CN103891371A

CN103891371A - Pilot signal configuration method, serving base station, and user equipment

Info

Publication number: CN103891371A
Application number: CN201280001572.0A
Authority: CN
Inventors: 吴作敏; 治欣慰; 杨建兵; 夏亮; 刘江华; 大卫·马瑞泽
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-08-13
Filing date: 2012-08-13
Publication date: 2014-06-25
Anticipated expiration: 2032-08-13
Also published as: CN103891371B; WO2014026320A1

Abstract

The present invention provides a pilot signal configuration method, a serving base station, and a user equipment (UE). The method comprises: a serving base station configuring at least two channel-state information reference signal (CSI-RS) resources for a UE, and notifying the UE that the at least two CSI-RS resources are configured by the serving base station; and the serving base station sending a demodulation reference signal (DMRS) to the UE, and notifying the UE that the DMRS is configured by the serving base station. The embodiments of the present invention can solve the problem that time frequency synchronization is not accurate enough when the foregoing three pilot signals do not come from a same station.

Description

Pilot signal configuration method, serving base station, and user equipment

Plant method, serving BS and the user equipment technical field of configuration pilot signal

The present invention relates to wireless communication technology, more particularly to a kind of method, serving BS and user equipment for configuring pilot signal.Background technology

In senior long term evolution（Long Term Evolution Advanced, LTE-A) in system, enhanced base station（Enhanced NodeB, eNB) public reference signal can be configured（Cell-Specific Reference Signal, CRS), and/or demodulated reference signal（Demodulation Reference Signal, DMRS) and/or the pilot signal such as channel state information reference signals (Channel- State Information Reference Signal, CSI-RS) to user equipment（User Equipment, UE), DMRS is referred to as user's demodulated reference signal（UE-Specific Reference Signal).Under normal circumstances, UE can receive the CRS sequences of serving cell transmission after synchronous and cell searching is completed, and complete CSI measurement of correlation come the complete CRS sequences configured according to eNB or CSI-RS sequences by CRS sequences and report eNB.ENB to UE when scheduling of resource is carried out, the metrical information that can be reported with reference to UE, and dispatches Physical Downlink Shared Channel to UE with a certain transmission mode（Physical Downlink Shared Channel, PDSCH), UE can be demodulated after downlink data packet has been detected according to CRS sequences or DMRS sequence pairs PDSCH.

When eNB to UE is configured with CRS, tri- kinds of pilot signals of CSI-RS and DMRS, UE completes CSI measurement of correlations according to CSI-RS, when completing PDSCH demodulation according to DMRS, if above-mentioned three kinds of pilot signals come from same eNB, UE can accurately be synchronized to the eNB according to CRS sequences.But, by macro base station and Remote Radio Unit（Remote Radio Head, R H) composition coordinate multipoint transmission/reception (Coordinated Multiple Point transmission/reception, CoMP) under scene, possible macro base station and RRH all have identical cell number（Cell ID ).In such a scenario, macro base station necessarily sends CRS sequences, and R H, which may be sent, may not also send CRS sequences, therefore, superposition sequence of the CRS sequences that UE is received from macro base station, or macro base station and the CRS sequences of R H transmissions.When UE serving BS is that some R H, i.e. R H send DMRS and PDSCH for UE, if UE still carries out Time and Frequency Synchronization using the CRS received, macro base station will be synchronized to or folded Plus the corresponding website of sequence, and can not accurately trace on the R H for its service, it can so cause UE demodulation performances to be deteriorated.The content of the invention

In view of this, the embodiments of the invention provide a kind of method, serving BS and user equipment for configuring pilot signal, the problem of Time and Frequency Synchronization to solve to exist when above-mentioned three kinds of pilot signals are not from same base station is not accurate enough.

First aspect there is provided it is a kind of configure pilot signal method, including：

One serving BS is that a user equipment (UE) configures at least two channel state information reference signals CSI-RSs, and notifies that at least two CSI-RSs are configured by the serving BS described in the UE；

The serving BS sends demodulated reference signal DMRS to the UE, and notifies that DMRS is configured by the serving BS described in the UE.

In the first possible implementation of first aspect,

In at least two CSI-RS, at least two CSI-RSs are mapped to different orthogonal frequency division multiplex OFDM symbols；Or,

The subframe indicated by subframe configuration information that at least two CSI-RS resources include is a subframe or two subframes.

It is described to notify that at least two CSI-RSs are configured by the serving BS described in the UE in second of possible implementation with reference to the first possible implementation of first aspect or first aspect, including：

The first radio resource control RRC signaling is sent to the UE, wherein, first RRC signaling includes：

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes at least two CSI-RS, so that the CSI-RS that first RRC signaling includes is determined as what is configured by the serving BS by the UE；Or,

At least two CSI-RS configuration information units, each CSI-RS configuration information unit at least two CSI-RS configuration informations unit includes a CSI-RS resource at least two CSI-RS, and first configured information, and first configured information at least two CSI-RS configuration informations unit is identical,, will be described so that the UE is according to the configured information of identical first At least two CSI-RSs are determined as what is configured by the serving BS；Or, one CSI-RS configuration information unit, the CSI-RS configuration information unit includes the first CSI-RS resources and at least one first unpaired message, each first unpaired message at least one described first unpaired message is used for the running time-frequency resource positional information for indicating the second CSI-RS in a Physical Resource Block PRB, or each first unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS, so that the 2nd CSI-RS resources that first CSI-RS and first unpaired message are indicated are determined as what is configured by the serving BS by the UE, the first CSI-RS resources are any one CSI-RS at least two CSI-RS resources, second CSI-RS is any one CSI-RS different from first CSI-RS at least two CSI-RS, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

It is described to notify that DMRS is configured by the serving BS described in the UE in the third possible implementation with reference to first aspect or any possible implementation of first aspect, including：Configured by signaling DMRS described in the UE to the first Downlink Control Information DCI of UE transmissions by the serving BS, wherein, the first DCI signalings include the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and at least two CSI-RS to be that the serving BS is configured to the UE；Or

Notify that DMRS is configured by the serving BS described in the UE by sending the first RRC signaling to the UE, wherein, first RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and at least two CSI-RS to be that the serving BS is configured to the UE；Or

Notify that DMRS is configured by the serving BS described in the UE by sending the second RRC signaling to the UE, wherein, second RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and described at least two CSI-RS to be that the serving BS is configured to the UE.

It is described notify at least two CSI-RSs described in the UE to be matched somebody with somebody by the serving BS in the 4th kind of possible implementation with reference to the first possible implementation of first aspect or first aspect Before putting, methods described also includes：RRC signaling is sent to the UE, wherein, the RRC signalings include the first CSI-RS, and first CSI-RS is any one CSI-RS at least two CSI-RS resources；

It is described to notify that at least two CSI-RSs are configured by the serving BS described in the UE, including：The second Downlink Control Information DCI signalings are sent to the UE, wherein, the 2nd DCI signalings include at least one second unpaired message, each second unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS in a Physical Resource Block PRB at least one described second unpaired message, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS, so that second CSI-RS that first CSI-RS and second unpaired message are indicated is determined as what is configured by the serving BS by the UE, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

It is described to send demodulated reference signal DMRS to the UE in the 5th kind of possible implementation with reference to the 4th kind of possible implementation of first aspect, and notify that DMRS is configured by the serving BS described in the UE, including：

With the 2nd DCI signaling identical subframes in, the DMRS is sent to the UE so that the UE is configured the DMRS sent at least two CSI-RS indicated by the 2nd DCI signalings and the subframe by the serving BS.

Second aspect there is provided it is a kind of configure pilot signal method, including：

Serving BS sends the first Downlink Control Information DCI signalings to the first user equipment (UE), the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;

The serving BS sends the first DMRS to the first UE and does not send the PDSCH.

In the first possible implementation of second aspect,

The first DCI signalings of the transmission, including：

After the first UE accesses are detected, the first DCI signalings are sent；Or, the up signaling that the first UE is sent is received, the first DCI signalings are sent according to the up signaling. It is described to send the first DMRS to the first UE and do not send the PDSCH in second of possible implementation with reference to the first possible implementation of second aspect or second aspect, including：Often send once after the first DCI signalings, periodically send the first DMRS and do not send the PDSCH;Or,

The first DCI signalings are often sent once, once the first DMRS is sent and does not send described

PDSCH。

With reference to second aspect or any possible implementation of second aspect, in the third possible implementation, the serving BS sends the first DMRS and do not send the PDSCH to the first UE also to be included：

The serving BS sends the first DMRS to the first UE and does not send the PDSCH, the serving BS sends the 2nd DMRS on the corresponding running time-frequency resources of the first DMRS to the 2nd UE, while the serving BS sends corresponding 2nd PDSCH of the 2nd DMRS to the 2nd UE.

With reference to second aspect or any possible implementation of second aspect, in the 4th kind of possible implementation, after the serving BS sends the first DMRS and do not send the PDSCH to the first UE, methods described also includes：

The 3rd DMRS for sending the 3rd PDSCH to the first UE and being sent simultaneously with the 3rd PDSCH, so that the first UE demodulates the 3rd PDSCH according to the 3rd DMRS.

With reference to the 4th kind of possible implementation of second aspect, in the 5th kind of possible implementation, before the serving BS sends the first DMRS and does not send the PDSCH to the first UE, or, the serving BS sends the first DMRS to the first UE and not sent in the PDSCH, and methods described also includes：The first virtual subdistrict number parameter for generating the first DMRS is sent to the first UE；

The 3rd DMRS for sending the 3rd PDSCH to the first UE and being sent with the 3rd PDSCH simultaneously before, or, in the 3rd DMRS for sending the 3rd PDSCH to the first UE and being sent with the 3rd PDSCH simultaneously, methods described also includes：The second virtual subdistrict number parameter for generating the 3rd DMRS is sent to the first UE,

Wherein, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter, so that the UE knows that the first DMRS and the 3rd DMRS is that the serving BS is configured according to identical the first virtual subdistrict number parameter and the virtual number parameter of second community. With reference to the 4th kind of possible implementation of second aspect, in the 6th kind of possible implementation, the 3rd PDSCH is sent to the first UE and with the 3rd PDSCH while before the 3rd DMRS sent, or send the 3rd PDSCH and with the 3rd PDSCH while in the 3rd DMRS sent, methods described also includes to the first UE：The serving BS sends radio resource control RRC signaling to the first UE, the RRC signaling includes the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or,

The 3rd PDSCH is sent to the first UE and with the 3rd PDSCH while before the 3rd DMRS sent, or send the 3rd PDSCH and with the 3rd PDSCH while in the 3rd DMRS sent, methods described also includes to the first UE：Also include the second configured information in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or,

The 3rd PDSCH is sent to the first UE and with the 3rd PDSCH while before the 3rd DMRS sent, or send the 3rd PDSCH and with the 3rd PDSCH while in the 3rd DMRS sent, methods described also includes to the first UE：The serving BS sends the 2nd DCI signalings to the first UE, the 2nd DCI signalings include the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information.

The third aspect there is provided it is a kind of configure pilot signal method, including：

One user equipment (UE) knows that at least two channel state information reference signals CSI-RSs of a serving BS configuration, and at least two CSI-RS are configured by the serving BS；The UE receives the demodulated reference signal DMRS that the serving BS is sent, and knows that the DMRS is configured by the serving BS.

In the first possible implementation of the third aspect,

The UE knows that at least two CSI-RSs of serving BS configuration, and at least two CSI-RS are configured by the serving BS, including：

UE receives the first radio resource control RRC signaling that the serving BS is sent, wherein, it is described First RRC signaling includes：

At least two CSI-RS configuration information units, each CSI-RS configuration information unit at least two CSI-RS configuration informations unit includes a CSI-RS resource at least two CSI-RS, and first configured information, and first configured information at least two CSI-RS configuration informations unit is identical, so that the UE is according to the configured information of identical first, at least two CSI-RS is determined as what is configured by the serving BS；Or,

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes the first CSI-RS resources and at least one first unpaired message, each first unpaired message at least one described first unpaired message is used for the running time-frequency resource positional information for indicating the second CSI-RS in a Physical Resource Block PRB, or each first unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS, so that the 2nd CSI-RS resources that first CSI-RS and first unpaired message are indicated are determined as what is configured by the serving BS by the UE, the first CSI-RS resources are any one CSI-RS at least two CSI-RS resources, second CSI-RS is any one CSI-RS different from first CSI-RS at least two CSI-RS, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

It is described to know that the DMRS is configured by the base station in second of possible implementation with reference to the first possible implementation of the third aspect, including：

Receive the first Downlink Control Information DCI signalings that the serving BS is sent, the first DCI signalings include the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, knows that the DMRS and at least two CSI-RS are that the serving BS is configured according to the first DCI signalings；Or

Receive the first RRC signaling that the serving BS is sent, first RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS resources, knows that the DMRS and at least two CSI-RS are that the serving BS is configured according to the first RRC signalings； Or

Receive the second RRC signaling that the serving BS is sent, second RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS resources, knows that the DMRS and at least two CSI-RS are that the serving BS is configured according to the 2nd RRC signalings.

