CN105099528A - Method for coordinately sending data in adjacent sectors - Google Patents
Method for coordinately sending data in adjacent sectors Download PDFInfo
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- CN105099528A CN105099528A CN201510535188.4A CN201510535188A CN105099528A CN 105099528 A CN105099528 A CN 105099528A CN 201510535188 A CN201510535188 A CN 201510535188A CN 105099528 A CN105099528 A CN 105099528A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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Abstract
The invention provides a method for coordinately sending data in adjacent sectors. The method comprises the following steps: defining threshold values of an RSRP (Reference Signal Received Power) value and an SINR (Signal to Interference plus Noise Ratio) value received by a terminal at first, independently scheduling a terminal service by a main cell base station if the received values of the terminal are higher than the threshold values, coordinately scheduling the terminal service by the main cell base station and an adjacent base station if the received values of the terminal are lower than the threshold values, copying data sent to the terminal by an EPC (Evolved Packet Core), respectively sending the data to the main cell base station and the adjacent base station, respectively sending the same data to the terminal simultaneously by the main cell base station and the adjacent base station, and demodulating the same data sent by the main cell base station and the adjacent base station in an MIMO (Multiple Input Multiple Output) manner by the terminal. According to the method in the embodiment of the invention, interference information in an adjacent area is converted into useful signals; the receiving quality of cell edge users is increased; the utilization rate of the transmitting power of the base station is increased; the workable bandwidth of the cell edge users is expanded from a partial bandwidth to a fully available bandwidth; and thus, the throughput rate of the cell edge users can be effectively increased.
Description
Technical field
The present invention relates to field of network communication, particularly relate to the method for a kind of adjacent sectors data harmonization sending method.
Background technology
LTE(LongTermEvoution, Long Term Evolution) network coverage generally uses identical frequency, but use same frequency can cause the interference between sector.For eliminating LTE network interference, overlay area is mainly divided into center and marginal zone by correlation technique, center uses whole frequency range, marginal zone uses narrower frequency range, neighbor cell uses different frequency ranges to disturb to reduce between community in marginal zone, the method is called as coordinating district interference (ICIC), but ICIC obviously reduces the throughput of Cell Edge User by the method that restriction marginal zone uses frequency spectrum to avoid interference.
The method that the another kind avoiding LTE network to disturb is conventional is, controls sector transmission power.Because area interference is mainly present in MPS process overlay region, therefore can overlay region be effectively reduced by controlling sector transmission power, thus reduce LTE network interference.
Therefore, need one to carry bandwidth availability ratio, effectively can improve again the method for Cell Edge User throughput.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, one object of the present invention is to propose a kind of adjacent sectors data harmonization sending method, and to improve base station transmitting power utilance, Extended Cell edge customer can utilized bandwidth, and effectively improves Cell Edge User throughput.
According to the adjacent sectors data harmonization sending method of the embodiment of the present invention, comprise the following steps:
Step 1: the RSRP(ReferenceSignalReceivingPower presetting main plot, Reference Signal Received Power) threshold value RSRP
th-1and SINR(SignaltoInterferenceplusNoiseRatio, signal and noise and interference ratio) threshold value SINR
th-1;
Step 2: whether the RSRP actual value of the main plot signal that terminal judges receives and SINR actual value be respectively higher than the RSRP threshold value RSRP of main plot
th-1with SINR threshold value SINR
th-1, if so, then perform step 3, otherwise, then perform step 4;
Step 3: base station, main plot independence dispatch terminal business;
Step 4: described in described terminal judges, whether main plot has adjacent area, if there is adjacent area, judges that further whether the RSRP actual value of neighbor received signal and SINR actual value are respectively higher than the RSRP threshold value RSRP of adjacent area
th-2with SINR threshold value SINR
th-2, if so, then plan collaborative covering indication information and collaborative covering request are sent to base station, described main plot, are determined whether to carry out collaborative covering by base station, described main plot, as no, then perform step 5, in this way, then perform step 6;
Step 5: the described collaborative covering request of described terminal refusal;
Step 6: described plan collaborative covering indication information is sent to described neighbor base station by base station, described main plot;
Step 7: described neighbor base station and base station, described main plot are carried out collaborative covering and consulted;
Step 8: negotiation result is notified EPC by base station, described main plot,
Step 9: described EPC copies the terminal traffic data received, and the data copied are sent to base station, described main plot and described neighbor base station respectively;
Step 10: the identical data received from described EPC, according to the negotiate content in step 7, is being sent to described terminal by base station, described main plot and described neighbor base station mutually in the same time;
Step 11: the base station, described main plot that described end-on receives and the information that described neighbor base station sends carry out demodulation by MIMO method.
