CN101909321B - Method, cooperation functional entity and system for cell resource scheduling - Google Patents
Method, cooperation functional entity and system for cell resource scheduling Download PDFInfo
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- CN101909321B CN101909321B CN 200910085138 CN200910085138A CN101909321B CN 101909321 B CN101909321 B CN 101909321B CN 200910085138 CN200910085138 CN 200910085138 CN 200910085138 A CN200910085138 A CN 200910085138A CN 101909321 B CN101909321 B CN 101909321B
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Abstract
The invention discloses a method, a cooperation functional entity and a system for cell resource scheduling. The method comprises the following steps of: acquiring a cooperation cell set participating in cooperation multi-point (CoMP) business according to a user terminal measurement report or a CoMP transmission request which are reported by a service cell; establishing a wireless access bearer of the cooperation cell to the CoMP business according to the wireless access bearer information corresponding to the CoMP business; instructing the cooperation cell to carry out access layer configuration according to the wireless access bearer information; and determining wireless resource scheduling information corresponding to the CoMP business, and instructing the service cell and the cooperation cell to carry out the CoMP business according to the same wireless resource scheduling information. The invention synchronizes data transmission requiring cooperation among different base station cells, reduces the user interference among the cells and improves the utilization ratio of wireless resources.
Description
Technical field
The present invention relates to communication technical field, relate in particular to method, cooperation functional entity and the system of cell resource scheduling.
Background technology
In existing 2G, the 3G network system, each base station (e-NodeB, be called for short eNB) responsible a plurality of residential quarters, each residential quarter only provides service for the user of this residential quarter, scheduling of resource is positioned at medium access control (the Media Access Control of this base station, be called for short MAC) layer, can there be interference to the user of other base station affiliated subdistricts when therefore carrying out resource distribution and transfer of data.
Fig. 1 is the schematic diagram that the prior art Cell Edge User receives signal.As shown in Figure 1, solid line represents useful signal, and dotted line represents noise signal, for the user of cell edge, when receiving useful signal, also receives the noise signal of neighbor cell, and user's service experience is far below Cell Center User in this scope.Therefore, for Communication System Design and the network operation of reality, need to consider to improve the service quality of Cell Edge User, reduce presence of intercell interference, guarantee that network provides the consistency of service in different geographic regions.
In the prior art, communication interface is not set between the base station, the base station all is to carry out the signal transmission by upper layer network node wireless network controller (Radio Network Controller is called for short RNC), causes the increase of propagation delay time.Current, in the standardization effort process of the 3GPP LTE system of 3GPP tissue, the X2 communication interface is proposed between the base station for the Access Network of 3GPP LTE system, but at present X2 interface and other interface protocols all to consider to adopt performing coordinated scheduling machine-processed.
Distributed radio system is exactly to utilize the coordination mechanism between base station cell or a plurality of transmitting-receiving node to carry out transfer of data and service is provided, wherein collaboration type multicast communication (Coordinated Multipoint transmission and reception is called for short CoMP) technology has received increasing attention as a kind of new technology that improves Cell Edge User service experience, reduction area interference and studies.The CoMP technology is also referred to as Network MIMO technology, that the channel information of the interface transmission neighbor cell user between neighbor cell and data message are to finish performing coordinated scheduling and information consolidation processing procedure, to improve wireless resource utility efficiency and throughput of system.Have relevant CoMP technology algorithm research manuscript in the 3GPP LTE standard of formulating now and the motion, related to the principle and advantage of CoMP business, but all do not related to the contents such as upper-layer protocol that this technology is correlated with and control signal mechanism.
In realizing process of the present invention, the inventor finds that there are the following problems in the prior art cell resource scheduling mode: the cooperative scheduling that can not carry out the minizone, can't realize between a plurality of residential quarters that to needing the synchronization mechanism of cooperation transmission data, wireless resource utility efficiency is low.
Summary of the invention
The objective of the invention is to solve the cooperative scheduling that can not carry out the different base station minizone in the prior art cell resource scheduling mode, can't realize needing the synchronous defective of cooperation transmission data, a kind of method, cooperation functional entity and system of cell resource scheduling are proposed, to realize between the different base station residential quarter needing the synchronous of cooperation transmission data, reduce inter-cell user and disturb, improve wireless resource utility efficiency.
For achieving the above object, according to an aspect of the present invention, a kind of method of cell resource scheduling is provided, comprise: user terminal (the User Equipment that reports according to Serving cell, be called for short UE) to measuring measurement report or the cooperative multipoint transmission request of each residential quarter in the set of cells, obtain the cooperation cell set that participates in the cooperative multipoint transmission business; According to the professional corresponding RAB information of cooperative multipoint transmission, set up cooperation cell to the RAB of cooperative multipoint transmission business; The indication cooperation cell is carried out access layer configuration according to RAB information; Determine the wireless resource scheduling information that cooperative multipoint transmission is professional corresponding, indication Serving cell and cooperation cell are carried out the cooperative multipoint transmission business according to identical wireless resource scheduling information.
In the technical program, wireless resource scheduling information comprises modulation coding information and running time-frequency resource information.The step of determining the wireless resource scheduling information of the professional correspondence of cooperative multipoint transmission specifically comprises: obtain Serving cell to the suggestion of wireless resource scheduling, and/or Radio Resource operating position, the loading condition of each residential quarter; According to the suggestion of Serving cell to wireless resource scheduling, and/or Radio Resource operating position, the loading condition of each residential quarter, determine the professional corresponding wireless resource scheduling information of cooperative multipoint transmission.
In the technical program, RAB information comprises the radio bearer sign, the transport layer address, and the QoS information of cooperative multipoint transmission business, UE supports maximum bit rate, MME UE S1AP ID, and/or eNB UE S1AP ID; The step that the indication cooperation cell is carried out access layer configuration according to RAB information specifically comprises: the indication cooperation cell is carried out the protocol configuration of PDCP layer, rlc layer and MAC layer according to radio bearer information.
In the technical program, the step that the indication cooperation cell is carried out access layer configuration according to RAB information also comprises: the indication cooperation cell is carried out the protocol configuration of Signaling Radio Bearer and/or Data Radio Bearer according to RAB information.
Preferably, in the technical program, the user terminal that reports according to Serving cell is to measuring the measurement report of each residential quarter in the set of cells, the step of obtaining the cooperation cell set that participates in the cooperative multipoint transmission business specifically comprises: according to the measurement report that Serving cell reports, judge whether to carry out the cooperative multipoint transmission business; If need to carry out the cooperative multipoint transmission business, then according to measurement report and preset configuration, obtain the alternative cooperation cell set that participates in the cooperative multipoint transmission business, send the cooperative multipoint transmission inquiry to alternative cooperation cell; According to the response of alternative cooperation cell to the cooperative multipoint transmission inquiry, obtain the cooperation cell set that participates in the cooperative multipoint transmission business; If do not need to carry out the cooperative multipoint transmission business, then send the message that does not need to carry out the cooperative multipoint transmission business to Serving cell.
