CN103096332B - The method of collaboration type multicast communication in heterogeneous network, system and terminal - Google Patents
The method of collaboration type multicast communication in heterogeneous network, system and terminal Download PDFInfo
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Abstract
The method of collaboration type multicast communication in heterogeneous network, system and a terminal, macrocell user terminal is cooperation set by macro station static configuration macrocell; Micro-station receives the micro-station of measured service of Microcell user terminal transmission and the communication quality value of macro station; Micro-station judges whether this communication quality value meets the interference threshold value of set Microcell user terminal, if so, for this Microcell user terminal configuration comprises the cooperation set of micro-station and macro station, is combined into this Microcell user terminal provides communication service by collaboration set; If not, only by micro-station for this Microcell user terminal provides communication service.The present invention does not need the communication quality value measuring adjacent micro-station, reduces the network side implementation complexity of communication network, saves communication network side resource, cooperation can be utilized again to alleviate presence of intercell interference.
Description
Technical field
The present invention relates to wireless communication field, the method for particularly collaboration type multicast communication in a kind of heterogeneous network, system and terminal.
Background technology
Along with the development of wireless communication technology, the requirement of radio communication to capacity and covering is also more and more higher, and the communication network of traditional employing macrocellular networking mode is more and more difficult meets growing high power capacity and the large demand covered.Therefore, there is heterogeneous network.Heterogeneous network is exactly in the coverage of macrocellular network, dispose some lower powered micro-stations, to realize overlapping covering or supplementary covering, 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 macro stations 100, each macro station 100 is covered with a cellular zone, in each cellular zone, also comprise micro-station respectively, micro-station can be millimicro cellular basestation (Femto) 101, relaying (Relay) 102 and slight station (Pico) 103.Wherein, Femto is generally Home eNodeB.
Here, by the node of lower powered open access, such as millimicro cellular basestation, relaying and slight station are all called micro-station.
Although adopt the heterogeneous network shown in Fig. 1 to enhance the communication throughput of communication network by the band resource reusing communication network in the same space, because the interference problem between micro-station of introducing with covering and macro station becomes the key factor of the communication quality suppressing communication network.The interference profile situation had in heterogeneous network is: micro-station transmitting power is smaller, is approximately 1 watt, when providing communication service for administered Microcell user terminal, more weak to the Communication Jamming of macrocell user terminal; The transmitting power of macro station is larger, is approximately 40 watts, when providing communication service for administered macrocell user terminal, stronger to the Communication Jamming of Microcell user terminal, particularly to the Microcell user terminal at edge, Microcell.
As shown in Figure 2, Fig. 2 is the interference schematic diagram had in the heterogeneous network of prior art between micro-station of same overlay area and macro station.In this heterogeneous network, comprise macro station 201 and micro-station 202, the Microcell that micro-station 202 is administered is in the macrocell that macro station 201 is administered.In this heterogeneous network, also comprising Microcell user terminal 203 and macrocell user terminal 204, communicating with access macro station 201 for accessing micro-station 202 respectively.Micro-station 202 due to transmitting power smaller, smaller to the interference of macrocell user terminal 204, macro station 201 due to transmitting power larger, larger to the interference ratio of Microcell user terminal 203.
In order to overcome the interference problem had between micro-station of same overlay area and macro station in heterogeneous network, the enhancing presence of intercell interference of time division multiplexing (TDM) mode can be adopted to delete the solution of (elClC), namely: in order to avoid macro station is to the interference of Microcell user terminal, macrocell staggers in time with communicating of Microcell, in the moment of micro-cell communication, macrocell does not communicate.Although adopt the interference problem had between micro-station of same overlay area and macro station that can solve in this way in heterogeneous network, but waste the running time-frequency resource of a large amount of communication networks.
