CN101931957B - Method for controlling interference of downstream measurement reference signal and equipment thereof - Google Patents
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Abstract
The invention discloses a method for controlling the interference of a downstream measurement reference signal and equipment thereof, which are applied to a high-level long-term evolution LTE-A system. The method comprises the following steps of: a base station configures the sequence, and/or the frequency domain resource, and/or the time domain resource to a downstream measurement reference signal; the base station transmits configuration information of the downstream measurement reference signal to a user terminal; the base station transmits the downstream measurement reference signal to the user terminal respectively through the sequence, and/or the frequency domain resource, and/or the time domain resource; and the user terminal receives the downstream measurement reference signal transmitted by the base station according to the configuration information of the downstream measurement reference signal. With the mode, the invention effectively prevents the downstream measurement reference signals of each block from being interfered on the basis that the downstream measurement reference signal is smoothly transmitted and the system performance is guaranteed.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of method and apparatus of controlling the downstream measurement reference signal interference.
Background technology
In wireless communication system, need in the transmission data, pilot signal be followed transmission, be used for channel estimating and channel measurement.Pilot technique can effectively improve success rate for switching between the different carrier frequency.In the network optimization, use more.
Pilot signal is the Direct Sequence Spread Spectrum Signal that the base station is launched non-modulated continuously, make subscriber equipment (User Equipment, UE) can obtain the forward direction CDMA channel time limit, the correlation demodulation phase reference is provided, and for each base station provides signal strength signal intensity relatively, UE determines when whereby and switches.
(Multiple-Input Multiple-Out-put, MIMO) technology is generally used for IEEE 802.11n to multiple-input and multiple-output, but also can be used for other 802.11 technology.It is various that MIMO is known as the space sometimes, because it uses multiple spatial channel to transmit and receives data.(Access Point could dispose MIMO when AP) supporting MIMO to have only website (mobile device) or access point.
The advantage of MIMO is can increase wireless range and improve performance.The 802.11n website that connects 802.11g access point until old can be connected to farther distance with higher speed.Under the MIMO environment, when signal of communication is reflected, can produce many parts of signals.Every part of signal all is a spatial flow.(single-Input single-Out-put, SISO) etc. technology once can only send or receive a spatial flow to use the single output of single input.MIMO allows a plurality of antennas to send simultaneously and receives a plurality of spatial flows.It allows antenna to transmit simultaneously and receive.
Along with the application of MIMO technology in wireless communication system, in order to utilize spatial selectivity, need further distinguish the different spaces channel, like this, the pilot tone that needs to send a plurality of quadratures is discerned each space channel.
Along with development of technology, communication equipment can adopt increasing antenna to satisfy user and professional needs, and the pilot tone that therefore needs is also more and more.(Long Term Evolution, LTE) in the system, the pilot tone of different antennae port all is the configuration of full range band, and each subframe all needs pilot signal transmitted, thereby finishes channel estimating and two functions of channel measurement at Long Term Evolution.
(Long Term Evolution Advanced, LTE-A) in the system, the antenna port of descending support increases to 8 at senior Long Term Evolution.Excessive in order to prevent pilot-frequency expense, the SI stage has been divided into descending pilot frequency measurement pilot frequency and demodulation pilot frequency.Wherein, demodulation pilot frequency is a user commissioner's office, based on the structure of stream; Measurement pilot frequency is a sub-district commissioner's office, based on the structure of antenna port, and sparse distribution on the time-frequency domain, i.e. downstream measurement reference signal.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
Because being on the increase of pilot signal, the signal of minizone are disturbed and also can constantly be increased, influenced the generation effect and the normal communication service of reference signal, reduced user experience, therefore, need a kind of technical scheme that reduces the minizone reference signal-to-interference.
Summary of the invention
The invention provides a kind of method and apparatus that downstream measurement reference signal disturbs of controlling, by different sequences, or frequency domain resource, or time-domain resource sends downstream measurement reference signal to user terminal, ensure data transmission quality, reduce the interference of minizone measuring reference signals.
