X port CSI-RS splits into X/8 group, except the 1st group of 8 port CSI-RS, newly-increased (X/8)-1 group 8 port CSI-RS) multiplexing method of aforesaid way one or mode two or mode three all can be adopted to design accordingly and resource mapping.
The CSI-RS of table 1:LTE-A Rel-10 normalized definition sends cycle and sub-frame offset
In sum, in the embodiment of the present invention, carry out necessary enhancing and expansion by designing (8 port CSI-RS Pattern namely in lte-a system design) to existing CSI-RS Pattern, thus the CSI-RS of more logic ports in 3D-MIMO system (as 32 ports or 64 ports etc.) can be supported.
Embodiment two
The port configuration method of CSI-RS proposed based on above-described embodiment one is (by the CSI-RS of the port of the X in 3D-MIMO system, it is one group with the CSI-RS of 8 ports, be split as X/8 CSI-RS group, the compatible specific 8 port CSI-RS patterns of CSI-RS pattern of every CSI-RS group, frequency division multiplexing and/or time-multiplexed mode Resources allocation is adopted) between different CSI-RS groups, the embodiment of the present invention two provides a kind of method of CSI-RS transmission, by introducing grouping serial number 0 corresponding to each 8 port CSI-RS groupings of signaling message instruction, 1, ., (X/8)-1, and introduce frequency domain resource block gap (in units of PRB) with frequency domain resource block offset (in units of PRB) two parameter signallings or associate the parameter signalling comprising above-mentioned two information, support the detection that subscriber equipment configures 3D-MIMO multiport CSI-RS.
Based on this, in the embodiment of the present invention, network equipment sends the first indication signaling to subscriber equipment, carries the grouping serial number of CSI-RS group in the first indication signaling, and comprises the CSI-RS of 8 ports in CSI-RS group.Wherein, the grouping serial number of CSI-RS group is respectively 0,1 ...., (X/8)-1; Grouping serial number is that the 1st port in the corresponding X of a CSI-RS group port of 0 is to the 8th port, grouping serial number is that the 9th port in the corresponding X of a CSI-RS group port of 1 is to the 16th port, ..., grouping serial number is that (X-8) individual port in the corresponding X of a CSI-RS group port of (X/8)-1 is to X port.
Further, subscriber equipment receives the first indication signaling from network equipment, carries the grouping serial number of CSI-RS group, and comprise the CSI-RS of 8 ports in CSI-RS group in the first indication signaling; Subscriber equipment, after receiving the first indication signaling, utilizes the grouping serial number of the CSI-RS group of carrying in the first indication signaling to determine the grouping serial number of CSI-RS group and the mapping relations of port.In a kind of concrete implementation, subscriber equipment utilizes the grouping serial number of the CSI-RS group of carrying in the first indication signaling to determine the process of the grouping serial number of CSI-RS group and the mapping relations of port, specifically comprise: be respectively 0 at the grouping serial number of CSI-RS group, 1, ., (X/8)-1 time, subscriber equipment determination grouping serial number is that the 1st port in the corresponding X of a CSI-RS group port of 0 is to the 8th port, grouping serial number is that the 9th port in the corresponding X of a CSI-RS group port of 1 is to the 16th port, ..., by that analogy, (X-8) individual port in the corresponding X of the CSI-RS group port that grouping serial number is (X/8)-1 is to X port.
Under a kind of embody rule scene, the grouping serial number 0,1 that each 8 port CSI-RS groupings are corresponding ...., (X/8)-1, such as, split into X/8=4 group altogether for 32 port CSI-RS, at least adopts 2bit instruction; Split into X/8=8 group altogether for 64 port CSI-RS, at least adopt 3bit instruction.Subscriber equipment, after receiving the first indication signaling, obtains the port numbers mapping that this 8 port CSI-RS divides into groups corresponding; Wherein the 0th group of corresponding ports 0 ~ 7 maps, and the 1st group of corresponding ports 8 ~ 15 maps, by that analogy.
Due to each 8 ports CSI-RS grouping between multiplex mode may adopt frequency division multiplexing FDM, now the CSI-RS of possibility a certain group of 8 ports is not that full bandwidth carries out sending, in order to distinguish on frequency domain, each organizes the resource mapping of 8 port CSI-RS, in the embodiment of the present invention, introduce frequency domain resource block gap (in units of PRB, be equivalent to the frequency domain cycle) and frequency domain resource block offset (in units of PRB) two parameter signallings, or association comprises a parameter signalling of above-mentioned two information.
Based on this, in the embodiment of the present invention, when adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS group, network equipment sends the second indication signaling to subscriber equipment, carries frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in the second indication signaling; Or network equipment sends the 3rd indication signaling and the 4th indication signaling to subscriber equipment, carries the frequency domain resource block gap of CSI-RS group, carry the frequency domain resource block offset of CSI-RS group in the 4th indication signaling in the 3rd indication signaling.
