Title: resource configuration method of the reference signal, and a communication system means

FIELD

[0001]

Embodiment of the invention relates to communication technologies, and particularly relates to a three-dimensional (3D) multi-output multiple-output (MIMO, Multiple Input Multiple Output) system resource configuration method of the reference signal, and a communication system means.

Background technique

[0002]

With the development of antenna technology, large number of antennas may be placed at the transmitting end. A plurality of antennas dimensional beamforming (Beamforming) technology can improve antenna gain flexibility in configuring the beam width and direction according to the distribution of user equipment (UE, User Equipment), and restrain the random interference between white noise and the cell, improve the system transmission efficiency and reliability, is a popular candidate technologies of the future mobile communication systems.

[0003]

To facilitate discovery and measurement of the user equipment, a reference signal (RS, Reference Signal) corresponding to the need for guidance. Which may include channel state information reference signal (CSI-RS, Channel State Information Reference Signal), a common reference signal (CRS, Common Reference Signal), demodulation reference signal (DMRS, De-Modulation Reference Signal) and the like.

[0004]

In an example CSI-RS, CSI-RS is defined in the LTE R10 transmission system for cycles according to system configuration and a fixed offset. The base station may be notified of which of the specific subframe configuration and resource allocation by higher layer signaling CSI-RS-Config. View from the existing standard, the base station once resource CSI-RS is configured by higher layer signaling, the base station would have been transmitted in accordance with the CSI-RS and a period corresponding to the position, unless the base station is released again via higher layer signaling the CSI-RS resources.

[0005]

It should be noted that the above description of the technical background for convenience only technical solution of the present invention will be clear and complete instructions, and to facilitate the understanding of the skilled in the art and forth. Just because these solutions are set forth in the background section of the present invention that the above technical solutions known to those skilled in the art.

[0006]

SUMMARY

[0007]

However, the inventors found that: in a 3D MIMO systems, in order to better serve the user equipment, generally requires a plurality of different types of reference signals. The technology is currently at a preliminary stage 3DMIMO research, not taking into account how different types of reference signal specific definition, and how the future is compatible with various types of reference signals.

[0008]

It provides a reference signal resource allocation method, apparatus and a communication system according to the present invention. 3D MIMO system is applied to flexibly support a plurality of types of reference signals.

[0009]

According to a first aspect of the embodiment of the present invention, there is provided a reference signal resource allocation method applied to a base station 3D MIMO system, comprising:

[0010]

Beam weighting coefficient the base station by a first precoded reference signal resource allocation, and is not performed by the user equipment precoding or beamforming weighting coefficients do not know the second reference signal has been precoded allocation of resources;

[0011]

Resources of the base station reference signal of the first configuration and the second reference signal resource allocation to the user equipment.

[0012]

According to a second aspect of the present embodiment of the invention, providing a reference signal resource allocation means, arranged in the base 3D MIMO system, comprising:

[0013]

Resource allocation means, by the weighting factor of the beam reference signal is a first allocation of resources pre-coded, and the reference signal for the second allocation of resources is not pre-coded or pre-coded by the beam user equipment does not know the weighting coefficients;

[0014]

Means for sending the resource allocation of the first reference signal and the second reference signal resource is configured to the user equipment.

[0015]

According to a third aspect of the present embodiment of the invention, there is provided a reference signal resource allocation method applied to a user equipment 3D MIMO system, comprising:

[0016]

The user equipment receives the base station transmitted by the beam weighting coefficients a first reference signal resource allocation precoded, and no pre-coding, or user equipment by the beam weighting coefficients were not know the second reference signal resource allocation precoded.

[0017]

According to a fourth aspect of the present embodiment of the invention, providing a reference signal resource allocation means, arranged in a user equipment 3D MIMO system, comprising:

[0018]

A receiving unit configured to receive the base station transmits the resource allocation is performed first reference signal precoded by the beam weighting coefficients, and no pre-coding, or user equipment does not know by the beam weighting coefficients for the second reference signal resource precoded configuration.

[0019]

According to a fifth aspect of the present embodiment of the invention, there is provided a communication system, said communication system comprising:

[0020]

The base station, by the beam weighting coefficients precoded reference signal configuration of the first resource, as well as a second reference signal resource allocation is not pre-coded or pre-coded by the beam user equipment does not know the weighting factor; and transmitting the resources first reference signal configuration and resource configuration of the second reference signal;

[0021]

User equipment, receiving the first reference signal resource allocation, resource configuration and the second reference signal.

[0022]

According to another aspect of the present embodiment of the invention, there is provided a computer-readable program, wherein the program when executed in a base station, said program causing a computer to execute resource configuration method of the reference signal as described above in the base station .

[0023]

According to another aspect of the present embodiment of the invention, there is provided a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform resource allocation method as described above the reference signal at the base station.

[0024]

According to another aspect of the present embodiment of the invention, there is provided a computer-readable program, wherein the program when executed in the user equipment, said program causing a computer to execute the resources as described above with reference to signal the user equipment configuration.

[0025]

According to another aspect of the present embodiment of the invention, there is provided a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform resource allocation method as described above a reference signal in the user equipment.

[0026]

Advantageous effects of the embodiments of the present invention is that: the base station by the first beam weighting coefficients precoded reference signal resource allocation, and for the second reference precoder is not performed by the user equipment precoding or beamforming weighting coefficients do not know signal allocation of resources. Thus, 3D MIMO system can flexibly support multiple types of reference signals.

