CN103096332A - Method, system and terminal of collaborative multipoint transmission in heterogeneous network - Google Patents
Method, system and terminal of collaborative multipoint transmission in heterogeneous network Download PDFInfo
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- CN103096332A CN103096332A CN2011103476270A CN201110347627A CN103096332A CN 103096332 A CN103096332 A CN 103096332A CN 2011103476270 A CN2011103476270 A CN 2011103476270A CN 201110347627 A CN201110347627 A CN 201110347627A CN 103096332 A CN103096332 A CN 103096332A
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Abstract
The invention discloses a method, a system and a terminal of collaborative multipoint transmission in a heterogeneous network. Macrocell subscriber terminal appoints a macro community to be a collaborative collection through macro station static allocation. Measured communication quality value of a micro service station and the macro station is received by a micro station, wherein the communication quality value is sent by a micro community subscribe terminal. The micro station judges whether the communication quality value meets set interference threshold value of the micro community subscribe terminal or not. If the communication quality value meets the interference threshold value, the micro community subscribe terminal is collocated with a collaborative collection including the micro station and the macro station, the collaborative collection provides communication service for the micro community subscribe terminal. If the communication quality value does not meet the interference threshold, only the micro station provides the communication service for the micro community subscribe terminal. According to the method, the system and the terminal of the collaborative multipoint transmission in the heterogeneous network, communication quality value of adjacent micro communities does not need measuring, achieving complexity of network side of a communication network is reduced, communication network side resource is saved, and collaboration can be utilized to reduce interference between communities.
Description
Technical field
The present invention relates to wireless communication field, particularly method, system and the terminal of collaboration type multicast communication in a kind of heterogeneous network.
Background technology
Along with the development of wireless communication technology, radio communication is also more and more higher to the requirement of capacity and covering, the more and more difficult demand that satisfies growing high power capacity and large covering of the communication network of traditional employing macrocellular networking mode.Therefore, heterogeneous network has appearred.Heterogeneous network is exactly to dispose some lower powered little stations in the coverage of macrocellular network, covers to realize overlapping covering or to replenish, and significantly promotes communication throughput and the communication efficiency of communication network.
The isomerism network structure schematic diagram that Fig. 1 provides for prior art, as shown in the figure, this heterogeneous network comprises three grand stations 100, each grand station 100 has covered a cellular zone, in each cellular zone, also comprise respectively little station, little station can be millimicro cellular basestation (Femto) 101, relaying (Relay) 102 and (Pico) 103 that slightly stand.Wherein, Femto is generally Home eNodeB.
With the node of lower powered open access, all be called little station such as millimicro cellular basestation, relaying and slight station here.
Although adopt heterogeneous network shown in Figure 1 to strengthen the communication throughput of communication network by the band resource of recycling communication network in the same space, because little station of introducing with covering and the interference problem between grand station become the key factor of the communication quality that suppresses communication network.The interference profile situation that has in heterogeneous network is: little station transmitting power is smaller, is approximately 1 watt, when providing communication service for the Microcell user terminal of administering, to the Communication Jamming of macrocell user terminal a little less than; The transmitting power at grand station is larger, is approximately 40 watts, and is more intense to the Communication Jamming of Microcell user terminal when providing communication service for the macrocell user terminal of administering, particularly to the Microcell user terminal at Microcell edge.
As shown in Figure 2, Fig. 2 has with little station of overlay area and the interference schematic diagram between grand station in the heterogeneous network of prior art.In this heterogeneous network, comprise grand station 201 and little station 202, the Microcell that little station 202 is administered is in the macrocell that grand station 201 is administered.In this heterogeneous network, also comprise Microcell user terminal 203 and macrocell user terminal 204, communicate for accessing respectively little station 202 and accessing grand station 201.Little station 202 is because transmitting power is smaller, and is smaller to the interference of macrocell user terminal 204, and grand station 201 is because transmitting power is larger, and is larger to the interference ratio of Microcell user terminal 203.
In order to overcome having with little station of overlay area and the interference problem between grand station in heterogeneous network, can adopt the solution of the enhancing presence of intercell interference deletion (elClC) of time division multiplexing (TDM) mode, namely: for fear of the interference of grand station to the Microcell user terminal, macrocell and communicating by letter of Microcell are staggered in time, in the moment of Microcell communication, macrocell does not communicate.Although adopt this mode can solve having with little station of overlay area and the interference problem between grand station in heterogeneous network, but wasted the running time-frequency resource of a large amount of communication networks.