Preferably, in the technical program, the cooperative multipoint transmission request that reports according to Serving cell, the step of obtaining the cooperation cell set that participates in the cooperative multipoint transmission business can also comprise before: after Serving cell receives service request, obtain user terminal to measuring the measurement report of each residential quarter in the set of cells; According to measurement report and preset configuration, judge whether to carry out the cooperative multipoint transmission business; If do not need to carry out the cooperative multipoint transmission business, then Serving cell carries out separately business; If need to carry out the cooperative multipoint transmission business, then according to measurement report, generate alternative cooperation cell set, send the cooperative multipoint transmission request, comprise the set of measurement report and/or alternative cooperation cell in the cooperative multipoint transmission request.The cooperative multipoint transmission request that reports according to Serving cell, the step of obtaining the cooperation cell set that participates in the cooperative multipoint transmission business specifically comprises: the cooperative multipoint transmission request according to Serving cell reports sends the cooperative multipoint transmission inquiry to alternative cooperation cell; According to the response of alternative cooperation cell to the cooperative multipoint transmission inquiry, obtain the cooperation cell set that participates in the cooperative multipoint transmission business.
In the technical program, if the access layer configuration of Serving cell and RAB information are not mated, set up cooperation cell and can also comprise after the step of the RAB of cooperative multipoint transmission business: set up Serving cell to the RAB of cooperative multipoint transmission business; The indication Serving cell carries out access layer configuration according to RAB information.
In the technical program, set up cooperation cell the step of the RAB of cooperative multipoint transmission business is specifically comprised: directly set up cooperation cell to the RAB of cooperative multipoint transmission business; Or set up cooperation cell to the RAB of cooperative multipoint transmission business by mobile management entity.
Preferably, in the technical program, indication Serving cell and cooperation cell be according to identical wireless resource scheduling information, carries out also comprising after the step of cooperative multipoint transmission business: obtain user terminal to measuring the measurement report of each residential quarter in the set of cells; According to measurement report and preset configuration, judge in the cooperation cell set whether have the residential quarter that does not meet the condition that participates in the cooperative multipoint transmission business; If exist, then send the CoMP abort message to this cooperation cell, and from the cooperation cell set, delete this residential quarter.
Preferably, in the technical program, indication Serving cell and cooperation cell be according to identical wireless resource scheduling information, carries out can also comprising after the step of cooperative multipoint transmission business: obtain user terminal to measuring the measurement report of each residential quarter in the set of cells; According to measurement report and preset configuration, judge whether to proceed the cooperative multipoint transmission business; If do not need to proceed the cooperative multipoint transmission business, send the message that cooperative multipoint transmission is ended to cooperation cell; The message that cooperation cell is ended according to cooperative multipoint transmission discharges the Radio Resource carrying, and postbacks cooperative multipoint transmission termination response.
In the technical program, cooperative multipoint transmission is professional to be to belong to different base station, and the cooperative multipoint transmission between residential quarter and the residential quarter is professional.
In the technical program, cooperation cell can be one or more.
For achieving the above object, according to another aspect of the present invention, a kind of cooperation functional entity of cell resource scheduling is provided, it is characterized in that, comprise: select module, the user terminal that is used for reporting according to Serving cell obtains the cooperation cell set that participates in the cooperative multipoint transmission business to measuring measurement report or the cooperative multipoint transmission request of each residential quarter in the set of cells; Module is set up in carrying, is used for setting up cooperation cell to the RAB of cooperative multipoint transmission business according to the professional corresponding RAB information of cooperative multipoint transmission; The access layer configuration module is used to indicate cooperation cell and carries out access layer configuration according to RAB information; Scheduler module be used for to be determined the professional corresponding wireless resource scheduling information of cooperative multipoint transmission, and indication Serving cell and cooperation cell are carried out the cooperative multipoint transmission business according to identical wireless resource scheduling information; The first interface module is used for the Signalling exchange between responsible cooperation functional entity and Serving cell, the cooperation cell.
Preferably, in the technical program, cooperation functional entity can also comprise: the Radio Resource Coordination module is used for being responsible for the coordination of Radio Resource between this cooperation functional entity and other cooperation functional entities; The second interface module is used for being responsible for Radio Resource and coordinates the mutual of signaling.
In the technical program, wireless resource scheduling information comprises modulation coding information and running time-frequency resource information.
Preferably, in the technical program, scheduler module further can comprise: schedule information is obtained submodule, be used for obtaining Serving cell to the suggestion of wireless resource scheduling, and/or Radio Resource operating position, the loading condition of each residential quarter; Schedule information is determined submodule, is used for according to the suggestion of Serving cell to wireless resource scheduling, and/or Radio Resource operating position, the loading condition of each residential quarter, determines the wireless resource scheduling information of cooperative multipoint transmission business.
Preferably, in the technical program, cooperation functional entity can also comprise: monitoring module is used for obtaining user terminal to measuring the measurement report of each residential quarter of set of cells; The first judge module according to measurement report and preset configuration, judges in the cooperation cell set whether have the residential quarter that does not meet the condition that participates in the cooperative multipoint transmission business; The automatic update module of cooperation cell if there is above-mentioned cooperation cell, is then sent the CoMP abort message to this residential quarter, and deletes this residential quarter from the cooperation cell set.
For achieving the above object, according to another aspect of the present invention, a kind of system of cell resource scheduling is provided, comprise serving BS, cooperation functional entity, cooperative base station, wherein: serving BS, namely receive the base station of teleservice request, after being used for receiving service request, to measurement report or the cooperative multipoint transmission request of cooperation functional entity report of user terminal to each residential quarter in the measurement set of cells; Cooperation functional entity, be used for user terminal according to serving base stations report to measuring measurement report or the cooperative multipoint transmission request of each residential quarter in the set of cells, obtain the cooperation cell set that participates in the cooperative multipoint transmission business, according to the professional corresponding RAB information of cooperative multipoint transmission, set up cooperative base station to the RAB of cooperative multipoint transmission business, the indication cooperative base station is carried out access layer configuration according to RAB information, determine the professional corresponding wireless resource scheduling information of cooperative multipoint transmission, indication serving BS and cooperative base station are carried out the cooperative multipoint transmission business according to identical wireless resource scheduling information; Cooperative base station, namely the base station that belongs to of cooperation cell is used for according to RAB information, and RAB is carried out access layer configuration; According to wireless resource scheduling information, the cooperative multipoint transmission business is carried out in the assistance services base station.
Preferably, in the technical program, cooperation functional entity can be for one or more.
Preferably, in the technical program, cooperation functional entity can arrange separately or be positioned at serving BS.
