CN102377464A - Sending method and device of reference signals for downlink channel state measurement - Google Patents
Sending method and device of reference signals for downlink channel state measurement Download PDFInfo
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- CN102377464A CN102377464A CN2010102479544A CN201010247954A CN102377464A CN 102377464 A CN102377464 A CN 102377464A CN 2010102479544 A CN2010102479544 A CN 2010102479544A CN 201010247954 A CN201010247954 A CN 201010247954A CN 102377464 A CN102377464 A CN 102377464A
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Abstract
The invention discloses a sending method of reference signals for downlink channel state measurement. A mode of the downlink channel state measurement is configured at a base station side; the quantity of sent reference signals for the downlink channel state measurement is decreased by the base station side according to the mode; and carrying out the downlink channel state measurement according to manners except a manner which is only based on the reference signals of the downlink channel state measurement. With the application of the sending method, the cost of the reference signals for the downlink channel state measurement is reduced at the base station side on the premise that downlink channel state measurement is ensured.
Description
Technical field
The present invention relates to reference signal, particularly the sending method of down channel state measurement reference signal and device.
Background technology
Down channel state measurement reference signal comprises: channel state information reference signals (CSIRS, Channel State Information Reference Signal) and public reference signal (CRS, Common Reference Signal).At present in the LTE-A standard formulation process of 3GPP RAN1; The sending method that relates to CSIRS among the LTE-A; The prior art scheme mainly is to FDD (FDD, Frequency Division Duplexing) system, require the base station at each antenna port all to subscriber equipment (UE; User Equipment) send CSIRS, UE carries out the down channel state measurement and down channel state measurement result is reported the base station based on CSIRS.The situation that in LTE-A, also possibly exist the base station all to send CRS to UE at each antenna port, at this moment UE carries out the down channel state measurement and down channel state measurement result is reported the base station based on CRS.
The in fact also inapplicable all systems of above-mentioned prior art scheme; For example; If directly will have now to the technical scheme of FDD system and divert time-division duplex (TDD; Time Division Duplexing) in the system, because the TDD system itself has the up-downgoing channel reciprocity, the down channel state can be measured based on the uplink reference signals that UE sends in the base station; If, just increased the expense of down channel state measurement reference signal so down channel state measurement reference signal is still all sent to UE at each antenna port in the base station in this case.
Summary of the invention
The present invention provides a kind of sending method of down channel state measurement reference signal, and base station side can reduce the expense of down channel state measurement reference signal under the prerequisite that guarantees the down channel state measurement.
The present invention provides a kind of dispensing device of down channel state measurement reference signal, and based on this device, base station side can reduce the expense of down channel state measurement reference signal under the prerequisite that guarantees the down channel state measurement.
Technical scheme of the present invention is achieved in that
A kind of sending method of down channel state measurement reference signal, key are that this method comprises:
The pattern that base station side configurating downlink channel status is measured;
Base station side is according to said pattern, reduces the quantity of sending down channel state measurement reference signal, and according to except that only carrying out the down channel state measurement based on the mode the down channel state measurement reference signal.
A kind of dispensing device of down channel state measurement reference signal, key are that this device comprises:
Configuration module, the pattern that the configurating downlink channel status is measured;
Measurement module according to the pattern of said configuration module configures, reduce to send the quantity of down channel state measurement reference signal, and according to except that only carrying out the down channel state measurement based on the mode the down channel state measurement reference signal.
It is thus clear that; In the sending method of down channel state measurement reference signal of the present invention; Because base station side is according to except that only carrying out the down channel state measurement based on the mode the down channel state measurement reference signal; So need not send with prior art FDD system in the identical down channel state measurement reference signal of quantity; Base station side just can reduce the quantity of sending down channel state measurement reference signal like this, and no matter this down channel state measurement reference signal is CRS or CSIRS, has all reduced the expense of down channel state measurement reference signal.
Description of drawings
Fig. 1 is the flow chart of the sending method of down channel state measurement reference signal among the present invention;
Fig. 2 is the flow chart of the sending method of down channel state measurement reference signal in the embodiment of the invention one;
Fig. 3 is the flow chart of the sending method of down channel state measurement reference signal in the embodiment of the invention two;
Fig. 4 is the flow chart of the sending method of down channel state measurement reference signal in the embodiment of the invention three;
Fig. 5 is the structural representation of the dispensing device of down channel state measurement reference signal among the present invention;
Fig. 6 is the structural representation of the dispensing device of down channel state measurement reference signal in the embodiment of the invention four.
