CN104735612B

CN104735612B - Method and apparatus for being communicated between target BS and user equipment

Info

Publication number: CN104735612B
Application number: CN201310718798.9A
Authority: CN
Inventors: 郑旸; 曹清; 刘漪
Original assignee: Nokia Shanghai Bell Co Ltd
Current assignee: Nokia Shanghai Bell Co Ltd
Priority date: 2013-12-23
Filing date: 2013-12-23
Publication date: 2019-08-13
Anticipated expiration: 2033-12-23
Also published as: CN104735612A

Abstract

The method that the present invention provides a kind of to communicate for auxiliary mark base station with user equipment in source base station, wherein, method includes the following steps: a switches to needs from the source base station user equipment of the target BS, according to the user equipment to report, user equipment location information, and in conjunction with the location information of the target BS, determine the user equipment to the target BS DOA；The DOA of the user equipment to the target BS is supplied to the target BS by b.Method according to the invention it is possible to before its location information of the user equipment to report for being switched to target BS, determine that user equipment to the DOA of target BS, the time to be communicated such as is switched to after target BS so as to shorten user equipment.

Description

Method and apparatus for being communicated between target BS and user equipment

Technical field

The present invention relates to fields of communication technology, more particularly to one kind between target BS and user equipment for being communicated Method and apparatus.

Background technique

In a communications system, as needed the DOA(Direction according to user equipment in LTE system, LTE TDD system Of Arrival, direction of arrival), information is sent to user.Fig. 7 is that base station sends information to user equipment in the downlink Schematic diagram；Wherein, the digital number after PRB indicates used PRB resource, and UE0 to UE9 respectively indicates each user and sets Standby, LTE base station can send information to user equipment according to the DOA of user equipment.

In the prior art, when user equipment is switched to target BS from source base station, target BS needs to wait for user equipment After reporting position information, just can determine that user equipment to the target BS DOA, to be communicated with user equipment.

Summary of the invention

The object of the present invention is to provide a kind of method and apparatus communicated for target BS with user equipment.

According to an aspect of the present invention, one kind is provided to communicate for auxiliary mark base station with user equipment in source base station Method, wherein method includes the following steps:

A switches to needs from the source base station user equipment of the target BS, according to the user equipment to report , the location information of the user equipment determine the user equipment to the mesh and in conjunction with the location information of the target BS Mark the DOA of base station；

The DOA of the user equipment to the target BS is supplied to the target BS by b.

According to another aspect of the present invention, a kind of side in target BS for communicating with user equipment is additionally provided Method, wherein method includes the following steps:

A is for needing to switch to from the source base station user equipment of the target BS, in the user equipment to institute Before stating the location information that target BS reports the user equipment, obtain the user equipment to the target BS DOA；

B is before the user equipment reports the location information of the user equipment to the target BS, according to the use Family equipment is communicated to the DOA of the target BS with the user equipment.

According to another aspect of the present invention, one kind is additionally provided to set for auxiliary mark base station with user in source base station The auxiliary device of standby communication, wherein the auxiliary device includes following device:

First determining device, for the user equipment for needing to switch to the target BS from the source base station, root According to the user equipment to report, user equipment location information, and in conjunction with the location information of the target BS, determine described in DOA of the user equipment to the target BS；

Device is provided, is supplied to the target BS for the DOA by the user equipment to the target BS.

According to another aspect of the present invention, it additionally provides a kind of logical for what is communicated with user equipment in target BS T unit, wherein the communication device includes following device:

Acquisition device, for the user equipment for needing to switch to the target BS from the source base station, described Before user equipment reports the location information of the user equipment to the target BS, the user equipment is obtained to the target The DOA of base station；

Sub-communication device, for the user equipment to the target BS report the user equipment location information it Before, according to the user equipment to the DOA of the target BS, communicated with the user equipment.

Compared with prior art, the invention has the following advantages that 1) target BS not yet receive user equipment to its In the case where the location information reported, user equipment can be obtained ahead of time to the DOA of target BS, so that target base in target BS The communication between user equipment can be realized, to contract before user equipment reports its location information to target BS by standing The short time that communication is established between user equipment and target BS；2) can come in several ways so that target BS obtains in advance User equipment to target BS DOA, for example, calculating the DOA by source base station and being supplied to target BS, or by target base It stands according to the information of source base station offer and calculates the DOA etc..

Detailed description of the invention

By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other Feature, objects and advantages will become more apparent upon:

Fig. 1 is the method for being communicated between target BS and user equipment of a preferred embodiment of the present invention Flow diagram；

Fig. 2 is the side for being communicated between target BS and user equipment of another preferred embodiment of the invention The flow diagram of method；

Fig. 3 is the side for being communicated between target BS and user equipment of another preferred embodiment of the invention The flow diagram of method；

Fig. 4 is the system for being communicated between target BS and user equipment of a preferred embodiment of the present invention Structural schematic diagram；

Fig. 5 be another preferred embodiment of the invention for communicated between target BS and user equipment be System structural schematic diagram；

Fig. 6 be another preferred embodiment of the invention for communicated between target BS and user equipment be System structural schematic diagram；

Fig. 7 is the schematic diagram that base station sends information to user equipment in the downlink；

Fig. 8 is the position view of the user equipment of one embodiment, source base station, target BS.

The same or similar appended drawing reference represents the same or similar component in attached drawing.

Specific embodiment

Present invention is further described in detail with reference to the accompanying drawing.