Further, when adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS group, subscriber equipment receives the second indication signaling from network equipment, carries frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in this second indication signaling; Or subscriber equipment receives from the 3rd indication signaling of network equipment and the 4th indication signaling, carries the frequency domain resource block gap of CSI-RS group, carry the frequency domain resource block offset of CSI-RS group in the 4th indication signaling in the 3rd indication signaling.
For ensureing backwards compatibility, the CSI-RS sub-frame configuration I of correspondence of dividing into groups based on each 8 port CSI-RS cSI-RS, determine period of sub-frame and the sub-frame offset of time domain.Based on this, in the embodiment of the present invention, when adopting time-multiplexed mode Resources allocation between different CSI-RS group, network equipment sends the 5th indication signaling to subscriber equipment, carries chronon frame period and the chronon frame shifting amount of CSI-RS group in the 5th indication signaling; Or network equipment sends the 6th indication signaling and the 7th indication signaling to subscriber equipment, carries the chronon frame period of CSI-RS group, carry the chronon frame shifting amount of CSI-RS group in the 7th indication signaling in the 6th indication signaling.Further, when adopting time-multiplexed mode Resources allocation between different CSI-RS group, subscriber equipment receives the 5th indication signaling from network equipment, carries chronon frame period and the chronon frame shifting amount of CSI-RS group in the 5th indication signaling; Or subscriber equipment receives from the 6th indication signaling of network equipment and the 7th indication signaling, carries the chronon frame period of CSI-RS group, carry the chronon frame shifting amount of CSI-RS group in the 7th indication signaling in the 6th indication signaling.
What needs further illustrated is, in the embodiment of the present invention, when adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS group, network equipment sends the 8th indication signaling to subscriber equipment, carries the frequency domain resource block gap of CSI-RS group and frequency domain resource block offset, chronon frame period of CSI-RS group and chronon frame shifting amount in the 8th indication signaling; Or, network equipment sends the 9th indication signaling and the tenth indication signaling to subscriber equipment, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in 9th indication signaling, in the tenth indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, network equipment sends the 11 indication signaling, the 12 indication signaling, the 13 indication signaling, the 14 indication signaling to subscriber equipment, the frequency domain resource block gap of CSI-RS group is carried in 11 indication signaling, the frequency domain resource block offset of CSI-RS group is carried in 12 indication signaling, carry the chronon frame period of CSI-RS group in 13 indication signaling, in the 14 indication signaling, carry the chronon frame shifting amount of CSI-RS group.Further, when adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS group, subscriber equipment receives from the 8th indication signaling of network equipment, carries the frequency domain resource block gap of CSI-RS group and frequency domain resource block offset, chronon frame period of CSI-RS group and chronon frame shifting amount in the 8th indication signaling; Or, subscriber equipment receives from the 9th indication signaling of network equipment and the tenth indication signaling, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in 9th indication signaling, in the tenth indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, subscriber equipment receives the 11 indication signaling, the 12 indication signaling, the 13 indication signaling, the 14 indication signaling from network equipment, the frequency domain resource block gap of CSI-RS group is carried in 11 indication signaling, the frequency domain resource block offset of CSI-RS group is carried in 12 indication signaling, carry the chronon frame period of CSI-RS group in 13 indication signaling, in the 14 indication signaling, carry the chronon frame shifting amount of CSI-RS group.
When network side configuration CSI-RS logic port number is less than 8 (as 1 port, 2 ports, 4 ports), the resource of 8 port CSI-RS in Fig. 4 A and Fig. 4 B can be split into many groups 1 port, 2 ports, 4 ports CSI-RS to increase multiplexing dimension.According to LTE-A Rel-10 specification, network side configures the CSI-RS transmission (2bit indicates Number of CSIreference signals configured) of 1 port/8, port/4, port/2 port by high-level signaling, and configured by high-level signaling and choose which group CSI-RS available resources transmitting channel state information (5bit instruction CSI reference signal Configuration, and the original position of the time-frequency domain of these group CSI-RS available resources is jointly determined by Numberof CSI reference signals configured and CSI reference signal Configuration two parameters).Wherein, 1/2 port CSI-RS takies 2 RE, has 32 groups of possible configurations, and 4 port CSI-RS take 4 RE, totally 16 groups of possible configurations, and 8 port CSI-RS take 8 RE, totally 8 groups of possible configurations.
Based on this, in the embodiment of the present invention, network equipment sends the 15 indication signaling to subscriber equipment, carries CSI-RS pattern mapping parameters Number of CSI reference signalsconfigured in the 15 indication signaling; And/or network equipment sends the 16 indication signaling to subscriber equipment, carries CSI-RS pattern mapping parameters CSI reference signal Configuration in the 16 indication signaling.Subscriber equipment receives the 15 indication signaling from network equipment, carries CSI-RS pattern mapping parameters Number of CSI reference signals configured in the 15 indication signaling; And/or, receive the 16 indication signaling from network equipment, in the 16 indication signaling, carry CSI-RS pattern mapping parameters CSIreference signal Configuration; Subscriber equipment utilizes CSI-RS pattern mapping parameters Number ofCSI reference signals configured and/or CSI-RS pattern mapping parameters CSI reference signalConfiguration to determine the CSI-RS group time-frequency domain original position that RE maps in PRB.