Therefore, adopt collaboration type multiple spot (CoMP, Coordinated Multiple Point) method both to overcome having with little station of overlay area and the interference problem between grand station in heterogeneous network, can not waste again the running time-frequency resource of communication network.The method of collaboration type multiple spot is: the communication service of Microcell user terminal or macrocell user terminal is completed by little station of administering and the cooperation of grand station simultaneously, can adopt static state or dynamically arrange when arranging, like this, just grand station can be converted to useful signal of communication to the interfere with communications signal of Microcell user terminal, reduce and disturb, the signal of communication that improves the Microcell user terminal receives Signal to Interference plus Noise Ratio, significantly improves the communication throughput of communication network.
Adopt the collaboration type multipoint iterations in overcoming heterogeneous network have with little station of overlay area and the interference problem between grand station the time, usually to all user terminals, comprise that macrocell user terminal and Microcell user terminal all unify to provide the collaboration type multipoint communication service, this just needs to consult to carry out between grand station in the network side of communication network and little station, increase implementation complexity, and taken the network side ample resources of communication network.
Summary of the invention
In view of this, the invention provides the method for collaboration type multicast communication in a kind of heterogeneous network, the method can either reduce the network side implementation complexity of communication network, saves the network side resource of communication network, reduces to produce when providing communication service for the Microcell user terminal again and disturbs.
The present invention also provides the system of collaboration type multicast communication in a kind of heterogeneous network, this system can reduce the network side implementation complexity of communication network, save the network side resource of communication network, reduce to produce when providing communication service for the Microcell user terminal again and disturb.
The present invention also provides the device of cooperative multipoint transmission in a kind of heterogeneous network, and this device can reduce the network side implementation complexity of communication network, saves the network side resource of communication network, reduces to produce when providing communication service for the Microcell user terminal again and disturbs.
For achieving the above object, technical scheme of the invention process specifically is achieved in that
A kind of method of collaboration type multicast communication in heterogeneous network, little station arrange the interference threshold value of Microcell user terminal, and the method also comprises:
After little station received the access request of user terminal transmission, for this user terminal accesses this little station, described this user terminal was the Microcell user terminal, the little station of service that described little station is the Microcell user terminal;
The little station of service that the Microcell user terminal that little station reception Microcell user terminal sends is measured and the communication quality value at grand station;
Little station judges whether this communication quality value satisfies the interference threshold value of set Microcell user terminal, if, comprise the cooperation set at little station and grand station for this Microcell user terminal configuration, be combined into this Microcell user terminal by the cooperation that configures communication service is provided; If not, little station independently provides communication service for this Microcell user terminal.
The system of collaboration type multicast communication in a kind of heterogeneous network comprises Microcell user terminal, macrocell user terminal, little station and grand station, wherein,
The Microcell user terminal is used for measuring the communication quality value of serving little station and grand station, sends to little station, accepts communication service;
Little station, serving BS for the Microcell user terminal, be used for determining whether this communication quality value that receives satisfies the interference threshold value of set Microcell user terminal, if, carry out information interaction with grand station, comprise the cooperation set at little station and grand station for this Microcell user terminal configuration, provide communication service for the community user terminal under the coordination in the cooperation set; Otherwise, independently provide communication service for this Microcell user terminal;
Grand station is for the set of macrocell user terminal static configuration cooperation macrocell provides communication service; Be used for carrying out information interaction with little station, be configured to the cooperation set that the Microcell user terminal provides communication service, provide communication service for the Microcell user terminal under the coordination in the cooperation set;
The macrocell user terminal is used for sending access request, received communication service to grand station.
Little station of collaboration type multicast communication in a kind of heterogeneous network comprises: receiver module, judge module and Executive Module, wherein,
Receiver module is used for receiving the communication quality value that the Microcell user terminal sends;
Judge module is used for definite little station of service that receives and the communication quality value at grand station and whether satisfies the interference threshold value of set Microcell user terminal, and will determine that result sends to Executive Module;
Executive Module is used for according to determining the result execution: if satisfy, carry out information interaction with grand station, comprise the cooperation set at little station and grand station for this Microcell user terminal configuration, provide communication service for the community user terminal under the coordination in the cooperation set; Otherwise, provide communication service for this Microcell user terminal.