Fig. 1 is the process of the method communicated for target BS with user equipment of a preferred embodiment of the invention Schematic diagram.Wherein, the user equipment includes but is not limited to that tablet computer, smart phone, PDA etc. are any can be with base station communication User equipment；Preferably, the base station belongs to LTE system, it is highly preferred that the base station belongs to LTE TDD system.

It should be noted that the base station, user equipment and communication system are only for example, other are existing or from now on may Base station, user equipment and the communication system of appearance are such as applicable to the present invention, should also be included within the scope of protection of the present invention, and It is incorporated herein by reference.

Method according to the present embodiment includes step S101, step S102, step S103, step S104 and step S105.

In step s101, user equipment sends the location information of the user equipment to source base station.

Wherein, the location information of the user equipment includes any letter that can indicate the user equipment present position Breath, the detection reference signal (SRS, Sounding Reference Signal) etc. reported such as user equipment timing；Preferably, When the communication system where the user equipment supports 3GPP LTE Release10 standard, the position letter of the user equipment Breath may include the latitude and longitude information of user equipment.

For example, in step s101, the user equipment in LTE TDD system is determined according to 3GPP LTE Release 10 Justice reports the latitude and longitude information of the user equipment in the measurement report for being sent to source base station to source base station, the latitude and longitude information Position in measurement report is as follows:

Wherein, degreesLatitude indicates the latitude information of user equipment, and degreesLongitude indicates that user sets Standby longitude information.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to limit of the invention System, it should be appreciated by those skilled in the art that any user equipment sends the realization of the location information of the user equipment to source base station Mode should be included in the scope of the present invention.

The location information of user equipment reaches source base station via LTE network.

In step s 102, needs are switched to the user equipment of the target BS, source base station from the source base station According to the user equipment to report, user equipment location information, and in conjunction with the location information of the target BS, institute is determined State user equipment to the target BS DOA.

Preferably, the wireless management resource (RRM, Radio Resource Management) of source base station can be according to user It is identified in the measurement report information that equipment reports for the measurement of switching request, switch decision is executed to user equipment (Handover Decision), to determine whether user equipment needs to switch to target BS from the source base station.

For needing to switch to the user equipment of the target BS from the source base station, source base station is according to the user equipment Location information report, the user equipment, and in conjunction with the location information of the target BS, determine the user equipment to institute The implementation for stating the DOA of target BS includes but is not limited to:

1) location information of user equipment includes the latitude and longitude information of user equipment.For needing to switch to mesh from source base station Mark the user equipment of base station, source base station is according to the latitude and longitude information of the user equipment, and the latitude and longitude information of combining target base station, DOA of the calculating user equipment to target BS.

For example, Fig. 8 is the position view of an exemplary user equipment, source base station, target BS, source base station can be direct According to the latitude and longitude information of the latitude and longitude information of user base station and target BS, come calculate user equipment to target BS DOA.

2) location information of user equipment includes the detection reference signal that user equipment is sent.For needing from the source base Station switches to the user equipment of the target BS, and source base station determines institute according to the detection reference signal of the user equipment to report State source base station to the user equipment DOA and range information；Then, source base station is according to the source base station to the user equipment DOA and range information, and in conjunction with the location information of the target BS, determine the user equipment to the target BS DOA；Wherein, the location information of target BS may include between latitude and longitude information, target BS and the source base station of target BS Range information etc..

For example, Fig. 8 is the position view of an exemplary user equipment, source base station, target BS, for the use in figure Family equipment, source base station can according to the detection reference signal of the user equipment to report, come determine the source base station to user equipment DOA With range information A；Then, source base station is according to the DOA and range information A of the source base station to user equipment, and in conjunction with the target The latitude and longitude information of base station, determine the user equipment to the target BS DOA.

Wherein, source base station can be based on EBB(Eigen-Beam Beamforming, the beam forming based on characteristic value), ComEBB(Common Eigen-Beam Beamforming, the general beam forming based on characteristic value), MRT(Maximum Ratio Transmission, maximum rate transmission) scheduling algorithm handles the detection reference information of user equipment to report, comes Determine the source base station to user equipment DOA and range information.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to limit of the invention System, it should be appreciated by those skilled in the art that any for needing to set from the user that the source base station switches to the target BS It is standby, according to the user equipment to report, user equipment location information, and in conjunction with the location information of the target BS, really The implementation of DOA of the fixed user equipment to the target BS, should be included in the scope of the present invention.

In step s 103, the DOA of the user equipment to the target BS is supplied to the target base by source base station It stands.

Wherein, source base station is mentioned the DOA of the user equipment to the target BS by its communication protocol deferred to Supply the target BS；Preferably, source base station can be by its direct communication channel between target BS, by user equipment DOA to target BS is supplied to target BS；It is highly preferred that source base station is sent by the source base station to the target BS User equipment switching request, the DOA of the user equipment to the target BS is supplied to the target BS, example Such as, in LTE TDD system, information unit is added in the switching request for the user equipment that source base station is sent to target BS (IE, Information Element) " DOA to Target Cell ", as shown in table 1；Then in step s 103, source base It stands and the DOA of the user equipment to the target BS is added into the user equipment switching request that target BS is sent In " DOA to Target Cell ", and via X2 and S1 interface, the DOA of user equipment to the target BS is supplied to The target BS.

Table 1

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to limit of the invention System, it should be appreciated by those skilled in the art that any DOA by the user equipment to the target BS is supplied to the target The implementation of base station, should be included in the scope of the present invention.

In step S104, for switching to the user equipment of the target BS from the source base station, in the user Before equipment reports the location information of the user equipment to the target BS, target BS obtains the user equipment described in The DOA of target BS.