In sum, in the embodiment of the present invention, carry out necessary enhancing and expansion by designing (8 port CSI-RS Pattern namely in lte-a system design) to existing CSI-RS Pattern, thus the CSI-RS of more logic ports in 3D-MIMO system can be supported.Further, while introducing new indication signaling and supporting the detection that subscriber equipment configure 3D-MIMO multiport CSI-RS, network side can be at utmost kept to configure the backwards compatibility of CSI-RS and subscriber equipment detection CSI-RS.
Embodiment three
Based on the inventive concept same with said method, the port configuration device of a kind of CSI-RS is additionally provided in the embodiment of the present invention, as shown in Figure 6, the port configuration device of described CSI-RS specifically comprises: processing module 11, for the CSI-RS by the port of the X in 3D-MIMO system, be one group with the CSI-RS of 8 ports, be split as X/8 CSI-RS group, the compatible specific 8 port CSI-RS patterns of CSI-RS pattern of every CSI-RS group; Wherein, X=8*n, n be more than or equal to 2 integer; Distribution module 12, for adopting frequency division multiplexing and/or time-multiplexed mode Resources allocation between different CSI-RS groups.
Described distribution module 12, specifically for X/8 CSI-RS group is distributed in respectively on frequency domain X/8 Physical Resource Block on; Wherein, a described X/8 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution; Or, when k1 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X/8 CSI-RS group is distributed in respectively on frequency domain m1 Physical Resource Block on; Wherein, a described m1 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, and described m1 is for round up to (X/8)/k1, and described k1 is less than or equal to (X/8).
Described distribution module 12, specifically for being distributed within X/8 subframe respectively by X/8 CSI-RS group in time domain; A described X/8 subframe is centralized distribution or distributed distribution in time domain; Or, when k2 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X/8 CSI-RS group is distributed in respectively in time domain within m2 subframe; A described m2 subframe is centralized distribution or distributed distribution in time domain, and described m2 is for round up to (X/8)/k2, and described k2 is less than or equal to (X/8).
Described distribution module 12, specifically for X1 CSI-RS group is distributed in respectively on frequency domain X1 Physical Resource Block on, and X2 CSI-RS group is distributed within X2 subframe respectively in time domain; Wherein, X1*X2=X/8, and a described X1 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, and a described X2 subframe centralized distribution or distributed distribution in time domain; Or, when k3 group 8 port CSI-RS internally can be sent at a Physical Resource Block, described distribution module 12, specifically for X3 CSI-RS group is distributed in respectively on frequency domain m3 Physical Resource Block on, and X4 CSI-RS group is distributed within m4 subframe respectively in time domain; Wherein, a described m3 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, a described m4 subframe is centralized distribution or distributed distribution in time domain, X3*X4=X/8, described m3 is for round up to (X3/8)/k3, described m4 is for round up to (X4/8)/k3, and described k3 is less than or equal to (X/8).
Described distribution module 12, be further used for when being configured the CSI-RS pattern of a CSI-RS group in X/8 CSI-RS group, the CSI-RS pattern configuring described CSI-RS group full bandwidth on frequency domain sends, and the CSI-RS pattern configuring a described CSI-RS group in time domain with cycle T cSI-RS, sub-frame offset Δ cSI-RSperiodically send.
Described specific 8 port CSI-RS patterns, are specially: one group of 8 port CSI-RS pattern in 8 group of 8 port CSI-RS pattern of the R10 stage definitions of senior Long Term Evolution lte-a system.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can be separated deployment.Above-mentioned module can merge into a module, also can split into multiple submodule further.
Embodiment four
Based on the inventive concept same with said method, additionally provide in the embodiment of the present invention and be a kind ofly applied to equipment shown in embodiment three and carry out the network equipment of channel state information reference signals CSI-RS transmission, as shown in Figure 7, described network equipment comprises: sending module 21, for sending the first indication signaling to subscriber equipment, carry the grouping serial number of CSI-RS group in described first indication signaling, and comprise the CSI-RS of 8 ports in described CSI-RS group; And/or, when adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS group, send the second indication signaling to subscriber equipment, in described second indication signaling, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group; Or, send the 3rd indication signaling and the 4th indication signaling to subscriber equipment, carry the frequency domain resource block gap of CSI-RS group in described 3rd indication signaling, in described 4th indication signaling, carry the frequency domain resource block offset of CSI-RS group.
