CN107809778A - A kind of base station switch method and device - Google Patents
A kind of base station switch method and device Download PDFInfo
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- CN107809778A CN107809778A CN201610815149.4A CN201610815149A CN107809778A CN 107809778 A CN107809778 A CN 107809778A CN 201610815149 A CN201610815149 A CN 201610815149A CN 107809778 A CN107809778 A CN 107809778A
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- 238000013475 authorization Methods 0.000 claims description 44
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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Abstract
The present invention relates to a kind of base station switch method and device, methods described includes：Source base station sends switching command to terminal UE, and the switching command carries the default duration, and the duration is used to indicate UE from being received the switching command, keeps being connected with the communication of the source base station within the duration；Predetermined instant before source base station terminates in the duration sends first downstream data state report to target BS, and starts to send downlink data to target BS.Break periods of the UE in the handoff procedure of base station can be reduced using the present invention, to ensure the transmission of data service between UE and base station.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of base station switch method and device.
Background technology
In mobile communication system, in order to ensure quality of service, provide the user good business experience, when terminal (UE,
User Equipment) after some cell and network establish connection, UE still needs to serving cell and neighbor cell
Signal quality measures, and to select suitable base station to switch over, meets mobility requirement.
Fig. 1 is the handoff procedure schematic diagram according to correlation technique, is switched as shown in figure 1, source base station determines to perform UE
Journey, handover request is sent to target BS；Target BS is agreed to reserve resource after switching over, responds handoff response and give source base
Stand；After source base station receives handoff response, send RRC (Radio Resource Control, wireless heterogeneous networks) connections and match somebody with somebody again
Order notice UE is put to switch over；UE receives RRC connections and reconfigures order (A points in Fig. 1), disconnects the communication with source base station and connects
Connect, start to carry out random access procedure to target BS；After successfully completing random access procedure, UE sends RRC and reconfigures completion
Message is to target BS, and at this moment, UE can carry out data transmit-receive (B points in Fig. 1) by target BS, and handoff procedure terminates.A points
Between B points, UE and source base station and target BS are unable to normal communication, the break period referred to as switched.In the switching
The disconnected time is longer, then is influenceed to caused by the transmission of data service between UE and base station bigger.
The content of the invention
In view of this, it is necessary to provide a kind of base station switch method and device, it is possible to reduce UE is in the handoff procedure of base station
Break period, to ensure the transmission of data service between UE and base station.
According to one embodiment of present invention, there is provided a kind of base station switch method, including：Source base station is sent to terminal UE
Switching command, the switching command carry the default duration, and the duration is used to indicate that UE orders from the switching is received
Make, keep being connected with the communication of the source base station within the duration；Source base station is before the duration terminates
Predetermined instant sends first downstream data state report to target BS, and starts to send downlink data to target BS.
Alternatively, the predetermined instant before the duration termination is to terminate remaining X2 interface time delay apart from the duration
Moment.
Alternatively, the maximum of X2 interface time delay X2 interface history time delay between the source base station and target BS.
Alternatively, the base station switch method also includes：Source base station is sent out when terminating the duration to target BS
Send second downstream data state report.
Alternatively, before the source base station sends switching command to UE, in addition to：Source base station sends to target BS and cut
Request is changed, and receives the handoff response of target BS transmission；The handover request includes random without random access request, the nothing
Access request is used for request target base station and supports the switching without random access procedure；The handoff response includes ringing without Stochastic accessing
Should, this is used to represent that target BS supports the switching without random access procedure without accidental access response；The switching command is also taken
With the no accidental access response.
Alternatively, UE uplink authorization informations are carried in the no accidental access response, the switching command also carries
The UE uplink authorization informations.
Alternatively, the duration is carried in the no random access request.
According to another embodiment of the invention, there is provided a kind of base station switch method, including：Target BS receives source base
Stand the first downstream data state report that the predetermined instant before being terminated in the default duration is sent, and from the predetermined instant
Starting the downlink data sent, the duration is used for instruction terminal UE from the switching command for receiving source base station transmission,
Keep being connected with the communication of source base station within the duration；Target BS completes order in the switching for receiving UE transmissions
Afterwards, the downlink data is sent to UE according to the first downstream data state report.