Specifically, in the present embodiment, for switching to the user equipment of the target BS from the source base station, in institute Before stating the location information that user equipment reports the user equipment to the target BS, target BS directly receives source base station and mentions DOA supply, user equipment to target BS.

Wherein, target BS can according to it is received it is from user equipment, be used to indicate user equipment switching complete RRCConnectionREconfigurationComplete(RRC connection reconfiguration set completion) information, determine the user equipment The target BS is switched to from source base station.

As an example, in step s 103, source base station passes through the user equipment that the source base station is sent to target BS The DOA of user equipment to the target BS is supplied to the target BS by switching request；In step S104, target base DOA of the acquisition user equipment to the target BS in the user equipment switching request that station receives from it.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to limit of the invention System, it should be appreciated by those skilled in the art that any user equipment for switching to the target BS from the source base station, Before the user equipment reports the location information of the user equipment to the target BS, the user equipment is obtained described in The implementation of the DOA of target BS, should be included in the scope of the present invention.

In step s105, the user equipment to the target BS report the user equipment location information it Before, target BS is communicated according to the user equipment to the DOA of the target BS with the user equipment.

Specifically, before the user information that the user equipment reports the user equipment to target BS, target BS According to the DOA of user equipment obtained in step S104 to the target BS, communicated with the user equipment.

It should be noted that when the location information for receiving the user equipment that user equipment is reported to the target BS Afterwards, target BS can be according to user equipment to report, user equipment location information, and the position of the target BS is combined to believe Breath, to redefine the user equipment DOA to the target BS, and the DOA being re-determined according to this, with the user equipment It is communicated.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to limit of the invention System, it should be appreciated by those skilled in the art that any user equipment reports the position of the user equipment to the target BS Before information, according to the user equipment to the DOA of the target BS, the implementation communicated with the user equipment, It should within the scope of the present invention.

It should be further noted that between step S103 and step S105, user equipment, source base station and target BS It can also carry out related other steps of switching with user equipment.For example, source base station by the switching request of user equipment by After DOA is sent to target BS, target BS can distribute C-RNTI(Cell Radio Network Temporary Identity, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI) and leader sequence, and detection reference signal/SR/P- is distributed for the user equipment CQI(channel quality indicator) resource, and send the Handover Request Acknowledge comprising RRCConnectionReconfiguration Message is to source base station；Then, source base station sends RRCConnectionReconfiguration to user equipment to require user Equipment is switched to Target cell；Then, user equipment sends Msg1 to target BS, is believed by the random access in uplink Road to transmit random access code to target BS；Then, target BS sends Msg2 to user equipment, shared by downlink Channel comes to user device transmissions random access return information；Then, user equipment sends RRCC to target BS in Msg3 OnnectionReconfigurationComplete is to complete to switch.Then then, step S105 can be performed in target BS, with User equipment is communicated.

In the prior art, after user equipment is switched to target BS from source base station, target BS needs that the user is waited to set After standby reporting position information, it just can determine that user equipment to the DOA of the target BS, and is communicated with user equipment in turn. According to the method for the present embodiment, for needing to switch to the user equipment of target BS from source base station, source base station can be according to the use The location information of the location information of family equipment, target BS, come determine user equipment to target BS DOA, and it is this is true The DOA of fixed user equipment to target BS is supplied to target BS so that the user equipment to its reporting position information it Before, target BS can be communicated with user equipment according to the user equipment that source base station provides to the DOA of target BS in advance, So as to shorten the time for establishing communication between user equipment and target BS.

Fig. 2 is that the process for the method for another preferred embodiment of the present invention communicated for target BS with user equipment is shown It is intended to.Method according to the present embodiment includes step S201, step S202, step S203, step S204 and step S205.

In step s 201, user equipment sends the location information of the user equipment to source base station.

Wherein, the implementation of step S201 and the implementation of middle step S101 referring to Fig.1 are same or similar, herein not It repeats again.

The location information that user equipment is sent reaches source base station via LTE network.

In step S202, for needing to switch to the user equipment of the target BS, source base station from the source base station Obtain the latitude and longitude information of the user equipment.

Wherein, the wireless management resource of source base station according in the measurement report information of user equipment to report be used for switching request Measurement mark, to user equipment execute switch decision, to determine whether user equipment needs to switch to from the source base station Target BS.

Wherein, needs are switched to the user equipment of the target BS from the source base station, source base station obtains the use The mode of the latitude and longitude information of family equipment includes but is not limited to:

If 1) in step s 201, in the location information of user equipment to report directly include its latitude and longitude information, then at this In step, source base station directly receives the latitude and longitude information of user equipment.

For example, in step s 201, its latitude and longitude information is added in measurement report and is reported to source base station by user equipment； In step S202, after source base station determines that the user equipment needs to switch to target BS from the source base station by switch decision, Source base station directly extracts the latitude and longitude information of user equipment from the measurement report of user equipment to report.

If 2) do not include directly in step s 201, its latitude and longitude information in the location information of user equipment to report, then exist In this step, source base station determines its latitude and longitude information according to the location information of user equipment to report.

For example, the location information that user equipment reports in step s 201 includes the detection reference letter that user equipment is sent Number.After source base station determines that the user equipment needs to switch to target BS from source base station by switch decision, according to user equipment The detection reference signal reported, determine source base station to the user equipment DOA and range information, and according to source base station to the user The DOA and range information of equipment and the latitude and longitude information of source base station, determine the latitude and longitude information of the user equipment.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to limit of the invention System, it should be appreciated by those skilled in the art that any for needing to set from the user that the source base station switches to the target BS It is standby, it according to the location information of the user equipment, determines the implementation of the latitude and longitude information of the user equipment, should be included in this In the range of invention.