The method of the cell resource scheduling of various embodiments of the present invention, cooperation functional entity and system, by increasing cooperation functional entity, to needing the synchronous of cooperation transmission data, disturb thereby reduce inter-cell user between the realization different base station residential quarter, improve wireless resource utility efficiency.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of writing, claims and accompanying drawing.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Accompanying drawing is used to provide a further understanding of the present invention, and consists of the part of specification, jointly is used for explaining the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram that the prior art Cell Edge User receives signal;
Fig. 2 is the flow chart of the embodiment of the invention one cell resource scheduling method;
Fig. 3 is the schematic diagram that the embodiment of the invention three Cell Edge User receive signal;
Fig. 4 is the flow chart that judges whether to send the CoMP business in the embodiment of the invention four cell resource scheduling methods;
Fig. 5 is the flow chart of the embodiment of the invention five cell resource scheduling methods;
Fig. 6 is the schematic diagram of the professional PDU synchronous transmission of the embodiment of the invention five cell resource scheduling method CoMP;
Fig. 7 is the schematic diagram of the cooperation functional entity (CCE entity) of the embodiment of the invention six cell resource schedulings;
Fig. 8 is the logical architecture schematic diagram of the embodiment of the invention six residential quarters and CCE entity;
Fig. 9 is the schematic diagram of C2 interface between the cooperation functional entity in the cooperation functional entity of the embodiment of the invention six cell resource schedulings.
Mark the following drawings mark thereon by reference to the accompanying drawings:
602-selects module; Module is set up in the 604-carrying;
606-access layer configuration module; The 608-scheduler module;
610-first interface module; 612-Radio Resource Coordination module;
614-the second interface module.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described, should be appreciated that embodiment described herein only is used for description and interpretation the present invention, is not intended to limit the present invention.
Embodiment one
The CoMP technology can not be supported in the different base station minizone of existing 2G, 3G system, can't realize the Resource co-allocation of a plurality of minizones control plane, the identical configuration of higher-layer protocols, and data synchronous transmission and the processing of user plane, can not improve the service experience of Cell Edge User.
The present invention is based on the standardization effort of mobile communication system development and performing coordinated scheduling technology, in conjunction with existing system to CoMP function and mechanism, comprise performing coordinated scheduling mechanism, the design of upper-layer protocol control signal and based on the present situation of the aspect vacancies such as protocol stack arrangement of CoMP, the cooperative scheduling entity (CoMP Coordination Entity is called for short the CCE entity) of the CoMP business between different base station that realizes has creatively been proposed.Fig. 2 is the flow chart of the embodiment of the invention one cell resource scheduling method.As shown in Figure 2, present embodiment comprises:
Step S102: the user terminal that reports according to Serving cell obtains the cooperation cell set of CoMP participating business to measuring measurement report or the CoMP service request of each residential quarter in the set of cells;
Step S104: according to the professional corresponding RAB information of CoMP, set up cooperation cell to the RAB of CoMP business;
Step S106: the indication cooperation cell is carried out access layer configuration according to RAB information;
Step S108: determine the wireless resource scheduling information that CoMP is professional corresponding, indication Serving cell and cooperation cell are carried out the CoMP business according to identical wireless resource scheduling information.
In the present embodiment, step S102～S108 can be undertaken by newly-increased CCE entity.This entity is a logic entity, and its physics realization mode can be positioned at inside of base station, also can be separately as a network element setting.Wherein, the CCE entity just is engaged in the function of control plane, does not need to participate in the transmission of datum plane.
Among present embodiment and following each embodiment, the CoMP business refers to belong to different base station, and the cooperative multipoint transmission between residential quarter and the residential quarter is professional, for example: professional at the required high speed Internet access that carries out of the UE of two residential quarter intersections.Serving cell is the residential quarter of the practical business request of reception UE, and cooperation cell is the residential quarter that above-mentioned business is carried out in the assistance services residential quarter, and cooperation cell can be for one or more.
Among present embodiment and following each embodiment, for unified with respective standard, adopt the expression method of " Serving cell " and " cooperation cell ", real system is in service, and " Serving cell " and " cooperation cell " should correspond respectively to " serving BS " and " cooperative base station ".The Signalling exchange of residential quarter and CCE entity is actually base station that the residential quarter belongs to and the Signalling exchange of CCE entity; The RAB of the CoMP business of setting up at cooperation cell or Serving cell is actually corresponding base station and sets up RAB to the CoMP business.The result that the indication cooperation cell is carried out access layer configuration according to RAB information is: serving BS and the result of cooperative base station to the identical access layer configuration of the professional final formation of this CoMP namely are implemented in the identical data of transmission on the identical running time-frequency resource.
In the present embodiment, determine the step of RAB information and wireless resource scheduling information, can be arranged at other suitable positions in the flow process, as long as thought according to the invention should be included within protection scope of the present invention equally.
Present embodiment has been realized the cooperative base station of carrying out the CoMP business has been carried out identical access layer configuration with serving BS, and based on identical resource scheduling information, between the different base station residential quarter data that need cooperation transmission have been realized synchronously, disturb thereby reduce inter-cell user, improve wireless resource utility efficiency.
Embodiment two
Wireless resource scheduling information comprises modulation coding information and running time-frequency resource information.In the present embodiment, determine that the professional corresponding wireless resource scheduling information of CoMP is: obtain Serving cell to the suggestion of wireless resource scheduling, and/or measure Radio Resource operating position, the loading condition of each residential quarter in the set of cells; According to the suggestion of Serving cell to wireless resource scheduling, and/or Radio Resource operating position, the loading condition of interior each residential quarter of measurement set of cells, determine the professional corresponding wireless resource scheduling information of CoMP.
In the present embodiment, measure Radio Resource operating position, the loading condition of each residential quarter in the set of cells, Serving cell need to be sent to the CCE entity in advance to the suggestion of wireless resource scheduling.
Present embodiment is illustrated particular content and the acquisition methods of wireless resource scheduling information, have whole beneficial effects of embodiment one, and exploitativeness is stronger.
Embodiment three
In the present embodiment, RAB information comprises: radio bearer sign, i.e. E-RAB ID; The transport layer address; The professional corresponding QoS information of CoMP; UE supports maximum bit rate; The ID of the S1 Application Part agreement of the UE of MME storage, i.e. MME UE S1AP ID; The ID of the S1 Application Part agreement of the UE of eNB storage, i.e. eNB UE S1AP ID; The configuration information that SRB and/or DRB etc. are relevant with setting up radio bearer.Wherein, the step that the indication cooperation cell is carried out access layer configuration according to RAB information specifically comprises: the indication cooperation cell is carried out the protocol configuration of PDCP layer, rlc layer and MAC layer according to above-mentioned radio bearer information, and/or carries out the protocol configuration of Signaling Radio Bearer and Data Radio Bearer.In addition, above-mentioned RAB information can not guarantee necessarily all can dispose, and in actual environment, the viewing system situation may be to carry out corresponding access layer configuration for a part of information wherein.
