0001]This application claims the April 1, 2016 filed Chinese Patent Application No. 201610204474.7, entitled "Method and electronic device for an electronic apparatus, the information processing apparatus" filed Chinese patent application in its entirety by hereby incorporated by reference in the present application.
FIELD
[0002]It relates to wireless communication field [0001] Embodiments of the present invention, in particular, to a three-dimensional multiple input multiple output (3D MIMO) technology, and more particularly, to the use of beam-forming channel state information reference signal (Channel State Information-Reference Signal, CSI-RS ) technology electronic device and a method for an electronic device and an information processing apparatus.
Background technique
[0003]
Typically, adjacent cells use different channel state information reference signal (CSI-RS) configuration, the position of neighboring cells CSI-RS resources corresponding to frequency staggered to avoid interference CSI-RS.
[0004]
In 3D MIMO technology, a plurality of antenna ports to be given different weights in generating the 3-dimensional beam direction, called beamforming. Beamforming CSI-RS is different from the non-coding CSI-RS. The CSI-RS non-coding scheme for all user equipments using a common full CSI-RS ports. Beamforming and CSI-RS may be a user equipment (i.e., UE-Specific, UE-specific beamforming) or beams (i.e., Cell-Specific, cell-specific beamforming) assigned to a plurality of CSI-RS ports.
[0005]
SUMMARY
[0006]
A brief overview of the present invention hereinafter in order to provide a basic understanding of some aspects of the present invention. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to identify key or critical part of the invention, nor is it intended to limit the scope of the present invention. Its sole purpose is to present some concepts in a simplified form, as a prelude to the more detailed description that is discussed later.
[0007]
According to one aspect of the present disclosure, there is provided an electronic device, comprising: a processing circuit, the processing circuit is configured to: allow a cell to use configuration different CSI-RS of the a cell of own channel state information reference signal CSI-RS frequency resource for data transmission of at least a portion of the idle configuration corresponding port CSI-RS.
[0008]
According to another aspect of the present disclosure, there is provided an information processing apparatus, comprising: an antenna configured to neighboring cells from a base station of a cell usage information comprises receiving the neighboring cell CSI-RS port; and a processing circuit configured to: determine based on the information received by the antenna port usage CSI-RS of neighboring cells and determining idle CSI-RS ports corresponding to respective CSI-RS configuration of frequency resource usage based on the port, and at least a part of frequency resources for data transmission in one cell is allowed to use a configuration of the cell's own channel state information reference signal CSI-RS CSI-RS configuration different idle port corresponding to the CSI-RS.
[0009]
According to another aspect of the present disclosure, there is provided an electronic apparatus comprising a processing circuit configured to: based on the message received from the base station apparatus determines a user can be used for self CSI-RS with the base station using the data transmission arrangement different configuration of CSI-RS idle CSI-RS ports corresponding to frequency resources; and generates a feedback message to the user equipment.
[0010]
According to another aspect of the present application, it is also provided an information processing apparatus, comprising: an antenna configured to receive a message from a base station; and a processing circuit configured to: based on the message received by the antenna can be used to determine a user equipment CSI-RS itself and the base station uses for data transmission to the idle configuration different from the configuration of the CSI-RS when the CSI-RS ports corresponding to frequency resources; and generating a feedback message comprising the user equipment, wherein said antenna further configured to transmit the message comprising user equipment feedback to the base station.
[0011]
According to another aspect of the present application also provides an electronic device, comprising: a memory configured to store the usage of each port of the CSI-RS cells; processing circuit configured for each cell to determine which neighboring CSI-RS port usage of the cell.
[0012]
According to another aspect of the present disclosure, a method is also provided for an electronic device, comprising: allowing a cell to use a cell with the self channel state information reference signal CSI-RS configuration idle different configuration of CSI-RS at least a portion of the CSI-RS ports corresponding to the time-frequency resources for data transmission.
[0013]
According to another aspect of the present disclosure, a method is also provided for an electronic device, comprising: a base station based on the received message from the user equipment can be used for determining the CSI-RS itself with the base station using different data transmission arrangement CSI-RS configuration when idle CSI-RS ports corresponding to frequency resources; and generates a feedback message to the user equipment.
[0014]
According to another aspect of the present disclosure, a method is also provided for an electronic device, comprising: memory cells each of the CSI-RS port usage; for each cell, adjacent cells to determine the port of the CSI-RS usage.
[0015]
Other aspects according to the present invention there is also provided a computer program product and a computer program codes for implementing the above-described method for an electronic device and having recorded thereon a computer program code for an electronic apparatus of the above-described methods for implementing the readable storage medium.
[0016]
In an embodiment of the present application, through the use of other free CSI-RS configuration of frequency resources CSI-RS ports corresponding to data transmission, can take advantage of idle resources the CSI-RS, without causing significant CSI-RS interference the case of resource efficiency.
[0017]
Detailed description of the preferred embodiments of the present invention in conjunction with the following drawings, the above and other advantages of the present invention will become more apparent.
BRIEF DESCRIPTION
[0018]
To further illustrate the above and other advantages and features of the present invention, the following drawings of specific embodiments of the present invention will be further described in detail in conjunction. The drawings together with the detailed description are included in the present specification and a part of this specification is formed. Elements having the same function and structure are denoted with the same reference numerals. It should be understood that a typical example of the present invention that these drawings depict only, and should not be considered as limiting the scope of the present invention. In the drawings:
[0019]
FIG 1a shows a schematic diagram of adjacent cells in a CSI-RS configuration;
[0020]
Figure 1b shows a schematic diagram for illustrating an example of data transmission according to the use of free CSI-RS resource embodiment of the present disclosure;
[0021]
FIG 2 shows a schematic view of a waste of resources in a CSI-RS beamforming scheme;
[0022]
3 illustrates a block diagram of a functional module of the electronic apparatus according to an embodiment of the present disclosure;
[0023]
4 illustrates a block diagram of a functional module of the electronic apparatus according to an embodiment of the present disclosure;
[0024]
5 illustrates a block diagram of functional modules of an electronic device according to another embodiment of the application;
[0025]
FIG 6 shows an example of the form of the indication message;
[0026]
FIG. 7 shows another example of the form of the indication message;
[0027]
FIG 8 illustrates another example form of the indication message;
[0028]
9 illustrates another example form of the indication message;
[0029]
Figure 10 shows a block diagram of functional modules of an information processing apparatus according to an embodiment of the present disclosure;
[0030]
11 illustrates a block diagram of a functional module of the electronic apparatus according to an embodiment of the present disclosure;
[0031]
Figure 12 shows a block diagram of functional modules of an information processing apparatus according to an embodiment of the present disclosure;
[0032]
13 illustrates a block diagram of a functional module of the electronic apparatus according to an embodiment of the present disclosure;
[0033]
FIG 14 shows a flowchart of a method for an electronic apparatus according to one embodiment of the present application;
[0034]
FIG 15 shows a flowchart of a method for an electronic apparatus according to another embodiment of the present disclosure of the embodiment;
[0035]
FIG 16 shows a flowchart of a method for an electronic device of still another embodiment of the present disclosure;
[0036]
FIG 17 shows an example of information flow between the base station and the user equipment and the base station;
[0037]
FIG 18 shows another example of information flow between the base station and the user equipment and the base station;
[0038]
19 shows another example of information flow between the base station and the user equipment and the base station;
[0039]
FIG 20 shows one example of the setting information flow in the central management apparatus case;
[0040]
FIG 21 shows another example of the setting information flow in the central management apparatus case;
[0041]
22 shows another example of the setting information flow in the central management apparatus case;
[0042]
FIG 23 is a schematic block diagram illustrating a first exemplary configuration of an eNB in ​​the art may be applied is shown according to the present disclosure;
[0043]
FIG 24 is a block diagram of the second example of a schematic configuration of the eNB art shows the present disclosure may be applied;
[0044]
FIG 25 is a block diagram illustrating an example of a schematic configuration of a smart phone art shows the present disclosure may be applied;
[0045]
FIG 26 is a schematic block diagram illustrating the configuration of the car navigation apparatus shown art may be applied to the present disclosure; and
[0046]
FIG 27 is a block diagram of an exemplary configuration of a personal computer according to the general method of Example of the present invention and / or devices and / or systems may be implemented.