Embodiment
For making objects and advantages of the present invention clearer, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Fig. 1 is the flow chart of the sending method of down channel state measurement reference signal among the present invention, and this flow process comprises:
Step 101: the pattern that base station side configurating downlink channel status is measured.
Step 102: base station side is according to said pattern, reduces the quantity of sending down channel state measurement reference signal, and according to except that only carrying out the down channel state measurement based on the mode the down channel state measurement reference signal.
It is thus clear that; In the sending method of down channel state measurement reference signal of the present invention; Because base station side is according to except that only carrying out the down channel state measurement based on the mode the down channel state measurement reference signal; So need not send with prior art FDD system in the down channel state measurement reference signal of equal number; Base station side just can reduce the quantity of sending down channel state measurement reference signal like this, and no matter this down channel state measurement reference signal is CRS or CSIRS, has all reduced the expense of down channel state measurement reference signal.
In the present invention, the configuration described in the step 101 comprises following two kinds of situation:
First; The pattern of the pre-configured multiple down channel state measurement of base station side; Wherein every kind of pattern has a sign, and base station side accomplishes the content that the sign of notifying every kind of pattern of UE side in the back and this pattern comprise pre-configured, and the configuration indication in the above-mentioned steps 101 is exactly that base station side is selected a kind of pattern as the current downlink channel state measurement from pre-configured pattern like this; At this moment base station side is when this pattern of notice UE side; Only notify the sign of the down channel state measurement of the current use of UE side to get final product, the UE side just can be known the content that this pattern comprises according to sign, carries out follow-up down channel state measurement operation with base station communication then; Further; If method of the present invention is applied under the measurement demand scene of multi-cell cooperating; For example be applied in the coordinate multipoint (CoMP, Coordinated Multi Points), base station side need be to each sub-district pre-configured down channel state measurement pattern in the measurement cell set.For example; Supposing has 3 sub-districts in the set of CoMP measurement cell; The base station need dispose the down channel state measurement pattern of these 3 sub-districts respectively; For example the down channel state measurement is carried out according to the mode identical with prior art in sub-district 1; Allocating cell 2 is for carrying out the down channel state measurement based on a kind of pattern of sending down channel state measurement reference signal that reduces, and allocating cell 3 is carried out the down channel state measurement for the another kind that is different from sub-district 2 reduces the pattern of sending down channel state measurement reference signal.
The second, in step 101, what configuration referred to is exactly the pattern that base station side disposes the current downlink channel state measurement in real time, and at this moment base station side needs directly to notify the UE side institute content that configuration mode comprises.Among the following embodiment that enumerates, be example all with above-mentioned first kind of configuration and advice method.
Provide several specific embodiments of the inventive method below.
Embodiment one
Fig. 2 is the flow chart of the sending method of down channel state measurement reference signal in the embodiment of the invention one, and this flow process comprises:
Step 201: base station side is selected the pattern of current downlink channel state measurement, and the sign of this pattern of selecting of notice UE side.
In this step, the pattern of current downlink channel state measurement comprises: base station side is sent CRS and is not sent CSIRS, and the antenna port number that wherein sends CRS is less than being used for the antenna port number that data channel sends; The uplink channel measurement reference signal that base station side is sent based on the UE side is carried out the down channel state measurement, the UE side group in CRS carry out except that the down channel state measurement other measurements and with reporting measuring result to the base station.
Owing to carry out other measurements except that the down channel state measurement based on CRS; Than carrying out the down channel state measurement based on CRS; Base station side need not to send a large amount of CRS, so the antenna port number of above-mentioned transmission CRS is less than being used for the antenna port number that data channel sends, being actually having reduced the quantity of sending CRS; Specifically send CRS, need confirm according to the real needs of above-mentioned other measurements at several antenna ports.In other application scenarios; The antenna port number that sends CRS is equated with the antenna port number that is used for the data channel transmission; And sending CRS in the part Resource Unit (RE, Resource Element) that only in existing pattern, takies, so also is to have reduced the quantity of sending CRS.