In the prior art, be responsible for setting up RAB by mobile management entity (Mobile Management Entity is called for short MME).For being complementary with prior art, the CCE entity can be set up cooperation cell to the RAB of CoMP business by MME.In addition, the CCE entity also can directly be set up cooperation cell to the RAB of CoMP business.Foundation specifically comprises the step of the RAB of CoMP service request: send RAB to cooperation cell and set up request, set up the information that radio bearer needs with cooperation cell in this message, comprise the radio bearer sign, be E-RAB ID, the transport layer address, the QoS information of CoMP business, UE supports maximum bit rate, MME UE S1AP ID, and/or eNB UE S1AP ID; Cooperation cell is set up according to RAB and is asked to set up RAB, and postbacks RAB foundation response.
In the present embodiment, if the access layer configuration of Serving cell and RAB information are not mated, can also comprise after setting up the step of cooperation cell to RAB corresponding to CoMP service request: set up Serving cell to the RAB of CoMP business; The indication Serving cell carries out access layer configuration according to RAB information.In addition, the step that the step that Serving cell and cooperation cell are carried out access layer configuration not necessarily must limit according to present embodiment also can be carried out, simultaneously as long as thought according to the invention should be included within protection scope of the present invention equally.
The CCE entity directly or by MME is configured the Access Layer of Serving cell and cooperation cell, and concrete access layer configuration information is as follows: 1. PDCP layer configuration; 2. rlc layer configuration; 3. MAC layer configuration.
Among present embodiment and following each embodiment, Serving cell and cooperation cell are the residential quarter of adhering to different base station separately, and the Access Layer of residential quarter is configured, and be actually corresponding base station is carried out access layer configuration.
Fig. 3 is the schematic diagram that the embodiment of the invention three Cell Edge User receive signal.Get up by the CCE entity relationship in base station 1 and base station 2, neighbor cell carries out the CoMP business for the client of cell edge, and by Fig. 1 and Fig. 3 contrast as can be known, noise signal originally changes useful signal into, and the signal of user terminal is played humidification.Present embodiment has been described in detail the foundation of RAB and the configuration of Access Layer, based on the advantage of CoMP business realize between a plurality of residential quarters to need the cooperation transmission data synchronously, reduce inter-cell user and disturb, improve wireless resource utility efficiency.
Embodiment four
Among the present invention, before carrying out cell resource scheduling, need to analyze the concrete state of user terminal, judge whether it needs to carry out the CoMP business.For example, when user terminal is positioned at the intersection of two base station cells, the dtr signal of Serving cell is lower than certain predetermined threshold value, just need to carry out the CoMP business.Fig. 4 is the flow chart that judges whether to carry out the CoMP business in the embodiment of the invention four cell resource scheduling methods.As shown in Figure 4, present embodiment comprises:
Step S402: after Serving cell receives service request, obtain user terminal to measuring the measurement report of each residential quarter in the set of cells;
Step S404: according to measurement report and preset configuration, judge whether to carry out the CoMP business, in this way, execution in step S406, otherwise, execution in step S412;
Step S406: according to measurement report, generate alternative cooperation cell set, send the CoMP service request to the CCE entity, comprise the set of measurement report and alternative cooperation cell in the CoMP service request;
The CoMP service request that step S408:CCE entity reports according to Serving cell sends the professional inquiry of CoMP to alternative cooperation cell;
Step S410: according to the response of alternative cooperation cell to the professional inquiry of CoMP, obtain the cooperation cell set of CoMP participating business, flow process finishes;
Step S412: carry out separately business by Serving cell, flow process finishes.
Behind the present embodiment step S410, carry out the operation of step S104～step S108 among the embodiment one, carry out the CoMP business.In the present embodiment, step S402～step S406 is carried out by Serving cell, and step S408～step S412 is undertaken by the CCE entity.Before the step S408, the CCE entity can also comprise the step that the CoMP service request is verified, if agree, and execution in step S408～step S412 then, otherwise, the CoMP service request of denial of service residential quarter.
In addition, step S404～step S406 also can be undertaken by the CCE entity, be that Serving cell directly is forwarded to the CCE entity with user terminal to the measurement report of measuring each residential quarter in the set of cells, whether carry out the judgement of CoMP business by the CCE entity, and the step of alternative cooperation cell set generation.As long as thought according to the invention is included within protection scope of the present invention equally.
In the present embodiment, the broadcast that user terminal receives each residential quarter obtains the set of cells that need to measure, measures the signal strength signal intensity of each residential quarter, generates measurement report, and measurement report reported to Serving cell, Serving cell judges whether that according to measurement report needs carry out the CoMP business.After Serving cell and cooperation cell are carried out the CoMP business, the CCE entity can periodically obtain the measurement report of user terminal from Serving cell, according to up-to-date measurement report and preset configuration, judge whether to exist the cooperation cell that does not meet CoMP participating professional qualification, the rapid variation of the signal of this cooperation cell for example, if exist, then send CoMP suspension of service message to this cooperation cell, and from the cooperation cell set, delete this residential quarter.According to up-to-date measurement report and preset configuration, the CCE entity judges also whether the CoMP business continues, if it is unnecessary that carry out the CoMP business this moment, for example the user terminal business of carrying out is undertaken satisfying business need by Serving cell, then the CCE entity is to the message of the cooperation cell transmission CoMP suspension of service, and cooperation cell discharges the Radio Resource carrying according to the message of the CoMP suspension of service, and postback CoMP suspension of service response, carry out separately business by Serving cell.Its realization flow and Fig. 4 are similar, no longer repeat herein.
Present embodiment judges whether to carry out the CoMP business according to measurement report and the preset configuration of user terminal, and in conjunction with preset configuration, determines the residential quarter of CoMP participating business on the basis of embodiment one.Present embodiment has whole beneficial effects of embodiment one, no longer repeats herein, in addition, and the technical scheme of embodiment one that present embodiment is perfect, and exploitativeness is stronger.