With reference to the third aspect, in the third possible implementation, the at least two channel state information reference signals CSI-RSs for knowing a serving BS configuration, and at least two CSI-RS resources are configured by the serving BS, including：

The RRC signaling that the serving BS is sent is received, wherein, the RRC signaling includes the first CSI-RS, and first CSI-RS is any one CSI-RS at least two CSI-RS；

Receive the 2nd DCI signalings that the serving BS is sent, wherein, the 2nd DCI signalings include at least one second unpaired message, each second unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to the first CSI-RS resources in a Physical Resource Block PRB at least one described second unpaired message, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS, other CSI-RS parameters of the first CSI-RS resources and the 2nd CSI-RS resource sharings in addition to running time-frequency resource positional information；

The 2nd CSI-RS resources that first CSI-RS and second unpaired message are indicated are determined as what is configured by the serving BS.

It is described to receive the DMRS that the serving BS is sent in the 4th kind of possible implementation in the third possible implementation with reference to the third aspect, and know that the DMRS is configured by the serving BS, including：

With the 2nd DCI signaling identical subframes in, receive the DMRS that the serving BS is sent;

The DMRS sent at least two CSI-RS indicated by the 2nd DCI signalings and the subframe is defined as the serving BS configuration.

4th one side there is provided it is a kind of configure pilot signal method, including：

User equipment (UE) receives the first Downlink Control Information DCI signalings that serving BS is sent, described the One DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;

The UE receives the first DMRS that the serving BS is sent, and the first DMRS is sent when different from PDSCH.

In the first possible implementation of fourth aspect,

Also include：

The UE receives the 3rd PDSCH that the serving BS is sent and the 3rd DMRS sent simultaneously with the 3rd PDSCH;

The UE demodulates the 3rd PDSCH according to the 3rd DMRS.

With reference to the first possible implementation of fourth aspect, in second of possible implementation, in addition to：

The UE receives the first virtual subdistrict number parameter for being used to generate the first DMRS that the serving BS is sent, and for generating the second virtual subdistrict number parameter of the 3rd DMRS, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter；

The UE the first virtual subdistrict number parameter and the virtual number parameter of the second community according to identical know that the first DMRS and the 3rd DMRS is that the serving BS is configured.

With reference to the first possible implementation of fourth aspect, in the third possible implementation, in addition to：

The UE receives the radio resource control RRC signaling that the serving BS is sent, and the RRC signalings include the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；The UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, also include the second configured information in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, and the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or,

The UE receives the 2nd DCI signalings that the serving BS is sent, and the 2nd DCI signalings include the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；The UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information. There is provided a kind of serving BS in terms of 5th, including：

Configuration module, for configuring at least two channel state information reference signals CSI-RSs for a user equipment (UE), and notifies at least two CSI-RSs described in the UE to be by the moon good business base station configuration；

First sending module, for sending demodulated reference signal DMRS to the UE, and notifies that DMRS is configured by the serving BS described in the UE.

In the first possible implementation of the 5th aspect,

In at least two CSI-RS of the configuration module configuration, at least two CSI-RS resource impacts to different orthogonal frequency division multiplex OFDM symbols；Or,

The subframe indicated by subframe configuration information that at least two CSI-RS resources include is subframe, or two subframes.

With reference to the 5th aspect or the 5th aspect the first possible implementation, in second of possible implementation, the configuration module specifically for：

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes the first CSI-RS resources and at least one first unpaired message, each first unpaired message at least one described first unpaired message is used for the running time-frequency resource positional information for indicating the second CSI-RS in a Physical Resource Block PRB, or each first unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS, so that the 2nd CSI-RS resources that first CSI-RS and first unpaired message are indicated are determined as what is configured by the serving BS by the UE, the first CSI-RS resources are any one at least two CSI-RS resources

10 CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS at least two CSI-RS, and first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

With reference to second of possible implementation of the 5th aspect, in the third possible implementation, in addition to：

Second sending module, for being configured by signaling DMRS described in the UE to the first Downlink Control Information DCI of UE transmissions by the serving BS, wherein, the first DCI signalings include the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and at least two CSI-RS to be that the serving BS is configured to the UE；Or notify that DMRS is configured by the serving BS described in the UE by sending the first RRC signaling to the UE, wherein, first RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and at least two CSI-RS to be that the serving BS is configured to the UE；Or

With reference to the 5th aspect or the 5th aspect the first possible implementation, in the 4th kind of possible implementation, the configuration module specifically for：

RRC signaling is sent to the UE, wherein, the RRC signaling includes the first CSI-RS, and first CSI-RS is any one CSI-RS resource at least two CSI-RS；

The second Downlink Control Information DCI signalings are sent to the UE, wherein, the 2nd DCI signalings include at least one second unpaired message, each second unpaired message is used to indicate running time-frequency resource positional information of the 2nd CSI-RS resources relative to first CSI-RS in a Physical Resource Block PRB at least one described second unpaired message, or, each second unpaired message is used to indicating the running time-frequency resource positional information of second CSI-RS, second CSI-RS for it is described at least

1 1 Any one CSI-RS different from first CSI-RS in the CSI-RS of two, so that second CSI-RS that first CSI-RS and second unpaired message are indicated is determined as what is configured by the serving BS by the UE, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

With reference to the 5th aspect the 4th kind of possible implementation, in the 5th kind of possible implementation, first sending module specifically for：

There is provided a kind of serving BS in terms of 6th, including：

First sending module, for sending the first Downlink Control Information DCI signalings to the first user equipment (UE), the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;

Second sending module, for sending the first DMRS to the first UE and not sending the PDSCH.

In the first possible implementation of the 6th aspect,

First sending module specifically for：

After the first UE accesses are detected, the first DCI signalings are sent；Or, the up signaling that the first UE is sent is received, the first DCI signalings are sent according to the up signaling.

With reference to the 6th aspect or the 6th aspect the first possible implementation, in second of possible implementation, second sending module specifically for：

Often send once after the first DCI signalings, periodically send the first DMRS and do not send the PDSCH;Or,

The first DCI signalings are often sent once, once the first DMRS is sent and does not send the PDSCH.

With reference to the 6th aspect or any possible implementation of the 6th aspect, in the third possible implementation, 3rd sending module, for sending the 2nd DMRS to the 2nd UE on the corresponding running time-frequency resources of the first DMRS, while the serving BS sends corresponding 2nd PDSCH of the 2nd DMRS to the 2nd UE. With reference to the 6th aspect or any possible implementation of the 6th aspect, in the 4th kind of possible implementation, in addition to：

4th sending module, for the 3rd DMRS for sending the 3rd PDSCH to the first UE and being sent with the 3rd PDSCH simultaneously, so that the first UE demodulates the 3rd PDSCH according to the 3rd DMRS.

With reference to the 4th kind of possible implementation of the 6th aspect, in the 5th kind of possible implementation, in addition to：

5th sending module, for sending the first virtual subdistrict number parameter for generating the first DMRS to the first UE；And, the second virtual subdistrict number parameter for generating the 3rd DMRS is sent to the first UE, wherein, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter, so that the UE knows that the first DMRS and the 3rd DMRS is that the serving BS is configured according to identical the first virtual subdistrict number parameter and the virtual number parameter of second community.

With reference to the 4th kind of possible implementation of the 6th aspect, in the 6th kind of possible implementation, also include the second configured information in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, the serving BS also includes：

6th sending module, for sending radio resource control RRC signaling to the first UE, the RRC signaling includes the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, the 2nd DCI signalings are sent to the first UE, the 2nd DCI signalings include the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information.

There is provided a kind of UE in terms of 7th, including：

First knows module, and at least two channel state information reference signals CSI-RSs for knowing a serving BS configuration, and at least two CSI-RS are configured by the serving BS；

13 Second knows module, for receiving the demodulated reference signal DMRS that the serving BS is sent, and knows that the DMRS is configured by the serving BS.

In the first possible implementation of the 7th aspect,

Described first know module specifically for：

The first radio resource control RRC signaling that the serving BS is sent is received, wherein, first RRC signaling includes：

With reference to the 7th aspect the first possible implementation, in second of possible implementation, described second know module specifically for：

Receive the first Downlink Control Information DCI signalings that the serving BS is sent, the first DCI signalings include the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, knows that the DMRS and at least two CSI-RS are the serving BSs according to the first DCI signalings Configuration；Or

Receive the first RRC signaling that the serving BS is sent, first RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS resources, knows that the DMRS and at least two CSI-RS are that the serving BS is configured according to the first RRC signalings；Or

Receive the second RRC signaling that the serving BS is sent, second RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS resources, knows that the DMRS and at least two CSI-RS are that the serving BS is configured according to the 2nd RRC signalings..

The 7th aspect the third possible implementation in, described first know module specifically for：The RRC signaling that the serving BS is sent is received, wherein, the RRC signaling includes the first CSI-RS, and first CSI-RS is any one CSI-RS at least two CSI-RS；

With reference to the 7th aspect the third possible implementation, in the 4th kind of possible implementation, described second know module specifically for：

15 Eighth aspect there is provided a kind of UE, including：

First receiving module, the first Downlink Control Information DCI signalings for receiving serving BS transmission, the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;

Second receiving module, for receiving the first DMRS that the serving BS is sent, the first DMRS is sent when different from PDSCH.

In the first possible implementation of eighth aspect,

3rd receiving module, for receiving the 3rd PDSCH of the serving BS transmission and with the 3rd PDSCH while the 3rd DMRS sent;

Demodulation module, for demodulating the 3rd PDSCH according to the 3rd DMRS.

With reference to the first possible implementation of eighth aspect, in second of possible implementation, in addition to：

4th receiving module, for receiving the first virtual subdistrict number parameter for being used to generate the first DMRS that the serving BS is sent, and for generating the second virtual subdistrict number parameter of the 3rd DMRS, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter；First determining module, knows that the first DMRS and the 3rd DMRS is that the serving BS is configured for the first virtual subdistrict number parameter according to identical and the virtual number parameter of the second community.

With reference to the first possible implementation of eighth aspect, in the third possible implementation, in addition to：

5th receiving module, for receiving the radio resource control RRC signaling that the serving BS is sent, the RRC signaling includes the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；The UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, the 2nd DCI signalings that the serving BS is sent are received, the 2nd DCI signalings include the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；The UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, also include the second configured information in the first DCI signalings, second configured information is used to indicating that the first DMRS and the 3rd DMRS to be serving BS configurations, the UE knows described the according to second configured information One DMRS and the 3rd DMRS are the serving BS configurations；

Second determining module, for knowing that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information.

There is provided a kind of serving BS in terms of 9th, including：

Processor, for configuring at least two channel state information reference signals CSI-RSs for a user equipment (UE)；

Transmitter, for at least two CSI-RS to be sent into the UE, and notify that at least two CSI-RSs are configured by the serving BS described in the UE, and demodulated reference signal DMRS is sent to the UE, and notify that DMRS is configured by the serving BS described in the UE.

In the first possible implementation of the 9th aspect,

In at least two CSI-RS of the processor configuration, at least two CSI-RSs are mapped to different orthogonal frequency division multiplex OFDM symbols；Or,

With reference to the 9th aspect or the 9th aspect the first possible implementation, in second of possible implementation, the transmitter specifically for：

One CSI-RS configuration information unit, each first unpaired message that the CSI-RS configuration information unit is included in the first CSI-RS resources and at least one first unpaired message, at least one described first unpaired message is used for the running time-frequency resource position for indicating the second CSI-RS in a Physical Resource Block PRB

17 Confidence ceases, or each first unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS, so that the 2nd CSI-RS resources that first CSI-RS and first unpaired message are indicated are determined as what is configured by the serving BS by the UE, the first CSI-RS resources are any one CSI-RS at least two CSI-RS resources, second CSI-RS is any one CSI-RS different from first CSI-RS at least two CSI-RS, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

With reference to the 9th aspect second of possible implementation, in the third possible implementation, the transmitter also particularly useful for：

Configured by signaling DMRS described in the UE to the first Downlink Control Information DCI of UE transmissions by the serving BS, wherein, the first DCI signalings include the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and at least two CSI-RS to be that the serving BS is configured to the UE；Or

With reference to the 9th aspect or the 9th aspect the first possible implementation, in the 4th kind of possible implementation, the transmitter specifically for：

The second Downlink Control Information DCI signalings are sent to the UE, wherein, the 2nd DCI signalings

18 Include at least one second unpaired message, each second unpaired message is used to indicate running time-frequency resource positional information of the 2nd CSI-RS resources relative to first CSI-RS in a Physical Resource Block PRB at least one described second unpaired message, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS, so that second CSI-RS that first CSI-RS and second unpaired message are indicated is determined as what is configured by the serving BS by the UE, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

With reference to the 9th aspect the 4th kind of possible implementation, in the 5th kind of possible implementation, the transmitter also particularly useful for：

There is provided a kind of serving BS in terms of tenth, including：

Processor, for generating the first Downlink Control Information DCI signalings and the first demodulated reference signal DMRS;

Transmitter, for sending the first Downlink Control Information DCI signalings to the first user equipment (UE), the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS.

In the first possible implementation of the tenth aspect,

The transmitter specifically for：

With reference to the tenth aspect or the tenth aspect the first possible implementation, in second of possible implementation, the transmitter also particularly useful for：

The first DCI signalings are often sent once, once the first DMRS is sent and does not send the PDSCH. With reference to the tenth aspect or any possible implementation of the tenth aspect, in the third possible implementation, the transmitter is additionally operable to：

With reference to the tenth aspect or any possible implementation of the tenth aspect, in the 4th kind of possible implementation, the transmitter is additionally operable to：

With reference to the 4th kind of possible implementation of the tenth aspect, in the 5th kind of possible implementation, the transmitter is additionally operable to：

The first virtual subdistrict number parameter for generating the first DMRS is sent to the first UE；The second virtual subdistrict number parameter for generating the 3rd DMRS is sent to the first UE；Wherein, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter, so that the UE knows that the first DMRS and the 3rd DMRS is that the serving BS is configured according to identical the first virtual subdistrict number parameter and the virtual number parameter of second community.