Therefore, have employed collaboration type multiple spot (CoMP, Coordinated Multiple Point) method and both overcome the interference problem had between micro-station of same overlay area and macro station in heterogeneous network, the running time-frequency resource of communication network can not be wasted again.The method of collaboration type multiple spot for: the communication service of Microcell user terminal or macrocell user terminal has been cooperated by administered micro-station and macro station simultaneously, static state can be adopted when arranging or dynamically arrange, like this, just the interfere with communications signal of macro station to Microcell user terminal can be converted to useful signal of communication, reduce interference, the signal of communication improving Microcell user terminal receives Signal to Interference plus Noise Ratio, significantly improves the communication throughput of communication network.
When adopting collaboration type multipoint iterations to overcome the interference problem had between micro-station of same overlay area and macro station in heterogeneous network, usually to all user terminals, comprise macrocell user terminal and Microcell user terminal all unification collaboration type multipoint communication service is provided, this just needs the macro station in the network side of communication network and consults between micro-station to carry out, increase implementation complexity, and occupy 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 again producing interference when providing communication service for Microcell user terminal.
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 again producing interference when providing communication service for Microcell user terminal.
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 again producing interference when providing communication service for Microcell user terminal.
For achieving the above object, technical scheme of the invention process is specifically achieved in that
A method for collaboration type multicast communication in heterogeneous network, micro-station arranges the interference threshold value of Microcell user terminal, and the method also comprises:
After micro-station receives the access request of user terminal transmission, for this user terminal accesses this micro-station, this user terminal described is Microcell user terminal, and described micro-station is the micro-station of service of Microcell user terminal;
Micro-station receives the micro-station of the service measured by the user terminal of Microcell of Microcell user terminal transmission and the communication quality value of macro station;
Micro-station judges whether this communication quality value meets the interference threshold value of set Microcell user terminal, if, for this Microcell user terminal configuration comprises the cooperation set of micro-station and macro station, be combined into this Microcell user terminal by configured collaboration set and communication service is provided; If not, micro-station is independently for this Microcell user terminal provides communication service.
A system for collaboration type multicast communication in heterogeneous network, comprises Microcell user terminal, macrocell user terminal, micro-station and macro station, wherein,
Microcell user terminal, for measuring the communication quality value at the micro-station of service and macro station, sending to micro-station, accepting communication service;
Micro-station, for the serving BS of Microcell user terminal, for determining whether this received communication quality value meets the interference threshold value of set Microcell user terminal, if, then carry out information interaction with macro station, for this Microcell user terminal configuration comprises the cooperation set of micro-station and macro station, for community user terminal provides communication service under the coordination in cooperation set; Otherwise, then independently for this Microcell user terminal provides communication service;
Macro station, for the set of macrocell user terminal static configuration cooperation macrocell provides communication service; For carrying out information interaction with micro-station, be configured to the cooperation set that Microcell user terminal provides communication service, for Microcell user terminal provides communication service under the coordination in cooperation set;
Macrocell user terminal, for sending access request to macro station, received communication service.
A micro-station for collaboration type multicast communication in heterogeneous network, comprising: receiver module, judge module and Executive Module, wherein,
Receiver module, for receiving the communication quality value that Microcell user terminal sends;
Judge module, for determining whether the communication quality value at the micro-station of received service and macro station meets the interference threshold value of set Microcell user terminal, and sends to Executive Module by determination result;
Executive Module, for performing according to determination result: if met, then carry out information interaction with macro station, for this Microcell user terminal configuration comprises the cooperation set of micro-station and macro station, for community user terminal provides communication service under the coordination in cooperation set; Otherwise, then for this Microcell user terminal provides communication service.
A Microcell user terminal for collaboration type multicast communication in heterogeneous network, comprises measurement module, reports judge module, reporting module and communication module, wherein,
Measurement module, for measuring the communication quality value at the micro-station of service and macro station, sending to and reporting judge module;
Reporting judge module, reporting threshold value for being provided with, when meet report threshold value time, sent the communication quality value of the micro-station of service and macro station by reporting module; If do not met, access micro-station by reporting module;
Communication module, for the communication service that received communication network of network side provides.
