CN107046703A - Connection control method and base station - Google Patents

Abstract

The invention discloses a kind of connection control method and base station, belong to communication technical field.This method includes：Receive the service access request that user equipment (UE) is sent to serving BS, response service access request judges whether the available resources of serving BS, the available resources of at least one cooperative base station meet one in default one or more cooperation conditions, each cooperation condition one cooperation transmission mode of correspondence, if it is determined that meeting a cooperation condition, then according to the corresponding cooperation transmission mode of a cooperation condition of satisfaction, control UE access services base station and at least one cooperative base station.The present invention for different cooperation transmission modes by providing corresponding cooperation condition, when serving BS and the available resources of at least one cooperative base station meet the corresponding cooperation condition of any cooperation transmission mode, UE access services base station and at least one cooperative base station could be controlled according to corresponding cooperation transmission mode, the accuracy rate of Access Control is improved, the blocking rate of Access Control is reduced.

Description

Connection control method and base station

Technical field

The present invention relates to communication technical field, more particularly to a kind of connection control method and base station.

Background technology

With continuing to develop for wireless network, the trend that network-intensiveization has developed as wireless network, and net Network densification can cause there is substantial amounts of overlapping region between the overlay area of different base station, work as user equipment When (User Equipment, abbreviation UE) is in these overlapping regions, it is possible to pass through multicast communication technology Access current serving BS and at least one cooperative base station simultaneously so that multiple base station collaborations provide clothes for UE Business.Multicast communication technology includes multiple cooperative transmission mode, under different cooperation transmission modes, services base Stand, the available resources of cooperative base station and the resource needed for UE have differences.In consideration of it, to transfer resource Judgement directly influences the accuracy and blocking rate of UE Access Controls, and judged result is inaccurate to cause access The accuracy reduction of control and blocking rate are improved.

The content of the invention

In order to solve problem of the prior art, the embodiments of the invention provide a kind of connection control method and base station, Resource can be reasonably distributed for different cooperation transmission modes, the accuracy of Access Control, reduction is improved The blocking rate of Access Control.The technical scheme is as follows：

In a first aspect, the embodiments of the invention provide a kind of connection control method, methods described includes：

Receive the service access request that user equipment (UE) is sent to serving BS；

Response service access request judges available resources, the available money of at least one cooperative base station of serving BS Whether source meets one in default one or more cooperation conditions, and each cooperation condition correspondence one is used for Control the cooperation transmission mode of UE accesses；

If it is determined that the available resources of serving BS, the available resources of at least one cooperative base station meet an association Make condition, then according to the corresponding cooperation transmission mode of a cooperation condition of satisfaction, control UE access service bases Stand and at least one cooperative base station.

The cooperation condition different by providing, and each cooperation condition one cooperation transmission mode of correspondence, work as clothes , could be according to the cooperation when available resources of business base station and at least one cooperative base station meet any cooperation condition The corresponding cooperation transmission mode control UE access services base station of condition and at least one cooperative base station, improve and connect Enter the accuracy rate of control, reduce the blocking rate of Access Control.

In a kind of possible design, service access request at least includes the targeted rate needed for UE, the association Making transmission mode includes dual link transmission mode, and the corresponding cooperation condition of dual link transmission mode is serving BS The second speed sum that the first rate that can be provided for UE can be provided with least one cooperative base station for UE Not less than the targeted rate needed for UE.Available resource block number of the first rate according to serving BS, resource block SINR between size and UE and serving BS is obtained, and the second speed is according at least one cooperative base station Available resource block number, resource block size and UE and the SINR of at least one cooperative base station are obtained.

In a kind of possible design, according to the available resource block number of serving BS, resource block size and SINR between UE and serving BS, calculates the first rate that serving BS can provide for UE；For Each cooperative base station, according to available resource block number, resource block size and UE and the base that cooperates of cooperative base station SINR between standing, calculates the second speed that cooperative base station can provide for UE；Judge first rate and Whether two speed sums are not less than targeted rate.

By providing dual link transmission mode corresponding cooperation condition, available resources when serving BS, at least When the available resources of one cooperative base station meet the cooperation condition, control UE is accessed using dual link transmission mode Serving BS and cooperative base station, and be unsatisfactory for that UE will not be controlled to use dual link transmission mode during the cooperation condition Access service base station and cooperative base station, improve the accuracy rate of UE access services base station and cooperative base station, reduction The blocking rate of Access Control.

In a kind of possible design, service access request at least includes the targeted rate needed for UE, and cooperation is passed Defeated pattern includes dual link transmission mode, and the corresponding cooperation condition of dual link transmission mode cooperates at least one The available resource block number of base station is not less than the resource block number that at least one cooperative base station needs to provide；At least One cooperative base station needs the 3rd speed that the resource block number provided needs to provide according at least one cooperative base station SINR between rate, resource block size and UE and at least one cooperative base station is obtained；Third speed according to Difference between the fourth rate that the targeted rate and serving BS that UE needs can provide for UE is obtained；The Between available resource block number, resource block size and UE and serving BS of four speed according to serving BS SINR is obtained.

In a kind of possible design, according to the available resource block number of serving BS, resource block size and SINR between UE and serving BS, calculates the fourth rate that serving BS can provide for UE；Calculate Difference between targeted rate and fourth rate, the third speed for needing to provide as cooperative base station；For pre- The each cooperative base station first determined, according between third speed, resource block size and UE and cooperative base station SINR, calculates the resource block number that cooperative base station needs to provide；Judge the available resource block number of cooperative base station Whether the resource block number of offer is needed not less than cooperative base station.

By providing dual link transmission mode corresponding cooperation condition, available resources when serving BS, at least When the available resources of one cooperative base station meet the cooperation condition, control UE is accessed using dual link transmission mode Serving BS and cooperative base station, and be unsatisfactory for that UE will not be controlled to use dual link transmission mode during the cooperation condition Access service base station and cooperative base station, improve the accuracy rate of UE access services base station and cooperative base station, reduction The blocking rate of Access Control.

In a kind of possible design, service access request at least includes the targeted rate needed for UE, and cooperation is passed Defeated pattern includes cooperative scheduling/cooperative beam figuration CS/CB transmission modes, the corresponding association of CS/CB transmission modes Make condition for the target resource block number mesh needed for the available resource block number of serving BS is not less than UE；UE institutes Targeted rate, the resource block size of serving BS and CS/CB of the target resource block number mesh needed according to needed for UE SINR under transmission mode between UE and serving BS is obtained.

In a kind of possible design, the resource block size of targeted rate, serving BS according to needed for UE with And the SINR under CS/CB transmission modes between UE and serving BS, calculate the target resource block needed for UE Number；Obtain the available resource block number of serving BS；Judge serving BS available resource block number whether Not less than target resource block number mesh.

By providing CS/CB transmission modes corresponding cooperation condition, available resources when serving BS, at least When the available resources of one cooperative base station meet the cooperation condition, control UE is connect using CS/CB transmission modes Enter serving BS, and be unsatisfactory for that UE will not be controlled to access clothes using CS/CB transmission modes during the cooperation condition It is engaged in base station, improving the accuracy rate of UE access services base station, reducing the blocking rate of Access Control.

In a kind of possible design, service access request at least includes the targeted rate needed for UE, and cooperation is passed Defeated pattern includes joint transmission pattern, and the corresponding cooperation condition of joint transmission pattern is the available money of serving BS Source block number is not less than the target resource block number mesh needed for UE, and the available resource block of at least one cooperative base station Number is not less than the target resource block number mesh needed for UE；Target resource block number mesh needed for UE is according to UE institutes SINR between the targeted rate, the resource block size of serving BS and UE and the serving BS that need is obtained.

In a kind of possible design, the resource block size of targeted rate, serving BS according to needed for UE with And the SINR between UE and serving BS, calculate the target resource block number mesh needed for UE；Obtain service base The available resource block number stood；For each cooperative base station, the available resource block number of cooperative base station is obtained； Judge that whether the available resource block number of serving BS is not less than target resource block number mesh, and judge cooperative base station Available resource block number whether be not less than target resource block number mesh.

By providing joint transmission pattern corresponding cooperation condition, available resources when serving BS, at least one When the available resources of individual cooperative base station meet the cooperation condition, control UE uses joint transmission pattern access service Base station and cooperative base station, and be unsatisfactory for that UE will not be controlled to access clothes using joint transmission pattern during the cooperation condition Business base station and cooperative base station, improve the accuracy rate of UE access services base station and cooperative base station, reduce access The blocking rate of control.

In a kind of possible design, according to the corresponding cooperation transmission mode of a cooperation condition of satisfaction, control UE access services base station processed and at least one cooperative base station, including：

Cooperation access is sent at least one cooperative base station and indicates message, and cooperation access indicates that message includes UE's User's mark, corresponding cooperation transmission mode and at least one cooperative base station need the resource provided for UE.