The Microcell user terminal of collaboration type multicast communication in a kind of heterogeneous network comprises measurement module, reports judge module, reporting module and communication module, wherein,
Measurement module is used for measuring the communication quality value of serving little station and grand station, sends to report judge module;
Report judge module, be used for being provided with and report threshold value, when satisfying when reporting threshold value, sends the communication quality value of serving little station and grand station by reporting module; If do not satisfy, access little station by reporting module;
Communication module is used for the communication service that received communication network of network side provides.
Can be found out by such scheme, the present invention is when adopting the collaboration type multipoint system that communication service is provided for user terminal, be not that unification provides for all user terminals as prior art, but provide respectively for macrocell user terminal and Microcell user terminal, namely first confirm the classification of user terminal, just provide communication service for the Microcell user terminal adopts the coordinate multipoint mode, and the macrocell terminal use only needs grand station static configuration multipoint cooperative mode to provide communication service to get final product.further, when adopting the coordinate multipoint mode that communication service is provided for the Microcell user terminal, the Microcell user terminal only reports the communication quality value at the little station of its measured service and grand station to little station, the little station of service that this little station is the Microcell user terminal, whether its this measured communication quality information that is judged the Microcell user terminal to send up by little station satisfies the disturbed condition that sets, the disturbed condition of this setting is the prerequisite setting according to grand station and the communication service of serving the interference effect Microcell user terminal between little station, if, for adopting the collaboration type multipoint system, this Microcell user terminal provides communication service, otherwise, directly independently provide communication service for this Microcell user terminal by little station.because the present invention just is the Microcell user terminal, further just for adopting the collaboration type multipoint system, part Microcell user terminal provides communication service, although and other are had interference when accepting communication service, but the Microcell user terminal that does not affect its communication service of accepting adopts little station that communication service is provided, provide communication service to macrocell user terminal configuration macrocell for the cooperation set, provide communication service and all unify to adopt the collaboration type multipoint system for all user terminals unlike prior art, cooperate after all user terminals all being needed little station in the network side of communication network and grand station consult one by one, so both can reduce the network side implementation complexity of communication network, save the network side resource of communication network, reduce again the interference that produces.
Description of drawings
The isomerism network structure schematic diagram that Fig. 1 provides for prior art;
Fig. 2 has with little station of overlay area and the interference schematic diagram between grand station in the heterogeneous network of prior art;
Fig. 3 is the method flow diagram of collaboration type multicast communication in heterogeneous network provided by the invention;
Fig. 4 is the method specific embodiment flow chart of collaboration type multicast communication in heterogeneous network provided by the invention;
Fig. 5 is the system configuration schematic diagram of collaboration type multicast communication in heterogeneous network provided by the invention;
Fig. 6 is little station structure schematic diagram of collaboration type multicast communication in heterogeneous network provided by the invention;
Fig. 7 is the Microcell user terminal structural representation of collaboration type multicast communication in heterogeneous network provided by the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
The present invention is when adopting the collaboration type multipoint system to provide service to the user terminal in heterogeneous network, be not that unification provides for all user terminals as prior art, but provide respectively for macrocell user terminal and Microcell user terminal, namely first confirm the classification of user terminal, just provide communication service for the Microcell user terminal adopts the coordinate multipoint mode, and the macrocell terminal use only needs grand station static configuration multipoint cooperative mode to provide communication service to get final product.further, when adopting the coordinate multipoint mode that communication service is provided for the Microcell user terminal, the Microcell user terminal only reports the communication quality value at the little station of its measured service and grand station to little station, the little station of service that this little station is the Microcell user terminal, whether its this measured communication quality information that is judged the Microcell user terminal to send up by little station satisfies the disturbed condition that sets, the disturbed condition of this setting is the prerequisite setting according to grand station and the communication service of serving the interference effect Microcell user terminal between little station, if, for adopting the collaboration type multipoint system, this Microcell user terminal provides communication service, otherwise, directly independently provide communication service for this Microcell user terminal by little station.
Like this, be the Microcell user terminal, further just for adopting the collaboration type multipoint system, part Microcell user terminal provides communication service, although and other are had interference when accepting communication service, but the Microcell user terminal that does not affect its communication service of accepting adopts little station that communication service is provided, provide communication service to macrocell user terminal configuration macrocell for the cooperation set, so both can reduce the communication network implementation complexity, save the network side resource of communication network, reduced again to produce and disturbed.