Detailed ways
[0047]
The exemplary embodiment of the present invention will be described below in conjunction with the accompanying drawings. For clarity and conciseness, in the specification are not all features of an actual implementation. However, it should be understood that many decisions must be made to the specific embodiments of the development of any such actual embodiment of the process in order to achieve the developer's specific goals, such as compliance with those restrictions related systems and services, and these restrictions may be subject to change with different embodiments. In addition, it should be understood that, although the development work can be very complex and time-consuming, but the benefit of this disclosure to those skilled in the, this development is only a routine task.
[0048]
Here, also be noted that, in order to avoid unnecessarily obscuring the details of the present invention, the drawings only shows a solution according to the present invention closely related to the device structure and / or processing steps, omitted Further details of the present invention has little relationship.
[0049]

[0050]
FIG 1a shows an adjacent cell, a schematic diagram of frequency resource allocation when the cell 2 and cell CSI-RS 3 configuration. Herein, CSI-RS configuration may refer to the position of frequency resources when the CSI-RS is allocated. In Figure 1a, each cell CSI-RS configuration includes eight ports (represented by No. 0-7), each port corresponding to a time-frequency resource unit, i.e., each CSI-RS corresponding to the configuration of FIG. 1a 8 to time-frequency resource unit (resource element, RE), the number represents the sequence number corresponding to each RE of CSI-RS ports. It should be noted that only a representative number of figures here, not the actual port number, for example, the actual port 8 CSI-RS ports configuration used is 15-22. Specifically, each port CSI-RS cells 1 arranged corresponding to the gray filled REs, each port CSI-RS cells 2 arranged corresponding to the black dots filled REs, each port CSI-RS cells 3 arranged corresponding to horizontal lines filled RE. For each cell, it does not transmit any information on other cells corresponding to the configuration of CSI-RS RE, FIG hatched fill the box to indicate this.
[0051]
When using the cell CSI-RS beamforming scheme, the cell does not have all of the CSI-RS ports CSI-RS configuration. In other words, when the CSI-RS ports corresponding to certain frequency resources are idle, resulting in a serious waste of resources. In Cell-Specific beamforming, for example, a number of active sub-frame beams usually less than the number of beam configuration, when configured to use a non-periodic time CSI-RS, will be more serious waste of resources. Note that, in this specification, unless otherwise specified, may be a macro cell and a small cell-cell and, where appropriate, also known as cell base stations. In the present specification, when the CSI-RS ports corresponding to frequency resources is referred to as a CSI-RS resources, or resources CSI-RS ports.
[0052]
FIG 2 shows a schematic view of a waste of resources in a CSI-RS beamforming scheme. Wherein, the base station 1, base stations 2 and 3 use different CSI-RS configuration to avoid inter-cell interference CSI-RS. Suppose a CSI-RS configuration includes eight CSI-RS ports, the use of a beam 2 forming CSI-RS ports, solid beam represents a beam in service, i.e. an active state, the hollow beam represents a beam in the idle state. For example, the base station 2 has two active beams, two beams in an idle state, it is resource elements 4 CSI-RS time-frequency (hereinafter simply referred to as CSI-RS resource) are not used. Similarly, the base station 3 has four unused CSI-RS resource. In a base station has a plurality of adjacent base stations, the waste of resources will be more serious.
[0053]
If the user equipment to the base station a lot of services, use of time-frequency resources of adjacent base stations are not CSI-RS used for data transmission will be very significant. The present disclosure provides techniques implemented with an idle CSI-RS resource for data transmission.
[0054]
Further, in addition to the CSI-RS neighboring base station unused frequency resource, the base station 1 may use its own idle frequency resources CSI-RS. However, when the base station is hereinafter focused on the use of free CSI-RS configuration of a neighboring base station frequency resource situation, it should be understood that this is not limitative, CSI-on with or without the use of the present invention itself can not understand RS configured idle time limit has made any provision or frequency resources.
[0055]
On the other hand, although in the example of FIG. 2, different neighboring cells (or base stations) using the CSI-RS configuration, but adjacent cells can use the same configuration, and a CSI-RS CSI to reduce or eliminate by other techniques -RS interference, but this does not affect the application of the application of technology. To take advantage of the idle due to CSI-RS resource for data transmission in terms of a cell, which is to be utilized in a cell free CSI-RS resources are not important, only needs to know the cell CSI-RS resource to the idle position . Meanwhile, since the CSI-RS configuration is fixed and there are a limited number of modes, thus may be configured to identify the CSI-RS resource unit in the idle CSI-RS.
[0056]
FIG. 3 shows a functional block diagram of electronic apparatus of an embodiment of the present application 100 according to the electronic device 100 comprising: allowing unit 101, configured to allow a cell using the configuration different from the one cell itself a CSI-RS at least a part of frequency resources for data transmission when the CSI-RS configuration idle port corresponding to the CSI-RS. Hereinafter, the operation will be performed for which the "one cell" is referred to this cell.
[0057]
The electronic device 100 may be located at a base station side, for example, a cell or base station coupled in communication with, the coupling may be wired or wireless.
[0058]
Since the terms for a cell, which uses CSI-RS configuration is known, therefore, the present cell itself CSI-RS configuration different CSI-RS configuration (hereinafter also referred to as a CSI-RS configuration other) also can be known while these other CSI-RS configurations idle CSI-RS ports corresponding to frequency resources may be used by the cell for data transmission. Wherein, the cell can use all the idle CSI-RS resource for data transmission, in which only a portion may be used, depending on the actual needs or configuration.
[0059]
Further, as described above, the present cell may be used own idle CSI-RS resource for data transmission. At least a part of frequency resources for data transmission In this case, the permitting unit 101 is configured to allow the free use of all of this cell CSI-RS configuration of a CSI-RS corresponding port.
[0060]
On the other hand, the use of cell free CSI-RS resources is not limited to the above embodiment, for example, such that the cell unit 101 may allow the use of frequency resources directly above. In other words, it may be provided: a cell that uses its resources idle CSI-RS (or predetermined) for data transmission (CSI-RS resource idle herein may comprise the CSI-RS idle resources of the cell configuration of CSI-RS , may not be included). Subsequently, after obtaining the information on the actual CSI-RS free resources, based on the information to adjust or terminate the use of the free resources for the CSI-RS's. For example, in the case of CSI-RS resource for data transmission is actually being used, will stop using the time-frequency resources for data transmission.
[0061]
In one example, the actual information about the CSI-RS free resources from neighboring cells. As shown in phantom in FIG. 3, the electronic device 100 further includes: a determination unit 102, configured to determine the neighboring cell of the cell CSI-RS port usage and determine respective CSI-RS port based on the use of CSI-RS configuration idle port corresponding to frequency resources.