Described sending module 21, time also for adopting time-multiplexed mode Resources allocation between different CSI-RS group, send the 5th indication signaling to described subscriber equipment, in described 5th indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, send the 6th indication signaling and the 7th indication signaling to described subscriber equipment, carry the chronon frame period of CSI-RS group in described 6th indication signaling, in described 7th indication signaling, carry the chronon frame shifting amount of CSI-RS group; When adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS group, send the 8th indication signaling to described subscriber equipment, in described 8th indication signaling, carry the frequency domain resource block gap of CSI-RS group and frequency domain resource block offset, chronon frame period of CSI-RS group and chronon frame shifting amount; Or, the 9th indication signaling and the tenth indication signaling is sent to described subscriber equipment, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described 9th indication signaling, in described tenth indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, the 11 indication signaling, the 12 indication signaling, the 13 indication signaling, the 14 indication signaling is sent to described subscriber equipment, the frequency domain resource block gap of CSI-RS group is carried in described 11 indication signaling, the frequency domain resource block offset of CSI-RS group is carried in described 12 indication signaling, carry the chronon frame period of CSI-RS group in described 13 indication signaling, in described 14 indication signaling, carry the chronon frame shifting amount of CSI-RS group.
In the embodiment of the present invention, the grouping serial number of described CSI-RS group is respectively 0,1 ...., (X/8)-1; Wherein, described grouping serial number is that the 1st port in the corresponding X of a CSI-RS group port of 0 is to the 8th port, described grouping serial number is that the 9th port in the corresponding X of a CSI-RS group port of 1 is to the 16th port, ..., described grouping serial number is that (X-8) individual port in the corresponding X of a CSI-RS group port of (X/8)-1 is to X port.
Described sending module 21, also for sending the 15 indication signaling to described subscriber equipment, carries CSI-RS pattern mapping parameters Number of CSI reference signalsconfigured in described 15 indication signaling; And/or, send the 16 indication signaling to described subscriber equipment, in described 16 indication signaling, carry CSI-RS pattern mapping parameters CSI reference signal Configuration.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can be separated deployment.Above-mentioned module can merge into a module, also can split into multiple submodule further.
Embodiment five
Based on the inventive concept same with said method, additionally provide in the embodiment of the present invention and be a kind ofly applied to equipment shown in embodiment three and carry out the subscriber equipment of CSI-RS transmission, as shown in Figure 8, described subscriber equipment specifically comprises: receiver module 31, for receiving the first indication signaling from network equipment, carry the grouping serial number of CSI-RS group in described first indication signaling, and comprise the CSI-RS of 8 ports in described CSI-RS group; And/or, when adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS group, receive the second indication signaling from network equipment, in described second indication signaling, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group; Or, receive the 3rd indication signaling from network equipment and the 4th indication signaling, in described 3rd indication signaling, carry the frequency domain resource block gap of CSI-RS group, in described 4th indication signaling, carry the frequency domain resource block offset of CSI-RS group; Determination module 32, for after receiving the first indication signaling, utilizes the grouping serial number of the CSI-RS group of carrying in described first indication signaling to determine the described grouping serial number of CSI-RS group and the mapping relations of port.
Described receiver module 31, time also for adopting time-multiplexed mode Resources allocation between different CSI-RS group, receive the 5th indication signaling from network equipment, in described 5th indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, receive the 6th indication signaling from network equipment and the 7th indication signaling, in described 6th indication signaling, carry the chronon frame period of CSI-RS group, in described 7th indication signaling, carry the chronon frame shifting amount of CSI-RS group; When adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS group, receive from the 8th indication signaling of network equipment, in described 8th indication signaling, carry the frequency domain resource block gap of CSI-RS group and frequency domain resource block offset, chronon frame period of CSI-RS group and chronon frame shifting amount; Or, receive the 9th indication signaling from network equipment and the tenth indication signaling, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described 9th indication signaling, in described tenth indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, receive the 11 indication signaling, the 12 indication signaling, the 13 indication signaling, the 14 indication signaling from network equipment, the frequency domain resource block gap of CSI-RS group is carried in described 11 indication signaling, the frequency domain resource block offset of CSI-RS group is carried in described 12 indication signaling, carry the chronon frame period of CSI-RS group in described 13 indication signaling, in described 14 indication signaling, carry the chronon frame shifting amount of CSI-RS group.
Described determination module 32, specifically for being respectively 0 at the grouping serial number of described CSI-RS group, 1,., (X/8)-1 time, determine described grouping serial number be the 1st port in the corresponding X of a CSI-RS group port of 0 to the 8th port, determine that described grouping serial number is that the 9th port in the corresponding X of a CSI-RS group port of 1 is to the 16th port, ..., determine that described grouping serial number is that (X-8) individual port in the corresponding X of a CSI-RS group port of (X/8)-1 is to X port.
Described receiver module 31, also for receiving the 15 indication signaling from network equipment, carries CSI-RS pattern mapping parameters Number of CSI reference signalsconfigured in described 15 indication signaling; And/or, receive the 16 indication signaling from described network equipment, in described 16 indication signaling, carry CSI-RS pattern mapping parameters CSI reference signal Configuration; Described determination module 32, also for utilizing CSI-RS pattern mapping parameters Number of CSI reference signalsconfigured and/or CSI-RS pattern mapping parameters CSI reference signal Configuration to determine the CSI-RS group time-frequency domain original position that resource particle RE maps in Physical Resource Block PRB.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can be separated deployment.Above-mentioned module can merge into a module, also can split into multiple submodule further.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can carry out being distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices being different from the present embodiment.The module of above-described embodiment can merge into a module, also can split into multiple submodule further.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Be only several specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.