For achieving the above object, one aspect of the present invention provides a kind of method that downstream measurement reference signal disturbs of controlling, and is applied in the senior Long Term Evolution LTE-A system, and described method comprises:
Base station configuration sequence, and/or frequency domain resource, and/or time-domain resource is given downstream measurement reference signal;
Described base station sends the configuration information of downstream measurement reference signal to user terminal;
Described base station is respectively by sequence, and/or frequency domain resource, and/or time-domain resource sends downstream measurement reference signal to described user terminal;
Described user terminal receives the downstream measurement reference signal that described base station sends according to the configuration information of described downstream measurement reference signal;
Wherein, when using the COMP pattern in the described LTE-A system,
When described base station sends described downstream measurement reference signal by different frequency domain resource or time-domain resource to user terminal respectively, and the downstream measurement reference signal that has at least two sub-districts and data-signal be mutually during mutual interference, to the punctured processing of punching of the data-signal of described at least two sub-districts; Or,
When described base station respectively by different frequency domain resource or time-domain resource when user terminal sends described downstream measurement reference signal, described base station is according to the downstream measurement reference signal configuration information of relevant a plurality of sub-districts, and resource reservation is carried out in the time-frequency position to measuring reference signals when data map.
Preferably, the sequence of described base station configuration, and/or frequency domain resource, and/or time-domain resource is different with neighbor cell.
Preferably, described base station configuration sequence, and/or frequency domain resource, and/or time-domain resource specifically comprises to downstream measurement reference signal:
When the suitable sequence resource of described base station configuration was given downstream measurement reference signal, described sequence generated according to the cell ID cell ID of described base station configuration; And/or,
When the suitable frequency domain resource of described base station configuration was given downstream measurement reference signal, the start position of described frequency domain resource generated according to the cell ID of described base station configuration; And/or,
When the suitable time-domain resource of described base station configuration was given downstream measurement reference signal, the start position of described time-domain resource generated according to the cell ID of described base station configuration.
Preferably, the configuration information of described downstream measurement reference signal is adjustable.
Preferably, described base station sends the configuration information of described downstream measurement reference signal to user terminal, also comprises:
When using multipoint cooperative transmission COMP pattern in the described LTE-A system, described user terminal receives and preserves the configuration information of the downstream measurement reference signal of all related cell.
On the other hand, the present invention also provides a kind of base station.Be applied to comprise in the senior Long Term Evolution LTE-A system, comprise:
Generation module is used to generate the configuration information of described downstream measurement reference signal;
Configuration module is used for the configuration information of the described downstream measurement reference signal that generates according to described generation module, is described base station selected sequence, and/or frequency domain resource, and/or time-domain resource;
Sending module, the configuration information that is used for described downstream measurement reference signal that described configuration module is generated sends to user terminal, also is used for by the selected sequence of described configuration module, and/or frequency domain resource, and/or time-domain resource, send described downstream measurement reference signal to user terminal;
Wherein, when using the COMP pattern in the described LTE-A system, described base station also comprises:
Data punching module, be used for sending described downstream measurement reference signal by different frequency domain resource or time-domain resource to user terminal respectively when described base station, and the downstream measurement reference signal that has at least two sub-districts and data-signal be mutually during mutual interference, and the data-signal of described at least two sub-districts is carried out the punctured processing; Or,
The resource reservation module, be used for sending described downstream measurement reference signal by different frequency domain resource or time-domain resource to user terminal respectively when described base station, described base station is according to the downstream measurement reference signal configuration information of relevant a plurality of sub-districts, and resource reservation is carried out in the time-frequency position to measuring reference signals when data map.
Preferably, the sequence that described configuration module disposed, and/or frequency domain resource, and/or time-domain resource is different with neighbor cell.
Preferably, described generation module also is used for the configuration information of the described downstream measurement reference signal of random modification.
Preferably, described configuration module is used for the configuration information of the described downstream measurement reference signal that generates according to described generation module, selects sequence, and/or frequency domain resource, and/or time-domain resource, is specially:
Cell ID cell ID according to described base station configuration generates the pairing sequence in described base station; And/or,
Generate the start position of the pairing frequency domain resource in described base station according to the cell ID cell ID of described base station configuration; And/or,
Generate the start position of the pairing time-domain resource in described base station according to the cell ID cell ID of described base station configuration.
Compared with prior art, the present invention has the following advantages:
By the present invention, can realize the flexible configuration of downstream measurement reference signal, by different sequences, or frequency domain resource, or time-domain resource sends downstream measurement reference signal to user terminal, guarantee data transmission quality, the interference of reduction minizone measuring reference signals.