In step S203, the latitude and longitude information of user equipment is supplied to the target BS by source base station.

Wherein, the latitude and longitude information of user equipment is supplied to the target by its communication protocol deferred to by source base station Base station；Preferably, source base station can be by its direct communication channel between target BS, by the latitude and longitude information of user equipment It is supplied to target BS；It is highly preferred that the user equipment switching that source base station is sent by the source base station to the target BS Request, is supplied to the target BS for the latitude and longitude information of user equipment, for example, in LTE TDD system, in source base station Information unit (IE, Information Element) " DOA is added in the switching request of the user equipment sent to target BS To Target Cell ", as shown in table 1；Then the latitude and longitude information of user equipment is added to target BS and sends out by source base station In " DOA to Target Cell " in the user equipment switching request sent, and via X2 and S1 interface, by user equipment Latitude and longitude information be supplied to the target BS.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to limit of the invention System, it should be appreciated by those skilled in the art that any realization that the latitude and longitude information of user equipment is supplied to the target BS Mode should be included in the scope of the present invention.

In step S204, for switching to the user equipment of target BS from source base station, in user equipment to target base Before station reports the location information of the user equipment, target BS obtains user equipment to the DOA of the target BS.

Wherein, target BS according to it is received it is from user equipment, be used to indicate user equipment switching complete RRCConnectionREconfigurationComplete information determines that the user equipment switches to the target base from source base station It stands.

Specifically, in the present embodiment, for switching to the user equipment of the target BS from the source base station, in institute Before stating the location information that user equipment reports the user equipment to the target BS, target BS receives the source base station and mentions The latitude and longitude information of user equipment supply, described；And according to the latitude and longitude information of the user equipment, and in conjunction with the target base The location information stood, determine the user equipment to the target BS DOA.

For example, Fig. 8 is user equipment, one source base station, target BS exemplary position view.In this step, mesh Mark base station receives the latitude and longitude information for the user equipment that source base station provides in step S203, and according to the longitude and latitude of the user equipment The latitude and longitude information for spending information and target BS, determine the user equipment to the target BS DOA.

In step S205, the user equipment to the target BS report the user equipment location information it Before, target BS is communicated according to the user equipment to the DOA of the target BS with the user equipment.

Wherein, the implementation of step S205 is same or similar with the implementation of step S105, is not repeating herein.

It should be noted that user equipment, source base station and target BS can also be held between step S203 and step S205 Row other steps related with the switching of user equipment.Be somebody's turn to do and etc. be described in detail with reference to the embodiment shown in FIG. 1, herein It repeats no more.

According to the method for the present embodiment, for needing to switch to the user equipment of target BS from source base station, source base station can The latitude and longitude information of the user equipment determined, is supplied to target BS, so that for the use for being switched to the target BS Family equipment, in the user equipment to before its reporting position information, target BS can according to the latitude and longitude information of user equipment and The latitude and longitude information of the target BS, determine user equipment to target BS DOA, and according to the DOA come with user equipment into Row communication is switched to the time that connection setup is waited after target BS so as to shorten user equipment.

Fig. 3 is that the process for the method for another preferred embodiment of the present invention communicated for target BS with user equipment is shown It is intended to.Method according to the present embodiment includes step S301, step S302, step S303, step S304 and step S305.

In step S301, user equipment sends the location information of the user equipment to source base station.

Wherein, the implementation of step S301 and the implementation of middle step S101 referring to Fig.1 are same or similar, herein not It repeats again.

In step s 302, needs are switched to the user equipment of the target BS, source base station from the source base station According to the location information of the user equipment, determine the user equipment to the source base station DOA and range information.

Wherein, needs are switched to the user equipment of the target BS from the source base station, source base station can be used more Kind of mode carrys out the location information according to the user equipment, determine the user equipment to the source base station DOA and range information.

For example, the location information of user equipment includes the latitude and longitude information of user equipment, and in step S301, user equipment Its location information is added in measurement report and is reported to source base station；In step s 302, source base station is determined by switch decision After the user equipment needs to switch to target BS from the source base station, source base station according to the measurement report of user equipment to report, from The latitude and longitude information of user equipment is extracted in the measurement report；Then, source base station according to the latitude and longitude information of user equipment with And the latitude and longitude information of the source base station, determine the user equipment to the source base station DOA and range information.

In another example the location information of user equipment includes the detection reference signal that user equipment is sent.Source base station is by cutting It changes after judgement determines that the user equipment needs to switch to target BS from source base station, according to the detection of user equipment to report with reference to believing Number, and be based on EBB, ComEBB, MRT scheduling algorithm, come determine the source base station to user equipment DOA and range information.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to limit of the invention System, it should be appreciated by those skilled in the art that any for needing to set from the user that the source base station switches to the target BS It is standby, according to the location information of the user equipment, determine the user equipment to the DOA of the source base station and the realization side of range information Formula should be included in the scope of the present invention.

In step S303, the DOA and range information of user equipment to the source base station are supplied to the mesh by source base station Mark base station.

