CN105025519A - Interference signal measurement method and related equipment - Google Patents
Interference signal measurement method and related equipment Download PDFInfo
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- CN105025519A CN105025519A CN201410182435.2A CN201410182435A CN105025519A CN 105025519 A CN105025519 A CN 105025519A CN 201410182435 A CN201410182435 A CN 201410182435A CN 105025519 A CN105025519 A CN 105025519A
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Abstract
The invention discloses an interference signal measurement method and related equipment, used for increasing interference signal measurement accuracy in downlink channel measurement. The method comprises: receiving interference signal parameters transmitted by a first base station; and according to the interference signal parameters, measuring interference signals based on the downlink measurement pilot frequency transmitted by the downlink channel or resources capable of measuring interference.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of interference signal method of measurement and relevant device.
Background technology
In Long Term Evolution (Long Term Evolution, LTE) system, terminal is measured down channel based on downlink measurement pilot frequency, to obtain channel condition information.Terminal, when carrying out down channel and measuring, needs to measure useful signal and interference signal.
In transmission mode 1 ~ transmission mode 9, terminal is at the upper measurements interference signal of public reference signal (Cell-specific referencesignal, CRS); In transmission mode 10, terminal is at the upper measurements interference signal of interferometry resource (CSIInterference Measurement Resource, CSI-IMR).After terminal measures acquisition channel condition information by down channel, to this channel condition information of base station feedback.
Wherein, transmission mode 10 is a kind of transmission modes newly increased in LTE-A, mainly in order to support multi-cell cooperative communication, to improve Cell Edge User.For transmission mode 10, terminal configuration has more than one channel state information reference signals (channel state information reference signal, and more than one CSI-IMR CSI-RS), channel condition information (CSI) process context CSI-RS and CSI-IMR, terminal measures useful signal on CSI-RS, measurements interference signal on corresponding CSI-IMR.
In prior art, interference signal in measuring for down channel is measured, only define the signal resource of measurements interference signal, such as, interference signal is measured and is carried out on CRS or CSI-RS or CSI-IMR carries out, but terminal is only lower according to the accuracy of signal resource measurements interference signal, the accuracy of the channel condition information of terminal feedback is also difficult to ensure, is also difficult to effectively eliminate interference based on the interference signal measured.
Summary of the invention
The invention provides a kind of interference signal method of measurement and relevant device, in order to improve the accuracy measured interference signal when down channel is measured.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
A kind of interference signal method of measurement, comprising:
Receive the interference signal parameters that the first base station sends;
According to described interference signal parameters based on the downlink measurement pilot frequency of downlink channel transmission or can measurements interference signal in the resource of measurements interference.
Notify a method for interference signal parameters, comprising:
Obtain interference signal parameters;
Send described interference signal parameters to terminal, by described terminal according to described interference signal parameters based on the downlink measurement pilot frequency of downlink channel transmission or can measurements interference signal in the resource of measurements interference.
A kind of terminal, comprising:
Receiver module, for receiving the interference signal parameters that the first base station sends;
Processing module, for according to described interference signal parameters based on the downlink measurement pilot frequency of downlink channel transmission or can measurements interference signal in the resource of measurements interference.
A kind of base station, comprising:
Acquisition module, for obtaining interference signal parameters;
Sending module, for sending described interference signal parameters to terminal, by described terminal according to described interference signal parameters based on the downlink measurement pilot frequency of downlink channel transmission or can measurements interference signal in the resource of measurements interference.
Based on technique scheme, in the embodiment of the present invention, by base station to terminal notification interference signal parameters, terminal is based on the downlink measurement pilot frequency of downlink channel transmission or according to interference signal parameters measurements interference signal in the resource of measurements interference, can improve the accuracy that interference signal is measured.
Accompanying drawing explanation
Fig. 1 is the method flow schematic diagram that in the embodiment of the present invention, interference signal is measured;
Fig. 2 a is CRS Resource Block schematic diagram;
Fig. 2 b is CSI-IMR Resource Block schematic diagram;
Fig. 3 is the method flow schematic diagram of notice interference signal parameters in base station in the embodiment of the present invention;
Fig. 4 is interference signal and useful signal schematic diagram in the embodiment of the present invention;
Fig. 5 is terminal structure schematic diagram in the embodiment of the present invention;
Fig. 6 is architecture of base station schematic diagram in the embodiment of the present invention.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, and obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
In following examples, the first base station is defined as the base station into Terminal for service, and the second base station is defined as the base station of the terminal in the first base station coverage community being caused to interference.
