CN110012504A

CN110012504A - A kind of information transferring method, base station and network management unit

Info

Publication number: CN110012504A
Application number: CN201810009351.7A
Authority: CN
Inventors: 柯颋; 邵华; 夏亮
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Co Ltd
Priority date: 2018-01-05
Filing date: 2018-01-05
Publication date: 2019-07-12
Anticipated expiration: 2038-01-05
Also published as: CN110012504B

Abstract

The embodiment of the present invention provides a kind of information transferring method, base station and network management unit.Wherein method includes: that the base station is determined with reference to frame structure；The base station determines the first downlink transfer resource collection according to the last one downlink OFDM symbol in a frame period to the spacing between the first reference point；Wherein, described to be included at least with reference to frame structure: the frame period of reference frame and the first reference point.While the solution of the present invention effectively evades base station Heterogeneity to adversely affecting caused by telepoint base station interference management process, so that far-end interference rollback is more efficient.

Description

A kind of information transferring method, base station and network management unit

Technical field

The present invention relates to the communications field, a kind of information transferring method, base station and network management unit are particularly related to.

Background technique

Telepoint base station interference phenomenon coverage is especially wide (several hundred km), may relate to more cities, more provinces or even multinational Base station between family.Different cities, province or even country use the base station equipment of different vendor, if without standardized remote Interference management mechanism is held, different manufacturer's cooperation will be especially difficult.

In view of the above-mentioned problems, having standardized telepoint base station interference management mechanism in a kind of LTE network, such as Fig. 1 in the prior art Shown in frame structure and interference backing method shown in Fig. 2, telepoint base station interference management mechanism mainly includes 2 steps:

1) positioning causes applying for far-end interference to disturb base station；

2) frame structure for disturbing base station is applied by manual type adjustment.

As depicted in figs. 1 and 2, for LTE network by special subframe (S) default configuration at the structure of 9:3:2, i.e. LTE's is special Subframe includes 14 OS (OFDM symbol, the abbreviation of OFDM symbol), wherein #0-#8 OS is configured to DL, #9-#11 OS It is configured to GP, remaining #12-#13 OS is configured to UL.

1) positioning causes applying for far-end interference to disturb base station

At least one first base station is selected within the period 1 using 1024 radio frames as period 1 (corresponding to 10.24s) Particular radio frames are selected, the first reference signal is constantly sent, wherein the first reference signal is for finding and the interference of locating distal base station Source.

Particularly, offset of the particular radio frames within the period 1 is determined by the ID of the first base station.Therefore, when When second base station listens to the first reference signal, bits of offset of the radio frames within the period 1 in conjunction with where the first reference signal It sets, the part attribute of energy reverse push export first base station ID.

Specifically, it is (corresponding that first base station is fixed on last 2 OS in the DwPTS of subframe 1 in the radio frames chosen In #7-#8 OS) the first reference signal of middle transmission.

On the other hand, first base station needs to attempt to detect what other base stations were sent in all radio frames within the period 1 Second reference signal, to find and position the far-end interference from other base stations.

Particularly, first base station in each radio frames UpPTS and subframe 2 in totally 16 OS (correspond to special subframe #12-#13 OS, in addition all OS of subframe 2) on listen to the second reference signal.

2) frame structure for disturbing base station is applied by manual type adjustment

First base station once detects some second reference signal, then is reported to network management unit.

Network management unit is according to deviation post of the radio frames within the period 1, reverse-direction derivation where second reference signal The ID of third base station out, wherein third base station has sent the second reference signal.

The special subframe of third base station is changed to the structure for being made into 3:9:2 subsequently through manual type, i.e., by LTE special subframe Middle #0-#2 OS is configured to DL, and #3-#11 OS is configured to GP, and remaining #12-#13 OS is configured to UL.

Compared with the 9:3:2 frame structure of default, the frame structure of 3:9:2 has used less DL symbol, therefore has reason the phase The DL transmission of the base station of 3:9:2 frame structure to be employed can reduce the UL interference to other telepoint base stations.

By above-mentioned introduction can be seen that LTE now net in the telepoint base station interference management method that uses there are problems that 2:

1. inflexible: once orienting far-end interference base station, frame structure can only be modulated by manual type and be interfered It retracts；

2. performance loss is big: interference, which retracts, can only select the frame structure of 3:9:2.Compared with 9:3:2,3:9:2 has lost 6 Downlink OFDM symbol, downlink transfer performance loss are larger.

For above-mentioned inflexible problem, in the prior art, the telepoint base station interference management managed based on wide area SON is proposed Process is as shown in Figure 3:

1. base station V detects telepoint base station interference phenomenon；

2. reporting potential interference to wide area SON；

3. wide area SON notifies base station V to send RS1；

4. wide area SON notice base station A listens to RS1；

5. base station V repeats to send RS1；

6. base station A repeats detection RS1；

7. base station A reports interference detection results to wide area SON；

8. wide area SON is base station A configuration interference fallback mechanism；

9. base station A executes interference rollback operation.

For flexibility, compared with during LTE is now netted using the prior art of frame structure is manually adjusted, base shown in Fig. 3 It can coordinate base station behavior more flexiblely in the technology of wide area SON BTS management, change base station frame structure, therefore this method is more Add flexibly.

For rollback performance loss, compared with the prior art for fixing the 6 downlink OFDM symbols that retract during LTE is now netted, Technology shown in Fig. 3 based on wide area SON BTS management can targetedly adjust DL based on the Interference Detection range detected Rollback duration (is likely less than 6 OFDM symbols), therefore the loss of network performance caused by this method is smaller.

Particularly, it is given below in homogeneous network (assuming that all base stations are all configured using identical frame structure), base In the workflow and its example of wide area SON BTS management mechanism.