Step 202: according to the pattern of current downlink channel state measurement, base station side is sent CRS, and the uplink channel measurement reference signal that sends based on UE carries out the down channel state measurement; Base station side receives other measurement results except that the down channel state measurement that the UE side reports.
In this step, base station side is carried out the down channel state measurement based on the uplink channel measurement reference signal that UE sends, and has utilized the reciprocity characteristics of up-downgoing channel, and the concrete grammar of measurement is a general knowledge known in this field, repeats no more here.Other measurements except that the down channel state measurement can comprise interferometry etc., and this moment, CRS only need send at the part antenna port, even only need send at an antenna port.
Instantiation in the present embodiment is following: suppose that it is N that base station side is used for the antenna port number that data channel sends; Comprise in the down channel state measurement pattern: send CRS at n antenna port; N＜N wherein; The uplink channel measurement reference signal that base station side is sent based on the UE side is carried out the down channel state measurement, the UE side group in CRS carry out except that the down channel state measurement other measurements and with the reporting measuring result base station side.
Present embodiment one provides a kind of pattern of carrying out the down channel state measurement based on uplink channel measurement reference signal; Can carry out other measurements except that the down channel state measurement this moment based on CRS, can certainly carry out other measurements except that the down channel state measurement based on other modes.
Embodiment two
Fig. 3 is the flow chart of the sending method of down channel state measurement reference signal in the embodiment of the invention two, and this flow process comprises:
Step 301: base station side is selected the pattern of current downlink channel state measurement, and the sign of the selected pattern of notice UE side.
In this step, the pattern of current downlink channel state measurement comprises: base station side is sent CSIRS and CRS, and the antenna port number average that wherein sends CSIRS and CRS is less than being used for the antenna port number that data channel sends; Base station side is carried out the down channel state measurement based on the uplink channel measurement reference signal that UE sends, the UE side group in CSIRS and CRS carry out except that the down channel state measurement other measurements and with reporting measuring result to the base station.
Owing to carry out other measurements except that the down channel state measurement; Than carrying out the down channel state measurement; Base station side need not to send a large amount of CRS or CSIRS, so the antenna port number average of above-mentioned transmission CRS and CSIRS is less than being used for the antenna port number that data channel sends, being actually having reduced the quantity of sending CRS and CSIRS; Specifically send CRS and CSIRS, need confirm according to the real needs of above-mentioned other measurements at several antenna ports.In other application scenarios; Can also send CRS and CSIRS respectively at the antenna port that equates with the antenna port number that is used for the data channel transmission; And sending on the part RE that each antenna port only takies in existing pattern, so also is to have reduced the quantity of sending CRS and CSIRS.
Step 302: according to the pattern of down channel state measurement; Base station side is sent CSIRS and CRS; The uplink channel measurement reference signal that sends based on the UE side carries out the down channel state measurement, receives other measurement results except that the down channel state measurement that the UE side reports.
In this step, base station side is carried out the down channel state measurement based on uplink channel measurement reference signal, has utilized the reciprocity characteristics of up-downgoing channel, and the concrete grammar of measurement is a general knowledge known in this field, repeats no more here.Other measurements except that the down channel state measurement can comprise interferometry etc., and this moment, CSIRS and CRS only need send at the part antenna port, even only need send at an antenna port.
Instantiation in the present embodiment is following: suppose that it is N that base station side is used for the antenna port number that data channel sends; Comprise in the down channel state measurement pattern: send CSIRS at n1 antenna port; Send CRS at n2 antenna port; Wherein n1＜N, n2＜N, base station side is carried out the down channel state measurement based on the up channel reference signal that UE sends, the UE side group in CSIRS and CRS carry out except that the down channel state measurement other measurements and with reporting measuring result to the base station.
Present embodiment two provides a kind of pattern of carrying out the down channel state measurement based on uplink channel measurement reference signal; Can carry out other measurements except that the down channel state measurement this moment based on CRS and CSIRS; Can certainly only carry out other measurements except that the down channel state measurement, perhaps only go out other outer measurements of down channel state measurement based on CRS based on CSIRS.
In the present embodiment two, base station side also can only be sent CSIRS, and UE only carries out other measurements except that the down channel state measurement based on CSIRS.