Step 12: the RSRP actual value of the described neighboring area signal received when described terminal is higher than the 3rd preset value RSRP
3, then carry out collaborative covering by neighbor base station described in described terminal notification and stop asking;
Step 13: described collaborative covering termination request is notified described EPC by described neighbor base station, described EPC stops data Replica, and the terminal traffic data of receipt of subsequent are sent to described neighbor base station.
According to the adjacent sectors data harmonization sending method of the embodiment of the present invention, first the threshold value of the RSRP value that receives of terminal and SINR value is defined, as terminal reception value higher than this threshold value then by base station, main plot independence dispatch terminal business, as terminal reception value lower than this threshold value then by base station, main plot and neighbor base station joint consultation dispatch terminal business, and copied sending to the information of terminal by EPC, send to base station, main plot and neighbor base station respectively, respectively identical information is sent to terminal by base station, main plot and neighbor base station, by terminal to base station, main plot, the information that neighbor base station sends carries out demodulation by MIMO method.
Relative in correlation technique, the signal of different adjacent area is treated as interference, if propose the RSRP actual value of terminal received signals and SINR actual value below threshold value according to the method for the embodiment of the present invention, then send identical information to terminal by main plot and adjacent area, the interfere information of adjacent area is converted into useful signal by the method according to the embodiment of the present invention, strengthen the Cell Edge User quality of reception, improve base station transmitting power utilance, Cell Edge User utilized bandwidth can expand to whole available bandwidth by fractional bandwidth, effectively improves Cell Edge User throughput.In addition, Cell Edge User information uses same frequency to send from adjacent two base stations by the method for the embodiment of the present invention, and identical information is sent by multiple antenna, thus implementation space diversity feature, and because user profile is from the correlation between different sectors transmission reduction channel, improve demodulates information performance.In addition, method according to the embodiment of the present invention proposes by EPC(EvolvedPacketCore, the packet switch core net of evolution) initial data is copied, and send to main plot and adjacent area simultaneously, decrease the time delay that main plot forwards, simultaneously because base station, main plot and neighbor base station all have spatial cache, the content sent by EPC is first stored in buffer memory, until when the time slot that two base stations are coordinated arrives, terminal data is sent at identical time slot simultaneously, preferably resolve the asynchronous problem that propagation delay time between EPC to two base station causes.
In addition, adjacent sectors according to the above embodiment of the present invention data harmonization sending method can also have following additional technical characteristic:
Wherein, in step 7, described neighbor base station is undertaken working in coordination with to cover consulting by X2 interface and base station, described main plot.
Wherein, in step 7, the antenna port number that utilized bandwidth, sending time slots, the RSRP type of service of described main plot and described adjacent area and terminal traffic use is consulted according to user type, type of service and described neighbor base station in base station, described main plot.
Wherein, described utilized bandwidth is determined according to described terminal traffic and base station, described main plot and neighbor base station busy degree.
Wherein, described utilized bandwidth adopts continuous bandwidth or discontinuous bandwidth.Utilized bandwidth can only the tape tolerance makes, and no longer divides main bandwidth of operation and the special or preferential utilized bandwidth of collaborative covering to whole bandwidth of operation.
Wherein, described sending time slots adopts fixing time slot or on-fixed time slot.
Wherein, described RSRP type of service distributes according to terminal feedback ability rating and described antenna port number, and the RSRP actual value of the other side is mutually sent to terminal by base station, described main plot and described neighbor base station in described utilized bandwidth.
Wherein, in a step 11, the base station, described main plot that described end-on receives and the described identical data that described neighbor base station sends carry out demodulation by MIMO method, comprising:
If the identical data time delay that the base station, described main plot received and described neighbor base station send is greater than t
1, then demodulation is carried out to the data first received, by after the data that receive abandon;
If the identical data time delay that the base station, described main plot received and described neighbor base station send is less than t
1, then two base stations are sent data and carry out joint demodulation.