Wherein, source base station passes through its communication protocol deferred to, by user equipment to the DOA of the source base station and apart from letter Breath is supplied to the target BS；Preferably, source base station can be by its direct communication channel between target BS, by user The DOA and range information of equipment to the source base station are supplied to target BS；It is highly preferred that source base station by the source base station to The user equipment switching request that the target BS is sent, the DOA and range information of user equipment to the source base station are mentioned The target BS is supplied, for example, in LTE TDD system, source base station is by the DOA and distance of user equipment to the source base station Information is added into the user equipment switching request that target BS is sent, and via X2 and S1 interface, user equipment is arrived The DOA and range information of the source base station are supplied to the target BS.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to limit of the invention System, it should be appreciated by those skilled in the art that described in any DOA and range information by user equipment to the source base station be supplied to The implementation of target BS, should be included in the scope of the present invention.

In step s 304, for switching to the user equipment of the target BS from the source base station, in the user Before equipment reports the location information of the user equipment to the target BS, target BS obtains the user equipment described in The DOA of target BS.

Specifically, in the present embodiment, for switching to the user equipment of the target BS from the source base station, in institute Before stating the location information that user equipment reports the user equipment to the target BS, target BS receives the source base station and mentions The supply, user equipment to the source base station DOA and range information, and based on the received user equipment to the source The DOA and range information of base station, and in conjunction with the location information of the source base station and the target BS, determine the user equipment To the DOA of the target BS.

For example, Fig. 8 is user equipment, one source base station, target BS exemplary position view.In this step, mesh Mark base station receives the user equipment that provides in step S303 of source base station to the DOA and range information of the source base station, and according to The user equipment to the source base station DOA and range information, and in conjunction with the longitude and latitude of the source base station and the target BS Information, determine the user equipment to the target BS DOA.

In step S305, the user equipment to the target BS report the user equipment location information it Before, target BS is communicated according to the user equipment to the DOA of the target BS with the user equipment.

Wherein, the implementation of step S305 is same or similar with the implementation of step S105, is not repeating herein.

It should be noted that user equipment, source base station and target BS can also be held between step S303 and step S305 Row other steps related with the switching of user equipment.Be somebody's turn to do and etc. be described in detail with reference to the embodiment shown in FIG. 1, herein It repeats no more.

According to the method for the present embodiment, for needing to switch to the user equipment of target BS from source base station, source base station can The user equipment determined is supplied to target BS to the DOA and range information of source base station, so that for being switched to the mesh The user equipment for marking base station, in the user equipment to before its reporting position information, target BS can be according to user equipment to source The location information of the DOA and range information of base station, the target BS and source base station, to determine user equipment to target BS DOA, and communicated according to the DOA with user equipment, it is switched to establish after target BS so as to shorten user equipment and lead to The time of letter.

Fig. 4 is the LTE system knot communicated for target BS with user equipment of a preferred embodiment of the invention Structure schematic diagram.Source base station in the LTE system of the present embodiment includes auxiliary device, which includes the first determining device 1 With offer device 2；Target BS in the LTE system of the present embodiment includes communication device, which includes acquisition device 3 With sub-communication device 4, wherein acquisition device 3 further comprises third reception device 31.

User equipment sends the location information of the user equipment to source base station.

For example, the user equipment in LTE TDD system is being sent to source base according to the definition of 3GPP LTE Release10 The latitude and longitude information of the user equipment, position of the latitude and longitude information in measurement report are reported in the measurement report stood to source base station It sets as follows:

For needing to switch to the user equipment of the target BS from the source base station, first in source base station determines dress 1 is set according to the user equipment to report, user equipment location information, and in conjunction with the location information of the target BS, really DOA of the fixed user equipment to the target BS.

For needing to switch to the user equipment of the target BS from the source base station, the first determining device 1 is according to this User equipment to report, user equipment location information, and in conjunction with the location information of the target BS, determine the user The implementation of DOA of equipment to the target BS includes but is not limited to:

1) location information of user equipment includes the latitude and longitude information of user equipment.For needing to switch to mesh from source base station Mark the user equipment of base station, the first determining device 1 is according to the latitude and longitude information of the user equipment, and the longitude and latitude of combining target base station Spend information, the DOA of calculating user equipment to target BS.

For example, Fig. 8 is the position view of an exemplary user equipment, source base station, target BS, the first determining device 1 can be directly according to the latitude and longitude information of the latitude and longitude information of user base station and target BS, to calculate user equipment to target base The DOA to stand.

2) location information of user equipment includes the detection reference signal that user equipment is sent, the first determining device 1 into one Step includes the first sub- determining device (not shown) and the second sub- determining device (not shown).For needing to switch from the source base station To the user equipment of the target BS, the first sub- determining device is determined according to the detection reference signal of the user equipment to report DOA and range information of the source base station to the user equipment；Then, the second sub- determining device is according to the source base station described in The DOA and range information of user equipment, and in conjunction with the location information of the target BS, determine the user equipment to the mesh Mark the DOA of base station；Wherein, the location information of target BS may include latitude and longitude information, target BS and the source base of target BS Information of the distance between standing etc..

For example, Fig. 8 is the position view of an exemplary user equipment, source base station, target BS, for the use in figure Family equipment, the first sub- determining device in source base station can be according to the detection reference signal of the user equipment to report, to determine the source DOA and range information A of the base station to user equipment；Then, the second sub- determining device in source base station is according to the source base station to use The DOA and range information A of family equipment, and in conjunction with the latitude and longitude information of the target BS, determine the user equipment described in The DOA of target BS.

Wherein, the first sub- determining device can refer to the detection of user equipment to report based on EBB, ComEBB, MRT scheduling algorithm Information is handled, come determine the source base station to user equipment DOA and range information.

The DOA of the user equipment to the target BS is supplied to the target base by the offer device 2 in source base station It stands.

