CN102387528B - A kind of interferometry information notice method, interference detecting method, base station and terminal - Google Patents

A kind of interferometry information notice method, interference detecting method, base station and terminal Download PDF

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Publication number
CN102387528B
CN102387528B CN201110350479.8A CN201110350479A CN102387528B CN 102387528 B CN102387528 B CN 102387528B CN 201110350479 A CN201110350479 A CN 201110350479A CN 102387528 B CN102387528 B CN 102387528B
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transmission node
interferometry
interference
information
reference pilot
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CN201110350479.8A
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CN102387528A (en
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李儒岳
陈艺戬
郭森宝
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中兴通讯股份有限公司
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Abstract

The present invention provides a kind of interferometry information notice method, including:Base station notifies the configuration information and N of terminal M set channel measurement pilot frequencies to cover the configuration information of interferometry reference pilot, and M, N is natural number.The present invention also provides a kind of interference detecting method, including:Terminal receives the configuration information for the M set channel measurement pilot frequencies that base station is sent and the configuration information of N set interferometry reference pilots, K kinds hypothesis is obtained according to the M transmitting situations for covering the useful signal transmitting situation of the corresponding transmission node of channel measurement pilot frequency and the interference information of the corresponding transmission node of N set interferometry reference pilots, the interference information under the K kinds are assumed is calculated according to interferometry reference pilot, further obtain the channel quality information under the K kinds are assumed and feed back to the base station, the K is natural number.The present invention also provides a kind of base station and terminal.The present invention measures interference information by interference channel, and interferometry is more accurate.

Description

A kind of interferometry information notice method, interference detecting method, base station and terminal

Technical field

The present invention relates to the communications field, being related in a kind of communication system is used for interferometry information notice method, interference survey Amount method, base station and terminal.

Background technology

In long evolving system (LTE:Long Term Evolution) in, reflect the information of down physical channel state That is channel condition information (CSI:Channel State Information) mainly include 3 partial contents:Channel quality is indicated (CQI:Channels quality indication), pre-coding matrix instruction (PMI:Pre-coding Matrix ) and order instruction (RI Indicator:Rank Indicator).

Wherein, CQI is a fine or not index of measurement down channel quality.CQI uses 0 in the agreements of 3GPP TS 36.213 ~15 integer value represents that represent different CQI grades respectively, different CQI correspond to respective modulation system and coding Code check (Modulation and Coding Scheme, MCS), is divided into 16 kinds of situations, can be represented using 4 bit informations, As shown in table 1.

Table 1:Relation between CQI indexes and MCS

In LTE, CQI feedback is meant that:User equipment (User Equipment, UE) is according to channel quality, choosing Select a kind of suitable transmission block modulating-coding grade and recommend base station so that base station is modulated coding according to the information can be most Good degree plays the transmittability of its channel.

From another angle CQI it can be appreciated that the quantization of channel quality information, if quality is good, can support compared with The modulation coding mode of high-order, obtains higher speed;If of poor quality, it can only be passed with the modulation coding mode of lower-order It is defeated, to ensure the robustness of transmission.In multiple-input and multiple-output (Multiple-Input Multiple-Output, MIMO), The CQI typically recommended has hypothesis below:

(1) base station uses the RI of recommendation to be advised as RI data of number of plies simultaneous transmission of spatial reuse, and using in agreement Fixed layer mapping mode;

(2) with the PMI recommended to signal precoding processing;

(3) interference and noise are obtained by UE measurements.

According to (1) (2) (3) and using the receiving algorithm of terminal actual use, obtained after being handled according to the receiving algorithm Signal to Interference plus Noise Ratio (Signal to Interference plus Noise Ratio, SINR) calculates CQI.

RI, PMI and CQI calculating have more ripe algorithm, such as optimal RI, PMI is chosen using capacity maximal criterion And CQI.General, RI/PMI/CQI is not selection independent mutually, and selection algorithm is usually unified selection.RI/PMI/ CQI is calculated and the order of accuarcy of selection is influenceed by 2 aspects:Channel measurement and interference noise measurement.

Channel measurement can be public reference signal (the Common Reference in LTE/LTE-A systems Signal, CRS) or channel condition information measuring reference signals (Channel State Information Reference Signal, CSI-RS)

At present, due to preferable pilot design, accurate channel measurement can be carried out by CRS or CSI-RS.

Interference noise measurement is then a technical bottleneck, and the interference information of mistake may cause the number of plies and actual channel quality Situation is mismatched, such as can only actually support 2 layers, but due to the measuring error of interference noise information, be mistaken for that 4 can be supported Layer, may so cause the bit error rate very high.Or, the code modulation mode of low order can only be actually supported, and be mistaken for propping up High-order coded modulation is held, the bit error rate is also resulted in too high.Conversely, be then possibly able to support multilayer and high-order coded modulation, it is real Border has only used small layers and low order coded system to be transmitted, and causes the waste of transfer resource.

The measurement of noise is general comparatively fairly simple because noise it is general by device itself the reason for produce.And do The situation of disturbing mostlys come from other cells or other nodes, and because other cells or the transmission technology of transmission node are different, example Such as precoding difference, transmission signal difference may all cause interference with the change of situation.So, the measurement of interference is in the prior art A technical problem.

Existing interference detecting method has many kinds, main to include three kinds:Interferometry is carried out based on CRS, based on CSI- RS carries out interferometry, and, interferometry is carried out based on proprietary demodulation pilot tone or transmission data.

Wherein, its thought of the interferometry based on CRS is, the interference that CRS is subject to as data-signal (Data) by Interference.This method is a kind of current main stream approach, it is considered that CRS is similar with the disturbed condition that data are subject to, and by It is higher in CRS density, can be with a certain degree of letter for telling interference information and reference signal according to the correlation of channel Breath, so the performance of channel estimation is also relatively good.

Another method is to carry out interferometry according to CSI-RS, during due to carrying out interferometry according to CSI-RS, CSI-RS density is more more sparse, so jamming performance is slightly poor, but is due to that pattern same problems of the CRS in minizone is frequent In the presence of (the reason for density is higher is caused), thus CRS measure some be the Pilot Interference from other cells without It is data interference, so it is inaccurate to have some for this angle.And CSI-RS is relatively low due to pilot density, in the absence of this Problem, it is possible to which selection carries out interferometry with CSI-RS.

A kind of typical method of prior art interferometry is:

The interference being subject on measurement pilot tone CRS or CSI-RS, and think on the disturbed condition and CRS that are subject on data channel Or the interference being subject on CSI-RS is approximate.

It is characterized in measurement interference signal that one typical, as shown in figure 1, concretely comprising the following steps:

Step 1:Channel estimation is carried out, using relativity of time domain, influence of the frequency domain correlation to reduce interference noise is obtained Channel H of the accurate service node to UE;

Step 2:The data s of the pilot tone sent according to service node (TP1) and the channel estimated, obtain receiving in signal The component of signal Hs that this service node is sent;

Step 3:Using receive signal subtract this service node transmission component of signal Hs calculate obtain interference and noise system Count information.