Embodiment five
Present embodiment will carry out combination and refinement to the step of the various embodiments described above, and cell resource scheduling method of the present invention is elaborated.Fig. 5 is the flow chart of the embodiment of the invention five cell resource scheduling methods.As shown in Figure 5, eNB1 is the base station that Serving cell belongs to, and eNB2 is the base station that cooperation cell belongs to.Present embodiment comprises:
Step S502: after receiving service request, the base station eNB 1 that Serving cell belongs to is obtained user terminal to measuring the measurement report of each residential quarter in the set of cells;
Step S504: according to measurement report and preset configuration, judge whether to carry out the CoMP business, in this way, execution in step S506; Otherwise, carry out separately above-mentioned business by eNB1, flow process finishes;
Step S506: according to measurement report, generate alternative cooperation cell set;
Step S508: send the CoMP service request to the CCE entity, comprise the set of measurement report and alternative cooperation cell in the CoMP service request;
Step S510:CCE entity is verified the CoMP service request, if agree to carry out CoMP business, then execution in step S512; Otherwise the CoMP service request of refusal eNB1 is carried out separately above-mentioned business by eNB1, and flow process finishes;
The CoMP service request that step S512:CCE entity reports according to eNB1 sends the professional inquiry of CoMP to alternative cooperation cell;
Step S514: carry out CoMP and process if cooperation cell is agreed cooperation, then postback the CoMP inquiry response messages; If cooperation cell is disagreed with cooperation and is carried out CoMP and process, then send the CoMP failure response, the CCE entity is this residential quarter of deletion from alternative cooperation cell set, namely according to the response of alternative cooperation cell to the professional inquiry of CoMP, obtain the cooperation cell set of CoMP participating business, herein, take eNB2 as base station that cooperation cell was belonged to as example;
Step S516: determine the professional corresponding RAB information of CoMP, RAB information comprises the radio bearer sign, be E-RAB ID, the transport layer address, CoMP QoS of survice information, UE supports maximum bit rate, MME UE S1AP ID, eNB UES1AP ID, the configuration informations relevant with setting up radio bearer such as SRB and/or DRB;
Step S518:CCE entity sends E-RAB to eNB2 and sets up request according to agreement setting and the treatment mechanism of CoMP Business Processing, for the CoMP business is set up the E-RAB carrying; Can be that the CoMP business is set up the E-RAB carrying at eNB2 by MME by the CCE entity also;
Step S520:eNB2 sends E-RAB to the CCE entity and sets up response;
Step S522: send RAB information to eNB2, indicate it to carry out the protocol configuration of corresponding PDCP layer, rlc layer and MAC layer according to RAB information;
Step S524:CCE entity obtains Radio Resource operating position, loading condition and/or the resource report of measuring each residential quarter in the set of cells; According to Radio Resource operating position, loading condition and/or the resource report of each residential quarter, determine CoMP professional corresponding running time-frequency resource information and modulation coding mode information;
Step S526:CCE entity is sent to eNB1 and eNB2 with running time-frequency resource information and modulation coding mode information,
Step S528:eNB1 and eNB2 carry out the CoMP business according to above-mentioned running time-frequency resource information and modulation coding mode information;
Step S530: carry out in the process in the CoMP business, eNB1 obtains user terminal at any time to the measurement report of each residential quarter in the measurement set of cells, and sends measurement report to the CCE entity;
Step S532:CCE entity is according to measurement report and preset configuration, judge the cooperation cell that whether has the condition that does not meet the CoMP participating Business Processing in the cooperation cell set, if exist, then send CoMP suspension of service message to this cooperation cell, and from the cooperation cell set, delete this residential quarter, namely dynamically adjust the cooperation cell set;
Step S534:CCE entity judges whether to proceed the CoMP business according to measurement report and preset configuration, in this way, and execution in step S528; Otherwise, execution in step S536;
Step S536: to the message that eNB2 sends the CoMP suspension of service, indicate eNB2 to stop the CoMP business; And indication eNB1 carries out separately above-mentioned business, the flow process end.
Among present embodiment step S516～S522, when the access layer configuration of service cell eNB 1 and RAB information are not mated, the CCE entity is set up eNB1 to the RAB of CoMP business, and indication eNB1 carries out access layer configuration according to RAB information, with identical at embodiment three, no longer repeat herein.In the present embodiment, there is the situation of a plurality of cooperation cell similarly, no longer repeats herein.
In the present embodiment, the CCE entity is after the cell configuration of CoMP participating business has been got well E-RAB carrying and Access Layer agreement, each cooperation cell just can be carried out the CoMP business according to running time-frequency resource information and modulation coding mode information, suppose by the S1-U/X2-U interface and carry out k protocol Data Unit of inter-cell user data (Protocol Data Unit, abbreviation PDU) transmission then constantly can be according to the time t of this packet arrival for the scheduling of k data PDU
k Rx, the scheduling interval that scheduling strategy determines, the interface transmission time is T
Delay, and the size of professional service speed, packet can obtain CoMP PDU and can be simultaneously submits or carry out the time t that the backward MAC layer of cascade is submitted to the MAC layer
k Tx, at last MAC PDU is mapped to physical layer resources after physical layer process and carries out synchronous transmission.Fig. 6 is the schematic diagram of the professional PDU synchronous transmission of the embodiment of the invention five local resource method dispatching method CoMP.As shown in Figure 6, packet P1 and P2 are less, transmit after the cascade; Packet P3 is larger, directly transmits.Serving cell transmits identical data with cooperation cell by CoMP is professional, thereby improves the signal quality that user terminal is received.
Technical scheme that present embodiment is further perfect is carried out identical access layer configuration to Serving cell and cooperation cell and is come the transmission of data.Present embodiment has proposed the local resource collocation method based on performing coordinated scheduling, proposed to realize the control signal design of minizone cooperation transmission, make communication system can effective support CoMP professional, can be so that the synchronous transmission of performing coordinated scheduling and data can be finished by relevant interface and agreement in the minizone, effectively reduce inter-cell user and disturb, improve allocative efficiency and the utilance of Radio Resource.
Embodiment six
Present embodiment discloses a kind of cooperation functional entity of cell resource scheduling, i.e. the CCE entity.Its function comprises: the Radio Resource of 1. being responsible between each residential quarter is coordinated and management function, realize that each residential quarter adopts identical processing scheme to the distribution aspect of the E-RAB foundation of radio bearer, Access Layer protocol configuration, running time-frequency resource, to realize the synchronous transmission of CoMP data; 2. be responsible for foundation, process signalling, the end operation of the cooperation transmission CoMP process of minizone, comprise the control plane communication signaling of coordinating between each cooperation cell, set up each cooperation cell the E-RAB of UE is set up process; 3. be responsible for CoMP participating transfer of data user and match strategy, federated resource scheduling strategy, comprise physical layer running time-frequency resource information, modulation coding mode.
Fig. 7 is the schematic diagram of the cooperation functional entity of the embodiment of the invention six cell resource schedulings.As shown in Figure 7, present embodiment comprises: select module 602, the user terminal that is used for reporting according to Serving cell obtains the cooperation cell set of CoMP participating business to measuring measurement report or the CoMP service request of each residential quarter in the set of cells; Module 604 is set up in carrying, is used for the professional corresponding RAB information according to CoMP, sets up cooperation cell to the RAB of CoMP business; Access layer configuration module 606 is used to indicate cooperation cell and carries out access layer configuration according to RAB information; Scheduler module 608 be used for to be determined the professional corresponding wireless resource scheduling information of CoMP, and indication Serving cell and cooperation cell are carried out the CoMP business according to identical wireless resource scheduling information; First interface module 610 is used for the Signalling exchange between responsible cooperation functional entity and Serving cell, the cooperation cell.
