CN102377464A - Sending method and device of reference signals for downlink channel state measurement - Google Patents

Abstract

The invention discloses a method for sending downlink channel state measurement reference signals. The base station side configures the downlink channel state measurement mode; The downlink channel state measurement is performed in a way other than the channel state measurement reference signal. By applying the present invention, the base station side can reduce the overhead of the downlink channel state measurement reference signal on the premise of ensuring the downlink channel state measurement.

Description

Method and device for transmitting downlink channel state measurement reference signal

technical field

The present invention relates to reference signals, in particular to a method and device for transmitting downlink channel state measurement reference signals.

Background technique

Downlink channel state measurement reference signals include: Channel State Information Reference Signal (CSIRS, Channel State Information Reference Signal) and Common Reference Signal (CRS, Common Reference Signal). At present, in the formulation process of the LTE-A standard of 3GPP RAN1, the CSIRS transmission method in LTE-A is involved. The existing technical solutions are mainly aimed at the frequency division duplex (FDD, Frequency Division Duplexing) system, requiring the base station to send A user equipment (UE, UserEquipment) sends a CSIRS, and the UE performs downlink channel state measurement based on the CSIRS, and reports the downlink channel state measurement result to the base station. In LTE-A, there may also be a situation where the base station sends a CRS to the UE at each antenna port. At this time, the UE performs downlink channel state measurement based on the CRS and reports the downlink channel state measurement result to the base station.

The above-mentioned existing technical solutions are actually not applicable to all systems. For example, if the existing technical solutions for the FDD system are directly transferred to the Time Division Duplex (TDD, Time Division Duplexing) system, since the TDD system itself has an uplink and downlink channel The characteristics of reciprocity, the base station can measure the downlink channel state based on the uplink reference signal sent by the UE, so in this case, if the base station still sends the downlink channel state measurement reference signal to the UE at each antenna port, it increases the downlink channel status. The channel state measurement reference signal overhead.

Contents of the invention

The invention provides a method for sending a downlink channel state measurement reference signal, and the base station side can reduce the overhead of the downlink channel state measurement reference signal on the premise of ensuring the downlink channel state measurement.

The invention provides a device for sending a downlink channel state measurement reference signal. Based on the device, the base station side can reduce the overhead of the downlink channel state measurement reference signal on the premise of ensuring the downlink channel state measurement.

Technical scheme of the present invention is realized like this:

A method for sending a downlink channel state measurement reference signal, the key lies in that the method includes:

Configure the downlink channel state measurement mode on the base station side;

The base station side reduces the number of downlink channel state measurement reference signals to be sent according to the mode, and performs downlink channel state measurement in a manner other than only based on the downlink channel state measurement reference signals.

A device for transmitting a downlink channel state measurement reference signal, the key lies in that the device includes:

Configure the module to configure the mode of downlink channel state measurement;

The measurement module reduces the number of downlink channel state measurement reference signals sent according to the mode configured by the configuration module, and performs downlink channel state measurement in a manner other than only based on the downlink channel state measurement reference signals.

It can be seen that in the method for sending downlink channel state measurement reference signals of the present invention, since the base station side performs downlink channel state measurement in a manner other than based only on downlink channel state measurement reference signals, it is not necessary to send The same downlink channel state measurement reference signal, so that the base station side can reduce the number of downlink channel state measurement reference signals sent, no matter whether the downlink channel state measurement reference signal is CRS or CSIRS, the overhead of the downlink channel state measurement reference signal is reduced.

Description of drawings

Fig. 1 is the flowchart of the sending method of downlink channel state measurement reference signal in the present invention;

2 is a flowchart of a method for sending a downlink channel state measurement reference signal in Embodiment 1 of the present invention;

FIG. 3 is a flowchart of a method for sending a downlink channel state measurement reference signal in Embodiment 2 of the present invention;

4 is a flowchart of a method for sending a downlink channel state measurement reference signal in Embodiment 3 of the present invention;

5 is a schematic structural diagram of a device for sending a downlink channel state measurement reference signal in the present invention;

FIG. 6 is a schematic structural diagram of an apparatus for sending a downlink channel state measurement reference signal according to Embodiment 4 of the present invention.

