CN104270784A - Method, system and base station for determining coordinated cells for uplink coordinated multi-point transmission - Google Patents
Method, system and base station for determining coordinated cells for uplink coordinated multi-point transmission Download PDFInfo
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- CN104270784A CN104270784A CN201410545755.XA CN201410545755A CN104270784A CN 104270784 A CN104270784 A CN 104270784A CN 201410545755 A CN201410545755 A CN 201410545755A CN 104270784 A CN104270784 A CN 104270784A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
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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
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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Abstract
The invention discloses a method, system and base station for determining coordinated cells for uplink coordinated multi-point transmission. The method comprises the steps of acquiring candidate cells participating in uplink CoMP according to the position of UE, acquiring interference background noise rising IOT information of the candidate cells participating in uplink CoMP, and selecting candidate cells, with a small amount of interference background noise rising IOT information, participating in uplink CoMP as the coordinated cells. According to the method, system and base station, by additionally judging the uplink interference IOT information of the cells, the appropriate coordinated cells are screened out. The system does not depend on information of equipment of a core network, additional protocol procedures or message processing is not needed, and therefore the system can adapt to the change of environments more stably, and the KPI of the system can be effectively increased.
Description
Technical field
The present invention relates to a kind of up CoMP cooperation cell system of selection, system and base station, belong to communication technical field.
Background technology
Coordinated multipoint transmission technology (CoMP:Coordinated Multiple Points Transmission/Reception) refers to multiple transfer points that geographical position is separated, collaborative participation is that the data (PDSCH) of a terminal are transmitted or combine the data (PUSCH) of a reception terminal transmission, thus improves the data transfer rate of user.CoMP is mainly used in the co-channel interference, the lifting community marginal user performance that reduce minizone.As shown in Figure 1, whether belong to an eNB according to the community of CoMP participating process and divide into Intra-eNB (switching in base station) and Inter-eNB CoMP (switching between base station) two kinds of modes.The business datum that Intra-eNB only needs the mutual CoMP process in each minizone of this inside of base station to be correlated with and control information, be comparatively easy to realize; Inter-eNB CoMP then needs these information mutual between base station, has high requirements to X2 interface bandwidth, and time delay is also larger than Intra-eNB, and the CoMP scheme discussed at present is all Intra-eNB mode substantially.
In Intra-eNB mode, comprise descending CoMP and up CoMP two kinds of implementations.Up CoMP refers to that up PUSCH's (data) combines reception, and particularly, the Serving cell of terminal and cooperation cell be the upward signal that sends of receiving terminal simultaneously, and is combined by the mode cooperated and make decisions.In the prior art, ACK (confirmation)/NACK (not confirming) information that network issues terminal only sends from the Serving cell of terminal, and therefore final decision should be complete in Serving cell.Other cooperation cell are responsible for the relevant information of the terminal data received to pass to Serving cell, carry out the merging treatment that this user uplink receives data in Serving cell.As shown in Figure 2, but the merging treatment bit level merging that user uplink receives data also can is-symbol level merge, and can obtain certain uplink receiving diversity gain, thus promote the receptivity of edge customer by combining to receive.
When using CoMP, because Cell Center User signal quality is better, the limited space of performance boost, adopts associating reception, will take the uplink time/frequency source of multiple community on the contrary, be unfavorable for the lifting of average spectral efficiency (ase).Therefore use CoMP to combine to receive and only support to combine reception to what namely carry out uplink receiving data with neighbor cell edge customer in 3 sectors, station within the scope of cooperation.The edge customer participating in associating reception can be determined according to RSRP (Reference Signal Receiving Power, the Reference Signal Received Power) difference (such as A3 event measurement report) of the local area measured and adjacent area.Owing to assisting the acquisition of community to be judged by position measurement, the position measurement of terminal only can the channel strength of feeding back downlink, cannot effectively react up channel situation.If the interference of up channel is comparatively strong, so up CoMP cannot obtain gain.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of determine uplink coordinated multicast communication cooperation cell method, system and base station, by increasing, the IOT information of community being judged, filtering out suitable assistance community.