Fig. 3 is the method flow diagram of collaboration type multicast communication in heterogeneous network provided by the invention, and the interference threshold value of Microcell user terminal is set at little station, and its concrete steps are:
Step 300, little station receive the access request that user terminal sends, and confirm as this user terminal and access this little station, and described this user terminal is the Microcell user terminal, the little station of service that described this little station is the Microcell user terminal;
Before this step, when the terminal use wants the network side of access communications network, can be confirmed to be as the grand station of macrocell user terminal access by network side or user terminal, or as the little station of Microcell user terminal access; For the macrocell user terminal at the grand station of access, grand station configuration macrocell provides communication service for cooperation is combined into user terminal;
Information interaction is carried out at step 303, little station and grand station, comprises the cooperation set at little station and grand station for this Microcell user terminal configuration, is combined into this Microcell user terminal by the cooperation that configures communication service is provided;
Here, the cooperation set is exactly the little station of service of Microcell user terminal and the cooperation set at grand station;
Information interaction is carried out at little station and grand station, cooperates, and can adopt prior art to complete for this Microcell user terminal configuration comprises the cooperation set at little station and grand station, and the summary process is:
Little station sends the cooperation transmission request to grand station;
After grand station received, Xiang Weizhan returned to cooperation transmission request acknowledge message;
After little station received, confirmation will this grand station adds the cooperation cell set of this Microcell user terminal, and the cooperation cell aggregate information is sent to this Microcell user terminal;
In Fig. 3, little station can be Femto, Relay or Pico for the equipment of administration Microcell user terminal.Wherein, Femto is generally Home eNodeB.In the present invention, described grand station is the grand station of the Microcell that covers Microcell user terminal place, can be for a plurality of, and described little station is little station of current administration Microcell user terminal.
In Fig. 3, the little station of service that described Microcell user terminal sends and the communication quality value at grand station are that it measures, can and serve the downlink reference signal quality of reception (RSRQ at little station for grand station (can have a plurality of) under current, Reference Signal Receiving Quality) grand station (can have a plurality of) or the downlink reference signal received power (RSRP, Reference Signal Receiving Power) of serving little station or under current.The interference threshold value of set Microcell user terminal can adopt emulation mode to set, and this threshold value guarantees Microcell user terminal when accepting the communication service that little station provides, and the interference at grand station can not affect its communication quality.
In the step 301 of Fig. 3, before the Microcell user terminal sends the communication quality value, also be provided with in the Microcell user terminal and report threshold value, when satisfying when reporting threshold value, just send the communication quality value, if do not satisfy, directly independently provide communication service by little station, provide communication service by little station for this Microcell user terminal.This reports threshold value can be also to adopt emulation mode to set, judge in end side, guarantee that the Microcell user terminal is when accepting the communication service that little station provides, the interference at grand station can not affect its communication quality, the network side that can reduce like this communication network receives the quantity of measurement quality value, reduces network interaction.Report threshold value can comprise that first interference at grand station reports threshold value and grand station and serves second between little station and disturb the poor threshold value that reports, the communication quality value of Microcell user terminal measurement, comprise the downlink reference signal mass value that receives grand station and the downlink reference signal mass value of serving little station, the communication quality value that obtains when the Microcell user terminal measurement satisfies and reports threshold value, namely:
The downlink reference signal mass value that receives grand station disturbs greater than first of grand station and reports threshold value; Perhaps receive the downlink reference signal mass value at grand station and receive difference between the downlink reference signal mass value at the little station of service when disturbing difference to report threshold value less than second between grand station and service little station, send the communication quality value to little station, when sending, can send by corresponding grand station identifications.
Before the described process of Fig. 3, also comprise: user terminal is when the network side of access communications network, selection communication service residential quarter, can select grand station under current to provide or current under little station provide, grand station under user terminal is current and current affiliated little station cover the residential quarter at the current place of user terminal, are namely access grand station or serve little station by user terminal selecting.Certainly, also can determine whether to allow the user terminal access by grand station or little station.This process is prior art, repeats no more.When the grand station of this user terminal access, this user terminal is exactly the macrocell user terminal, and when the little station of this user terminal access service, this user terminal is exactly the Microcell user terminal.When this user terminal was the macrocell user terminal, grand station can the set of static configuration cooperation macrocell provide communication service for this macrocell user terminal, and notifies this macrocell user terminal.