As can be seen from the above scheme, the present invention is when adopting collaboration type multipoint system to provide communication service for user terminal, be not unify to provide 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 for Microcell user terminal adopts coordinate multipoint mode to provide communication service, and macro cell terminal user only needs macro station static configuration multipoint cooperative mode to provide communication service.Further, when adopting coordinate multipoint mode to provide communication service for Microcell user terminal, Microcell user terminal only reports the communication quality value of the micro-station of the service measured by it and macro station to micro-station, this micro-station is the micro-station of service of Microcell user terminal, by micro-station judge Microcell user terminal to send up its measured by this communication quality information whether meet set by disturbed condition, the disturbed condition of this setting according to macro station and serve the interference effect Microcell user terminal between micro-station communication service premised on arrange, if, then for this Microcell user terminal adopts collaboration type multipoint system to provide communication service, otherwise, then directly provide communication service by micro-station is independent for this Microcell user terminal.Because the present invention is just Microcell user terminal, further just for part Microcell user terminal adopts collaboration type multipoint system to provide communication service, although and have interference when accepting communication service to other, but the Microcell user terminal not affecting the communication service that it accepts adopts micro-station to provide communication service, to macrocell user terminal configuration macrocell for cooperation set provides communication service, and for all user terminals are all unified to adopt collaboration type multipoint system to provide communication service unlike prior art, cooperate after all needing the micro-station in the network side of communication network and macro station to consult one by one to all user terminals, so the network side implementation complexity of communication network both can be reduced, save the network side resource of communication network, reduce again the interference produced.
Accompanying drawing explanation
The isomerism network structure schematic diagram that Fig. 1 provides for prior art;
Fig. 2 is the interference schematic diagram had in the heterogeneous network of prior art between micro-station of same overlay area and macro station;
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 micro-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 object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the present invention is described in further detail.
The present invention is when employing collaboration type multipoint system provides service to the user terminal in heterogeneous network, be not unify to provide 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 for Microcell user terminal adopts coordinate multipoint mode to provide communication service, and macro cell terminal user only needs macro station static configuration multipoint cooperative mode to provide communication service.Further, when adopting coordinate multipoint mode to provide communication service for Microcell user terminal, Microcell user terminal only reports the communication quality value of the micro-station of the service measured by it and macro station to micro-station, this micro-station is the micro-station of service of Microcell user terminal, by micro-station judge Microcell user terminal to send up its measured by this communication quality information whether meet set by disturbed condition, the disturbed condition of this setting according to macro station and serve the interference effect Microcell user terminal between micro-station communication service premised on arrange, if, then for this Microcell user terminal adopts collaboration type multipoint system to provide communication service, otherwise, then directly provide communication service by micro-station is independent for this Microcell user terminal.
Like this, for Microcell user terminal, further just for part Microcell user terminal adopts collaboration type multipoint system to provide communication service, although and have interference when accepting communication service to other, but the Microcell user terminal not affecting the communication service that it accepts adopts micro-station to provide communication service, to macrocell user terminal configuration macrocell for cooperation set provides communication service, so both communication network implementation complexity can be reduced, save the network side resource of communication network, additionally reduce and produce interference.