For realizing above-mentioned goal of the invention, provide a kind of determine uplink coordinated multicast communication cooperation cell method, system and base station.
On the one hand, the invention provides a kind of method determining uplink coordinated multicast communication CoMP cooperation cell, it is characterized in that, described method comprises:
Up CoMP cell is participated in by the position acquisition candidate of UE;
Obtain candidate and participate in lifting IOT information of making an uproar at the bottom of the interference of up CoMP cell;
Choose the interference end less candidate of lifting IOT information that makes an uproar and participate in up CoMP cell as cooperation cell.
Wherein more preferably, the position of described UE, described candidate are participated in up CoMP transmission community and are determined by measurement report.
Wherein more preferably, lifting IOT information of making an uproar at the bottom of described interference is that the lifting IOT that makes an uproar at the bottom of the interference of the physical resource unit utilizing the measurement of base station physical layer PL cycle T to report determines.
Wherein more preferably, described acquisition candidate participate in making an uproar at the bottom of the interference of the up CoMP cell step of lifting IOT information specifically comprises:
In base station equipment, physical layer PL to make an uproar end lifting IOT value according to predetermined period T or the interference of measuring whole sub-frame of uplink physical resource unit PRB randomly;
End lifting IOT value of the interference of whole sub-frame of uplink physical resource unit PRB being made an uproar reports to HL.
Wherein more preferably, the make an uproar step of end lifting IOT value of the interference that described physical layer PL measures whole sub-frame of uplink physical resource unit PRB specifically comprises:
The interference of physical layer PL all regular upstream subframes 100 physical resource unit PRB take turns stream calculation present sub-frame proportioning from subframe 2 under is made an uproar end lifting IOT value, and every 10ms calculates a subframe;
The result of 2 all antennas of frequency pilot sign averaged, the interference as present sub-frame is made an uproar end lifting IOT result.
Wherein more preferably, choose the interference end less candidate of lifting IOT information that makes an uproar described in participate in up CoMP cell and specifically comprise as the step of cooperation cell:
Candidate's lifting IOT value that participates in making an uproar at the bottom of the interference of up CoMP cell compares with predetermined threshold value;
The quantity that the candidate that lifting IOT value is less than predetermined threshold value if make an uproar in the interference end participates in up CoMP cell is zero, then return by the PUSCH situation of Serving cell replacing UE and reselect cooperation cell or exit Combined Treatment JR state;
The quantity that the candidate that lifting IOT value is less than predetermined threshold value if make an uproar in the interference end participates in up CoMP cell is more than or equal to 1, then select the interference end relatively little candidate of lifting IOT value that makes an uproar to participate in up CoMP cell as assisting community.
Wherein more preferably, describedly change the PUSCH situation of UE by Serving cell and return the step reselecting cooperation cell or exit Combined Treatment JR state and comprise:
Check whether Serving cell can change the PUSCH position of UE;
If the PUSCH position of UE can be changed in Serving cell, then return and continue to compare candidate and participate in the IOT value of up CoMP cell and predetermined threshold value and reselect and assist community;
If the PUSCH position of UE can not be changed in Serving cell, then exit Combined Treatment JR state.
On the other hand, the invention provides a kind of system determining uplink coordinated multicast communication CoMP cooperation cell, comprising:
For obtaining the location information acquiring unit of UE position;
For obtaining according to the positional information of UE the cell information acquiring unit that candidate participates in up CoMP cell;
User obtains candidate and to participate in making an uproar at the bottom of the interference of up CoMP cell the IOT information acquisition unit of lifting IOT information;
Comparing unit, for comparing lifting IOT value of making an uproar at the bottom of the interference of the up CoMP cell of participation with predetermined threshold value;
Unit is chosen in cooperation cell, participates in up CoMP cell as cooperation cell for choosing the interference end less candidate of lifting IOT information that makes an uproar according to the comparative result of comparing unit.