Still an alternative is that:

Combined Treatment is carried out to the subcarrier on multiple subcarriers, statistical average filters out useful signal, obtained remaining Interference information.

The thought of both approaches is all to survey interference signal.But the problem in systems in practice, existed is, interference is surveyed The subframe of amount is not equal to subframe during transmission, and both subframes are differed.In general, being believed in n-th subframe Road mass measurement (including channel and interferometry), and actual transmissions occur in the N+a subframe.A be generally 10 ms and More than.General channel will not have greatly changed in a short time, but interference problem and TP2, TP3......TPn scheduling Situation is relevant, and it is therefore possible to have greatly changed.

In view of interference variations reason, a kind of method is that the interference being subject on N-b~N-a is counted, but this Method still not can solve interference variations problem.As shown in Figure 2, although statistical average has been carried out to 10 subframes, but It is to disturb still to miscount.Such as, if scheduling subframe is data (Data) frame, half has only been calculated in interference;If scheduling sublayer Frame is blank (Blank) frame, and interference can be calculated more.D represents Data in Fig. 2, and B represents Blank.

Therefore, there is problems demand improvement in existing interference detecting method.

The content of the invention

The technical problem to be solved in the present invention is to provide a kind of interferometry information notice method, interference detecting method, base Stand and terminal, solve the problem of existing interferometry is not accurate enough.

In order to solve the above problems, the invention provides a kind of interferometry information notice method, including:

Base station notifies the configuration information and N of terminal M set channel measurement pilot frequencies to cover the configuration information of interferometry reference pilot, M, N are natural number.

Further, the above method can also have the characteristics that, the base station is by wireless network control signaling by the N The configuration information of set interferometry reference pilot is sent to the terminal.

Further, the above method can also have the characteristics that, as M > 1:

The N set interferometries reference pilot is the subset that the M covers channel measurement reference pilot;Or, the N sets are dry Disturb measurement reference pilot and M set channel measurement reference pilots have common factor.

The present invention also provides a kind of interference detecting method, including:

Terminal receives the configuration information of M set channel measurement pilot frequencies and the matching somebody with somebody for N set interferometry reference pilots that base station is sent Confidence ceases, and M, N is natural number;

Terminal launches situation according to the M useful signals for covering the corresponding transmission node of channel measurement pilot frequency and the N covers The transmitting situation of the interference information of the corresponding transmission node of interferometry reference pilot obtains K kinds it is assumed that joining according to interferometry Examine pilot tone and calculate the K kinds and assume lower interference information, further obtain channel quality information under the K kinds hypothesis and anti- Feed the base station, the K is natural number.

Further, the above method can also have the characteristics that, described to calculate the K according to interferometry reference pilot The interference information planted under assuming includes:

Obtained to every kind of it is assumed that being issued according to the hypothesis and penetrating the corresponding interferometry reference pilot of transmission node of interference information The channel matrix of interference channel is taken, the interference information from the transmission node is obtained according to the channel matrix.

Further, the above method can also have the characteristics that, as M > 1:

The N set interferometry reference pilots cover the subset of channel measurement reference pilot, and N < M for the M;Or, institute State N set interferometry reference pilots and M set channel measurement reference pilots have common factor.

Further, the above method can also have the characteristics that, the M covers the corresponding transmission node of channel measurement pilot frequency The transmitting situation of useful signal includes following 2MAny of-a kind of situation is a variety of:

Each transmission node transmitting in transmission node A1~AM or does not launch useful signal at useful signal, and totally 2MPlant hair Penetrate situation, remove all transmission nodes and do not send out the situation for setting useful signal, totally 2M- a kind of useful signal situation;

A1~AM is respectively the corresponding transmission node of the M sets channel measurement reference pilot.

Further, the above method can also have the characteristics that, the N sets interferometry reference pilot is corresponding to transmit section The transmitting situation of the interference information of point includes following 2NAny of the situation of kind is a variety of:

Each transmission node in transmission node B1~BN launches interference information or does not launch interference information, and combination is obtained Totally 2NPlant interference information transmitting situation;

B1~BN is respectively the corresponding transmission node of the N sets interferometry reference pilot.

Further, the above method can also have the characteristics that, the N sets interferometry reference pilot is corresponding to transmit section The transmitting situation of the interference information of point at least includes two kinds:

Each transmission node in transmission node B1~BN launches interference information;

Each transmission node in transmission node B1~BN does not launch interference information;

B1~BN is respectively the corresponding transmission node of the N sets interferometry reference pilot.

Further, the above method can also have the characteristics that, the N sets interferometry reference pilot is corresponding to transmit section The transmitting situation of the interference information of point at least includes:

Each transmission node in transmission node B1~BN launches interference information;B1~BN is respectively the N sets interference Measure the corresponding transmission node of reference pilot.

Further, the above method can also have the characteristics that, the N sets interferometry reference pilot is corresponding to transmit section The transmitting situation of the interference information of point at least includes:

Each transmission node in transmission node B1~BN does not launch interference information;B1~BN is respectively that the N sets are dry Disturb the corresponding transmission node of measurement reference pilot.

Further, the above method can also have the characteristics that, the interferometry ginseng in the case of every kind of useful signal transmitting Examine pilot tone dynamic definition.

Further, the above method can also have the characteristics that, send the transmission node of useful signal not in the interference Information is sent on the corresponding running time-frequency resource position in running time-frequency resource position that measurement reference pilot takes.

The present invention also provides a kind of base station, and the base station is used for:Notify terminal M set channel measurement pilot frequency configuration information and N covers the configuration information of interferometry reference pilot, and the M, N is natural number.

Further, above-mentioned base station can also have the characteristics that, the base station is to be used for:Pass through wireless network control signaling The N configuration informations for covering interferometry reference pilot are sent to the terminal.

Further, above-mentioned base station can also have the characteristics that, as M > 1:

The N set interferometries reference pilot is the subset that the M covers channel measurement reference pilot;Or, the N sets are dry Disturb measurement reference pilot and M set channel measurement reference pilots have common factor.

The present invention also provides a kind of terminal, including receiving unit, interferometry unit and feedback unit, wherein:

The receiving unit is used for:Receive the configuration information and N set interferometries for the M set channel measurement pilot frequencies that base station is sent The configuration information of reference pilot, M, N is natural number;

The interferometry unit is used for:The useful signal of the corresponding transmission node of channel measurement pilot frequency is covered according to the M It is false that the transmitting situation of transmitting situation and the interference information of the corresponding transmission node of N set interferometry reference pilots obtains K kinds If calculating the interference information under the K kinds are assumed according to interferometry reference pilot, further obtain under the K kinds hypothesis Channel quality information, the K be natural number;

The feedback unit is used for, and the channel quality information feedback that the interferometry unit is obtained gives the base Stand.