[0027]

With reference to the description and drawings, particular embodiments disclosed detailed embodiment of the present invention, the embodiment specifies principles of the invention may be employed. It should be understood that the embodiments of the present invention is not limited correspondingly in scope. Within the scope and spirit of the appended claims the terms, embodiments of the present invention includes many changes, modifications, and equivalents.

[0028]

Described and / or illustrated features of one embodiment may be used for the same or similar manner in one or more other embodiments, be combined with features of other embodiments, or replace features of other embodiments of the .

[0029]

It should be emphasized that the term "comprises / comprising" when used herein refers to features, integers, steps or components but does not preclude one or more other features, integers, steps or components or additional.

BRIEF DESCRIPTION

[0030]

Reference to the following drawings may be better understood with many aspects of the invention. The components in the drawings are not drawn to scale, but merely to illustrate the principles of the present invention. To facilitate illustrating and describing some parts of the invention, corresponding portions of the drawings may be enlarged or reduced.

[0031]

Elements and features of the elements and features described in one figure or one embodiment of the present invention may be illustrated embodiment with one or more other drawings or embodiments described combination. Further, in the drawings, like reference numerals designate corresponding parts throughout the several views, and more than one for indicating corresponding parts used in the embodiment mode.

[0032]

1 is a schematic view of a resource configuration method in Example 1 of the present invention;

[0033]

FIG 2 is a more embodiments of the present invention, the CSI-RS Example 1 a schematic view of a cover of the different UE;

[0034]

FIG 3 is a schematic view of another embodiment of a resource allocation method of an embodiment of the present invention;

[0035]

FIG 4 is a schematic diagram of another embodiment of a resource allocation method of an embodiment of the present invention;

[0036]

FIG 5 is a schematic view of a resource allocation method according to a second embodiment of the present invention;

[0037]

FIG 6 is a schematic of another resource allocation method of the second embodiment of the present invention;

[0038]

FIG 7 is a schematic diagram of another resource allocation method of the second embodiment of the present invention;

[0039]

FIG 8 is a schematic view of a resource allocation apparatus according to the third embodiment of the present invention;

[0040]

FIG 9 is a schematic view of a configuration of a base station according to the third embodiment of the present invention;

[0041]

FIG 10 is a schematic view of a resource allocation apparatus according to a fourth embodiment of the present invention;

[0042]

FIG 11 is a schematic view of a configuration of the user equipment according to embodiment 4 of the present invention;

[0043]

FIG 12 is a configuration diagram of a communications system according to embodiment 5 of the present invention.

detailed description

[0044]

Referring to the drawings, the following description, the foregoing and other features of the present invention will become apparent. In the description and drawings, particular embodiments specifically disclosed embodiment of the present invention, which shows the principles of the invention may be employed from the first embodiment, it is understood that the present invention is not limited to the described embodiments, on the contrary, the present invention includes all modifications falling within the scope of the appended claims, modifications and equivalents thereof.

[0045]

In 3D MIMO system, the beam can vary as the position of the user equipment, to provide better service for the user equipment. To accommodate user equipment in different locations, can be used very narrow beam width of the beam, but the beam does not completely cover all user equipments within a cell. In addition, the beam width can also be used even the whole wide angle beam that can be done for all user equipments full cell coverage.

[0046]

Whether a narrow beam or a wide beam, in order to facilitate discovery and measurement of the user equipment, corresponding to the reference signal are required as a guide. The following embodiment will be described as an example CSI-RS, but the present invention is not limited thereto, for example, may be other reference signal.

[0047]

Example 1

[0048]

Provides a reference signal resource allocation method of the present invention is applied to a base station 3D MIMO system. 1 is a schematic view of a resource configuration method embodiment of the present invention embodiment, the method shown in FIG. 1 comprising:

[0049]

Step 101, the base station by a first weighting factor beam reference signal resource allocation precoding and precoding is not performed by a beam or user equipment does not know the weighting factor precoded second reference signal allocation of resources;

[0050]

Step 102, the base station of the first reference signal resource configuration and the second reference signal resource allocation to the user equipment.

[0051]

In the present embodiment, for a narrow beam, the system can be performed using a pre-coded first reference signal (e.g. beamformed CSI-RS) by the beam weighting coefficients, wherein, the UE knows that the first reference signal precoding. For wide beam, the system can not be pre-coded second reference signal (e.g., non-precoded CSI-RS) by the beam weighting coefficients. Further, the system may use the UE does not know (or need to know) of the second reference signal is precoded. That is, the second reference signal may be completely precoded reference signal; may be precoded reference signal, the UE does not know the second reference signal is pre-coded.

[0052]

Wherein the first reference signal may have one or more, the second reference signal may have one or more. In the following examples, the only non-precoded CSI-RS will be described as an example of the second reference signal.

[0053]

FIG 2 is a CSI-RS various embodiments of the present invention covers various embodiments of a UE FIG. 2, the UE1 can receive a first reference signal by a signal 1 (beamformed CSI-RS1) sent by the portion of the first reference signal 2 (beamformed CSI-RS2) signal sent by may also receive, so UE1 two CSI-RS can be measured so as to select the best channel quality of a CSI-RS. For UE2, because CSI-RS1 and the beam direction two CSI-RS2 narrow beams of which are far away, it can only be overridden by another reference signal, for example, the base station transmits a second reference signal (non-precoded CSI-RS), thereby helping the UE2 measurement channel.