Among present embodiment and following each embodiment, for unified with respective standard, adopt the expression method of " Serving cell " and " cooperation cell ", real system is in service, and " Serving cell " and " cooperation cell " should correspond respectively to " serving BS " and " cooperative base station ".The Signalling exchange of residential quarter and CCE entity is actually base station that the residential quarter belongs to and the Signalling exchange of cooperation functional entity; The RAB of the CoMP business of setting up at cooperation cell or Serving cell is actually corresponding base station and sets up RAB to the CoMP business.The result that the indication cooperation cell is carried out access layer configuration according to RAB information is: serving BS and the result of cooperative base station to the identical access layer configuration of the professional final formation of this CoMP namely are implemented in the identical data of transmission on the identical running time-frequency resource.
Fig. 8 is the logical architecture schematic diagram of the embodiment of the invention six residential quarters and CCE entity.As shown in Figure 8, communication interface-first interface module is set between CCE entity and each base station, it is the C1 interface, this interface is logic interfacing, be responsible for foundation, control and the end of each base station CoMP process, do not carry out the communication of CCE entity to the communication on cell data plane and CCE entity to UE.As logical functional entity, the CCE entity can be used as the independent network element setting of Access Network, also can be positioned at eNB or MME entity, under this network architecture, the C1 interface can utilize X2 interface or the S1 Interface realization in the existing LTE system, interface protocol can be X2-C or S1-C protocol, and application layer protocol can be X2AP or S1AP agreement, and host-host protocol can be Stream Control Transmission Protocol.The C1 interface is responsible for the relevant signalling of foundation, control and end of each residential quarter CoMP process, and specifically, the signaling of C1 interface transmission is:
1. E-RAB sets up relevant information;
2. UE contextual information;
3. radio-resource-configuration (Radio resource configuration);
4. access layer configuration information comprises: the configuration information of PDCP layer, rlc layer, MAC layer.
When existence belongs to same residential quarter under the control of different CCE entities and has participated in two or more CCE entities and carry out the cooperation transmission of data, the CCE entity of each control CoMP set need to communicate, alternately with coordination wireless resource scheduling information, so that this residential quarter uses different Radio Resources to carry out transfer of data for different CoMP set.In the present embodiment, as shown in Figure 7, the CCE entity can also comprise: Radio Resource Coordination module 612 is used for being responsible for the coordination of Radio Resource between this cooperation functional entity and other cooperation functional entities; The second interface module 614 is used for being responsible for Radio Resource and coordinates the mutual of signaling.The second interface module 614 is called for short the C2 interface, and the signaling of its transmission is: 1. CoMP Cooperating cell set list (cooperation cell aggregate list); 2. information of radio resource allocation (dispatching cycle, the PRB assignment information, MCS).Fig. 9 is the schematic diagram of C2 interface between the cooperation functional entity in the cooperation functional entity of the embodiment of the invention six cell resource schedulings.As shown in Figure 9, can in a plurality of CoMP cooperating set, carry out resource coordination by the C2 interface, avoid resource allocation conflict and interference.
In the present embodiment, RAB information comprises: radio bearer sign, i.e. E-RAB ID, the transport layer address, the QoS information of CoMP business, UE supports maximum bit rate, MME UE S1AP ID, eNB UE S1AP ID, the configuration informations relevant with setting up radio bearer such as SRB and/or DRB; Access Layer comprises PDCP layer, rlc layer, and the MAC layer.Wireless resource scheduling information comprises modulation coding information and running time-frequency resource information.
The method that present embodiment is realized can be with reference to the related description of implementing one, and have whole beneficial effects of embodiment one, no longer repeat herein, and increased by second interface module of carrying out the cell radio resource schedule information between the CCE entity, thereby further increased the practicality of present embodiment.
Embodiment seven
In the present embodiment, cooperation functional entity can also comprise: monitoring module is used for obtaining user terminal to measuring the measurement report of each residential quarter of set of cells; The first judge module according to measurement report and preset configuration, judges in the cooperation cell set whether have the residential quarter that does not meet CoMP participating professional qualification; The automatic update module of cooperation cell if there is above-mentioned cooperation cell, is then sent the CoMP abort message to this residential quarter, and deletes this residential quarter from the cooperation cell set.
In addition, cooperation functional entity can also comprise: the second judge module, be used for according to measurement report and preset configuration, and judge whether to proceed the CoMP business; End module, if not needing to proceed to be used for the CoMP business, it is professional that the indication cooperation cell is ended CoMP, carries out separately needed business by Serving cell.
In the present embodiment, scheduler module is responsible for determining wireless resource scheduling information, may further include: schedule information is obtained submodule, is used for obtaining Serving cell to the suggestion of wireless resource scheduling, and/or measures Radio Resource operating position, the loading condition of each residential quarter in the set of cells; Schedule information is determined submodule, is used for according to the suggestion of Serving cell to wireless resource scheduling, and/or measures Radio Resource operating position, loading condition and/or the resource report of each residential quarter in the set of cells, determines the professional corresponding wireless resource scheduling information of CoMP.
The method that present embodiment is realized can be with reference to the related description of implementing two, three, four, and has whole beneficial effects of above-described embodiment, no longer repeats herein.
Embodiment eight
Present embodiment provides a kind of system of cell resource scheduling, comprising: serving BS, cooperative base station and cooperation functional entity, wherein:
Serving BS namely receives the base station of teleservice request, after being used for receiving service request, to cooperation functional entity report of user terminal to measuring measurement report or the CoMP service request of each residential quarter in the set of cells;
Cooperation functional entity is used for user terminal according to serving base stations report to measuring measurement report or the CoMP service request of each residential quarter in the set of cells, obtains the cooperation cell set of CoMP participating business; According to the professional corresponding RAB information of CoMP, set up cooperative base station to the RAB of CoMP business; The indication cooperative base station is carried out access layer configuration according to RAB information; Determine the wireless resource scheduling information that CoMP is professional corresponding, indication serving BS and cooperative base station are carried out the CoMP business according to identical wireless resource scheduling information;
Cooperative base station, namely the base station that belongs to of cooperation cell is used for according to RAB information, and RAB is carried out access layer configuration; According to wireless resource scheduling information, the CoMP business is carried out in the assistance services base station.
In the present embodiment, cooperation functional entity further comprises: select module, be used for user terminal according to serving base stations report to measuring the CoMP service request of each residential quarter in the set of cells, obtain the cooperation cell set that participates in the cooperative multipoint transmission business; Module is set up in carrying, is used for the professional corresponding RAB information according to CoMP, sets up cooperative base station to the RAB of CoMP business; The access layer configuration module is used to indicate cooperative base station and carries out access layer configuration according to RAB information; Scheduler module be used for to be determined the professional corresponding wireless resource scheduling information of CoMP, and indication serving BS and cooperative base station are carried out the CoMP business according to identical wireless resource scheduling information; The first interface module is used for the Signalling exchange between responsible cooperation functional entity and Serving cell, the cooperation cell.