[0062]
Wherein adjacent cell interference may be a cell within the scope of the present cell, or a neighboring cell adjacent to the local cell in the geographical cell. For a cell, if no other cells within the interference range which, in theory, the cell using a different frequency resources may be any CSI-RS itself CSI-RS configuration corresponding to the configuration of the data transmission. However, due to its interference within the range of usually always have the other cell, therefore, necessary to avoid interference with the CSI-RS transmission of these cells, i.e., idle CSI-RS ports corresponding to these cells CSI-RS configuration using only frequency resource for data transmission.
[0063]
In a wireless communication system, the number of types of CSI-RS configuration is limited, for example, in a CSI-RS configuration each comprising 8 where the CSI-RS ports, a total of 5 CSI-RS configuration. And when the CSI-RS configuration allocated for each cell, generally assigned as far as an adjacent cell of a different CSI-RS CSI-RS is configured to avoid interference. Thus, by using the port statistics of all the neighboring cells the CSI-RS, generally available idle condition of each CSI-RS configuration of CSI-RS ports. The idle condition information includes, for example, CSI-RS configuration in which CSI-RS ports in an idle state. In one example, for two or more neighboring cells using the CSI-RS configuration, having a spare port corresponding to the CSI-RS least neighboring cells idle CSI-RS port CSI-RS configuration of a frequency number of idle resources CSI-RS ports corresponding to the number of resources as the frequency of the CSI-RS configuration. In other words, the number of idle CSI-RS port CSI-RS configuration having a plurality of values ​​in a plurality of adjacent cells, wherein the minimum value as the number of free CSI-RS ports of the CSI-RS configuration.
[0064]
In the case where the CSI-RS configuration shown in FIG. 1a for example, many cell 1 to the user equipment so that a desired frequency resources and services used CSI-RS neighboring cell unused for data transmission, determination means cell 102 determines the CSI-RS ports 2 4-7 idle, CSI-RS ports 4-7 idle cell 3, i.e., cells 2 and 3 do not actually use their CSI-RS configuration of CSI-RS ports corresponding 4-7 time-frequency resource transfer CSI-RS. Thus, the cell 1 may be used when the frequency with which CSI-RS ports corresponding to the idle resource for data transmission. 1b, instead of filling with a slash, the grid can be used to populate these REs, 1 indicates a cell using these idle CSI-RS resource unit for data transmission. It should be understood that Figure 1b is merely an example, other cells, the similar operation can be performed. And, FIGS. 1a and 1b only shows a conventional cyclic prefix (CP) in OFDM sub-frame as an example, the present technique is equally applicable to the case of using other types of OFDM subframe.
[0065]
In one example, the determination unit 102 may be configured to obtain the neighbor cell using the CSI-RS ports according to circumstances X2 signaling from the base station of the neighboring cell.
[0066]
For example, an X2 signaling may ENB CONFIGURATION UPDATE message, the ENB CONFIGURATION UPDATE indication included in each condition of use CSI-RS CSI-RS cells in port configuration information of the neighboring cell information. Illustratively, the information element may be included in the information unit Served Cell Information ENB CONFIGURATION UPDATE message, such as adding a new information element in the information unit Antenna_ports_usage.
[0067]
For example, the information element may have the form of a bitmap, the bitmap bits determined according to the number of CSI-RS ports of CSI-RS configuration. 8 having the configuration where the CSI-RS ports of CSI-RS, the bitmap may have 8 bits. Bitmap may be a bit of 0 indicates that the corresponding CSI-RS ports is not used, a bitmap indicates that the corresponding bit is a CSI-RS ports is being used. Of course, the opposite may also be employed definitions.
[0068]
In another example, the determining unit 102 may acquire usage CSI-RS ports of neighboring cells according to the message from the central processing unit. In this example, for example, a central processing unit is provided to collect usage CSI-RS ports of each cell CSI-RS configuration, and to provide the use of its neighboring cells CSI-RS configuration of CSI-RS ports of each cell . The central processing unit may be coupled to a base station for each cell via the wired or wireless communication. The central processing unit may be located on a core network or a server.
[0069]
Or when, CSI-RS port usage central processing unit cells can be collected for each CSI-RS configurations for further processing, for example, to obtain the corresponding free CSI-RS CSI-RS ports each configured for a cell of a frequency information resources idle CSI-RS ports corresponding to resource or other information in addition to the CSI-RS CSI-RS configuration of the cell configuration frequency, and supplies this information to the appropriate cells. In this case, the determination unit 102 may determine the message directly from the central processing unit from the idle CSI-RS ports corresponding to respective CSI-RS configuration of frequency resources.
[0070]
In addition, the central processing unit may be further processed to obtain the cell for one cell can be used for other data transmission CSI-RS configuration information (CSI-RS configuration or individual) is idle time-frequency resource corresponding to the CSI-RS ports and provide this information to the appropriate cells. In this case, the determination unit 102 may be idle time-frequency resources corresponding to the CSI-RS ports of the respective data transmission CSI-RS configuration message directly from the central processing unit determines can be used.
[0071]
100 in respective units of the electronic device, for example, may be implemented by one or more processing circuits, for example, the processing circuit may be implemented as a chip.
[0072]
In the present embodiment, the electronic device 100 can be utilized by such cell frequency resources corresponding to the CSI-RS ports of other idle CSI-RS configuration for data transmission and improve the utilization efficiency of the CSI-RS resources.
[0073]

[0074]
As described above, unit 101 may be allowed to perform an operation based on the determination result of the determination unit 102, may be determined prior to operation or operations before the appropriate changes based on the determination of whether to continue the determination unit 102.
[0075]
In one example, allowing determination unit 101 does not allow any use of the idle cell CSI-RS ports corresponding to other CSI-RS configuration of frequency resources. Alternatively, the permitting unit 101 to permit or idle CSI-RS ports corresponding to other cell CSI-RS configuration prohibit the use of frequency resources in accordance with certain conditions, will be described below with reference to FIG.
[0076]
FIG 4 shows a functional block diagram of one embodiment of an electronic device 200 according to the present application, in addition to the respective units shown in FIG. 3, the electronic device 200 further includes: a judging unit 201, configured to determine idle CSI-RS a first port corresponding to the predetermined condition is satisfied when the frequency resources; and in the case of satisfying a first predetermined condition, permitting unit 101 is corresponding to the CSI-RS ports using the present cell allows at least a portion of the idle time-frequency resources for data transmission.
[0077]
Similarly, the respective units of the electronic device 200 may be implemented, for example, through one or more processing circuits, for example, the processing circuit may be implemented as a chip. 200 may be located in a cell of the base station side of the electronic device, or with a wired or wireless manner to a base station communicatively coupled.
[0078]
For example, in the case allowed only more idle resources of the cell using the CSI-RS CSI-RS resource idle part or all of data transmission. Illustratively, a first predetermined condition is at least a portion configured CSI-RS, when idle CSI-RS ports corresponding cell can be used by the sum of the number of frequency resources exceeds a first predetermined threshold value.
[0079]
The number of all idle time-frequency resources corresponding to the CSI-RS ports in one example, CSI-RS all first predetermined condition is different from the present configuration of the cell itself and a CSI-RS configuration exceeds a first predetermined threshold value, for example the following formula:
[0080]
[0081]
Wherein, R & lt i represents a CSI-RS configuration i is the number of available resource, to a first predetermined threshold value Th1, where Th1 e.g. depending on the consumption of signaling bits, the use of free CSI-RS resource data transmission to improve data throughput, it is desirable The maximum data throughput to enhance the proportion of other factors.