[0054]

Two shown in FIG CSI-RS (i.e. beamformed CSI-RS and non-precoded CSI-RS) configuration, such that a user equipment in different locations can be covered by a base station signals to the respective channel quality feedback Suitable information, such as precoding matrix indicator (PMI, precoding matrix Indicator), channel quality indicator (CQI, channel quality) or rank indication (RI, rank Indicator) information. Two kinds of CSI-RS can be divided by a zone resources (resources in time domain and / or frequency domain resource) position, period, port (Port) and other parameters.

[0055]

In the present embodiment, resources may be predefined period, port parameters such as the type of CSI-RS correspondence table when the frequency measurements corresponding to the UE upon receiving the corresponding CSI-RS. For beamformed CSI-RS, it may also be the beam information (e.g., index or other parameter indicating Beam Beam) and the time-frequency resource, cycle, port and other parameters correspond. Notably, the above parameters are not limited thereto, specific parameters may also be determined according to the actual scene.

[0056]

E.g., UE may be determined according to the detected port information CSI-RS received CSI-RS is beamformed or non-precoded CSI-RS. In beamformed CSI-RS is determined as a case, you may also obtain the corresponding beam number. However, the present invention is not limited thereto, according to the time-frequency resource, cycle, port one of these parameters or any combination to determine what type of CSI-RS.

[0057]

In the present embodiment, the CSI-RS type for time-frequency resources, the cycle, port correspondence table parameters can be agreed in advance between the base station and the UE statically; can also be configured by higher layer signaling from the base station, thus it may be dynamically or semi-dynamically adjust the correspondence information.

[0058]

In the present embodiment, the first reference signal may be sent after the first reference signal resource allocation, signaling triggered by activating or user equipment reports the measurement result of the first reference signal, and also (or advance amount) transmit the first reference signal. For the second reference signal, the second reference signal may be transmitted when sending the second reference signal resource allocation.

[0059]

That is, the base station configuration, and a variety of non-zero transmit power (non-zero power) of the CSI-RS. One configuration and a CSI-RS transmission may be performed simultaneously, which CSI-RS for the non-precoded CSI-RS, for all base stations within the coverage area of ​​the UE channel measurements; another configuration and a CSI-RS transmission separately, the CSI-RS transmitted through a signaling or activation trigger, such as a CSI-RS beamformed CSI-RS, for the partial UE performs channel measurement.

[0060]

For example, for the non-precoded CSI-RS, configuring and transmitting simultaneously. Considering the beamformed CSI-RS can be more flexible configuration, the base station may transmit beamformed process CSI-RS is divided into two steps: a first step for the CSI-RS resource configuration, the second step to transmit CSI-RS. For beamformed CSI-RS, After configuring the CSI-RS resource, waiting for medium access control layer (MAC, Media Access Control) signaling or physical layer signaling activation PDCCH in downlink control information (DCI, Downlink Control Information) triggered ; whereby a certain advance to transmit the beamformed CSI-RS, guaranteed detection of the beamformed CSI-RS is triggered when the UE receives a signaling or activation.

[0061]

In one embodiment, the reference signal is periodically transmitted non-precoded CSI-RS configured by the base station, wherein the resource location and period of the reference signal is configured by upper layer signaling, such as Radio Resource Control (RRC, Radio Resource Control) channel make. beamformed CSI-RS and are arranged to trigger the base station (or activate) a reference signal periodically transmitted, wherein the reference signal resource location, period and / or duration configured by upper layer signaling (e.g. RRC signaling), the MAC layer signaling or activation UE triggers a measurement report of the beamformed CSI-RS.

[0062]

In another embodiment, the reference signal is a periodic non-precoded CSI-RS configured for a base station, wherein the resource location and period of the reference signal is configured by upper layer signaling (e.g. RRC signaling). beamformed CSI-RS and are arranged to trigger the base station (or activate) a reference signal periodically transmitted, wherein the reference signal resource location, period and / or duration configured by upper layer signaling (e.g. RRC signaling), and by physical layer signaling, such as a physical downlink control channel (PDCCH, physical downlink Control Channel), notifies the UE to activate or trigger a measurement report of the beamformed CSI-RS.

[0063]

In another embodiment, the reference signal is a periodic non-precoded CSI-RS configured for a base station, wherein the resource location and period of the reference signal is configured by upper layer signaling (e.g. RRC signaling). beamformed CSI-RS are arranged to trigger the base station and the reference signal (or activate) the aperiodic transmission, wherein the resource reference position signal, the number of transmissions, and / or duration configured by upper layer signaling (e.g. RRC signaling), and notifies the UE through the MAC signaling or activation trigger the measurement report of the beamformed CSI-RS.

[0064]

In another embodiment, the reference signal is a periodic non-precoded CSI-RS configured for a base station, wherein the resource location and period of the reference signal is configured by upper layer signaling (e.g. RRC signaling). beamformed CSI-RS are arranged to trigger the base station and the reference signal (or activate) the aperiodic transmission, wherein the resource reference position signal, the number of transmissions, and / or duration configured by upper layer signaling (e.g. RRC signaling), and notifies the UE through a physical layer signaling (e.g., PDCCH) to trigger or activate the measurement report of the beamformed CSI-RS.

[0065]

In the present embodiment, the base station arranged after the CSI-RS, may also notify the UE periodically or aperiodic feedback channel measurement required.