In the present embodiment, cooperation functional entity can also comprise: the Radio Resource Coordination module is used for being responsible for the coordination of Radio Resource between this cooperation functional entity and other cooperation functional entities; The second interface module is used for being responsible for Radio Resource and coordinates the mutual of signaling.
In the present embodiment, cooperation functional entity can be the cooperation functional entity among embodiment six or the embodiment seven.Cooperation cell can be for one or more, and cooperation functional entity also can be for one or more.Cooperation functional entity can arrange separately or be positioned at serving BS.The method that present embodiment is realized can be with reference to the related description of implementing four, five, and has whole beneficial effects of above-described embodiment, no longer repeats herein.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc, CD, network node, scheduler.
It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment the present invention is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (27)
1. the method for a cell resource scheduling is characterized in that, comprising:
The user terminal that reports according to Serving cell obtains the cooperation cell set that participates in the cooperative multipoint transmission business to measuring measurement report or the cooperative multipoint transmission request of each residential quarter in the set of cells;
According to the professional corresponding RAB information of described cooperative multipoint transmission, set up cooperation cell to the RAB of described cooperative multipoint transmission business;
Indicate described cooperation cell to carry out access layer configuration according to described RAB information;
Determine the professional corresponding wireless resource scheduling information of described cooperative multipoint transmission, indicate described Serving cell to carry out described cooperative multipoint transmission business with cooperation cell according to identical wireless resource scheduling information.
2. method according to claim 1 is characterized in that, described wireless resource scheduling information comprises modulation coding information and running time-frequency resource information.
3. method according to claim 2 is characterized in that, the step of the wireless resource scheduling information of the professional correspondence of described definite cooperative multipoint transmission specifically comprises:
Obtain described Serving cell to the suggestion of wireless resource scheduling, and/or Radio Resource operating position, the loading condition of interior each residential quarter of described measurement set of cells;
According to the suggestion of described Serving cell to wireless resource scheduling, and/or Radio Resource operating position, the loading condition of interior each residential quarter of described measurement set of cells, determine the professional corresponding wireless resource scheduling information of described cooperative multipoint transmission.
4. method according to claim 1, it is characterized in that, described RAB information comprises the radio bearer sign, the transport layer address, the QoS information of described cooperative multipoint transmission business, UE supports maximum bit rate, the ID MME UE S1AP ID of the S1 Application Part agreement of the UE of MME storage, and/or the ID eNB UES1AP ID of the S1 Application Part agreement of the UE of eNB storage;
The step that described indication cooperation cell is carried out access layer configuration according to RAB information specifically comprises: the indication cooperation cell is carried out the PDCP layer according to described radio bearer information, the protocol configuration of rlc layer and MAC layer.
5. method according to claim 4 is characterized in that, the step that described indication cooperation cell is carried out access layer configuration according to RAB information also comprises:
Indicate described cooperation cell to carry out the protocol configuration of Signaling Radio Bearer and/or Data Radio Bearer according to described RAB information.
6. each described method according to claim 1-5, it is characterized in that, the described user terminal that reports according to Serving cell is to measuring the measurement report of each residential quarter in the set of cells, and the step of obtaining the cooperation cell set that participates in the cooperative multipoint transmission business specifically comprises:
According to the measurement report that described Serving cell reports, judge whether to carry out the cooperative multipoint transmission business;
If need to carry out the cooperative multipoint transmission business, then according to described measurement report and preset configuration, obtain the alternative cooperation cell set that participates in the cooperative multipoint transmission business; Send the cooperative multipoint transmission inquiry to described alternative cooperation cell; According to the response of alternative cooperation cell to described cooperative multipoint transmission inquiry, obtain the cooperation cell set that participates in the cooperative multipoint transmission business;
If do not need to carry out the cooperative multipoint transmission business, then send the message that does not need to carry out the cooperative multipoint transmission business to Serving cell.
7. each described method is characterized in that according to claim 1-5, the described cooperative multipoint transmission request that reports according to Serving cell, and the step of obtaining the cooperation cell set that participates in the cooperative multipoint transmission business also comprises before:
After Serving cell receives service request, obtain user terminal to measuring the measurement report of each residential quarter in the set of cells; According to described measurement report and preset configuration, judge whether to carry out the cooperative multipoint transmission business;
If need to carry out the cooperative multipoint transmission business, then according to described measurement report, generate alternative cooperation cell set, send the cooperative multipoint transmission request, comprise the information of described alternative cooperation cell set in the described cooperative multipoint transmission request; If do not need to carry out the cooperative multipoint transmission business, then described Serving cell carries out separately described business;
If need to carry out the cooperative multipoint transmission business, the then described cooperative multipoint transmission request that reports according to Serving cell, the step of obtaining the cooperation cell set that participates in described cooperative multipoint transmission business specifically comprises: the cooperative multipoint transmission request according to Serving cell reports sends the cooperative multipoint transmission inquiry to alternative cooperation cell; According to the response of alternative cooperation cell to described cooperative multipoint transmission inquiry, obtain the cooperation cell set that participates in the cooperative multipoint transmission business.
8. each described method according to claim 1-5, it is characterized in that, if the access layer configuration of described Serving cell and described RAB information are not mated, the described cooperation cell of setting up also comprises after the step of the RAB of cooperative multipoint transmission business:
Set up Serving cell to the RAB of cooperative multipoint transmission business;
Indicate described Serving cell to carry out access layer configuration according to described RAB information.
9. each described method is characterized in that according to claim 1-5, and the described cooperation cell of setting up specifically comprises the step of the RAB of described cooperative multipoint transmission business:
Directly set up cooperation cell to the RAB of described cooperative multipoint transmission business;
Or set up cooperation cell to the RAB of described cooperative multipoint transmission business by mobile management entity.
10. method according to claim 1 is characterized in that, the described cooperation cell of setting up specifically comprises the step of the RAB of described cooperative multipoint transmission business:
Send RAB to cooperation cell and set up request;
Described cooperation cell is set up according to described RAB and is asked to set up RAB, and postbacks RAB foundation response.
11. each described method is characterized in that according to claim 1-5, described indication Serving cell and cooperation cell be according to identical wireless resource scheduling information, carries out also comprising after the step of cooperative multipoint transmission business:
Obtain user terminal to measuring the measurement report of each residential quarter in the set of cells;
According to described measurement report and preset configuration, judge whether to exist in the cooperation cell set not meet the cooperation cell that participates in cooperative multipoint transmission professional qualification;
If exist, then send the cooperative multipoint transmission abort message to this cooperation cell, and from the cooperation cell set, delete this residential quarter.