The interference threshold value that in Fig. 3, little station arranges the Microcell user terminal can comprise the first interference threshold value at grand station or/and poor threshold value is disturbed at second between grand station and service little station, and the communication quality value that the Microcell user terminal sends is the downlink reference signal mass value that receives grand station and the downlink reference signal mass value of serving little station.After little station receives, judge and satisfy process to comprise following three kinds:
Whether the mass value of the downlink reference signal at the reception grand station of determining that the Microcell user terminal sends is greater than the first interference threshold value at grand station;
The mass value of the downlink reference signal at the reception grand station of determining perhaps that the Microcell user terminal sends, and whether the difference between the mass value of the downlink reference signal at the little station of the Microcell user terminal sends service disturbs poor threshold value less than second between grand station and little station;
Whether the mass value of the downlink reference signal at the reception grand station of determining perhaps that the Microcell user terminal sends is greater than the first interference threshold value at grand station, and the mass value of the downlink reference signal at the grand station of definite Microcell user terminal sends reception, and whether the difference between the mass value of the downlink reference signal at the little station of the Microcell user terminal sends service disturbs poor threshold value less than second between grand station and little station.
After determining according to above-mentioned deterministic process, just can be according to the step 303 of Fig. 3 or step 304.
Fig. 4 is the method specific embodiment flow chart of collaboration type multicast communication in heterogeneous network provided by the invention, and its concrete steps are:
Whether step 402, user terminal access the Microcell that little station is administered, if not, and execution in step 403; If so, execution in step 405;
In this step, the descending interference value at the grand station that the communication quality value arrives for this Microcell user terminal measurement, this grand station can be for a plurality of;
The little station of service that this little station is this Microcell user terminal;
The little station of service that this little station is this Microcell user terminal;
Whether step 409, disconnected this communication quality value of little station judgement satisfy the interference threshold value of set Microcell user terminal, if so, and execution in step 411; If not, execution in step 410;
In this step, a plurality of grand station of this Microcell user terminal can for a plurality of, namely be administered simultaneously in grand station;
Information interaction is carried out at step 413, little station and grand station, comprises the cooperation set at little station and grand station for this Microcell user terminal configuration;
Step 414, be combined into this Microcell user terminal by the cooperation that configures communication service is provided.
Fig. 5 is the system configuration schematic diagram of collaboration type multicast communication in heterogeneous network provided by the invention, comprises Microcell user terminal, macrocell user terminal, little station and grand station, wherein,
The Microcell user terminal is used for measuring the communication quality value of serving little station and grand station, sends to little station, accepts communication service;
Little station, serving BS for the Microcell user terminal, be used for determining whether this communication quality value that receives satisfies the interference threshold value of set Microcell user terminal, if, carry out information interaction with grand station, comprise the cooperation set at little station and grand station for this Microcell user terminal configuration, provide communication service for the community user terminal under the coordination in the cooperation set; Otherwise, independently provide communication service for this Microcell user terminal;
Grand station is used for carrying out information interaction with little station, for the set of macrocell user terminal static configuration cooperation macrocell provides communication service; Be configured to the Microcell user terminal cooperation set of communication service is provided, provide communication service for the Microcell user terminal under the coordination in the cooperation set;
The macrocell user terminal is used for sending access request, received communication service to grand station.
In Fig. 5, described Microcell user terminal, also be used for before the communication quality value with the little station of measured service and grand station sends to little station, also comprise being provided with and report threshold value, when satisfying when reporting threshold value, send the communication quality value, if do not satisfy, do not send the communication quality value at the little station of measured service and grand station;
Little station also is used to the Microcell user terminal of the communication quality value that does not send the little station of measured service and grand station that communication service is provided.
Fig. 6 is little station structure schematic diagram of collaboration type multicast communication in heterogeneous network provided by the invention, comprising: receiver module, judge module and Executive Module, wherein,
Receiver module is used for receiving the communication quality value that the Microcell user terminal sends;
Judge module is used for definite little station of service that receives and the communication quality value at grand station and whether satisfies the interference threshold value of set Microcell user terminal, and will determine that result sends to Executive Module;
Executive Module is used for according to determining the result execution: if satisfy, carry out information interaction with grand station, comprise the cooperation set at little station and grand station for this Microcell user terminal configuration, provide communication service for the community user terminal under the coordination in the cooperation set; Otherwise, provide communication service for this Microcell user terminal.