In first embodiment of the invention, as shown in Figure 1, to carry out the method detailed flow process of interference signal measurement as follows for terminal:
Step 101: terminal receives the interference signal parameters that the first base station sends.
In practical application, the first base station is by high-level signaling notification terminal interference signal parameters, and this high-level signaling only needs to carry interference signal parameters.
Preferably, terminal receives wireless heterogeneous networks (Radio Resource Control, the RRC) signaling of the first base station, obtains the interference signal parameters of carrying in RRC signaling.
Preferably, interference signal parameters is obtained from causing the second base station of interference to the community of this first base station coverage by the first base station.
Particularly, for transmission mode 10, first base station associates a CSI-RS and CSI-IMR by RRC signal deployment, also one or more interference signal parameters is configured configure CSI-IMR in this RRC signaling while, this RRC is sent to terminal, by terminal according to this RRC signal deployment CSI process and acquisition interference signal parameters.
Step 102: according to interference signal parameters based on the downlink measurement pilot frequency of downlink channel transmission or can measurements interference signal in the resource of measurements interference.
Particularly, for transmission mode 10, can measurements interference signal in the resource of measurements interference, this can the resource of measurements interference can be at least CSI-IMR.
Preferably, interference signal parameters is the parameter that can impact the feature of interference signal.
Particularly, interference signal parameters comprises the transmission mode of interference signal, order of modulation, code check, precoding vector (PMI), order (RI), transmitted power, multicast broadcast single frequency network MBSFN sub-frame pattern, community dedicated reference symbols port number, cell ID, for the demodulated reference signal DMRS of scrambling interfered cell, QCL (accurate colocation site) information, Resourse Distribute granularity, resource allocation type, centralized or distributed virtual resource block VRB, control signal format indicator signal, system bandwidth, synchronous instruction, be used to indicate the indication information whether interference signal exists, any one or more than one combination in the length of Cyclic Prefix (CP) and power ratio information.
It will be understood by those skilled in the art that to be only herein and enumerate, all parameters that can impact the feature of interference signal are all within the protection range of the embodiment of the present invention, and the present invention is not as limit.
Wherein, be synchronously designated as and be used to indicate whether synchronous with the Target cell information in interfered cell.
Preferably, interference signal parameters is obtained from causing the second base station of interference to the community of the first base station coverage by the first base station.
Preferably, first base station obtains interference signal parameters by X2 interface from the second base station, namely undertaken alternately by semi-static signaling between base station, identical with the interference signal parameters that disturbed UE receives to ensure the interference signal parameters that the second base station sends, ensure the accuracy that interference signal is measured.
Wherein, for different transmission modes, based on CRS or CSI-IMR measurements interference signal.Particularly, for the transmission mode 1 ~ transmission mode 9 in LTE, based on CRS measurements interference signal; For transmission mode 10, based on CSI-IMR measurements interference signal, Fig. 2 a is depicted as the Resource Block schematic diagram that CRS takies, and Fig. 2 b is depicted as the Resource Block schematic diagram that CSI-IMR takies.
Preferably, if there is not the terminal that needs second base station sends data in the region administered, the second base station, then this second base station sends and adopts same interference signal parameters to carry out the random data processed, thus ensures the accuracy that interference signal is measured further.
Particularly, for transmission mode 1 ~ transmission mode 9, if there is not the terminal that needs second base station sends data in the region administered, the second base station, then this second base station sends based on PDSCH and adopts same interference signal parameters to carry out the random data processed.
Particularly, for transmission mode 10, if there is not the terminal that needs second base station sends data in the region administered, the second base station, then this second base station sends based on PDSCH or CSI-IMR and adopts same interference signal parameters to carry out the random data processed.