[0066]

In one embodiment, the triggered or activated when the first reference signal measurement result reported by the UE MAC layer signaling, the UE notifies the periodic feedback for the first reference signal or aperiodic feedback. And, it may inform the UE through higher layer signaling periodic feedback for a second reference signal, or informs the UE through the physical layer signaling for a second reference signal by the aperiodic feedback.

[0067]

For example, beamformed CSI-RS, the base station may simultaneously transmit beamformed CSI-RS (some time in advance can be transmitted), the UE MAC layer signaling activated by beamformed CSI-RS reports the measurement result, and notifies the UE periodic or aperiodic of CQI feedback.

[0068]

For non-precoded CSI-RS, CQI trigger period of the base station through higher layer signaling feedback (which may also include one or more of the PMI, RI, etc., one or more), or aperiodic feedback is triggered by physical layer signaling (e.g., PDCCH) .

[0069]

In another embodiment, the triggered or activated when the UE reports the measurement results of the first reference signal by a physical layer signaling, the UE notifies the periodic feedback for the first reference signal or aperiodic feedback. And a second periodic reference signal for a feedback, or reported by the physical layer signaling for a second UE aperiodic feedback reference signal the UE through higher layer signaling. .

[0070]

For example, non-precoded CSI-RS, CQI trigger period of the base station through higher layer signaling feedback (which may also include one or more of the PMI, RI, etc., one or more), or triggered by a non-physical layer signaling (e.g. PDCCH) periodic feedback.

[0071]

For beamformed CSI-RS, when the base station may transmit beamformed CSI-RS (some time in advance can be transmitted), UE reports the measurement result beamformed CSI-RS is triggered simultaneously by the physical layer signaling (e.g., PDCCH), or notify the UE periodically aperiodic CQI feedback.

[0072]

FIG 3 is a schematic diagram of another embodiment of a resource configuration method embodiment of the present invention is schematically illustrated for the case where the first reference signal. , Shown in Figure 3, the method comprising:

[0073]

Step 301, the base station by a first weighting factor beam reference signal resource allocation precoded;

[0074]

Step 302, the base station transmits the first reference signal by higher layer signaling resources.

[0075]

Step 303, the base station via physical layer signaling or MAC signaling message for triggering or activating a first user equipment reports the measurement results indicating a reference signal, and at the same time (or before) transmitting a first reference signal.

[0076]

Step 304, the user equipment detects the first reference signal and the measurement;

[0077]

Step 305, the user equipment performs the periodic feedback for the first reference signal or aperiodic feedback.

[0078]

FIG 4 is a schematic diagram of another embodiment of a resource configuration method of the present invention is schematically illustrated for the case where the second reference signal. , Shown in Figure 4, the method comprising:

[0079]

Step 401, the base station allocating resources to the second reference signal is not pre-coded by the beam weighting coefficient;

[0080]

Wherein the second reference signal may not be pre-encoded signal by the beam weighting coefficient, it may be pre-coded by the beam weighting coefficients (the UE does not know pre-coded) signal.

[0081]

Step 402, the base station transmits the second reference signal by higher layer signaling resources, and transmits the second reference signal.

[0082]

Step 403, the base station through higher layer signaling or physical layer signaling for activating or triggering a measurement result indicates that the second reference signal from the user equipment reports;

[0083]

Step 404, the user equipment detects the second reference signal and the measurement;

[0084]

Step 405, the user equipment periodically or aperiodically feedback for the second reference feedback signal.

[0085]

It is noted that, in FIG. 3 and FIG. 4 only schematically show the case where the first reference signal and a second reference signal, but the present invention is not limited thereto. Also, for example, the sequence of steps can be appropriately adjusted, and wherein the increase or decrease in one or more steps.

[0086]

Seen from the above embodiments, the base station performs resource allocation of the first reference signal precoded by the beam weighting coefficients, as well as a second reference signal configuration is not pre-coded resource precode or user equipment does not know by the beam weighting coefficient . Thus, 3D MIMO system can flexibly support multiple types of reference signals.

[0087]

Example 2

[0088]

Provides a reference signal resource allocation method of the present invention is applied to a user equipment 3D MIMO system. Embodiment of the present invention is the same content as Example 1 is omitted.

[0089]

FIG 5 is a schematic diagram of a reference signal resource allocation method according to an embodiment of the present invention, shown in Figure 5, the method comprising:

[0090]

Step 501, the user equipment receives the base station transmitted by the beam weighting coefficients a first reference signal resource allocation precoded, and no pre-coding, or user equipment does not know by the beam weighting coefficients for the second reference signal precoding the allocation of resources.

[0091]

These are described for the first reference signal and second reference signals.

[0092]

FIG 6 is a schematic diagram of another embodiment of a resource configuration method of the present invention is schematically illustrated for the case where the first reference signal. The method shown in Figure 6 comprises:

[0093]

Step 601, the user equipment receives the base station transmits a resource allocation is a first reference signal precoded by the beam weighting coefficient;

[0094]

Step 602, the user equipment receives via the base station MAC layer signaling or physical layer signaling for activating or triggering the transmission of a first reference signal measurement command of a user device reporting.

[0095]

Step 603, the user equipment of the first reference signal for channel measurement.

[0096]

Step 604, the user equipment performs the periodic feedback for the first reference signal or aperiodic feedback.