Further, above-mentioned terminal can also have the characteristics that, as M > 1:

The N set interferometry reference pilots cover the subset of channel measurement reference pilot, and N < M for the M;Or, institute State N set interferometry reference pilots and M set channel measurement reference pilots have common factor.

Further, above-mentioned terminal can also be had the characteristics that, the interferometry unit is led according to interferometry reference The interference information that frequency meter is calculated under the K kinds are assumed includes:

Obtained to every kind of it is assumed that being issued according to the hypothesis and penetrating the corresponding interferometry reference pilot of transmission node of interference information The channel matrix of interference channel is taken, the interference information from the transmission node is obtained according to the channel matrix.

Further, above-mentioned terminal can also have the characteristics that,

The hair of the useful signal for the corresponding transmission node of M set channel measurement pilot frequencies that the interferometry unit is obtained Penetrating situation includes following 2MAny of-a kind of situation is a variety of:

Each transmission node transmitting in transmission node A1~AM or does not launch useful signal at useful signal, and totally 2MPlant hair Penetrate situation, remove all transmission nodes and do not send out the situation for setting useful signal, totally 2M- a kind of useful signal situation;

A1~AM is respectively the corresponding transmission node of the M sets channel measurement reference pilot.

Further, above-mentioned terminal can also be had the characteristics that, the N set interference that the interferometry unit is obtained is surveyed Measuring the transmitting situation of the interference information of the corresponding transmission node of reference pilot includes following 2NAny of the situation of kind is a variety of:

Each transmission node in transmission node B1~BN launches interference information or does not launch interference information, and combination is obtained Totally 2NPlant interference information transmitting situation;

B1~BN is respectively the corresponding transmission node of the N sets interferometry reference pilot.

Further, above-mentioned terminal can also be had the characteristics that, the N set interference that the interferometry unit is obtained is surveyed Measuring the transmitting situation of the interference information of the corresponding transmission node of reference pilot at least includes two kinds:

Each transmission node in transmission node B1~BN launches interference information;

Each transmission node in transmission node B1~BN does not launch interference information;

B1~BN is respectively the corresponding transmission node of the N sets interferometry reference pilot.

Further, above-mentioned terminal can also be had the characteristics that, the N set interference that the interferometry unit is obtained is surveyed The transmitting situation of the interference information of the corresponding transmission node of amount reference pilot at least includes:

Each transmission node in transmission node B1~BN launches interference information;B1~BN is respectively the N sets interference Measure the corresponding transmission node of reference pilot.

Further, above-mentioned terminal can also be had the characteristics that, the N set interference that the interferometry unit is obtained is surveyed The transmitting situation of the interference information of the corresponding transmission node of amount reference pilot at least includes:

Each transmission node in transmission node B1~BN does not launch interference information;B1~BN is respectively that the N sets are dry Disturb the corresponding transmission node of measurement reference pilot.

Further, above-mentioned terminal can also have the characteristics that, the interferometry ginseng in the case of every kind of useful signal transmitting Examine pilot tone dynamic definition.

Further, above-mentioned terminal can also have the characteristics that, the terminal not on the transmission node of useful signal with The corresponding running time-frequency resource position in running time-frequency resource position that the interferometry reference pilot takes sends information.

The interference detecting method that the present invention is provided, interference is obtained by interference channel, the method than measuring interference signal It is more accurate.The other present invention can feed back the channel quality information of a variety of disturbed conditions, and base station can be according to different scheduling Situation predicts code modulation mode during transmission to select suitable channel quality information.

Brief description of the drawings

Fig. 1 is existing interferometry schematic diagram;

Fig. 2 is another schematic diagram of existing interferometry;

Fig. 3 is the interferometry schematic diagram of the embodiment of the present invention 1;

Fig. 4 is the interferometry schematic diagram of the embodiment of the present invention 9;

Fig. 5 is the interferometry schematic diagram of the embodiment of the present invention 10;

Fig. 6 is the interferometry schematic diagram of the embodiment of the present invention 12;

Fig. 7 is terminal block diagram of the embodiment of the present invention.

Embodiment

For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with accompanying drawing to the present invention Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application Feature can mutually be combined.

The embodiments of the invention provide a kind of interferometry information notice method, including:

Base station notifies the configuration information and N of terminal M set channel measurement pilot frequencies to cover the configuration information of interferometry reference pilot, M, N are natural number.

Wherein, the base station covers the N by wireless network control signaling the configuration information of interferometry reference pilot It is sent to the terminal.

Wherein, as M > 1:The N set interferometries reference pilot is the subset that the M covers channel measurement reference pilot; Or, N set interferometry reference pilots and M the set channel measurement reference pilot, which exists, to occur simultaneously.It is of course also possible to N set interference Measure reference pilot and M set channel measurement reference pilots are not present and occured simultaneously.

The embodiment of the present invention additionally provides a kind of method of interferometry, including:

Terminal receives the configuration information of M set channel measurement pilot frequencies and the matching somebody with somebody for N set interferometry reference pilots that base station is sent Confidence ceases, and M, N is natural number;

Terminal launches situation according to the M useful signals for covering the corresponding transmission node of channel measurement pilot frequency and the N covers The transmitting situation of the interference information of the corresponding transmission node of interferometry reference pilot obtains K kinds it is assumed that joining according to interferometry Examine pilot tone and calculate the K kinds and assume lower interference information, further obtain the channel quality information (the under the K kinds hypothesis One channel quality information, second channel quality information ... K channel quality informations) and feed back to the base station.

Wherein, the configuration information of the N sets interferometry reference pilot notifies terminal by base station by RRC signaling.

Wherein, the interference information that the interferometry reference pilot is calculated under the K kinds are assumed includes:

Obtained to every kind of it is assumed that being issued according to the hypothesis and penetrating the corresponding interferometry reference pilot of transmission node of interference information The channel matrix of interference channel is taken, the interference information from the transmission node is obtained according to the channel matrix.

Wherein, terminal covers the position measurement interference channel HI1......HIN of interferometry reference pilot, and root in the N The disturbance situation under K kinds are assumed is obtained according to the interference channel information HI1......HIN of measurement, further K kinds are obtained not With the channel quality information under disturbed condition.

Wherein, channel measurement pilot frequency is covered when UE is configured with M, during M > 1:The N sets interferometry reference pilot can be M Cover the subset of channel measurement reference pilot, and N < M;Or, N set interferometry reference pilots and M the set channel measurement reference The subset of pilot tone, which exists, occurs simultaneously.Such as, channel measurement pilot frequency is configured with 1,2,3, and interferometry reference pilot is its in this 3 sets In 1,2, or, channel measurement pilot frequency is configured with 1,2, interferometry reference pilot configuration 2,3.It is of course also possible to which N set interference is surveyed Measure reference pilot and M set channel measurement reference pilots are not present and occured simultaneously.