Fig. 3 is the method flow diagram of collaboration type multicast communication in heterogeneous network provided by the invention, and arrange the interference threshold value of Microcell user terminal at micro-station, its concrete steps are:
Step 300, micro-station receive the access request that user terminal sends, and confirm as this user terminal and access this micro-station, this user terminal described is Microcell user terminal, and this micro-station described is the micro-station of service of Microcell user terminal;
Before this step, when terminal use wants the network side of access communications network, can be confirmed to be by network side or user terminal and access macro station as macrocell user terminal, or access micro-station as Microcell user terminal; For the macrocell user terminal of access macro station, macro station configuration macrocell provides communication service for collaboration set is combined into user terminal;
Step 301, micro-station receive the micro-station of service of Microcell user terminal transmission and the communication quality value of macro station;
Step 302, micro-station judge whether this communication quality value meets the interference threshold value of set Microcell user terminal, if so, perform step 303; If not, step 304 is performed;
Step 303, micro-station and macro station carry out information interaction, for this Microcell user terminal configuration comprises the cooperation set of micro-station and macro station, be combined into this Microcell user terminal provide communication service by configured collaboration set;
Here, cooperation set is exactly the micro-station of service of Microcell user terminal and the cooperation set of macro station;
Micro-station and macro station carry out information interaction, cooperate, and the cooperation set comprising micro-station and macro station for this Microcell user terminal configuration can adopt prior art to complete, and summary process is:
Micro-station sends cooperation transmission request to macro station;
After macro station receives, Xiang Weizhan returns cooperation transmission request acknowledge message;
After micro-station receives, confirm the cooperation cell set this macro station being added this Microcell user terminal, cooperation cell aggregate information is sent to this Microcell user terminal;
Step 304, micro-station are independently for this Microcell user terminal provides communication service;
In figure 3, micro-station is the equipment of administration Microcell user terminal, can be Femto, Relay or Pico.Wherein, Femto is generally Home eNodeB.In the present invention, described macro station is the macro station of Microcell covering user terminal place, Microcell, micro-station of can be multiple, described micro-stations be current administration Microcell user terminal.
In figure 3, the communication quality value of the micro-station of service that described Microcell user terminal sends and macro station is that its measurement obtains, can be current affiliated macro station (can have multiple) and the downlink reference signal quality of reception (RSRQ serving micro-station, Reference Signal Receiving Quality) or current belonging to macro station (can have multiple) or serve the downlink reference signal received power (RSRP, ReferenceSignal Receiving Power) at micro-station.The interference threshold value of set Microcell user terminal can adopt emulation mode to set, and this threshold value ensures that Microcell user terminal is when accepting the communication service that micro-station provides, and the interference of macro station can not affect its communication quality.
In the step 301 of Fig. 3, before Microcell user terminal sends communication quality value, also be provided with in the user terminal of Microcell and report threshold value, when meet report threshold value time, just send communication quality value, if do not met, directly independently provide communication service by micro-station, by micro-station for this Microcell user terminal provides communication service.This reports threshold value also can be adopt emulation mode setting, judge in end side, ensure that Microcell user terminal is when accepting the communication service that micro-station provides, the interference of macro station can not affect its communication quality, the network side that can reduce communication network like this receives the quantity of measurement quality value, reduces network interaction.The first interference reporting threshold value can comprise macro station reports between the micro-station of threshold value and macro station and service second to disturb difference to report threshold value, the communication quality value of Microcell user terminal measurement, comprise the downlink reference signal mass value receiving macro station and the downlink reference signal mass value of serving micro-station, the communication quality value obtained when Microcell user terminal measurement meets and reports threshold value, namely:
Receive the first interference that the downlink reference signal mass value of macro station is greater than macro station and report threshold value; Or receive macro station downlink reference signal mass value and receive serve micro-station downlink reference signal mass value between difference be less than macro station and serve second between micro-station and disturb and differ from when reporting threshold value, send communication quality value to micro-station, when sending, can corresponding macro station mark send.
Before the process described in Fig. 3, also comprise: user terminal is when the network side of access communications network, select communication service community, can select current belonging to macro station provide or current belonging to micro-station provide, macro station belonging to user terminal is current and current belonging to micro-station cover the community at the current place of user terminal, be namely access macro station by user terminal selecting or serve micro-station.Certainly, also can be determined whether to allow user terminal to access by macro station or micro-station.This process is prior art, repeats no more.When this user terminal access macro station, this user terminal is exactly macrocell user terminal, and when the micro-station of this user terminal access service, this user terminal is exactly Microcell user terminal.When this user terminal is macrocell user terminal, macro station static configuration cooperation macrocell set can provide communication service for this macrocell user terminal, and notifies this macrocell user terminal.