Alternatively, the predetermined instant before the duration termination is to terminate remaining X2 interface time delay apart from the duration
Moment.
Alternatively, the maximum of X2 interface time delay X2 interface history time delay between the source base station and target BS.
Alternatively, the base station switch method also includes：Target BS receives source base station when terminating the duration
The second downstream data state report of transmission, and the lower line number is sent to UE according to the second downstream data state report
According to.
Alternatively, the target BS receive that the predetermined instant before source base station terminates in the default duration sends the
Also include before one downlink data state report：Target BS receives the handover request that source base station is sent, and is sent out to the source base station
Send handoff response；The handover request is included without random access request, and this is used for request target base station branch without random access request
Hold the switching of no random access procedure；The handoff response is included without accidental access response, and this is used for table without accidental access response
Show that target BS supports the switching without random access procedure；The switching command also carries the no accidental access response.
Alternatively, UE uplink authorization informations are carried in the no accidental access response, the switching command also carries
The UE uplink authorization informations.
Alternatively, the duration is carried in the no random access request.
Alternatively, to carry the UE that target BS distributes according to the duration in the no accidental access response up
Authorization message, the switching command also carry the UE uplink authorization informations.
Alternatively, the target BS receives the switching completion order that UE is sent and included：The target BS receives UE roots
Order is completed in the switching sent according to the UE uplink authorization informations；The switching is completed order and connected for radio resource control RRC
Reconfigure completion message.
Alternatively, it is random access request that order is completed in the switching.
According to another embodiment of the present invention, there is provided a kind of base station switching device, applied to source base station, including：Order
Module, for sending switching command to terminal UE, the switching command carries the default duration, and the duration is used to refer to
Show UE from being received the switching command, keep being connected with the communication of the source base station within the duration；Forwarding module,
For the duration terminate before predetermined instant to target BS send first downstream data state report, and start to
Target BS sends downlink data.
Alternatively, the predetermined instant before the duration termination is to terminate remaining X2 interface time delay apart from the duration
Moment.
Alternatively, the forwarding module is additionally operable to：It is descending to target BS transmission second when terminating the duration
Data status report.
Alternatively, the base station switching device also includes：Request module, for sending handover request to target BS, and
Receive the handoff response of target BS transmission；The handover request is included without random access request, and this is without random access request
The switching without random access procedure is supported for request target base station；The handoff response is included without accidental access response, the nothing
Accidental access response is used to represent that target BS supports the switching without random access procedure；The switching command also carries described
Without accidental access response.
Alternatively, UE uplink authorization informations are carried in the no accidental access response, the switching command also carries
The UE uplink authorization informations.
According to another embodiment of the present invention, there is provided a kind of base station switching device, applied to target BS, including：Receive
Module, the first downstream data state report sent for receiving the predetermined instant before source base station terminates in the default duration
Accuse, and the downlink data sent since the predetermined instant, the duration are used for instruction terminal UE and receive source base certainly
The switching command sent of standing rises, and keeps being connected with the communication of source base station within the duration；Sending module, for receiving
After order is completed in the switching sent to UE, the downlink data is sent to UE according to the first downstream data state report.
Alternatively, the predetermined instant before the duration termination is to terminate remaining X2 interface time delay apart from the duration
Moment.
Alternatively, the sending module is additionally operable to：Receive under source base station is sent when terminating the duration second
Row data status report, and the downlink data is sent to UE according to the second downstream data state report.
Alternatively, the base station switching device also includes：Responder module, for receiving the handover request of source base station transmission,
And send handoff response to the source base station；The handover request is included without random access request, and this is used for without random access request
Support the switching without random access procedure in request target base station；The handoff response includes random without accidental access response, the nothing
Access response is used to represent that target BS supports the switching without random access procedure；The switching command also carry the nothing with
Machine access response.
Alternatively, UE uplink authorization informations are carried in the no accidental access response, the switching command also carries
The UE uplink authorization informations.