Wherein, the DOA of communication protocol that device 2 is deferred to by it by the user equipment to the target BS is provided It is supplied to the target BS；Preferably, providing device 2 can will be used by its direct communication channel between target BS The DOA of family equipment to target BS is supplied to target BS；It is highly preferred that providing device 2 includes that son provides device (not shown), Son provides the user equipment switching request that device is sent by the source base station to the target BS, by the user equipment DOA to the target BS is supplied to the target BS, for example, in LTE TDD system, sub- offer device is by the use The DOA of family equipment to the target BS is added into the user equipment switching request that target BS is sent, and via X2 and The DOA of user equipment to the target BS is supplied to the target BS by S1 interface.

For switching to the user equipment of the target BS from the source base station, in the user equipment to the target Before base station reports the location information of the user equipment, the acquisition device 3 in target BS obtains the user equipment described in The DOA of target BS.

Specifically, in the present embodiment, for switching to the user equipment of the target BS from the source base station, in institute Before stating the location information that user equipment reports the user equipment to the target BS, the third in acquisition device 3 receives dress Set 31 DOA for directly receiving source base station provides user equipment to target BS.

Wherein, third reception device 31 can according to it is received it is from user equipment, be used to indicate user equipment and cut The RRCConnectionREconfigurationComplete(RRC connection reconfiguration for changing completion sets completion) information, determine the use Family equipment switches to the target BS from source base station.

As an example, the offer device 2 in source base station passes through the user equipment that the source base station is sent to target BS The DOA of user equipment to the target BS is supplied to the target BS by switching request；Third reception device 31 connects from it DOA of the acquisition user equipment to the target BS in the user equipment switching request received.

Before the user equipment reports the location information of the user equipment to the target BS, in target BS Sub-communication device 4 is communicated according to the user equipment to the DOA of the target BS with the user equipment.

Specifically, before the user information that the user equipment reports the user equipment to target BS, sub- communication dress 4 are set according to the user equipment of the acquisition of acquisition device 3 to the DOA of the target BS, is communicated with the user equipment.

It should be noted that when the location information for receiving the user equipment that user equipment is reported to the target BS Afterwards, sub-communication device 4 can be according to user equipment to report, user equipment location information, and combines the position of the target BS Confidence breath, to redefine the user equipment DOA to the target BS, and the DOA being re-determined according to this, with the user Equipment is communicated.

It should be further noted that providing what device 2 was executed with the sub-communication device 4 in target BS in source base station Between operation, user equipment, source base station and target BS can also carry out related other of the switching with user equipment and operate.Example Such as, after DOA is sent to target BS by the switching request of user equipment by source base station, target BS can distribute C-RNTI (Cell Radio Network Temporary Identity, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI) and leader sequence, and to be somebody's turn to do User equipment distributes detection reference signal/SR/P-CQI(channel quality indicator) resource, and send and include The switching request acknowledgement message of RRCConnectionReconfiguration is to source base station；Then, source base station is sent RRCConnectionReconfiguration is to user equipment to require user equipment to be switched to Target cell；Then, user Equipment sends Msg1 to target BS, transmits random access to target BS by the random access channel in uplink Code；Then, target BS sends Msg2 to user equipment, is connect at random by downlink sharied signal channel to user device transmissions Enter return information；Then, user equipment sends RRCConnectionReconfigurationCo to target BS in Msg3 Mplete is to complete to switch.Then then, the executable operation of sub-communication device 4, to be communicated with user equipment.

In the prior art, after user equipment is switched to target BS from source base station, target BS needs that the user is waited to set After standby reporting position information, it just can determine that user equipment to the DOA of the target BS, and is communicated with user equipment in turn. According to the system of the present embodiment, for needing to switch to the user equipment of target BS from source base station, source base station can be according to the use The location information of the location information of family equipment, target BS, come determine user equipment to target BS DOA, and it is this is true The DOA of fixed user equipment to target BS is supplied to target BS so that the user equipment to its reporting position information it Before, target BS can be communicated with user equipment according to the user equipment that source base station provides to the DOA of target BS in advance, So as to shorten the time for establishing communication between user equipment and target BS.

Fig. 5 is the LTE system structure of another preferred embodiment of the present invention communicated for target BS with user equipment Schematic diagram.Target BS in the LTE system of the present embodiment includes communication device, which includes acquisition device 3 and son Communication device 4；Wherein, acquisition device 3 further comprises first receiving device 32 and the second determining device 33.

Wherein, the operation that user equipment executes and the operation executed referring to user equipment in Fig. 4 are same or similar, herein not It repeats again.

For needing to switch to the user equipment of the target BS from the source base station, source base station obtains the user equipment Latitude and longitude information.

It 1) directly include its latitude and longitude information in the location information of user equipment to report, source base station directly receives user equipment Latitude and longitude information.

For example, its latitude and longitude information is added in measurement report by user equipment is reported to source base station；Source base station is by cutting It changes after judgement determines that the user equipment needs to switch to target BS from the source base station, source base station is directly from user equipment to report The latitude and longitude information of user equipment is extracted in measurement report.

It 2) does not include directly its latitude and longitude information in the location information of user equipment to report, source base station is according on user equipment The location information of report determines its latitude and longitude information.

For example, the location information of user equipment to report includes the detection reference signal that user equipment is sent.Source base station passes through After switch decision determines that the user equipment needs to switch to target BS from source base station, referred to according to the detection of user equipment to report Signal, determine source base station to the user equipment DOA and range information, and according to the DOA of source base station to the user equipment and away from From information and the latitude and longitude information of source base station, the latitude and longitude information of the user equipment is determined.