Message is indicated by sending cooperation access at least one cooperative base station, for each cooperative base station, is protected Demonstrate,prove the cooperation transmission mode that should be used when the cooperative base station all can be identified as UE processing business and should provide Resource, improves the accuracy of Access Control.

In a kind of possible design, according to the corresponding cooperation transmission mode of a cooperation condition of satisfaction, control UE access services base station processed and at least one cooperative base station, including：

Access response message is sent to UE, the base station that access response message includes at least one cooperative base station is marked Knowledge, corresponding cooperation transmission mode and at least one cooperative base station need the resource provided for UE so that UE accesses at least one cooperative base station according to access response message.

By sending cooperation access response message to UE so that UE is defined as this business and provides service extremely A few cooperative base station, UE can access at least one cooperative base station exactly, improve UE accesses association Make the efficiency of base station.

In a kind of possible design, method includes：

The measurement report that UE is sent to serving BS is received, measurement report includes at least one that UE is measured The state parameter of individual candidate cooperative base station；

The candidate cooperative base station that state parameter at least one candidate cooperative base station is more than pre-determined threshold is defined as At least one cooperative base station.

In a kind of possible design, state parameter at least one candidate base station is more than to the time of pre-determined threshold Cooperative base station is selected to be defined as at least one cooperative base station, including：It will be referred at least one candidate cooperative base station The candidate cooperative base station that signal reception power RSRP is more than the first thresholding is defined as at least one cooperative base station； Or, Signal to Interference plus Noise Ratio SINR at least one candidate cooperative base station is more than to the time of the second thresholding Cooperative base station is selected to be defined as at least one cooperative base station.

By the measurement report sent according to the UE, the larger base station of state parameter that selection UE is detected is made For cooperative base station, service quality when the follow-up cooperative base station is UE processing business is ensure that, industry is improved Business treatment effeciency.

In a kind of possible design, judge the available resources of serving BS, at least one cooperative base station can One in default one or more cooperation conditions whether is met with resource, including：According to default cooperation Condition priority order, judges that the available resources of serving BS, the available resources of at least one cooperative base station are The no cooperation condition for meeting the first priority.If the available resources of serving BS, at least one cooperative base station Available resources be unsatisfactory for the cooperation condition of the first priority, then it is suitable according to default cooperation condition priority Sequence, determines whether the cooperation condition of next priority in pre-set priority order is satisfied, until it is determined that meeting One cooperation condition.

By determining the pre-set priority order of each cooperation condition, it can judge according to pre-set priority order Whether the available resources of serving BS, the available resources of at least one cooperative base station meet corresponding cooperation condition, Judge whether to meet the cooperation bar of next priority again during the cooperation condition that is to say a priority on being unsatisfactory for Part, it is to avoid the wasting of resources judge simultaneously caused by, improves logic.

In a kind of possible design, connection control method provided in an embodiment of the present invention can apply to service Base station, can also be applied to controller.

Second aspect, the embodiments of the invention provide a kind of base station, base station includes：

Receiver, is asked for receiving the service access that UE is sent to the base station；

Processor, available resources, at least one cooperative base station of base station are judged for responding service access request Available resources whether meet one in default one or more cooperation conditions, each cooperation condition correspondence One cooperation transmission mode for controlling UE to access, if it is determined that the available resources of base station, at least one association The available resources for making base station meet a cooperation condition, then according to the corresponding cooperation of a cooperation condition of satisfaction Transmission mode, control UE access base stations and at least one cooperative base station.

The cooperation condition different by providing, and each cooperation condition one cooperation transmission mode of correspondence, work as clothes , could be according to the cooperation when available resources of business base station and at least one cooperative base station meet any cooperation condition The corresponding cooperation transmission mode control UE access services base station of condition and at least one cooperative base station, improve and connect Enter the accuracy rate of control, reduce the blocking rate of Access Control.

In a kind of possible design, service access request at least includes the targeted rate needed for UE, and cooperation is passed Defeated pattern includes dual link transmission mode, and the corresponding cooperation condition of dual link transmission mode is that base station can be UE The first rate of offer is not less than UE with the second speed sum that at least one cooperative base station can provide for UE Required targeted rate；First rate according to available resource block number, resource block size and the UE of base station with Signal to Interference plus Noise Ratio SINR between base station is obtained；Second speed is according at least one cooperative base station SINR between available resource block number, resource block size and UE and at least one cooperative base station is obtained.

In a kind of possible design, processor is additionally operable to available resource block number according to base station, resource block SINR between size and UE and base station, the first rate that calculation base station can provide for UE；For Predetermined each cooperative base station, according to the available resource block number of cooperative base station, resource block size and SINR between UE and cooperative base station, calculates the second speed that cooperative base station can provide for UE；Judge Whether first rate and the second speed sum are not less than targeted rate.

By providing dual link transmission mode corresponding cooperation condition, available resources when serving BS, at least When the available resources of one cooperative base station meet the cooperation condition, control UE is accessed using dual link transmission mode Serving BS and cooperative base station, and be unsatisfactory for that UE will not be controlled to use dual link transmission mode during the cooperation condition Access service base station and cooperative base station, improve the accuracy rate of UE access services base station and cooperative base station, reduction The blocking rate of Access Control.

In a kind of possible design, service access request at least includes the targeted rate needed for UE, and cooperation is passed Defeated pattern includes dual link transmission mode, and the corresponding cooperation condition of dual link transmission mode cooperates at least one The available resource block number of base station is not less than the resource block number that at least one cooperative base station needs to provide；At least One cooperative base station needs the 3rd speed that the resource block number provided needs to provide according at least one cooperative base station SINR between rate, resource block size and UE and at least one cooperative base station is obtained；Third speed according to Difference between the fourth rate that the targeted rate and base station that UE needs can provide for UE is obtained；Four-speed Rate is obtained according to the SINR between the available resource block number, resource block size and UE and base station of base station.

In a kind of possible design, processor is additionally operable to available resource block number according to base station, resource block SINR between size and UE and base station, the fourth rate that calculation base station can provide for UE；Calculate Difference between targeted rate and fourth rate, the third speed for needing to provide as cooperative base station；For pre- The each cooperative base station first determined, according between third speed, resource block size and UE and cooperative base station SINR, calculates the resource block number that cooperative base station needs to provide；Judge the available resource block number of cooperative base station Whether the resource block number of offer is needed not less than cooperative base station.

By providing dual link transmission mode corresponding cooperation condition, available resources when serving BS, at least When the available resources of one cooperative base station meet the cooperation condition, control UE is accessed using dual link transmission mode Serving BS and cooperative base station, and be unsatisfactory for that UE will not be controlled to use dual link transmission mode during the cooperation condition Access service base station and cooperative base station, improve the accuracy rate of UE access services base station and cooperative base station, reduction The blocking rate of Access Control.

In a kind of possible design, service access request at least includes the targeted rate needed for UE, and cooperation is passed Defeated pattern includes cooperative scheduling/cooperative beam figuration CS/CB transmission modes, the corresponding association of CS/CB transmission modes Make condition for the target resource block number mesh needed for the available resource block number of base station is not less than UE；Needed for UE Targeted rate, the resource block size of base station and CS/CB transmission mould of the target resource block number mesh according to needed for UE SINR under formula between UE and base station is obtained.

In a kind of possible design, processor is additionally operable to targeted rate, the resource of base station according to needed for UE SINR under block size and CS/CB transmission modes between UE and base station, calculates the target money needed for UE Source block number；Obtain the available resource block number of base station；Judge whether the available resource block number of base station is not small In target resource block number mesh.

By providing CS/CB transmission modes corresponding cooperation condition, available resources when serving BS, at least When the available resources of one cooperative base station meet the cooperation condition, control UE is connect using CS/CB transmission modes Enter serving BS, and be unsatisfactory for that UE will not be controlled to access clothes using CS/CB transmission modes during the cooperation condition It is engaged in base station, improving the accuracy rate of UE access services base station, reducing the blocking rate of Access Control.

In a kind of possible design, service access request at least includes the targeted rate needed for UE, and cooperation is passed Defeated pattern includes joint transmission pattern, and the corresponding cooperation condition of joint transmission pattern is the available resource block of base station Number is not less than the target resource block number mesh needed for UE, and the available resource block of at least one cooperative base station Number is not less than the target resource block number mesh needed for UE；Target resource block number mesh needed for UE is according to UE institutes SINR between the targeted rate, the resource block size of base station and UE and the base station that need is obtained.

In a kind of possible design, processor is additionally operable to targeted rate, the resource of base station according to needed for UE SINR between block size and UE and base station, calculates the target resource block number mesh needed for UE；Obtain base The available resource block number stood；For predetermined each cooperative base station, the available money of cooperative base station is obtained Source block number；Judge whether the available resource block number of base station is not less than target resource block number mesh, and judge association Whether the available resource block number for making base station is not less than target resource block number mesh.