The interference threshold value that in Fig. 3, micro-station arranges Microcell user terminal can comprise the first interference threshold value of macro station or/and difference threshold value is disturbed at second between macro station and the micro-station of service, and the communication quality value that Microcell user terminal sends is receive the downlink reference signal mass value of macro station and serve the downlink reference signal mass value at micro-station.After micro-station receives, judge and meet process to comprise following three kinds:
Determine whether the mass value of the downlink reference signal of the reception macro station that Microcell user terminal sends is greater than the first interference threshold value of macro station;
Or determine the mass value of the downlink reference signal of the reception macro station that Microcell user terminal sends, and whether the difference between the mass value of the downlink reference signal at the micro-station of the service that Microcell user terminal sends, be less than the second interference difference threshold value between macro station and micro-station;
Or determine whether the mass value of the downlink reference signal of the reception macro station that Microcell user terminal sends is greater than the first interference threshold value of macro station, and determine the mass value of the downlink reference signal of the reception macro station that Microcell user terminal sends, and whether the difference between the mass value of the downlink reference signal at the micro-station of the service that Microcell user terminal sends, be less than the second interference difference threshold value between macro station and micro-station.
After determining according to above-mentioned deterministic process, just can 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:
Step 401, user terminal selecting communication service community;
Whether step 402, user terminal access the Microcell that micro-station is administered, and if not, perform step 403; If so, step 405 is performed;
Step 403, this user terminal are macrocell user terminal, and the set of macro station static configuration cooperation macrocell provides communication service for this macrocell user terminal, performs step 404;
Step 404, macro station to this macrocell user terminal notification cooperation macrocell aggregate information, by macrocell set for this macrocell user terminal provides communication service;
Step 405, this user terminal are Microcell user terminal, carry out the measurement of the communication quality value of serving micro-station and macro station;
In this step, communication quality value is the descending interference value of the macro station that this Microcell user terminal measurement arrives, and this macro station can be multiple;
The micro-station of service measured by step 406, this Microcell user terminal confirm and the communication quality value of macro station whether meet arrange report threshold value, if not, perform step 407; If so, step 408 is performed;
Step 407, this Microcell user terminal provide communication services request to the transmission of micro-station, by micro-station independently for this user terminal provides communication service;
This micro-station is the micro-station of service of this Microcell user terminal;
Step 408, this Microcell user terminal send the communication quality value of the micro-station of service and macro station to micro-station;
This micro-station is the micro-station of service of this Microcell user terminal;
Step 409, micro-station judge whether this communication quality value disconnected meets the interference threshold value of set Microcell user terminal, if so, perform step 411; If not, step 410 is performed;
Step 410, micro-station are independently for this user terminal provides communication service;
Step 411, micro-station send cooperation transmission request to macro station;
In this step, macro station can be multiple, namely administers multiple macro stations of this Microcell user terminal simultaneously;
Step 412, micro-station are confirmed whether to receive cooperation transmission request acknowledge message, if so, perform step 413; Otherwise, perform step 410;
Step 413, micro-station and macro station carry out information interaction, for this Microcell user terminal configuration comprises the cooperation set of micro-station and macro station;
Step 414, be combined into this Microcell user terminal by configured collaboration set 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, micro-station and macro station, wherein,
Microcell user terminal, for measuring the communication quality value at the micro-station of service and macro station, sending to micro-station, accepting communication service;
Micro-station, for the serving BS of Microcell user terminal, for determining whether this received communication quality value meets the interference threshold value of set Microcell user terminal, if, then carry out information interaction with macro station, for this Microcell user terminal configuration comprises the cooperation set of micro-station and macro station, for community user terminal provides communication service under the coordination in cooperation set; Otherwise, then independently for this Microcell user terminal provides communication service;
Macro station, for carrying out information interaction with micro-station, for the set of macrocell user terminal static configuration cooperation macrocell provides communication service; Be configured to the cooperation set that Microcell user terminal provides communication service, for Microcell user terminal provides communication service under the coordination in cooperation set;
Macrocell user terminal, for sending access request to macro station, received communication service.
In Figure 5, described Microcell user terminal, also for before the communication quality value at micro-for measured service station and macro station is sent to micro-station, also comprise being provided with and report threshold value, when meet report threshold value time, send communication quality value, if do not met, do not send the communication quality value of the micro-station of measured service and macro station;
Micro-station, the Microcell user terminal also for the communication quality value for not sending the micro-station of measured service and macro station provides communication service.