With reference to the 4th kind of possible implementation of the tenth aspect, in the 6th kind of possible implementation, the transmitter is additionally operable to：

Radio resource control RRC signaling is sent to the first UE, the RRC signaling includes the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, also include the second configured information in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or,

The 2nd DCI signalings are sent to the first UE, the 2nd DCI signalings include the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows the first DMRS according to second configured information

20 It is the serving BS configuration with the 3rd DMRS.

Tenth one side there is provided a kind of UE, including：

Receiver, for receiving at least two channel state information reference signals CSI-RSs of same serving BS configuration, and receives the demodulated reference signal DMRS that the serving BS is sent;

Processor, for knowing that at least two channel state information reference signals CSI-RS is the serving BS configuration, and knows that the DMRS is the serving BS configuration.

In the first possible implementation of the tenth one side,

The receiver specifically for

With reference to the first possible implementation of the tenth one side, in second of possible implementation, the first Downlink Control Information DCI signalings that the receiver is sent specifically for the reception serving BS, The first DCI signalings include the second configured information, and second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS；The processor according to the first DCI signalings specifically for knowing that the DMRS and at least two CSI-RS are that the serving BS is configured；

Or,

The receiver is specifically for receiving the first RRC signaling that the serving BS is sent, first RRC signaling includes the second configured information, and second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS；The processor according to first RRC signaling specifically for knowing that the DMRS and at least two CSI-RS are that the serving BS is configured；

Or,

The receiver is specifically for receiving the second RRC signaling that the serving BS is sent, second RRC signaling includes the second configured information, and second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS；The processor according to second RRC signaling specifically for knowing that the DMRS and at least two CSI-RS are that the serving BS is configured.

With reference to the third possible implementation of the tenth one side, the receiver is specifically for receiving the RRC signaling that the serving BS is sent, wherein, the RRC signaling includes the first CSI-RS, and first CSI-RS is any one CSI-RS at least two CSI-RS；Receive the 2nd DCI signalings that the serving BS is sent, wherein, the 2nd DCI signalings include at least one second unpaired message, each second unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS in a Physical Resource Block PRB at least one described second unpaired message, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS, other CSI-RS parameters of the first CSI-RS resources and the 2nd CSI-RS resource sharings in addition to running time-frequency resource positional information；

The processor by second CSI-RS of the first CSI-RS resources and second unpaired message instruction specifically for being determined as what is configured by the serving BS.

With reference to the third possible implementation of the tenth one side, in the 4th kind of possible implementation, The receiver specifically for the 2nd DCI signaling identical subframes in, receive the DMRS that the serving BS is sent;

The processor by the DMRS sent at least two CSI-RS resources indicated by the 2nd DCI signalings and the subframe specifically for being defined as the serving BS configuration.

There is provided a kind of UE in terms of 12nd, including：

Receiver, the first Downlink Control Information DCI signalings for receiving serving BS transmission, the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;And, receive the first DMRS that the serving BS is sent, the first DMRS is sent when different from PDSCH；Processor, the first DCI signalings and the first DMRS are deposited for Slow.

In the first possible implementation of the 12nd aspect,

The receiver is additionally operable to receive the 3rd PDSCH that the serving BS is sent and the 3rd DMRS sent simultaneously with the 3rd PDSCH;

The processor is additionally operable to demodulate the 3rd PDSCH according to the 3rd DMRS.

With reference to the first possible implementation of the 12nd aspect, in second of possible implementation, the receiver is additionally operable to：Receive the first virtual subdistrict number parameter for being used to generate the first DMRS that the serving BS is sent, and for generating the second virtual subdistrict number parameter of the 3rd DMRS, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter；

The processor is additionally operable to the first virtual subdistrict number parameter and the virtual number parameter of the second community according to identical and knows that the first DMRS and the 3rd DMRS is that the serving BS is configured.With reference to second of possible implementation of the 12nd aspect, in the third possible implementation, the receiver is additionally operable to：The radio resource control RRC signaling that the serving BS is sent is received, the RRC signaling includes the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；Or, the second configured information is also included in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；Or, the 2nd DCI signalings that the serving BS is sent are received, the 2nd DCI signalings include the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；

The processor is additionally operable to know the first DMRS and described according to second configured information Three DMRS are the serving BS configurations.

Pass through above-mentioned technical proposal, same serving BS is at least two CSI-RSs that same UE configures co-sited, and at least two CSI-RS and DMRS co-sited, it is the PDSCH co-sited that the UE is dispatched namely with this month good business base station, therefore, when UE carries out Time and Frequency Synchronization using at least two CSI-RS resources of the co-sited, serving BS can be synchronized to, the accuracy of Time and Frequency Synchronization is improved, and then improves demodulation performance；Or, serving BS is that UE configures the DMRS not sent simultaneously with PDSCH, UE can carry out Time and Frequency Synchronization according to the DMRS not sent with PDSCH simultaneously, because this is not also to be sent for the UE serving BSs for dispatching PDSCH with the PDSCH DMRS sent simultaneously, serving BS can be synchronized to, the accuracy of Time and Frequency Synchronization is improved, and then improves demodulation performance.Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, the accompanying drawing used required in being described below to embodiment is briefly described, apparently, drawings in the following description are some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 configures the schematic flow sheet of the embodiment of method one of pilot signal for the present invention；

Fig. 2 is the running time-frequency resource schematic diagram shared by CSI-RS sequences in the embodiment of the present invention；

Fig. 3 is the running time-frequency resource schematic diagram shared by DMRS and PDSCH in the embodiment of the present invention；Running time-frequency resource schematic diagram shared by CSI-RS sequences corresponding when being three CSI-RSs of configuration co-sited in the embodiment of the present invention Fig. 4；

Fig. 5 is schematic diagram of the positional information in two adjacent sub-frames corresponding to two CSI-RSs of configuration co-sited in the embodiment of the present invention；

Fig. 6 configures the schematic flow sheet of another embodiment of method of pilot signal for the present invention；

Fig. 7 is the corresponding system schematics of Fig. 6；

Fig. 8 configures the schematic flow sheet of another embodiment of method of pilot signal for the present invention；

Fig. 9 configures the schematic flow sheet of another embodiment of method of pilot signal for the present invention；

Figure 10 is the structural representation of the embodiment of serving BS one of the present invention；

Figure 11 is the structural representation of another embodiment of serving BS of the present invention；

Figure 12 is the structural representation of UE-embodiment of the present invention；

Figure 13 is the structural representation of another embodiments of UE of the present invention；

24 Figure 14 is the structural representation of the embodiment of serving BS one of the present invention；

Figure 15 is the structural representation of another embodiment of serving BS of the present invention；

Figure 16 is the structural representation of UE-embodiment of the present invention；

Figure 17 is the structural representation of another embodiments of UE of the present invention.Embodiment is to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

Under CoMP scenes, because the UE CRS sequences received are from macro base station or are superimposed sequence, therefore when UE serving BS is R H, it is inappropriate to carry out Time and Frequency Synchronization with CRS sequences.Therefore, in the embodiment of the present invention, first way is at least two CSI-RS that good business base station configures co-sited for UE（CSI-RS Resource), the second way is that serving BS is configured not with PDSCH while the DMRS resources sent for UE.Optionally, UE can be according to the CSI-RS of at least two of the co-sited, or the DMRS resources not sent simultaneously with PDSCH carry out Time and Frequency Synchronization.Particular content may refer to subsequent embodiment.

Two pilot resources co-sited in the embodiment of the present invention（Quasi co-located), refer to that different pilot resources and its corresponding pilot frequency sequence are same serving BS configurations and sent.Or, UE can be from the large scale characteristic of the pilot signal received（Large-scale properties) in be inferred to the large scale characteristic of another pilot signal of co-sited that receives.Large scale characteristic includes part or all of in following items：Delay spread (Delay spread), doppler spread (Doppler spread), frequency shift (FS) (Frequency shift), mean receiving power (Average received power), receives timing (Received Timing).

Serving BS (serving base station) in the embodiment of the present invention can be base station（NodeB, NB), evolution base station（ENB, evolved NodeB), macro base station（Macro eNB), less radio-frequency head (Remote Radio Head, RRH), femto base station（Pico eNodeB), Home eNodeB（Home eNB) or LTE focuses and indoor enhancing（LTE Hotspot and Indoor Enhancements, LTE-Hi) small base station etc. is various that the website of wireless service can be provided for UE.

25 Fig. 1 configures the schematic flow sheet of the embodiment of method one of pilot signal for the present invention, including：Step 11:One serving BS is that a UE configures at least two CSI-RSs, and notifies that at least two CSI-RSs are configured by the serving BS described in the UE；

The moon, good business base station can send CSI-RS sequences after for UE configuration CSI-RS resources according to the CSI-RS resources, and UE can carry out Time and Frequency Synchronization etc. according to CSI-RS sequences.

In the embodiment of the present invention, at least two CSI-RS is that at least two CSI-RS that is referred to as configured by the serving BS is co-sited.

In the embodiment of the present invention, each CSI-RS at least includes five following CSI-RS parameters：

Antenna port configuration information（ antennaPortsCount-rll ):The main CSI-RS for indicating configuration port information, it is optional to be configured with 1 antenna port, 2 antenna ports, 4 antenna ports or 8 antenna ports；Running time-frequency resource positional information（resourceConfig-rll ):The main running time-frequency resource positional information for indicating CSI-RS in a RB；

Subframe configuration information（subframeConfig-rll ):Its time domain resource location information in the main cycle for indicating CSI-RS and a cycle；

Power information (- C-rll):The main Pc information for indicating CSI-RS.

Initiation parameter (X-rl l):It is mainly used in the calculating of the initiation parameter of the pseudo random sequence generator of CSI-RS sequences generation, scope is [0,503].

CSI-RS transmission bandwidth is consistent with the bandwidth of serving cell on frequency domain, it is not necessary to which extra definition is signaled.

It should be understood that in the present embodiment, the title for the instruction parameters that CSI-RS includes can also be the other titles for representing said function.

In the embodiment of the present invention, the co-sited（Namely same serving BS configuration）At least two CSI-RSs can be specifically non-zero power CSI-RS（Non zero power CSI-RS Resource, NZP CSI-RS Resource ).

Step 12:The serving BS sends DMRS to the UE, and notifies that DMRS is configured by the serving BS described in the UE.

Wherein, the DMRS and PDSCH of the present embodiment are sent in a subframe simultaneously, and the PDSCH is the PDSCH that serving BS is scheduled to UE, and UE is demodulated according to the DMRS to the PDSCH.

26 In the embodiment of the present invention, the DMRS is that the DMRS that is referred to as configured by the serving BS is co-sited with least two CSI-RS.

Because DMRS and PDSCH are also co-sited, therefore, as DMRS and at least two CSI-RS resource co-sited, also the PDSCH and at least two CSI-RSs co-sited are indicated that, and then UE uses at least two CSI-RS to be just synchronized to the website for issuing its PDSCH when carrying out Time and Frequency Synchronization, it is ensured that demodulation performance.

In LTE/LTE-A, the elementary cell that an antenna port is corresponded in a running time-frequency resource lattice (Resource Grid), a resource grid is called resource unit（Resource Element, RE), each RE can be used uniquely（K, l) represent, wherein k represents the sequence number of subcarrier in frequency domain, and 1 represents i or OFDM during a sub- frame in（Orthogonal Frequency Division Multiple, OFDM) symbol sequence number.One Physical Resource Block（Physical Resource Block, PRB) size be continuous 12 subcarriers on continuous 14 OFDM symbols in time domain, frequency domain.As shown in Fig. 2 the schematic diagram for the RE that the CSI-RS sequences that CSI-RS is sent on each antenna port when being 1 antenna of configuration or 2 antenna port can take in a PRB.

When configuring 1 antenna port, corresponding CSI-RS sequences are sent a CSI-RS on 2 RE in each PRB on antenna port Port 15, and the identical time domain of one group of frequency domain of correspondence is adjacent（ 0,1 ).When configuring 2 antenna port, corresponding CSI-RS sequences are sent a CSI-RS on 2 RE of identical in each PRB on antenna port Port 15 and Port 16, and the identical time domain of one group of frequency domain of correspondence is adjacent（0,1) the CSI-RS sequences, sent on 2 antenna ports are multiplexed in the way of CDM.Referring to Fig. 2, for the scene of 2 ports, there are 20 kinds of possibility the running time-frequency resource position that the corresponding CSI-RS sequences of each CSI-RS can take.When configuring 4 antenna port, i or adjacent when a CSI-RS takes a group echo as frequency i or identical on antenna port Port 15 and Port 16 in the way of CDM is multiplexed（0,1), antenna port Port 17 with to take a group echo on Port 18 in the way of CDM is multiplexed adjacent as the identical time domain of frequency domain（2,3 ).When configuring 8 antenna port, a CSI-RS antenna port Port 15 with to take a group echo on Port 16 in the way of CDM is multiplexed adjacent as the identical time domain of frequency domain（0,1), antenna port Port 17 with to take a group echo on Port 18 in the way of CDM is multiplexed adjacent as the identical time domain of frequency domain（2,3) i or adjacent when a group echo, is taken in the way of CDM is multiplexed as frequency i or identical on antenna port Port 19 and Port 20（4,5) i or adjacent when a group echo, is taken in the way of CDM is multiplexed as frequency i or identical on antenna port Port 21 and Port 22（ 6,7 ).