By providing joint transmission pattern corresponding cooperation condition, available resources when serving BS, at least one When the available resources of individual cooperative base station meet the cooperation condition, control UE uses joint transmission pattern access service Base station and cooperative base station, and be unsatisfactory for that UE will not be controlled to access clothes using joint transmission pattern during the cooperation condition Business base station and cooperative base station, improve the accuracy rate of UE access services base station and cooperative base station, reduce access The blocking rate of control.

In a kind of possible design, base station also includes：

Transmitter, indicates message, cooperation access is indicated for sending cooperation access at least one cooperative base station The user that message includes UE identifies, corresponding cooperation transmission mode and at least one cooperative base station needs are The resource that UE is provided.

Message is indicated by sending cooperation access at least one cooperative base station, for each cooperative base station, is protected Demonstrate,prove the cooperation transmission mode that should be used when the cooperative base station all can be identified as UE processing business and should provide Resource, improves the accuracy of Access Control.

In a kind of possible design, base station also includes：

Transmitter, for sending access response message to UE, access response message includes at least one cooperation base Base Station Identification, corresponding cooperation transmission mode and at least one cooperative base station stood need the money provided for UE Source so that UE accesses at least one cooperative base station according to access response message.

By sending cooperation access response message to UE so that UE is defined as this business and provides service extremely A few cooperative base station, UE can access at least one cooperative base station exactly, improve UE accesses association Make the efficiency of base station.

In a kind of possible design, receiver is additionally operable to receive the measurement report that UE is sent to serving BS, Measurement report includes the state parameter at least one candidate cooperative base station that UE is measured；

Processor is additionally operable to assist the candidate that state parameter at least one candidate cooperative base station is more than pre-determined threshold It is defined as at least one cooperative base station as base station.

In a kind of possible design, processor is additionally operable to reference signal at least one candidate cooperative base station The candidate cooperative base station that receiving power RSRP is more than the first thresholding is defined as at least one cooperative base station；Or, The candidates for being more than the second thresholding of Signal to Interference plus Noise Ratio SINR at least one candidate cooperative base station are assisted It is defined as at least one cooperative base station as base station.

By the measurement report sent according to the UE, the larger base station of state parameter that selection UE is detected is made For cooperative base station, service quality when the follow-up cooperative base station is UE processing business is ensure that, industry is improved Business treatment effeciency.

In a kind of possible design, processor is additionally operable to, according to default cooperation condition priority order, sentence Whether available resources, the available resources of at least one cooperative base station of disconnected base station meet the cooperation of the first priority Condition.If the available resources of base station, that the available resources of at least one cooperative base station are unsatisfactory for first is preferential The cooperation condition of level, then according to default cooperation condition priority order, under determining in pre-set priority order Whether the cooperation condition of one priority is satisfied, until it is determined that the cooperation condition met.

By determining the pre-set priority order of each cooperation condition, it can judge according to pre-set priority order Whether the available resources of serving BS, the available resources of at least one cooperative base station meet corresponding cooperation condition, Judge whether to meet the cooperation bar of next priority again during the cooperation condition that is to say a priority on being unsatisfactory for Part, it is to avoid the wasting of resources judge simultaneously caused by, improves logic.

The third aspect, the embodiments of the invention provide a kind of computer-readable storage medium, for saving as above-mentioned base Computer software instructions used in standing, it, which is included, is used to perform the program designed by above-mentioned aspect.

Compared to prior art, the scheme proposed in the embodiment of the present invention can provide more multimachine for UE accesses Meeting, improves the accuracy rate of Access Control, reduces the blocking rate of Access Control.

Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, institute in being described below to embodiment The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only the present invention Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, Other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is a kind of structural representation of network system provided in an embodiment of the present invention；

Fig. 2 is the structural representation of another network system provided in an embodiment of the present invention；

Fig. 3 is a kind of flow chart of connection control method provided in an embodiment of the present invention；

Fig. 4 is the flow chart of another connection control method provided in an embodiment of the present invention；

Fig. 5 is a kind of Signalling exchange flow chart provided in an embodiment of the present invention；

Fig. 6 is a kind of structural representation of base station provided in an embodiment of the present invention；

Fig. 7 is a kind of structural representation of controller provided in an embodiment of the present invention.

Embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present invention Embodiment is described in further detail.

As shown in figure 1, user equipment (UE) passes through base station access network network.The technology that the present invention is described can be fitted For Long Term Evolution (Long Term Evolution, abbreviation LTE) system, or other use various wireless access The wireless communication system of technology, for example with CDMA, frequency division multiple access, time division multiple acess, orthogonal frequency is more Location, the system of the access technology such as single-carrier frequency division multiple access.Further, it is also possible to be suitable for use with after LTE system Continuous evolution system, such as the 5th generation 5G system.For clarity, only enter here by taking LTE system as an example Row explanation.In LTE system, UMTS (the Universal Mobile of evolution Telecommunications System, abbreviation UMTS) land face wireless access (Evolved Universal Terrestrial Radio Access Network, abbreviation E-UTRAN) it is used as wireless access network, evolution packet Core net (Evolved Packet Core, abbreviation EPC) is used as core net.UE by E-UTRAN, and EPC accessing Internet protocol multimedias subsystem (Internet Protocol Multimedia Subsystem, letter Claim IMS) network.

In the application, noun " network " and " system " are often used alternatingly, but those skilled in the art can manage Solve its implication.User equipment (UE) involved by the application can include the various hands with radio communication function Holding equipment, mobile unit, wearable device, computing device or the other places for being connected to radio modem Manage equipment, and various forms of user equipmenies, mobile station (Mobile station, abbreviation MS), terminal (Terminal), terminal device (Terminal Equipment) etc..Describe for convenience, in the application, Apparatus mentioned above is referred to as user equipment or UE.The present invention relates to base station (Base Station, Abbreviation BS) it is a kind of device being deployed in wireless access network to provide radio communication function for UE.Institute Various forms of macro base stations, micro-base station, relay station, access point etc. can be included by stating base station.Using not In the system of same wireless access technology, the title for possessing the equipment of base station functions may be different, example Such as in the lte networks, node B (the evolved NodeB, abbreviation of referred to as evolution：ENB or eNodeB), In third generation 3G network, referred to as node B (Node B) etc..It is above-mentioned in the application for convenience of describing Base station or BS are referred to as the UE devices for providing radio communication function.

In a kind of possible design, if using distributed network system (DNS), each base station in network system The scheduling and distribution of resource are each carried out, then when carrying out Access Control to UE, is determined by each serving BS The UE cooperative base stations to be accessed.Specifically, as shown in figure 1, Fig. 1 is network system in the embodiment of the present application Structure rough schematic view, wherein in network system at least include UE101, base station 102,103 and 104. Exemplarily, base station 102 is UE101 serving BS, and base station 103,104 is adjacent with base station 102, UE101 is in the overlapping region between different base station overlay area.Specifically, when UE101 has new business will During processing, service access request first can be sent to base station 102, service access request includes UE101 Required target resource.Base station 102 judges the target money whether current available resources are more than needed for UE101 Source.If the available resources of base station 102 are not more than the target resource, represent that base station 102 can not be individually for UE101 handles the business.Now, base station 102 can obtain the available resources of adjacent base station 103, judge Whether the available resources of base station 103 meet default cooperation condition.If meeting the default cooperation condition, table Show that base station 102 and base station 103 can cooperate with and handle the business for UE101.Now, base station 102 and base station 103 can cooperate with as UE101 processing business.It is understood that collaboration base station can be multiple, such as base Standing 102 can also obtain the available resources of adjacent base station 104, and judge base station 104 available resources whether Meet default cooperation condition.If it is satisfied, then can be UE101 by the collaboration of base station 102,103 and 104 Processing business.

In alternatively possible design, if using centralized network system, by the control in network system Device, which is concentrated, to be scheduled and distributes to the resource of multiple base stations, then when carrying out Access Control to UE, by controlling Device, which is concentrated, carries out Access Control, determines serving BS and cooperative base station that UE to be accessed.As shown in Fig. 2 net Network system includes UE201, controller 202 and base station 203,204 and 205.Exemplarily, base station 203 be UE201 serving BS, and base station 204,205 is adjacent with base station 203, and UE201 is in different bases The overlapping region stood between overlay area.Specifically, when UE201 has new business to handle, can first to Controller 202 sends service access request, and service access request includes the target resource needed for UE201. Controller 202 judges whether the available resources of base station 203 are more than the target resource needed for UE201.If base 203 available resources of standing are not more than the target resource, and representing that base station 203 can not be individually for UE201 processing should Business.Now, controller 202 can obtain the available resources of adjacent base station 204, and judge base station 204 Available resources whether meet default cooperation condition.If meeting the default cooperation condition, base station 203 is represented It can be cooperateed with base station 204 and handle the business for UE201.Now, base station 203 and base station 204 can be assisted It is all UE201 processing business.It is understood that collaboration base station can be multiple, controller 202 may be used also To obtain the available resources of adjacent base station 205, and judge whether the available resources of base station 205 meet default Cooperation condition.If it is satisfied, then can be UE201 processing business by the collaboration of base station 203,204 and 205.