As shown in figure 4, the TRP is determined from the before GP (protection interval) when a certain TRP is configured as sending a RS 1 downlink OFDM symbol (downlink OFDM symbol) starts, and uses at least one downlink OFDM symbol send the RS forward.And When some TRP is configured as receiving a RS, which is determined from the 1st upgoing O FDM sign-on after GP, is used backward The RS is listened at least one upgoing O FDM symbol.Wherein, the RS can be used for detecting telepoint base station interference phenomenon.

Telepoint base station interference management process and telepoint base station interference detection RS time domain shown in Fig. 4 as shown in connection with fig. 3 is received Resource location is sent out, homogeneous network can work normally.

It is the topology diagram of TRP1 and TRP2 shown in Fig. 5；

Fig. 6 is data field interference characteristic, schematic diagram of the UL data of TRP1 and TRP2 by the interference of DL data each other；

Fig. 7 is TRP1 triggering telepoint base station interference management process (being related to steps 1 and 2,3,4,5,6,7).TRP1 is before GP Last 2 DL OFDM symbols on send RS, TRP2 listens to RS in multiple UL OFDM symbols after the GP, and reports and listen to As a result: interference effect section is 1 OFDM symbol；

Fig. 8 is interference rollback and its effect (being related to step 8,9).Wide area SON configures TRP2 2 DL OFDM symbols of rollback, It is influenced with eliminating TRP2 to the far-end interference of TRP1

As shown in Figure 5 and Figure 6, TRP1 and TRP2 is apart about 3.5 OS (OFDM symbol, the abbreviation of OFDM symbol), And identical frame structure (i.e. within the identical period, TRP1 is identical with UL configuration with DL, GP of TRP2) is used, and TRP1 keeps synchronous with TRP2 in time.

Due to special atmospheric propagation environment, signal that TRP1 and TRP2 are sent in the downlink OFDM symbol of part can be with Certain receiving power level reaches in the part upgoing O FDM symbol of other side, and then as high reject signal, to its UL data Transmission performance causes to influence more by force.For example, in Fig. 6, TRP1 and the TRP2 meeting on about 1.5 upgoing O FDM symbols after GP By the interference from other side base station DL signal.

TRP1 and TRP2 judges that its interference may be from telepoint base station by the statistical law of detection interference signal, into And it is reported to wide area SON, to trigger the telepoint base station interference management process shown in Fig. 3 based on wide area SON management.

It is noted that the telepoint base station interference management process that TRP1 and TRP2 independent triggers are managed based on wide area SON.In Fig. 7 In Fig. 8, only illustrates TRP1 and triggers the relevant treatment after the telepoint base station interference management process based on wide area SON management, And its effect.By the process, TRP2 carries out DL rollback under the configuration of wide area SON, with eliminate its for caused by TRP1 it is remote End interference.

As seen from Figure 8, it after the telepoint base station interference management process that TRP1 triggering is managed based on wide area SON, can eliminate TRP2 far-end interference caused by it.However, TRP2 still will receive the far-end interference of TRP1.Therefore, a kind of naturally to grasp As similar to shown in Fig. 5 and Fig. 6, TRP2 equally triggers the telepoint base station interference management stream together based on wide area SON management Journey, to eliminate TRP1 far-end interference caused by it.Therefore, by aforesaid operations, it is right that TRP1 and TRP2 can effectively eliminate its The far-end interference caused by other side.

Particularly, it is thin to further illustrate the operation based on the wide area SON telepoint base station interference management process managed by Fig. 7 and Fig. 8 Section, comprising:

The statistics rule that step 1:TRP1 (being base station V in flow chart, wherein V represents victim) passes through detection interference signal Rule, judges that its interference may be from telepoint base station；

Disturbed condition is reported to wide area SON by step 2:TRP1, to trigger the telepoint base station interference managed based on wide area SON Management process；

Step 3: wide area SON notice TRP1 sends dedicated telepoint base station in last 2 DL OFDM symbols before GP Interference detection reference signal, referred to as the first RS；

Step 4: wide area SON notice including TRP2 including at least one it is potential apply disturb base station (in flow chart be base station A, Wherein A represents aggressor) the first RS is listened in multiple UL OFDM symbols after the GP；

Step 5:TRP1 is configured according to wide area SON and is sent the first RS；

Step 6:TRP2 listens to the first RS according to wide area SON configuration, and first upgoing O FDM most after GP The first RS is listened in symbol；

Intercepted result, including biggest impact range (such as 1 OFDM symbol) are reported to wide area SON by step 7:TRP2；

Step 8: wide area SON configures TRP2 and executes interference rollback operation, enables its 2 downlink OFDM symbol that at least retract；

Step 9:TRP2 configures the interference rollback operation for executing 2 downlink OFDM symbols according to wide area SON, right to eliminate its The far-end interference caused by TRP1.

The transmitting-receiving time-domain resource position of above-mentioned telepoint base station interference detection RS shown in Fig. 4 is in homogeneous network (i.e. hypothesis institute There is base station all to configure using identical frame structure) under can work normally, but (i.e. some base stations are adopted in network in heterogeneous network Configured with different frame structure) in may not be able to but work normally, enhanced.

Summary of the invention

The present invention provides a kind of information transferring method, base station and network management units.Effectively evade base station Heterogeneity While to being adversely affected caused by telepoint base station interference management process, so that far-end interference rollback is more efficient.

In order to solve the above technical problems, the embodiment of the present invention provides following scheme:

A kind of information transferring method is applied to base station, comprising:

The base station, which determines, refers to frame structure；

The base station is determined according to the last one downlink OFDM symbol in a frame period to the spacing between the first reference point First downlink transfer resource collection；Wherein, described to be included at least with reference to frame structure: the frame period of reference frame and the first reference Point.

Wherein, if containing at least one downlink OFDM symbol in the first downlink transfer resource collection, under first At least one OFDM symbol in row sets of transmission resources using following at least one method, including does not send downlink data, limitation Downtilt value range and limitation down transmitting power value range.