Detailed ways

In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the flow chart of the sending method of downlink channel state measurement reference signal among the present invention, and this flow process comprises:

Step 101: The base station side configures a downlink channel state measurement mode.

Step 102: The base station side reduces the number of downlink channel state measurement reference signals to be sent according to the mode, and performs downlink channel state measurement in a manner other than only based on downlink channel state measurement reference signals.

It can be seen that in the method for transmitting downlink channel state measurement reference signals of the present invention, since the base station performs downlink channel state measurement in a manner other than only based on downlink channel state measurement reference signals, it is not necessary to transmit the same method as in the prior art FDD system. Quantity of downlink channel state measurement reference signals, so that the base station side can reduce the number of downlink channel state measurement reference signals sent, no matter the downlink channel state measurement reference signals are CRS or CSIRS, all reduce the overhead of downlink channel state measurement reference signals.

In the present invention, the configuration described in step 101 includes the following two situations:

First, the base station side pre-configures a variety of downlink channel state measurement modes, where each mode has an identifier, and the base station side notifies the UE side of the identifier of each mode and the content included in the mode after the pre-configuration is completed, so that the above steps The configuration in 101 refers to that the base station side selects one of the pre-configured modes as the current downlink channel state measurement mode. At this time, when the base station side notifies the UE side of the mode, it only notifies the UE side of the currently used downlink channel state. The identification of the measurement is enough, and the UE side can know the content included in the mode according to the identification, and then communicate with the base station to perform subsequent downlink channel state measurement operations; further, if the method of the present invention is applied to the measurement requirement scenario of multi-cell coordination, for example Applied in Coordinated Multi Points (CoMP, Coordinated Multi Points), the base station side needs to pre-configure the downlink channel state measurement mode for each cell in the measurement cell set. For example, assuming that there are 3 cells in the CoMP measurement cell set, the base station needs to configure the downlink channel state measurement modes of these 3 cells respectively. A mode that reduces sending downlink channel state measurement reference signals performs downlink channel state measurement, and configures cell 3 to perform downlink channel state measurement in another mode that reduces sending downlink channel state measurement reference signals different from cell 2 .

Second, in step 101, configuration refers to real-time configuration of the current downlink channel state measurement mode on the base station side, and at this time, the base station side needs to directly notify the UE side of the content included in the configured mode. In the following embodiments, the above-mentioned first configuration and notification manner are taken as examples.

Several specific examples of the method of the present invention are given below.

Embodiment one

FIG. 2 is a flow chart of a method for sending a downlink channel state measurement reference signal in Embodiment 1 of the present invention, the process includes:

Step 201: the base station side selects a current downlink channel state measurement mode, and notifies the UE side of the selected mode identifier.

In this step, the current downlink channel state measurement mode includes: the base station side sends CRS and does not send CSIRS, wherein the number of antenna ports for sending CRS is less than the number of antenna ports used for data channel sending; the base station side is based on the uplink channel sent by the UE side The measurement reference signal performs downlink channel state measurement, and the UE side performs other measurements except the downlink channel state measurement based on the CRS, and reports the measurement results to the base station.

Since other measurements except the downlink channel state measurement are performed based on CRS, compared with the downlink channel state measurement based on CRS, the base station side does not need to send a large number of CRS, so the number of antenna ports for sending CRS is smaller than that used for data channel transmission. The number of antenna ports actually reduces the number of CRSs to be sent, and the number of CRSs to be sent on several antenna ports needs to be determined according to the specific requirements of the above-mentioned other measurements. In other applications, it is also possible to make the number of antenna ports for sending CRS equal to the number of antenna ports used for data channel sending, and only send CRS in some resource elements (RE, Resource Element) occupied in the existing mode, which is also Reduced the number of CRS sent.

Step 202: According to the current downlink channel state measurement mode, the base station side sends a CRS, and performs downlink channel state measurement based on the uplink channel measurement reference signal sent by the UE; the base station side receives other measurement results reported by the UE side except the downlink channel state measurement .