Description of drawings
A kind of schematic flow sheet of controlling the method for downstream measurement reference signal interference of Fig. 1 for proposing for the embodiment of the invention;
A kind of schematic flow sheet of controlling the method for downstream measurement reference signal interference of Fig. 2 for proposing for the embodiment of the invention;
A kind of schematic flow sheet of controlling the method for downstream measurement reference signal interference of Fig. 3 for proposing for the embodiment of the invention;
Fig. 4 is the schematic diagram of a kind of frequency division resource of embodiment of the invention proposition;
A kind of schematic flow sheet of controlling the method for downstream measurement reference signal interference of Fig. 5 for proposing for the embodiment of the invention;
Fig. 6 is the schematic diagram of a kind of time-division resource of embodiment of the invention proposition;
Fig. 7 is the structural representation of a kind of base station of embodiment of the invention proposition.
Embodiment
As stated in the Background Art, under the ever-increasing situation of number of cells, the quantity of minizone downstream measurement reference signal also is being on the increase, and exists the possibility of disturbing also constantly to increase each other, especially for the LTE-A system, the existence of above-mentioned defective has influenced the stability of systematic function.
In order to prevent the interference of minizone downstream measurement reference signal, the embodiment of the invention has proposed a kind of method that downstream measurement reference signal disturbs of controlling, and is applied to comprise in the LTE-A system.
As shown in Figure 1, a kind of method of controlling the downstream measurement reference signal interference for the embodiment of the invention proposes specifically may further comprise the steps:
Step S101, base station configuration sequence, and/or frequency domain resource, and/or time-domain resource is given downstream measurement reference signal.
In this step, the configuration information of above-mentioned downstream measurement reference signal is adjustable.Promptly in concrete application scenarios, configuration information can be adjusted variation accordingly, such variation can be to carry out according to predetermined policy, it also can be completely random, the interference randomization that the downstream measurement reference signal that can make the minizone is set like this, because the allocation plan quantity of downlink quality reference signal is higher than the allocation plan quantity that has the downlink quality reference signal of disturbing far away, so such randomization can effectively reduce the interference of downstream measurement reference signal.
Wherein, the sequence of base station configuration, and/or frequency domain resource, and/or time-domain resource is different with neighbor cell, with the interference between the downstream measurement reference signal that reduces the minizone.
Step S102, base station send the configuration information of downstream measurement reference signal to user terminal.
In concrete application scenarios, can there be following two kinds of situations in the realization of this step:
Situation one, for the user terminal that newly enters current LTE-A system, can initiatively obtain, or receive the allocation plan of the downlink quality reference signal that the base station sends, and preserve the allocation plan of related cell to the base station.
Situation two, for the user terminal in the Already in current LTE-A system, before may preserve the allocation plan of the pairing descending test reference signal in each sub-district, if the allocation plan of the pairing downlink quality reference signal in each sub-district in the current LTE-A system changes, user terminal receives the allocation plan of the new descending test reference signal that the base station sends, and the allocation plan of the descending test reference signal preserved is upgraded.
What need further specify is, when using the COMP pattern in the described LTE-A system, user terminal receives and preserve the configuration information of the downstream measurement reference signal of all related cell.The effect of Chu Liing is under the COMP pattern like this, a plurality of sub-districts may appear to same user terminal cooperative data transmission or send the situation of descending test reference signal, under these circumstances, user terminal is preserved the allocation plan of the downstream measurement reference signal of all related cell, thereby, can discern the downstream measurement reference signal that all send to self, guarantee professional carrying out smoothly.
Step S103, base station are respectively by sequence, and/or frequency domain resource, and/or time-domain resource sends downstream measurement reference signal to described user terminal.
In concrete application scenarios, the processing procedure of this step specifically is divided into following several situation:
Situation one, under the CDMA pattern, when the base station respectively by different sequences when user terminal sends downstream measurement reference signal, the pairing sequence in a plurality of sub-districts generates according to cell ID.
By such mode, make the base station pass through yard resource when the downstream measurement reference signal of each sub-district that user terminal sends, employed sequence is distinct, thus the interference of avoiding the downstream measurement reference signal because of different districts to adopt identical sequence to cause.
Situation two, under the FDMA pattern, when the base station respectively by different frequency domain resource when user terminal sends downstream measurement reference signal, the start position of the pairing frequency domain resource in a plurality of sub-districts generates according to cell ID.
By such mode, make the base station by frequency domain resource when the downstream measurement reference signal of each sub-district that user terminal sends, shared original position is distinct, thereby avoids being positioned at the interference that identical frequency domain resource causes because of the downstream measurement reference signal of different districts.
Situation three, under the TDMA pattern, when described base station respectively by different time-domain resource when user terminal sends downstream measurement reference signal, the start position of the pairing time-domain resource in a plurality of sub-districts generates according to cell ID.