Alternatively, the sending module is additionally operable to receive the switching completion life that UE is sent according to the UE uplink authorization informations
Order；It is radio resource control RRC connection reconfiguration completion message that order is completed in the switching.
Alternatively, it is random access request that order is completed in the switching.
By the present invention, source base station sends switching command to terminal UE, and the switching command carries the default duration,
The duration is used to indicate UE from being received the switching command, keeps logical with the source base station within the duration
News connection, the predetermined instant before source base station terminates in the duration send first downstream data state report to target BS
Accuse, and start to send downlink data to target BS, it is possible to reduce break periods of the UE in the handoff procedure of base station, to ensure UE
The transmission of data service between base station.
For the above and other objects, features and advantages of the present invention can be become apparent, preferred embodiment cited below particularly,
And coordinate institute's accompanying drawings, it is described in detail below.
Brief description of the drawings
Fig. 1 is the handoff procedure schematic diagram according to correlation technique.
Fig. 2 is the flow chart for the base station switch method that the embodiment of the present invention one provides.
Fig. 3 is the flow chart for the base station switch method that the embodiment of the present invention three provides.
Fig. 4 is the block diagram for the base station switching device that the embodiment of the present invention five provides.
Fig. 5 is the block diagram for the base station switching device that the embodiment of the present invention six provides.
Fig. 6 is the interaction schematic diagram for the base station switch method that an example 1 of the invention provides.
Fig. 7 is the interaction schematic diagram for the base station switch method that an example 2 of the invention provides.
Embodiment
Further to illustrate that the present invention is to realize technological means and effect that predetermined goal of the invention taken, below in conjunction with
Accompanying drawing and preferred embodiment, to embodiment, structure, feature and its effect according to the present invention, describe in detail as after.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.
Random access procedure refers to send random access request (i.e. random access guiding Random Access from terminal UE
Preamble) begin attempt to access network to the process set up between network before basic signaling connection.
The embodiment of the present application can run on long evolving system (Long Term Evolution, referred to as LTE) system
In, (including but is not limited to LTE system).The network architecture of the system can include network side equipment (such as base station) and UE, its
Interface between middle base station and base station is referred to as X2 interface.One kind is provided in the present embodiment to can run in the above-mentioned network architecture
Base station switch method, it is necessary to which explanation, the running environment of the above-mentioned base station switch method provided in the embodiment of the present application is simultaneously
It is not limited to the above-mentioned network architecture.
Embodiment one
Fig. 2 is a kind of flow chart for base station switch method that the embodiment of the present invention one provides, and the base station of the present embodiment switches
Method is applied to source base station.As shown in Fig. 2 the base station switch method includes：
Step S101, source base station send handover request to target BS, and receive the handoff response of target BS transmission；
Step S102, source base station send switching command to terminal UE, and the switching command carries the default duration, should
Duration is used to indicate UE from being received the switching command, and the communication with the source base station is kept within the duration
Connection；
Step S103, the predetermined instant before source base station terminates in the duration send first time line number to target BS
According to state report, and start to send downlink data to target BS.
According to above-mentioned base station switch method, UE from being received the switching command, within the duration keep with
The communication connection of source base station, without directly interrupting；In addition, the predetermined instant before source base station terminates in the duration just carries
Forward direction target BS sends first downstream data state report, and starts to send downlink data to target BS, makes target BS
The first downstream data state report and downlink data can be obtained in advance, and after source base station and UE communication disconnecting
Downlink data is sent to UE as early as possible, so as to reduce the break period in handoff procedure.
Each step of the above method realizes that details is as follows：
In step S101, after source base station receives UE measurement report, judgement needs UE switching to target from source base station
During base station, you can send handover request (Handover Request) to target BS.When target BS agrees to the handover request,
Handoff response (Handover Request Acknowledge) is replied to source base station.
Switching command described in step S102 is used to notify UE to switch to target BS from source base station.Specifically, this is cut
It can be RRC connections reconfiguration message (RRC Connection Reconfiguration) to change order.The duration can
To be preset by source base station according to distance of UE signal strength, UE and source base station and target BS etc., if such as UE in source
Signal on base station is weaker, then the duration can not be oversize.The duration for example can be 35ms.The duration is used for
Indicate that UE from being received the switching command, keeps being connected with the communication of the source base station, described within the duration
Disconnect when duration terminates and being connected with the communication of the source base station.