It is wherein, described not send downlink data, further includes:

The base station being adjusted when communicating with the terminal that it is serviced, used uplink and/or downlink time-domain transmission resource are matched It sets, including is used downlink OFDM symbol as protection interval GP or upgoing O FDM symbol.

Wherein, when base station determines the first downlink transfer resource collection, if the last one downlink OFDM symbol is joined to first Spacing between examination point is greater than or equal to the first duration, then it is null set that the first downlink transfer resource collection, which is arranged,；Otherwise, it is arranged A continuous downlink OFDM symbol is included at least in first downlink transfer resource collection, and guarantees the first downlink transfer resource set First OFDM symbol is greater than or equal to the first duration to the spacing between the first reference point in conjunction.

Wherein, before the base station determines the first downlink transfer resource collection, further includes:

The base station determines the first duration according to the second duration；Alternatively,

The base station receives the 7th instruction information, determines the first duration；Wherein, the 7th instruction information passes through network management list At least one of signaling indicating means carrying between position configuration, base station.

Wherein, described with reference in frame structure further include: the second reference point.

Wherein, before the base station determines the first duration, further includes:

The base station determines the second duration；Second duration indicates: the can be farthest listened to after the second reference point The symbol of one reference signal is to the time gap between the second reference point.

Wherein, the base station is according at least one of signaling instruction side between prespecified, network management unit configuration, base station Method determines described with reference to frame structure.

Wherein, the base station is configured between base station described at least one of signaling instruction method determination by network management unit When with reference to frame structure, following at least one instruction information is received:

The base station receives the first instruction information, and the first instruction information is for determining the frame period；

The base station receives second indication information, and the second indication information is for determining the second reference point, wherein described Second indication information includes third duration, and the time gap of preset boundary in second reference point to the frame period is equal to The third duration；

The base station receives third and indicates information, and the third instruction information is for determining the first reference point, wherein described Third indicates that information includes the 4th duration, and first reference point is equal to institute to the time gap between second reference point The 4th duration is stated, in the frame period, first reference point is corresponding, and that it is late is corresponding in second reference point Time.

The base station receives the 4th instruction information, and the 4th instruction information includes: the first transmission change-over period, Ji First upper limit in one transmission change-over period for the transfer resource of downlink transfer；

The base station determines described with reference to frame structure, including following at least one method according to the 4th instruction information:

The base station determines the frame period of the reference frame according to the first transmission change-over period；

The base station determines the second reference point according to first upper limit.

Wherein, it is determined according to following at least one method described with reference to frame structure, comprising:

The base station determines that the frame period of the reference frame was equal to for the first transmission change-over period；

The base station determines that maximum can use downlink transfer resource in the first transmission change-over period according to first upper limit Set；The base station is equal to the maximum at the beginning of determining the second reference point can use last in downlink transfer resource collection The finish time of a downlink transfer resource.

Wherein, the base station is beginning listening for the first reference signal from the second reference point.

Wherein, the first reference signal is listened in the 5th duration since the second reference point in the base station.

Wherein, the base station passes through prespecified, determines the 5th duration；Alternatively,

The base station receives the 5th instruction information, determines the 5th duration；Wherein, the 5th instruction information passes through network management list At least one of signaling indicating means carrying between position configuration, base station.

Wherein, the base station sends the second reference in time interval [first the-the six duration of reference point, the first reference point] Signal, wherein the time domain length of a length of second reference signal when the 6th.

Wherein, the base station passes through prespecified, determines the 6th duration；Alternatively,

The base station receives the 6th instruction information, determines the 6th duration；Wherein, the 6th instruction information passes through network management list At least one of signaling indicating means carrying between position configuration, base station.

Wherein, the first reference signal is listened in multiple continuous or discrete reference frame in the base station.

Wherein, the base station determines the first duration according to the second duration, further includes:

The duration set for first duration=be made of the second duration observed at least one first reference signal Maximum value；Alternatively,

First duration=by what is formed at least one { second+the first constant of duration that the first reference signal is observed } The maximum value of duration set.

Wherein, information transferring method further include:

The base station reports signaling to network management unit transmission, reports the first measurement result；Wherein, the first measurement result For the measurement result of the first reference signal.

It is wherein, described that report signaling further include at least one of following information:

The Base Station Identification, for the reception function of the second duration of at least one the first reference signal, the first reference signal The strength grade of the reception power excursion and the first reference signal of rate, the first reference signal；

Wherein, power=first Reference Signal Received Power that receives of the first reference signal deviates the+the first reference signal Receive power excursion reference value.

Wherein, it is described report in signaling include the first reference signal reception power when, the base station by it is prespecified, At least one of signaling indicating means between the configuration of network management unit, base station determines the unit of the reception power of the first reference signal；

It is described report in signaling include the first reference signal reception power excursion when, the base station by it is prespecified, At least one of signaling indicating means between the configuration of network management unit, base station determines the reception power excursion ginseng of the first reference signal Examine the unit of the reception power excursion of value and the first reference signal；

When the strength grade reported in signaling including the first reference signal, the base station passes through prespecified, network management At least one of signaling indicating means, determines the signal being made of at least one signal strength scale between unit configuration, base station Strength grade set.

The embodiment of the present invention also provides a kind of information transferring method, is applied to network management unit, comprising:

Frame structure is referred at least one first base station and/or the configuration of the second base station, the frame structure that refers to includes: described The frame period of reference frame, and following at least one information: the second reference point and the first reference in the frame period of the reference frame Point.

Wherein, information transferring method, further includes:

The signaling that reports that at least one first base station reports is received, it is described to report signaling for reporting the first measurement result； Wherein, the first measurement result is the measurement result of the first reference signal.

Wherein, information transferring method, further includes:

Network management unit receive the first base station report signaling after, sent to base station and execute interference rollback operation Indicate information.

Wherein, information transferring method, further includes:

Network management unit feedback signaling is sent at least one first base station, the feedback signaling is for when notifying first It is long.