Embodiment three
Fig. 4 is the flow chart of the sending method of down channel state measurement reference signal in the embodiment of the invention three, and this flow process comprises:
Step 401: base station side is selected the pattern of current downlink channel state measurement, and the sign of the selected pattern of notice UE side.
In this step, the pairing content of the sign of the pattern of down channel state measurement comprises: cycle and/or frequency range that base station side is not sent uplink channel measurement reference signal in the UE side are sent CSIRS; Base station side is sent the cycle and/or the frequency range of uplink channel measurement reference signal in the UE side; Uplink channel measurement reference signal based on the UE side is sent is carried out the down channel state measurement; Send cycle and/or the frequency range of CSIRS at self, base station side receives the down channel state measurement result that UE reports.
Step 402: according to the pattern of down channel state measurement, base station side is sent CSIRS, carries out the down channel state measurement, reaches the down channel state measurement result that reception UE side reports based on uplink channel measurement reference signal.
In this step, base station side is carried out the down channel state measurement based on uplink channel measurement reference signal, has utilized the reciprocity characteristics of up-downgoing channel, and the concrete grammar of measurement is a general knowledge known in this field, repeats no more here.
Instantiation in the present embodiment is following: the transmission cycle of supposing base station side configuration CSIRS is 20 milliseconds; The time point that for example sends CSIRS is 0 millisecond, 20 milliseconds, 40 milliseconds etc.; And the UE side to send the time point of uplink channel measurement reference signal be 10 milliseconds, 30 milliseconds etc.; The transmission cycle of the transmission cycle of uplink channel measurement reference signal and CSIRS forms complementation like this, and in the cycle that the UE side is sent uplink channel measurement reference signal, base station side is carried out the down channel state measurement based on uplink channel measurement reference signal; Send the cycle of CSIRS at self, base station side receives the down channel state measurement result that UE reports.
Present embodiment three provides a kind of complement mode of on time domain and/or frequency domain, carrying out the down channel state measurement; Based on the up channel reference signal with based on staggered execution of down channel state measurement that CSIRS carries out, so also be equivalent to reduce the quantity that CSIRS sends.
In the present embodiment three; Send the cycle and/or the frequency range of uplink channel measurement reference signal in the UE side; The up channel state measurement is carried out based on uplink channel measurement reference signal in the base station; When base station side transmitting channel state information reference signals, base station side can also obtain the up channel state information based on the measurement result that the UE side reports, and promptly present embodiment three also provides a kind of execution mode for the up channel state measurement.
Introduce the dispensing device of down channel state measurement reference signal among the present invention below, this device is positioned at base station side.
Fig. 5 is the structural representation of the dispensing device of down channel state measurement reference signal among the present invention, and this device comprises: configuration module and measurement module.
Above-mentioned configuration module, the pattern that the configurating downlink channel status is measured.
Above-mentioned measurement module according to the pattern of said configuration module configures, reduce to send the quantity of down channel state measurement reference signal, and according to except that only carrying out the down channel state measurement based on the mode the down channel state measurement reference signal.
Provide several embodiment of device shown in Figure 5 below.
Embodiment four
Fig. 6 is the structural representation of the dispensing device of down channel state measurement reference signal in the embodiment of the invention four.
As shown in Figure 6, comprise configuration module and measurement module in this device.
Comprise in the above-mentioned configuration module: pre-configured unit, first notification unit, configuration performance element and second notification unit.
Above-mentioned pre-configured unit, the pattern of pre-configured multiple down channel state measurement.
Above-mentioned first notification unit, the content that the sign of every kind of pattern of notice UE side and this pattern comprise after said pre-configured configuration of cells is accomplished.
Above-mentioned configuration performance element is confirmed the sign of the pattern of current use.
Above-mentioned second notification unit, the sign that the said configuration performance element of notice UE side is determined.
If the device in the present embodiment is used and the down channel state measurement of multi-cell cooperating, the pattern of the corresponding a kind of down channel state measurement in each sub-district wherein, then above-mentioned first notification unit is directed against each the UE side executable operations in each sub-district.
The structure of above-mentioned configuration module is merely a kind of concrete giving an example; In the more unshowned structures of Fig. 6; Configuration module also can not carried out pre-configured operation; And be the pattern that UE side configurating downlink channel status is measured in real time, in this case, comprise in the configuration module: configuration performance element and notification unit.