Fig. 3 is a kind of flow chart of connection control method provided in an embodiment of the present invention, the embodiment of the present invention Executive agent is serving BS, and referring to Fig. 3, the connection control method can include：

301st, the measurement report that UE is sent to serving BS is received, the measurement report includes UE measurements The state parameter of at least one candidate cooperative base station arrived.

Wherein, the serving BS is used to be UE processing business, UE can the base station of access service in advance, and survey The signal of at least one base station detected is measured, measurement report is generated, is sent to the serving BS, the service Base station can receive the measurement report.Or, UE does not access any base station in advance, then UE detect to , can be raw using the maximum base station of the signal intensity detected as serving BS during the signal of a few base station During into measurement report, measurement report, the serving BS can be sent to the maximum base station of the signal intensity Receive the measurement report.

The state parameter at least one base station that the UE is detected can be included in the measurement report, represent this extremely A few base station can be UE processing business, then it is considered that at least one base station can as UE time Select cooperative base station.

Wherein, the state parameter of at least one candidate cooperative base station can include each candidate cooperative base station Reference Signal Received Power (Reference Signal Received Power, abbreviation RSRP), reference signal connect Receive quality (Reference Signal Received Quality, abbreviation RSRQ) and channel condition information (Channel Status Information, abbreviation CSI) etc., the embodiment of the present invention is not limited this.

And, when sending the measurement report, different state parameters can be carried in different message and send. For example, in LTE system, RSRP and RSRQ are carried in measurement report (L3msg) message, CSI Information is carried in uplink channel information (Uplink Channel Information, abbreviation UCI) (L1msg), Wherein CSI includes channel quality and indicates (Channel Quality Indictor, abbreviation CQI), order instruction (Rank Indicator, abbreviation RI) and pre-coding matrix instruction (Precoding Matrix Indicator, abbreviation PMI).

The 302nd, state parameter at least one candidate cooperative base station is more than to the candidate cooperative base station of pre-determined threshold It is defined as cooperative base station.

After serving BS receives UE measurement report, according to the state of at least one candidate cooperative base station Parameter, is determined to handle the cooperative base station of the business for UE from least one candidate cooperative base station.Specifically Ground, for each candidate cooperative base station at least one candidate cooperative base station, the base if candidate cooperates The state parameter stood is more than pre-determined threshold, then the candidate cooperative base station can be defined as into cooperative base station, if The state parameter of the candidate cooperative base station is not more than pre-determined threshold, then is no longer defined as the candidate cooperative base station Cooperative base station.

In addition, the state parameter includes the various states parameter such as RSRP, RSRQ and CSI, serving BS Cooperative base station can be determined according to different state parameters, the embodiment of the present invention is not limited this.

Specifically, RSRP at least one candidate cooperative base station is more than the first pre-determined threshold by serving BS Candidate cooperative base station be defined as cooperative base station.Or, serving BS is by least one candidate cooperative base station Middle Signal to Interference plus Noise Ratio (Signal to Interference plus Noise Ratio, abbreviation SINR) is big It is defined as cooperative base station, wherein UE and each candidate cooperative base station in the candidate cooperative base station of the second pre-determined threshold Between the CSI of at least one candidate cooperative base station that can be detected according to UE of SINR determine.

Wherein, the pre-determined threshold corresponding to every kind of state parameter can be determined by the serving BS, or by skill Art personnel are predefined, and the embodiment of the present invention is not limited this.

In addition, it is determined that after at least one cooperative base station, serving BS can be by least one cooperation of determination Base station constitutes cooperative base station collection, and any cooperative base station that can be subsequently concentrated with cooperative base station is cooperated.

Alternatively, UE can also include the association that UE is supported to serving base stations report access capability, the access capability Discuss version, the frequency range of UE supports, UE access capability grade (UE Category), UE reception/transmitting Whether ability, UE carrier aggregation capacity and UE support the information such as cooperation transmission, the embodiment of the present invention pair This is not limited.Serving BS can obtain the access capability that UE is reported, and determine whether UE supports cooperation to pass It is defeated, if UE supports cooperation transmission, cooperative base station is determined from least one candidate cooperative base station, and such as Fruit UE does not support cooperation transmission, then need not determine cooperative base station.

303rd, the service access request that UE is sent to serving BS is received.

When UE creates new business, it is necessary to be that UE handles the business by base station, now, UE is to service Base station sends service access request, handles the business to ask the serving BS as UE, the serving BS Receive service access request.

Wherein, service access request at least includes the UE target resources required when handling the business, should Target resource can include targeted rate, can also include target resource block number mesh etc., the embodiment of the present invention pair This is not limited.

304th, service access request is responded according to the available resources of the serving BS, judges that the serving BS is It is no to handle the business for UE.

Wherein, the available resources of serving BS can include the available resource block number of the serving BS, may be used also Think available speed of the serving BS etc., the embodiment of the present invention is not limited this.

Specifically, the step 304 may comprise steps of：

If the 3041, service access request includes targeted rate, according to needed for the targeted rate calculates the UE Target resource block number mesh.

Alternatively, according to the targeted rate, the target resource block number mesh needed for the UE is calculated using below equation：

Wherein, N_req,kFor the target resource block number mesh of the UE, d_kThe as targeted rate of the UE, w is Resource block size, SINR_i,kFor the SINR between the UE and serving BS i.

Alternatively, the SINR between the UE and serving BS i is calculated using below equation：

Wherein, SINR_i,kFor the SINR between the UE and serving BS i, P_iFor serving BS i transmitting Power, g_i,kFor the UE and serving BS i channel quality, P_jFor the base station j in addition to serving BS i Transmission power, g_j,kFor the UE and base station j channel quality, ρ_jFor base station j load, σ is should UE noise power.

Certainly, when service access request includes target resource block number mesh, the target can be directly obtained Resource block number, without performing step 3041.

3042nd, the resource block number according to the total resource block number of the serving BS and calculates the service base The available resource block number stood.

Alternatively, the resource block number according to total resource block number of serving BS and, using following Formula calculates the available resource block number of serving BS：

N_avail,i=λ_kN_tot,i-N_used,i；

Wherein, N_avail,iFor serving BS i available resource block number, λ_kIt is big for the priority of this business It is small, N_tot,iFor the total resource block numbers of serving BS i, N_used,iFor the number of resource blocks of serving BS i Mesh.

If the 3043, target resource block number mesh is not more than available resource block number, it is determined that the serving BS can To be individually for the UE processing business, now the serving BS can control UE to access the serving BS, be UE distributes resource, and the resource based on distribution is that UE handles the business, is terminated.

If the 3044, target resource block number mesh is more than available resource block number, the serving BS cannot be independent The business is handled for UE, then performs step 305, trial is cooperateed with other base stations handles the business for the UE.

305th, available resources, at least one cooperative base station that service access request judges the serving BS are responded Available resources whether meet one in default one or more cooperation conditions, each cooperation condition correspondence One cooperation transmission mode for controlling UE to access.

When serving BS, which can not be individually for UE, handles the business, then need to cooperate with least one cooperative base station The business is handled for the UE, and under different cooperation transmission modes, different cooperation conditions can be set, Each cooperation condition correspondence one is used for the cooperation transmission mode for controlling UE to access.Therefore, serving BS can be with Judge whether the available resources of the serving BS, the available resources of at least one cooperative base station meet default one One in individual or multiple cooperation conditions.

Wherein, the available resources of cooperative base station can include the available resource block number of the cooperative base station, may be used also So that including the available speed of the cooperative base station, transmission power of cooperative base station etc., the present invention can also be included Embodiment is not limited this.

Serving BS can to the cooperative base station acquisition request cooperative base station available resources.Alternatively, service Base station sends resource status request message to each cooperative base station, and the resource status request message is used for request pair Answer the available resources of cooperative base station.When each cooperative base station receives the resource status request message, according to this Resource status request message, resource status response message, the resource status response message are sent to serving BS Include available resource information, serving BS is according to the available resource information, it may be determined that each cooperative base station Available resources.

In addition, the resource status response message can also include the ability information and Access Control ginseng of cooperative base station Number etc., such as the Access Control parameter can include the corresponding priority of type of service.In LTE system, The available resource information of the above-mentioned cooperative base station can be transmitted by X2 interface.

Specifically, this step 305 may comprise steps of any one of 3051,3052 or 3053：

3051st, judge whether available resources, the available resources of at least one cooperative base station of serving BS are full The corresponding cooperation condition of sufficient dual link transmission mode.

Cooperation transmission mode includes dual link transmission mode, wherein, dual link transmission mode is exactly serving BS Connected with cooperative base station by the X2 interface of standard, serving BS and cooperative base station manage respective wireless respectively Resource, is coordinated each other.

The corresponding cooperation condition of the dual link transmission mode can be：What the serving BS can provide for the UE First rate is not less than the UE with the second speed sum that at least one cooperative base station can provide for the UE Required targeted rate.The first rate is according to available resource block number, the resource block size of the serving BS And the SINR between the UE and the serving BS is obtained；Second speed at least one cooperation base according to this Between available resource block number, resource block size and the UE for standing and at least one cooperative base station SINR is obtained.