Wherein, before at least one first base station sends network management unit feedback signaling, further includes:

Network management unit determines the first duration according to the second duration；Wherein,

The embodiment of the present invention also provides a kind of base station, comprising:

Processor refers to frame structure for determining；And according to the last one downlink OFDM symbol in a frame period to first Spacing between reference point determines the first downlink transfer resource collection；Wherein, described to be included at least with reference to frame structure: reference frame The frame period and the first reference point.

The embodiment of the present invention also provides a kind of network management unit, comprising:

Processor, for referring to frame structure, the reference frame knot at least one first base station and/or the configuration of the second base station Structure includes: the frame period of the reference frame, and following at least one information: the second reference point in the frame period of the reference frame With the first reference point.

The embodiment of the present invention also provides a kind of communication equipment, comprising: processor, the storage for being stored with computer program Device when the computer program is run by processor, executes method as described above.

The embodiment of the present invention also provides a kind of computer readable storage medium, including instruction, when described instruction is calculating When machine is run, so that computer executes method as described above.

Above scheme of the invention is include at least the following beneficial effects:

Above scheme of the invention, by defining the reference frame knot except a kind of true frame structure independently of each base station Structure, each base station sends/receives telepoint base station interference detection reference signal according to reference frame structure, so that it is different effectively to evade base station While structure problem caused by telepoint base station interference management process to adversely affecting, more efficient interference rollback side is provided Case.

Detailed description of the invention

Fig. 1 is frame structure schematic diagram；

Fig. 2 is interference rollback schematic diagram；

Fig. 3 is telepoint base station interference management process；

Fig. 4 is the transmitting-receiving time-domain resource position of telepoint base station interference detection RS under homogeneous network；

Fig. 5 is the topological structure of base station under homogeneous network；

Fig. 6 is interference of the UL data of TRP1 and TRP2 under homogeneous network by DL data each other；

Schematic diagram when Fig. 7 is TRP1 triggering telepoint base station interference management process under homogeneous network；

Fig. 8 is the effect diagram that wide area SON configures 2 DL of TRP2 rollback under homogeneous network；

Fig. 9 is reference frame structural schematic diagram；

Figure 10 telepoint base station interference detection reference signal transmission/received time-domain resource position view；

Figure 11 is the schematic diagram of the second duration；

Figure 12 is interference fallback mechanism schematic diagram；

Figure 13 is in heterogeneous network of the invention: DL alignment, GP length is different, and the interference in the case of causing UL to be misaligned is returned Move back schematic diagram；

Figure 14 is the telepoint base station interference management techniques flow diagram based on interference from inhibition operating mode；

Figure 15 is semi-static frame structure schematic diagram；

Figure 16 is heterogeneous network schematic diagram.

Specific embodiment

Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the present invention without should be by embodiments set forth here It is limited.It is to be able to thoroughly understand the present invention on the contrary, providing these embodiments, and can be by the scope of the present invention It is fully disclosed to those skilled in the art.

The embodiment of the present invention provides a kind of information transferring method, is applied to base station, comprising:

The base station, which determines, refers to frame structure；

It is described with reference in frame structure further include: the second reference point in the embodiment of the invention.The embodiment defines one kind Independently of the reference frame structure except the true frame structure in each base station, each base station is referred to according to reference frame structure transmission/reception Signal (reference signal can be used for detecting telepoint base station interference phenomenon), to effectively evade base station Heterogeneity to telepoint base station It is adversely affected caused by interference management process.

In a specific embodiment of the invention, base station passes through the configuration between prespecified, network management unit OAM configuration and base station At least one of signaling (backhaul signaling) indicating means determines described with reference to frame structure, and network management unit here can manage Manage multiple base stations.

Passing through here is prespecified, refers to providing in advance in standardization agreement.

Here OAM configuration, refers to through network management unit static configuration.

Here by backhaul signal deployment between base station, refer to: assuming that there are a global or offices in network The network management unit in domain, the network management unit can semi-statically manage part in (including coordinate, and/or adjust) network Or the behavior of all base stations.The network management unit can be a physical entity, or an only pseudo-entity.The net Network administrative unit can be referred to as the titles such as SON, wide area SON, big data processing center.Network management unit passes through between base station Backhaul signaling configures the parameters such as period 1, the second reference point and the first reference point of base station.

In a specific embodiment of the invention, base station is configured in the configuration signal between base station at least by network management unit A kind of indicating means determine it is described with reference to frame structure when, including following at least one Information Indication information: the base station receives the One instruction information, the first instruction information is for determining the frame period；

Here preset boundary can be the end boundary in frame period, be also possible to the start boundary in frame period, certainly It can be other reference positions in the frame period.When preset boundary is the right margin in reference frame period, third duration and the The relationship and reference frame structure of two reference points are as shown in Figure 9.

In a specific embodiment of the invention, the base station passes through matching between prespecified, network management unit configuration and base station At least one of confidence order indicating means determines the time instruction in the frame period, the third duration and the 4th duration Unit.

The time instruction unit in frame period here, the third duration and the 4th duration includes: that absolute time refers to Show unit (such as second, millisecond, microsecond) and/or refers to OFDM (orthogonal frequency division multiplexing) number of symbols.

Wherein, when the time instruction unit is with reference to OFDM symbol number, base station is by the way that prespecified, network management unit is quiet The time span that at least one of configuration signal between state configuration and base station instruction information, directly instruction refer to OFDM symbol, Or instruction refers to the subcarrier spacing SCS of OFDM symbol and the cyclic prefix CP type with reference to OFDM indirectly, and derives ginseng Examine the time span of OFDM symbol.

In another specific embodiment of the invention, the base station is configured between base station in signaling instruction by network management unit When at least one method determines the reference frame structure, following at least one instruction information is received:

The base station receives the 4th instruction information, and the 4th instruction information includes: the first transmission change-over period, Ji First upper limit in one transmission change-over period for the transfer resource of downlink transfer.