In this step, the base station side performs downlink channel state measurement based on the uplink channel measurement reference signal sent by the UE, utilizing the reciprocity characteristics of the uplink and downlink channels. The specific method of measurement is common knowledge in the field, and will not be repeated here. Other measurements other than downlink channel state measurement may include interference measurement, etc. At this time, the CRS only needs to be sent on some antenna ports, or even only needs to be sent on one antenna port.

The specific example in this embodiment is as follows: assuming that the number of antenna ports used for data channel transmission on the base station side is N, the downlink channel state measurement mode includes: sending CRS on n antenna ports, where n<N, the base station side is based on the UE side The transmitted uplink channel measurement reference signal performs downlink channel state measurement, and the UE side performs other measurements except the downlink channel state measurement based on the CRS, and reports the measurement results to the base station side.

The first embodiment provides a mode of measuring the downlink channel state based on the uplink channel measurement reference signal. At this time, other measurements except the downlink channel state measurement can be performed based on the CRS. Of course, other methods can also be used to perform the downlink channel state measurement. other measurements.

Embodiment two

FIG. 3 is a flow chart of a method for sending a downlink channel state measurement reference signal in Embodiment 2 of the present invention, and the process includes:

Step 301: the base station side selects a current downlink channel state measurement mode, and notifies the UE side of the identity of the selected mode.

In this step, the current downlink channel state measurement mode includes: the base station side sends CSIRS and CRS, wherein the number of antenna ports for sending CSIRS and CRS is smaller than the number of antenna ports used for data channel sending; the base station side is based on the uplink channel measurement sent by UE The reference signal performs downlink channel state measurement, and the UE side performs other measurements except the downlink channel state measurement based on CSIRS and CRS, and reports the measurement results to the base station.

Due to performing other measurements except the downlink channel state measurement, the base station side does not need to send a large number of CRS or CSIRS compared to the downlink channel state measurement, so the number of antenna ports for sending CRS and CSIRS is less than that used for data channel transmission The number of antenna ports, in fact, reduces the number of CRS and CSIRS to be sent. Specifically, how many antenna ports are used to send CRS and CSIRS needs to be determined according to the specific requirements of the above other measurements. In other applications, CRS and CSIRS can also be sent on antenna ports equal to the number of antenna ports used for data channel transmission, and each antenna port is only sent on some REs occupied in the existing mode, which also reduces Number of sent CRS and CSIRS.

Step 302: According to the downlink channel state measurement mode, the base station side sends CSIRS and CRS, performs downlink channel state measurement based on the uplink channel measurement reference signal sent by the UE side, and receives other measurement results reported by the UE side except the downlink channel state measurement.

In this step, the base station performs downlink channel state measurement based on the uplink channel measurement reference signal, utilizing the reciprocity characteristics of the uplink and downlink channels, and the specific method of measurement is common knowledge in the field, and will not be repeated here. Other measurements other than downlink channel state measurement may include interference measurement, etc. At this time, CSIRS and CRS only need to be sent on some antenna ports, or even only need to be sent on one antenna port.

The specific example in this embodiment is as follows: Assume that the number of antenna ports used for data channel transmission on the base station side is N, and the downlink channel state measurement mode includes: sending CSIRS at n1 antenna ports and sending CRS at n2 antenna ports, where n1 <N, n2<N, the base station side performs downlink channel state measurement based on the uplink channel reference signal sent by the UE, and the UE side performs other measurements except the downlink channel state measurement based on CSIRS and CRS, and reports the measurement results to the base station.

The second embodiment provides a mode of measuring the downlink channel state based on the uplink channel measurement reference signal. At this time, other measurements except the downlink channel state measurement can be performed based on the CRS and CSIRS, and of course only the downlink channel can be measured based on the CSIRS. Other measurements other than the state measurement, or other measurements other than the downlink channel state measurement based only on the CRS.

In the second embodiment, the base station side may only send the CSIRS, and the UE performs other measurements except the downlink channel state measurement only based on the CSIRS.

Embodiment Three

FIG. 4 is a flow chart of a method for sending a downlink channel state measurement reference signal in Embodiment 3 of the present invention, the process includes:

Step 401: the base station side selects a current downlink channel state measurement mode, and notifies the UE side of the selected mode identifier.