UE keeps being connected with the communication of the source base station from being received the switching command within the duration,
UE disconnects and is connected with the communication of the source base station when duration terminates, and sends switching to target BS and complete order.
It for example can be random access request that order is completed in the switching.When UE can send random access request, illustrate UE
Downlink data can be received.
Predetermined instant before the termination of duration described in step S103 can be to terminate there remains X2 apart from the duration
At the time of interface time delay.Specifically, source base station apart from the duration terminate there remains X2 interface time delay (such as 10ms) when
Carve, first downstream data state report is sent to target BS, and start to send downlink data, ideal situation to target BS
Under, the first downstream data state report is delayed when passing through X2 interface, should reach target base when terminating the duration just
Stand, downlink data also can start to reach target BS successively when terminating the duration.When terminating the duration, UE disconnect with
The communication connection of source base station, and target BS can be after order be completed in the switching for receiving UE transmissions, according under described first
Row data status report starts to send downlink data to UE, so as to the break period without switching for UE.
In practice, the X2 interface time delay may be not accurate enough, can cause first downstream data state report and lower line number
According to by being delayed during X2 interface, the moment reaches target BS a little earlier or a little later before being terminated in the duration.If target is reached a little earlier
Base station, then target BS be transmitted across to the forward direction UE that the UE downlink datas sent are probably source base station, and if reaching mesh a little later
Base station is marked, then still has interruption between sending downlink data to UE to target BS after being terminated in the duration.In order to ensure X2
The accuracy of interface time delay, to reduce the break period as far as possible, the X2 interface time delay can be set to the source base station and target base
The maximum of X2 interface history time delay between standing.
In addition, step S103 also includes source base station sends second time line number when terminating the duration to target BS
According to state report.The second downstream data state report is sent when source base station and UE communication connection disconnect, can be with
Play a part of updating first downstream data state report.Target BS, can after second downstream data state report is received
More accurately to send downlink data to UE according to second downstream data state report.
The base station switch method provided according to the present embodiment, UE are kept from being received switching command within the duration
It is connected with the communication of source base station, without directly interrupting；In addition, source base station apart from the duration terminate there remains X2 interface when
First downstream data state report is sent to target BS at the time of prolonging, and starts to send downlink data to target BS, and
Second downstream data state report is sent to target BS again when terminating the duration, target BS is being received UE
Under being sent after the random access request of transmission according to first downstream data state report and second downstream data state report to UE
Row data, so as to reduce the break period in handoff procedure.
Embodiment two
The base station switch method that the embodiment of the present invention two provides, applied to source base station.The embodiment of the present invention two is compared to upper
Embodiment one is stated, in the handoff procedure that the present embodiment is related to, the switching of no random access procedure can be supported between UE and base station,
Thus each step of the above method realizes that details is as follows：
Handover request described in step S101 is included without random access request, and this is used to ask mesh without random access request
Mark base station and support the switching without random access procedure.Specifically, when this is without that can carry described continue in random access request
Between.When target BS receives the no random access request (or receive the duration) in no random access request
When, that is, need to judge whether to support the switching without random access procedure.If target BS supports the switching without random access procedure,
Then the handoff response is included without accidental access response, and UE uplink authorization informations.This is used to represent without accidental access response
Target BS supports the switching without random access procedure.The UE uplink authorization informations can be by target BS according to described lasting
Time distributes, such as distribution UE uplink authorizations are one or more after " duration+X2 interface minimal time delay "
Frame.The X2 interface minimal time delay can between source base station and target BS X2 interface history time delay minimum value.
Switching command described in step S102 is used to notify UE to switch to target BS from source base station.Specifically, this is cut
It can be RRC connection reconfiguration messages to change order.The duration can be by source base station according to UE signal strength, UE and source
Distance of base station and target BS etc. is preset.The duration is used to indicate UE from being received the switching command, in institute
State and keep being connected with the communication of the source base station in the duration, disconnected when terminating the duration and the source base station
Communication connection.