By such mode, make the base station by time-domain resource when the downstream measurement reference signal of each sub-district that user terminal sends, shared original position is distinct, thereby avoids being positioned at the interference that identical time-domain resource causes because of the downstream measurement reference signal of different districts.
Need to prove that three kinds of above-mentioned situations may be used alone, can also be used in combination, such variation does not influence protection scope of the present invention.
What need further specify is, when using the COMP pattern in the described LTE-A system, for above-mentioned situation two and situation three.When the base station sends downstream measurement reference signal by different frequency domain resource or time-domain resource to user terminal respectively, and the downstream measurement reference signal that has at least two sub-districts and data-signal are mutually during mutual interference, data-signal to above-mentioned at least two sub-districts carries out the punctured processing, by such mode, make the interference between data-signal and the downstream measurement reference signal drop to minimum.
On the other hand, the particular content that above-mentioned punctured handles comprises the modes such as sending data-signal of suspending, and the variation of the particular content that punctured handles does not influence protection scope of the present invention.
In concrete application scenarios, also can adopt the mode of resource reservation, address the above problem, be specially:
When the base station respectively by different frequency domain resource or time-domain resource when user terminal sends described downstream measurement reference signal, the base station is according to the downstream measurement reference signal configuration information of relevant a plurality of sub-districts, resource reservation is carried out in time-frequency position to measuring reference signals when data map, thereby avoids the interference between multi-cell downlink measuring reference signals and data-signal.
Step S104, user terminal receive the downstream measurement reference signal that the base station sends according to the configuration information of downstream measurement reference signal.
Configuration information according to each cell downlink measuring reference signals of being preserved in the above-mentioned user terminal, user terminal obtains the corresponding downstream measuring reference signals from numerous signals that the base station sends, and handle accordingly, if desired, user terminal also needs to handle feedback accordingly to the base station.
By above-mentioned step, realized the flexible configuration of the downstream measurement reference signal of each sub-district, by the CDMA/FDMA/TDMA isotype, guaranteeing to send smoothly downstream measurement reference signal, on the basis of safeguards system performance, effectively avoided the interference between the downstream measurement reference signal of each sub-district.
Further, in conjunction with concrete application scenarios, be that the technical scheme that force proposes further describes in detail to the present invention.
As shown in Figure 2, under the CDMA pattern, a kind of schematic flow sheet of controlling the method for down-run survey parameter interference that the embodiment of the invention proposed may further comprise the steps:
UE is issued with the configuration information of downstream measurement reference signal in step S201, base station.
Consider the COMP pattern, UE need receive all pilot configuration information of related cell.
Step S202, base station send the downstream measurement reference signal of different districts to UE by different sequences.
In order to make the interference randomization between minizone downstream measurement reference signal and the data-signal, above-mentioned allocation plan is adjustable, for the LTE-A system that is under the CDMA pattern, even same sub-district, in the different time periods, also might send downstream measurement reference signal to UE,, can significantly reduce the probability that occurs interference between the downstream measurement reference signal by such sequence change at random by different sequences.
For example, when descending measuring reference signals adopted ZC or pseudo random sequence, choosing of sequence was relevant with the cell ID of each sub-district.
As shown in Figure 3, under the FDMA pattern, a kind of schematic flow sheet of controlling the method for down-run survey parameter interference that the embodiment of the invention proposed may further comprise the steps:
UE is issued with the configuration information of downstream measurement reference signal in step S301, base station.
Consider the COMP pattern, UE need receive the information of all downstream measurement reference signals of related cell.
In order to make the interference randomization between minizone downstream measurement reference signal and the data-signal, above-mentioned allocation plan is adjustable, by the change at random of such configuration mode, can significantly reduce the probability that occurs interference between the downstream measurement reference signal.
Step S302, base station send the downstream measurement reference signal of different districts to UE by different frequency domain resource.
The downstream measurement reference signal of different districts takies different frequency domain resource, and original position is relevant with cell ID.
As shown in Figure 4, the longitudinal axis is the frequency domain axle, and transverse axis is the time slot axle, and cell 0 lays respectively at different frequencies with cell 1 at the downstream measurement reference signal that the 4th time slot is sent, and can effectively avoid the interference between the downstream measurement reference signal like this.
Need to prove that under the COMP pattern, the data that adjacent sub-district is disturbed can be by punctured.