Wherein, transmission mode 1 is single antenna port transmission, is mainly used in the occasion of single antenna transmissions; Transmission mode 2 is transmitting diversity pattern, and be suitable for cell edge channel situation more complicated, disturb larger situation, sometimes also for the situation of high-speed transfer, diversity can provide diversity gain; Transmission mode 3 is large delay diversity pattern, is applicable to the situation of terminal high-speed movement; Transmission mode 4 is Closed-Loop Spatial Multiplexing pattern, is suitable for the good occasion of channel condition, for providing high data rate transmission; Transmission mode 5 is multi-user's multiple-input and multiple-output (Multi User MIMO, MU-MIMO) transmission mode, is mainly used to the capacity improving community; Transmission mode 6 is the transmission mode of 1 (Rank=1) for order, is mainly suitable for the situation of cell edge; Transmission mode 7 is single current wave beam forming (Beamforming) pattern of port (Port) 5, is mainly used in cell edge, can effectively to anti-interference; Transmission mode 8 is dual-stream beamforming (Beamforming) pattern, may be used for cell edge and also can be applied to other scenes; Transmission mode 9 is a kind of pattern newly increased in Long Term Evolution (LTE-A) system of advanced person, can support the transmission being up to 8 layers, mainly for promoting message transmission rate.
Preferably, after terminal is measured acquisition interference signal and is measured acquisition useful signal, according to this interference signal and useful signal determination channel condition information, and channel condition information is sent to the first base station, while sending downlink data by the first base station according to channel condition information, sent based on the data after interference signal parameters process by the second base station.Thus the interference signal parameters that adopts when making to obtain channel condition information, consistent with the interference signal parameters that interference signal during downlink data transmission adopts, to improve channel transmission quality.
Wherein, when the first base station sends downlink data, sent based on the data after interference signal parameters process by the second base station, this interference signal parameters and the first base station send to the interference signal parameters of terminal identical.
Wherein, channel condition information comprises any one or the combination in order, precoding vector (PMI) and channel quality instruction (CQI).
Based on same inventive concept, in second embodiment of the invention, as shown in Figure 3, the method detailed flow process of the first base station notice interference signal parameters is as follows:
Step 301: the first base station obtains interference signal parameters.
Preferably, the first base station obtains interference signal parameters from causing the second base station of interference to the community of this base station coverage.
Preferably, the first base station obtains interference signal parameters by X2 interface from the second base station.
Preferably, interference signal parameters is the parameter that can impact the feature of interference signal, and the interference signal parameters specifically enumerated is identical with the description in the first embodiment, repeats no more herein.
Step 302: the first base station sends interference signal parameters to terminal, by terminal according to interference signal parameters based on the downlink measurement pilot frequency of downlink channel transmission or can measurements interference signal in the resource of measurements interference.
In practical application, the first base station is by high-level signaling notification terminal interference signal parameters, and this high-level signaling only needs to carry interference signal parameters.
Preferably, interference signal parameters is carried in the first base station in RRC signaling, sends this RRC signaling to terminal.
Wherein, for different transmission modes, can based on CRS or CSI-IMR measurements interference signal.Particularly, for the transmission mode 1 ~ transmission mode 9 in LTE, based on CRS measurements interference signal; For transmission mode 10, based on CSI-IMR measurements interference signal.
Wherein, interference signal be second base station send based on the signal after same interference signal parameters process.
Preferably, if there is not the terminal that needs second base station sends data in the region administered, the second base station, then this second base station sends and adopts interference signal parameters to carry out the random data processed, thus ensures the accuracy that interference signal is measured further.
Particularly, for transmission mode 1 ~ transmission mode 9, if there is not the terminal that needs second base station sends data in the region administered, the second base station, then this second base station sends based on PDSCH and adopts same interference signal parameters to carry out the random data processed.
Particularly, for transmission mode 10, if there is not the terminal that needs second base station sends data in the region administered, the second base station, then this second base station sends based on PDSCH or CSI-IMR and adopts same interference signal parameters to carry out the random data processed.
Preferably, the channel condition information that the first base station receiving terminal returns, this channel condition information is determined by the useful signal of terminal according to the interference signal measured and measurement; And send downlink data according to channel condition information to terminal, send the signal after adopting interference signal parameters process by the second base station simultaneously.
Preferably, when the first base station sends downlink data, the second base station sends the signal adopting interference signal parameters process, and this interference signal parameters and base station send to the interference signal parameters of terminal identical.Thus the interference signal parameters that adopts when making to obtain channel condition information, consistent with the interference signal parameters that interference signal during downlink data transmission adopts, channel transmission quality can be improved further.