Then, the latitude and longitude information of user equipment is supplied to the target BS by source base station.

Wherein, the latitude and longitude information of user equipment is supplied to the target by its communication protocol deferred to by source base station Base station；Preferably, source base station can be by its direct communication channel between target BS, by the latitude and longitude information of user equipment It is supplied to target BS；It is highly preferred that the user equipment switching that source base station is sent by the source base station to the target BS Request, is supplied to the target BS for the latitude and longitude information of user equipment, for example, source base station will in LTE TDD system The latitude and longitude information of user equipment is added into the user equipment switching request that target BS is sent, and is connect via X2 and S1 Mouthful, the latitude and longitude information of user equipment is supplied to the target BS.

For switching to the user equipment of target BS from source base station, the user is reported to set to target BS in user equipment Before standby location information, the acquisition device 3 in target BS obtains user equipment to the DOA of the target BS.

Wherein, acquisition device 3 according to it is received it is from user equipment, be used to indicate user equipment switching complete RRCConnectionREconfigurationComplete information determines that the user equipment switches to the target base from source base station It stands.

Specifically, in the present embodiment, for switching to the user equipment of the target BS from the source base station, in institute Before stating the location information that user equipment reports the user equipment to the target BS, acquisition device 3 includes in target BS First receiving device 32 receive the latitude and longitude information of the user equipment that the source base station provides, described；Second determining device 33 According to the latitude and longitude information of the user equipment, and in conjunction with the location information of the target BS, determine that the user equipment arrives The DOA of the target BS.

For example, Fig. 8 is user equipment, one source base station, target BS exemplary position view.First receiving device 32 The latitude and longitude information for the user equipment that source base station provides is received, the second determining device 33 is according to the latitude and longitude information of the user equipment And the latitude and longitude information of target BS, determine the user equipment to the target BS DOA.

Wherein, sub-communication device 4 is described in detail in referring to Fig. 4, is not being repeated herein.

It should be noted that the latitude and longitude information of user equipment is supplied to the target BS what source base station executed Between the operation that operation and sub-communication device 4 execute, user equipment, source base station and target BS be can also carry out and user equipment Switch other related operations.The grade operations are described in detail with reference to the embodiment shown in FIG. 4, and details are not described herein.

According to the system of the present embodiment, for needing to switch to the user equipment of target BS from source base station, source base station can The latitude and longitude information of the user equipment determined, is supplied to target BS, so that for the use for being switched to the target BS Family equipment, in the user equipment to before its reporting position information, target BS can according to the latitude and longitude information of user equipment and The latitude and longitude information of the target BS, determine user equipment to target BS DOA, and according to the DOA come with user equipment into Row communication is switched to the time that connection setup is waited after target BS so as to shorten user equipment.

Fig. 6 is the LTE system signal of another preferred embodiment of the present invention communicated for target BS with user equipment Figure.Target BS in the LTE system of the present embodiment includes communication device, the communication device acquisition device 3 and sub-communication device 4；Wherein, acquisition device 3 further comprises the second reception device 34 and third determining device 35.

For needing to switch to the user equipment of the target BS from the source base station, source base station is according to the user equipment Location information, determine the user equipment to the source base station DOA and range information.

For example, the location information of user equipment includes the latitude and longitude information of user equipment, user equipment is by its location information It is added in measurement report and is reported to source base station；Source base station determines that the user equipment needs to cut from the source base station by switch decision After shifting to target BS, source base station extracts user equipment from the measurement report according to the measurement report of user equipment to report Latitude and longitude information；Then, source base station is determined according to the latitude and longitude information of user equipment and the latitude and longitude information of the source base station DOA and range information of the user equipment to the source base station.

Then, the DOA and range information of user equipment to the source base station are supplied to the target BS by source base station.

Specifically, in the present embodiment, for switching to the user equipment of the target BS from the source base station, in institute Before stating the location information that user equipment reports the user equipment to the target BS, acquisition device 3 includes in target BS The second reception device 34 receive the user equipment that the source base station provides, described to the source base station DOA and range information, Third determining device 35 based on the received user equipment to the source base station DOA and range information, and in conjunction with the source The location information of base station and the target BS, determine the user equipment to the target BS DOA.

For example, Fig. 8 is user equipment, one source base station, target BS exemplary position view.Second reception device 34 The user equipment of source base station offer is received to the DOA and range information of the source base station, third determining device 35 is according to the user Equipment to the source base station DOA and range information, and in conjunction with the latitude and longitude information of the source base station and the target BS, really DOA of the fixed user equipment to the target BS.

It should be noted that being provided in the DOA and range information by user equipment to the source base station that source base station executes Between the operation that the sub-communication device 4 of operation and target BS to the target BS executes, user equipment, source base station and mesh Mark base station can also carry out related other of the switching with user equipment and operate.The equal operations are with reference to the embodiment shown in FIG. 4 It is described in detail, details are not described herein.

According to the system of the present embodiment, for needing to switch to the user equipment of target BS from source base station, source base station can The user equipment determined is supplied to target BS to the DOA and range information of source base station, so that for being switched to the mesh The user equipment for marking base station, in the user equipment to before its reporting position information, target BS can be according to user equipment to source The location information of the DOA and range information of base station, the target BS and source base station, to determine user equipment to target BS DOA, and communicated according to the DOA with user equipment, it is switched to establish after target BS so as to shorten user equipment and lead to The time of letter.