As shown in Figure 5, under the TDMA pattern, a kind of schematic flow sheet of controlling the method for down-run survey parameter interference that the embodiment of the invention proposed may further comprise the steps:
UE is issued with the configuration information of downstream measurement reference signal in step S501, base station.
Consider the COMP pattern, UE need receive the configuration information of all downstream measurement reference signals of related cell.
In order to make the interference randomization between minizone downstream measurement reference signal and the data-signal, above-mentioned allocation plan is adjustable, by the change at random of such configuration mode, can significantly reduce the probability that occurs interference between the downstream measurement reference signal.
Step S502, base station send the downstream measurement reference signal of different districts to UE by different time-domain resource (comprising subframe numbers/timeslot number/symbol).
The downstream measurement reference signal of different districts takies different time-domain resource, and original position is relevant with cell ID.
As shown in Figure 6, cell 0 lays respectively at different time slot (the 0th time slot and the 2nd time slot) with cell 1 at the downstream measurement reference signal that is sent, and can effectively avoid the interference between the downstream measurement reference signal like this.
Need to prove that under the COMP pattern, the data that adjacent sub-district is disturbed can be by punctured.
By above-mentioned scheme, realized the flexible configuration of the downstream measurement reference signal of each sub-district, by the CDMA/FDMA/TDMA isotype, guaranteeing to send smoothly downstream measurement reference signal, on the basis of safeguards system performance, effectively avoided the interference between the downstream measurement reference signal of each sub-district.
In order to realize above-mentioned technical scheme proposed by the invention, the embodiment of the invention has also proposed a kind of base station.Be applied to comprise in the senior Long Term Evolution LTE-A system, as shown in Figure 7, comprise:
In concrete application scenarios, generation module also is used for the configuration information of random modification downstream measurement reference signal.
Configuration module 2 is used for the configuration information of the downstream measurement reference signal that generated according to generation module 1, is base station selected sequence, or frequency domain resource, or time-domain resource.
Wherein, the sequence that configuration module 2 is disposed, and/or frequency domain resource, and/or time-domain resource is different with neighbor cell, with the interference between the downstream measurement reference signal that reduces the minizone.
Sending module 3, the configuration information that is used for downstream measurement reference signal that configuration module 2 is generated sends to user terminal, also is used for by the selected sequence of configuration module, or frequency domain resource, or time-domain resource, send downstream measurement reference signal to user terminal, be specially:
According to cell ID cell ID formation sequence;
Select the start position of frequency domain resource according to cell ID;
Select the start position of time-domain resource according to cell ID.
Need be pointed out that further that when using the COMP pattern in the LTE-A system, the base station also comprises:
Data punching module 4, be used for sending downstream measurement reference signal by different frequency domain resource or time-domain resource to user terminal respectively when the base station, and the downstream measurement reference signal that has at least two sub-districts and data-signal be mutually during mutual interference, and the data-signal of at least two sub-districts is carried out the punctured processing; Or,
Resource reservation module 5, be used for when the base station respectively by different frequency domain resource or time-domain resource when user terminal sends described downstream measurement reference signal, the base station is according to the downstream measurement reference signal configuration information of relevant a plurality of sub-districts, resource reservation is carried out in time-frequency position to measuring reference signals when data map, thereby avoids the interference between multi-cell downlink measuring reference signals and data-signal.
It is pointed out that in concrete application scenarios according to the difference of concrete processing policy, the base station can include only in above-mentioned data punching module 4 and the resource reservation module 5, such variation does not influence protection scope of the present invention.
By above-mentioned base station, realized the flexible configuration of the downstream measurement reference signal of each sub-district, by the CDMA/FDMA/TDMA isotype, guaranteeing to send smoothly downstream measurement reference signal, on the basis of safeguards system performance, effectively avoided the interference between the downstream measurement reference signal of each sub-district.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, service end, the perhaps network equipment etc.) each implements the described method of scene to carry out the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is a preferred schematic diagram of implementing scene, module in the 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 of implementing in the scene can be distributed in the device of implementing scene according to implementing scene description, also can carry out respective change and be arranged in the one or more devices that are different from this enforcement scene.The module of above-mentioned enforcement scene can be merged into a module, also can further split into a plurality of submodules.
The invention described above sequence number is not represented the quality of implementing scene just to description.