The Target cell transmits change-over period phase to the second transmission change-over period and first that mobile communication terminal configures Together, and in the second transmission change-over period the quantity of downlink transfer resource is less than or equal to first upper limit.

In a specific embodiment of the invention, as shown in Figure 10, base station is beginning listening for the first reference from the second reference point Signal.

In the embodiment, it specifically can be the base station beginning listening for the first reference signal from the second reference point and listen to One reference signal；Preferably, base station passes through prespecified, determines the 5th duration；Alternatively, the base station receives the 5th instruction letter Breath, determines the 5th duration；Wherein, the 5th instruction information passes through at least one of signaling between the configuration of network management unit, base station Indicating means carrying.5th duration can be using any of instruction of following time unit, comprising: absolute time instruction is single Position (such as s, ms, us), and refer to OFDM symbol number.

In the embodiment, the base station sends the in the time interval [first the-the six duration of reference point, the first reference point] Two reference signals, wherein the time domain length of a length of second reference signal when the 6th.

The base station determines the 6th duration by prespecified；Alternatively, the base station receives the 6th instruction information, determine 6th duration；Wherein, the 6th instruction information passes through at least one of signaling indicating means between the configuration of network management unit, base station Carrying.6th duration can be using any of instruction of following time unit, comprising: absolute time instruction unit (such as s, Ms, us etc.), and refer to OFDM symbol number.

In a specific embodiment of the invention, the first reference is listened in multiple continuous or discrete reference frame in base station Signal.

In a specific embodiment of the invention, further includes: base station determines the second duration；Second duration indicates: second The symbol of the first reference signal can be farthest listened to after reference point to the time gap between the second reference point.

It as shown in figure 11, is the schematic diagram of the second duration.Second duration can be using instruction of following time unit It is any, comprising: absolute time indicates unit (such as s, ms, us), and refers to OFDM symbol number.

After first base station determines the second duration, further includes: the base station determines the first duration according to the second duration；Or Person,

The base station determines the first duration according to the second duration, further includes:

In a specific embodiment of the invention, information transferring method further include:

Base station reports signaling to network management unit transmission, reports the first measurement result；Wherein, the first measurement result is the The measurement result of one reference signal.

Specifically, when first base station is after measurement obtains the second duration, first base station has 2 kinds of process flow selections, packet It includes:

Opt 1: first base station sends the first signaling to network management unit, reports the first measurement result, wherein first surveys Measuring result is the measurement result to the first reference signal, corresponding to the step 7 in Fig. 3.When first base station is to network management unit After reporting first measurement result, first base station waits the next step instruction of network management unit, i.e., network management unit connects Pipe follow-up processing flow.

Opt 2: first base station active triggering following process flow, comprising: actively determine the first duration.At the place of Opt 2 It manages in process, does not need the participation of network management unit.Corresponding to the inside of base station processing in Figure 14 between step 3 and step 4.

First duration can be using any of instruction of following time unit, comprising: absolute time indicates unit (such as S, ms, us etc.), and refer to OFDM symbol number.

In the embodiment, described to report signaling further include at least one of following information: Base Station Identification, at least one Second duration of a first reference signal, the first reference signal receive power, the first reference signal reception power excursion and The strength grade of first reference signal；Wherein, the offset of the reception power of the first reference signal=first Reference Signal Received Power+ The reception power excursion reference value of first reference signal.

Wherein, when the reception power reported in signaling including the first reference signal, base station passes through prespecified, OAM At least one of signaling indicating means between (network management unit) configuration, base station determines the list of the reception power of the first reference signal Position；

When the reception power excursion reported in signaling including the first reference signal, base station is matched by prespecified, OAM It sets, at least one of signaling indicating means between base station, determines the reception power excursion reference value of the first reference signal, Yi Ji The unit of the reception power excursion of one reference signal；

It is described to report when including the strength grade of the first reference signal in signaling, base station by prespecified, OAM configuration, At least one of signaling indicating means between base station determines the signal strength scale collection being made of at least one signal strength scale It closes.

In a specific embodiment of the invention, further includes: base station receiving network managing unit receives reporting for the base station After signaling, the instruction information of the execution interference rollback operation sent to base station.

In a specific embodiment of the invention, further includes: base station receives the feedback signaling that the network management unit is sent, The feedback signaling (such as above-mentioned 7th instruction information) is for notifying the first duration.

Specifically, correspond to step 8 in Fig. 3, after network management unit receives the first signaling that first base station reports, Network management unit will comprehensively consider various factors, the measurement result reported such as first base station, it is determined whether first base station is allowed to hold Row interference rollback operation.

For example, network management unit and first base station at least one third base station close on geographical location also report For the first signaling of the first reference signal, and at least one described third base station is carrying out after interfering rollback operation, net Network administrative unit may decision do not allow temporarily first base station execute interference rollback operation.

Network management unit will wait the interference rollback operation of at least one third base station that effect occurs.Due to first base station It is approached on geographical location at least one third base station, therefore at least one third base station and first base station may all be the 4th The interference source of base station (sending the disturbed station of the first reference signal).Therefore work as the interference rollback operation of at least one third base station After effect occurs, the far-end interference degree that the 4th base station is subject to may have been greatly improved, and stop that far-end interference is reported to send out Existing event.At this moment, network management unit will not be reconfigured first base station and execute interference rollback operation.

Otherwise, if after the interference rollback operation of at least one third base station, the 4th base station still reports distal end Discovery event is interfered, that is, indicates that its telepoint base station interference problem is not still resolved, at this moment, network management unit will configure First base station executes interference rollback operation.

In the embodiment, the first duration=by what is formed for the second duration that at least one first reference signal is observed The maximum value of duration set；Alternatively,

Wherein, the first constant=first reference signal SCS is corresponding refers to OFDM symbol length.