Wherein, in a step 11, if the identical data time delay that the base station, described main plot received and described neighbor base station send is greater than t continuously
1quantity exceed preset value n
1, by n
1the average time of individual time delay feeds back to base station, described main plot, consults by base station, described main plot and described neighbor base station the time that adjustment sends identical data.
Wherein, step 12 also comprises: when the RSRP actual value of the described main plot signal that described terminal receives is lower than the first preset value RSRP
1, and when the RSRP actual value of the described neighboring area signal of described terminal reception is higher than the second preset value RSRP
2, then the reception that base station, described main plot and described neighbor base station negotiation terminal send data switches; Base station, described main plot notifies that described terminal is carried out data and sent handover operation, to complete the switching of main plot.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the flow chart of the adjacent sectors data harmonization sending method according to the embodiment of the present invention;
Fig. 2 is the collaborative covering flow chart of main plot C1 and adjacent area C2;
Fig. 3 is the switching flow figure of main plot C1 and adjacent area C2;
Fig. 4 is that the single port antenna of main plot C1 and the noise of dual-port antenna take figure;
Fig. 5 is that the single port antenna of adjacent area C2 and dual-port antenna noise take figure;
Fig. 6 be consult after single port antenna and dual-port antenna noise take figure;
Fig. 7 is main plot C1 and adjacent area C2 dividing frequency condition diagram;
Fig. 8-11 be respectively four kinds different when, terminal receives the relation of sector, Terminal Service community and collaborative coverage cell.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
The existing method avoiding LTE network to disturb mainly contains: control sector transmission power and different sectors edge region use different frequencies, but the signal of different adjacent area is all treated as interference by above two kinds of methods, the present inventor is through repeatedly groping, work out a kind of method that interfere information by adjacent area is converted into useful signal, by when terminal received signals RSRP value and SINR value are below threshold value, identical information is sent to the scheme of terminal by host sectors and adjacent area, strengthen the Cell Edge User quality of reception, improve base station transmitting power utilance, Cell Edge User utilized bandwidth can expand to whole available bandwidth by fractional bandwidth, effective raising Cell Edge User throughput.
Based on above thought, the embodiment of the present invention provides a kind of adjacent sectors data harmonization sending method, and the flow chart of the method as shown in Figure 1-Figure 3.Wherein, Fig. 1 is the flow chart of the adjacent sectors data harmonization sending method according to the embodiment of the present invention.Fig. 2 is the collaborative covering flow chart of main plot C1 and adjacent area C2.Fig. 3 is the switching flow figure of main plot C1 and adjacent area C2.Adjacent sectors data harmonization sending method according to the embodiment of the present invention comprises the following steps:
Step 1: the RSRP threshold value RSRP presetting main plot C1
th-1with SINR threshold value SINR
th-1.Terminal only has the correct demodulated received signal of correct demodulated reference signal ability, terminal to the receiving ability of signal within a value range, terminal carrys out the intensity of gauge signal, if the span of reference signal is lower than certain value, then RSRP by reception, demodulated reference signal
th-1signal quality has obvious reduction.The embodiment of the present invention ensures RSRP by default RSRP threshold value
th-1signal quality.Terminal needs under lower interference signal receiving, and the ratio of SINR gauge signal and interference noise, only has ratio under lower scope, and terminal efficient solution could recall signal.The embodiment of the present invention, by increasing SINR value, reflects network quality better.
Step 2: whether the RSRP actual value of the main plot C1 signal that terminal judges receives and SINR actual value be respectively higher than the RSRP threshold value RSRP of main plot C1
th-1with SINR threshold value SINR
th-1, if so, then perform step 3, otherwise, then perform step 4.
Step 3: C1 base station, main plot independence dispatch terminal business.