More than disclosed only be several concrete enforcement scene of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (9)
1. control the method that downstream measurement reference signal disturbs for one kind, it is characterized in that, be applied in the senior Long Term Evolution LTE-A system, described method comprises:
Base station configuration sequence, and/or frequency domain resource, and/or time-domain resource is given downstream measurement reference signal;
Described base station sends the configuration information of downstream measurement reference signal to user terminal;
Described base station is respectively by sequence, and/or frequency domain resource, and/or time-domain resource sends downstream measurement reference signal to described user terminal;
Described user terminal receives the downstream measurement reference signal that described base station sends according to the configuration information of described downstream measurement reference signal;
Wherein, when using the COMP pattern in the described LTE-A system,
When described base station sends described downstream measurement reference signal by different frequency domain resource or time-domain resource to user terminal respectively, and the downstream measurement reference signal that has at least two sub-districts and data-signal be mutually during mutual interference, to the punctured processing of punching of the data-signal of described at least two sub-districts; Or,
When described base station respectively by different frequency domain resource or time-domain resource when user terminal sends described downstream measurement reference signal, described base station is according to the downstream measurement reference signal configuration information of relevant a plurality of sub-districts, and resource reservation is carried out in the time-frequency position to measuring reference signals when data map.
2. the method for claim 1 is characterized in that, the sequence of described base station configuration, and/or frequency domain resource, and/or time-domain resource is different with neighbor cell.
3. the method for claim 1 is characterized in that, described base station configuration sequence, and/or frequency domain resource, and/or time-domain resource specifically comprises to downstream measurement reference signal:
When the suitable sequence resource of described base station configuration was given downstream measurement reference signal, described sequence generated according to the cell ID cell ID of described base station configuration; And/or,
When the suitable frequency domain resource of described base station configuration was given downstream measurement reference signal, the start position of described frequency domain resource generated according to the cell ID of described base station configuration; And/or,
When the suitable time-domain resource of described base station configuration was given downstream measurement reference signal, the start position of described time-domain resource generated according to the cell ID of described base station configuration.
4. as claim 1 or 3 described methods, it is characterized in that the configuration of described downstream measurement reference signal is adjustable.
5. the method for claim 1 is characterized in that, described base station sends the configuration information of described downstream measurement reference signal to user terminal, also comprises:
When using multipoint cooperative transmission COMP pattern in the described LTE-A system, described user terminal receives and preserves the configuration information of the downstream measurement reference signal of all related cell.
6. a base station is characterized in that, is applied to comprise in the senior Long Term Evolution LTE-A system:
Generation module is used to generate the configuration information of downstream measurement reference signal;
Configuration module is used for the configuration information of the described downstream measurement reference signal that generates according to described generation module, is described base station selected sequence, and/or frequency domain resource, and/or time-domain resource;
Sending module, the configuration information that is used for described downstream measurement reference signal that described configuration module is generated sends to user terminal, also is used for by the selected sequence of described configuration module, and/or frequency domain resource, and/or time-domain resource, send downstream measurement reference signal to user terminal;
Wherein, when using the COMP pattern in the described LTE-A system, described base station also comprises:
Data punching module, be used for sending described downstream measurement reference signal by different frequency domain resource or time-domain resource to user terminal respectively when described base station, and the downstream measurement reference signal that has at least two sub-districts and data-signal be mutually during mutual interference, and the data-signal of described at least two sub-districts is carried out the punctured processing; Or,
The resource reservation module, be used for sending described downstream measurement reference signal by different frequency domain resource or time-domain resource to user terminal respectively when described base station, described base station is according to the downstream measurement reference signal configuration information of relevant a plurality of sub-districts, and resource reservation is carried out in the time-frequency position to measuring reference signals when data map.
7. base station as claimed in claim 6 is characterized in that, the sequence that described configuration module disposed, and/or frequency domain resource, and/or time-domain resource is different with neighbor cell.
8. base station as claimed in claim 6 is characterized in that, described generation module also is used for the configuration information of the described downstream measurement reference signal of random modification.
9. base station as claimed in claim 6 is characterized in that, described configuration module is used for the configuration information of the downstream measurement reference signal that generates according to described generation module, selects sequence, and/or frequency domain resource, and/or time-domain resource, is specially:
Cell ID cell ID according to described base station configuration generates the pairing sequence in described base station; And/or,
Generate the start position of the pairing frequency domain resource in described base station according to the cell ID cell ID of described base station configuration; And/or,
Generate the start position of the pairing time-domain resource in described base station according to the cell ID cell ID of described base station configuration.
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|---|---|---|---|---|
| CN102595436B (en) * | 2011-01-13 | 2015-05-27 | 华为技术有限公司 | Method, device and system for detecting interference |
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