Further, after base station determines the first duration, further includes: base station determines that downlink OFDM symbol retracts and gathers.

Wherein, as shown in figure 12, in the embodiment of the present invention, further includes: base station determines the first downlink transfer resource collection When, in which:

If the last one downlink OFDM symbol is greater than or equal to the first duration to the spacing between the first reference point, set Setting the first downlink transfer resource collection is null set；Otherwise, it is arranged in the first downlink transfer resource collection and includes at least a company Continuous downlink OFDM symbol, and guarantee that first OFDM symbol is between the first reference point in the first downlink transfer resource collection Spacing is greater than or equal to the first duration.

In a specific embodiment of the invention, if containing at least one downlink OFDM in the first downlink transfer resource collection Symbol, then at least one OFDM symbol in the first downlink transfer resource collection, to limit its far-end interference intensity, using such as Lower at least one method, comprising: do not send downlink data, limitation Downtilt value range and limitation down transmitting power and take It is worth range；Specifically, can be for each of the first downlink transfer resource collection OFDM symbol, to limit its far-end interference Intensity, using following at least one method, comprising: do not send under downlink data, limitation Downtilt value range and limitation Row transmission power value range；

Wherein, described not send DL data, it further include adjusting the base station to be used when communicating with the terminal that it is serviced Uplink and/or downlink time-domain transmission resource distribution, including using downlink OFDM symbol as protection interval GP or upgoing O FDM symbol It uses.

Finally, illustrating a specific implementation of above scheme of the invention in conjunction with Figure 13 and Figure 14:

Figure 14 is such as to be schemed based on interference from the telepoint base station interference management techniques flow diagram for inhibiting operating mode 160 It is shown:

0th step, the DL data of jamming station have interfered with the UL data receiver behavior at disturbed station；

Step 1, the interference characteristic that disturbed station detection UL data are subjected to, determines and oneself receives telepoint base station interference；

Step 2, disturbed station send the second reference signal, can be detected by other base stations (including apply and disturb base station). It is noted that the transmission of the second reference signal is conditional, i.e., only guesses when disturbed base station and oneself receive far-end interference shadow After sound, the second reference signal is just sent；

Step 3 is applied and disturbs station and listen to the second reference signal.It is noted that applying, to disturb station to listen to the behavior of the second reference signal be nothing Condition, that is, it applies and disturbs station and always try to listen to the second reference signal；

Step 4, when apply disturb station and detect the second reference signal after, apply and disturb station and determine whether to do based on the independent judgement of itself Interfere rollback operation.

Heterogeneous network as shown in Fig. 13: the case where DL, GP and UL are misaligned:

In aforementioned comparison solution shown in Fig. 10, telepoint base station interference management mechanism will fail.And in Figure 13 Shown in scheme, telepoint base station interference management mechanism can still work normally.

As shown in figure 13, the DL alignment of TRP1 and TRP2, GP length is different, and UL is caused to be misaligned；And TRP1 and TRP3 UL alignment, GP length is different, and DL is caused to be misaligned.TRP1, TRP2 and TRP3 are interfered with each other two-by-two.

In the step 1 of Figure 13, there are far-end interferences (corresponding to the step 1) in flow chart, interference signal for TRP1 discovery From TRP2 and TRP3.

In the step 2 of Figure 13, TRP1 is according to reference frame structure, in 2 downlink OFDM symbols before the first reference point Telepoint base station interference detection RS (referred to as the first RS) is sent (corresponding to the step 5) in flow chart；TRP2 and TRP3 are according to itself Frame structure listens to the first RS (corresponding to the step in flow chart at least one upgoing O FDM symbol after the second reference point It is rapid 6).TRP2 and TRP3 listens to the first RS in the third upgoing O FDM symbol most after the second reference point.At this moment, TRP2 and TRP3 has 2 kinds of process flow selections, comprising:

Opt 1:TRP2 and TRP3 sends the first signaling to network management unit, reports the first measurement result, wherein first Measurement result is the measurement result to the first reference signal, corresponding to the step 7 in Fig. 3.Specifically, TRP2 and TRP3 will be listened to As a result (i.e. the second duration=3 OFDM symbol) is reported to wide area SON.When first base station reports described to network management unit After one measurement result, first base station waits the next step instruction of network management unit, i.e. network management unit adapter tube subsequent processing Process.

Interference measurement results corresponding, that wide area SON is reported based on TRP2 and TRP3, configuration TRP2 and TRP3 execute interference Rollback operation.Wide area SON determines the first duration=+ 1 OFDM symbol of the second duration (with reference to the corresponding SCS of frame structure)=4 OFDM symbol, and configure TRP2 and TRP3 4 OFDM symbols of rollback.

Opt 2:TRP2 and TRP3 active triggering following process flow, comprising: actively determine the first duration.Opt's 2 In process flow, the participation of network management unit is not needed, at the inside of base station in Figure 14 between step 3 and step 4 Reason.

Specifically, TRP2 and TRP3 determine that the first duration=+ 1 OFDM symbol of the second duration is (corresponding with reference to frame structure SCS)=4 OFDM symbol.

In the step 3 of Figure 13, TRP2 and TRP3 determine that actual downstream OFDM symbol retracts and gather according to the first duration.Tool Body, TRP2 determines that actual downstream OFDM symbol retracts and gathers including 4 OFDM symbols, be [#2, #3, # according to the first duration 4,#5]；And TRP3 determines that actual downstream OFDM symbol rollback set includes 2 OFDM symbols according to the first duration, is [#2, # 3]。

The last implementation effect of step 3 of Figure 13, will not be again to TRP1 as it can be seen that TRP2 and TRP3 is executed after interference retracts Cause far-end interference.