Fig. 6 is micro-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, for receiving the communication quality value that Microcell user terminal sends;
Judge module, for determining whether the communication quality value at the micro-station of received service and macro station meets the interference threshold value of set Microcell user terminal, and sends to Executive Module by determination result;
Executive Module, for performing according to determination result: if met, then carry out information interaction with macro station, for this Microcell user terminal configuration comprises the cooperation set of micro-station and macro station, for community user terminal provides communication service under the coordination in cooperation set; Otherwise, then for this Microcell user terminal provides communication service.
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, for measuring the communication quality value at the micro-station of service and macro station, sending to and reporting judge module;
Reporting judge module, reporting threshold value for being provided with, when meet report threshold value time, sent the communication quality value of the micro-station of service and macro station by reporting module; If do not met, access micro-station by reporting module;
Communication module, for the communication service that received communication network of network side provides.
As can be seen from method, system and device provided by the invention, contemplated by the invention macrocell user terminal in heterogeneous network, to be subject to the interference ratio at micro-station more weak, and Microcell user terminal is subject to the stronger situation of the interference ratio of macro station, the communication service of coordinate multipoint mode is carried out respectively for macrocell user terminal and Microcell user terminal, Microcell user terminal, when cooperating, adopts the set of the micro-station of service and macro station.Further, the present invention reduces the interactive information between Microcell user terminal and the network side of communication network, and avoid the communication quality value of all Microcells user terminal and the follow-up all Microcells user terminal of being necessary for must be reported to adopt coordinate multipoint mode to carry out communication service, lack part measure and report, improve network resource utilization, reduce the complexity of user terminal to send up, reduce the capacity and design complexities that communicate between network side.
Therefore, the present invention can make macrocell user terminal obtain the cooperative gain of traditional employing coordinate multipoint mode, improves telecommunication service quality and the throughput of Microcell user terminal simultaneously.
More than lift preferred embodiment; the object, technical solutions and advantages of the present invention are further described; be understood that; the foregoing 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 amendment done, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a method for collaboration type multicast communication in heterogeneous network, is characterized in that, micro-station arranges the interference threshold value of Microcell user terminal, and the method also comprises:
After micro-station receives the access request of user terminal transmission, for this user terminal accesses this micro-station, this user terminal described is Microcell user terminal, and described micro-station is the micro-station of service of Microcell user terminal;
Micro-station receives the micro-station of the service measured by the user terminal of Microcell of Microcell user terminal transmission and the communication quality value of macro station;
Micro-station judges whether this communication quality value meets the interference threshold value of set Microcell user terminal, if, for this Microcell user terminal configuration comprises the cooperation set of micro-station and macro station, be combined into this Microcell user terminal by configured collaboration set and communication service is provided; If not, micro-station is independently for this Microcell user terminal provides communication service; Before described micro-station receives the access request of Microcell user terminal transmission, also comprise:
User terminal is confirmed whether to access micro-station as Microcell user terminal, still will as macrocell user terminal access macro station;
Described as macrocell user terminal access macro station time, the set of described macro station static configuration cooperation macrocell provides communication service for this macrocell user terminal, and notifies this macrocell user terminal.
2. the method for claim 1, is characterized in that, before the communication quality value of the micro-station of service measured by the user terminal of described reception Microcell and macro station, the method also comprises:
Microcell user terminal arranges and reports threshold value, judge whether communication quality value meets and report threshold value, if so, then the micro-station of service measured by sending and the communication quality value of macro station, if do not met, described micro-station provides communication service for this Microcell user terminal.