In the prior art, under the scene that eNB configures a 2 antenna port CSI-RSs, eNB

27 Select a kind of in 20 kinds of above-mentioned possible positions, CSI-RS sequences are sent on the position of the selection.And in the present embodiment, for a UE, same website configures at least two CSI-RS resources for it, corresponding CSI-RS sequences can be sent according to the CSI-RS of at least two of the configuration, for example, represent a site configuration to the running time-frequency resource shared by the same UE corresponding CSI-RS sequences of two CSI-RS resources with the running time-frequency resource of filling in Fig. 2, the website sends corresponding CSI-RS sequences on the running time-frequency resource of the configuration and gives the UE, UE can carry out Time and Frequency Synchronization according to the corresponding CSI-RS sequences of the two CSI-RS resources received afterwards.

The moon, good business base station can send DMRS simultaneously, UE is demodulated according to the DMRS to the PDSCH of reception when sending PDSCH to UE.As shown in Figure 3, running time-frequency resource shared by illustrating DMRS and PDSCH with different filling modes respectively, it is appreciated that, if being also for sending PDSCH's when being not used in transmission CSI-RS on the possible time-frequency location of CSI-RS sequences shown in Fig. 2, Fig. 3 be by shown in Fig. 2 filling position send CSI-RS sequences exemplified by, then remaining possible position will be used to send PDSCH.

In the present embodiment, network side will indicate the CSI-RS with DMRS co-sited, in the present embodiment, due to a DMRS and PDSCH-transmission, therefore the serving BS that DMRS website is UE is sent, UE needs to be synchronized to the serving BS, therefore, when CSI-RS and DMRS comes from same website, indicate that the CSI-RS also comes from serving BS, CSI-RS can be used for Time and Frequency Synchronization, and serving BS can be synchronized to.

In addition, because at least two CSI-RS comes from same base station, serving BS only need at least indicate that one of CSI-RS comes from same website with DMRS, it is assured that out that at least two CSI-RS both is from serving BS, and indication bit expense can be reduced when only indicating one.

Optionally, at least two above-mentioned CSI-RSs are that same eNB is sent, what same Macro was sent, what same RRH was sent, what same Pico was sent, what same Home eNB were sent, or, what the same small base stations of LTE-Hi were sent.

Optionally, at least two CSI-RSs are mapped to different OFDM (Orthogonal Frequency Division Multiple, OFDM) symbols at least two above-mentioned CSI-RSs.For example, referring to Fig. 4, serving BS is that same UE is configured with 3 CSI-RSs, running time-frequency resource position shared by illustrating the CSI-RS sequences that 3 CSI-RSs are indicated with filling mode, as can be seen from Figure 4, these running time-frequency resource positions are located in different OFDM symbols, that is to say, that this three

28 Individual CSI-RS is respectively mapped to different OFDM symbols.

Because the time domain interval between different CSI-RSs can influence the precision of offset estimation, the bigger precision of usual time domain interval is higher, therefore, by the way that above-mentioned CSI-RS is separated in time domain, the precision of offset estimation can be improved, and then meets the requirement of Frequency Synchronization tracking.

Optionally, the subframe indicated by subframe configuration information that at least two above-mentioned CSI-RSs include is same subframe, or two subframes, for example, the CSI-RS shown in Fig. 2 or Fig. 4 is to indicate same subframe, or, referring to Fig. 5, by taking two CSI-RSs, and two adjacent subframes of instruction as an example, the subframe indicated by subframe configuration information that these CSI-RSs each include can also belong to two adjacent subframes.

Optionally, if multiple serving BSs, which are same UE, configures pilot signal, each serving BS can be handled in the way of similar above-mentioned R H, for example, eNB is also handled according to above-mentioned RRH processing mode.

Optionally, when multiple serving BSs are that same UE dispatches PDSCH, it can indicate which CSI-RS and which DMRS are co-sited by DCI signalings or RRC signaling.

Corresponding, UE sides can perform following steps：

One UE knows that at least two CSI-RSs of a serving BS configuration, and at least two CSI-RS are configured by the serving BS；

The UE receives the DMRS that the serving BS is sent, and knows that the DMRS is configured by the serving BS.

The present embodiment is that same UE configures at least two CSI-RSs by same serving BS, and notify UEDMRS to be also what the serving BS was configured, UE can be caused according at least two CSI-RSs Time and Frequency Synchronization to accurate website, the accuracy of Time and Frequency Synchronization is improved, and then improves demodulation performance.

Fig. 6 is the schematic flow sheet of another embodiment of method of present invention configuration pilot signal, and Fig. 7 is the corresponding system schematics of Fig. 6, in Fig. 7 by taking the CoMP scenes that eNB and RRH is constituted as an example.Exemplified by the present embodiment is R H by good business base station.The present embodiment includes：

Step 61：R H send RRC signaling to UE, and the RRC signaling includes at least two CSI-RS resources, to indicate that at least two CSI-RS is co-sited.

For the notice of CSI-RS resources, can the radio resource control messages unit (Radio resource control information elements) of RRC signaling CSI-RS configuration information units

29 Configuration CSI-RS in (CSI-RS-Config information elements), each CSI-RS at least includes five following CSI-RS parameters：

Power information (- C-rl 1):The main Pc information for indicating CSI-RS.

In the embodiment of the present invention, at least two CSI-RS of the co-sited can be specifically non-zero power CSI-RS（ Non zero power CSI-RS Resource, NZP CSI-RS Resource ).

The CSI-RS of co-sited can be notified to UE in the following way：

Optionally, the first RRC signaling is sent to the UE, wherein, first RRC signaling includes：

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes at least two CSI-RS, so that the CSI-RS that first RRC signaling includes is determined as what is configured by the serving BS by the UE；

For example, at least two CSI-RS resources of configuration are expressed as CSI-RS resources 1 and CSI-RS resources 2, the information that CSI-RS resources 1 include is antennaPortsCoimt-rll l, resourceConfig-rll l, subframeConfig-rll l, p-C-rl 11 and X-rl 1-1, and the information that CSI-RS 2 includes is antennaPortsCoimt-rll 2, resourceConfig-rl l 2, subframeConfig-rll 2, p-C-rl 1-2 and X-rll 2, antennaPortsCount-rll l can then be included in CSI-RS configuration information unit, resourceConfig-rll l, subframeConfig-rll l, p-C-rl 11 and X-rl 11, and antennaPortsCount-rll 2,

30 ResourceConfig-rll 2, subframeConfig-rll 2, p-C-rll 2 and X-rll 2.After UE receives the RRC signaling comprising the CSI-RS configuration information unit, it is possible to determine that CSI-RS resources 1 and CSI-RS 2 are co-sited.

Or,

At least two CSI-RS configuration information units, each CSI-RS configuration information unit at least two CSI-RS configuration informations unit includes a CSI-RS resource at least two CSI-RS, and first configured information, and first configured information at least two CSI-RS configuration informations unit is identical, so that the UE is according to the configured information of identical first, at least two CSI-RS is determined as what is configured by the serving BS；

By taking two CSI-RS resources of above-mentioned configuration as an example, two CSI-RS configuration information units can then be included in RRC signaling, one CSI-RS configuration information unit includes antennaPortsCount-rll l, resourceConfig-rll l, subframeConfig-rll l, p-C-rll l and X-rll l and co-sited configured information 1, another CSI-RS configuration information unit includes antennaPortsCount-rl 12, resourceConfig-rl 12, subframeConfig-rl 12, p-C-rll 2 and X-rll 2 and co-sited configured information 2, wherein, co-sited configured information 1 and co-sited configured information 2 are identical, for example all it is 1.Wherein, the value of co-sited configured information can be 0,1,2 or 3, when for 0 when show multiple CSI-RSs of no co-sited, when the corresponding co-sited configured information of at least two CSI-RSs is identical and during non-zero co-sited configured information, shows these CSI-RS co-sited.

Or,

By taking two CSI-RS resources of above-mentioned configuration as an example, then it can include one in RRC signaling

31 CSI-RS configuration information units, the CSI-RS configuration information units include antennaPortsCount-rll l, resourceConfig-rll l, subframeConfig-rll l, p-C-rl 1-1 and X-rl 11 and a pairing configured information, by taking 2 antenna ports as an example, when it is determined that after a CSI-RS, there are 8 kinds of preferably possible configurations in the blunt track performance of the Time and Frequency Synchronization 3 that considers UE ends in the running time-frequency resource positional information that running time-frequency resource positional information that another CSI-RS includes in a PRB and the CSI-RS determined include in a PRB, so it can just be represented with the pairing configured information of 3 bits, for example, the running time-frequency resource positional information that the CSI-RS determined includes in a PRB is expressed as（;=11,/; = 2 ) ,_¾=1, wherein,;Represent the information for the running time-frequency resource positional information sub-carriers that the CSI-RS includes in a PRB ,=0,1,2...11; /;The information of OFDM symbols in the running time-frequency resource positional information that the CSI-RS includes in a PRB time slot is represented ,/; =0,1,2,...,6；_¾=0,1 represents time slot 0 or time slot 1 respectively, then running time-frequency resource position can be indicated with 000（ =2,/; =5 ) , n_{s l}=0, with 001 indicate running time-frequency resource position (k [=, l [=5), n_{s l}=0, remaining position can be indicated using similar fashion.For another example

It is assumed that（K'), running time-frequency resource positional information of the CSI-RS in a PRB is represented ,/; =5 , n_{s l} ) , ₂Can be

When/; = 2,n_{s 2}When=1, k₂' = (^-2),(^-1) ;,(^; + l),(k: + 2)；Or

As ≠ n_{s 1}When, k₂' = + 1)。

When considering the Time and Frequency Synchronization tracking performance at UE ends, there are 8 kinds of above-mentioned possibility in second positional information, therefore, second positional information can be indicated with the pairing configured information of 3 bits, therefore, under these conditions, it is only necessary to which 3 bits can just indicate two CSI-RSs of co-sited.

Step 62:R H send DMRS and PDSCH to UE, and send Downlink Control Information to UE（Downlink Control Information, DCI) signaling or RRC signaling, the DCI signalings or RRC signaling include configured information, the configured information is used to indicate that at least one CSI-RS and DMRS to be co-sited in described at least two CSI-RS, to notify that DMRS described in the UE and described at least two CSI-RS are co-sited.

RRC signaling in this step can be same RRC signaling or different RRC signalings from the RRC signaling in step 61.

That is, it is optional,

Configured by signaling DMRS described in the UE to the UE transmissions DCI of Downlink Control Information the first by the serving BS, wherein, the first DCI signalings include the second configured information, institute

32 Stating the second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and at least two CSI-RS to be that the serving BS is configured to the UE；Or

Because these CSI-RSs are co-sited, when it is co-sited to indicate DMRS and wherein at least one CSI-RS resources, it is possible to determine that these CSI-RSs and DMRS are co-sited.

The present embodiment is sent by RRC signaling and indicates the CSI-RS of co-sited, and the DMRS and CSI-RS of co-sited are sent and indicated by DCI signalings or RRC signaling, Time and Frequency Synchronization can be carried out according to the CSI-RS of co-sited, improve accuracy of synchronism.

Fig. 8 is the schematic flow sheet of another embodiment of method of present invention configuration pilot signal, and the present embodiment is still so that R H are serving BS as an example, and the present embodiment includes：

Step 81:R H send RRC signaling to UE, the RRC signaling includes the first CSI-RS resources, and send DCI signalings to the UE, the DCI signalings include the unpaired message of at least one, each unpaired message is used to indicate running time-frequency resource positional information of the 2nd CSI-RS resources relative to the first CSI-RS resources in a PRB, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, and first CSI-RS is described at least two

33 Any one CSI-RS in CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS,, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

In embodiments of the present invention, each CSI-RS at least includes five following CSI-RS parameters：

Power information (- C-rll):The main Pc information for indicating CSI-RS.

As described above, a CSI-RS can be indicated by the CSI-RS configuration information unit in a RRC signaling, at least another CSI-RS for indicating to match with CSI-RS configured RRC by DCI signalings, multiple CSI-RSs are configured to be embodied as UE.

From unlike a upper embodiment, the present embodiment is to indicate which CSI-RS is co-sited by DCI signalings.

Exemplified by configuring two CSI-RSs and be sent using 2 terminal port antennaes.

Running time-frequency resource positional information included by two same RB CSI-RS resources can use (k, l) respectively, and（ ) , ,₂Represent, wherein, and;The information of CSI-RS running time-frequency resource positional information sub-carriers included in a PRB, 0 are represented respectively; = 0,1,2...11 ; /;With

34 /;The information of OFDM symbol in CSI-RS running time-frequency resource positional information included in a PRB time slot is represented respectively ,/;,/;= 0,1,2,...,6；=0,1 represents time slot 0 or time slot 1 respectively.