[0082]
In another example, at least a portion of the CSI-RS configuration may include the number of its idle port CSI-RS exceeds a predetermined value CSI-RS configuration, called an idle CSI-RS configuration. In the present embodiment, the idle CSI-RS ports can be used by the cell is defined as a non-idle CSI-RS ports present in the cell CSI-RS configuration. Thus, where the idle CSI-RS configuration refers to satisfy the aforementioned idle CSI-RS ports defined amount, this cell non-CSI-RS configuration of CSI-RS configuration. In this case, the first predetermined condition may be represented by the following formula (2) below.
[0083]
[0084]
In addition, a portion may be provided only frequency resource is allowed idle idle CSI-RS configuration corresponding to the CSI-RS ports. For example, each free CSI-RS configuration number of idle time-frequency resources corresponding to the CSI-RS ports can be used by the cell value of less than or equal to a predetermined fixed value. In this case, the sum of the number as the product of the number of the fixed value of the idle CSI-RS configuration. The first predetermined condition can be represented by the following formula (3) below.
[0085]
[0086]
Wherein, C i represents the number of resources that can be utilized free CSI-RS configuration i, and for each of the idle configuration in terms of CSI-RS, are the value of C, N is the number of idle CSI-RS configuration.
[0087]
Further, when the determination unit 201 may be further configured to determine CSI-RS ports idle time-frequency resource corresponding to whether the second predetermined condition is satisfied, and the second predetermined condition is satisfied, the cell permitting unit 101 prohibits the use of this idle CSI- RS ports when the corresponding time frequency resources for data transmission.
[0088]
During the time when or whether the judgment unit 201 may be configured to use CSI-RS ports in the cell free frequency resource for data transmission, determines an idle CSI-RS ports corresponding to a second frequency resource satisfies a predetermined condition is satisfied, and the first the two predetermined conditions are allowed to prohibit unit 101 time-frequency resources corresponding to the CSI-RS ports of the present cell using the idle data transmission.
[0089]
For example, using an idle cell is prohibited CSI-RS resource for data transmission with less idle CSI-RS resource. When the example, the second predetermined condition is at least a portion configured CSI-RS, that can be used by the idle cell CSI-RS ports corresponding to the number of frequency resources and below a second predetermined threshold value. Wherein the calculated number of time-frequency resource and may employ one or more of the various ways, and may be the same calculation when the first predetermined condition determination mode may be different, this is not limitative , but may depend on the actual application is selected.
[0090]
The second predetermined threshold value, for example, depending on the consumption of signaling bits, the use of free resources for transmission of CSI-RS data increase data throughput, a minimum data throughput desired lift percentage factors. It may be less than a second predetermined threshold value a first predetermined threshold value.
[0091]
Further, when used in the cell idle CSI-RS ports of the frequency resources during the data transmission, the determining unit 102 may be further configured to periodically update the usage CSI-RS ports of CSI-RS configuration. This is because each cell CSI-RS port usage changes in real time, periodically updating the use condition can be more accurately obtained CSI-RS idle port. Thus, the idle adjusted accordingly for data transmission when the CSI-RS ports of frequency resources will help to further reduce interference to neighboring cells transmitting the CSI-RS.
[0092]
It should be noted that the various CSI-RS ports used for adjacent cell assigned to it CSI-RS configuration is not affected by the art of the present application, i.e., adjacent cells can use any CSI- configurations which CSI-RS RS ports, regardless of whether the CSI-RS ports of other cells being used for data transmission. When using a cell free data transmission CSI-RS resources of neighboring cells, if the neighboring cell to start using the free CSI-RS CSI-RS transmission resources, the delay due to processing, may be present within a certain time cell current data transmission interference, but the interference due to data transmissions of resource elements only a small part, so that disturbance within an acceptable range. Subsequently, the cell detected in the present CSI-RS resources not used by idle stop using CSI-RS resource used to transmit data, or idle CSI-RS resources to other neighboring cells continue to transfer data.
[0093]
In the present embodiment, data transmission by using the idle condition in a specific CSI-RS resource can be optimized using a CSI-RS resource idle, improving the utilization efficiency of the CSI-RS resource.
[0094]

[0095]
FIG. 5 shows a functional block diagram of another electronic apparatus of the present embodiment application 300 according to FIG. 3 except that the addition unit 101 to allow electronic device 300 further includes: message generating unit 301, configured to generate indication message for an idle resource when CSI-RS ports corresponding to the user equipment an indication of the present cell can be used in frequency. Furthermore, although not shown in FIG. 5, the electronic device 300 may further include a determination unit 102 previously described, any one of the determination unit 201.
[0096]
Similarly, the electronic device 300, for example, respective units may be implemented by one or more processing circuits, for example, the processing circuit may be implemented as a chip. The electronic device 300 may be located at a base station side, for example, a cell or base station in a wired or wireless manner communicatively coupled.
[0097]
In one example, the indication message includes the number of each CSI-RS configuration of CSI-RS idle user equipment usable frequency resource corresponding to the port information. Since the rules used for the CSI-RS ports of understanding between the base station and the user equipment is the same, for example, a user equipment which is known to preferentially use the CSI-RS ports, such as the case of using CSI-RS configuration according to a fixed sequence, For example, when requiring only four ports, ports 0-3 may be used first. Therefore, the amount of information known at the time-frequency resources idle CSI-RS ports corresponding to the user equipment can be used, to determine the location of the resource unit when the frequency to be used, thereby using these time-frequency resources for data transmission.
[0098]
Wherein idle CSI-RS ports corresponding to the user equipment is able to use all of the frequency resources may be idle CSI-RS resource, which may be only a portion, which may for example by the determination unit 102 according to actual needs or requirements, etc. determined in advance . For example, it is determined that the same may be a first predetermined condition to determine the manner and CSI-RS resource idle user equipment can be used.
[0099]
Format indication message can have a variety of forms. 6 to FIG. 9 shows an example of the form of the indication message. FIG 6 illustrates an example of a more complete indication message, wherein the indication message includes CSI-RS configurations respective bitmap information whether there is an idle CSI-RS port can be used, i.e., the first X bits of FIG. Bit bitmap corresponding to 0 indicates that the corresponding idle CSI-RS CSI-RS configuration is not available or no idle CSI-RS. Further, after the X-bit, Y bits to represent respectively the number of idle resource CSI-RS ports each corresponding to a CSI-RS can be configured to use frequency. Can be the corresponding number of 0 indicates that the corresponding CSI-RS CSI-RS configured idle or non-idle unavailable CSI-RS.
[0100]
Wherein the total number of bits of the bit map arranged CSI-RS is determined by, for example, at a total of five cases of CSI-RS configuration, the number of bits of the bitmap is X 5. The Y values ​​determined by the number of the maximum allowed resources, e.g., the CSI-RS configuration includes eight ports case, the maximum value of Y 3 represents a sufficient number of various situations.
[0101]
FIG. 7 shows a simplified form, wherein X is omitted preceding bits. In the example of FIG. 7, the order in which they assumed prior agreement CSI-RS configuration, in other words, the first user equipment is known to a Y-bit configuration which corresponds to a CSI-RS, the second bit corresponds to which one of Y CSI- RS configuration, and so on. In this case, for the present cell using the CSI-RS is arranged, which is the number of available CSI-RS resource may be set to 0 (corresponding about to the Y bits are set to 0).