In the present embodiment, the handoff response that source base station receives includes no accidental access response, step S102
Described in switching command also carry the no accidental access response, with notify UE to target BS carry out without Stochastic accessing mistake
The switching of journey.In addition, the switching command also carries the UE uplink authorization informations.
UE keeps being connected with the communication of the source base station from being received the switching command within the duration, and
The random access procedure to target BS is not initiated according to the no accidental access response.When terminating the duration, UE breaks
Open and be connected with the communication of the source base station, and duration in switching command and UE uplink authorization informations are to target
Base station sends switching and completes order.For example, UE can be terminated in the duration after the 1st UE uplink authorization subframe moment to target
Base station sends the switching and completes order.It for example can be that RRC connections reconfigure completion message (RRC that order is completed in the switching
Connection Reconfiguration Complete)。
Predetermined instant before the termination of duration described in step S103 can be to terminate there remains X2 apart from the duration
At the time of interface time delay.The X2 interface time delay can be set between the source base station and target BS X2 interface history time delay most
Big value.In addition, step S103 also includes source base station sends second downstream data when terminating the duration to target BS
State report.
The base station switch method provided according to the present embodiment, UE are kept from being received switching command within the duration
It is connected with the communication of source base station, without directly interrupting, and need not be to target BS initiating random access procedure；In addition, source base
Stand apart from the duration terminate there remains X2 interface time delay at the time of to target BS send first downstream data state report,
And start to send downlink data to target BS, and send second downstream data to target BS again when terminating the duration
State report, allow target BS after order is completed in the switching for receiving UE transmissions according to first downstream data state report
And/or second downstream data state report sends downlink data to UE, so as to reduce the break period in handoff procedure.
Embodiment three
Fig. 3 is a kind of flow chart for base station switch method that the embodiment of the present invention two provides, and the base station of the present embodiment switches
Method is applied to target BS.As shown in figure 3, the base station switch method includes：
Step S201, target BS receives the handover request that source base station is sent, and sends handoff response to the source base station；
Step S202, target BS receive first that the predetermined instant before source base station terminates in the default duration is sent
Downlink data state report, and the downlink data sent since the predetermined instant, the duration are used for instruction terminal
UE keeps being connected with the communication of source base station from the switching command for receiving source base station transmission within the duration；
Step S203, target BS is after order is completed in the switching for receiving UE transmissions, according to the first downstream data
State report sends the downlink data to UE.
According to above-mentioned base station switch method, target BS can before source base station and UE communication disconnecting obtains in advance
First downstream data state report and downlink data are obtained, after source base station and UE communication disconnecting, you can sent according to UE
Switching complete order to UE send downlink data, reduce handoff procedure in break period.In addition, target BS can also enter
One step obtains the second downstream data report that source base station is sent in the communication disconnecting with UE, and according to second time line number
More accurately downlink data is sent according to state report to UE.
Each step of the above method realizes that details is as follows：
Predetermined instant before the termination of duration described in step S202 can be to terminate remaining X2 apart from the duration connect
At the time of mouth time delay.The X2 interface time delay can between the source base station and target BS X2 interface history time delay maximum
Value.
It can be random access request that order is completed in switching described in step S203.In addition, step S203 also includes mesh
Mark base station receives the second downstream data state report that source base station is sent when terminating the duration, and according to described second
Downlink data state report sends the downlink data to UE.
In addition, the specific implementation details of each step of the present embodiment refer to the base station switching side of the offer of the embodiment of the present invention one
Description in method, here is omitted.
Example IV
The base station switch method that the embodiment of the present invention four provides, applied to target BS.The embodiment of the present invention four compared to
Above-described embodiment three, in the handoff procedure that the present embodiment is related to, the switching of no random access procedure can be supported between UE and base station,
Thus each step of the above method realizes that details is as follows：
Handover request described in step S201 is included without random access request, and this is used to ask mesh without random access request
Mark base station and support the switching without random access procedure.Specifically, when this is without that can carry described continue in random access request
Between.If target BS supports the switching without random access procedure, the handoff response is included without accidental access response, and UE
Uplink authorization information.This is used to represent that target BS supports the switching without random access procedure without accidental access response.The UE
Uplink authorization information can be distributed by target BS according to the duration.