The running time-frequency resource positional information that one CSI-RS includes in a PRB can use the resourceConfig-rll in CSI-RS configuration information units to indicate, specifically, can use（ ,/;) ,₁Represent.

Determine in fashion described above after first positional information, second positional information can be indicated with 3bit again, for example,

It is assumed that（), running time-frequency resource positional information of the CSI-RS in a PRB is represented ,/; =5 , n_sl=0 ,=2,3,8, or 9;So,₂Can be

When/; = 2,n_{s 2}When=1, k₂' = (^-2),(^-1) ;,(^; + l),(k: + 2)；Or

When i ≠ⁿ _s, when 2,^k ₂' = (^-1) ',(^ +！).

When considering the Time and Frequency Synchronization tracking performance at UE ends, there are 8 kinds of above-mentioned possibility in second positional information, therefore, second positional information can be indicated with three bits, therefore, under these conditions, it is only necessary to which 3 bits can just indicate two CSI-RSs of co-sited.

Step 82:R H with the DCI signalings identical subframe in, send DMRS to the UE so that the DMRS sent in described at least two CSI-RS of the co-sited indicated by the DCI signalings and same subframe is defined as co-sited by the UE.

Unlike the embodiments above is, also need to indicate DMRS and CSI-RS co-sited using signaling in a upper embodiment, in the present embodiment, UE can give tacit consent to is defined as co-sited by the DMRS sent in same subframe and CSI-RS configuration information unit and at least two CSI-RS of DCI signaling joint instructions.

Especially, if multiple serving BSs, which are same UE, configures pilot signal, then each serving BS can be handled in the way of similar above-mentioned R H, in this case, need to indicate the CSI-RS co-sited that DMRS is indicated with CSI-RS configuration information unit using DCI signalings or RRC signaling, so as to obtain DMRS and at least two CSI-RS co-sited.

The present embodiment passes through RRC signaling and the CSI-RS of DCI signaling joint instructions co-sited, UE can be made to determine that the DMRS in same subframe is co-sited with the CSI-RS indicated by DCI signalings, it can be synchronized according to the CSI-RS of co-sited, improve accuracy of synchronism.

Optionally, pilot signal, each service base are configured if multiple serving BSs are same UE

35 Standing can be handled in the way of similar above-mentioned R H, for example, eNB is also handled according to above-mentioned RRH processing mode.

Fig. 9 configures the schematic flow sheet of another embodiment of method of pilot signal for the present invention, including：Step 91:Serving BS sends the first DCI signalings to the first UE, and the first DCI signalings include the first configured information, PDSCH is sent when different when first configured information is used to indicate to send a DMRS;

Step 92:The serving BS sends the first DMRS to the first UE and does not send PDSCH.Optionally, the first DCI signalings are serving BSs after the first UE accesses are detected, transmission；Or,

First DCI signalings are sent after serving BS receives the up signaling of the first UE transmissions, that is, trigger what is sent by the first UE.

Optionally, often send once after the first DCI signalings, periodically send the first DMRS and do not send the PDSCH;Or, the first DCI signalings are often sent once, once the first DMRS is sent and does not send the PDSCH.

The configured information of 1 bit can be included in first DCI signalings, for example, when the configured information of 1 bit is " 1 " or " 0 ", representing to send PDSCH when only sending DMRS differences respectively, or PDSCH is sent while DMRS is sent.

In the embodiment of the present invention, DMRS and PDSCH refer to that both are transmitted in same PRB diverse location while sending, and send and refer in the PRB for sending DMRS without transmission PDSCH when both are different.

Optionally, this method can also include：The serving BS sends the 2nd DMRS on the corresponding running time-frequency resources of the first DMRS to the 2nd UE, while the serving BS sends corresponding 2nd PDSCH of the 2nd DMRS to the 2nd UE.For example, with reference to Fig. 3, at the time-frequency location shared by DMRS, the first DMRS is sent to the first UE respectively, and the 2nd DMRS is sent to the 2nd UE, while at the corresponding time-frequency locations of PDSCH, the 2nd PDSCH is sent to the 2nd UE.

Optionally, this method can also include：The serving BS sends the 3rd PDSCH and threeth DMRS corresponding with the 3rd PDSCH to the first UE, so that the first UE demodulates the 3rd PDSCH according to the 3rd DMRS.For example, serving BS is only sent out in the first PRB

36 DMRS is sent without sending PDSCH, and had both sent DMRS in the 2nd PRB and has sent PDSCH.

UE using pseudo random sequence generator when decoding DMRS, it is necessary to generate DMRS sequences, and the calculating of the initiation parameter of the pseudo random sequence generator and serving BS are the virtual subdistrict numbering that UE is configured（Virtual Cell ID) relating to parameters, it is assumed that the virtual subdistrict number parameter is represented with Y.With the PDSCH DMRS sent and simultaneously, Y corresponding with the DMRS that PDSCH is sent is configurable to identical during the difference that so same serving BS is sent to same UE, that is to say, that

Optionally, before the serving BS sends the first DMRS and does not send the PDSCH to the first UE, or, the serving BS sends the first DMRS to the first UE and not sent in the PDSCH, and methods described also includes：The first virtual subdistrict number parameter for generating the first DMRS is sent to the first UE；

Wherein, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter, and the UE knows that the first DMRS and the 3rd DMRS is that the serving BS is configured according to identical the first virtual subdistrict number parameter and the virtual number parameter of second community.

If be configured to during the difference that same serving BS is sent to same UE with the corresponding Y of DMRS that PDSCH is sent from the PDSCH DMRS sent and simultaneously it is different, when can indicate different in DCI signalings with the PDSCH DMRS sent and simultaneously the co-sited information with the DMRS of PDSCH transmissions.

That is, the serving BS sends radio resource control RRC signaling to the first UE, the RRC signaling includes the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or,

Also include the second configured information in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or,

37 The serving BS sends the 2nd DCI signalings to the first UE, the 2nd DCI signalings include the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information.

Optionally, when multiple serving BSs are that same UE is serviced, and each serving BS, when being respectively, it is simultaneously co-sited with the PDSCH DMRS (being abbreviated as DMRS -2) sent that the DMRS (being abbreviated as DMRS -1) sent when which is different with PDSCH can be indicated in the following way with for which：

Mode one：Each serving BS is DMRS -1 itself sent and the configuration identicals of DMRS -2 virtual subdistrict number parameter Y, and the Y of different serving BS configurations is different, therefore, UE can determine which DMRS -1 and which DMRS -2 are co-sited according to Y；Or,

Mode two：Each serving BS includes configured information in the DCI signalings or RRC signaling for being sent to UE, and the configured information is used to indicate which DMRS -1 and which DMRS -2 are co-sited.For example, serving BS is when sending DCI signalings, not only include the configured information for being used to indicate DMRS -1 (DMRS sent with PDSCH when different), in addition to for indicating the configured information with DMRS -2 of the co-sited of the DMRS -1.

Accordingly, UE sides can perform following steps：

UE receives the first DCI signalings that serving BS is sent, and the first DCI signalings include the first configured information, and first configured information sends PDSCH when different when being used to indicate to send a DMRS in setting time;

The UE receives the first DMRS that the serving BS is sent in the setting time, and the first DMRS is sent when different from PDSCH.

With a PDSCH-DMRS sent when the present embodiment to UE by sending different, UE can be caused to carry out Time and Frequency Synchronization according to the DMRS, it is ensured that UE Time and Frequency Synchronizations to serving BS, improve the accuracy of Time and Frequency Synchronization, and then improve demodulation performance.

Figure 10 is the structural representation of the embodiment of serving BS one of the present invention, and the serving BS 100 includes configuration module 101 and sending module 102;Configuration module 101 is that a user equipment (UE) configures at least two channel state information reference signals CSI-RSs；Sending module 102 is used to notify that at least two CSI-RSs are configured by the serving BS described in the UE；And, send demodulation ginseng to the UE

38 Signal DMRS is examined, and notifies that DMRS is configured by the serving BS described in the UE.

Optionally,

The subframe indicated by subframe configuration information that at least two CSI-RS resources include is subframe, or two subframes；Or,

In at least two CSI-RS of the configuration module configuration, at least two CSI-RS resource impacts to different orthogonal frequency division multiplex OFDM symbols.

Optionally,

The sending module is configured specifically at least two CSI-RS for notifying configuration module described in the UE to configure as follows by the serving BS：

Optionally,

39 The sending module notifies that DMRS is configured by the serving BS described in the UE specifically for sending demodulated reference signal DMRS to the UE as follows：Second sending module, for being configured by signaling DMRS described in the UE to the first Downlink Control Information DCI of UE transmissions by the serving BS, wherein, the first DCI signalings include the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and at least two CSI-RS to be that the serving BS is configured to the UE；Or

Optionally,

The sending module is configured specifically at least two CSI-RS for notifying configuration module described in the UE to configure as follows by the serving BS：RRC signaling is sent to the UE, wherein, the RRC signaling includes the first CSI-RS, and first CSI-RS is any one CSI-RS at least two CSI-RS；

The second Downlink Control Information DCI signalings are sent to the UE, wherein, the 2nd DCI signalings include at least one second unpaired message, each second unpaired message is used to indicate running time-frequency resource positional information of the 2nd CSI-RS resources relative to first CSI-RS in a Physical Resource Block PRB at least one described second unpaired message, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS, so that second CSI-RS that first CSI-RS and second unpaired message are indicated is determined as what is configured by the serving BS by the UE, first CSI-RS and described

40 Second CSI-RS shares other CSI-RS parameters in addition to running time-frequency resource positional information.

Optionally,

The sending module notifies that DMRS is configured by the serving BS described in the UE specifically for sending demodulated reference signal DMRS to the UE as follows：With the 2nd DCI signaling identical subframes in, the DMRS is sent to the UE so that the UE is configured the DMRS sent at least two CSI-RS indicated by the 2nd DCI signalings and the subframe by the serving BS.

The present embodiment passes through the CSI-RS for same UE configurations at least two, and indicate that UE at least two CSI-RSs come from same website with DMRS, UE can be caused according at least two CSI-RS Time and Frequency Synchronization to accurate website, the accuracy of Time and Frequency Synchronization is improved, and then improves demodulation performance.

Figure 11 is the structural representation of another embodiment of serving BS of the present invention, and the serving BS 110 includes the first sending module 111 and the second sending module 112;First sending module 111 is used to send the first Downlink Control Information DCI signalings to the first user equipment (UE), the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;Second sending module 112 is used to send the first DMRS to the first UE and does not send the PDSCH.

Optionally,

First sending module specifically for：

Optionally,

Second sending module specifically for：

Optionally, the serving BS

Also include：

41 3rd sending module, for sending the 2nd DMRS to the 2nd UE on the corresponding running time-frequency resources of the first DMRS, while the serving BS sends corresponding 2nd PDSCH of the 2nd DMRS to the 2nd UE.

Optionally, the serving BS

Also include：

Optionally, the serving BS

Also include：

Optionally, also include the second configured information in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, the serving BS also includes：

With a PDSCH-DMRS sent when the present embodiment to UE by sending different, UE can be caused to carry out Time and Frequency Synchronization according to the DMRS, it is ensured that UE Time and Frequency Synchronizations to serving BS, improved

42 The accuracy of Time and Frequency Synchronization, and then improve demodulation performance.

Figure 12 is the structural representation of UE-embodiment of the present invention, and the UE120 knows that module 121 and second knows module 122 including first;First knows that module 121 is used at least two channel state information reference signals CSI-RSs for knowing a serving BS configuration, and at least two CSI-RS is configured by the serving BS；Second knows that module 122 is used to receive the demodulated reference signal DMRS that the serving BS is sent, and knows that the DMRS is configured by the serving BS.

Optionally,

Described first know module specifically for：

Optionally,

Described second know module specifically for：

43 Receive the first Downlink Control Information DCI signalings that the serving BS is sent, the first DCI signalings include the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, knows that the DMRS and at least two CSI-RS are that the serving BS is configured according to the first DCI signalings；Or

Optionally,

Described first know module specifically for：

Optionally,

44 Described second know module specifically for：

Figure 13 is the structural representation of another embodiments of UE of the present invention, and the UE130 includes the first receiving module 131 and the second receiving module 132;First receiving module 131 is used for the first Downlink Control Information DCI signalings for receiving serving BS transmission, the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;Second receiving module 132 is used to receiving the first DMRS that the serving BS is sent, and the first DMRS is sent when different from PDSCH.

Optionally, the UE also includes：

Demodulation module, for demodulating the 3rd PDSCH according to the 3rd DMRS.

Optionally, the UE also includes：

Optionally, the UE also includes：5th receiving module, for receiving the radio resource control RRC signaling that the serving BS is sent, the RRC signaling includes the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；The UE refers to according to described second

45 Show that information knows that the first DMRS and the 3rd DMRS are the serving BS configurations；Or, the 2nd DCI signalings that the serving BS is sent are received, the 2nd DCI signalings include the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；The UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, also include the second configured information in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, and the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；

Figure 14 is the structural representation of another embodiment of serving BS of the present invention, and the serving BS 140 includes processor 141 and transmitter 142;Processor 141 is used to configure at least two channel state information reference signals CSI-RSs for a user equipment (UE)；Transmitter 142 is used at least two CSI-RS resources being sent to the UE, and notify that at least two CSI-RSs are configured by the serving BS described in the UE, and demodulated reference signal DMRS is sent to the UE, and notify that DMRS is configured by the serving BS described in the UE.