[0102]
Figure 8 shows another simplified form, wherein, after only one Y X-bit bit. In this example, each idle CSI-RS CSI-RS can be used by the user equipment corresponds to the configuration of the port number is the same frequency resource. Therefore, only a number of Y bits to represent the information. X bits used to represent each still CSI-RS configuration bitmap information whether there is an idle CSI-RS port can be used.
[0103]
Figure 9 shows a further simplified form in FIG. 8, which only includes a representation of each CSI-RS bitmap information whether there is arranged an idle CSI-RS port can be used. In this case, the respective predetermined number of advance CSI-RS resource configuration good user equipment to be used, i.e., the number is fixed for each CSI-RS configuration. CSI-RS for different configurations, which may be the same fixed number, or may be different. Thus, the user need only notify equipment which CSI-RS can be configured idle resources are available, and indicate that no particular number of information bits later.
[0104]
It should be understood that the foregoing is merely exemplary indication message, but it is not limited to this form. In addition, others may be provided in a simplified form, for example, only 1 bit to indicate, when the one bit is 0, no free ports are available in any configuration of a CSI-RS, when the bit is a 1, for each CSI-RS configuration types (CSI-RS can include a cell used in the present configuration, may not include CSI-RS used in the present cell configuration), can use a fixed, pre-specified number of CSI-RS resource for data transmission, the number of fixed configuration may be the same or different for each CSI-RS. Alternatively, a Y with a predetermined number of bits to represent a number of resources good CSI-RS configuration to be used (the same for all configurations).
[0105]
Further, the message generating unit 301 is further configured to generate a prohibition message for indicating to a user equipment prohibited cell free CSI-RS ports corresponding to frequency resources. In one example, the disabling message having the indication message with the same form, except that the respective bits of the bitmap is a respective CSI-RS configuration are not free resources available, and / or the amount of resources of bits representing They are set to 0. In another example, the message may be generated as a 1-bit prohibit instruction. I.e., after receiving the instruction, the user equipment is prohibited known idle CSI-RS resources. This embodiment can effectively reduce the signaling overhead.
[0106]

[0107]
FIG 10 shows a functional block diagram of the information processing apparatus 400 according to an embodiment of the present disclosure. The information processing apparatus 400, for example, may be part of a base station or a base station. Transceiving unit 401 may use, for example, an antenna or a communication interface, the determining unit 402, permitting unit 403, determination unit 404, for example, may be implemented by one or more processing circuits, for example, the processing circuit may be implemented as a chip.
[0108]
In one example, the information processing apparatus 400 includes a transceiver unit 401, determination unit 402 and the unit 403 allowed. Transceiving unit 401 may be configured from a base station of a neighboring cell comprising a cell receiving port of the information usage CSI-RS neighboring cell, wherein the cell is a neighboring cell is within the scope of the interfering cell. Further, the determination unit 402 is configured to determine a port usage CSI-RS of neighboring cells based on the received information, and usage based on the determined idle port of each CSI-RS configuration of CSI-RS ports corresponding to frequency resources, at least a part of frequency resources when data transmission permitting unit 403 is configured to allow a cell to use its idle CSI-RS configuration different from the configuration of the CSI-RS port corresponding to the CSI-RS. Determination unit 402 of the present embodiment has a similar function determining unit 102, and allows the unit 403 has similar functions to allow unit 101, in the present embodiment description is omitted in the relevant details.
[0109]
In this example, the information processing apparatus 400 may further include: a judging unit 404, configured to determine idle CSI-RS ports corresponding to a first time-frequency resource if the predetermined condition is satisfied; and under a first predetermined condition is satisfied in the case, allowing this unit cell 403 allows the use of at least a portion of the idle time-frequency resources corresponding to the CSI-RS ports for data transmission. 201 functions similar to the determination unit 404 has a determination unit, which is not repeatedly described.
[0110]
In this example, the transceiving unit 401 is further configured to use information of a CSI-RS to the base station transmits a neighbor cell to the present cell port. I.e., between base stations in neighboring cells to exchange information about usage CSI-RS port of, for example, by X2 signaling. For example, the information contained in the information unit Served ENB CONFIGURATION UPDATE message in a Cell Information. About the specific configuration information can be referred to the first embodiment, will not be repeated.
[0111]
In another example, the transceiving unit 401 may be configured to use a port receiving a cell from the central management apparatus neighboring cell information of the CSI-RS. In this example, no direct interaction between the base station of the neighboring cell information, but rather to provide centralized management and the management information by the central unit.
[0112]
In yet another example, the transceiving unit 401 may be configured to the configuration idle CSI-RS ports corresponding to other CSI-RS different configuration of frequency resources from the central management apparatus of the present cell CSI-RS, such as time-frequency amount of resources. In this example, the central management apparatus by the determination unit 402 to perform the functions, and the determination result of determination unit 402 is supplied to this cell. At this time, the information processing apparatus 400 may include a transceiver unit 401, and determination unit 403 allows the unit 404. Alternatively, the information processing apparatus 400 may include a transceiver unit 401 and allows only the unit 403.
[0113]
In another example, the transceiving unit 401 may be configured to receive the CSI-RS ports of each idle CSI-RS can be used by the cell configuration from the central management apparatus. In this example, by the central control apparatus to perform a function and a determination function unit 404 determining unit 402, and supplies the determined result to present the final cell. In this case, 400 may include a transceiver unit 401 and the information processing apparatus 403 allows the unit.
[0114]
Further, in the present embodiment, the transceiver unit 401 further frequency resource configuration indication message is idle CSI-RS ports corresponding to the user equipment sends an indication of the present cell can be used. The transceiver unit 401 also when the can send instructing the user equipment according to the present cell is prohibited idle CSI-RS ports corresponding to prohibit message-frequency resources, wherein the prohibit message may take a specific value of the indication message, or a dedicated prohibition message , as described in the third embodiment.
[0115]
The information processing apparatus according to the present embodiment can use another cell so that this idle CSI-RS resource configuration of CSI-RS for data transmission improves the efficiency of CSI-RS resource.
[0116]

[0117]
FIG 11 shows a functional block diagram of one embodiment of an electronic device 500 in accordance with the present application, the electronic device 500 comprising: a determining unit 501, configured to receive a message from a base station is determined based on the user equipment can be used for data transmission CSI-RS itself with the base station using a different configuration of a CSI-RS idle configuration when the CSI-RS ports corresponding to frequency resources; and a feedback generation unit 502, is configured to generate a message comprising the user equipment feedback.
[0118]
The electronic device 500 may be implemented, for example, respective units through one or more processing circuits, for example, the processing circuit may be implemented as a chip. The electronic device 500 may be located a user equipment side of a cell, or to a wired or wireless user device communicatively coupled.
[0119]
Message received from the base station, for example, configured as hereinbefore described comprising a respective CSI-RS, CSI-RS ports idle corresponding user device can use the frequency resource information indicating the number of messages. It should be understood that the received message is not limited to this, which contains information for the user equipment is able to perform data transmission when idle CSI-RS ports corresponding to frequency resources.
[0120]
In addition, when the received message may also be prohibited message, the number or frequency resources is determined in this case is 0 (in the broad sense of the message belongs to a prohibited), the user equipment is prohibited idle when the CSI-RS ports corresponding frequency resource for data transmission.