Wherein more preferably, the position of described UE, described candidate are participated in up CoMP transmission community and are determined by measurement report.
Wherein more preferably, described candidate participate in making an uproar at the bottom of the interference of the up CoMP cell mode of lifting IOT information comprises:
In base station equipment, physical layer PL to make an uproar end lifting IOT value according to predetermined period T or the interference of measuring whole sub-frame of uplink physical resource unit PRB randomly;
End lifting IOT value of the interference of whole sub-frame of uplink physical resource unit PRB being made an uproar reports to HL.
Wherein more preferably, the make an uproar mode of end lifting IOT value of the interference that described physical layer PL measures whole sub-frame of uplink physical resource unit PRB comprises:
The interference of physical layer PL all regular upstream subframes 100 physical resource unit PRB take turns stream calculation present sub-frame proportioning from subframe 2 under is made an uproar end lifting IOT value, and every 10ms calculates a subframe;
The result of 2 all antennas of frequency pilot sign averaged, the interference as present sub-frame is made an uproar end lifting IOT result.
Wherein more preferably, the described comparative result according to comparing unit is chosen the interference end less candidate of lifting IOT information that makes an uproar and is participated in up CoMP cell and comprise as the mode of cooperation cell:
The quantity that the candidate that lifting IOT value is less than predetermined threshold value if make an uproar in the interference end participates in up CoMP cell is zero, then return by the PUSCH situation of Serving cell replacing UE and reselect cooperation cell or exit Combined Treatment JR state;
The quantity that the candidate that lifting IOT value is less than predetermined threshold value if make an uproar in the interference end participates in up CoMP cell is more than or equal to 1, then select the interference end relatively little candidate of lifting IOT value that makes an uproar to participate in up CoMP cell as assisting community.
On the other hand, the present invention also provides a kind of base station determining uplink coordinated multicast communication CoMP cooperation cell, applies above-mentioned method.
On the other hand, the present invention also provides a kind of base station determining uplink coordinated multicast communication CoMP cooperation cell, applies above-mentioned system.
Provided by the invention determine uplink coordinated multicast communication cooperation cell method, system and base station, by increasing, the uplink interference IOT information of community being judged, filtering out suitable assistance community.Do not rely on the information of the equipment of core net, do not needing additionally to increase protocol procedures or Message Processing, make the change conformed that system can be more stable, ensure effective elevator system KPI.
Accompanying drawing explanation
Fig. 1 is prior art multicast system structural representation;
Fig. 2 is that in prior art, data are transmitted to Serving cell schematic diagram in cooperation cell;
Fig. 3 is the method block diagram that the present invention determines uplink coordinated multiple spot CoMP transmission cooperation cell;
Fig. 4 is that the present invention obtains UE position schematic flow sheet;
Fig. 5 the present invention determines the method flow schematic diagram of uplink coordinated multiple spot CoMP transmission cooperation cell;
Fig. 6 is that the real figure of the present invention determines uplink coordinated multiple spot CoMP transmission cooperation cell system configuration schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Fig. 3, Fig. 5, the invention provides a kind of method determining uplink coordinated multiple spot CoMP transmission cooperation cell, the method comprises: described method comprises: participate in up CoMP cell by the position acquisition candidate of UE; Obtain candidate and participate in lifting IOT information of making an uproar at the bottom of the interference of up CoMP cell; Choose the interference end less candidate of lifting IOT information that makes an uproar and participate in up CoMP cell as cooperation cell.This is determined that the method for uplink coordinated multiple spot CoMP transmission cooperation cell launches detailed description below.
First, the step participating in up CoMP transmission community by the position acquisition candidate of UE is introduced.