[0097]

E.g., UE after detecting the beamformed CSI-RS, which may be selected CSI-RS (e.g. there may be a plurality of different beam directions or the CSI-RS) channel in the best condition feedback CSI-RS. Feedback may include one or more content CSI-RS index corresponding to the beam, the beam parameters or other mark (e.g., port, resource, etc.), and the corresponding CQI, RI information.

[0098]

FIG 7 is a schematic diagram of another embodiment of a resource configuration method of the present invention is schematically illustrated for the case where the second reference signal. The method shown in Figure 6 comprises:

[0099]

Step 701, the resource of the second reference signal sent by the user equipment receives a base station configuration;

[0100]

Wherein the second reference signal may not be pre-encoded signal by the beam weighting coefficient, it may be pre-coded by the beam weighting coefficients (the UE does not know pre-coded) signal.

[0101]

Step 702, the user equipment receives the base station via physical layer signaling or the level used to trigger or activate the measurement result indicates that the second reference signal sent by the user equipment reports.

[0102]

Step 703, the user equipment on a second channel measurement reference signal;

[0103]

Step 704, the user equipment performs the periodic feedback for the second reference signal or aperiodic feedback.

[0104]

E.g., UE after detecting non-precoded CSI-RS, when the CSI-RS measurement based, in accordance with W = W1W2 precoding structure requiring feedback PMI estimation. Wherein, W1 of the PMI and W2 represent different, such as the vertical dimension and the horizontal dimension and the like, respectively, the values ​​from the codebook (Codebook) previously defined, W represents a UE is assumed that the end of a precoding matrix used for data transmission to the base station (Precoding Matrix ). After the UE PMI estimation, CQI may be calculated and / or RI information corresponding to the channel after the need for feedback.

[0105]

It is noted that, in FIG. 5 to FIG. 7 only schematically shows the operation of the user equipment side, but the present invention is not limited; for example, further steps may be appropriately adjusted in order to increase or decrease, and wherein one or more of the steps of . In addition, other steps associated with a base station not shown.

[0106]

In this embodiment, UE for a first reference signal and a feedback / or the second reference signal may have different priorities.

[0107]

In one embodiment, the user equipment may be performed in the order of precedence of feedback: the aperiodic feedback for the first reference signal, the periodic feedback for the first reference signal, the reference signal for the second aperiodic feedback, the feedback for the second periodic reference signal.

[0108]

For example, if the corresponding uplink feedback channel, such as a physical uplink control channel (PUCCH, Physical Uplink Control Channel) or a physical uplink shared channel (PUSCH, Physical Uplink Shared Channel), feedback occurs when the feedback Both CSI-RS corresponding CQI collision, according to the following priority (from highest to lowest priority) for CQI transmission.

[0109]

Aperiodic based beamformed CSI-RS measurement of CQI report;

[0110]

Periodic measurement based beamformed CSI-RS of CQI report;

[0111]

Aperiodic based non-precoded CQI-RS measurement of CQI report;

[0112]

Periodic CQI report based on the measured non-precoded CQI-RS.

[0113]

In another embodiment, the user equipment may also be carried out according to the following priority order feedback: aperiodic feedback for the first reference signal, aperiodic feedback for the second reference signal, for the first periodic feedback reference signal, feedback for the second periodic reference signal.

[0114]

For example, a collision occurs when both the feedback CSI-RS corresponding to the CQI feedback in an uplink feedback channel corresponding to (e.g. PUCCH or the PUSCH), a CQI transmission according to the following priority (from highest to lowest priority).

[0115]

Aperiodic based beamformed CSI-RS measurement of CQI report;

[0116]

Aperiodic based non-precoded CQI-RS measurement of CQI report;

[0117]

Periodic measurement based beamformed CSI-RS of CQI report;

[0118]

Periodic CQI report based on the measured non-precoded CQI-RS.

[0119]

In the present embodiment, separated by the CSI-RS resource configuration and the actual transmission of the CSI-RS, allows the system to support a first CSI-RS (beamformed CSI-RS) and a second CSI-RS (NON- precoded CSI-RS) is transmitted. Base stations simultaneously transmit a second configuration and CSI-RS for covering a large range, the base station configures a first CSI-RS resources, and the need for flexibility to CSI-RS transmitted through a signaling system according to activate. At the receiving end, the UE according to the CQI measurement and feedback signaling, when a plurality of conflicting reports CQI feedback, the feedback CQ performed according to a predetermined priority. Accordingly, the flexibility to support a variety of beam width and a reference signal corresponding to the CQI feedback.

[0120]

Example 3

[0121]

Provides a reference signal resource allocation apparatus according to the present invention, the base station arranged to 3D MIMO system. Embodiment of the present invention is the same content as Example 1 is omitted.

[0122]

FIG 8 is a schematic view of a resource allocation apparatus according to an embodiment of the present invention, shown in Figure 8, the resource allocation means 800 comprises:

[0123]

Resource allocation unit 801, a weighting factor by a first beam reference signal resource allocation precoding and precoding is not performed by a beam or user equipment does not know the weighting factor for the second reference signal resource allocation precoded;

[0124]

Configuring transmission unit 802, the allocation of resources of the first reference signal and the second reference signal resource is configured to the user equipment.

[0125]

In the present embodiment, the first reference signal and second reference signals can be distinguished by one of the following information or any combination thereof wherein: the resource location, time period and frequency port. However, the present invention is not limited thereto, and other information may be used to distinguish.