Fig. 7 is the Microcell user terminal structural representation of collaboration type multicast communication in heterogeneous network provided by the invention, comprises measurement module, reports judge module, reporting module and communication module, wherein,
Measurement module is used for measuring the communication quality value of serving little station and grand station, sends to report judge module;
Report judge module, be used for being provided with and report threshold value, when satisfying when reporting threshold value, sends the communication quality value of serving little station and grand station by reporting module; If do not satisfy, access little station by reporting module;
Communication module is used for the communication service that received communication network of network side provides.
Can find out from method, system and device provided by the invention, a little less than the present invention has considered that interference ratio that macrocell user terminal in the heterogeneous network is subject to little station, and the Microcell user terminal is subject to the stronger situation of the interference ratio at grand station, carry out respectively the communication service of coordinate multipoint mode for macrocell user terminal and Microcell user terminal, the Microcell user terminal adopts the set at the little station of service and grand station when cooperation.Further, the present invention reduces the interactive information between the network side of Microcell user terminal and communication network, and avoided to report the communication quality value of all Microcell user terminals and follow-up all Microcell user terminals that are necessary for to adopt the coordinate multipoint mode to communicate service, lacked and partly measured and report, improved network resource utilization, reduce the complexity of user terminal to send up, reduced with network side between capacity and the design complexities of communicating by letter.
Therefore, the present invention can so that the macrocell user terminal obtains the cooperative gain of traditional employing coordinate multipoint mode, improve telecommunication service quality and the throughput of Microcell user terminal simultaneously.
Above act preferred embodiment; the purpose, technical solutions and advantages of the present invention are further described; institute is understood that; the above is only preferred embodiment of the present invention; not in order to limit the present invention; within the spirit and principles in the present invention all, any modification of doing, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the method for collaboration type multicast communication in a heterogeneous network, is characterized in that, little station arranges the interference threshold value of Microcell user terminal, and the method also comprises:
After little station received the access request of user terminal transmission, for this user terminal accesses this little station, described this user terminal was the Microcell user terminal, the little station of service that described little station is the Microcell user terminal;
The little station of service that the Microcell user terminal that little station reception Microcell user terminal sends is measured and the communication quality value at grand station;
Little station judges whether this communication quality value satisfies the interference threshold value of set Microcell user terminal, if, comprise the cooperation set at little station and grand station for this Microcell user terminal configuration, be combined into this Microcell user terminal by the cooperation that configures communication service is provided; If not, little station independently provides communication service for this Microcell user terminal.
2. the method for claim 1, is characterized in that, before described little station receives the access request of Microcell user terminal transmission, also comprises:
User terminal is confirmed whether and will as the little station of Microcell user terminal access, still will accesses grand station as the macrocell user terminal.
3. method as claimed in claim 2, is characterized in that, and is described during as the grand station of macrocell user terminal access, and the static configuration macrocell set that cooperates in described grand station provides communication service for this macrocell user terminal, and notifies this macrocell user terminal.
4. the method for claim 1, is characterized in that, before the communication quality value at the measured little station of service of described reception Microcell user terminal and grand station, the method also comprises:
The setting of Microcell user terminal reports threshold value, judging whether the communication quality value satisfies reports threshold value, if so, sends the communication quality value at the little station of measured service and grand station, if do not satisfy, described little station provides communication service for this Microcell user terminal.
5. method as claimed in claim 4, is characterized in that, the threshold value that reports of described setting is that first of grand station disturbs the second interference difference that reports threshold value or grand station and serve between little station to report threshold value; The communication quality value of described Microcell user terminal is the downlink reference signal mass value that receives grand station and the downlink reference signal mass value of serving little station;
Described judgement communication quality value is satisfied reports the process of threshold value to be:
The downlink reference signal mass value that receives grand station disturbs greater than first of grand station and reports threshold value;
The difference that perhaps receives the downlink reference signal mass value at grand station and receive between the downlink reference signal mass value at the little station of service disturbs difference to report threshold value less than second between grand station and service little station.
6. the method for claim 1, is characterized in that, the interference threshold value of the Microcell user terminal that described little station arranges comprises that the first interference threshold value at grand station differs from threshold value or/and disturb at second between grand station and service little station;
The communication quality value that described Microcell user terminal sends is the downlink reference signal mass value that receives grand station and the downlink reference signal mass value of serving little station;
Described little station judges that the interference threshold value whether this communication quality value satisfies set Microcell user terminal is:
Whether the mass value of the downlink reference signal at the reception grand station of determining that the Microcell user terminal sends is greater than the first interference threshold value at grand station;
Perhaps/and the mass value of the downlink reference signal at the definite Microcell user terminal reception grand station that sends, and whether the difference between the mass value of the downlink reference signal at the little station of the Microcell user terminal sends service is less than grand station with serve second between little station and disturb poor threshold value.