Correspondingly, the step 3051 may comprise steps of 3051a to 3051c：

3051a, serving BS are according to the available resource block number, resource block size and the UE of the serving BS With the SINR between the serving BS, the first rate that the serving BS can provide for the UE is calculated.

Alternatively, the first rate can be according to available resource block number, the resource block size of the serving BS And the SINR between the UE and the serving BS is obtained using below equation：

R_avail,k,i=N_avail,iwlog(1+SINR_i,k)；

Wherein, R_avail,k,iThe first rate that can be provided for serving BS i for the UE, N_avail,iFor service Base station i available resource block number, w is resource block size, SINR_i,kFor between the UE and serving BS i SINR.

Alternatively, the SINR between the UE and serving BS i is calculated using below equation：

Wherein, SINR_i,kFor the SINR between the UE and serving BS i, P_iFor serving BS i transmitting Power, g_i,kFor the UE and serving BS i channel quality, P_lTo remove serving BS i and cooperative base station The transmission power of other base stations beyond j, g_l,kTo remove other beyond serving BS i and cooperative base station j Base station and the channel quality of the UE, ρ_lTo remove in other base stations beyond serving BS i and cooperative base station j The load of each base station, σ is the noise power of the UE.

And calculate process class of the process of available resource block number with calculating available resource block number in step 3042 Seemingly, it will not be repeated here.

3051b, for predetermined each cooperative base station, according to the available resource block number of the cooperative base station, Resource block size and the UE and the SINR at least between cooperative base station, calculating the cooperative base station can be The second speed that the UE is provided.

The process for the second speed that cooperative base station can provide for UE is calculated with calculating service base in step 3051a Stand the first rate that can be provided for UE process it is similar, will not be repeated here.

If the request of 3051c, the service access includes targeted rate, the first rate and second speed are judged Whether rate sum is not less than the targeted rate.

If first rate and the second speed sum are not less than targeted rate, the available resources of serving BS, The available resources of the cooperative base station currently judged meet the corresponding cooperation condition of the dual link collaboration mode, clothes Business base station and the cooperative base station can be cooperateed with as the UE processing business.Now, the serving BS can by this The speed that one speed needs to provide for UE as the serving BS, by between the targeted rate and the first rate Difference speed as this specify cooperative base station to need the speed that is provided for UE, can subsequently to be carried for UE It is UE processing business for corresponding speed.

If first rate and the second speed sum are less than targeted rate, the available resources of serving BS, when The available resources of preceding judged cooperative base station are unsatisfactory for the corresponding cooperation condition of the dual link collaboration mode.

And if service access request is when including target resource block number mesh, can be according to target resource block number mesh Targeted rate is calculated, the process is former with calculating target resource block number purpose according to targeted rate in step 3041 Reason is identical.

In alternatively possible implementation, the corresponding cooperation condition of the dual link transmission mode can also be： The available resource block number of at least one cooperative base station needs what is provided not less than at least one cooperative base station Resource block number.At least one cooperative base station needs the resource block number provided, and according to this, at least one cooperates Base station is needed between third speed, the resource block size and the UE provided and at least one cooperative base station SINR obtain；The targeted rate that the third speed needs according to the UE can be with the serving BS should Difference between the fourth rate that UE is provided is obtained；The fourth rate is according to the available resource block of the serving BS SINR between number, resource block size and the UE and the serving BS is obtained.

The second speed that cooperative base station can provide for UE need not be calculated, only cooperative base station needs need to be calculated Whether the target resource block number mesh of offer is more than the available resource block number of the cooperative base station, you can judge clothes Can available resources, the available resources of at least one cooperative base station of business base station meet the cooperation condition.

Accordingly, above-mentioned steps 3051 may comprise steps of 3051d to 3051g：

3051d, according to the available resource block number of the serving BS, resource block size and the UE and the clothes SINR between business base station, calculates the fourth rate that the serving BS can provide for the UE.

It is similar with the process that first rate is calculated in step 3051a to calculate the process of fourth rate, herein no longer Repeat.

If the request of 3051e, the service access includes targeted rate, the targeted rate and the fourth rate are calculated Between difference, be used as at least one cooperative base station need provide third speed.

Alternatively, the targeted rate that the third speed can need according to the UE can be with the serving BS should Difference between the fourth rate that UE is provided is obtained using below equation：

R_req,k=d_k-R_avail,k,i；

Wherein, R_req,kThe third speed for needing to provide for the UE at least one cooperative base station, d_kFor The targeted rate that UE is reported, R_avail,k,iThe fourth rate that can be provided for serving BS for the UE.

Certainly, can be according to the target resource if service access request includes target resource block number mesh Block number mesh calculates the targeted rate, and step 3051e is performed further according to the targeted rate calculated.

3051f, according to second speed, the resource block size and the UE and at least one cooperative base station Between SINR, calculate the cooperative base station need provide resource block number.

Alternatively, at least one cooperative base station need provide resource block number can according to this at least one Cooperative base station needs third speed, the resource block size and the UE and at least one cooperative base station provided Between SINR using below equation obtain：

Wherein, N_req,k,jThe target resource block number mesh for needing to provide for the UE for cooperative base station j, R_req,kFor Cooperative base station needs the third speed provided for the UE, and w is resource block size, SINR_j,kArrived for the UE Cooperative base station j SINR.

Alternatively, the SINR between the UE and cooperative base station j is calculated using below equation：

Wherein, SINR_j,kFor the UE to cooperative base station j SINR, P_jFor cooperative base station j transmit power, g_j,kFor the UE and cooperative base station j channel quality, P_lFor its of removing serving BS i and cooperative base station j The transmission power of his base station, g_l,kTo remove serving BS i and cooperative base station j other base stations with the UE's Channel quality, ρ_lThe load of each base station, σ in other base stations to remove serving BS i and cooperative base station j For the noise power of the UE.

Alternatively, the available resource block number of cooperative base station is calculated using below equation：

N_avail,j=λ_kN_tot,j-N_used,j；

Wherein, N_avail,jThe available resource block number that can be provided for cooperative base station j, N_tot,jFor cooperative base station J total resource block number, N_used,jFor the resource block numbers of cooperative base station j, λ_kFor this business Priority size.

3051g, judge the cooperative base station available resource block number whether not less than the cooperative base station need provide Resource block number.

If available resource block number be not less than target resource block number mesh, the available resources of serving BS, when The available resources of preceding judged cooperative base station meet the corresponding cooperation condition of the dual link collaboration mode, service Base station and the cooperative base station can be cooperateed with as the UE processing business.Now, the serving BS can service this The resource block number that the available resource block number of base station needs to provide for UE as the serving BS, and obtain State step 3051f and calculate the obtained resource block number for specifying cooperative base station needs to provide, subsequently can Corresponding speed is provided for UE, is UE processing business.

It is the available resources of serving BS, current if available resource block number is less than target resource block number mesh The available resources of the cooperative base station judged are unsatisfactory for the corresponding cooperation condition of the dual link collaboration mode.

Alternatively, serving BS is it is determined that after the third speed that cooperative base station needs are provided, can not perform step Rapid 3051f and 3051g, and cooperation request message is sent to cooperative base station, the cooperation request message carries this Cooperative base station needs the third speed provided, and the cooperative base station judges that the cooperative base station can according to the third speed Whether the speed of offer disclosure satisfy that third speed, if the speed that the cooperative base station can be provided disclosure satisfy that Third speed, then return to cooperation response message to serving BS, and the serving BS and cooperative base station collaboration are The UE processing business, if the speed that the cooperative base station can be provided can not meet third speed, to service Base station returns to refusal respond message, when serving BS receives refusal respond message, determines the cooperative base station not It can be cooperateed with serving BS and handle the business for UE.

3052nd, judge whether available resources, the available resources of at least one cooperative base station of serving BS are full Sufficient coordinated scheduling/coordination wave beam forming (Coordinate Scheduling Coordinate Beamforming, letter Claim CS/CB) the corresponding cooperation condition of transmission mode.

Cooperation transmission mode includes coordinating multiple points (Coordinate Multi-Point, abbreviation CoMP) and transmits mould Formula, and CoMP transmission pattern includes CS/CB transmission modes and joint transmission pattern.

Wherein, CS/CB transmission modes only need to shared channel information and tune between serving BS and cooperative base station Information is spent, and is that UE distributes corresponding resource block according to UE position and channel condition by serving BS.Phase Answer, the corresponding cooperation condition of the CS/CB transmission modes is：The available resource block number of the serving BS is not Less than the target resource block number mesh needed for the UE, the target resource block number mesh needed for the UE is according to the UE institutes The UE and the clothes under targeted rate, the resource block size of the serving BS and the CS/CB transmission modes for needing SINR between business base station is obtained.