[0126]

8, the resource allocation means 800 may further comprise:

[0127]

Signal transmitting unit 803, after transmitting the first reference signal resource configuration, by activating or triggering a signaling transmitting the first reference signal; and transmitting the second transmission when the second reference signal resource allocation the reference signal.

[0128]

8, the resource allocation means 800 may further comprise:

[0129]

Signaling transmission unit 804, a message for triggering or activating the UE reports the first reference signal signaling the measurement results.

[0130]

In the present embodiment, the configuration of the transmission unit 802 may transmit a resource configuration of the first reference signal and the second reference signal by higher layer signaling.

[0131]

In the present embodiment, the signal transmitting unit 803 may periodically transmit the second reference signal; and the signal transmitting unit 803 may or aperiodically transmit the first reference signal periodically.

[0132]

In one embodiment, the signaling transmission unit 803 by the MAC layer signaling or physical layer signaling, or activation of the trigger UE reports a measurement result of the first reference signal.

[0133]

In one embodiment, the signaling transmission unit 803 may also be used to notify the UE through higher layer signaling periodic feedback for the second reference signal, or informs the UE through the second reference signal for the physical layer signaling aperiodic feedback.

[0134]

In one embodiment, the signaling transmission unit 803 may also be used to activate or trigger the UE reports a measurement result of the first reference signal by the MAC layer signaling, the UE notifies the first reference signal for a period of feedback or non-feedback; or triggered or activated when the UE reports the measurement result of the first reference signal by a physical layer signaling, the UE notifies the periodic feedback for the first reference signal or the aperiodic feedback .

[0135]

Embodiments of the invention further provides a base station, arranged above resource allocation means 800.

[0136]

FIG 9 is a schematic view of a configuration of a base station according to an embodiment of the present invention. As illustrated, base station 9900 may include: a central processing unit (the CPU) 200 and memory 210; a memory 210 coupled to the central processing unit 200. Wherein the memory 210 may store various data; also stores a program for information processing, and is executed under the control of the central processor 200.

[0137]

Wherein, the base station 900 may reference signal resource allocation method as described in Example 1 of the embodiment implemented. Central processor 200 may be configured to implement the function of resource allocation means 800; i.e., central processing unit 200 may be configured to control the following: beam weighting coefficients by a first reference signal resource allocation precoding, and is not the beam weighting coefficients for precoding or user equipment does not know the second reference signal has been precoded allocation of resources; and allocation of resources of the first reference signal and the second reference signal resource is configured to the user equipment.

[0138]

Further, as shown in Figure 9, base station 900 may further include: a transceiver 220 and antenna 230 and the like; wherein the functions of the above prior art similar member, not further described herein. Notably, the base station 900 is also not necessary to include all the components shown in FIG. 9; Base station 900 may further include components not shown in FIG. 9, reference may be prior art.

[0139]

Seen from the above embodiments, the base station performs resource allocation of the first reference signal precoded by the beam weighting coefficients, as well as a second reference signal configuration is not pre-coded resource precode or user equipment does not know by the beam weighting coefficient . Thus, 3D MIMO system can flexibly support multiple types of reference signals.

[0140]

Example 4

[0141]

It provides a reference signal resource allocation apparatus according to the present invention, a user equipment arranged to 3D MIMO system. EXAMPLE same content as Example 2 of the present invention will not be repeated.

[0142]

FIG 10 is a schematic view of a resource allocation apparatus according to an embodiment of the present invention, shown in Figure 10, the resource allocation means 1000 comprises:

[0143]

The receiving unit 1001 configured to receive the base station transmits a resource allocation is a first reference signal precoded by the beam weighting coefficients, and no pre-coding, or user equipment does not know by the beam weighting coefficients for the second reference signal precoding the allocation of resources.

[0144]

10, the resource allocation means 1000 may further comprise:

[0145]

Signal detection unit 1002, after receiving the resource configuration of the first reference signal, receiving the first reference signal upon detecting the measurement report signaling of the first reference signal; and receiving the second detecting the second reference signal when the second reference signal resource configuration.

[0146]

10, the resource allocation means 1000 may further comprise:

[0147]

Signaling receiving unit 1003 receives signaling for triggering or activating the first reference signal to the user equipment the measurement result report;

[0148]

1002 and detected signaling after receiving the said first signal of said reference signal detection means.

[0149]

10, the resource allocation means 1000 may further comprise:

[0150]

A measuring unit 1004, the first reference signal and / or the second reference signal for channel measurement;

[0151]

The feedback unit 1005, a reference signal for the second periodic feedback or non-feedback, and / or periodic feedback for the first reference signal or aperiodic feedback.

[0152]

In one embodiment, the feedback unit 1005 for a plurality of said first reference signal, selecting the best channel condition to the one or more first reference feedback signal.

[0153]

In one embodiment, the unit 1005 feeds back the feedback information for the second reference signal, wherein one or any combination: a channel quality indicator indicating a precoding matrix, a rank indication;

[0154]

In another embodiment, the information feedback unit 1005 feeds back the reference signal for the first one or any combination of: a beam information, channel quality indicator, a precoding matrix indication, rank indication.

[0155]

In one embodiment, the feedback unit 1005 in accordance with the order of precedence of feedback: the aperiodic feedback for the first reference signal, the periodic feedback for the first reference signal, for the second reference aperiodic feedback signal, the feedback for the second periodic reference signal.