Claims (28)

1. a port configuration method of channel state information reference signals CSI-RS, is characterized in that, said method comprising the steps of:
By the CSI-RS of X port in three-dimensional multiple-input and multiple-output 3D-MIMO system, be one group with the CSI-RS of 8 ports, be split as X/8 CSI-RS group, the compatible specific 8 port CSI-RS patterns of CSI-RS pattern of every CSI-RS group; Wherein, X=8*n, n be more than or equal to 2 integer;
Frequency division multiplexing and/or time-multiplexed mode Resources allocation is adopted between different CSI-RS groups.
2. the method for claim 1, is characterized in that, the described process adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS groups, specifically comprises:
X/8 CSI-RS group is distributed in respectively on frequency domain X/8 Physical Resource Block on; Wherein, a described X/8 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution; Or,
When k1 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X/8 CSI-RS group is distributed in respectively on frequency domain m1 Physical Resource Block on; Wherein, a described m1 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, and described m1 is for round up to (X/8)/k1, and described k1 is less than or equal to (X/8).
3. the method for claim 1, is characterized in that, the described process adopting time-multiplexed mode Resources allocation between different CSI-RS groups, specifically comprises:
X/8 CSI-RS group is distributed in respectively in time domain within X/8 subframe; Wherein, a described X/8 subframe centralized distribution or distributed distribution in time domain; Or,
When k2 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X/8 CSI-RS group is distributed in respectively in time domain within m2 subframe; Wherein, a described m2 subframe is centralized distribution or distributed distribution in time domain, and described m2 is for round up to (X/8)/k2, and described k2 is less than or equal to (X/8).
4. the method for claim 1, is characterized in that, the described process adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS groups, specifically comprises:
X1 CSI-RS group is distributed in respectively on frequency domain X1 Physical Resource Block on, and X2 CSI-RS group is distributed within X2 subframe respectively in time domain; Wherein, X1*X2=X/8, and a described X1 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, and a described X2 subframe centralized distribution or distributed distribution in time domain; Or,
When k3 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X3 CSI-RS group is distributed in respectively on frequency domain m3 Physical Resource Block on, and X4 CSI-RS group is distributed within m4 subframe respectively in time domain; Wherein, a described m3 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, a described m4 subframe is centralized distribution or distributed distribution in time domain, X3*X4=X/8, described m3 is for round up to (X3/8)/k3, described m4 is for round up to (X4/8)/k3, and described k3 is less than or equal to (X/8).
5. the method as described in any one of claim 2-4, is characterized in that, described method also comprises:
When being configured the CSI-RS pattern of a CSI-RS group in X/8 CSI-RS group, the CSI-RS pattern configuring described CSI-RS group full bandwidth on frequency domain sends, and the CSI-RS pattern configuring a described CSI-RS group in time domain with cycle T cSI-RS, sub-frame offset Δ cSI-RSperiodically send.
6. the method as described in any one of claim 1-4, is characterized in that, described specific 8 port CSI-RS patterns, are specially: one group of 8 port CSI-RS pattern in 8 group of 8 port CSI-RS pattern of the R10 stage definitions of senior Long Term Evolution lte-a system.
7. the method be applied to as described in any one of claim 1 to 6 carries out a method for channel state information reference signals CSI-RS transmission, it is characterized in that, said method comprising the steps of:
Network equipment sends the first indication signaling to subscriber equipment, carries the grouping serial number of CSI-RS group in described first indication signaling, and comprises the CSI-RS of 8 ports in described CSI-RS group; And/or,
When adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS group, network equipment sends the second indication signaling to subscriber equipment, carries frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described second indication signaling; Or network equipment sends the 3rd indication signaling and the 4th indication signaling to subscriber equipment, carries the frequency domain resource block gap of CSI-RS group, carry the frequency domain resource block offset of CSI-RS group in described 4th indication signaling in described 3rd indication signaling.
8. method as claimed in claim 7, it is characterized in that, described method also comprises:
When adopting time-multiplexed mode Resources allocation between different CSI-RS group, described network equipment sends the 5th indication signaling to described subscriber equipment, carries chronon frame period and the chronon frame shifting amount of CSI-RS group in described 5th indication signaling; Or described network equipment sends the 6th indication signaling and the 7th indication signaling to described subscriber equipment, carries the chronon frame period of CSI-RS group, carry the chronon frame shifting amount of CSI-RS group in described 7th indication signaling in described 6th indication signaling;
When adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS group, described network equipment sends the 8th indication signaling to described subscriber equipment, carries the frequency domain resource block gap of CSI-RS group and frequency domain resource block offset, chronon frame period of CSI-RS group and chronon frame shifting amount in described 8th indication signaling; Or, described network equipment sends the 9th indication signaling and the tenth indication signaling to described subscriber equipment, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described 9th indication signaling, in described tenth indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, described network equipment sends the 11 indication signaling, the 12 indication signaling, the 13 indication signaling, the 14 indication signaling to described subscriber equipment, the frequency domain resource block gap of CSI-RS group is carried in described 11 indication signaling, the frequency domain resource block offset of CSI-RS group is carried in described 12 indication signaling, carry the chronon frame period of CSI-RS group in described 13 indication signaling, in described 14 indication signaling, carry the chronon frame shifting amount of CSI-RS group.