As shown in Figure 4, if the base station at UE place opens CoMP function, then base station needs UE configuration UE location measurement information when UE accesses, and UE reports UE measurement report to base station in real time according to the change of wireless environment.Particularly, after UE success access base station, judge whether the up COMP in base station opens, if do not opened, terminates.If open COMP, then base station requests UE configuration UE location measurement information.During the change in location of UE, UE according to the variation monitoring positional information of wireless environment, and in real time to base station reporting measurement reports.Not only comprise the positional information of UE in the measurement report that UE reports to base station, also carry contiguous cell information.After UE report measurement information, according to the UE positional information in measurement report, base station determines whether UE arrives edge, Serving cell.If UE reaches edge, Serving cell, according to the neighboring BS information that measurement report carries, determine that contiguous community participates in up CoMP transmission community as getting candidate.
Secondly, introduce and obtain candidate and to participate in making an uproar at the bottom of the interference of up CoMP cell the step of lifting IOT information.
In one embodiment of the invention, after UE reporting measurement reports, the neighboring BS information that measurement report carries is checked in base station, then checks the uplink interference information of corresponding adjacent area.Base station is according to IOT interference over thermal, makes an uproar lifting in the interference end) situation of information selects suitable community as cooperation cell.
After community is set up, the interference of each physical resource unit PRB that base station obtains sub-frame of uplink is made an uproar end lifting IOT value.Wherein, the end lifting IOT that makes an uproar is disturbed to be the index of reacting channel disturbance comprehensive condition.Such as, noiseless in current up channel, for-99dBm, when the end of making an uproar after bursty interference in this channel is raised to-60dBm, then IOT value is 39dB (=-60dBm-(-99dBm)) at its end of making an uproar.Particularly, PL (Physical Layer in base station equipment, physical layer) can according to predetermined period (T, can set based on experience value) or the interference of measuring whole sub-frame of uplink physical resource unit PRB randomly to make an uproar end lifting IOT value, then end lifting IOT value of the interference of this whole sub-frame of uplink physical resource unit PRB being made an uproar reports to HL (High Layer, high-rise).Below interference end lifting IOT value obtain manner of making an uproar specifically is described in detail.
For conventional subframe, the interference of frequency pilot sign that what PL calculated is is made an uproar end lifting IOT value, take turns stream calculation present sub-frame proportioning from subframe 2 under, the interference of all regular upstream subframes 100 physical resource unit PRB is made an uproar end lifting IOT value, and every 10ms calculates a subframe.The result of 2 all antennas of frequency pilot sign averaged, the interference as present sub-frame is made an uproar end lifting IOT result.
Intra-eNB CoMP obtains adjacent cell IOT information in base station, by reading the IOT information that PL reports in real time.
Inter-eNB CoMP obtains adjacent cell IOT information between base station, needs the load info message increasing X2 to obtain.Concrete obtain manner please refer to LTE protocol 3GPP TS36.423X2 application protocol.
Finally, introduce and choose the interference end less candidate of lifting IOT information that makes an uproar and participate in the step of up CoMP cell as cooperation cell.
As shown in Figure 5, base station gets candidate and participates in making an uproar at the bottom of the interference of up CoMP cell after lifting IOT information and participate according to candidate lifting IOT value of making an uproar at the bottom of the interference of up CoMP cell, compare with predetermined threshold value, select the interference end candidate that lifting IOT value is less than predetermined threshold value that makes an uproar and participate in up CoMP cell, the less community of lifting IOT value of being made an uproar at the interference end is as assisting community.Illustrate below.
If the candidate that lifting IOT value of making an uproar at the bottom of the interference that base station obtains is not less than predetermined threshold value participates in up CoMP cell (lifting IOT value of making an uproar at the bottom of the interference of namely Serving cell is larger), then check whether Serving cell can change the PUSCH position (mainly looking into the adjacent cell, PUSCH position seeing if there is and can change UE) of UE.If the PUSCH position (having the adjacent cell, PUSCH position can changing UE) of UE can be changed in Serving cell, then return and continue to compare IOT value and the predetermined threshold value that candidate participates in up CoMP cell, reselect and assist community; If the PUSCH position (can not change the adjacent cell, PUSCH position of UE) of UE can not be changed in Serving cell, then exit Combined Treatment JR state.