However, in the prior art, as shown in Figure 15 and Figure 16, Figure 15 is a kind of semi-static frame knot that 5G NR may be used Structure configuration, wherein, it is specified that the fixed DL that is used as of the part time-domain resource at beginning is transmitted in a preset frame structure cycle T, Provide that the fixed UL that is used as of the part time-domain resource at ending is transmitted, and the time-domain resource of intermediate rest can flexibly determine that its data passes Defeated direction can not also do any data transmission.

Due to the presence of semi-static frame structure, in 5G NR network, heterogeneous network should be that a kind of typical network is special Sign.

Figure 16 is heterogeneous network Class1: DL alignment, GP length is different, and UL is caused to be misaligned；And UL pairs of TRP1 and TRP3 Together, GP length is different, and DL is caused to be misaligned.TRP1, TRP2 and TRP3 are interfered with each other two-by-two.

In Figure 16-step1, there are far-end interference, (corresponding to the step 1) in flow chart, interference signal is come for TRP1 discovery From in TRP2 and TRP3.

In Figure 16-step 2, TRP1 sends distal end base according to itself frame structure in 2 downlink OFDM symbols before GP Interference detection RS (referred to as the first RS) stand (corresponding to the step 5) in flow chart；TRP2 and TRP3 is according to itself frame structure, in GP The first RS is listened to (corresponding to the step 6) in flow chart at least one upgoing O FDM symbol afterwards.

TRP3 listens to the first RS in the third upgoing O FDM symbol most after GP, and intercepted result is reported to Wide area SON.And TRP2 can not listen to the first RS of TRP1 transmission, therefore TRP2 will not report intercepted result to wide area SON.

In Figure 16-step 3, the interference measurement results that wide area SON is reported based on TRP2 and TRP3 configure TRP2 and TRP3 Execute interference rollback operation.Particularly, since TRP2 does not report interference measurement results to wide area SON, wide area SON will not match It sets TRP2 and does interference rollback operation.And TRP3 is reported in its third upgoing O FDM symbol after GP to wide area SON and is listened to First RS, therefore wide area SON will not configure TRP3 3 downlink OFDM symbols of rollback.

But from the final operating effect of Figure 16-step 3, it can be seen that TRP2 retracts behaviour due to being not carried out interference Make, DL signal still can transmit the UL of TRP1 and cause far-end interference.And TRP2 1 downlink OFDM symbol that retracted, more Although TRP2 will not cause further far-end interference after executing interference rollback operation to TRP1, some due to having retracted more Downlink OFDM symbol, therefore its rollback operation is not most efficient.

And the above embodiment of the present invention, as shown in figure 13, TRP2 and TRP3 are executed after interfering rollback, will not be right again TRP1 causes far-end interference.

Wherein, information transferring method, further includes:

Wherein, in information transferring method, described to report signaling further include at least one of following information:

Wherein, in information transferring method, further includes:

Wherein, in information transferring method, further includes: send network management unit feedback letter at least one first base station It enables, the feedback signaling is for notifying the first duration.

It should be noted that the base station can be with any base station in heterogeneous network system, side shown in above-mentioned Fig. 9-Figure 13 All implementations in method can also reach identical technical effect suitable for the embodiment of the base station.

It should be noted that the network management unit can be with the network management unit in heterogeneous network system, above-mentioned Fig. 9- All implementations in method shown in Figure 13 can also reach identical suitable for the embodiment of the network management unit Technical effect.

The embodiment of the present invention also provides a kind of communication equipment, comprising: processor, the storage for being stored with computer program Device when the computer program is run by processor, executes method as described above.Wherein, processor, memory pass through bus Or interface connection.The communication equipment can be the network equipment, such as base station, be also possible to network management unit.

The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims

1. a kind of information transferring method is applied to base station characterized by comprising

The base station, which determines, refers to frame structure；

The base station determines first to the spacing between the first reference point according to the last one downlink OFDM symbol in a frame period Downlink transfer resource collection；Wherein, described to be included at least with reference to frame structure: the frame period of reference frame and the first reference point.

2. information transferring method according to claim 1, which is characterized in that

If containing at least one downlink OFDM symbol in the first downlink transfer resource collection, it is directed to the first downlink transfer resource At least one OFDM symbol in set using following at least one method, including does not send downlink data, limitation Downtilt Value range and limitation down transmitting power value range.

3. information transferring method according to claim 2, which is characterized in that described not send downlink data, further includes:

Adjust the base station used uplink and/or downlink time-domain transmission resource distribution when being communicated with the terminal that it is serviced, packet It includes and is used downlink OFDM symbol as protection interval GP or upgoing O FDM symbol.

4. information transferring method according to claim 1, which is characterized in that base station determines the first downlink transfer resource collection When, if the last one downlink OFDM symbol is greater than or equal to the first duration to the spacing between the first reference point, it is arranged the One downlink sets of transmission resources is null set；Otherwise, it is arranged in the first downlink transfer resource collection and includes at least one continuously Downlink OFDM symbol, and guarantee that first OFDM symbol is to the spacing between the first reference point in the first downlink transfer resource collection More than or equal to the first duration.

5. information transferring method according to claim 4, which is characterized in that determine that the first downlink transfer provides in the base station Before the set of source, further includes:

The base station receives the 7th instruction information, determines the first duration；Wherein, the 7th instruction information is matched by network management unit It sets, at least one of signaling indicating means carries between base station.

6. information transferring method according to claim 5, which is characterized in that described with reference in frame structure further include: second Reference point.

7. information transferring method according to claim 6, which is characterized in that before the base station determines the first duration, Further include:

The base station determines the second duration；Second duration indicates: the first ginseng can be farthest listened to after the second reference point The symbol of signal is examined to the time gap between the second reference point.

8. according to claim 1 or information transferring method described in 6, which is characterized in that the base station is according to prespecified, net At least one of signaling instruction method between the configuration of pipe unit, base station determines described with reference to frame structure.