Wherein, when carrying out channel quality measurement respectively for M set channel measurement pilot frequencies and feeding back respectively, interferometry is led The definition of frequency can be different.Such as, channel is surveyed in configuration 1,2,3, during the channel quality of measurement 1, and 2 and/or 3 can survey as interference Pilot tone is measured, during the channel quality of measurement 2,1 and/or 3 can be used as interferometry pilot tone.

Wherein, the transmitting situation of the useful signal of the corresponding transmission node of the M sets channel measurement pilot frequency includes following 2M- Any of a kind of situation is a variety of:

Each transmission node transmitting in transmission node A1~AM or does not launch useful signal at useful signal, and totally 2MPlant hair Penetrate situation, remove all transmission nodes and do not send out the situation for setting useful signal, totally 2M- a kind of useful signal situation;

A1~AM is respectively the corresponding transmission node of the M sets channel measurement reference pilot.

Wherein, the transmitting situation of the interference information of the corresponding transmission node of the N sets interferometry reference pilot is included such as Lower 2NAny of the situation of kind is a variety of:

Each transmission node in transmission node B1~BN launches interference information or does not launch interference information, and combination is obtained Totally 2NPlant interference information transmitting situation;

B1~BN is respectively the corresponding transmission node of the N sets interferometry reference pilot.

Wherein, the transmitting situation of the interference information of the corresponding transmission node of the N sets interferometry reference pilot is at least wrapped Include:

Each transmission node in transmission node B1~BN launches interference information;B1~BN is respectively the N sets interference Measure the corresponding transmission node of reference pilot.

If in the case of a certain useful information transmitting, its interferometry reference pilot is N1, and N1 < N are then now disturbed The transmitting situation for measuring the interference information of the corresponding transmission node of reference pilot is 2N1Any of the situation of kind is a variety of, specifically Which 2N1Plant the transmitting situation for the interference information for referring to the corresponding transmission node of N set interferometry reference pilots.

Wherein, the transmitting situation of the interference information of the corresponding transmission node of the N sets interferometry reference pilot is at least wrapped Include:

Each transmission node in transmission node B1~BN does not launch interference information;B1~BN is respectively that the N sets are dry Disturb the corresponding transmission node of measurement reference pilot.

The transmitting situation that the N covers the interference information of the corresponding transmission node of interferometry reference pilot at least includes two Kind:

Each transmission node in transmission node B1~BN launches interference information;

Each transmission node in transmission node B1~BN does not launch interference information;

B1~BN is respectively the corresponding transmission node of the N sets interferometry reference pilot.

Wherein, a kind of disturbed condition of hypothesis at least includes, it is assumed that have the interference from transmission node Bp, and nothing comes from The interference of transmission node in B1......BN in addition to Bp.P=1,2......N.

Wherein, the disturbed condition of multiple hypotheses at least includes two kinds of situations below:

There is the interference from B1......Bn

Without two kinds of the interference from B1......Bn;

There is the interference from Bp, the interference without all transmission nodes in B1......BN in addition to Bp, P=1;

There is the interference from Bp correspondence transmission nodes, without all transmission nodes in B1......BN in addition to Bp Interference, P=2;

There is the interference from Bp, the interference without all transmission nodes in B1......BN in addition to Bp, P=N;

Without the interference from Bp correspondence transmission nodes, there is the interference channel correspondence in addition to Bp in B1......BN All transmission nodes interference, P=1;

Without the interference from Bp, there are the interference of all transmission nodes in B1......BN in addition to Bp, P=2;

Without the interference from Bp, there are the interference of all transmission nodes in B1......BN in addition to Bp, P=N;

Wherein, on the running time-frequency resource position that the interferometry pilot tone takes, service node (sends the transmission of useful signal Node) do not send information in corresponding running time-frequency resource position.

Wherein, channel measurement pilot frequency dynamic definition of the interferometry pilot tone based on actual use.That is, every kind of useful letter Number transmitting in the case of interferometry reference pilot dynamic definition.

Wherein, above-mentioned N sets interferometry reference pilot can be specific configuration information or configured information, refer to Show which set in M set channel measurement reference pilots is used for interferometry.

Such as, a kind of configuring condition is as follows:M set channel measurement pilot frequencies are 1,2,3, when interferometry pilot tone is also 1,2,3, Terminal can obtain following multiple hypotheses:

1 transmission useful signal, 2,3 have interference, or, 2, and 3 is noiseless, or, 2 have interference, and 3 is noiseless;Or, 2 without dry Disturb, 3 have interference;

2 transmission useful signals, 1,3 has interference, or, 1, and 3 is noiseless, or, 1 has interference, and 3 is noiseless;Or, 1 without dry Disturb, 3 have interference.That is, the interferometry pilot tone under every kind of useful signal is assumed can be with dynamic definition.

Again such as, M sets channel measurement pilot frequency is that 1,2, N set interferometry pilot tones are 2,3.

Terminal specifically feeds back the channel quality information in the case of which, can be according to the notice of base station, and feedback base station is notified It is one or more assume lower channel quality information, can also by being pre-configured with, feed back one kind for being pre-configured with instruction or Channel quality information under multiple hypotheses, can also feed back the channel quality information under all may assume that.

Embodiment 1

As shown in figure 3, base station is configured with 3 sets of CSI-RS information by high-level signaling to UE, and then terminal can be obtained The running time-frequency resource position of this three sets of CSI-RS transmission, and transmission content information.It is wherein a set of to be used for channel measurement, in addition Two sets for interferometry.Terminal can calculate channel H1 according to CSI-RS1, can be calculated according to CSI-RS2 and CSI-RS3 Obtain H2, H3.

UE can assume that signal is transmitted on channel H1, further, can also assume have on TP2 on transmitting interference data, TP3 Also there are transmitting interference data, and the disturbed condition being subject to according to CSI-RS1 estimates from TP4......TPn and disturbs (this When, it is necessary to which in CSI-RS1 transmittings running time-frequency resource position, TP2 and TP3 do not launch any information), so, terminal can be according to H2 The interference from TP2 is calculated, calculating the interference from TP3 according to H3, and combine TP4-TPn interference acquisition hypothesis has TP2, TP3 sends total interference in the case of interference information, and the further information with reference to H1 calculates and obtains CQI1.

Embodiment 2

Similar to Example 1, difference is:UE can assume that signal is transmitted on channel H1, further, can also assume Do not launch on TP2 and do not launch interference data on interference data, TP3 yet, and estimated according to the disturbed condition being subject on CSI-RS1 Interference from TP4......TPn is not (at this time, it may be necessary to which in CSI-RS1 transmitting running time-frequency resources position, TP2 and TP3 launch any Information), so, terminal can not consider to come from TP2, and TP3 interference is only obtained under above-mentioned hypothesis according to TP4-TPn interference Total interference, the further information with reference to H1 calculates and obtains CQI2.