[0121]
Regardless of the content of the received message, what feedback generating unit 502 to generate a message comprising both the user equipment feedback. The user equipment feedback, for example, comprise one of acceptance and rejection. For example, signaling may define a bit open_close_response feedback to a user equipment, such as an acceptance, rejection represents 0, or with the opposite definitions.
[0122]
In the case where the received message-frequency resource is to allow the user equipment to use idle CSI-RS ports corresponding to data transmission, the user equipment feedback accepts agreed using the above frequency resource, the user equipment feedback rejected disagrees using the above frequency resources. In the received information is prohibited message, the user equipment feedback accepts agreed not to use the above frequency resource, the user equipment feedback disclaimer does not agree not to use frequency resources described above, for example, user equipment has used frequency resources for transmission of the above data under the circumstances, the prohibition user equipment feedback messages refusal means that the user equipment will continue to use the frequency resources of the above.
[0123]
The electronic device 500 according to the present embodiment can be implemented by a user equipment such idle time of the CSI-RS ports corresponding to frequency resources, improves the efficiency of CSI-RS resource.
[0124]

[0125]
FIG 12 shows a functional block diagram 600 of an information processing apparatus according to an embodiment of the present application according to the information processing apparatus 600 comprising: a transceiving unit 601, configured to receive a message from the base station; determining unit 602 is configured based on the the user equipment determines the received message itself can be used to perform CSI-RS data transmission with the base station using the frequency resources configuration CSI-RS ports corresponding to different idle CSI-RS configuration; and a feedback generation unit 603, configured to generating a feedback message comprising the user equipment, wherein the transceiver unit 601 is further configured to transmit the message comprising user equipment feedback to a base station.
[0126]
The information processing apparatus 600 may be, for example, a user device or user equipment part. Transceiving unit 601 may use, for example, an antenna or a communication interface, the determining unit 602 and a feedback generation unit 603 may be realized by, for example, one or more processing circuits, for example, the processing circuit may be implemented as a chip.
[0127]
In this embodiment the determination unit 602 determining unit 501 has a similar function, and the feedback generation unit 603 has a function similar to the feedback generation unit 502, so in the present embodiment described in detail thereof is omitted.
[0128]

[0129]
FIG 13 shows a functional block diagram of electronic apparatus of an embodiment of the present application 700 according to the electronic device 700 comprises: a storage unit 701, configured to store each cell a CSI-RS port usage; determining unit 702, It is configured for each cell to determine which neighboring cells use the port the CSI-RS. As described above, in the neighbor cell may be a cell within range of the interfering cell or cells adjacent to the cell in the location.
[0130]
The electronic device 700 such as a portion of the apparatus or the central processing unit can be processed as the center. The central processing unit may be implemented, for example, implemented as a server or other entity in the core network side. The storage unit 701 may be, for example, implemented using a memory, the memory comprising, for example, various volatile memory and nonvolatile memory.
[0131]
In one example, the determination unit 702 may also perform further processing, e.g., for each cell, based on which port to use is determined by configuring the idle CSI-RS ports correspond to different CSI-RS configuration of the cell itself CSI-RS time-frequency resources. Feature determining unit 702 with the same function of the determination unit 102, which will not be repeated.
[0132]
In this example, as shown in phantom in FIG. 13, the electronic device 700 may further comprise: a generation unit 703, configured to configure different idle CSI-RS configuration with the cell itself generates a CSI-RS is CSI- RS resource when the message information corresponding to the port frequency.
[0133]
Alternatively, the generating unit 703 generates an operation is based on a certain condition. Another shown in phantom in FIG. 13, the electronic device 700 may further include: a judging unit 704, configured to for each cell, it determines the cell with the determined CSI-RS configuration different from the configuration of CSI-RS generating the message in the case CSI-RS port idle condition satisfies a first predetermined condition, and a first predetermined condition is satisfied. In this case, the generation unit 703 may directly generate a corresponding idle message information CSI-RS resource containing a cell can be used.
[0134]
Further, the determination unit 704 may be further configured to: for each cell, determining the determined different configuration of CSI-RS configured idle status and a CSI-RS of the cell if the second predetermined condition is satisfied, and satisfies a second predetermined If the condition is prohibited message is generated, indicating that the message is prohibited cell is prohibited idle CSI-RS ports for data transmission. Use may be idle for a CSI-RS is determined in a cell associated with the second predetermined condition during data transmission port can not be used in idle cell CSI-RS port case where data transmission.
[0135]
Another dashed box shown in FIG. 13, the electronic device 700 may further comprise: a transceiver unit 705, a port configured to receive a corresponding cell use the CSI-RS from the base station. E.g. transceiving unit 705 may use a communication interface such as an antenna or transceiver implementation determining unit 702, generating unit 703 and the determination unit 704 may be realized by, for example, one or more processing circuits, for example, the processing circuit may be implemented as a chip.
[0136]
Wherein the transceiver unit 705 may also be configured to use when transmitting port to a corresponding neighboring cell base station cell CSI-RS or a message generation unit 703 generates a transmission. Regarding the first predetermined condition, and a second predetermined condition and content format of the message has been presented in the foregoing detailed description will not be repeated. However, it should be understood that these are not limiting, merely for ease of understanding the examples given.
[0137]
In addition, the transceiver unit 705 is further configured to send a message to the corresponding base station is prohibited cell, the message indicates that prohibits idle cell is prohibited CSI-RS ports for data transmission. The prohibiting message, for example, may be 1-bit signaling.
[0138]
As can be seen, only the electronic device 700 may collect and provide the respective port usage cell CSI-RS can be further processed for use of these ports, to obtain information CSI-RS resource idle respective cells and can be used which is supplied to the base of the cell.
[0139]
The electronic data transmission apparatus 700 of this embodiment can be assisted using idle cell CSI-RS resources, improves the efficiency of CSI-RS resource.
[0140]

[0141]
Process describes an electronic device and an information processing apparatus in the embodiment above, it is clear also disclosed some processes or methods. Hereinafter, a summary of these methods is given in some cases will not be repeated in detail already discussed above, it should be noted that although these methods are disclosed in the procedure described for the electronic device and the information processing apparatus, but these methods are not necessarily those parts are described or necessarily performed by those components. For example, embodiments of the electronic device and the information processing apparatus may be partially or fully implemented using hardware and / or firmware, and methods discussed below may be implemented entirely by a computer-executable program, although these methods may also be employed the electronic device and information processing equipment hardware and / or firmware.
[0142]
FIG 14 shows a flowchart of a method for an electronic apparatus according to one embodiment of the present disclosure, the method comprising: allowing a cell using a cell of the own channel state information reference signal CSI-RS configuration different CSI at least a part of frequency resources for data transmission (S11) when the idle -RS arranged corresponding to the CSI-RS ports.
[0143]
As shown in phantom in FIG. 14, the method may further comprise: determining a port usage of the neighbor cell of the CSI-RS cells, based on the determined idle port usage configuration of each CSI-RS CSI- when RS ports corresponding to frequency resources (S12). Further, although FIG. 14 shows a step S12 before step S11, and it is not limited thereto, the step S12 may also be located after the step S11.