Optionally,

The transmitter specifically for：

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes at least two CSI-RS, the CSI-RS for including first RRC signaling so as to the UE

46 It is determined as what is configured by the serving BS；Or,

Optionally,

The transmitter also particularly useful for：

Notify that DMRS is configured by the serving BS described in the UE by sending the second RRC signaling to the UE, wherein, second RRC signaling includes the second configured information, and described second indicates

47 Information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and described at least two CSI-RS to be that the serving BS is configured to the UE.

Optionally,

The transmitter specifically for：

The second Downlink Control Information DCI signalings are sent to the UE, wherein, the 2nd DCI signalings include at least one second unpaired message, each second unpaired message is used to indicate running time-frequency resource positional information of the 2nd CSI-RS resources relative to first CSI-RS in a Physical Resource Block PRB at least one described second unpaired message, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS, so that second CSI-RS that first CSI-RS and second unpaired message are indicated is determined as what is configured by the serving BS by the UE, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

Optionally,

The transmitter also particularly useful for：

In the present embodiment, transmitter can be specially transceiver, specifically can also be realized using antenna, processor can be realized using DSP, FPGA etc..Memory, data/address bus, controlling bus, address bus etc. can also be included in the present embodiment.

Figure 15 is the structural representation of another embodiment of serving BS of the present invention, and the serving BS 150 includes

48 Processor 151 and transmitter 152;Processor 151 is used to generate the first Downlink Control Information DCI signalings and the first demodulated reference signal DMRS;Transmitter 152 is used to send the first Downlink Control Information DCI signalings to the first user equipment (UE), the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS.

Optionally,

The transmitter specifically for：

Optionally,

The transmitter also particularly useful for：

Optionally,

The transmitter is additionally operable to：

Optionally,

The transmitter is additionally operable to：

Optionally,

The transmitter is additionally operable to：

The first virtual subdistrict number parameter for generating the first DMRS is sent to the first UE；The second virtual subdistrict number parameter for generating the 3rd DMRS is sent to the first UE；

49 Wherein, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter, so that the UE knows that the first DMRS and the 3rd DMRS is that the serving BS is configured according to identical the first virtual subdistrict number parameter and the virtual number parameter of second community.

Optionally, the transmitter is additionally operable to：Radio resource control RRC signaling is sent to the first UE, the RRC signaling includes the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or,

The 2nd DCI signalings are sent to the first UE, the 2nd DCI signalings include the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information.

Figure 16 is the structural representation of another embodiments of UE of the present invention, and the UE 160 includes receiver 161 and processor 162;Receiver 161 is used at least two channel state information reference signals CSI-RS resources for receiving same serving BS configuration, and receives the demodulated reference signal DMRS that the serving BS is sent;Processor 162 is used to know that at least two channel state information reference signals CSI-RS is the serving BS configuration, and knows that the DMRS is the serving BS configuration.

Optionally,

The receiver specifically for

The first radio resource control RRC signaling that the serving BS is sent is received, wherein, described first

50 RRC signaling includes：

Optionally,

The receiver is specifically for receiving the first Downlink Control Information DCI signalings that the serving BS is sent, the first DCI signalings include the second configured information, and second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS；The processor according to the first DCI signalings specifically for knowing that the DMRS and at least two CSI-RS are that the serving BS is configured；

Or,

The receiver is specifically for receiving the first RRC signaling that the serving BS is sent, first RRC signaling includes the second configured information, and second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS；The processor according to first RRC signaling specifically for knowing the DMRS and described at least two

51 CSI-RS is the serving BS configuration；

Or,

Optionally,

The RRC signaling that the receiver is sent specifically for the reception serving BS, wherein, the RRC signaling includes the first CSI-RS, and first CSI-RS is any one CSI-RS at least two CSI-RS；Receive the 2nd DCI signalings that the serving BS is sent, wherein, the 2nd DCI signalings include at least one second unpaired message, each second unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS in a Physical Resource Block PRB at least one described second unpaired message, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information；

Optionally,

The receiver specifically for the 2nd DCI signaling identical subframes in, receive the DMRS that the serving BS is sent;

In the present embodiment, receiver can be specially transceiver, specifically can also be realized using antenna, processor can be realized using DSP, FPGA etc..Memory, data/address bus, controlling bus, address bus etc. can also be included in the present embodiment.

The present embodiment indicates that UE at least two CSI-RSs come from same website with DMRS by configuring at least two CSI-RS for same UE, can cause UE according to this extremely

52 Few two CSI-RS Time and Frequency Synchronization improves the accuracy of Time and Frequency Synchronization, and then improve demodulation performance to accurate website.

Figure 17 is the structural representation of another embodiments of UE of the present invention, and the UE 170 includes receiver 171 and processor 172;Receiver 171 is used for the first Downlink Control Information DCI signalings for receiving serving BS transmission, the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;And, receive the first DMRS that the serving BS is sent, the first DMRS is sent when different from PDSCH；Processor 172 deposits the first DCI signalings and the first DMRS for Slow.

Optionally,

The receiver is additionally operable to：Receive the first virtual subdistrict number parameter for being used to generate the first DMRS that the serving BS is sent, and for generating the second virtual subdistrict number parameter of the 3rd DMRS, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter；The processor is additionally operable to the first virtual subdistrict number parameter and the virtual number parameter of the second community according to identical and knows that the first DMRS and the 3rd DMRS is that the serving BS is configured.Optionally, the receiver is additionally operable to：The radio resource control RRC signaling that the serving BS is sent is received, the RRC signaling includes the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；Or, the second configured information is also included in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；Or, the 2nd DCI signalings that the serving BS is sent are received, the 2nd DCI signalings include the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；

The processor is additionally operable to know that the first DMRS and the 3rd DMRS are the serving BS configurations according to second configured information.

In the present embodiment, receiver can be specially transceiver, specifically can also be realized using antenna, processor can be realized using DSP, FPGA etc..Memory, data can also be included in the present embodiment total

53 Line, controlling bus, address bus etc..

One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can be completed by the related hardware of programmed instruction.Foregoing program can be stored in a computer read/write memory medium.The program upon execution, performs the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.

Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of various embodiments of the present invention technical scheme.

54

Claims

Claim

1st, a kind of method for configuring pilot signal, it is characterised in that including：

One serving BS is that a user equipment (UE) configures at least two channel state information reference signals CSI-RSs, and notifies that at least two CSI-RSs are configured by the serving BS described in the UE；

The serving BS sends demodulated reference signal DMRS to the UE, and notifies that DMRS is configured by the serving BS described in the UE.

2nd, according to the method described in claim 1, it is characterised in that

The subframe indicated by subframe configuration information that at least two CSI-RS resources include is a subframe or two subframes；Or

In at least two CSI-RS, at least two CSI-RSs are mapped to different orthogonal frequency division multiplex OFDM symbols.

3rd, method according to claim 1 or 2, it is characterised in that described to notify that at least two CSI-RSs are configured by the serving BS described in the UE, including：

The first radio resource control RRC signaling is sent to the UE, wherein, first RRC signaling includes：

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes at least two CSI-RS, so that the CSI-RS that first RRC signaling includes is determined as what is configured by the serving BS by the UE；Or,

At least two CSI-RS configuration information units, each CSI-RS configuration information unit at least two CSI-RS configuration informations unit includes a CSI-RS resource at least two CSI-RS, and first configured information, and first configured information at least two CSI-RS configuration informations unit is identical, so that the UE is according to the configured information of identical first, at least two CSI-RS is determined as what is configured by the serving BS；Or,

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes the first CSI-RS resources and at least one first unpaired message, each first unpaired message at least one described first unpaired message is used for the running time-frequency resource positional information for indicating the second CSI-RS in a Physical Resource Block PRB, or each first unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS, so that the 2nd CSI-RS resources that first CSI-RS and first unpaired message are indicated are determined as by the service base by the UE

55 Stand what is configured, the first CSI-RS resources are any one CSI-RS at least two CSI-RS resources, second CSI-RS is any one CSI-RS different from first CSI-RS at least two CSI-RS, and first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

4th, according to the method in any one of claims 1 to 3, it is characterised in that described to notify that DMRS is configured by the serving BS described in the UE, including：

Configured by signaling DMRS described in the UE to the first Downlink Control Information DCI of UE transmissions by the serving BS, wherein, the first DCI signalings include the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and at least two CSI-RS to be that the serving BS is configured to the UE；Or

Notify that DMRS is configured by the serving BS described in the UE by sending the first RRC signaling to the UE, wherein, first RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and at least two CSI-RS to be that the serving BS is configured to the UE；Or

Notify that DMRS is configured by the serving BS described in the UE by sending the second RRC signaling to the UE, wherein, second RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and described at least two CSI-RS to be that the serving BS is configured to the UE.

5th, method according to claim 1 or 2, it is characterised in that

It is described notify that at least two CSI-RSs are configured by the serving BS described in the UE before, methods described also includes：RRC signaling is sent to the UE, wherein, the RRC signaling includes the first CSI-RS, and first CSI-RS is any one CSI-RS at least two CSI-RS；

It is described to notify that at least two CSI-RSs are configured by the serving BS described in the UE, including：The second Downlink Control Information DCI signalings are sent to the UE, wherein, the 2nd DCI signalings, which include each second unpaired message at least one second unpaired message, at least one described second unpaired message, is used to indicate that the second CSI-RS to be relative to described first in a Physical Resource Block PRB

56 The running time-frequency resource positional information of CSI-RS, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS, so that second CSI-RS that first CSI-RS and second unpaired message are indicated is determined as what is configured by the serving BS by the UE, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

6th, method according to claim 5, it is characterised in that described to send demodulated reference signal DMRS to the UE, and notify that DMRS is configured by the serving BS described in the UE, including：

With the 2nd DCI signaling identical subframes in, the DMRS is sent to the UE so that the UE is configured the DMRS sent at least two CSI-RS indicated by the 2nd DCI signalings and the subframe by the serving BS.

7th, a kind of method for configuring pilot signal, it is characterised in that including：

Serving BS sends the first Downlink Control Information DCI signalings to the first user equipment (UE), the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;

The serving BS sends the first DMRS to the first UE and does not send the PDSCH.

8th, method according to claim 7, it is characterised in that the DCI signalings of transmission the first, including：

After the first UE accesses are detected, the first DCI signalings are sent；Or, the up signaling that the first UE is sent is received, the first DCI signalings are sent according to the up signaling.

9th, the method according to claim 7 or 8, it is characterised in that described to send the first DMRS to the first UE and do not send the PDSCH, including：

Often send once after the first DCI signalings, periodically send the first DMRS and do not send the PDSCH;Or,

The first DCI signalings are often sent once, once the first DMRS is sent and does not send the PDSCH.

10th, the method according to claim any one of 7-9, it is characterised in that the serving BS

57 Sending the first DMRS to the first UE and do not send the PDSCH also includes：The serving BS sends the first DMRS to the first UE and does not send the PDSCH, the serving BS sends the 2nd DMRS on the corresponding running time-frequency resources of the first DMRS to the 2nd UE, while the serving BS sends corresponding 2nd PDSCH of the 2nd DMRS to the 2nd UE.

11st, the method according to claim any one of 7-10, it is characterised in that after the serving BS sends the first DMRS and do not send the PDSCH to the first UE, methods described also includes：

The 3rd DMRS for sending the 3rd PDSCH to the first UE and being sent simultaneously with the 3rd PDSCH, so that the first UE demodulates the 3rd PDSCH according to the 3rd DMRS.

12nd, method according to claim 11, it is characterised in that

Before the serving BS sends the first DMRS and does not send the PDSCH to the first UE, or, the serving BS sends the first DMRS to the first UE and not sent in the PDSCH, and methods described also includes：The first virtual subdistrict number parameter for generating the first DMRS is sent to the first UE；

The 3rd DMRS for sending the 3rd PDSCH to the first UE and being sent with the 3rd PDSCH simultaneously before, or, in the 3rd DMRS for sending the 3rd PDSCH to the first UE and being sent with the 3rd PDSCH simultaneously, methods described also includes：The second virtual subdistrict number parameter for generating the 3rd DMRS is sent to the first UE, wherein, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter, so that the UE knows that the first DMRS and the 3rd DMRS is that the serving BS is configured according to identical the first virtual subdistrict number parameter and the virtual number parameter of second community.

13rd, method according to claim 11, it is characterized in that, the 3rd PDSCH is sent to the first UE and with the 3rd PDSCH while before the 3rd DMRS sent, or send the 3rd PDSCH and with the 3rd PDSCH while in the 3rd DMRS sent, methods described also includes to the first UE：The serving BS sends radio resource control RRC signaling to the first UE, the RRC signaling includes the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, The 3rd PDSCH is sent to the first UE and with the 3rd PDSCH while before the 3rd DMRS sent, or send the 3rd PDSCH and with the 3rd PDSCH while in the 3rd DMRS sent, methods described also includes to the first UE：Also include the second configured information in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, the 3rd PDSCH is sent to the first UE and with the 3rd PDSCH while before the 3rd DMRS sent, or send the 3rd PDSCH and with the 3rd PDSCH while in the 3rd DMRS sent, methods described also includes to the first UE：The serving BS sends the 2nd DCI signalings to the first UE, the 2nd DCI signalings include the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information.