12. each described method is characterized in that according to claim 1-5, described indication Serving cell and cooperation cell be according to identical wireless resource scheduling information, carries out also comprising after the step of cooperative multipoint transmission business:
Obtain user terminal to measuring the measurement report of each residential quarter in the set of cells;
According to described measurement report and preset configuration, judge whether to proceed the cooperative multipoint transmission business;
If do not need to proceed cooperative multipoint transmission, send the cooperative multipoint transmission abort message to cooperation cell;
The message that cooperation cell is ended according to described cooperative multipoint transmission discharges the Radio Resource carrying, and postbacks cooperative multipoint transmission termination response.
13. each described method is characterized in that according to claim 1-5, described cooperative multipoint transmission is professional to be to belong to different base station, and the cooperative multipoint transmission between residential quarter and the residential quarter is professional.
14. each described method is characterized in that according to claim 1-5, described cooperation cell is one or more.
15. the cooperation functional entity of a cell resource scheduling is characterized in that, comprising:
Select module, the user terminal that is used for reporting according to Serving cell obtains the cooperation cell set that participates in the cooperative multipoint transmission business to measuring measurement report or the cooperative multipoint transmission request of each residential quarter in the set of cells;
Module is set up in carrying, is used for setting up described cooperation cell to the RAB of described cooperative multipoint transmission business according to the professional corresponding RAB information of described cooperative multipoint transmission;
The access layer configuration module is used to indicate described cooperation cell and carries out access layer configuration according to described RAB information;
Scheduler module be used for to be determined the professional corresponding wireless resource scheduling information of described cooperative multipoint transmission, indicates described Serving cell and cooperation cell according to identical wireless resource scheduling information, and it is professional to carry out described cooperative multipoint transmission;
The first interface module is used for the Signalling exchange between responsible described cooperation functional entity and Serving cell, the cooperation cell.
16. cooperation functional entity according to claim 15 is characterized in that, also comprises:
The Radio Resource Coordination module is used for being responsible for the coordination of Radio Resource between this cooperation functional entity and other cooperation functional entities;
The second interface module is used for being responsible for described Radio Resource and coordinates the mutual of signaling.
17. according to claim 15 or 16 described cooperation functional entities, it is characterized in that described wireless resource scheduling information comprises modulation coding information and running time-frequency resource information.
18. cooperation functional entity according to claim 17 is characterized in that, described scheduler module further comprises:
Schedule information is obtained submodule, is used for obtaining described Serving cell to the suggestion of wireless resource scheduling, and/or Radio Resource operating position, the loading condition of interior each residential quarter of described measurement set of cells;
Schedule information is determined submodule, be used for according to the suggestion of described Serving cell to wireless resource scheduling, and/or Radio Resource operating position, the loading condition of interior each residential quarter of described measurement set of cells, determine the professional corresponding wireless resource scheduling information of described cooperative multipoint transmission.
19. according to claim 15 or 16 described cooperation functional entities, it is characterized in that,
Described RAB information specifically comprises: the radio bearer sign, the transport layer address, the QoS information of described cooperative multipoint transmission business, UE supports maximum bit rate, the ID MME UE S1AP ID of the S1 Application Part agreement of the UE of MME storage, and/or the ID eNB UE S1AP ID of the S1 Application Part agreement of the UE of eNB storage;
Described access layer configuration specifically comprises: the protocol configuration of PDCP layer, rlc layer and MAC layer.
20. according to claim 15 or 16 described cooperation functional entities, it is characterized in that, also comprise:
Monitoring module is used for obtaining user terminal to measuring the measurement report of each residential quarter of set of cells;
Whether the first judge module according to described measurement report and preset configuration, is judged to exist in the cooperation cell set not meet the cooperation cell that participates in cooperative multipoint transmission professional qualification;
The automatic update module of cooperation cell if there is above-mentioned cooperation cell, is then sent the cooperative multipoint transmission abort message to this residential quarter, and deletes this residential quarter from the cooperation cell set.
21. cooperation functional entity according to claim 20 is characterized in that, also comprises:
The second judge module is used for according to described measurement report and preset configuration, judges whether to proceed the cooperative multipoint transmission business;
End module, if not needing to proceed to be used for the cooperative multipoint transmission business, it is professional that the indication cooperation cell is ended cooperative multipoint transmission.
22. the system of a cell resource scheduling is characterized in that, comprises serving BS, cooperation functional entity, and cooperative base station, wherein:
Described serving BS namely receives the base station of teleservice request, after being used for receiving service request, to cooperation functional entity report of user terminal to measuring measurement report or the cooperative multipoint transmission request of each residential quarter in the set of cells;
Described cooperation functional entity is used for user terminal according to serving base stations report to measuring measurement report or the cooperative multipoint transmission request of each residential quarter in the set of cells, obtains the cooperation cell set that participates in the cooperative multipoint transmission business; According to the professional corresponding RAB information of described cooperative multipoint transmission, set up cooperative base station to the RAB of described cooperative multipoint transmission business; Indicate described cooperative base station to carry out access layer configuration according to described RAB information; Determine the professional corresponding wireless resource scheduling information of described cooperative multipoint transmission, indicate described serving BS and cooperative base station according to identical wireless resource scheduling information, it is professional to carry out described cooperative multipoint transmission;
Described cooperative base station, namely the base station that belongs to of cooperation cell is used for according to described RAB information, and described RAB is carried out access layer configuration; According to described wireless resource scheduling information, assist described serving BS to carry out described cooperative multipoint transmission business.
23. system according to claim 22 is characterized in that, described cooperation functional entity further comprises:
Select module, be used for user terminal according to serving base stations report to measuring measurement report or the cooperative multipoint transmission request of each residential quarter in the set of cells, obtain the cooperation cell set that participates in the cooperative multipoint transmission business;
Module is set up in carrying, is used for setting up cooperative base station to the RAB of described cooperative multipoint transmission business according to the professional corresponding RAB information of described cooperative multipoint transmission;
The access layer configuration module is used to indicate described cooperative base station and carries out access layer configuration according to described RAB information;
Scheduler module be used for to be determined the professional corresponding wireless resource scheduling information of described cooperative multipoint transmission, indicates described serving BS and cooperative base station according to identical wireless resource scheduling information, and it is professional to carry out described cooperative multipoint transmission;
The first interface module is used for the Signalling exchange between responsible described cooperation functional entity and serving BS, the cooperative base station.
24. according to claim 22 or 23 described systems, it is characterized in that, also comprise:
The Radio Resource Coordination module is used for being responsible for the coordination of Radio Resource between this cooperation functional entity and other cooperation functional entities;
The second interface module is used for being responsible for described Radio Resource and coordinates the mutual of signaling.
25. according to claim 22 or 23 described systems, it is characterized in that described cooperative base station is one or more.
26. according to claim 22 or 23 described systems, it is characterized in that described cooperation functional entity is one or more.
27. according to claim 22 or 23 described systems, it is characterized in that described cooperation functional entity is for arranging separately or being positioned at serving BS.
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| CN110062429B (en) | 2012-08-23 | 2021-11-26 | 交互数字专利控股公司 | Operating with multiple schedulers in a wireless system |
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