Correspondingly, the step 3052 may comprise steps of 3052a to 3052c：

If the request of 3052a, the service access includes targeted rate, targeted rate according to needed for the UE, Under the resource block size of the serving BS and the CS/CB transmission modes between the UE and the serving BS SINR, calculates the target resource block number mesh needed for the UE.

Alternatively, the target resource block number mesh needed for the UE can according to the targeted rate needed for the UE, should SINR under the resource block size of serving BS and the CS/CB transmission modes between the UE and the serving BS Obtained using below equation：

Wherein, N_req,kThe target resource block number mesh for needing to provide for UE for serving BS, d_kFor on UE The targeted rate of report, w is resource block size, SINR_i,kFor the SINR between the UE and serving BS i.

Alternatively, the SINR between the UE and serving BS i is calculated using below equation：

Wherein, SINR_i,kFor the SINR between the UE and serving BS i, P_iFor serving BS i transmitting Power, g_i,kFor the UE and serving BS i channel quality, σ is the noise power of the UE.

Certainly, if service access request includes target resource block number mesh, the mesh can be directly obtained Resource block number is marked, without performing step 3052a.

3052b, the available resource block number for obtaining the serving BS.

Obtain process class of the process of available resource block number with calculating available resource block number in step 3042 Seemingly, it will not be repeated here.

3052c, judge the serving BS available resource block number whether be not less than the target resource block number mesh.

If available resource block number be not less than target resource block number mesh, the available resources of serving BS, when The available resources of preceding judged cooperative base station meet the corresponding cooperation condition of the CS/CB transmission modes, service Base station and the cooperative base station can be cooperateed with as the UE processing business.Now, the serving BS can be by the target The resource block number that resource block number needs to provide for UE as the serving BS, and this specify cooperative base station without Resource block number need to be provided for the UE.

It is the available resources of serving BS, current if available resource block number is less than target resource block number mesh The available resources of the cooperative base station judged are unsatisfactory for the corresponding cooperation condition of the CS/CB transmission modes.

3053rd, judge whether available resources, the available resources of at least one cooperative base station of serving BS are full The corresponding cooperation condition of transmission mode is closed by Football Association.

Wherein, joint transmission pattern not only needs serving BS and the base that cooperates compared with CS/CB transmission modes Shared channel information and schedule information between standing, in addition it is also necessary to shared UE data, improve UE reception letter Make an uproar than interference of the base station to UE that cooperation is had neither part nor lot in other.It that is to say, be total to by serving BS with cooperative base station It is all the resource needed for UE is provided.

Accordingly, the corresponding cooperation condition of the joint transmission pattern is：The available resources block number of the serving BS Mesh is not less than the target resource block number mesh needed for the UE, and the available resources block number of at least one cooperative base station Mesh is not less than the target resource block number mesh needed for the UE, and the target resource block number mesh needed for the UE is according to this Between the resource block size and the UE and the serving BS of targeted rate, the serving BS needed for UE SINR is obtained.

Specifically, the step 3053 may comprise steps of 3053a to 3053d：

If the request of 3053a, the service access includes targeted rate, mesh of the serving BS according to needed for the UE SINR between mark speed, the resource block size of the serving BS and the UE and the serving BS, is calculated Target resource block number mesh needed for the UE.

Alternatively, the SINR or the UE obtained between the UE and serving BS i is calculated using below equation With the SINR between cooperative base station j：

Wherein, SINR_i,kFor the SINR between the UE and serving BS i, P_iFor serving BS i transmitting work( Rate, g_i,kFor the UE and serving BS i channel quality, P_jFor cooperative base station j transmission power, g_j,kFor The UE and cooperative base station j channel quality, σ is the noise power of the UE.

After calculating SINR, target resource block number purpose process according to needed for the SINR calculates UE with It is similar according to SINR calculating target resource block number purpose process in step 3052a, it will not be repeated here.

3053b, the available resource block number for obtaining the serving BS.

3053c, the available resource block number for obtaining at least one cooperative base station.

The process for calculating the available resource block number of at least one cooperative base station is serviced with being calculated in step 3042 The process of the available resource block number of base station is similar, will not be repeated here.

3053d, judge the serving BS available resource block number whether be not less than the target resource block number mesh, And judge whether the available resource block number of the cooperative base station is not less than the target resource block number mesh.

If the available resource block number of serving BS is not less than the target resource block number mesh, and the cooperative base station Available resource block number nor less than the target resource block number mesh, then the available resources of serving BS, cooperation The available resources of base station meet the corresponding cooperation condition of the cooperation transmission mode, serving BS and cooperative base station energy Enough collaborations are the UE processing business.Now, the serving BS can regard the target resource block number mesh as the clothes Business base station needs the resource block number provided for UE, and specifies cooperative base station to need what is provided for UE as this Resource block number, is that UE handles the business subsequently to provide corresponding resource block for UE.

If the available resource block number of serving BS is less than the target resource block number mesh and/or the cooperative base station Available resource block number is less than the target resource block number mesh, then the available resources of serving BS, cooperative base station Available resources are unsatisfactory for the corresponding cooperation condition of the cooperation transmission mode.

Above-described embodiment is illustrated by taking any one of step 3051-3053 as an example, during practical application, It can be judged for one of which cooperation transmission mode, when it is determined that available resources, the cooperation of serving BS When the available resources of base station are unsatisfactory for a kind of this cooperation transmission mode corresponding cooperation condition, then a kind of assisted to lower Make transmission mode to be judged.

For example after step 3051 is performed, when it is determined that available resources, the available money of cooperative base station of serving BS Source is unsatisfactory for the corresponding cooperation condition of dual link transmission mode, then step 3052 is performed again, if serving BS Available resources, the available resources of cooperative base station have not been met the corresponding cooperation condition of CS/CB transmission modes, Step 3053 is then performed again.

Further, can be each association when it is determined that using which kind of cooperation transmission mode for UE processing business Priority is determined as transmission mode, preferentially the high cooperation transmission mode of priority is used for UE processing business, such as Fruit can not meet the corresponding cooperation condition of the high cooperation transmission mode of the priority, then using the low association of priority Make transmission mode for UE processing business.

Specifically, according to pre-set priority order, available resources, at least one association of the serving BS are judged Whether the available resources for making base station meet the corresponding cooperation condition of the first cooperation transmission mode.If the service base It is corresponding that available resources, the available resources of each cooperative base station stood are unsatisfactory for first cooperation transmission mode Cooperation condition, then according to pre-set priority order, determine that first cooperation is passed in the pre-set priority order Next cooperation transmission mode of defeated pattern, as the second cooperation transmission mode, judges the available of the serving BS Whether resource, the available resources of at least one cooperative base station meet the corresponding cooperation of second cooperation transmission mode Condition.

For example, pre-set priority order can be：The priority of dual link transmission mode can be higher than CS/CB The priority of transmission mode, the priority of CS/CB transmission modes can be higher than the priority of joint transmission pattern.

Referring to Fig. 4, serving BS determines the service access after the service access request of UE transmissions is received Target resource needed for request, according to the available resources and target resource of the serving BS, judges the service Whether base station can be individually for UE and handle the business, if the business can not be handled for UE, service base Stand and judge that can dual link transmission mode be used to be cooperateed with cooperative base station handles the business as the UE, if the clothes Available resources, the available resources of each cooperative base station of business base station are not met by dual link cooperation transmission mode Corresponding cooperation condition, then serving BS judge CS/CB transmission modes can be used to be cooperateed with cooperative base station for The UE handles the business, if the available resources of the serving BS, the available resources of each cooperative base station are also not The corresponding cooperation condition of CS/CB transmission modes can be met, then can serving BS judge use joint transmission mould Formula is cooperateed with cooperative base station handles the business for the UE, if the available resources of the serving BS, each cooperation The available resources of base station are not met by the corresponding cooperation condition of joint transmission pattern, then serving BS is sent out to UE The message for sending refusal to access.

Or, pre-set priority order can also be：The priority of dual link transmission mode can be higher than connection The priority of transmission mode is closed, the priority of joint transmission pattern can be preferential higher than CS/CB transmission modes Level.Or pre-set priority order can also not be limited this for other orders, the embodiment of the present invention.

306th, if it is determined that the available resources of the serving BS, the available resources of at least one cooperative base station are met One cooperation condition, then according to the corresponding cooperation transmission mode of a cooperation condition of satisfaction, control the UE to connect Enter the serving BS and at least one cooperative base station.

The serving BS can control the UE access services base station and at least one cooperative base station.Specifically, Serving BS can send cooperation access at least one cooperative base station and indicate message, and be connect to UE transmissions Enter response message, so as to the UE access services base station and specified cooperative base station.

Alternatively, serving BS sends cooperation access at least one cooperative base station and indicates message, the cooperation Access indicates that message includes the user's mark, the corresponding cooperation transmission mode and at least one association of the UE The resource for needing to provide for the UE as base station.

Alternatively, serving BS sends access response message to the UE, and the access response message includes this at least The Base Station Identification of one cooperative base station, the corresponding transmission mode and at least one cooperative base station need The resource that the UE is provided so that the UE accesses at least one cooperative base station according to the access response message.