Wherein, channel condition information comprises any one or the combination in order, PMI and CQI.
Below by way of a specific embodiment, the process that interference signal is measured is described in detail.
In this specific embodiment, be described for transmission mode 10, whole communication process can be divided into two stages: the data transfer phase of interference signal measuring phases and physically based deformation DSCH Downlink Shared Channel (PDSCH).
As shown in Figure 4, the UE1 in community (Cell) 1 is object UE, and the base station of community 2 is interference source.
The detailed process of carrying out interference signal measurement is as follows:
UE1 receives the signaling that the base station in community 1 sends, and obtains the order of modulation QPSK of the interference signal of carrying in this signaling, carries out interference signal measurement according to this order of modulation.Base station in community 2 sends the data adopting QPSK modulation to the UE2 in community 2 in the UE1 measurements interference signal moment.When not having UE to need base station to send data in community 2, the random data modulated is carried out in the base station transmission in community 2 by QPSK.The order of modulation adopted due to the UE1 measurements interference signal moment is identical with the order of modulation that the interference signal that 2 pairs, community UE1 produces adopts, the accuracy that interference signal is measured can be improved, and then promote the feedback quality of the channel condition information determined based on the interference signal measured.
The detailed process of carrying out transfer of data is as follows:
When base station in community 1 sends downlink data based on PDSCH to UE1, adopt the channel condition information of UE1 feedback, the UE of base station simultaneously in community 2 under affiliated subdistrict sends and adopts QPSK to carry out the data of modulating, and makes UE1 feed back the order of modulation of interference signal when the order of modulation of moment interference signal and UE1 really receive downstream signal identical.
The method of this specific embodiment may be used for other parameters of interference signal, as code check, order, precoding vector, transmitted power etc.
In this specific embodiment, when sending downstream signal with base station when interference signal is measured, interference signal parameters is identical can improve channel quality.In this specific embodiment, UE1 in community 1 is when carrying out interference signal and measuring, and suppose that the interference signal on CSI-IMR meets certain particular community, this particular community is by network configuration, as by RRC signaling, this specific properties is characterized by the interference signal parameters informing UE1.
Based on same inventive concept, provide a kind of terminal in third embodiment of the invention, the concrete enforcement of this terminal can see the description of end side in first, second embodiment, and repeat part and repeat no more, as shown in Figure 5, this terminal mainly comprises:
Receiver module 501, for receiving the interference signal parameters that the first base station sends;
Processing module 502, for according to interference signal parameters based on the downlink measurement pilot frequency of downlink channel transmission or can measurements interference signal in the resource of measurements interference.
Preferably, receiver module 501 specifically for:
Receive the RRC signaling of the first base station, obtain the interference signal parameters of carrying in described RRC signaling.
Preferably, interference signal parameters is obtained from causing the second base station of interference to the community of this base station coverage by the first base station.
Preferably, described interference signal be described second base station send based on the signal after described interference signal parameters process.
Preferably, processing module 502 also for:
According to the useful signal determination channel condition information of interference signal and measurement, and described channel condition information is sent to the first base station, while sending downlink data by this first base station according to channel condition information, sent based on the signal after interference signal parameters process by the second base station.
Preferably, interference signal parameters is the parameter that can impact the feature of interference signal, and the interference signal parameters of concrete list is identical with the description in the first embodiment, repeats no more herein.
Based on same inventive concept, provide a kind of base station in fourth embodiment of the invention, the concrete enforcement of this base station can see the description of the first base station side in first, second embodiment above-mentioned, and repeat part and repeat no more, as shown in Figure 6, this base station mainly comprises:
Acquisition module 601, for obtaining interference signal parameters;
Sending module 602, for sending interference signal parameters to terminal, by terminal according to this interference signal parameters based on the downlink measurement pilot frequency of downlink channel transmission or can measurements interference signal in the resource of measurements interference.
Preferably, sending module 602 specifically for:
In RRC signaling, carry interference signal parameters, send this RRC signaling to terminal.
Preferably, acquisition module 601 specifically for:
Interference signal parameters is obtained from causing the second base station of interference to the community of this base station coverage.
Preferably, acquisition module 601 specifically for:
Interference signal parameters is obtained from the second base station by X2 interface.