If the candidate that lifting IOT value of making an uproar at the bottom of the interference that base station obtains is less than predetermined threshold value participates in up CoMP cell quantity and is more than or equal to 1, then the interference end relatively little candidate of lifting IOT value that makes an uproar is selected to participate in up CoMP cell as assisting community.Configuration cooperation cell information enters Combined Treatment JR state.
In one embodiment of the invention, determine that the method for uplink coordinated multicast communication CoMP cooperation cell also comprises the step adjusted cooperation school district when not arriving edge, Serving cell to UE, specifically comprise: UE does not arrive edge, Serving cell, then judge whether current service cell opened Combined Treatment JR state; If opened Combined Treatment JR state, then exited Combined Treatment JR state; If do not open Combined Treatment JR state, then returned.
For embodying the superiority determining the method for uplink coordinated multicast communication cooperation cell provided by the invention further, the present invention also provides a kind of and applies the above-mentioned system determining the method for uplink coordinated multicast communication cooperation cell, as shown in Figure 6, this system comprises: for obtaining the location information acquiring unit of UE position; For obtaining according to the positional information of UE the cell information acquiring unit that candidate participates in up CoMP cell; Participate in for obtaining candidate making an uproar at the bottom of the interference of up CoMP cell the IOT information acquisition unit of lifting IOT information; Comparing unit, for comparing lifting IOT value of making an uproar at the bottom of the interference of the up CoMP cell of participation with predetermined threshold value; Unit is chosen in cooperation cell, participates in up CoMP cell as cooperation cell for choosing the interference end less candidate of lifting IOT information that makes an uproar according to the comparative result of comparing unit.Determine that the system of uplink coordinated multicast communication cooperation cell launches detailed description to provided by the invention below.
Determine in the system of uplink coordinated multicast communication cooperation cell provided by the invention, when information acquisition unit obtains the positional information of UE position, the base station first judging UE place is needed whether to open CoMP function, if the base station at UE place opens CoMP function, then base station needs UE configuration UE location measurement information when UE accesses, and UE reports UE measurement report to base station in real time according to the change of wireless environment.Particularly, after UE success access base station, judge whether the up COMP in base station opens, if do not opened, terminates.If open COMP, then base station requests UE configuration UE location measurement information, UE when change in location, according to the variation monitoring positional information of wireless environment, and in real time to base station reporting measurement reports.Information acquisition unit obtains the positional information of UE to the measurement report that base station reports from UE.Not only comprise the positional information of UE in the measurement report that UE reports to base station, also carry contiguous cell information.After UE report measurement information, according to the UE positional information in measurement report, base station determines whether UE arrives edge, Serving cell.If UE reaches edge, Serving cell, the neighboring BS information that cell information acquiring unit carries according to measurement report, determines that contiguous community participates in up CoMP transmission community as getting candidate.
Determine in the system of uplink coordinated multicast communication cooperation cell provided by the invention, it is as follows that IOT information acquisition unit obtains candidate's participate in making an uproar at the bottom of the interference of up CoMP cell mode of lifting IOT information: in base station equipment, physical layer PL to make an uproar end lifting IOT value according to predetermined period T or the interference of measuring whole sub-frame of uplink physical resource unit PRB randomly; End lifting IOT value of the interference of whole sub-frame of uplink physical resource unit PRB being made an uproar reports to HL.The make an uproar mode of end lifting IOT value of the interference that physical layer PL measures whole sub-frame of uplink physical resource unit PRB comprises: the interference of physical layer PL all regular upstream subframes 100 physical resource unit PRB take turns stream calculation present sub-frame proportioning from subframe 2 under is made an uproar end lifting IOT value, and every 10ms calculates a subframe; The result of 2 all antennas of frequency pilot sign averaged, the interference as present sub-frame is made an uproar end lifting IOT result.