9. method as claimed in claim 7, it is characterized in that, the grouping serial number of described CSI-RS group is respectively 0,1 ...., (X/8)-1; Wherein, described grouping serial number is that the 1st port in the corresponding X of a CSI-RS group port of 0 is to the 8th port, described grouping serial number is that the 9th port in the corresponding X of a CSI-RS group port of 1 is to the 16th port, ..., described grouping serial number is that (X-8) individual port in the corresponding X of a CSI-RS group port of (X/8)-1 is to X port.
10. method as claimed in claim 7, it is characterized in that, described method also comprises:
Described network equipment sends the 15 indication signaling to described subscriber equipment, carries CSI-RS pattern mapping parameters Number of CSI reference signals configured in described 15 indication signaling; And/or described network equipment sends the 16 indication signaling to described subscriber equipment, carries CSI-RS pattern mapping parameters CSI reference signal Configuration in described 16 indication signaling.
11. 1 kinds of methods be applied to as described in any one of claim 1 to 6 carry out the method for channel state information reference signals CSI-RS transmission, it is characterized in that, said method comprising the steps of:
Subscriber equipment receives the first indication signaling from network equipment, carries the grouping serial number of CSI-RS group, and comprise the CSI-RS of 8 ports in described CSI-RS group in described first indication signaling; Described subscriber equipment, after receiving the first indication signaling, utilizes the grouping serial number of the CSI-RS group of carrying in described first indication signaling to determine the described grouping serial number of CSI-RS group and the mapping relations of port; And/or,
When adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS group, subscriber equipment receives the second indication signaling from network equipment, carries frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described second indication signaling; Or subscriber equipment receives from the 3rd indication signaling of network equipment and the 4th indication signaling, carries the frequency domain resource block gap of CSI-RS group, carry the frequency domain resource block offset of CSI-RS group in described 4th indication signaling in described 3rd indication signaling.
12. methods as claimed in claim 11, it is characterized in that, described method also comprises:
When adopting time-multiplexed mode Resources allocation between different CSI-RS group, described subscriber equipment receives the 5th indication signaling from described network equipment, carries chronon frame period and the chronon frame shifting amount of CSI-RS group in described 5th indication signaling; Or, described subscriber equipment receives the 6th indication signaling from described network equipment and the 7th indication signaling, carry the chronon frame period of CSI-RS group in described 6th indication signaling, in described 7th indication signaling, carry the chronon frame shifting amount of CSI-RS group;
When adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS group, described subscriber equipment receives the 8th indication signaling from described network equipment, carries the frequency domain resource block gap of CSI-RS group and frequency domain resource block offset, chronon frame period of CSI-RS group and chronon frame shifting amount in described 8th indication signaling; Or, described subscriber equipment receives the 9th indication signaling from described network equipment and the tenth indication signaling, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described 9th indication signaling, in described tenth indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, described subscriber equipment receives the 11 indication signaling, the 12 indication signaling, the 13 indication signaling, the 14 indication signaling from described network equipment, the frequency domain resource block gap of CSI-RS group is carried in described 11 indication signaling, the frequency domain resource block offset of CSI-RS group is carried in described 12 indication signaling, carry the chronon frame period of CSI-RS group in described 13 indication signaling, in described 14 indication signaling, carry the chronon frame shifting amount of CSI-RS group.
13. methods as claimed in claim 11, it is characterized in that, described subscriber equipment utilizes the grouping serial number of the CSI-RS group of carrying in described first indication signaling to determine the described grouping serial number of CSI-RS group and the mapping relations of port, specifically comprise: be respectively 0 at the grouping serial number of described CSI-RS group, 1, ., (X/8)-1 time, described subscriber equipment determines that described grouping serial number is that the 1st port in the corresponding X of a CSI-RS group port of 0 is to the 8th port, described grouping serial number is that the 9th port in the corresponding X of a CSI-RS group port of 1 is to the 16th port, ..., described grouping serial number is that (X-8) individual port in the corresponding X of a CSI-RS group port of (X/8)-1 is to X port.
14. methods as claimed in claim 11, it is characterized in that, described method also comprises:
Described subscriber equipment receives the 15 indication signaling from network equipment, carries CSI-RS pattern mapping parameters Number of CSI reference signals configured in described 15 indication signaling; And/or described subscriber equipment receives the 16 indication signaling from described network equipment, carries CSI-RS pattern mapping parameters CSI reference signal Configuration in described 16 indication signaling;
Described subscriber equipment utilizes CSI-RS pattern mapping parameters Number of CSI reference signalsconfigured and/or CSI-RS pattern mapping parameters CSI reference signal Configuration to determine the CSI-RS group time-frequency domain original position that resource particle RE maps in Physical Resource Block PRB.