Embodiment 3

Similar to Example 1, difference is:UE can assume that signal is transmitted on channel H1, further, can also assume There are transmitting interference data, the upper non-emissive interference data of TP3 on TP2, and estimated according to the disturbed condition being subject on CSI-RS1 Interference from TP4......TPn is not (at this time, it may be necessary to which in CSI-RS1 transmitting running time-frequency resources position, TP2 and TP3 launch any letter Breath), so, terminal can according to H2 calculating come originally and TP2 interference, the interference from TP3 is not considered, and combine TP4- TPn interference obtains total interference under above-mentioned hypothesis, and the further information with reference to H1, which is calculated, obtains CQI3.

Embodiment 4

Similar to Example 1, difference is:UE can assume that signal is transmitted on channel H1, further, can also assume There are transmitting interference data, the upper non-emissive interference data of TP2 on TP3, and estimated according to the disturbed condition being subject on CSI-RS1 Interference from TP4......TPn is not (at this time, it may be necessary to which in CSI-RS1 transmitting running time-frequency resources position, TP2 and TP3 launch any letter Breath), so, terminal can according to H3 calculating come originally and TP3 interference, the interference from TP2 is not considered, and combine TP4- TPn interference obtains total interference under above-mentioned hypothesis, and the further information with reference to H1, which is calculated, obtains CQI4.

Embodiment 5

As embodiment 1-4, it should be pointed out that need to be configured to the corresponding transmission section of interferometry pilot tone Point, on the corresponding running time-frequency resource of channel measurement pilot frequency, can not send out data, otherwise can interfere and be computed repeatedly.

Embodiment 6

Terminal can also calculate two kinds of CQI in embodiment 1,2,3,4, and feed back two kinds of CQI.For example, terminal assumes have TP2 and TP3 interference, calculates the CQI1 and feedback in embodiment 1;And, terminal is assumed, without there is TP2 and TP3 interference, to calculate and implement CQI2 and feedback in example 2.

Embodiment 7

Terminal can also calculate two kinds of CQI in embodiment 1,2,3,4, and feed back two kinds of CQI.Such as, terminal assumes have TP2 and TP3 interference, calculates the CQI1 and feedback in embodiment 1;And, terminal assumes there is TP2 interference, no TP3 interference, calculates CQI3 and feedback in embodiment 3.

Embodiment 8

Terminal can also calculate four kinds of CQI in embodiment 1,2,3,4, and feed back four kinds of CQI.Or, terminal also may be used To calculate 3 kinds of CQI in embodiment 1,2,3,4, and feed back 3 kinds of CQI.

Embodiment 9

As shown in figure 4, base station is configured with 2 sets of CSI-RS information by high-level signaling to UE, and then terminal can be obtained The running time-frequency resource position of this 2 sets of CSI-RS transmission, and transmission content information.Wherein 1 set for channel measurement, in addition 1 Cover for interferometry.

Terminal can calculate channel H1 according to CSI-RS1, calculated according to CSI-RS2 and obtain H2.

UE can assume that signal is transmitted on channel H1, further, can also assume there are transmitting interference data on TP2, and root Disturbing (at this time, it may be necessary to when CSI-RS1 launches from TP3......TPn is estimated according to the CSI-RS1 disturbed conditions being subject to Frequency resource location, TP2 does not launch any information), so, terminal can according to H2 calculating come originally and TP2 interference, and combine TP3-TPn interference, which is obtained, assumes that TP2 has the total interference sent in the case of interference information, and the further information for combining H1 is calculated Obtain CQI1;

Or,

UE assumes that signal transmit on channel H1, further, can also assume on TP2 non-emissive interference data, and according to The disturbed condition that CSI-RS1 is subject to estimates disturbing from TP3......TPn.So, terminal can not consider to come from TP2 Interference, only obtained according to TP3-TPn interference and assume that TP2 does not send total interference in the case of interference information, further CQI2 is obtained with reference to H1 information calculating;

Or,

UE can also calculate CQI1 and CQI2 according to the above method, and all be fed back.

Embodiment 10

As shown in figure 5, base station is configured with 3 sets of CSI-RS information by high-level signaling to UE, and then terminal can be obtained The running time-frequency resource position of this 3 sets of CSI-RS transmission, and transmission content information.Wherein 2 sets for channel measurement, in addition 1 Cover for interferometry.

Terminal can calculate channel H1 according to CSI-RS1, and acquisition H2 can be calculated according to CSI-RS2.According to CSI-RS3 Calculating obtains H3.

UE can assume that signal is transmitted on channel H1 and H2, further, can also assume there are transmitting interference data on TP3, And according to CSI-RS1 or the CSI-RS2 disturbed condition being subject to estimate from the disturbing of TP4......TPn (at this time, it may be necessary to CSI-RS1 or CSI-RS2 transmittings running time-frequency resource position, TP3 does not launch any information), so, terminal can according to H3 calculating come Originally and TP3 interference, and combine TP4-TPn interference obtain assume TP3 have send interference information in the case of total interference, enter The combination H1, H2 of one step information calculate and obtain CQI1;

Or,

UE can assume that signal is transmitted on channel H1 and H2, further, can also assume that non-emissive disturbs data on TP3, And according to CSI-RS1 or the CSI-RS2 disturbed condition being subject to estimate from the disturbing of TP4......TPn (at this time, it may be necessary to CSI-RS1 or CSI-RS2 transmitting running time-frequency resources position, TP3 does not launch any information), so, terminal can be according to TP4-TPn Interference obtain and assume TP3 without total interference in the case of sending interference information, further with reference to H1, H2 information is calculated and obtained CQI2;

Or,

UE can also calculate CQI1 and CQI2 according to the above method, and all be fed back.

Embodiment 11

Base station is configured with 3 sets of CSI-RS information by high-level signaling to UE, and then terminal can obtain this 3 sets of CSI-RS Transmission running time-frequency resource position, and transmission content information.Wherein 2 sets, for channel measurement, are surveyed for 1 set for disturbing in addition Amount.Terminal can calculate channel H1 according to CSI-RS1, and acquisition H2 can be calculated according to CSI-RS2.Calculated according to CSI-RS3 Obtain H3.