In this step, the content corresponding to the identification of the mode of downlink channel state measurement includes: the base station side does not send the period and/or frequency band of the uplink channel measurement reference signal on the UE side to send CSIRS; the base station side sends the uplink channel measurement reference signal on the UE side The base station side receives the downlink channel state measurement results reported by the UE at the cycle and/or frequency band of the CSIRS sent by itself, based on the uplink channel measurement reference signal sent by the UE side.

Step 402: According to the downlink channel state measurement mode, the base station side sends a CSIRS, performs downlink channel state measurement based on the uplink channel measurement reference signal, and receives the downlink channel state measurement result reported by the UE side.

In this step, the base station performs downlink channel state measurement based on the uplink channel measurement reference signal, utilizing the reciprocity characteristics of the uplink and downlink channels, and the specific method of measurement is common knowledge in the field, and will not be repeated here.

The specific example in this embodiment is as follows: Assume that the base station side configures the CSIRS transmission period as 20 milliseconds, for example, the time point of sending CSIRS is 0 milliseconds, 20 milliseconds, 40 milliseconds, etc., and the UE side sends the time point of the uplink channel measurement reference signal 10 milliseconds, 30 milliseconds, etc., so that the transmission period of the uplink channel measurement reference signal is complementary to the transmission period of the CSIRS. The period for sending the uplink channel measurement reference signal on the UE side, and the base station side performs downlink channel state measurement based on the uplink channel measurement reference signal , the base station side receives the downlink channel state measurement result reported by the UE during the period when the base station itself sends the CSIRS.

The third embodiment provides a complementary mode for performing downlink channel state measurement in the time domain and/or frequency domain. The downlink channel state measurement based on the uplink channel reference signal and the CSIRS are interleaved, which is equivalent to reducing the CSIRS. Quantity sent.

In the third embodiment, the UE side sends the period and/or frequency band of the uplink channel measurement reference signal, and the base station performs uplink channel state measurement based on the uplink channel measurement reference signal. When the base station side sends the channel state information reference signal, the base station side can also The uplink channel state information is obtained based on the measurement result reported by the UE side, that is, the third embodiment also provides an implementation manner for uplink channel state measurement.

The following describes the sending device of the downlink channel state measurement reference signal in the present invention, and the device is located at the base station side.

Fig. 5 is a schematic structural diagram of a device for sending a downlink channel state measurement reference signal in the present invention, the device includes: a configuration module and a measurement module.

The above configuration module configures the downlink channel state measurement mode.

The measurement module, according to the mode configured by the configuration module, reduces the number of downlink channel state measurement reference signals sent, and performs downlink channel state measurement in a manner other than only based on the downlink channel state measurement reference signals.

Several embodiments of the device shown in Fig. 5 are given below.

Embodiment Four

FIG. 6 is a schematic structural diagram of an apparatus for sending a downlink channel state measurement reference signal according to Embodiment 4 of the present invention.

As shown in Figure 6, the device includes a configuration module and a measurement module.

The above configuration module includes: a preconfiguration unit, a first notification unit, a configuration execution unit and a second notification unit.

The above-mentioned pre-configuration unit pre-configures multiple downlink channel state measurement modes.

The above-mentioned first notification unit notifies the UE side of the identity of each mode and the content included in the mode after the configuration of the pre-configuration unit is completed.

The above-mentioned configuration execution unit determines the identifier of the currently used mode.

The second notifying unit notifies the UE side of the identifier determined by the configuration executing unit.

If the device in this embodiment applies downlink channel state measurement coordinated with multiple cells, where each cell corresponds to a mode of downlink channel state measurement, the above-mentioned first notification unit performs operations on each UE side in each cell .

The structure of the above configuration module is only a specific example. In some structures not shown in FIG. In this case, the configuration module includes: a configuration execution unit and a notification unit.

The above configuration execution unit configures the current downlink channel state measurement mode for the UE side.

The notification unit notifies the UE side of the content of the mode configured by the configuration execution unit.

In Embodiment 4, the measurement module includes: a sending unit and a measurement execution unit.