The port configuration device of 15. 1 kinds of channel state information reference signals CSI-RS, is characterized in that, the port configuration device of described CSI-RS specifically comprises:
Processing module, for the CSI-RS by X port in three-dimensional multiple-input and multiple-output 3D-MIMO system, is one group with the CSI-RS of 8 ports, is split as X/8 CSI-RS group, the compatible specific 8 port CSI-RS patterns of CSI-RS pattern of every CSI-RS group; Wherein, X=8*n, n be more than or equal to 2 integer;
Distribution module, for adopting frequency division multiplexing and/or time-multiplexed mode Resources allocation between different CSI-RS groups.
16. equipment as claimed in claim 15, is characterized in that,
Described distribution module, specifically for X/8 CSI-RS group is distributed in respectively on frequency domain X/8 Physical Resource Block on; Wherein, a described X/8 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution; Or, when k1 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X/8 CSI-RS group is distributed in respectively on frequency domain m1 Physical Resource Block on; Wherein, a described m1 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, and described m1 is for round up to (X/8)/k1, and described k1 is less than or equal to (X/8).
17. equipment as claimed in claim 15, is characterized in that,
Described distribution module, specifically for being distributed within X/8 subframe respectively by X/8 CSI-RS group in time domain; A described X/8 subframe is centralized distribution or distributed distribution in time domain; Or, when k2 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X/8 CSI-RS group is distributed in respectively in time domain within m2 subframe; A described m2 subframe is centralized distribution or distributed distribution in time domain, and described m2 is for round up to (X/8)/k2, and described k2 is less than or equal to (X/8).
18. equipment as claimed in claim 15, is characterized in that,
Described distribution module, specifically for X1 CSI-RS group is distributed in respectively on frequency domain X1 Physical Resource Block on, and X2 CSI-RS group is distributed within X2 subframe respectively in time domain; Wherein, X1*X2=X/8, and a described X1 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, and a described X2 subframe centralized distribution or distributed distribution in time domain; Or, when k3 group 8 port CSI-RS internally can be sent at a Physical Resource Block, X3 CSI-RS group is distributed in respectively on frequency domain m3 Physical Resource Block on, and X4 CSI-RS group is distributed within m4 subframe respectively in time domain; Wherein, a described m3 Physical Resource Block is to distribution centralized on frequency domain or distributed distribution, a described m4 subframe is centralized distribution or distributed distribution in time domain, X3*X4=X/8, described m3 is for round up to (X3/8)/k3, described m4 is for round up to (X4/8)/k3, and described k3 is less than or equal to (X/8).
19. equipment as described in any one of claim 16-18, is characterized in that,
Described distribution module, be further used for when being configured the CSI-RS pattern of a CSI-RS group in X/8 CSI-RS group, the CSI-RS pattern configuring described CSI-RS group full bandwidth on frequency domain sends, and the CSI-RS pattern configuring a described CSI-RS group in time domain with cycle T cSI-RS, sub-frame offset Δ cSI-RSperiodically send.
20. equipment as described in any one of claim 15-18, it is characterized in that, described specific 8 port CSI-RS patterns, are specially: one group of 8 port CSI-RS pattern in 8 group of 8 port CSI-RS pattern of the R10 stage definitions of senior Long Term Evolution lte-a system.
21. 1 kinds of equipment be applied to as described in any one of claim 15 to 20 carry out the network equipment of channel state information reference signals CSI-RS transmission, it is characterized in that, described network equipment comprises:
Sending module, for sending the first indication signaling to subscriber equipment, carries the grouping serial number of CSI-RS group, and comprises the CSI-RS of 8 ports in described CSI-RS group in described first indication signaling; And/or, when adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS group, described sending module, for sending the second indication signaling to subscriber equipment, carries frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described second indication signaling; Or, described sending module, for sending the 3rd indication signaling and the 4th indication signaling to subscriber equipment, carrying the frequency domain resource block gap of CSI-RS group in described 3rd indication signaling, in described 4th indication signaling, carrying the frequency domain resource block offset of CSI-RS group.
22. network equipments as claimed in claim 21, is characterized in that,
Described sending module, time also for adopting time-multiplexed mode Resources allocation between different CSI-RS group, sending the 5th indication signaling to described subscriber equipment, carrying chronon frame period and the chronon frame shifting amount of CSI-RS group in described 5th indication signaling; Or, send the 6th indication signaling and the 7th indication signaling to described subscriber equipment, carry the chronon frame period of CSI-RS group in described 6th indication signaling, in described 7th indication signaling, carry the chronon frame shifting amount of CSI-RS group; When adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS group, send the 8th indication signaling to described subscriber equipment, in described 8th indication signaling, carry the frequency domain resource block gap of CSI-RS group and frequency domain resource block offset, chronon frame period of CSI-RS group and chronon frame shifting amount; Or, the 9th indication signaling and the tenth indication signaling is sent to described subscriber equipment, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described 9th indication signaling, in described tenth indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, the 11 indication signaling, the 12 indication signaling, the 13 indication signaling, the 14 indication signaling is sent to described subscriber equipment, the frequency domain resource block gap of CSI-RS group is carried in described 11 indication signaling, the frequency domain resource block offset of CSI-RS group is carried in described 12 indication signaling, carry the chronon frame period of CSI-RS group in described 13 indication signaling, in described 14 indication signaling, carry the chronon frame shifting amount of CSI-RS group.