[0156]

In another embodiment, the feedback unit 1005 in accordance with the order of precedence of feedback: the aperiodic feedback for the first reference signal, aperiodic feedback for the second reference signal, for the first periodic feedback of a reference signal, the periodic feedback for the second reference signal.

[0157]

Embodiments of the invention further provides a user equipment, comprising resource allocation means 1000 as described above.

[0158]

FIG 11 is a user apparatus according to an embodiment of the present invention, FIG. 11, the user device 1100 may include a central processor 100 and a memory 140; a memory 140 coupled to the central processor 100. Notably, the figure is exemplary; may also be used other types of structures, in addition to or instead of this configuration, in order to achieve the telecommunications functions or other functions.

[0159]

In one embodiment, the resource allocation means 1000 functions may be integrated into the central processor 100. Wherein the central processor 100 may be configured to control the following: the base station receives a resource allocation sent by the first reference signal precoded by the beam weighting coefficients, and no pre-coding, or user equipment does not know by the beam weighting coefficients performed a second reference signal resource allocation precoded.

[0160]

In another embodiment, the resource allocation means 1000 may be arranged separately from the central processor 100, for example, the resource allocation means 1000 is configured as a chip connected to the central processor 100, resource allocation is achieved by means of the control of the central processor 100 1000 function.

[0161]

11, the user device 1100 may further include: a communication module 110, an input unit 120, an audio processing unit 130, a memory 140, a camera 150, a display 160, a power source 170. Wherein the functions of the above prior art is similar to the member, will not be repeated here. Notably, the user device 1100 is also not necessary to include all of the components shown in FIG. 11, the above member is not essential; in addition, the user device 1100 may further include components not shown in FIG. 11, reference may now there are technical.

[0162]

Seen from the above embodiments, the user equipment by the base station receives a resource beam weighting factor precoded first reference signal configuration is not performed and a base station or user equipment precoding weighting coefficient by the beam does not know the first precoding performed second reference signal resource allocation. Thus, 3D MIMO system can flexibly support multiple types of reference signals.

[0163]

Example 5

[0164]

Embodiments of the invention further provides a communication system, as described in Example 1 to 4 the same content is omitted. FIG 12 is a communication system according to an embodiment of the present invention, a schematic diagram, shown in the communication system shown in FIG 121,200 comprising: a base station 1201 and user device 1202.

[0165]

Wherein the base station 1201 by the first beam weighting coefficients precoded reference signal configuration of resources, and is not performed by the user equipment precoding or beamforming weighting coefficients do not know the second reference signal has been precoded allocation of resources; and a transmission the resource configuration of the first reference signal and a second reference signal resources;

[0166]

Resource allocation apparatus 1202 receives the user first reference signal, resource configuration and the second reference signal.

[0167]

In the present embodiment, the first reference signal and second reference signals can be distinguished by one of the following information or any combination thereof wherein: the resource location, time period and frequency port.

[0168]

In the present embodiment, the base station after sending the first reference signal resource configuration, by activating or triggering a signaling transmitting the first reference signal; and transmitting when sending the second reference signal resource configuration the second reference signal.

[0169]

In the present embodiment, the base station may also send a trigger or activating the user equipment reports the first reference signal signaling the measurement results.

[0170]

Example embodiments provide a computer-readable program of the present invention, wherein when the program is executed in a base station, the program causing a computer to execute a reference signal resource allocation method according to the embodiment of Example 1 in the base station.

[0171]

Embodiment provides a computer-readable storage medium storing a program according to the present invention, wherein the computer-readable program causing a computer to execute a reference signal resource allocation method according to the embodiment in Example 1 in the base station.

[0172]

Example embodiments provide a computer-readable program of the present invention, wherein, when the program is executed in the user equipment, said program causing a computer to execute a reference signal resource allocation method according to the embodiment of Example 2, in the user equipment.

[0173]

Embodiment provides a computer-readable storage medium storing a program according to the present invention, wherein the computer-readable program causing a computer to execute a reference signal resource allocation method according to the embodiment of Example 2, in the user equipment.

[0174]

The above methods and apparatus of the present invention may be implemented by hardware, or combination of hardware and software. The present invention is directed to such computer-readable program, when the program is executed by a logic means, the logic means enables the apparatus described hereinabove or components implemented, or that the logic elements realized the various methods described above or steps. The present invention further relates to a storage medium for storing the above program, such as a hard disk, optical disk, DVD, flash memory or the like.

[0175]

Or more of the drawings for a combination of one or more of the functions described in the blocks and / or functional blocks, may be implemented as a general purpose processor for performing functions described in this application, a digital signal processor (DSP ), an appropriate application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any. One or more functional blocks in the drawings and described in one or more combinations / or functional blocks for, may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessing , one or more microprocessors in conjunction with a DSP communication, or any other such configuration.

[0176]

Above in connection with specific embodiments of the present invention has been described, it should be apparent to those skilled in the art, description are exemplary, not restrictive of the scope of the present invention. Those skilled in the art can make various variations and modifications of the invention in accordance with the spirit and principles of the invention, such variations and modifications are scope of the invention.

Claims

[Claim 1]

Resource allocation apparatus for a reference signal, the base station arranged in the 3D MIMO system, comprising: a resource allocation unit, the beam by a first weighting factor precoded reference signal resource allocation and by the beam has not been pre-weighting coefficient encoding or user equipment does not know the second reference signal has been precoded allocation of resources; transmitting resource allocation means the allocation of resources to the first reference signal and the second reference signal configuration to the user equipment.