Determine that in the system of uplink coordinated multicast communication cooperation cell, unit is chosen in cooperation cell provided by the invention, choose the interference end less candidate of lifting IOT information that makes an uproar according to the comparative result of comparing unit and participate in up CoMP cell as cooperation cell.Comparing unit, for comparing lifting IOT value of making an uproar at the bottom of the interference of the up CoMP cell of participation with predetermined threshold value; The quantity that the candidate that lifting IOT value is less than predetermined threshold value if make an uproar in the interference end participates in up CoMP cell is zero, then return by the PUSCH situation of Serving cell replacing UE and reselect cooperation cell or exit Combined Treatment JR state; The quantity that the candidate that lifting IOT value is less than predetermined threshold value if make an uproar in the interference end participates in up CoMP cell is more than or equal to 1, then select the interference end relatively little candidate of lifting IOT value that makes an uproar to participate in up CoMP cell as assisting community.
The present invention also provides a kind of base station determining uplink coordinated multicast communication CoMP cooperation cell, and this base station applies is above-mentioned to be determined the method for uplink coordinated multicast communication CoMP cooperation cell or determine the system of uplink coordinated multicast communication CoMP cooperation cell.
In sum, provided by the invention a kind of determine uplink coordinated multicast communication cooperation cell method, system and base station, by increasing, the uplink interference IOT information of community being judged, filtering out suitable assistance community.Do not rely on the information of the equipment of core net, do not needing additionally to increase protocol procedures or Message Processing, make the change conformed that system can be more stable, ensure effective elevator system KPI.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.For device embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Those skilled in the art should understand, the embodiment of the application can be provided as method, system or computer program.Therefore, the application can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the application can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The application describes with reference to according to the flow chart of the method for the embodiment of the present application, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although described the preferred embodiment of the application, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the application's scope.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Above execution mode is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (14)
1. determine a method for uplink coordinated multicast communication CoMP cooperation cell, it is characterized in that, described method comprises:
Up CoMP cell is participated in by the position acquisition candidate of UE;
Obtain candidate and participate in lifting IOT information of making an uproar at the bottom of the interference of up CoMP cell;
Choose the interference end less candidate of lifting IOT information that makes an uproar and participate in up CoMP cell as cooperation cell.
2. the method for claim 1, is characterized in that, the position of described UE, described candidate are participated in up CoMP transmission community and determined by measurement report.
3. the method for claim 1, is characterized in that, lifting IOT information of making an uproar at the bottom of described interference is that the lifting IOT that makes an uproar at the bottom of the interference of the physical resource unit utilizing the measurement of base station physical layer PL cycle T to report determines.
4. the method for claim 1, is characterized in that, described acquisition candidate participate in making an uproar at the bottom of the interference of the up CoMP cell step of lifting IOT information specifically comprises:
In base station equipment, physical layer PL to make an uproar end lifting IOT value according to predetermined period T or the interference of measuring whole sub-frame of uplink physical resource unit PRB randomly;
End lifting IOT value of the interference of whole sub-frame of uplink physical resource unit PRB being made an uproar reports to high-rise HL.
5. method as claimed in claim 4, is characterized in that, the make an uproar step of end lifting IOT value of the interference that described physical layer PL measures whole sub-frame of uplink physical resource unit PRB specifically comprises:
The interference of physical layer PL all regular upstream subframes 100 physical resource unit PRB take turns stream calculation present sub-frame proportioning from subframe 2 under is made an uproar end lifting IOT value, and every 10ms calculates a subframe;
The result of 2 all antennas of frequency pilot sign averaged, the interference as present sub-frame is made an uproar end lifting IOT result.