Switching command described in step S202 also carries the no accidental access response, to notify UE to target BS
Carry out the switching without random access procedure.In addition, the switching command also carries the UE uplink authorization informations.It is described lasting
Predetermined instant before time termination can be apart from the time of the duration terminating remaining X2 interface time delay.The X2 interface time delay
Can between the source base station and target BS X2 interface history time delay maximum.
Order is completed in switching described in step S203 can be by UE on the duration and UE in switching command
Row authorization message is sent to target BS, and it for example can be that RRC connections reconfigure completion message that order is completed in the switching.This
Outside, step S203 also includes the second downstream data state that target BS reception source base station is sent when terminating the duration
Report, and the downlink data is sent to UE according to the second downstream data state report.
In addition, the specific implementation details of each step of the present embodiment refer to the base station switching side of the offer of the embodiment of the present invention two
Description in method, here is omitted.
Embodiment five
As shown in fig.4, the embodiment of the present invention five provides a kind of base station switching device 100, it include request module 101,
Command module 102 and forwarding module 103.The base station switching device 100 runs on source base station in the present embodiment.It is appreciated that
Above-mentioned each module refers to computer program or program segment, for performing certain one or more specific function.It is in addition, above-mentioned
It also must be separated that the differentiation of each module, which does not represent actual program code,.
Request module 101, for sending handover request to target BS, and the switching for receiving target BS transmission rings
Should.
Command module 102, for sending switching command to terminal UE, the switching command carries the default duration,
The duration is used to indicate UE from being received the switching command, keeps logical with the source base station within the duration
News connection.
Forwarding module 103, it is descending to target BS transmission first for the predetermined instant before the duration terminates
Data status report, and start to send downlink data to target BS.Duration terminate before predetermined instant can be
At the time of remaining X2 interface time delay being terminated apart from the duration.The X2 interface time delay can be the source base station and target BS
Between X2 interface history time delay maximum.The forwarding module 103 is additionally operable to when terminating the duration to target BS
Send second downstream data state report.
In the handoff procedure that another example is related to, the switching of no random access procedure can be supported between UE and base station.By
This, the handover request is included without random access request, and this is used for request target base station without random access request and supported without random
The switching of access procedure.The duration can also be carried in the no random access request.The handoff response includes
Without accidental access response and UE uplink authorization informations, this is used to represent that target BS is supported without Stochastic accessing without accidental access response
The switching of process.The UE uplink authorization informations can be distributed by target BS according to the duration.The switching command
Also carry the no accidental access response and the UE uplink authorization informations.
The specific implementation details of above-mentioned module refer to the base station switching side that the embodiment of the present invention one and embodiment two provide
Description in method, here is omitted.
By above-mentioned base station switching device 100, UE is kept from being received the switching command within the duration
It is connected with the communication of source base station, without directly interrupting；In addition, predetermined instant of the source base station before duration termination is just
First downstream data state report is sent to target BS in advance, and starts to send downlink data to target BS, makes target base
The first downstream data state report and downlink data can be obtained in advance by standing, and in source base station and UE communication disconnecting
Downlink data is sent to UE as early as possible afterwards, so as to reduce the break period in handoff procedure.
Embodiment six
As shown in fig.5, the embodiment of the present invention five provides a kind of base station switching device 200, it include responder module 201,
Receiving module 202 and sending module 203.The base station switching device 200 runs on target BS in the present embodiment.It can manage
Solution, above-mentioned each module refers to computer program or program segment, for performing certain one or more specific function.In addition,
It also must be separated that the differentiation of above-mentioned each module, which does not represent actual program code,.
Responder module 201, handoff response is sent for receiving the handover request of source base station transmission, and to the source base station.
Receiving module 202, first sent for receiving the predetermined instant before source base station terminates in the default duration
Downlink data state report, and the downlink data sent since the predetermined instant, the duration are used for instruction terminal
UE keeps being connected with the communication of source base station from the switching command for receiving source base station transmission within the duration.