Above-mentioned configuration performance element is the pattern of UE side configuration current downlink channel state measurement.
Above-mentioned notification unit, the content of the said configuration performance element of notice UE side pattern arranged.
In the present embodiment four, above-mentioned measurement module comprises: transmitting element and measurement performance element.
Above-mentioned transmitting element, not transmitting channel state information reference signals.
Above-mentioned measurement performance element carries out the down channel state measurement based on the out-hole run reference signal that the UE side is sent.
Further, above-mentioned transmitting element is further used for sending CRS, and the antenna port number that sends CRS is less than being used for the antenna port number that data channel sends; Above-mentioned measurement performance element is further used for, and receives UE and carries out other measurement results measuring the back, reported except that the down channel state measurement based on said public reference signal.Under other application scenarioss; The transmitting element here is in order to reduce the number that sends CRS; Also can adopt other a kind of mode; The antenna port number that promptly sends CRS be used for the antenna port number that data channel sends and equate, but send on the part RE in each port, this also has been equivalent to reduce the number of transmission CRS.
Present embodiment four provides that base station side is not sent CSIRS but sends CRS; Base station side is carried out the down channel state measurement based on the uplink channel measurement reference signal that UE sends, the UE side group in CRS carry out except that the down channel state measurement other measurements and with reporting measuring result to base station side.
Embodiment five
Configuration module in the present embodiment device is all identical with structure shown in Figure 6 and function.
Measurement module in the present embodiment device is identical with structure shown in Figure 6, but the function of carrying out is inequality, and details are as follows.
Transmitting element sends CSIRS, and the antenna port number that sends CSIRS is less than being used for the antenna port number that data channel sends.
Measure performance element, carry out the down channel state measurement based on the out-hole run reference signal that the UE side is sent.
Further, the transmitting element in the present embodiment is further used for sending CRS, and the antenna port number that sends CRS is less than being used for the antenna port number that data channel sends; Measurement performance element in the present embodiment is further used for receiving the UE side group and carries out other measurement results measuring the back, reported except that the down channel state measurement in CRS and/or CSIRS.Under other application scenarioss; The transmitting element here is in order to reduce the number that sends CRS; Also can adopt other a kind of mode; The antenna port number that promptly sends CRS be used for the antenna port number that data channel sends and equate, but only send on the part RE in each port, this also has been equivalent to reduce the number of transmission CRS.
In the present embodiment five, base station side is carried out the down channel state measurement based on the uplink channel measurement reference signal that UE sends, the UE side group in CRS and/or CSIRS carry out except that the down channel state measurement other measurements and with the reporting measuring result base station side.
In the present embodiment five; Transmitting element can only send CSIRS; Measuring performance element also can receive the UE side and only carry out other measurement results measuring the back, reported except that the down channel state measurement based on CSIRS when carry out the down channel state measurement based on uplink channel measurement reference signal.
Embodiment six
Configuration module in the present embodiment device is all identical with structure shown in Figure 6 and function.
Measurement module in the present embodiment device is identical with structure shown in Figure 6, but the function of carrying out is inequality, and details are as follows.
Transmitting element does not send the cycle and/or the frequency range of uplink channel measurement reference signal and sends CSIRS in the UE side;
Measure performance element,, carry out the down channel state measurement based on uplink reference signals in cycle and/or the frequency range that the UE side is sent uplink channel measurement reference signal; When said transmitting element sends CSIRS, receive the UE side group after the downlink channel condition information reference signal is carried out the down channel state measurement, the measurement result that reported.
In the present embodiment, base station side is staggered carries out the uplink channel measurement reference signal that sends based on UE and based on the down channel state measurement of CSIRS.
Except the down channel state measurement, based on the reciprocity of up-downgoing channel, the device among the present invention also can expanded function be applied in the measurement of up channel state, and at this moment the measurement module in this device comprises: transmitting element and measurement performance element.
Above-mentioned transmitting element does not send the cycle and/or the frequency range of uplink channel measurement reference signal and sends the downlink channel condition information reference signal in the UE side.