7. the system of collaboration type multicast communication in a heterogeneous network, is characterized in that, comprises Microcell user terminal, macrocell user terminal, little station and grand station, wherein,
The Microcell user terminal is used for measuring the communication quality value of serving little station and grand station, sends to little station, accepts communication service;
Little station, serving BS for the Microcell user terminal, be used for determining whether this communication quality value that receives satisfies the interference threshold value of set Microcell user terminal, if, carry out information interaction with grand station, comprise the cooperation set at little station and grand station for this Microcell user terminal configuration, provide communication service for the community user terminal under the coordination in the cooperation set; Otherwise, independently provide communication service for this Microcell user terminal;
Grand station is for the set of macrocell user terminal static configuration cooperation macrocell provides communication service; Be used for carrying out information interaction with little station, be configured to the cooperation set that the Microcell user terminal provides communication service, provide communication service for the Microcell user terminal under the coordination in the cooperation set;
The macrocell user terminal is used for sending access request, received communication service to grand station.
8. system as claimed in claim 7, it is characterized in that, described Microcell user terminal, also be used for before the communication quality value with the little station of measured service and grand station sends to little station, also comprise being provided with reporting threshold value, when satisfying when reporting threshold value, send the communication quality value, if do not satisfy, do not send the communication quality value at the little station of measured service and grand station;
Little station also is used to the Microcell user terminal of the communication quality value that does not send the little station of measured service and grand station that communication service is provided.
9. little station of collaboration type multicast communication in a heterogeneous network, is characterized in that, comprising: receiver module, judge module and Executive Module, wherein,
Receiver module is used for receiving the communication quality value that the Microcell user terminal sends;
Judge module is used for definite little station of service that receives and the communication quality value at grand station and whether satisfies the interference threshold value of set Microcell user terminal, and will determine that result sends to Executive Module;
Executive Module, be used for according to determining the result execution: if satisfy, carry out information interaction with grand station, comprise the cooperation set at little station and grand station for this Microcell user terminal configuration, provide communication service for this Microcell user terminal under the coordination in the cooperation set; Otherwise, provide communication service for this Microcell user terminal.
10. the Microcell user terminal of collaboration type multicast communication in a heterogeneous network, is characterized in that, comprise measurement module, report judge module, reporting module and communication module, wherein,
Measurement module is used for measuring the communication quality value of serving little station and grand station, sends to report judge module;
Report judge module, be used for being provided with and report threshold value, when satisfying when reporting threshold value, sends the communication quality value of serving little station and grand station by reporting module; If do not satisfy, access little station by reporting module;
Communication module is used for the communication service that received communication network of network side provides.
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| CN101132190A (en) * | 2007-09-28 | 2008-02-27 | 中兴通讯股份有限公司 | Method for automatically controlling subdistrict interference |
| CN101815331A (en) * | 2009-02-25 | 2010-08-25 | 中兴通讯股份有限公司 | Cooperative cell selection method participating cooperative transmission, service base station and communication system |
| CN102026207A (en) * | 2010-12-13 | 2011-04-20 | 中兴通讯股份有限公司 | Inter-cell interference coordination method and device in heterogeneous network |
| US20110211560A1 (en) * | 2010-02-26 | 2011-09-01 | Hitachi, Ltd. | Mobility control method mitigating inter cell interference and base stations which adopt the method |
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| CN101132190A (en) * | 2007-09-28 | 2008-02-27 | 中兴通讯股份有限公司 | Method for automatically controlling subdistrict interference |
| CN101815331A (en) * | 2009-02-25 | 2010-08-25 | 中兴通讯股份有限公司 | Cooperative cell selection method participating cooperative transmission, service base station and communication system |
| US20110211560A1 (en) * | 2010-02-26 | 2011-09-01 | Hitachi, Ltd. | Mobility control method mitigating inter cell interference and base stations which adopt the method |
| CN102026207A (en) * | 2010-12-13 | 2011-04-20 | 中兴通讯股份有限公司 | Inter-cell interference coordination method and device in heterogeneous network |
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