Preferably, also comprise receiver module 603, for:
The channel condition information that receiving terminal returns, this channel condition information is determined by the useful signal of terminal according to the interference signal measured and measurement;
Correspondingly, sending module 602 also for:
While sending downlink data according to channel condition information to terminal, sent based on the signal after interference signal parameters process by the second base station.
Preferably, interference signal parameters is the parameter that can impact the feature of interference signal, and the interference signal parameters of concrete list is identical with the description in the first embodiment, repeats no more herein.
Based on technique scheme, in the embodiment of the present invention, by base station to terminal notification interference signal parameters, terminal based on the downlink measurement pilot frequency of downlink channel transmission according to interference signal parameters measurements interference signal, improve interference signal measure accuracy.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (24)
1. an interference signal method of measurement, is characterized in that, comprising:
Receive the interference signal parameters that the first base station sends;
According to described interference signal parameters based on the downlink measurement pilot frequency of downlink channel transmission or can measurements interference signal in the resource of measurements interference.
2. the method for claim 1, is characterized in that, receives the interference signal parameters that the first base station sends, comprising:
Receive the radio resource control RRC signaling of described first base station, obtain the interference signal parameters of carrying in described RRC signaling.
3. the method for claim 1, is characterized in that, described interference signal parameters causes the second base station of interference to obtain by described first base station to the community of described first base station coverage.
4. method as claimed in claim 3, is characterized in that, described interference signal be described second base station send based on the signal after described interference signal parameters process.
5. method as claimed in claim 4, it is characterized in that, described method also comprises:
According to the useful signal determination channel condition information of described interference signal and measurement, and described channel condition information is sent to described first base station, send downlink data by described first base station according to described channel condition information, and sent based on the signal after described interference signal parameters process by described second base station.
6. the method as described in any one of claim 1-5, is characterized in that, described interference signal parameters comprises:
The transmission mode of interference signal, order of modulation, code check, precoding vector, order, transmitted power, multicast broadcast single frequency network MBSFN sub-frame pattern, community dedicated reference symbols port number, cell ID, for the demodulated reference signal DMRS of scrambling interfered cell, accurate colocation site QCL information, Resourse Distribute granularity, resource allocation type, centralized or distributed virtual resource block VRB, control signal format indicator signal, system bandwidth, synchronous instruction, be used to indicate the indication information whether interference signal exists, any one or more than one combination in the length of cyclic prefix CP and power ratio information.
7. notify a method for interference signal parameters, it is characterized in that, comprising:
Obtain interference signal parameters;
Send described interference signal parameters to terminal, by described terminal according to described interference signal parameters based on the downlink measurement pilot frequency of downlink channel transmission or can measurements interference signal in the resource of measurements interference.
8. method as claimed in claim 7, is characterized in that, send described interference signal parameters, comprising to terminal:
In radio resource control RRC signaling, carry described interference signal parameters, send described RRC signaling to described terminal.
9. method as claimed in claim 8, is characterized in that, obtains interference signal parameters, comprising:
Described interference signal parameters is obtained from causing the second base station of interference to the community of the first base station coverage.
10. method as claimed in claim 9, is characterized in that, from causing the community of the first base station coverage the second base station of interference to obtain described interference signal parameters, comprising:
Described interference signal parameters is obtained from described second base station by X2 interface.
11. methods as claimed in claim 9, it is characterized in that, described method also comprises:
Receive the channel condition information that described terminal returns, described channel condition information is determined by the useful signal of described terminal according to the described interference signal measured and measurement;
Send downlink data according to described channel condition information to described terminal, and sent based on the signal after described interference signal parameters process by described second base station.
12. methods as described in any one of claim 7-11, it is characterized in that, described interference signal parameters comprises:
The transmission mode of interference signal, order of modulation, code check, precoding vector, order, transmitted power, multicast broadcast single frequency network MBSFN sub-frame pattern, community dedicated reference symbols port number, cell ID, for the demodulated reference signal DMRS of scrambling interfered cell, accurate colocation site QCL information, Resourse Distribute granularity, resource allocation type, centralized or distributed virtual resource block VRB, control signal format indicator signal, system bandwidth, synchronous instruction, be used to indicate the indication information whether interference signal exists, any one or more than one combination in the length of cyclic prefix CP and power ratio information.