3. method as claimed in claim 2, is characterized in that, the threshold value that reports of described setting is that the first interference of macro station reports between the micro-station of threshold value or macro station and service second disturb to differ from and reports threshold value; The communication quality value of described Microcell user terminal is receive the downlink reference signal mass value of macro station and serve the downlink reference signal mass value at micro-station;
Described judgement communication quality value meets and reports the process of threshold value to be:
Receive the first interference that the downlink reference signal mass value of macro station is greater than macro station and report threshold value;
Or the downlink reference signal mass value of reception macro station and the difference received between the downlink reference signal mass value of serving micro-station are less than macro station and serve second between micro-station disturbs difference to report threshold value.
4. the method for claim 1, is characterized in that, the interference threshold value of the Microcell user terminal that described micro-station is arranged comprises the first interference threshold value of macro station or/and difference threshold value is disturbed at second between macro station and the micro-station of service;
The communication quality value that described Microcell user terminal sends is receive the downlink reference signal mass value of macro station and serve the downlink reference signal mass value at micro-station;
Described micro-station judges that the interference threshold value of the whether satisfied set Microcell user terminal of this communication quality value is:
Determine whether the mass value of the downlink reference signal of the reception macro station that Microcell user terminal sends is greater than the first interference threshold value of macro station;
Or determine the mass value of the downlink reference signal of the reception macro station that Microcell user terminal sends, and whether the difference between the mass value of the downlink reference signal at the micro-station of the service that Microcell user terminal sends, be less than macro station and serve the second interference difference threshold value between micro-station.
5. utilize a system for collaboration type multicast communication in the heterogeneous network of method described in claim 1, it is characterized in that, comprise Microcell user terminal, macrocell user terminal, micro-station and macro station, wherein,
Microcell user terminal, for measuring the communication quality value at the micro-station of service and macro station, sending to micro-station, accepting communication service;
Micro-station, for the serving BS of Microcell user terminal, for determining whether this received communication quality value meets the interference threshold value of set Microcell user terminal, if, then carry out information interaction with macro station, for this Microcell user terminal configuration comprises the cooperation set of micro-station and macro station, for community user terminal provides communication service under the coordination in cooperation set; Otherwise, then independently for this Microcell user terminal provides communication service;
Macro station, for the set of macrocell user terminal static configuration cooperation macrocell provides communication service; For carrying out information interaction with micro-station, be configured to the cooperation set that Microcell user terminal provides communication service, for Microcell user terminal provides communication service under the coordination in cooperation set;
Macrocell user terminal, for sending access request to macro station, received communication service.
6. system as claimed in claim 5, it is characterized in that, described Microcell user terminal, also for before the communication quality value at micro-for measured service station and macro station is sent to micro-station, also comprise being provided with and report threshold value, when meet report threshold value time, send communication quality value, if do not met, do not send the communication quality value of the micro-station of measured service and macro station;
Micro-station, the Microcell user terminal also for the communication quality value for not sending the micro-station of measured service and macro station provides communication service.
7. utilize a micro-station for collaboration type multicast communication in the heterogeneous network of method described in claim 1, it is characterized in that, comprising: receiver module, judge module and Executive Module, wherein,
Receiver module, for receiving the communication quality value that Microcell user terminal sends;
Judge module, for determining whether the communication quality value at the micro-station of received service and macro station meets the interference threshold value of set Microcell user terminal, and sends to Executive Module by determination result;
Executive Module, for performing according to determination result: if met, then carry out information interaction with macro station, for this Microcell user terminal configuration comprises the cooperation set of micro-station and macro station, for this Microcell user terminal provides communication service under the coordination in cooperation set; Otherwise, then for this Microcell user terminal provides communication service.
8. utilize a Microcell user terminal for collaboration type multicast communication in the heterogeneous network of method described in claim 1, it is characterized in that, comprise measurement module, report judge module, reporting module and communication module, wherein,
Measurement module, for measuring the communication quality value at the micro-station of service and macro station, sending to and reporting judge module;
Reporting judge module, reporting threshold value for being provided with, when meet report threshold value time, sent the communication quality value of the micro-station of service and macro station by reporting module; If do not met, access micro-station by reporting module;
Communication module, for the communication service that received communication network of network side provides.
Priority Applications (1)
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| 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 |
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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 |
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