Step 4: whether terminal judges main plot C1 has adjacent area C2, if there is adjacent area, judges that further whether the RSRP actual value of adjacent area C2 signal and SINR actual value are respectively higher than the RSRP threshold value RSRP of adjacent area C2
th-2with SINR threshold value SINR
th-2, if so, then plan collaborative covering indication information and collaborative covering request are sent to C1 base station, main plot, are determined whether to carry out collaborative covering by C1 base station, main plot, that is, satisfied assistance condition is determined whether, as no by C1 base station, main plot, then perform step 5, in this way, then perform step 6.In this step, by terminal to report adjacent area cell id, adjacent area RSRP and adjacent area SINR information, can reduce and report content and minimizing to take interface-free resources.
Step 5: terminal refusal is collaborative covers request.That is, if the RSRP actual value of adjacent area C2 signal is lower than the RSRP threshold value RSRP of adjacent area C2
th-2, and the SINR actual value of adjacent area C2 signal is lower than the SINR threshold value SINR of adjacent area C2
th-2, then reply terminal by C1 base station, main plot and refuse collaborative covering request.
Step 6: plan collaborative covering indication information is sent to C2 base station, adjacent area by C1 base station, main plot.
Step 7: C2 base station, adjacent area and C1 base station, main plot are carried out collaborative covering and consulted.
Particularly, C2 base station in adjacent area is undertaken working in coordination with to cover consulting by X2 interface and C1 base station, main plot.The antenna port number that C1 base station, main plot uses according to the RSRP type of service of user type, type of service and adjacent area C2 base station negotiate utilized bandwidth, sending time slots, main plot C1 and adjacent area C2 and terminal traffic.
In the present embodiment, utilized bandwidth is determined according to terminal traffic and base station, main plot and neighbor base station busy degree.The bandwidth that distributing terminals takies is carried out according to terminal traffic type, received signal quality RSRP and station spare band resource in base station.Utilized bandwidth adopts continuous bandwidth or discontinuous bandwidth.Utilized bandwidth can only the tape tolerance makes, and no longer divides main bandwidth of operation and the special or preferential utilized bandwidth of collaborative covering to whole bandwidth of operation.
In the present embodiment, sending time slots can adopt one of fixing time slot or on-fixed time slot two kinds of modes.Fig. 7 is main plot and adjacent area dividing frequency condition diagram, wherein fix the main plot under time slot and the fixed-bandwidth method of salary distribution and adjacent area dividing frequency situation shown in Fig. 6, and main plot under on-fixed time slot and the fixed-bandwidth method of salary distribution and adjacent area dividing frequency situation.
In the present embodiment, RSRP type of service distributes according to terminal feedback ability rating and antenna port number, the RSRP actual value of the other side is mutually sent to terminal as data by C1 base station, main plot and C2 base station, adjacent area in utilized bandwidth, as Figure 4-Figure 6, the single port antenna after Fig. 4-Fig. 6 is respectively main plot, adjacent area and negotiation and dual-port antenna noise take figure.According to the difference of antenna port type, RSRP adopts different mapping modes in time slot mapping process.Such as, when antenna port number is 1, main plot C1 adopts single port antenna mapping mode as shown in Figure 4; When antenna port number is 2, main plot C1 adopts dual-port antenna mapping mode as shown in Figure 4; When antenna port number is 1, adjacent area C2 adopts single port antenna mapping mode as shown in Figure 5; When antenna port number is 2, adjacent area C2 adopts dual-port antenna mapping mode as shown in Figure 5; When antenna port number is 1, after consulting, adopt single port antenna mapping mode as shown in Figure 6; When antenna port number is 2, adopt as Fig. 6 after consulting. shown dual-port antenna mapping mode.It is noted that the RSRP of the embodiment of the present invention only uses when single port antenna and two-port antenna.
Step 8: negotiation result is notified EPC by C1 base station, main plot.
Step 9:EPC copies the terminal traffic data received, and the data copied is sent to respectively C1 base station, main plot and C2 base station, adjacent area.Particularly, EPC to send payload data bag copy, by send packet destination address respectively assignment be C1 base station, main plot and adjacent area C2 base station address.Propose to be copied initial data by EPC according to the method for the embodiment of the present invention, and send to main plot and adjacent area simultaneously, decrease the time delay that main plot forwards, simultaneously because base station, main plot and neighbor base station all have spatial cache, the content sent by EPC is first stored in buffer memory, until when the time slot that two base stations are coordinated arrives, terminal data is sent at identical time slot, preferably resolves the asynchronous problem that propagation delay time between EPC to two base station causes simultaneously.