UE can assume that signal is transmitted on channel H1, and no data is transmitted on channel H2, further, can also be assumed on TP3 There are transmitting interference data, and estimated according to CSI-RS1 or the CSI-RS2 disturbed condition being subject to from the dry of TP4......TPn (at this time, it may be necessary in CSI-RS1 or CSI-RS2 transmitting running time-frequency resources position, TP3 does not launch any information) is disturbed, so, terminal can With according to H3 calculate come originally and TP3 interference, and combine TP4-TPn interference obtain assume TP3 have transmission interference information feelings Total interference under condition, the further information with reference to H1 calculates and obtains CQI1;

Or,

UE can assume that signal is transmitted on channel H2, the upper no data transmission of H1, further, can also assume there is hair on TP3 Blackberry lily disturbs data, and estimates disturbing from TP4......TPn according to CSI-RS1 or the CSI-RS2 disturbed condition being subject to (at this time, it may be necessary in CSI-RS1 or CSI-RS2 transmittings running time-frequency resource position, TP3 does not launch any information), so, terminal can be with According to H3 calculate the interference from TP3, and combine TP4-TPn interference obtain assume TP3 have transmission interference information in the case of Total interference, the further information with reference to H2 calculates and obtains CQI2;

Or,

UE can assume that signal is transmitted on channel H1, the upper no data transmission of H2, further, can also assume on TP3 without hair Blackberry lily disturbs data, and estimates disturbing from TP4......TPn according to CSI-RS1 or the CSI-RS2 disturbed condition being subject to (at this time, it may be necessary in CSI-RS1 or CSI-RS2 transmittings running time-frequency resource position, TP3 does not launch any information), so, terminal can be with Total interference in the case of hypothesis TP3 non-emissive interference informations is obtained according to TP4-TPn interference, further combined with H1 information meter Calculation obtains CQI3;

Or,

UE can assume that signal is transmitted on channel H2, the upper no data transmission of H1, further, can also assume on TP3 without hair Blackberry lily disturbs data, and estimates disturbing from TP4......TPn according to CSI-RS1 or the CSI-RS2 disturbed condition being subject to (at this time, it may be necessary in CSI-RS1 or CSI-RS2 transmittings running time-frequency resource position, TP3 does not launch any information), so, terminal can be with Obtained according to TP4-TPn interference and assume TP3 without total interference in the case of sending interference information, the further information for combining H2 Calculating obtains CQI4;

Or,

UE can also calculate in CQI1 and CQI2, CQI3, CQI4 any X according to the above method, feed back the X information, 1 < X≤4.

Such as, UE can also according to the above method calculate CQI1, CQI2, CQI3, CQI4, feed back CQI1, CQI2, CQI3, CQI4;

UE can also be calculated according to the above method and be fed back CQI1 and CQI2;

UE can also be calculated according to the above method and be fed back CQI3 and CQI4;

UE can also be calculated according to the above method and be fed back CQI1 and CQI3;

UE can also be calculated according to the above method and be fed back CQI2 and CQI4.

Embodiment 12

As shown in fig. 6, base station is configured with 3 sets of CSI-RS information by high-level signaling to UE, and then terminal can be obtained The running time-frequency resource position of this 3 sets of CSI-RS transmission, and transmission content information.

Wherein CSI-RS1, CSI-RS2 are used for channel measurement, and CSI-RS2, CSI-RS3 is used for interferometry.

Terminal can calculate channel H1 according to CSI-RS1, and acquisition H2 can be calculated according to CSI-RS2.According to CSI-RS3 Calculating obtains H3.

Assume useful signal part:A TP1 transmission useful signal is assume that, TP2 transmission useful signals, TP1 and TP2 These three situations of common transport useful signal.

Interference sections are assumed:

During TP1 transmission useful signal, it can be assumed that TP2, TP3 are noiseless, TP2, and TP3 has interference, and TP2 has interference TP3 is noiseless, and TP3 has interference, and TP2 noiseless situations, TP4-TPn has interference, and interference signal is measured according to CSI-RS1;

During TP2 transmission useful signal, it can be assumed that TP1, TP3 are noiseless, TP1, and TP3 has interference, and TP1 has interference TP3 is noiseless, and TP3 has interference, and TP1 noiseless situations, TP4-TPn has interference, and interference signal is measured according to CSI-RS1;

During TP1 and TP2 transmission useful signals, there can be interference or noiseless with TP3, TP4-TPn has interference, according to CSI- RS1 measures interference signal;

Take a kind of TCP data segment to assume to assume to report CQI with interference sections, or take a variety of different data transfer parts Divide and assume to assume to report a variety of CQI with interference sections.

Embodiment 13

Base station is configured with 3 sets of CSI-RS information by high-level signaling to UE, and then terminal can obtain this 3 sets of CSI-RS Transmission running time-frequency resource position, and transmission content information.

Terminal can calculate channel H1 according to CSI-RS1, and acquisition H2 can be calculated according to CSI-RS2.According to CSI-RS3 Calculating obtains H3.

Assume useful signal part:A TP1 transmission useful signal is assume that, a TP2 transmission useful signal a, TP3 is passed Defeated useful signal, TP1 and TP2 common transport useful signals, TP2 and TP3 common transport useful signals, TP1 and TP3 common transports Useful signal, TP1, TP2, TP3 common transport useful signals, totally 7 kinds of situations.

Interference sections are assumed:

Interferometry pilot set is the subset of channel measurement set (CSI feedback set), and for different useful letters Number transmission it is assumed that interferometry pilot set is different.

Such as, it is assumed that during TP1 transmission useful signal, CSI-RS2 and CSI-RS3 are interferometry pilot set, can be with Assuming that TP2 have interference TP3 it is noiseless, TP3 have interference TP2 it is noiseless, TP2, TP3 has interference, and TP2, TP3 is noiseless. TP4-TPn has interference, and interference signal is measured according to CSI-RS1;

Assuming that when only TP2 transmits useful signal, CSI-RS1 and CSI-RS3 are interferometry pilot set, it can be assumed that TP1 have interference TP3 it is noiseless, TP1 have interference TP3 it is noiseless, TP1, TP3 has interference, and TP1, TP3 is noiseless.TP4-TPn There is interference, interference signal is measured according to CSI-RS2;

Assuming that when only TP3 transmits useful signal, CSI-RS1 and CSI-RS2 are interferometry pilot set, it can be assumed that TP1 have interference TP2 it is noiseless, TP2 have interference TP1 it is noiseless, TP1, TP2 has interference, and TP1, TP2 is noiseless.TP4-TPn There is interference, interference signal is measured according to CSI-RS3;

Assuming that when TP1, TP2 transmit useful signal, CSI-RS3 is interferometry pilot set, it can be assumed that TP3 has dry Disturb, TP3 is noiseless.TP4-TPn has interference, and interference signal is measured according to CSI-RS1 or CSI-RS2;

Assuming that when TP1, TP3 transmit useful signal, CSI-RS2 is interferometry pilot set, it can be assumed that TP2 has dry Disturb, TP2 is noiseless.TP4-TPn has interference, and interference signal is measured according to CSI-RS1 or CSI-RS3;

Assuming that when TP2, TP3 transmit useful signal, CSI-RS1 is interferometry pilot set, it can be assumed that TP1 has dry Disturb, TP1 is noiseless.TP4-TPn has interference, and interference signal is measured according to CSI-RS2 or CSI-RS3;

Assuming that when TP1, TP2, TP3 transmit useful signal, TP4-TPn has interference, according to CSI-RS1 or CSI-RS2 or CSI-RS3 measures interference signal;

Take a kind of useful signal part to assume to assume to report CQI with interference sections, or take a variety of different useful signal portions Divide and assume to assume to report a variety of CQI with interference sections.