14th, a kind of method for configuring pilot signal, it is characterised in that including：

One user equipment (UE) knows that at least two channel state information reference signals CSI-RSs of a serving BS configuration, and at least two CSI-RS are configured by the serving BS；The UE receives the demodulated reference signal DMRS that the serving BS is sent, and knows that the DMRS is configured by the serving BS.

15th, method according to claim 14, it is characterised in that the UE knows that at least two CSI-RSs of serving BS configuration, and at least two CSI-RS are configured by the serving BS, including：

UE receives the first radio resource control RRC signaling that the serving BS is sent, wherein, first RRC signaling includes：

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes at least two CSI-RS, so that the CSI-RS that first RRC signaling includes is determined as what is configured by the serving BS by the UE；Or,

At least two CSI-RS configuration information units, each CSI-RS configuration information unit at least two CSI-RS configuration informations unit includes a CSI-RS resource at least two CSI-RS, and first configured information, and first configured information at least two CSI-RS configuration informations unit is identical,, will be described so that the UE is according to the configured information of identical first

59 At least two CSI-RSs are determined as what is configured by the serving BS；Or, one CSI-RS configuration information unit, the CSI-RS configuration information unit includes the first CSI-RS resources and at least one first unpaired message, each first unpaired message at least one described first unpaired message is used for the running time-frequency resource positional information for indicating the second CSI-RS in a Physical Resource Block PRB, or each first unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS, so that the 2nd CSI-RS resources that first CSI-RS and first unpaired message are indicated are determined as what is configured by the serving BS by the UE, the first CSI-RS resources are any one CSI-RS at least two CSI-RS resources, second CSI-RS is any one CSI-RS different from first CSI-RS at least two CSI-RS, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

16th, the method according to claim 15, it is characterised in that described to know that the DMRS is configured by the base station, including：

Receive the first Downlink Control Information DCI signalings that the serving BS is sent, the first DCI signalings include the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, knows that the DMRS and at least two CSI-RS are that the serving BS is configured according to the first DCI signalings；Or

Receive the first RRC signaling that the serving BS is sent, first RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS resources, knows that the DMRS and at least two CSI-RS are that the serving BS is configured according to the first RRC signalings；Or

Receive the second RRC signaling that the serving BS is sent, second RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS resources, knows that the DMRS and at least two CSI-RS are that the serving BS is configured according to the 2nd RRC signalings.

17th, method according to claim 14, it is characterized in that, the at least two channel state information reference signals CSI-RS resources for knowing a serving BS configuration, and at least two CSI-RS are configured by the serving BS, including：

60 The RRC signaling that the serving BS is sent is received, wherein, the RRC signaling includes the first CSI-RS, and first CSI-RS is any one CSI-RS at least two CSI-RS；

Receive the 2nd DCI signalings that the serving BS is sent, wherein, the 2nd DCI signalings include at least one second unpaired message, each second unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to the first CSI-RS resources in a Physical Resource Block PRB at least one described second unpaired message, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS, other CSI-RS parameters of the first CSI-RS resources and the 2nd CSI-RS resource sharings in addition to running time-frequency resource positional information；

The 2nd CSI-RS resources that first CSI-RS and second unpaired message are indicated are determined as what is configured by the serving BS.

18th, method according to claim 17, it is characterised in that the DMRS that the reception serving BS is sent, and know that the DMRS is configured by the serving BS, including：

With the 2nd DCI signaling identical subframes in, receive the DMRS that the serving BS is sent;

The DMRS sent at least two CSI-RS indicated by the 2nd DCI signalings and the subframe is defined as the serving BS configuration.

19th, a kind of method for configuring pilot signal, it is characterised in that including：

User equipment (UE) receives the first Downlink Control Information DCI signalings that serving BS is sent, the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;

The UE receives the first DMRS that the serving BS is sent, and the first DMRS is sent when different from PDSCH.

20th, method according to claim 19, it is characterised in that also include：

The UE receives the 3rd PDSCH that the serving BS is sent and the 3rd DMRS sent simultaneously with the 3rd PDSCH;

The UE demodulates the 3rd PDSCH according to the 3rd DMRS.

21st, method according to claim 20, it is characterised in that also include：

61 The UE receives the first virtual subdistrict number parameter for being used to generate the first DMRS that the serving BS is sent, and for generating the second virtual subdistrict number parameter of the 3rd DMRS, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter；

The UE the first virtual subdistrict number parameter and the virtual number parameter of the second community according to identical know that the first DMRS and the 3rd DMRS is that the serving BS is configured.

22nd, method according to claim 20, it is characterised in that also include：The UE receives the radio resource control RRC signaling that the serving BS is sent, and the RRC signalings include the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；The UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, also include the second configured information in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, and the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or,

The UE receives the 2nd DCI signalings that the serving BS is sent, and the 2nd DCI signalings include the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；The UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information.

23rd, a kind of serving BS, it is characterised in that including：

Configuration module, for configuring at least two channel state information reference signals CSI-RSs for a user equipment (UE)；

Sending module, at least two CSI-RS resources for notifying configuration module described in the UE to configure are configured by the serving BS；Demodulated reference signal DMRS is sent to the UE, and notifies that DMRS is configured by the serving BS described in the UE.

24th, serving BS according to claim 23, it is characterised in that

The subframe indicated by subframe configuration information that at least two CSI-RS resources include is subframe, either two subframes or；

In at least two CSI-RS of the configuration module configuration, at least two CSI-RS resource impacts to different orthogonal frequency division multiplex OFDM symbols.

25th, the serving BS according to claim 23 or 24, it is characterised in that the transmission mould

62 Block is configured specifically at least two CSI-RS for notifying configuration module described in the UE to configure as follows by the serving BS：

The first radio resource control RRC signaling is sent to the UE, wherein, first RRC signaling includes：

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes at least two CSI-RS, so that the CSI-RS that first RRC signaling includes is determined as what is configured by the serving BS by the UE；Or,

At least two CSI-RS configuration information units, each CSI-RS configuration information unit at least two CSI-RS configuration informations unit includes a CSI-RS resource at least two CSI-RS, and first configured information, and first configured information at least two CSI-RS configuration informations unit is identical, so that the UE is according to the configured information of identical first, at least two CSI-RS is determined as what is configured by the serving BS；Or,

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes the first CSI-RS resources and at least one first unpaired message, each first unpaired message at least one described first unpaired message is used for the running time-frequency resource positional information for indicating the second CSI-RS in a Physical Resource Block PRB, or each first unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS, so that the 2nd CSI-RS resources that first CSI-RS and first unpaired message are indicated are determined as what is configured by the serving BS by the UE, the first CSI-RS resources are any one CSI-RS at least two CSI-RS resources, second CSI-RS is any one CSI-RS different from first CSI-RS at least two CSI-RS, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

26th, serving BS according to claim 25, it is characterised in that

The sending module notifies that DMRS is configured by the serving BS described in the UE specifically for sending demodulated reference signal DMRS to the UE as follows：

Configured by signaling DMRS described in the UE to the first Downlink Control Information DCI of UE transmissions by the serving BS, wherein, the first DCI signalings include the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and at least two CSI-RS to be that the serving BS is configured to the UE；Or

63 Notify that DMRS is configured by the serving BS described in the UE by sending the first RRC signaling to the UE, wherein, first RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and at least two CSI-RS to be that the serving BS is configured to the UE；Or

Notify that DMRS is configured by the serving BS described in the UE by sending the second RRC signaling to the UE, wherein, second RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and described at least two CSI-RS to be that the serving BS is configured to the UE.

27th, the serving BS according to claim 23 or 24, it is characterised in that the sending module is configured specifically at least two CSI-RS for notifying configuration module described in the UE to configure as follows by the serving BS：

RRC signaling is sent to the UE, wherein, the RRC signaling includes the first CSI-RS, and first CSI-RS is any one CSI-RS resource at least two CSI-RS；

The second Downlink Control Information DCI signalings are sent to the UE, wherein, the 2nd DCI signalings include at least one second unpaired message, each second unpaired message is used to indicate running time-frequency resource positional information of the 2nd CSI-RS resources relative to first CSI-RS in a Physical Resource Block PRB at least one described second unpaired message, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS, so that second CSI-RS that first CSI-RS and second unpaired message are indicated is determined as what is configured by the serving BS by the UE, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

28th, serving BS according to claim 27, it is characterised in that the sending module notifies that DMRS is configured by the serving BS described in the UE specifically for sending demodulated reference signal DMRS to the UE as follows：

With the 2nd DCI signaling identical subframes in, send the DMRS to the UE so that the UE is by least two CSI-RS indicated by the 2nd DCI signalings and the son

64 The DMRS that frame in is sent is configured by the serving BS.

29th, a kind of serving BS, it is characterised in that including：

First sending module, for sending the first Downlink Control Information DCI signalings to the first user equipment (UE), the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;

Second sending module, for sending the first DMRS to the first UE and not sending the PDSCH.

30th, serving BS according to claim 29, it is characterised in that first sending module specifically for：

After the first UE accesses are detected, the first DCI signalings are sent；Or, the up signaling that the first UE is sent is received, the first DCI signalings are sent according to the up signaling.

31st, the serving BS according to claim 29 or 30, it is characterised in that second sending module specifically for：

Often send once after the first DCI signalings, periodically send the first DMRS and do not send the PDSCH;Or,

The first DCI signalings are often sent once, once the first DMRS is sent and does not send the PDSCH.

32nd, the serving BS according to claim any one of 29-31, it is characterised in that also include：3rd sending module, for sending the 2nd DMRS to the 2nd UE on the corresponding running time-frequency resources of the first DMRS, while the serving BS sends corresponding 2nd PDSCH of the 2nd DMRS to the 2nd UE.

33rd, the serving BS according to claim any one of 29-32, it is characterised in that also include：4th sending module, for sending the 3rd PDSCH and with the described 3rd to the first UE

The 3rd DMRS that PDSCH is sent simultaneously, so that the first UE demodulates the 3rd PDSCH according to the 3rd DMRS.

34th, serving BS according to claim 33, it is characterised in that also include：

5th sending module, for sending the first virtual subdistrict number parameter for generating the first DMRS to the first UE；And, the second virtual subdistrict number parameter for generating the 3rd DMRS is sent to the first UE, wherein, first virtual subdistrict number parameter and second void

65 Intend cell number parameter identical, so that the UE knows that the first DMRS and the 3rd DMRS is that the serving BS is configured according to identical the first virtual subdistrict number parameter and the virtual number parameter of second community.

35th, serving BS according to claim 33, it is characterised in that

Also include the second configured information in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, the serving BS also includes：

6th sending module, for sending radio resource control RRC signaling to the first UE, the RRC signaling includes the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, the 2nd DCI signalings are sent to the first UE, the 2nd DCI signalings include the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information.

36th, a kind of user equipment (UE), it is characterised in that including：

First knows module, and at least two channel state information reference signals CSI-RSs for knowing a serving BS configuration, and at least two CSI-RS are configured by the serving BS；

Second knows module, for receiving the demodulated reference signal DMRS that the serving BS is sent, and knows that the DMRS is configured by the serving BS.

37th, UE according to claim 36, it is characterised in that described first know module specifically for：

The first radio resource control RRC signaling that the serving BS is sent is received, wherein, first RRC signaling includes：

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes at least two CSI-RS, so that the CSI-RS that first RRC signaling includes is determined as what is configured by the serving BS by the UE；Or,

In at least two CSI-RS configuration information units, at least two CSI-RS configuration informations unit Each CSI-RS configuration information unit include at least two CSI-RS in a CSI-RS resource, and first configured information, and first configured information at least two CSI-RS configuration informations unit is identical, so that the UE is according to the configured information of identical first, at least two CSI-RS is determined as what is configured by the serving BS；Or,

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes the first CSI-RS resources and at least one first unpaired message, each first unpaired message at least one described first unpaired message is used for the running time-frequency resource positional information for indicating the second CSI-RS in a Physical Resource Block PRB, or each first unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS, so that the 2nd CSI-RS resources that first CSI-RS and first unpaired message are indicated are determined as what is configured by the serving BS by the UE, the first CSI-RS resources are any one CSI-RS at least two CSI-RS resources, second CSI-RS is any one CSI-RS different from first CSI-RS at least two CSI-RS, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

38th, the UE according to claim 37, it is characterised in that described second know module specifically for：

Receive the first Downlink Control Information DCI signalings that the serving BS is sent, the first DCI signalings include the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, knows that the DMRS and at least two CSI-RS are that the serving BS is configured according to the first DCI signalings；Or

Receive the first RRC signaling that the serving BS is sent, first RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS resources, knows that the DMRS and at least two CSI-RS are that the serving BS is configured according to the first RRC signalings；Or

Receive the second RRC signaling that the serving BS is sent, second RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS resources, knows that the DMRS and at least two CSI-RS are that the serving BS is configured according to the 2nd RRC signalings.. 39th, UE according to claim 36, it is characterised in that described first know module specifically for：

The RRC signaling that the serving BS is sent is received, wherein, the RRC signaling includes the first CSI-RS, and first CSI-RS is any one CSI-RS at least two CSI-RS；

Receive the 2nd DCI signalings that the serving BS is sent, wherein, the 2nd DCI signalings include at least one second unpaired message, each second unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to the first CSI-RS resources in a Physical Resource Block PRB at least one described second unpaired message, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS, other CSI-RS parameters of the first CSI-RS resources and the 2nd CSI-RS resource sharings in addition to running time-frequency resource positional information；

The 2nd CSI-RS resources that first CSI-RS and second unpaired message are indicated are determined as what is configured by the serving BS.