Step 10: the identical data received from EPC, according to the negotiate content in step 7, is being sent to terminal by C1 base station, main plot and C2 base station, adjacent area mutually in the same time.
Step 11: the C1 base station, main plot that end-on receives and the information that C2 base station, adjacent area sends carry out demodulation by MIMO method.If due to not identical for the identical data incoming terminal time, terminal cannot reconcile signal.Therefore in the present embodiment, terminal processes the delay problem receiving identical data in the following manner.If the identical data time delay that the C1 base station, main plot received and C2 base station, adjacent area send is greater than t
1, then demodulation is carried out to the data first received, by after the data that receive abandon; If the identical data time delay that the C1 base station, main plot received and C2 base station, adjacent area send is less than t
1, then two base stations are sent data and carry out joint demodulation.Further, if the identical data time delay that the C1 base station, main plot received and C2 base station, adjacent area send is greater than t continuously
1quantity exceed preset value n
1, by n
1the average time of individual time delay feeds back to C1 base station, main plot, is sent the time of identical data by C1 base station, main plot and the adjustment of adjacent area C2 base station negotiate.
Step 12: when the RSRP actual value degree of the adjacent area C2 signal of terminal reception is higher than preset value RSRP
3, then carry out collaborative covering by C2 base station, terminal notification adjacent area and stop asking.
Step 13: C2 base station, adjacent area will be worked in coordination with to cover and be stopped request notice EPC, EPC termination data Replica, and the terminal traffic data of receipt of subsequent are sent to neighbor base station.Particularly, the destination address assignment of follow-up transmission packet is adjacent area C2 base station address by EPC.
In one embodiment, step 12 also comprises the step that main plot switches.Specifically comprise the following steps: when the RSRP actual value of the main plot C1 signal of terminal reception is lower than the first preset value RSRP
1, and when the RSRP actual value of the adjacent area C2 signal of terminal reception is higher than the second preset value RSRP
2, then main plot C1 base station and adjacent area C2 base station negotiate terminal send data receiver and switch; C1 base station, main plot notification terminal carries out data and sends handover operation, to complete the switching of main plot, as shown in Figure 3.
For further illustrating the present invention, under describing four kinds of situations below in conjunction with accompanying drawing 8-11, terminal receives the relation of sector, Terminal Service community and collaborative coverage cell.In figures 8-11, place, sector 1 circle represents main plot, and place, sector 2 circle represents adjacent area, and place, sector 3 circle represents the second adjacent area.
Be illustrated in figure 8 when terminal receives RSRP and SINR of sector 1 respectively higher than threshold value RSRP
th-1and SINR
th-1time, then sector 1 is Terminal Service community, is now without coordinating coverage condition.
Be illustrated in figure 9 when terminal receives RSRP and SINR of sector 1 respectively lower than threshold value RSRP
th-1and SINR
th-1time, sector 1 is Terminal Service community, and terminal chooses the second adjacent area for collaborative coverage cell, and namely sector 2 is collaborative coverage cell.
As shown in Figure 10 for receiving the RSRP of sector 1 lower than RSRP when terminal
1and the RSRP of reception sector 2 is higher than RSRP
2, then terminal completes main plot handoff procedure, and sector 2 is Terminal Service community, and sector 1 is collaborative coverage cell.