It should be noted that the present invention can be carried out in the assembly of software and/or software and hardware, for example, this hair Specific integrated circuit (ASIC) can be used in bright each device or any other is realized similar to hardware device.In one embodiment In, software program of the invention can be executed to implement the above steps or functions by processor.Similarly, of the invention Software program (including relevant data structure) can be stored in computer readable recording medium, for example, RAM memory, Magnetic or optical driver or floppy disc and similar devices.In addition, some of the steps or functions of the present invention may be implemented in hardware, example Such as, as the circuit cooperated with processor thereby executing each step or function.

It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included in the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.This Outside, it is clear that one word of " comprising " does not exclude other units or steps, and odd number is not excluded for plural number.That states in system claims is multiple Unit or device can also be implemented through software or hardware by a unit or device.The first, the second equal words are used to table Show title, and does not indicate any particular order.

Claims

1. a kind of method communicated with user equipment in source base station for auxiliary mark base station, wherein this method includes Following steps:

A for needing to switch to from the source base station user equipment of the target BS, according to the user equipment to report, should The location information of user equipment, determine the source base station to the user equipment DOA and range information；According to the source base station To the DOA and range information of the user equipment, and in conjunction with the location information of the target BS, determine that the user equipment arrives The DOA of the target BS；

B is before the user equipment reports the location information of the user equipment to the target BS, by the user equipment DOA to the target BS is supplied to the target BS.

2. according to the method described in claim 1, wherein, the location information of the user equipment further includes the longitude and latitude of user equipment Spend information.

3. a kind of method in target BS for being communicated with user equipment, wherein method includes the following steps:

A is for switching to the user equipment of the target BS from source base station, in the user equipment on the target BS Before the location information for reporting the user equipment, the user equipment that the source base station provides, described is received to the target BS DOA, wherein the DOA of the user equipment to the target BS is by the source base station according to the source base station to the user The DOA and range information of equipment, and determined in conjunction with the location information of the target BS, the source base station is set to the user Standby DOA and range information is location information reported according to the user equipment, the user equipment and determination；

B is set before the user equipment reports the location information of the user equipment to the target BS according to the user The standby DOA for arriving the target BS, is communicated with the user equipment.

4. according to the method described in claim 3, wherein, the step A is further comprising the steps of:

For switching to the user equipment of the target BS from the source base station, in the user equipment to the target base Before station reports the location information of the user equipment, the latitude and longitude information of the user equipment that the source base station provides, described is received；

According to the latitude and longitude information of the user equipment, and in conjunction with the location information of the target BS, determine that the user sets The standby DOA for arriving the target BS.

5. according to the method described in claim 3, wherein, the step A is further comprising the steps of:

For switching to the user equipment of the target BS from the source base station, in the user equipment to the target base Before station reports the location information of the user equipment, the user equipment that the source base station provides, described is received to the source base station DOA and range information；

According to the DOA and range information of the user equipment to the source base station, and in conjunction with the source base station and the target base The location information stood, determine the user equipment to the target BS DOA.

6. a kind of auxiliary device communicated for auxiliary mark base station with user equipment in source base station, wherein the auxiliary Device includes following device:

First determining device, for the user equipment for needing to switch to the target BS from the source base station, according to this User equipment to report, user equipment location information determines the source base station to the DOA of the user equipment and apart from letter Breath；According to the DOA and range information of the source base station to the user equipment, and in conjunction with the location information of the target BS, Determine the user equipment to the target BS DOA；

Device is provided, for inciting somebody to action before the user equipment reports the location information of the user equipment to the target BS The DOA of the user equipment to the target BS is supplied to the target BS.

7. auxiliary device according to claim 6, wherein the location information of the user equipment further includes user equipment Latitude and longitude information.

8. auxiliary device according to claim 6 or 7, wherein the offer device includes following device:

Son provides device, the user equipment switching request for sending by the source base station to the target BS, by institute The DOA for stating user equipment to the target BS is supplied to the target BS.

9. it is a kind of in target BS for the communication device that is communicated with user equipment, wherein the communication device include with Lower device:

Acquisition device, for the user equipment for switching to the target BS from source base station, in the user equipment to institute Before stating the location information that target BS reports the user equipment, the user equipment that the source base station provides, described is received to institute State the DOA of target BS, wherein the DOA of the user equipment to the target BS is by the source base station according to the source base It stands to the DOA and range information of the user equipment, and determined, the source base station in conjunction with the location information of the target BS DOA and range information to the user equipment are location informations reported according to the user equipment, the user equipment And determine；

Sub-communication device, for before the user equipment reports the location information of the user equipment to the target BS, According to the user equipment to the DOA of the target BS, communicated with the user equipment.

10. communication device according to claim 9, wherein the acquisition device further includes following device:

First receiving device, for the user equipment for switching to the target BS from the source base station, in the user Before equipment reports the location information of the user equipment to the target BS, the user that the source base station provides, described is received The latitude and longitude information of equipment；

Second determining device is believed for the latitude and longitude information according to the user equipment, and in conjunction with the position of the target BS Breath, determine the user equipment to the target BS DOA.

11. communication device according to claim 9, wherein the acquisition device further includes following device:

Second reception device, for the user equipment for switching to the target BS from the source base station, in the user Before equipment reports the location information of the user equipment to the target BS, the user that the source base station provides, described is received DOA and range information of the equipment to the source base station；

Third determining device, for the DOA and range information according to the user equipment to the source base station, and in conjunction with the source The location information of base station and the target BS, determine the user equipment to the target BS DOA.