40th, the UE according to claim 39, it is characterised in that described second know module specifically for：

With the 2nd DCI signaling identical subframes in, receive the DMRS that the serving BS is sent;

The DMRS sent at least two CSI-RS indicated by the 2nd DCI signalings and the subframe is defined as the serving BS configuration.

41st, a kind of user equipment (UE), it is characterised in that including：

First receiving module, the first Downlink Control Information DCI signalings for receiving serving BS transmission, the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;

Second receiving module, for receiving the first DMRS that the serving BS is sent, the first DMRS is sent when different from PDSCH.

42nd, UE according to claim 41, it is characterised in that also include：

3rd receiving module, for receiving the 3rd PDSCH of the serving BS transmission and with the 3rd PDSCH while the 3rd DMRS sent; Demodulation module, for demodulating the 3rd PDSCH according to the 3rd DMRS.

43rd, UE according to claim 42, it is characterised in that also include：

4th receiving module, for receiving the first virtual subdistrict number parameter for being used to generate the first DMRS that the serving BS is sent, and for generating the second virtual subdistrict number parameter of the 3rd DMRS, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter；First determining module, knows that the first DMRS and the 3rd DMRS is that the serving BS is configured for the first virtual subdistrict number parameter according to identical and the virtual number parameter of the second community.

44th, UE according to claim 42, it is characterised in that also include：5th receiving module, for receiving the radio resource control RRC signaling that the serving BS is sent, the RRC signaling includes the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；The UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, the 2nd DCI signalings that the serving BS is sent are received, the 2nd DCI signalings include the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；The UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, also include the second configured information in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, and the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Second determining module, for knowing that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information.

45th, a kind of serving BS, it is characterised in that including：

Processor, for configuring at least two channel state information reference signals CSI-RSs for a user equipment (UE)；

Transmitter, for at least two CSI-RS to be sent into the UE, and notify that at least two CSI-RSs are configured by the serving BS described in the UE, and demodulated reference signal DMRS is sent to the UE, and notify that DMRS is configured by the serving BS described in the UE.

46th, serving BS according to claim 45, it is characterised in that the processor configuration In at least two CSI-RS, at least two CSI-RSs are mapped to different orthogonal frequency division multiplex OFDM symbols；Or,

The subframe indicated by subframe configuration information that at least two CSI-RS resources include is subframe, or two subframes.

47th, the serving BS according to claim 45 or 46, it is characterised in that the transmitter specifically for：

The first radio resource control RRC signaling is sent to the UE, wherein, first RRC signaling includes：

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes at least two CSI-RS, so that the CSI-RS that first RRC signaling includes is determined as what is configured by the serving BS by the UE；Or,

At least two CSI-RS configuration information units, each CSI-RS configuration information unit at least two CSI-RS configuration informations unit includes a CSI-RS resource at least two CSI-RS, and first configured information, and first configured information at least two CSI-RS configuration informations unit is identical, so that the UE is according to the configured information of identical first, at least two CSI-RS is determined as what is configured by the serving BS；Or,

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes the first CSI-RS resources and at least one first unpaired message, each first unpaired message at least one described first unpaired message is used for the running time-frequency resource positional information for indicating the second CSI-RS in a Physical Resource Block PRB, or each first unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS, so that the 2nd CSI-RS resources that first CSI-RS and first unpaired message are indicated are determined as what is configured by the serving BS by the UE, the first CSI-RS resources are any one CSI-RS at least two CSI-RS resources, second CSI-RS is any one CSI-RS different from first CSI-RS at least two CSI-RS, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

48th, serving BS according to claim 47, it is characterised in that the transmitter also particularly useful for：

Configured by signaling DMRS described in the UE to the first Downlink Control Information DCI of UE transmissions by the serving BS, wherein, the first DCI signalings include the second configured information, institute Stating the second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and at least two CSI-RS to be that the serving BS is configured to the UE；Or

Notify that DMRS is configured by the serving BS described in the UE by sending the first RRC signaling to the UE, wherein, first RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and at least two CSI-RS to be that the serving BS is configured to the UE；Or

Notify that DMRS is configured by the serving BS described in the UE by sending the second RRC signaling to the UE, wherein, second RRC signaling includes the second configured information, second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS, to notify the DMRS and described at least two CSI-RS to be that the serving BS is configured to the UE.

49th, the serving BS according to claim 45 or 46, it is characterised in that the transmitter specifically for：

RRC signaling is sent to the UE, wherein, the RRC signaling includes the first CSI-RS, and first CSI-RS is any one CSI-RS resource at least two CSI-RS；

The second Downlink Control Information DCI signalings are sent to the UE, wherein, the 2nd DCI signalings include at least one second unpaired message, each second unpaired message is used to indicate running time-frequency resource positional information of the 2nd CSI-RS resources relative to first CSI-RS in a Physical Resource Block PRB at least one described second unpaired message, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS, so that second CSI-RS that first CSI-RS and second unpaired message are indicated is determined as what is configured by the serving BS by the UE, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

50th, serving BS according to claim 49, it is characterised in that the transmitter also particularly useful for：

With the 2nd DCI signaling identical subframes in, send the DMRS to the UE, make

71 The UE is obtained to configure the DMRS sent at least two CSI-RS indicated by the 2nd DCI signalings and the subframe by the serving BS.

51st, a kind of serving BS, it is characterised in that including：

Processor, for generating the first Downlink Control Information DCI signalings and the first demodulated reference signal DMRS;

Transmitter, for sending the first Downlink Control Information DCI signalings to the first user equipment (UE), the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;And, send the first DMRS to the first UE and do not send the PDSCH.

52nd, serving BS according to claim 51, it is characterised in that the transmitter specifically for：

After the first UE accesses are detected, the first DCI signalings are sent；Or, the up signaling that the first UE is sent is received, the first DCI signalings are sent according to the up signaling.

53rd, the serving BS according to claim 51 or 52, it is characterised in that the transmitter also particularly useful for：

Often send once after the first DCI signalings, periodically send the first DMRS and do not send the PDSCH;Or,

The first DCI signalings are often sent once, once the first DMRS is sent and does not send the PDSCH.

54th, the serving BS according to claim any one of 51-53, it is characterised in that the transmitter is additionally operable to：

The serving BS sends the first DMRS to the first UE and does not send the PDSCH, the serving BS sends the 2nd DMRS on the corresponding running time-frequency resources of the first DMRS to the 2nd UE, while the serving BS sends corresponding 2nd PDSCH of the 2nd DMRS to the 2nd UE.

55th, the serving BS according to claim any one of 51-54, it is characterised in that the transmitter is additionally operable to：

The 3rd DMRS for sending the 3rd PDSCH to the first UE and being sent simultaneously with the 3rd PDSCH, so that the first UE demodulates the 3rd PDSCH according to the 3rd DMRS. 56th, serving BS according to claim 55, it is characterised in that the transmitter is additionally operable to：The first virtual subdistrict number parameter for generating the first DMRS is sent to the first UE；The second virtual subdistrict number parameter for generating the 3rd DMRS is sent to the first UE；Wherein, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter, so that the UE knows that the first DMRS and the 3rd DMRS is that the serving BS is configured according to identical the first virtual subdistrict number parameter and the virtual number parameter of second community.

57th, serving BS according to claim 55, it is characterised in that the transmitter is additionally operable to：Radio resource control RRC signaling is sent to the first UE, the RRC signaling includes the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or, also include the second configured information in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information；Or,

The 2nd DCI signalings are sent to the first UE, the 2nd DCI signalings include the second configured information, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations, so that the UE knows that the first DMRS and the 3rd DMRS are that the serving BS is configured according to second configured information.

58th, a kind of user equipment (UE), it is characterised in that including：

Receiver, for receiving at least two channel state information reference signals CSI-RSs of same serving BS configuration, and receives the demodulated reference signal DMRS that the serving BS is sent;

Processor, for knowing that at least two channel state information reference signals CSI-RS is the serving BS configuration, and knows that the DMRS is the serving BS configuration.

59th, UE according to claim 58, it is characterised in that

The receiver specifically for

The first radio resource control RRC signaling that the serving BS is sent is received, wherein, first RRC signaling includes：

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes at least two CSI-RS, the CSI-RS for including first RRC signaling so as to the UE

73 It is determined as what is configured by the serving BS；Or,

At least two CSI-RS configuration information units, each CSI-RS configuration information unit at least two CSI-RS configuration informations unit includes a CSI-RS resource at least two CSI-RS, and first configured information, and first configured information at least two CSI-RS configuration informations unit is identical, so that the UE is according to the configured information of identical first, at least two CSI-RS is determined as what is configured by the serving BS；Or,

One CSI-RS configuration information unit, the CSI-RS configuration information unit includes the first CSI-RS resources and at least one first unpaired message, each first unpaired message at least one described first unpaired message is used for the running time-frequency resource positional information for indicating the second CSI-RS in a Physical Resource Block PRB, or each first unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS, so that the 2nd CSI-RS resources that first CSI-RS and first unpaired message are indicated are determined as what is configured by the serving BS by the UE, the first CSI-RS resources are any one CSI-RS at least two CSI-RS resources, second CSI-RS is any one CSI-RS different from first CSI-RS at least two CSI-RS, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information.

60th, UE according to claim 59, it is characterised in that

The receiver is specifically for receiving the first Downlink Control Information DCI signalings that the serving BS is sent, the first DCI signalings include the second configured information, and second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS；The processor according to the first DCI signalings specifically for knowing that the DMRS and at least two CSI-RS are that the serving BS is configured；

Or,

The receiver is specifically for receiving the first RRC signaling that the serving BS is sent, first RRC signaling includes the second configured information, and second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS；The processor according to first RRC signaling specifically for knowing that the DMRS and at least two CSI-RS are that the serving BS is configured；

Or,

The receiver is specifically for receiving the second RRC signaling that the serving BS is sent, described second

74 RRC signaling includes the second configured information, and second configured information is used to indicate that at least one CSI-RS is configured by the serving BS in the DMRS and at least two CSI-RS；The processor according to second RRC signaling specifically for knowing that the DMRS and at least two CSI-RS are that the serving BS is configured.

61st, UE according to claim 58, it is characterised in that

The RRC signaling that the receiver is sent specifically for the reception serving BS, wherein, the RRC signaling includes the first CSI-RS, and first CSI-RS is any one CSI-RS at least two CSI-RS；Receive the 2nd DCI signalings that the serving BS is sent, wherein, the 2nd DCI signalings include at least one second unpaired message, each second unpaired message is used to indicate running time-frequency resource positional information of second CSI-RS relative to first CSI-RS in a Physical Resource Block PRB at least one described second unpaired message, or, each second unpaired message is used for the running time-frequency resource positional information for indicating second CSI-RS, second CSI-RS is any one CSI-RS different from first CSI-RS in described at least two CSI-RS, first CSI-RS and second CSI-RS share other CSI-RS parameters in addition to running time-frequency resource positional information；

The processor by second CSI-RS of the first CSI-RS resources and second unpaired message instruction specifically for being determined as what is configured by the serving BS.

62nd, UE according to claim 61, it is characterised in that

The receiver specifically for the 2nd DCI signaling identical subframes in, receive the DMRS that the serving BS is sent;

The processor by the DMRS sent at least two CSI-RS resources indicated by the 2nd DCI signalings and the subframe specifically for being defined as the serving BS configuration.

63rd, a kind of user equipment (UE), it is characterised in that including：

Receiver, the first Downlink Control Information DCI signalings for receiving serving BS transmission, the first DCI signalings include the first configured information, and first configured information sends Physical Downlink Shared Channel PDSCH when different when being used to indicate to send the first demodulated reference signal DMRS;And, receive the first DMRS that the serving BS is sent, the first DMRS is sent when different from PDSCH；Processor, the first DCI signalings and the first DMRS are deposited for Slow.

64th, UE according to claim 63, it is characterised in that

The receiver is additionally operable to receive the 3rd PDSCH that the serving BS sends and with described the The 3rd DMRS that three PDSCH are sent simultaneously;

The processor is additionally operable to demodulate the 3rd PDSCH according to the 3rd DMRS.

65th, UE according to claim 64, it is characterised in that

The receiver is additionally operable to：Receive the first virtual subdistrict number parameter for being used to generate the first DMRS that the serving BS is sent, and for generating the second virtual subdistrict number parameter of the 3rd DMRS, first virtual subdistrict number parameter is identical with second virtual subdistrict number parameter；The processor is additionally operable to the first virtual subdistrict number parameter and the virtual number parameter of the second community according to identical and knows that the first DMRS and the 3rd DMRS is that the serving BS is configured.

66th, UE according to claim 64, it is characterised in that the receiver is additionally operable to：The radio resource control RRC signaling that the serving BS is sent is received, the RRC signaling includes the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；Or, the second configured information is also included in the first DCI signalings, second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；Or, the 2nd DCI signalings that the serving BS is sent are received, the 2nd DCI signalings include the second configured information, and second configured information is used to indicate that the first DMRS and the 3rd DMRS are the serving BS configurations；The processor is additionally operable to know that the first DMRS and the 3rd DMRS are the serving BS configurations according to second configured information.

76