[0144]
Further, before performing step S11, the may also perform Step S14: determining a first predetermined idle condition CSI-RS ports corresponding to the time-frequency resource is satisfied. If the first predetermined condition is satisfied (YES), the process proceeds to step S11. And then executes Step S17: generating a message indicative of an idle indication corresponding to CSI-RS ports can be used to the user equipment a cell-frequency resources. Received in step S18 to feedback from the user equipment, when receiving the feedback, the user equipment uses the idle CSI-RS resource for data transmission. This method determines the free CSI-RS ports corresponding frequency resource in step S20 whether or not a second predetermined condition is satisfied, if the second predetermined condition is not satisfied, the process proceeds to step S20, to periodically update the configuration of the CSI CSI-RS -RS use of ports. If a second predetermined condition is satisfied, the process proceeds to Step S16: disabling the idle a cell using the CSI-RS ports corresponding to the time-frequency resource for data transmission. Then proceeds to S19: generating a message for inhibiting indication to the user equipment a cell free prohibited CSI-RS ports corresponding to frequency resources. Furthermore, although not shown, after step S19, it may further comprise the step of receiving user equipment feedback.
[0145]
On the other hand, when it is determined in step S14 does not satisfy a first predetermined condition, may also be Step S15: determine whether the second predetermined condition is idle CSI-RS ports corresponding to the frequency resource is satisfied. If a second predetermined condition is satisfied, the process proceeds to step S16 and S19. If the second predetermined condition is not satisfied, the process may proceed to Step S13: periodically updating the use of CSI-RS configuration of CSI-RS ports, the same processing as the processing of step S13 step S20. Here, if the present cell unused idle CSI-RS resource for data transmission may be determined in step S15 is skipped, directly back to step S13.
[0146]
It should be understood that, although FIG. 14 shows an example of a flowchart of the method, the steps of the method of the present disclosure is not limited thereto, the present disclosure may include a method in which only part of the processing steps, the processing order of the steps or is not limited to the order illustrated. For example, the order of steps S14 and S15 may be reversed.
[0147]
As one example, a first predetermined condition in step S14 is at least a portion configured CSI-RS, an idle port corresponding CSI-RS can be used by a cell of the frequency resource amount exceeds the sum of a first predetermined threshold value. The number of second predetermined condition in step S15 is at least a portion configured CSI-RS, an idle port corresponding CSI-RS can be used by the time-frequency resources and a cell is below a second predetermined threshold value.
[0148]
For example, at least a portion of the CSI-RS configuration including the number of its idle port CSI-RS exceeds a predetermined value of CSI-RS configuration, called an idle CSI-RS configuration. Number of time-frequency resources of example, each free CSI-RS configuration corresponding to the idle CSI-RS ports that can be used by the one cell is less than or equal to the predetermined value is a fixed value. In this case, the number of the sum as the product of the number of idle fixed value of CSI-RS configuration.
[0149]
For a number of two or more neighboring cells using a CSI-RS configuration, having a minimum of free neighboring cell CSI-RS ports idle time-frequency resources corresponding to the CSI-RS ports configured as a CSI-RS number of idle resources of the CSI-RS port CSI-RS configuration corresponding to frequency.
[0150]
Further, in step S17 the indication message includes generating a respective number of the CSI-RS configuration, idle CSI-RS ports corresponding to the user equipment can use the frequency resource information. When the number of idle CSI-RS ports corresponding to e.g., respective CSI-RS can be used by the user equipment may be configured to set to the same frequency resources.
[0151]
In one example, the indication message includes a respective CSI-RS bitmap information whether there is arranged an idle CSI-RS port can be used. The number of bits corresponding to respective bitmap is 0 or 0, indicates that the corresponding CSI-RS configuration idle CSI-RS is unavailable.
[0152]
In step S19, the disabling message may be generated indication message having a particular value, the 1-bit instructions may also.
[0153]
In one example, in step S13 and S20 to obtain the CSI-RS can use the neighboring cell according to the port X2 signaling from the base station of the neighboring cell. X2 signaling ENB CONFIGURATION UPDATE message, for example, the ENB CONFIGURATION UPDATE indication information included in each cell information CSI-RS usage configuration of CSI-RS cells in the neighbor port. This information element having the form of a bitmap, for example, the number depending on the number of bits of the bitmap CSI-RS ports CSI-RS configuration is determined, for example, a bitmap indicates that the corresponding bit is 0 CSI-RS ports is not used, the bitmap 1 indicates that the corresponding bit is a CSI-RS ports is being used. This information element may include information unit Served Cell Information in ENB CONFIGURATION UPDATE message.
[0154]
Further, in steps S13 and S20, may be updated by use of CSI-RS ports receive information from the central management apparatus.
[0155]
Accordingly, although not shown in FIG. 14, but the method may further comprise the step of receiving information comprises port usage of a CSI-RS. Further, the method may further comprise the step of transmitting an indication message to the user equipment or prohibit message.
[0156]
FIG 15 shows a flowchart of a method for an electronic apparatus according to another embodiment of the present application, the method comprising: based on a message received from the base station apparatus determines that the user can be used to perform data transmission using the base station when the CSI-RS ports corresponding to idle their CSI-RS configuration different CSI-RS configuration of frequency resources (S21); and generating a message comprises (S22) a user equipment feedback. For example, the user feedback device comprises one of acceptance and rejection.
[0157]
When the CSI-RS ports corresponding to when the number of messages received from the base-frequency resources is determined prohibition message or is 0, the user equipment is prohibited idle frequency resource for data transmission.
[0158]
As shown in the dashed box in FIG. 15, the method may further comprise: step S23, the received message from a base station; and a step S24, the base station transmits a message to the user equipment feedback.
[0159]
FIG 16 shows a flowchart of a method for an electronic apparatus of a further embodiment of the present disclosure, the method comprising: storing each cell port usage a CSI-RS (S31); and for each cell, determining cell adjacent the CSI-RS port usage (S32).
[0160]
Further, as shown in the dashed box in FIG., The method may further include Step S33: receiving port usage corresponding cell CSI-RS from the base station.

Claims

[Claim 1]An electronic device, comprising: a processing circuit, the processing circuit is configured to: allow the use of a cell with a cell of the own channel state information reference signal CSI-RS configuration CSI-RS ports of different CSI-RS configuration idle at least a portion of the corresponding time-frequency resources for data transmission.
[Claim 2]
The electronic apparatus according to claim 1, wherein the processing circuit is further configured to: determine a port of the usage of the neighbor cell of the CSI-RS cells, based on the respective port is determined by using CSI-RS CSI-RS configuration idle port corresponding to frequency resources.
[Claim 3]
The electronic apparatus according to claim 2, wherein the processing circuit is further configured to: determine whether the first predetermined idle condition corresponding to the CSI-RS ports satisfies frequency resources; and the first predetermined condition is satisfied frequency resources at least a portion of the data transmission is permitted in the case of a cell using the spare port corresponding to the CSI-RS.
[Claim 4]
The electronic apparatus according to claim 2, wherein the processing circuit is further configured to: determine whether the second predetermined idle condition CSI-RS ports corresponding to frequency resources are satisfied, and the second predetermined condition is satisfied in the case of prohibiting the cell using a frequency resource of the idle port corresponding to the CSI-RS for data transmission.
[Claim 5]
The electronic apparatus according to claim 3, wherein the processing circuit is further configured to: use the idle time-frequency resources CSI-RS ports is performed during data transmission, a determination of the cell in the idle CSI- RS ports when the case if frequency resource corresponding to a second predetermined condition is satisfied, and the second predetermined condition is satisfied, and prohibiting the use of a cell of the CSI-RS ports idle time-frequency resources corresponding to the data transmission.