Embodiment 14

Such as the situation in embodiment 1-13, UE reports the CQI under multiple hypotheses, and base station is received after above-mentioned CQI, according to scheduling Situation further determine which kind of assume best suit current dispatch situation.If not complying fully with, certain folding is carried out Calculate or predict.

The embodiment of the present invention provides a kind of base station, and the base station is used for:Notify terminal M set channel measurement pilot frequencies matches somebody with somebody confidence Breath and N cover the configuration information of interferometry reference pilot, and the M, N is natural number.

Wherein, the base station is to be used for:The N is covered by matching somebody with somebody for interferometry reference pilot by wireless network control signaling Confidence breath is sent to the terminal.

Wherein, as M > 1:

The N set interferometries reference pilot is the subset that the M covers channel measurement reference pilot;Or, the N sets are dry Disturb measurement reference pilot and M set channel measurement reference pilots have common factor.It is of course also possible to N set interferometry reference pilots and M Cover channel measurement reference pilot and be not present and occur simultaneously.

The embodiment of the present invention also provides a kind of terminal, as shown in fig. 7, comprises receiving unit, interferometry unit and feedback Unit, wherein:

The receiving unit is used for:Receive the configuration information and N set interferometries for the M set channel measurement pilot frequencies that base station is sent The configuration information of reference pilot, M, N is natural number;

The interferometry unit is used for:The useful signal of the corresponding transmission node of channel measurement pilot frequency is covered according to the M It is false that the transmitting situation of transmitting situation and the interference information of the corresponding transmission node of N set interferometry reference pilots obtains K kinds If calculating the interference information under the K kinds are assumed according to interferometry reference pilot, further obtain under the K kinds hypothesis Channel quality information, the K be natural number;

The feedback unit is used for, and the channel quality information feedback that the interferometry unit is obtained gives the base Stand.

Wherein, as M > 1:

The N set interferometry reference pilots cover the subset of channel measurement reference pilot, and N < M for the M;Or, institute State N set interferometry reference pilots and M set channel measurement reference pilots have common factor.

Wherein, the interference that the interferometry unit is calculated according to interferometry reference pilot under the K kinds are assumed is believed Breath includes:

Obtained to every kind of it is assumed that being issued according to the hypothesis and penetrating the corresponding interferometry reference pilot of transmission node of interference information The channel matrix of interference channel is taken, the interference information from the transmission node is obtained according to the channel matrix.

Wherein, the useful letter for the corresponding transmission node of M set channel measurement pilot frequencies that the interferometry unit is obtained Number transmitting situation include following 2MAny of-a kind of situation is a variety of:

Each transmission node transmitting in transmission node A1~AM or does not launch useful signal at useful signal, and totally 2MPlant hair Penetrate situation, remove all transmission nodes and do not send out the situation for setting useful signal, totally 2M- a kind of useful signal situation;

A1~AM is respectively the corresponding transmission node of the M sets channel measurement reference pilot.

Wherein, the N that the interferometry unit is obtained covers the dry of the corresponding transmission node of interferometry reference pilot Disturbing the transmitting situation of information includes following 2NAny of the situation of kind is a variety of:

Each transmission node in transmission node B1~BN launches interference information or does not launch interference information, and combination is obtained Totally 2NPlant interference information transmitting situation;

B1~BN is respectively the corresponding transmission node of the N sets interferometry reference pilot.

Wherein, the N that the interferometry unit is obtained covers the dry of the corresponding transmission node of interferometry reference pilot Disturbing the transmitting situation of information at least includes two kinds:

Each transmission node in transmission node B1~BN launches interference information;

Each transmission node in transmission node B1~BN does not launch interference information;

B1~BN is respectively the corresponding transmission node of the N sets interferometry reference pilot.

Wherein, the N that the interferometry unit is obtained covers the dry of the corresponding transmission node of interferometry reference pilot Disturbing the transmitting situation of information at least includes:

Each transmission node in transmission node B1~BN launches interference information;B1~BN is respectively the N sets interference Measure the corresponding transmission node of reference pilot.

Wherein, the N that the interferometry unit is obtained covers the dry of the corresponding transmission node of interferometry reference pilot Disturbing the transmitting situation of information at least includes:

Each transmission node in transmission node B1~BN does not launch interference information;B1~BN is respectively that the N sets are dry Disturb the corresponding transmission node of measurement reference pilot.

Wherein, the interferometry reference pilot dynamic definition in the case of every kind of useful signal transmitting.

Wherein, the time-frequency that the terminal takes not on the transmission node of useful signal with the interferometry reference pilot The corresponding running time-frequency resource position of resource location sends information.

One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program Related hardware is completed, and described program can be stored in computer-readable recording medium, such as read-only storage, disk or CD Deng.Alternatively, all or part of step of above-described embodiment can also use one or more integrated circuits to realize.Accordingly Each module/unit in ground, above-described embodiment can be realized in the form of hardware, it would however also be possible to employ the shape of software function module Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.

Claims (22)