Referring to Fig. 5, UE, serving BS and cooperative base station Signalling exchange flow may comprise steps of 1-9：

1st, UE sends measurement report to serving BS, and the measurement report includes at least one that the UE is measured The state parameter of individual candidate cooperative base station.

2nd, serving BS receives the measurement report, and according at least one candidate cooperative base station in the measurement report State parameter and the access capabilities that report of UE, state parameter at least one candidate cooperative base station is big It is defined as cooperative base station in the candidate cooperative base station of pre-determined threshold.

3rd, UE sends service access request to serving BS, and service access request includes handling the business institute The target resource needed.

4th, serving BS receives service access request, and each cooperative base station concentrated to cooperative base station is sent Resource status request message, the resource status request message is used for the available resource information for asking cooperative base station.

5th, each cooperative base station that cooperative base station is concentrated receives the resource status request message of serving BS transmission Afterwards, resource status response message is sent to serving BS, so that serving BS can ring according to the resource status Message is answered to determine the available resource information of each cooperative base station.

6th, serving BS receives the resource status message that each cooperative base station is sent, and responds service access request Judge whether the available resources of the serving BS, the available resources of at least one cooperative base station meet default one One in individual or multiple cooperation conditions, wherein each cooperation condition correspondence one is used for the association for controlling UE to access Make transmission mode.

7th, the cooperation bar that serving BS determines at least one cooperative base station of one cooperation condition of satisfaction and met After the corresponding cooperation transmission mode of part, send cooperation access at least one cooperative base station and indicate message, should Cooperation access indicate user's mark of message including the UE, the corresponding cooperation transmission mode and this at least one Individual cooperative base station needs the resource provided for the UE.

8th, specify cooperative base station to receive cooperation access to indicate after message, sending access to serving BS confirms Message.

9th, serving BS sends access response message to UE, and the access response message includes at least one association Make Base Station Identification, the corresponding cooperation transmission mode and the serving BS and at least one cooperation of base station Base station needs the resource provided for the UE so that the UE accesses this this at least one according to the access response message Individual cooperative base station.

In alternatively possible implementation, when serving BS performs step 6, this can be calculated at least One cooperative base station needs the resource provided for UE, and cooperation request message is sent to each cooperative base station, for Each cooperative base station, the cooperation request message carries the resource that the cooperative base station needs to provide, the cooperative base station The resource that can be calculated according to this, determines that the available resource of the cooperative base station disclosure satisfy that UE, then to clothes Business base station returns to cooperation response message, represents that the cooperative base station can be cooperateed with serving BS and handles industry for the UE Business, service is received after cooperation response message, you can be determined to cooperate with processing UE industry with the cooperative base station Business, now specifies cooperative base station to receive cooperation access and indicates after message, connect without being sent to serving BS Enter confirmation message.

It should be noted that the executive agent of the embodiment of the present invention is serving BS, it is easy to based on distributed real Each existing base station collaboration is UE processing business.Certainly, the executive agent of the embodiment of the present invention can also be control Device, so as to centralized Control UE access base stations, such as based on cdma wireless intervention network (Code Division Multiple Access Radio Access Network, abbreviation C-RAN) framework, it is easy to concentrate Control UE access base stations.

When the executive agent of the embodiment of the present invention is controller, UE sends measurement report, service to serving BS Base station forwards the measurement report to controller, and the measurement report includes at least one candidate that the UE is measured The state parameter of cooperative base station.When controller receives the measurement report, by least one candidate cooperation base State parameter is defined as cooperative base station more than the candidate cooperative base station of pre-determined threshold in standing.

Afterwards, UE sends service access request to serving BS, and serving BS forwards the business to connect to controller Enter request, when controller receives service access request, step 304-305 can be performed, if it is determined that should The available resources of serving BS, the available resources of at least one cooperative base station meet default one or more associations Make condition, then sending cooperation to serving BS indicates message, and the cooperation indicates that user of the message including the UE marks Knowledge, the corresponding cooperation transmission mode and the serving BS and at least one cooperative base station are needed for the UE The resource of offer.When serving BS receives cooperation instruction message, send and assist at least one cooperative base station Make access and indicate message, cooperation access indicates that message includes user's mark of the UE, the corresponding cooperation and passed Defeated pattern and at least one cooperative base station need the resource provided for the UE.And send access sound to UE Message is answered, the access response message includes the Base Station Identification of at least one cooperative base station, the corresponding cooperation Transmission mode and the serving BS and at least one cooperative base station need the resource provided for the UE.

Connection control method provided in an embodiment of the present invention, the business sent by receiving UE to serving BS connects Enter request, service access request at least includes the target resource needed for UE, based on different cooperation transmission modes, Judge whether the available resources of serving BS, the available resources of at least one cooperative base station meet any cooperation and pass The corresponding cooperation condition of defeated pattern, if meeting the corresponding cooperation condition of a cooperation transmission mode, according to Corresponding cooperation transmission mode, control UE access services base station and at least one cooperative base station.By for difference Cooperation transmission mode corresponding cooperation condition is provided, it is available when serving BS and at least one cooperative base station Resource meets the corresponding cooperation condition of any cooperation transmission mode, could be according to corresponding cooperation transmission mode control UE access services base station processed and at least one cooperative base station, improve the accuracy rate of Access Control, reduce and connect Enter the blocking rate of control.

The above-mentioned main angle from interaction between each network element is situated between to scheme provided in an embodiment of the present invention Continue.It is understood that each network element, such as UE, base station, network controller etc. in order to realize above-mentioned functions, It comprises perform the corresponding hardware configuration of each function and/or software module.Those skilled in the art should be very It is readily appreciated that the unit and algorithm steps of each example described with reference to the embodiments described herein, this Invention can be realized with the combining form of hardware or hardware and computer software.Some function is actually with hardware Or the mode of computer software driving hardware is performed, depending on technical scheme application-specific and design about Beam condition.Professional and technical personnel can be realized described to each specific application using distinct methods Function, but this realization is it is not considered that beyond the scope of this invention.

Fig. 6 shows a kind of possible structural representation of base station involved in above-described embodiment.

Base station includes emitter/receiver 601, processor 602 and memory 603.Emitter/receiver 601 are used to support to carry out radio communication between UE and the other base stations in base station and above-described embodiment, such as Process 310 shown in Fig. 3.Processor 602 performs the various functions for UE and other base stations.Up Link, the uplink signal from UE or base station is received via antenna, is mediated by receiver 601, And further believed by processor 602 is handled to recover UE or business datum and signaling transmitted by base station Breath.On the uplink, business datum and signaling message are handled by processor 602, and by transmitter 601 are mediated to produce down link signal, and are transmitted to UE or other base stations via antenna.Processor 602 also perform process 302-306 etc. shown in Fig. 3, and detailed process is referring again to aforementioned process 302-306's Description, will not be repeated here.Memory 603 is used for the program code and data for storing base station.Communication unit 604 are used to support base station to be communicated with other network entities, such as controller.It should be noted that base Standing, to be communicated between other base stations, network entity both can be radio communication or wire communication, This is not restricted.

Designed it is understood that Fig. 6 illustrate only simplifying for base station.In actual applications, base station can With comprising any number of transmitter, receiver, processor, memory, communication unit etc., and it is all can To realize the base station of the present invention all within protection scope of the present invention.

Fig. 7 shows a kind of possible simplified block diagram of controller involved in above-described embodiment.

The controller includes：Processor 701, memory 702 and communication unit 703.Wherein, processor 701 actions being used for base station are managed control, perform various functions to support UE communication service, also For performing process 302-306 shown in Fig. 3 etc., detailed process referring again to aforementioned process 302-306 description, It will not be repeated here.Memory 702 is used to store the program code and data for controller.Communication unit 703 are used for the communication of branch held controller and other network entities, as performing process 301 shown in Fig. 3.Control Communication of the device processed with other network entities can be wireless or wired.For example, with Fig. 6 The communication and/or UE communication of the communication unit 604 of shown base station.In other implementations, the control Device processed, which can also be integrated in base station, realizes corresponding function.

For performing above-mentioned base station of the invention, UE or network controller can processor can be central processing unit (CPU), general processor, digital signal processor (DSP), application specific integrated circuit (ASIC), scene Programmable gate array (FPGA) or other PLDs, transistor logic, hardware component Or its any combination.It can realize or perform various exemplary with reference to described by the disclosure of invention Logic block, module and circuit.The processor can also be the combination for realizing computing function, for example, wrap Containing one or more microprocessors combination, the combination of DSP and microprocessor etc..

The step of method with reference to described by the disclosure of invention or algorithm, can come real in the way of hardware Realized now or by the mode of computing device software instruction.Software instruction can be by corresponding soft Part module is constituted, and software module can be stored on RAM memory, flash memory, ROM memory, EPROM Memory, eeprom memory, register, hard disk, mobile hard disk, CD-ROM or this area are ripe In the storage medium for any other form known.A kind of exemplary storage medium is coupled to processor, so that Enable a processor to from the read information, and information can be write to the storage medium.Certainly, deposit Storage media can also be the part of processor.Processor and storage medium can be located in ASIC.In addition, The ASIC can be located in user equipment.Certainly, processor and storage medium can also be deposited as discrete assembly It is in user equipment.