[Claim 6]
The electronic apparatus according to claim 3, wherein the number of said first predetermined condition configured for at least a portion CSI-RS, an idle port corresponding CSI-RS can be used by a cell of the frequency resources and over a first predetermined threshold value.
[Claim 7]
The electronic apparatus according to claim 4, wherein when the second predetermined condition is at least a portion configured CSI-RS, can be used by a cell of the CSI-RS ports idle frequency corresponding to the magnitude of resources and low to a second predetermined threshold.
[Claim 8]
The electronic device according to claim 6 or claim 7, wherein at least a portion of the CSI-RS configuration including the number of its idle port CSI-RS exceeds a predetermined value of CSI-RS configuration, called an idle CSI-RS configuration.
[Claim 9]
The electronic apparatus according to claim 8, wherein each of said number of idle CSI-RS can be configured by the time-frequency resources corresponding to the port of the idle cell using a CSI-RS is less than or equal to the predetermined value Fixed value.
[Claim 10]
The electronic device according to claim 9, wherein the number of the sum of the product of the number of idle fixed value of CSI-RS configuration.
[Claim 11]
The electronic apparatus according to claim 2, wherein, for two or more neighboring cells using the CSI-RS configuration, having a minimum idle idle neighboring cells CSI-RS ports configured CSI CSI-RS number of idle resources CSI-RS ports corresponding to the port number corresponding to the time-frequency resources -RS as the frequency of the CSI-RS configuration.
[Claim 12]
The electronic device according to any one of claim 1 to 7, wherein the processing circuit is further configured to use the idle time-frequency resources of a cell in the CSI-RS ports during data transmission, periodically updating the use of CSI-RS ports of the CSI-RS configuration.
[Claim 13]
The electronic apparatus according to claim 1, wherein the processing circuit is further configured to: generate an indication message indicates an idle time corresponding to CSI-RS port can be used to the user equipment a cell-frequency resources.
[Claim 14]
The electronic apparatus according to claim 13, wherein said indication comprises a message number of each CSI-RS configuration, the idle CSI-RS ports corresponding to the user equipment can use the frequency resource information.
[Claim 15]
The electronic apparatus according to claim 14, wherein the processing circuit is further configured to the number of idle CSI-RS ports corresponding to respective CSI-RS can be used by the user equipment is arranged set to the same frequency resource.
[Claim 16]
The electronic apparatus according to claim 15, wherein the indication message includes a respective CSI-RS bitmap information whether there is arranged an idle CSI-RS port can be used.
[Claim 17]
The electronic device according to claim 4 or claim 5, wherein, when the processing circuit is further configured to generate an indication to the user equipment a cell to prohibit the use of the idle CSI-RS ports corresponding to the prohibited frequency resources messages.
[Claim 18]
An information processing apparatus, comprising: an antenna configured to neighboring cells from a base station of a cell comprising receiving information about the usage of the ports of neighboring cells the CSI-RS; and a processing circuit configured to: based on the the information received by the antenna port usage determines the CSI-RS of neighboring cells, and to determine the idle time-frequency resources corresponding to the CSI-RS ports of each CSI-RS configuration based on the use of the port; and allowing the a at least a portion of the frequency resources for data transmission when the CSI-RS ports corresponding to a cell using the cell's own idle CSI-RS configuration different from the configuration of the CSI-RS.
[Claim 19]
The information processing apparatus according to claim 18, wherein the antenna is further configured to transmit the base station of the neighboring cell information comprises a cell of the usage of the CSI-RS port.
[Claim 20]
When the resource indication message. The information processing apparatus according to claim 18, wherein the antenna is further configured to idle CSI-RS ports corresponding to the user equipment sends an indication to a cell of a frequency that can be used.
[Claim 21]
The information processing apparatus according to claim 18, wherein the antenna is further configured to transmit to the user equipment a cell indicates prohibition of the use prohibition message when an idle CSI-RS ports corresponding to frequency resources.
[Claim 22]
An electronic device, comprising: a processing circuit configured to: based on the message received from the base can be used to determine the user equipment itself with the base station CSI-RS data transmission using the idle configuration different configuration of CSI-RS CSI-RS ports when the corresponding time frequency resources; and generating a message comprising the user equipment feedback.
[Claim 23]
The electronic apparatus according to claim 22, wherein the user feedback device comprises one of acceptance and rejection.
[Claim 24]
0 The number of the electronic apparatus according to claim 22, wherein, when a message is received from the base or the disabling message to the determined frequency resources, the user equipment is prohibited in the idle port corresponding to the CSI-RS the time-frequency resource for data transmission.
[Claim 25]
An information processing apparatus, comprising: an antenna configured to receive a message from the base station; a processing circuit configured to: based on the message received by the antenna can be used to determine a user device with the base station using the data transmission CSI-RS configuration itself idle different CSI-RS configuration of CSI-RS ports when the corresponding time frequency resources; and a message generating apparatus comprising a user feedback, wherein the antenna is further configured to transmit to the base station comprises the user equipment feedback messages.
[Claim 26]
An electronic device, comprising: a memory configured to store each cell a CSI-RS port usage; a processing circuit configured for each cell to determine which neighboring cells use the port the CSI-RS.
[Claim 27]
The electronic apparatus according to claim 26, wherein the processing circuit is further configured to determine based on the use of its ports for each cell and the cell itself CSI-RS configuration different CSI-RS configured idle CSI when -RS port corresponding frequency resources.
[Claim 28]
The electronic device according to claim 26, wherein the processing circuit is further configured to time-frequency resources corresponding to the port configuration of CSI-RS CSI-RS idle different configurations of the cell itself to generate a CSI-RS contained message information.
[Claim 29]
The electronic apparatus according to claim 28, wherein the processing circuit is further configured to: for each cell, determining the determined CSI-RS is different CSI-RS configuration with the cell CSI-RS ports generating a message when the first predetermined condition is satisfied idle condition, and the first predetermined condition is satisfied.
[Claim 30]
The electronic device of claim 28 or claim 29, wherein the processing circuit is further configured to: for each cell, determining the determined different configuration of CSI-RS configured idle status of the cell whether or not CSI-RS satisfies a second predetermined condition is satisfied and if the second predetermined condition prohibiting generation message, the message indicating the prohibited cell is prohibited to use the free CSI-RS ports for data transmission.
[Claim 31]
The electronic apparatus according to claim 28, further comprising: a transceiver, configured to use the reception port corresponding cell from the base station a CSI-RS.
[Claim 32]
The information processing apparatus according to claim 31, wherein the transceiver is further configured to transmit the message to the cell of the corresponding base station, or a processing circuit for generating neighbor cell port use the CSI-RS .
[Claim 33]
The information processing apparatus according to claim 31, wherein the transceiver is further configured to transmit a message to the corresponding base station is prohibited cell, the cell is prohibited idle CSI-RS ports of the message indicating the prohibition for data transmission.
[Claim 34]
A method for an electronic device, comprising: when the CSI-RS ports corresponding to a cell allows the use of a cell with its own channel state information reference signal CSI-RS configuration idle different CSI-RS configuration of frequency resources at least a portion of the data transmission.
[Claim 35]
A method for an electronic device, comprising: a base station based on the received message from the user equipment can be used to determine the data transmission itself CSI-RS to the base station using a different configuration of a CSI-RS is configured idle CSI-RS frequency resources corresponding to the port; and a message generating apparatus comprising a user feedback.
[Claim 36]
A method for an electronic device, comprising: memory cells each of the CSI-RS port usage; for each cell, determining which neighboring cells use the port a CSI-RS.