6. the method for claim 1, is characterized in that, described in choose the interference end less candidate of lifting IOT information that makes an uproar and participate in up CoMP cell and specifically comprise as the step of cooperation cell:
Candidate's lifting IOT value that participates in making an uproar at the bottom of the interference of up CoMP cell compares with predetermined threshold value;
The quantity that the candidate that lifting IOT value is less than predetermined threshold value if make an uproar in the interference end participates in up CoMP cell is zero, then return by the PUSCH situation of Serving cell replacing UE and reselect cooperation cell or exit Combined Treatment JR state;
The quantity that the candidate that lifting IOT value is less than predetermined threshold value if make an uproar in the interference end participates in up CoMP cell is more than or equal to 1, then select the interference end relatively little candidate of lifting IOT value that makes an uproar to participate in up CoMP cell as assisting community.
7. the method for claim 1, is characterized in that, describedly changes the PUSCH situation of UE by Serving cell and returns the step reselecting cooperation cell or exit Combined Treatment JR state and comprise:
Check whether Serving cell can change the PUSCH position of UE;
If the PUSCH position of UE can be changed in Serving cell, then return and continue to compare IOT value and the predetermined threshold value that candidate participates in up CoMP cell, reselect and assist community;
If the PUSCH position of UE can not be changed in Serving cell, then exit Combined Treatment JR state.
8. determine a system for uplink coordinated multicast communication CoMP cooperation cell, it is characterized in that comprising:
For obtaining the location information acquiring unit of UE position;
For obtaining according to the positional information of UE the cell information acquiring unit that candidate participates in up CoMP cell;
User obtains candidate and to participate in making an uproar at the bottom of the interference of up CoMP cell the IOT information acquisition unit of lifting IOT information;
Comparing unit, for comparing lifting IOT value of making an uproar at the bottom of the interference of the up CoMP cell of participation with predetermined threshold value;
Unit is chosen in cooperation cell, participates in up CoMP cell as cooperation cell for choosing the interference end less candidate of lifting IOT information that makes an uproar according to the comparative result of comparing unit.
9. system as claimed in claim 8, it is characterized in that, the position of described UE, described candidate are participated in up CoMP transmission community and are determined by measurement report.
10. system as claimed in claim 8, is characterized in that, described candidate participate in making an uproar at the bottom of the interference of the up CoMP cell mode of lifting IOT information comprises:
In base station equipment, physical layer PL to make an uproar end lifting IOT value according to predetermined period T or the interference of measuring whole sub-frame of uplink physical resource unit PRB randomly;
End lifting IOT value of the interference of whole sub-frame of uplink physical resource unit PRB being made an uproar reports to HL.
11. systems as claimed in claim 10, is characterized in that, the make an uproar mode of end lifting IOT value of the interference that described physical layer PL measures whole sub-frame of uplink physical resource unit PRB comprises:
The interference of physical layer PL all regular upstream subframes 100 physical resource unit PRB take turns stream calculation present sub-frame proportioning from subframe 2 under is made an uproar end lifting IOT value, and every 10ms calculates a subframe;
The result of 2 all antennas of frequency pilot sign averaged, the interference as present sub-frame is made an uproar end lifting IOT result.
12. systems as claimed in claim 8, is characterized in that, the mode of the described comparative result selecting collaboration community according to comparing unit comprises:
The quantity that the candidate that lifting IOT value is less than predetermined threshold value if make an uproar in the interference end participates in up CoMP cell is zero, then return by the PUSCH situation of Serving cell replacing UE and reselect cooperation cell or exit Combined Treatment JR state;
The quantity that the candidate that lifting IOT value is less than predetermined threshold value if make an uproar in the interference end participates in up CoMP cell is more than or equal to 1, then select the interference end relatively little candidate of lifting IOT value that makes an uproar to participate in up CoMP cell as assisting community.
13. 1 kinds of base stations determining uplink coordinated multicast communication CoMP cooperation cell, is characterized in that, application rights requires the method described in 1-7 any one.
14. 1 kinds of base stations determining uplink coordinated multicast communication CoMP cooperation cell, is characterized in that, application rights requires the system described in 8-13 any one.
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