Above-mentioned measurement performance element in cycle and/or the frequency range that the UE side is sent uplink channel measurement reference signal, carries out the up channel state measurement based on uplink channel measurement reference signal; When said transmitting element transmitting channel state information reference signals, the measurement result that reports based on the UE side obtains the up channel state information.
In sum, more than being merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (24)
1. the sending method of a down channel state measurement reference signal is characterized in that, this method comprises:
The pattern that base station side configurating downlink channel status is measured;
Base station side is according to said pattern, reduces the quantity of sending down channel state measurement reference signal, and according to except that only carrying out the down channel state measurement based on the mode the down channel state measurement reference signal.
2. the method for claim 1 is characterized in that, said pattern comprises:
Base station side is the transmitting channel state information reference signals not;
The out-hole run reference signal that base station side is sent based on user equipment side is carried out the down channel state measurement.
3. method as claimed in claim 2 is characterized in that, said pattern further comprises: base station side is sent public reference signal, and the antenna port number that sends public reference signal is less than being used for the antenna port number that data channel sends;
User equipment side based on said public reference signal carry out except that the down channel state measurement other measurements and with reporting measuring result to base station side.
4. the method for claim 1 is characterized in that, said pattern comprises:
Base station side transmitting channel state information reference signals, the antenna port number of transmitting channel state information reference signals is less than being used for the antenna port number that data channel sends;
The out-hole run reference signal that base station side is sent based on user equipment side is carried out the down channel state measurement.
5. method as claimed in claim 4 is characterized in that, said pattern further comprises: base station side is sent public reference signal, and the antenna port number that sends public reference signal is less than being used for the antenna port number that data channel sends;
User equipment side is carried out other measurements except that the down channel state measurement and is given base station side with reporting measuring result based on public reference signal and/or channel state information reference signals.
6. method as claimed in claim 4 is characterized in that, said pattern further comprises:
User equipment side is carried out other measurements except that the down channel state measurement and is given base station side with reporting measuring result based on channel state information reference signals.
7. like claim 2 or 4 described methods, it is characterized in that this pattern further comprises:
Base station side is sent public reference signal, and the antenna port number that sends public reference signal equates with the antenna port number that is used for the data channel transmission, and sends on the part Resource Unit in each port;
User equipment side is carried out other measurements except that the down channel state measurement and is given base station side with reporting measuring result based on public reference signal.
8. the method for claim 1 is characterized in that, said pattern comprises:
Cycle and/or frequency range that base station side is not sent uplink channel measurement reference signal in user equipment side are sent the downlink channel condition information reference signal;
Cycle and/or frequency range that base station side is sent uplink channel measurement reference signal in user equipment side, base station side is carried out the down channel state measurement based on uplink reference signals; When base station side was sent the downlink channel condition information reference signal, user equipment side was carried out the down channel state measurement and is given base station side with reporting measuring result based on the downlink channel condition information reference signal.
9. the method for claim 1 is characterized in that, this pattern comprises:
Cycle and/or frequency range that base station side is not sent uplink channel measurement reference signal in user equipment side are sent the downlink channel condition information reference signal;
In cycle and/or frequency range that user equipment side is sent uplink channel measurement reference signal, base station side is carried out the up channel state measurement based on uplink channel measurement reference signal;
When base station side transmitting channel state information reference signals, the measurement result that base station side reports based on user equipment side obtains the up channel state information.
10. like each described method of claim 1 to 9; It is characterized in that; This method further comprises: the pattern of the pre-configured multiple down channel state measurement of base station side, and after configuration is accomplished the sign of every kind of pattern of notifying user equipment side and the content that this pattern comprises;
The pattern that said base station side configurating downlink channel status is measured is: base station side is confirmed the sign of the pattern of current use, and the said sign of being somebody's turn to do of notifying user equipment side.
11. method as claimed in claim 10 is characterized in that, this method is applied to the down channel state measurement of multi-cell cooperating, wherein the pattern of the corresponding a kind of down channel state measurement in each sub-district; The notifying operation that said base station side is carried out after configuration is accomplished is to each subscriber equipment in each sub-district.
12. like each described method of claim 1 to 9; It is characterized in that; The pattern that base station side configurating downlink channel status is measured is: base station side is the pattern of user equipment side configuration current downlink channel state measurement, and the content of this pattern of notifying user equipment side.