The above sending unit does not send the channel state information reference signal.

The above-mentioned measurement execution unit performs downlink channel state measurement based on the uplink measurement reference signal sent by the UE side.

Further, the above-mentioned sending unit is further used to send CRS, the number of antenna ports used for sending CRS is smaller than the number of antenna ports used for data channel sending; the above-mentioned measurement execution unit is further used for receiving UE to perform downlink channel state measurement based on the common reference signal Reported measurement results after other measurements. In other application scenarios, in order to reduce the number of CRS sent by the sending unit here, another method can also be adopted, that is, the number of antenna ports for sending CRS is equal to the number of antenna ports used for data channel sending, but in each port It is sent on some of the REs, which is also equivalent to reducing the number of sent CRSs.

Embodiment 4 provides that the base station side does not send CSIRS but sends CRS, the base station side performs downlink channel state measurement based on the uplink channel measurement reference signal sent by the UE, and the UE side performs other measurements except the downlink channel state measurement based on the CRS, and Report the measurement results to the base station side.

Embodiment five

The configuration modules in the device of this embodiment are the same in structure and function as shown in FIG. 6 .

The measurement module in the device of this embodiment has the same structure as that shown in FIG. 6 , but performs different functions, which are described in detail as follows.

The sending unit is configured to send the CSIRS, the number of antenna ports used for sending the CSIRS is smaller than the number of antenna ports used for data channel sending.

The measurement executing unit performs downlink channel state measurement based on the uplink measurement reference signal sent by the UE side.

Further, the sending unit in this embodiment is further used to send CRS, and the number of antenna ports used for sending CRS is smaller than the number of antenna ports used for data channel sending; the measurement execution unit in this embodiment is further used to receive UE side based on CRS and/or Or the measurement results reported by the CSIRS after performing other measurements except the downlink channel state measurement. In other application scenarios, in order to reduce the number of CRS sent by the sending unit here, another method can also be adopted, that is, the number of antenna ports used to send CRS is equal to the number of antenna ports used for data channel sending, but only at each port It is sent on some of the REs, which is also equivalent to reducing the number of sent CRSs.

In Embodiment 5, the base station side performs downlink channel state measurement based on the uplink channel measurement reference signal sent by the UE, and the UE side performs other measurements except the downlink channel state measurement based on CRS and/or CSIRS, and reports the measurement results to the base station side.

In the fifth embodiment, the sending unit may only send the CSIRS, and the measurement execution unit may also perform downlink channel state measurement based on the uplink channel measurement reference signal, and at the same time, the receiving UE side only performs other measurements except the downlink channel state measurement based on the CSIRS. , the reported measurement results.

Embodiment six

The configuration modules in the device of this embodiment are the same in structure and function as shown in FIG. 6 .

The measurement module in the device of this embodiment has the same structure as that shown in FIG. 6 , but performs different functions, which are described in detail as follows.

The sending unit is configured to send CSIRS in the period and/or frequency band where the UE side does not send the uplink channel measurement reference signal;

The measurement execution unit transmits the period and/or frequency band of the uplink channel measurement reference signal on the UE side, and performs downlink channel state measurement based on the uplink reference signal; when the sending unit sends CSIRS, the receiving UE side performs the measurement based on the downlink channel state information reference signal The measurement result reported after downlink channel state measurement.

In this embodiment, the base station side alternately performs the downlink channel state measurement based on the uplink channel measurement reference signal sent by the UE and the CSIRS.

In addition to downlink channel state measurement, based on the reciprocity of uplink and downlink channels, the device in the present invention can also be extended to the measurement of uplink channel state. At this time, the measurement module in the device includes: a sending unit and a measurement execution unit.

The above-mentioned sending unit sends the downlink channel state information reference signal in the period and/or frequency band when the UE side does not send the uplink channel measurement reference signal.

The measurement execution unit above transmits the period and/or frequency band of the uplink channel measurement reference signal on the UE side, and performs uplink channel state measurement based on the uplink channel measurement reference signal; when the sending unit sends the channel state information reference signal, based on the UE side report The uplink channel state information is obtained from the measurement results.

To sum up, the above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the 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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