9. information transferring method according to claim 8, which is characterized in that the base station is configured by network management unit and base When at least one of signaling instruction method determines the reference frame structure between standing, following at least one instruction information is received:

The base station receives second indication information, and the second indication information is for determining the second reference point, wherein described second Instruction information includes third duration, and second reference point to the frame period preset boundary time gap be equal to described in Third duration；

The base station receives third and indicates information, and the third instruction information is for determining the first reference point, wherein the third Indicate that information includes the 4th duration, and first reference point to the time gap between second reference point equal to described the Four durations, in the frame period, first reference point is corresponding, and it is late in the second reference point corresponding time.

10. information transferring method according to claim 8, which is characterized in that the base station by network management unit configuration and When at least one of signaling instruction method determines the reference frame structure between base station, following at least one instruction information is received:

The base station receives the 4th instruction information, and the 4th instruction information included: the first transmission change-over period, and was passed first First upper limit in the defeated change-over period for the transfer resource of downlink transfer；

11. information transferring method according to claim 10, which is characterized in that determine institute according to following at least one method It states with reference to frame structure, comprising:

The base station determines that maximum can use downlink transfer resource collection in the first transmission change-over period according to first upper limit； The base station is equal to the maximum at the beginning of determining the second reference point can be under the last one in downlink transfer resource collection The finish time of row transfer resource.

12. information transferring method according to claim 7, which is characterized in that

The base station is beginning listening for the first reference signal from the second reference point.

13. information transferring method according to claim 12, which is characterized in that the base station is since the second reference point The 5th duration in listen to the first reference signal.

14. information transferring method according to claim 13, which is characterized in that

The base station determines the 5th duration by prespecified；Alternatively,

The base station receives the 5th instruction information, determines the 5th duration；Wherein, the 5th instruction information is matched by network management unit It sets, at least one of signaling indicating means carries between base station.

15. information transferring method according to claim 1, which is characterized in that the base station is in time interval [the first reference The-the six duration of point, the first reference point] the second reference signal of interior transmission, wherein the time domain of a length of second reference signal is long when the 6th Degree.

16. information transferring method according to claim 15, which is characterized in that

The base station determines the 6th duration by prespecified；Alternatively,

The base station receives the 6th instruction information, determines the 6th duration；Wherein, the 6th instruction information is matched by network management unit It sets, at least one of signaling indicating means carries between base station.

17. information transferring method according to claim 12, which is characterized in that the base station is in multiple continuous or non-company The first reference signal is listened in continuous reference frame.

18. information transferring method according to claim 5, which is characterized in that the base station determines according to the second duration One duration, further includes:

First duration=by the maximum of the duration set formed for the second duration that at least one first reference signal is observed Value；Alternatively,

First duration=by the duration that forms at least one { second+the first constant of duration that the first reference signal is observed } The maximum value of set.

19. information transferring method according to claim 1, which is characterized in that further include:

The base station reports signaling to network management unit transmission, reports the first measurement result；Wherein, the first measurement result is the The measurement result of one reference signal.

20. information transferring method according to claim 19, which is characterized in that described to report signaling further include following information At least one of:

The Base Station Identification, for the second duration of at least one the first reference signal, the reception power of the first reference signal, The strength grade of the reception power excursion and the first reference signal of one reference signal；

Wherein, the reception for receiving power=first Reference Signal Received Power and deviating the+the first reference signal of the first reference signal Power excursion reference value.

21. information transferring method according to claim 20, which is characterized in that

When the reception power reported in signaling including the first reference signal, the base station passes through prespecified, network management unit At least one of signaling indicating means between configuration, base station determines the unit of the reception power of the first reference signal；

When the reception power excursion reported in signaling including the first reference signal, the base station passes through prespecified, network management At least one of signaling indicating means, determines the reception power excursion reference value of the first reference signal between unit configuration, base station, And first reference signal reception power excursion unit；

When the strength grade reported in signaling including the first reference signal, the base station passes through prespecified, network management unit At least one of signaling indicating means between configuration, base station, determines the signal strength being made of at least one signal strength scale Class set.

22. a kind of information transferring method is applied to network management unit characterized by comprising

Frame structure is referred at least one first base station and/or the configuration of the second base station, the reference frame structure includes: the reference The frame period of frame, and following at least one information: the second reference point and the first reference point in the frame period of the reference frame.

23. information transferring method according to claim 22, which is characterized in that further include:

The signaling that reports that at least one first base station reports is received, it is described to report signaling for reporting the first measurement result；Wherein, First measurement result is the measurement result of the first reference signal.

24. information transferring method according to claim 23, which is characterized in that described to report signaling further include following information At least one of:

25. information transferring method according to claim 23, which is characterized in that further include:

Network management unit receive the first base station report signaling after, to base station send execute interference rollback operation instruction Information.

26. information transferring method according to claim 23, which is characterized in that further include:

Network management unit feedback signaling is sent at least one first base station, the feedback signaling is for notifying the first duration.

27. information transferring method according to claim 26, which is characterized in that send network at least one first base station Before administrative unit feedback signaling, further includes:

28. a kind of base station characterized by comprising

Processor refers to frame structure for determining；And according to the last one downlink OFDM symbol in a frame period to the first reference Spacing between point, determines the first downlink transfer resource collection；Wherein, described to be included at least with reference to frame structure: the frame of reference frame Period and the first reference point.

29. a kind of network management unit characterized by comprising

Processor, it is described to refer to frame structure packet for referring to frame structure at least one first base station and/or the configuration of the second base station It includes: the frame period of the reference frame, and following at least one information: the second reference point in the frame period of the reference frame and the One reference point.

30. a kind of communication equipment characterized by comprising processor, the memory for being stored with computer program, the calculating When machine program is run by processor, execute as the described in any item methods of claim 1-21 or 22-27 are described in any item Method.

31. a kind of computer readable storage medium, which is characterized in that including instruction, when described instruction computer run when, make It obtains computer and executes such as the described in any item methods of claim 1-21 or the described in any item methods of 22-27.