13. the dispensing device of a down channel state measurement reference signal is characterized in that, this device comprises:
Configuration module, the pattern that the configurating downlink channel status is measured;
Measurement module according to the pattern of said configuration module configures, reduce to send the quantity of down channel state measurement reference signal, and according to except that only carrying out the down channel state measurement based on the mode the down channel state measurement reference signal.
14. device as claimed in claim 13 is characterized in that, comprises in the said measurement module:
Transmitting element, not transmitting channel state information reference signals;
Measure performance element, carry out the down channel state measurement based on the out-hole run reference signal that user equipment side is sent.
15. device as claimed in claim 14 is characterized in that, said transmitting element is further used for, and sends public reference signal, and the antenna port number that sends public reference signal is less than being used for the antenna port number that data channel sends;
Said measurement performance element is further used for, and receives user equipment side and carries out other measurement results measuring the back, reported except that the down channel state measurement based on said public reference signal.
16. device as claimed in claim 13 is characterized in that, said measurement module comprises:
Transmitting element, the transmitting channel state information reference signals, the antenna port number of transmitting channel state information reference signals is less than being used for the antenna port number that data channel sends;
Measure performance element, carry out the down channel state measurement based on the out-hole run reference signal that user equipment side is sent.
17. device as claimed in claim 16 is characterized in that, said transmitting element is further used for, and sends public reference signal, and the antenna port number that sends public reference signal is less than being used for the antenna port number that data channel sends;
Said measurement performance element is further used for, and receives user equipment side and carries out other measurement results measuring the back, reported except that the down channel state measurement based on public reference signal and/or channel state information reference signals.
18. device as claimed in claim 16 is characterized in that, said measurement performance element is further used for, and receives user equipment side and carries out other measurement results measuring the back, reported except that the down channel state measurement based on channel state information reference signals.
19. like claim 14 or 16 described devices; It is characterized in that; Said transmitting element is further used for; Send public reference signal, the antenna port number that sends public reference signal equates with the antenna port number that is used for the data channel transmission, and sends on the part Resource Unit in each port;
Said measurement performance element is further used for, and receives user equipment side and carries out other measurement results measuring the back, reported except that the down channel state measurement based on public reference signal.
20. device as claimed in claim 13 is characterized in that, said measurement module comprises:
Transmitting element does not send the cycle and/or the frequency range of uplink channel measurement reference signal and sends the downlink channel condition information reference signal in user equipment side;
Measure performance element,, carry out the down channel state measurement based on uplink reference signals in cycle and/or the frequency range that user equipment side is sent uplink channel measurement reference signal; When said transmitting element transmitting channel state information reference signals, receive user equipment side and carry out the measurement result that channel status is measured the back, reported based on the downlink channel condition information reference signal.
21. device as claimed in claim 13 is characterized in that, said measurement module comprises:
Transmitting element does not send the cycle and/or the frequency range of uplink channel measurement reference signal and sends the downlink channel condition information reference signal in user equipment side;
Measure performance element,, carry out the up channel state measurement based on uplink channel measurement reference signal in cycle and/or the frequency range that user equipment side is sent uplink channel measurement reference signal; When said transmitting element transmitting channel state information reference signals, the measurement result that reports based on user equipment side obtains the up channel state information.
22., it is characterized in that said configuration module comprises like each described device of claim 13 to 21:
Pre-configured unit, the pattern of pre-configured multiple down channel state measurement;
First notification unit, the sign of every kind of pattern of notifying user equipment side and the content that this pattern comprises after said pre-configured configuration of cells is accomplished;
Dispose performance element, confirm the sign of the pattern of current use;
Second notification unit, the sign that the said configuration performance element of notifying user equipment side is determined.
23. device as claimed in claim 22 is characterized in that, this device is applied to the down channel state measurement of multi-cell cooperating, wherein the pattern of the corresponding a kind of down channel state measurement in each sub-district;
Said first notification unit is to each the subscriber equipment executable operations in each sub-district.
24., it is characterized in that said configuration module comprises like each described device of claim 13 to 21:
The configuration performance element is the pattern of user device configuration current downlink channel state measurement;
Notification unit, the content of the said configuration performance element of notifying user equipment side pattern arranged.
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