As shown in figure 11 for receiving the RSRP of sector 1 lower than RSRP when terminal
3time, stop collaborative overlapping operation, sector 2 is Terminal Service community, is now without coordinating coverage condition.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. an adjacent sectors data harmonization sending method, is characterized in that, comprising:
Step 1: the RSRP threshold value RSRP presetting main plot
th-1with SINR threshold value SINR
th-1;
Step 2: whether the RSRP actual value of the described main plot signal that terminal judges receives and SINR actual value be respectively higher than the RSRP threshold value RSRP of described main plot
th-1with SINR threshold value SINR
th-1, if so, then perform step 3, otherwise, then perform step 4;
Step 3: base station, main plot independence dispatch terminal business;
Step 4: described in described terminal judges, whether main plot has adjacent area, if there is adjacent area, judges that further whether the RSRP actual value of the neighboring area signal of reception and SINR actual value are respectively higher than the RSRP threshold value RSRP of adjacent area
th-2with SINR threshold value SINR
th-2, if so, then plan collaborative covering indication information and collaborative covering request are sent to base station, described main plot, are determined whether to carry out collaborative covering by base station, described main plot, as no, then perform step 5, in this way, then perform step 6;
Step 5: the described collaborative covering request of described terminal refusal;
Step 6: described plan collaborative covering indication information is sent to described neighbor base station by base station, described main plot;
Step 7: described neighbor base station and base station, described main plot are carried out collaborative covering and consulted;
Step 8: negotiation result is notified EPC by base station, described main plot;
Step 9: described EPC copies the terminal traffic data received, and the data copied are sent to base station, described main plot and described neighbor base station respectively;
Step 10: the identical data received from described EPC, according to the negotiate content in step 7, is being sent to described terminal by base station, described main plot and described neighbor base station mutually in the same time;
Step 11: the base station, described main plot that described end-on receives and the described identical data that described neighbor base station sends carry out demodulation by MIMO method;
Step 12: the RSRP actual value of the described neighboring area signal received when described terminal is higher than the 3rd preset value RSRP
3, then carry out collaborative covering by neighbor base station described in described terminal notification and stop asking;
Step 13: described collaborative covering termination request is notified described EPC by described neighbor base station, described EPC stops data Replica, and the terminal traffic data of receipt of subsequent are sent to described neighbor base station.
2. adjacent sectors according to claim 1 data harmonization sending method, is characterized in that, in step 7, described neighbor base station carries out collaborative covering by X2 interface and base station, described main plot to be consulted.
3. adjacent sectors according to claim 2 data harmonization sending method, it is characterized in that, in step 7, the antenna port number that utilized bandwidth, sending time slots, the RSRP type of service of described main plot and described adjacent area and terminal traffic use is consulted according to user type, type of service and described neighbor base station in base station, described main plot.
4. adjacent sectors according to claim 3 data harmonization sending method, is characterized in that, described utilized bandwidth is determined according to described terminal traffic and base station, described main plot and neighbor base station busy degree.
5. adjacent sectors according to claim 4 data harmonization sending method, is characterized in that, described utilized bandwidth adopts continuous bandwidth or discontinuous bandwidth.
6. adjacent sectors according to claim 3 data harmonization sending method, is characterized in that, described sending time slots adopts fixing time slot or on-fixed time slot.
7. adjacent sectors according to claim 3 data harmonization sending method, it is characterized in that, described RSRP type of service distributes according to terminal feedback ability rating and described antenna port number, and the RSRP actual value of the other side is mutually sent to terminal by base station, described main plot and described neighbor base station in described utilized bandwidth.
8. adjacent sectors according to claim 1 data harmonization sending method, is characterized in that, in a step 11, the base station, described main plot that described end-on receives and the described identical data that described neighbor base station sends carry out demodulation by MIMO method, comprising:
If the identical data time delay that the base station, described main plot received and described neighbor base station send is greater than t
1, then demodulation is carried out to the data first received, by after the data that receive abandon;
If the identical data time delay that the base station, described main plot received and described neighbor base station send is less than t
1, then data are sent to two base stations and carry out joint demodulation.
9. adjacent sectors according to claim 8 data harmonization sending method, is characterized in that, in a step 11, if the identical data time delay that the base station, described main plot received and described neighbor base station send is greater than t continuously
1quantity exceed preset value n
1, by n
1the average time of individual time delay feeds back to base station, described main plot, consults by base station, described main plot and described neighbor base station the time that adjustment sends identical data.
10. adjacent sectors according to claim 1 data harmonization sending method, it is characterized in that, described step 12 also comprises:
When the RSRP actual value of the described main plot signal that described terminal receives is lower than the first preset value RSRP
1, and when the RSRP actual value of the described neighboring area signal of described terminal reception is higher than the second preset value RSRP
2, then the reception that base station, described main plot and described neighbor base station negotiation terminal send data switches;
Base station, described main plot notifies that described terminal is carried out data and sent handover operation, to complete the switching of main plot.
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| CN103067964A (en) * | 2012-12-25 | 2013-04-24 | 上海无线通信研究中心 | Coordination method and system for predicting interference |
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