One of ordinary skill in the art will appreciate that realizing all or part of step of above-described embodiment can pass through Hardware is completed, and the hardware of correlation can also be instructed to complete by program, described program can be stored in In a kind of computer-readable recording medium, storage medium mentioned above can be read-only storage, disk or CD etc..

Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all the present invention's Within spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in the present invention's Within protection domain.

Claims (16)

1. a kind of connection control method, it is characterised in that methods described includes：

Receive the service access request that user equipment (UE) is sent to serving BS；

Respond available resources, at least one cooperative base station that the service access request judges the serving BS Available resources whether meet one in default one or more cooperation conditions, each cooperation condition correspondence One cooperation transmission mode for controlling UE to access；

If it is determined that the available resources of the serving BS, the available resources of at least one cooperative base station meet one Individual cooperation condition, then according to the corresponding cooperation transmission mode of a cooperation condition of satisfaction, control the UE to connect Enter the serving BS and at least one described cooperative base station.

2. according to the method described in claim 1, it is characterised in that the service access request at least includes Targeted rate needed for the UE, the cooperation transmission mode includes dual link transmission mode, the dual link The corresponding cooperation condition of transmission mode can be the UE first rates provided and institute for the serving BS Needed for the second speed sum that stating at least one cooperative base station can provide for the UE is not less than the UE Targeted rate；The first rate according to the available resource block number of the serving BS, resource block size with And the Signal to Interference plus Noise Ratio SINR between the UE and the serving BS is obtained；Second speed Available resource block number, resource block size and the UE and institute of the rate according at least one cooperative base station The SINR stated between at least one cooperative base station is obtained.

3. according to the method described in claim 1, it is characterised in that the service access request at least includes Targeted rate needed for the UE, the cooperation transmission mode includes dual link transmission mode, the dual link The corresponding cooperation condition of transmission mode is not less than institute for the available resource block number of at least one cooperative base station State the resource block number that at least one cooperative base station needs to provide；At least one described cooperative base station needs to provide Resource block number need the third speed, the resource block that provide big according at least one described cooperative base station SINR between small and described UE and at least one described cooperative base station is obtained；The third speed according to Between the fourth rate that the targeted rate and the serving BS that the UE needs can provide for the UE Difference is obtained；The fourth rate according to the available resource block number of the serving BS, resource block size with And the SINR between the UE and the serving BS is obtained.

4. according to the method described in claim 1, it is characterised in that the service access request at least includes Targeted rate needed for the UE, the cooperation transmission mode includes cooperative scheduling/cooperative beam figuration CS/CB Transmission mode, the corresponding cooperation condition of the CS/CB transmission modes is the available resource block of the serving BS Number is not less than the target resource block number mesh needed for the UE；Target resource block number mesh root needed for the UE Mould is transmitted according to the targeted rate needed for the UE, the resource block size of the serving BS and the CS/CB SINR under formula between the UE and the serving BS is obtained.

5. according to the method described in claim 1, it is characterised in that the service access request at least includes Targeted rate needed for the UE, the cooperation transmission mode includes joint transmission pattern, the joint transmission The corresponding cooperation condition of pattern is for needed for the available resource block number of the serving BS is not less than the UE Target resource block number mesh, and the available resource block number of at least one cooperative base station is not less than the UE institutes The target resource block number mesh needed；Target of the target resource block number mesh according to needed for the UE needed for the UE SINR between speed, the resource block size of the serving BS and the UE and the serving BS is obtained .

6. according to the method described in claim 1, it is characterised in that the bar that cooperates according to satisfaction The corresponding cooperation transmission mode of part, controls the UE to access the serving BS and at least one described cooperation base Stand, including：

Cooperation access is sent at least one described cooperative base station and indicates message, and the cooperation access indicates message User's mark, the corresponding cooperation transmission mode and at least one described cooperative base station including the UE The resource provided for the UE is provided.

7. according to the method described in claim 1, it is characterised in that the bar that cooperates according to satisfaction The corresponding cooperation transmission mode of part, controls the UE to access the serving BS and at least one described cooperation base Stand, including：

Access response message is sent to the UE, the access response message includes at least one described cooperation base Base Station Identification, the corresponding cooperation transmission mode and at least one the described cooperative base station stood are needed for institute State the resource of UE offers so that the UE at least one cooperation according to the access response message access Base station.

8. according to the method described in claim 1, it is characterised in that methods described also includes：

The measurement report that the UE is sent to the serving BS is received, the measurement report includes described The state parameter at least one candidate cooperative base station that UE is measured；

The candidate cooperative base station that state parameter at least one described candidate cooperative base station is more than into pre-determined threshold is true It is set at least one described cooperative base station.

9. a kind of base station, it is characterised in that the base station includes：

Receiver, is asked for receiving the service access that UE is sent to the base station；

Processor, judge for responding the service access request base station available resources, at least one Whether the available resources of cooperative base station meet one in default one or more cooperation conditions, each cooperation Condition correspondence one is used for the cooperation transmission mode for controlling UE to access, if it is determined that the available money of the base station Source, the available resources of at least one cooperative base station meet a cooperation condition, then according to a cooperation of satisfaction The corresponding cooperation transmission mode of condition, controls the UE to access the base station and at least one described cooperation base Stand.

10. base station according to claim 9, it is characterised in that the service access request is at least wrapped The targeted rate needed for the UE is included, the cooperation transmission mode includes dual link transmission mode, the doubly-linked Connect first rate that the corresponding cooperation condition of transmission mode can provides for the UE for the base station with it is described The second speed sum that at least one cooperative base station can be provided for the UE is not less than the mesh needed for the UE Mark speed；The first rate is according to the available resource block number of the base station, resource block size and described Signal to Interference plus Noise Ratio SINR between UE and the base station is obtained；Second speed is according to described Available resource block number, resource block size and the UE of at least one cooperative base station with it is described at least one SINR between cooperative base station is obtained.

11. base station according to claim 9, it is characterised in that the service access request is at least wrapped The targeted rate needed for the UE is included, the cooperation transmission mode includes dual link transmission mode, the doubly-linked The available resource block number that the corresponding cooperation condition of transmission mode is at least one cooperative base station is connect to be not less than At least one described cooperative base station needs the resource block number provided；At least one described cooperative base station needs to carry Third speed, the resource block that the resource block number of confession needs to provide according at least one described cooperative base station SINR between size and the UE and at least one described cooperative base station is obtained；The third speed root Difference between the fourth rate that can be provided according to the UE targeted rates needed and the base station for the UE Value is obtained；The fourth rate is according to the available resource block number of the base station, resource block size and described SINR between UE and the base station is obtained.

12. base station according to claim 9, it is characterised in that the service access request is at least wrapped The targeted rate needed for the UE is included, the cooperation transmission mode includes cooperative scheduling/cooperative beam figuration CS/CB transmission modes, the corresponding cooperation condition of the CS/CB transmission modes is the available resources of the base station Block number mesh is not less than the target resource block number mesh needed for the UE；Target resource block number mesh needed for the UE Targeted rate, the resource block size of the base station and the CS/CB transmission modes according to needed for the UE Under SINR between the UE and the base station obtain.

13. base station according to claim 9, it is characterised in that the service access request is at least wrapped The targeted rate needed for the UE is included, the cooperation transmission mode includes joint transmission pattern, and the joint is passed The corresponding cooperation condition of defeated pattern is the mesh needed for the available resource block number of the base station is not less than the UE Resource block number is marked, and the available resource block number of at least one cooperative base station is not less than needed for the UE Target resource block number mesh；Target speed of the target resource block number mesh according to needed for the UE needed for the UE SINR between rate, the resource block size of the base station and the UE and the base station is obtained.

14. base station according to claim 9, it is characterised in that the base station also includes：

Transmitter, message, the cooperation are indicated for sending cooperation access at least one described cooperative base station Access indicate user's mark of message including the UE, the corresponding cooperation transmission mode and it is described at least One cooperative base station needs the resource provided for the UE.

15. base station according to claim 9, it is characterised in that the base station also includes：

Transmitter, for sending access response message to the UE, the access response message include it is described extremely Base Station Identification, the corresponding cooperation transmission mode and at least one described cooperation of a few cooperative base station Base station needs the resource provided for the UE so that the UE is according to the access response message access At least one cooperative base station.

16. base station according to claim 9, it is characterised in that the receiver is additionally operable to receive institute The measurement report that UE is sent to the base station is stated, the measurement report includes the UE and measured at least The state parameter of one candidate cooperative base station；

The processor is additionally operable to state parameter at least one described candidate cooperative base station being more than pre-determined threshold Candidate cooperative base station be defined as at least one described cooperative base station.