23. network equipments as claimed in claim 21, it is characterized in that, the grouping serial number of described CSI-RS group is respectively 0,1 ...., (X/8)-1; Wherein, described grouping serial number is that the 1st port in the corresponding X of a CSI-RS group port of 0 is to the 8th port, described grouping serial number is that the 9th port in the corresponding X of a CSI-RS group port of 1 is to the 16th port, ..., described grouping serial number is that (X-8) individual port in the corresponding X of a CSI-RS group port of (X/8)-1 is to X port.
24. network equipments as claimed in claim 21, is characterized in that,
Described sending module, also for sending the 15 indication signaling to described subscriber equipment, carries CSI-RS pattern mapping parameters Number of CSI reference signalsconfigured in described 15 indication signaling; And/or, send the 16 indication signaling to described subscriber equipment, in described 16 indication signaling, carry CSI-RS pattern mapping parameters CSI reference signal Configuration.
25. 1 kinds of equipment be applied to as described in any one of claim 15 to 20 carry out the subscriber equipment of channel state information reference signals CSI-RS transmission, it is characterized in that, described subscriber equipment specifically comprises:
Receiver module, for receiving the first indication signaling from network equipment, carries the grouping serial number of CSI-RS group, and comprises the CSI-RS of 8 ports in described CSI-RS group in described first indication signaling; And/or, when adopting the mode Resources allocation of frequency division multiplexing between different CSI-RS group, receive the second indication signaling from network equipment, in described second indication signaling, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group; Or, receive the 3rd indication signaling from network equipment and the 4th indication signaling, in described 3rd indication signaling, carry the frequency domain resource block gap of CSI-RS group, in described 4th indication signaling, carry the frequency domain resource block offset of CSI-RS group;
Determination module, for after receiving the first indication signaling, utilizes the grouping serial number of the CSI-RS group of carrying in described first indication signaling to determine the described grouping serial number of CSI-RS group and the mapping relations of port.
26. subscriber equipmenies as claimed in claim 25, is characterized in that,
Described receiver module, time also for adopting time-multiplexed mode Resources allocation between different CSI-RS group, receive the 5th indication signaling from network equipment, in described 5th indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, receive the 6th indication signaling from network equipment and the 7th indication signaling, in described 6th indication signaling, carry the chronon frame period of CSI-RS group, in described 7th indication signaling, carry the chronon frame shifting amount of CSI-RS group; When adopting frequency division multiplexing and time-multiplexed mode Resources allocation between different CSI-RS group, receive from the 8th indication signaling of network equipment, in described 8th indication signaling, carry the frequency domain resource block gap of CSI-RS group and frequency domain resource block offset, chronon frame period of CSI-RS group and chronon frame shifting amount; Or, receive the 9th indication signaling from network equipment and the tenth indication signaling, carry frequency domain resource block gap and the frequency domain resource block offset of CSI-RS group in described 9th indication signaling, in described tenth indication signaling, carry chronon frame period and the chronon frame shifting amount of CSI-RS group; Or, receive the 11 indication signaling, the 12 indication signaling, the 13 indication signaling, the 14 indication signaling from network equipment, the frequency domain resource block gap of CSI-RS group is carried in described 11 indication signaling, the frequency domain resource block offset of CSI-RS group is carried in described 12 indication signaling, carry the chronon frame period of CSI-RS group in described 13 indication signaling, in described 14 indication signaling, carry the chronon frame shifting amount of CSI-RS group.
27. subscriber equipmenies as claimed in claim 25, is characterized in that,
Described determination module, specifically for being respectively 0 at the grouping serial number of described CSI-RS group, 1,., (X/8)-1 time, determine described grouping serial number be the 1st port in the corresponding X of a CSI-RS group port of 0 to the 8th port, determine that described grouping serial number is that the 9th port in the corresponding X of a CSI-RS group port of 1 is to the 16th port, ..., determine that described grouping serial number is that (X-8) individual port in the corresponding X of a CSI-RS group port of (X/8)-1 is to X port.
28. subscriber equipmenies as claimed in claim 25, is characterized in that,
Described receiver module, also for receiving the 15 indication signaling from network equipment, carries CSI-RS pattern mapping parameters Number of CSI reference signalsconfigured in described 15 indication signaling; And/or, receive the 16 indication signaling from described network equipment, in described 16 indication signaling, carry CSI-RS pattern mapping parameters CSI reference signal Configuration;
Described determination module, also for utilizing CSI-RS pattern mapping parameters Number of CSI referencesignals configured and/or CSI-RS pattern mapping parameters CSI reference signal Configuration to determine the CSI-RS group time-frequency domain original position that resource particle RE maps in Physical Resource Block PRB.
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