13. 1 kinds of terminals, is characterized in that, comprising:
Receiver module, for receiving the interference signal parameters that the first base station sends;
Processing module, for according to described interference signal parameters based on the downlink measurement pilot frequency of downlink channel transmission or can measurements interference signal in the resource of measurements interference.
14. terminals as claimed in claim 13, is characterized in that, described receiver module specifically for:
Receive the radio resource control RRC signaling of described first base station, obtain the interference signal parameters of carrying in described RRC signaling.
15. terminals as claimed in claim 13, is characterized in that, described interference signal parameters causes the second base station of interference to obtain by described first base station to the community of described first base station coverage.
16. terminals as claimed in claim 15, is characterized in that, described interference signal be described second base station send based on the signal after described interference signal parameters process.
17. terminals as claimed in claim 16, is characterized in that, described processing module also for:
According to the useful signal determination channel condition information of described interference signal and measurement, and described channel condition information is sent to described first base station, send downlink data by described first base station according to described channel condition information, and sent based on the signal after described interference signal parameters process by described second base station.
18. terminals as described in any one of claim 13-17, it is characterized in that, described interference signal parameters comprises:
The transmission mode of interference signal, order of modulation, code check, precoding vector, order, transmitted power, multicast broadcast single frequency network MBSFN sub-frame pattern, community dedicated reference symbols port number, cell ID, for the demodulated reference signal DMRS of scrambling interfered cell, accurate colocation site QCL information, Resourse Distribute granularity, resource allocation type, centralized or distributed virtual resource block VRB, control signal format indicator signal, system bandwidth, synchronous instruction, be used to indicate the indication information whether interference signal exists, any one or more than one combination in the length of cyclic prefix CP and power ratio information.
19. 1 kinds of base stations, is characterized in that, comprising:
Acquisition module, for obtaining interference signal parameters;
Sending module, for sending described interference signal parameters to terminal, by described terminal according to described interference signal parameters based on the downlink measurement pilot frequency of downlink channel transmission or can measurements interference signal in the resource of measurements interference.
20. base stations as claimed in claim 19, is characterized in that, described sending module specifically for:
In radio resource control RRC signaling, carry described interference signal parameters, send described RRC signaling to described terminal.
21. base stations as claimed in claim 20, is characterized in that, described acquisition module specifically for:
Described interference signal parameters is obtained from causing the second base station of interference to the community of described base station coverage.
22. base stations as claimed in claim 21, is characterized in that, described acquisition module specifically for:
Described interference signal parameters is obtained from described second base station by X2 interface.
23. base stations as claimed in claim 21, is characterized in that, also comprise receiver module, for:
Receive the channel condition information that described terminal returns, described channel condition information is determined by the useful signal of described terminal according to the described interference signal measured and measurement;
Described sending module also for:
Send downlink data according to described channel condition information to described terminal, and sent based on the signal after described interference signal parameters process by described second base station.
24. base stations as described in any one of claim 19-23, it is characterized in that, described interference signal parameters comprises:
The transmission mode of interference signal, order of modulation, code check, precoding vector, order, transmitted power, multicast broadcast single frequency network MBSFN sub-frame pattern, community dedicated reference symbols port number, cell ID, for the demodulated reference signal DMRS of scrambling interfered cell, accurate colocation site QCL information, Resourse Distribute granularity, resource allocation type, centralized or distributed virtual resource block VRB, control signal format indicator signal, system bandwidth, synchronous instruction, be used to indicate the indication information whether interference signal exists, any one or more than one combination in the length of cyclic prefix CP and power ratio information.
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| CN201410182435.2A CN105025519B (en) | 2014-04-30 | 2014-04-30 | Interference signal measurement method and relevant device |
| PCT/CN2015/077255 WO2015165356A1 (en) | 2014-04-30 | 2015-04-23 | Authentication information transmitting method and terminal |
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| CN111869153B (en) * | 2018-03-05 | 2023-07-07 | 高通股份有限公司 | Cross-link interference detection and mitigation |
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| CN110545164A (en) * | 2018-05-28 | 2019-12-06 | 华为技术有限公司 | Method and apparatus for interference indication in a communication system |
| CN110545164B (en) * | 2018-05-28 | 2022-09-02 | 华为技术有限公司 | Method and apparatus for interference indication in a communication system |
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| WO2015165356A1 (en) | 2015-11-05 |
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