[Claim 2]

Said resource allocation apparatus according to claim 1, wherein the first reference signal into one or more, the second reference signal into one or more; the first reference signal and the second reference signal distinguished by one of the following information or any combination thereof wherein: the time-frequency resource position, and the port cycle.

[Claim 3]

Said resource allocation apparatus according to claim 1, wherein said apparatus further comprises a resource configuration: a signal transmitting unit, after sending the first reference signal resource configuration, by activating or triggering a signaling transmitting the first reference signal; and transmitting the transmission when the second reference signal the second reference signal resource allocation.

[Claim 4]

Resource allocation apparatus according to claim 3, wherein said resource configuration means further comprising: a signaling transmission unit transmits the signaling for triggering or activating the user equipment reports the measurement results of the first reference signal.

[Claim 5]

The resource allocation apparatus according to claim 1, wherein the resource allocation configuration of the first transmission unit transmits the reference signal and the second reference signal by higher layer signaling.

[Claim 6]

A first reference signal and the signal transmitting unit periodically or non-periodically transmit the; resource configuration apparatus as claimed in claim 4, wherein the signal transmitting unit periodically transmits the second reference signal .

[Claim 7]

Said resource allocation apparatus according to claim 6, wherein the signaling transmission unit through a media access control layer i.e. a MAC layer signaling or physical layer signaling, or to trigger activation of the first user equipment reports the measured reference signal result.

[Claim 8]

The resource allocation apparatus of claim 4, wherein the signaling unit is further for notifying the user equipment through higher layer signaling periodic feedback for the second reference signal, or reported by the physical layer signaling the user equipment performing aperiodic feedback for the second reference signal.

[Claim 9]

Resource allocation apparatus according to claim 7, wherein the signaling unit is further configured to activate or trigger when the user equipment reports the measurement results of the first reference signal by the MAC layer signaling, notifying the user or non-periodic feedback device for feedback of the first reference signal; or, when triggered by the activation of the physical layer signaling or user equipment reports the measurement result of the first reference signal, for notifying the user equipment the first reference signal is a periodic or aperiodic feedback feedback.

[Claim 10]

Resource allocation apparatus for a reference signal, the user equipment arranged 3D MIMO system, comprising: a receiving unit configured to receive the base station transmits the resource allocation is performed first reference signal precoded by the beam weighting coefficients, and not by the beam precoding weighting factor or the user equipment does not know the second allocation of resources has been precoded reference signal.

[Claim 11]

The resource allocation apparatus of claim 10, wherein said apparatus further resource configuration comprises: a signal detection unit, after receiving the resource configuration of the first reference signal, said first received signaling indication reports reference the detection signal when the measurement result of the first reference signal; and detecting the second reference signal upon receiving the second reference signal resource allocation.

[Claim 12]

The resource allocation apparatus of claim 11, wherein said apparatus further resource configuration comprises: a signaling receiving means, receiving the trigger or activate the user equipment reports the measurement results of the first signaling signal for reference; and the first reference signal is detected in the signal detection unit after receiving the signaling.

[Claim 13]

Resource allocation apparatus according to claim 11, wherein said resource configuration means further comprising: a measurement unit of and / or the second reference signal said first reference signal for channel measurement; feedback means, for the the second reference signal is a periodic or aperiodic feedback feedback, and / or periodic feedback for the first reference signal or aperiodic feedback.

[Claim 14]

The resource allocation apparatus according to claim 13, wherein said feedback unit for a plurality of said first reference signal, selecting the best channel condition or a plurality of first reference feedback signal.

[Claim 15]

The resource allocation apparatus according to claim 13, wherein the feedback unit feeds back information to the second reference signal for one or any combination of: a channel quality indicator indicating a precoding matrix, a rank indicator; the feedback information feedback unit as the first reference signal for one or any combination of: a beam information, channel quality indicator, a precoding matrix indication, rank indication.

[Claim 16]

The resource allocation apparatus according to claim 13, wherein the feedback unit in accordance with the order of precedence of feedback: the aperiodic feedback for the first reference signal, the feedback for the first periodic reference signal, aperiodic feedback for the second reference signal, the periodic feedback for the second reference signal; or aperiodic feedback for the first reference signal, non-periodic second reference signal for the feedback, periodic feedback for the first reference signal, the periodic feedback for the second reference signal.

[Claim 17]

A communication system, said communication system comprising: a base station, performed by the first reference signal resource allocation precoding beam weighting coefficients, and the pre-coded to no precoding by a beam or user equipment does not know the weighting factor a second reference signal allocation of resources; and a resource allocation of resources for sending the first reference signal and said second reference signal; user equipment, resource configuration to receive the first reference signal, and the second reference signal the allocation of resources.

[Claim 18]

The communication system according to claim 17, wherein the first reference signal into one or more, the second reference signal into one or more; the first reference signal and the second reference signal wherein one or any combination of the following information to distinguish: time-frequency resource position, and the port cycle.

[Claim 19]

The communication system according to claim 17, wherein the base station after sending the first reference signal resource configuration, by activating or triggering a signaling transmitting the first reference signal; and transmitting the second reference sending the second reference signal resource configuration signal.

[Claim 20]

The communication system according to claim 17, wherein the base station further transmits a user for triggering or activating the signaling apparatus of the first reference signal reporting measurement results.