1. a kind of interferometry information notice method, including:
Base station notifies the configuration information and N of terminal M set channel measurement pilot frequencies to cover the configuration information of interferometry reference pilot, M, N For natural number;
Wherein, M is worked as>When 1:
The N set interferometries reference pilot is the subset that the M covers channel measurement reference pilot;Or, the N sets interference is surveyed Measure reference pilot and M set channel measurement reference pilots have common factor.
2. the method as described in claim 1, it is characterised in that the base station is covered the N by wireless network control signaling The configuration information of interferometry reference pilot is sent to the terminal.
3. a kind of interference detecting method, it is characterised in that including:
Terminal receive base station send M set channel measurement pilot frequency configuration information and N set interferometry reference pilot match somebody with somebody confidence Breath, M, N is natural number;
Terminal launches situation according to the M useful signals for covering the corresponding transmission node of channel measurement pilot frequency and N sets are disturbed The transmitting situation of the interference information of the corresponding transmission node of measurement reference pilot obtains K kinds it is assumed that being led according to interferometry reference Frequency meter calculates the interference information under the K kinds are assumed, further obtains the channel quality information under the K kinds are assumed and feeds back to The base station, the K is natural number;
Wherein, M is worked as>When 1:
The N set interferometry reference pilots cover the subset of channel measurement reference pilot, and N for the M<M;Or, the N sets Interferometry reference pilot and M set channel measurement reference pilots, which exist, to occur simultaneously.
4. method as claimed in claim 3, it is characterised in that described that the K kinds are calculated according to interferometry reference pilot Assuming that under interference information include:
It is assumed that being issued according to the hypothesis and penetrating the corresponding interferometry reference pilot of transmission node of interference information obtain dry to every kind of The channel matrix of channel is disturbed, the interference information from the transmission node is obtained according to the channel matrix.
5. method as claimed in claim 3, it is characterised in that
The transmitting situation that the M covers the useful signal of the corresponding transmission node of channel measurement pilot frequency includes following 2MIn-a kind of situation It is any one or more:
Each transmission node transmitting in transmission node A1~AM or does not launch useful signal at useful signal, and totally 2MPlant transmitting feelings Condition, removes all transmission nodes and does not send out the situation for setting useful signal, and totally 2M- a kind of useful signal situation;
A1~AM is respectively the corresponding transmission node of the M sets channel measurement reference pilot.
6. method as claimed in claim 3, it is characterised in that the N covers the corresponding transmission node of interferometry reference pilot Interference information transmitting situation include following 2NAny of the situation of kind is a variety of:
Each transmission node transmitting interference information in transmission node B1~BN does not launch interference information, and combination obtains totally 2N Plant interference information transmitting situation;
B1~BN is respectively the corresponding transmission node of the N sets interferometry reference pilot.
7. method as claimed in claim 3, it is characterised in that the N covers the corresponding transmission node of interferometry reference pilot Interference information transmitting situation at least include two kinds:
Each transmission node in transmission node B1~BN launches interference information;
Each transmission node in transmission node B1~BN does not launch interference information;
B1~BN is respectively the corresponding transmission node of the N sets interferometry reference pilot.
8. method as claimed in claim 3, it is characterised in that the N covers the corresponding transmission node of interferometry reference pilot The transmitting situation of interference information at least include:
Each transmission node in transmission node B1~BN launches interference information;B1~BN is respectively the N sets interferometry The corresponding transmission node of reference pilot.
9. method as claimed in claim 3, it is characterised in that the N covers the corresponding transmission node of interferometry reference pilot The transmitting situation of interference information at least include:
Each transmission node in transmission node B1~BN does not launch interference information;B1~BN is respectively that the N sets interference is surveyed Measure the corresponding transmission node of reference pilot.
10. the method as described in claim 3 to 9 is any, it is characterised in that the interference in the case of every kind of useful signal transmitting is surveyed Measure reference pilot dynamic definition.
11. the method as described in claim 3 to 9 is any, it is characterised in that send the transmission node of useful signal not described Information is sent on the corresponding running time-frequency resource position in running time-frequency resource position that interferometry reference pilot takes.
12. a kind of base station, it is characterised in that the base station is used for:Terminal M is notified to cover the configuration information and N of channel measurement pilot frequency The configuration information of interferometry reference pilot is covered, the M, N is natural number;
Wherein, M is worked as>When 1:
The N set interferometry reference pilots cover the subset of channel measurement reference pilot, and N for the M<M;Or, the N sets Interferometry reference pilot and M set channel measurement reference pilots, which exist, to occur simultaneously.
13. base station as claimed in claim 12, it is characterised in that the base station is to be used for:Pass through wireless network control signaling The N configuration informations for covering interferometry reference pilot are sent to the terminal.
14. a kind of terminal, it is characterised in that including receiving unit, interferometry unit and feedback unit, wherein:
The receiving unit is used for:Receive configuration information and the N set interferometry references for the M set channel measurement pilot frequencies that base station is sent The configuration information of pilot tone, M, N is natural number;
The interferometry unit is used for:The useful signal transmitting of the corresponding transmission node of channel measurement pilot frequency is covered according to the M The transmitting situation of situation and the interference information of the corresponding transmission node of N set interferometry reference pilots obtains K kinds it is assumed that root The interference information under the K kinds are assumed is calculated according to interferometry reference pilot, the channel under the K kinds are assumed further is obtained Quality information, the K is natural number;
The feedback unit is used for, and the channel quality information feedback that the interferometry unit is obtained gives the base station;
Wherein, M is worked as>When 1:
The N set interferometry reference pilots cover the subset of channel measurement reference pilot, and N for the M<M;Or, the N sets Interferometry reference pilot and M set channel measurement reference pilots, which exist, to occur simultaneously.
15. terminal as claimed in claim 14, it is characterised in that the interferometry unit is according to interferometry reference pilot The interference information calculated under the K kinds are assumed includes:
It is assumed that being issued according to the hypothesis and penetrating the corresponding interferometry reference pilot of transmission node of interference information obtain dry to every kind of The channel matrix of channel is disturbed, the interference information from the transmission node is obtained according to the channel matrix.
16. terminal as claimed in claim 14, it is characterised in that
The transmitting feelings of the useful signal for the corresponding transmission node of M set channel measurement pilot frequencies that the interferometry unit is obtained Condition includes following 2MAny of-a kind of situation is a variety of:
Each transmission node transmitting in transmission node A1~AM or does not launch useful signal at useful signal, and totally 2MPlant transmitting feelings Condition, removes all transmission nodes and does not send out the situation for setting useful signal, and totally 2M- a kind of useful signal situation;
A1~AM is respectively the corresponding transmission node of the M sets channel measurement reference pilot.
17. terminal as claimed in claim 14, it is characterised in that the N set interference that the interferometry unit is obtained is surveyed Measuring the transmitting situation of the interference information of the corresponding transmission node of reference pilot includes following 2NAny of the situation of kind is a variety of:
Each transmission node transmitting interference information in transmission node B1~BN does not launch interference information, and combination obtains totally 2N Plant interference information transmitting situation;
B1~BN is respectively the corresponding transmission node of the N sets interferometry reference pilot.
18. terminal as claimed in claim 14, it is characterised in that the N set interference that the interferometry unit is obtained is surveyed Measuring the transmitting situation of the interference information of the corresponding transmission node of reference pilot at least includes two kinds:
Each transmission node in transmission node B1~BN launches interference information;
Each transmission node in transmission node B1~BN does not launch interference information;
B1~BN is respectively the corresponding transmission node of the N sets interferometry reference pilot.
19. terminal as claimed in claim 14, it is characterised in that the N set interference that the interferometry unit is obtained is surveyed The transmitting situation of the interference information of the corresponding transmission node of amount reference pilot at least includes:
Each transmission node in transmission node B1~BN launches interference information;B1~BN is respectively the N sets interferometry The corresponding transmission node of reference pilot.
20. terminal as claimed in claim 14, it is characterised in that the N set interference that the interferometry unit is obtained is surveyed The transmitting situation of the interference information of the corresponding transmission node of amount reference pilot at least includes:
Each transmission node in transmission node B1~BN does not launch interference information;B1~BN is respectively that the N sets interference is surveyed Measure the corresponding transmission node of reference pilot.
21. the terminal as described in claim 14 to 20 is any, it is characterised in that the interference in the case of every kind of useful signal transmitting Measure reference pilot dynamic definition.
22. the terminal as described in claim 14 to 20 is any, it is characterised in that the terminal is not in the transmission section of useful signal Running time-frequency resource position corresponding with the running time-frequency resource position that the interferometry reference pilot takes sends information on point.
CN201110350479.8A 2011-11-08 2011-11-08 A kind of interferometry information notice method, interference detecting method, base station and terminal CN102387528B (en)

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