Duration terminate before predetermined instant can be apart from the duration terminate remaining X2 interface time delay when
Carve.The X2 interface time delay can between the source base station and target BS X2 interface history time delay maximum.
Sending module 203, after completing order in the switching for receiving UE transmissions, according to the first downstream data shape
State, which is reported to UE, sends the downlink data.It can be random access request that order is completed in the switching.In addition, sending module
203 are additionally operable to receive the second downstream data state report that source base station is sent when terminating the duration, and according to described
Second downstream data state report sends the downlink data to UE.
In the handoff procedure that another example is related to, the switching of no random access procedure can be supported between UE and base station.By
This, the handover request is included without random access request, and this is used for request target base station without random access request and supported without random
The switching of access procedure.The duration can also be carried in the no random access request.The handoff response includes
Without accidental access response and UE uplink authorization informations, this is used to represent that target BS is supported without Stochastic accessing without accidental access response
The switching of process.The UE uplink authorization informations can be distributed by target BS according to the duration.The switching command
Also carry the no accidental access response and the UE uplink authorization informations.The switching completes order by UE according to the UE
Uplink authorization information is sent.It can be radio resource control RRC connection reconfiguration completion message that order is completed in the switching.
The specific implementation details of above-mentioned module refer to the base station switching side that the embodiment of the present invention three and example IV provide
Description in method, here is omitted.
By above-mentioned base station switching device 200, target BS can before source base station and UE communication disconnecting carries
Preceding acquisition first downstream data state report and downlink data, after source base station and UE communication disconnecting, you can according to UE
The switching of transmission completes order and sends downlink data to UE, reduces the break period in handoff procedure.In addition, target BS may be used also
Reported with further obtaining the second downstream data that source base station sends in the communication disconnecting with UE, and according to this under second
Row data status report more accurately sends downlink data to UE.
Example 1
As shown in fig.6, the interaction schematic diagram of the base station switch method provided for instantiation 1 of the present invention.It is described
Interaction comprises the following steps：
1st, source base station determines UE being switched to target BS from source base station, and source base station sends handover request to target BS；
2nd, target BS is received and agrees to the handover request, and handoff response is replied to source base station；
3rd, after source base station receives the handoff response, RRC connection reconfiguration messages are sent to UE, the RRC connections reconfigure
The default duration is carried in message；
4th, source base station keeps being connected with UE communication within the duration；
5th, UE receives the RRC connection reconfiguration messages, keeps being connected with the communication of source base station within the duration；
6th, source base station sends first downstream data shape in (duration-X2 interface time delay) end time to target BS
State is reported, and starts to send downlink data to target BS；
7th, source base station sends second downstream data state report in duration end time to target BS；
8th, UE disconnects when terminating the duration and is connected with the communication of source base station, and initiates Stochastic accessing to target BS and ask
Ask；
9th, after target BS receives the random access request, according to the first downstream data state report and/or
Two downlink data state reports send downlink data to UE.
Example 2
As shown in fig.7, the interaction schematic diagram of the base station switch method provided for instantiation 2 of the present invention.It is described
Interaction comprises the following steps：
1st, source base station determines UE being switched to target BS from source base station, and source base station sends handover request to target BS,
No random access request is carried in the handover request, or the duration can also be carried；
2nd, target BS receives and agrees to the handover request, replys handoff response to source base station, is carried in the handoff response
Whether there is accidental access response and UE uplink authorization informations；
3rd, after source base station receives the handoff response, RRC connection reconfiguration messages are sent to UE, the RRC connections reconfigure
The default duration, the no accidental access response and UE uplink authorization informations are carried in message；
4th, source base station keeps being connected with UE communication within the duration；
5th, UE receives the RRC connection reconfiguration messages, keeps being connected with the communication of source base station within the duration；
6th, source base station sends first downstream data shape in (duration-X2 interface time delay) end time to target BS
State is reported, and starts to send downlink data to target BS；
7th, source base station sends second downstream data state report in duration end time to target BS；
8th, UE disconnects when terminating the duration and is connected with the communication of source base station, and according to the uplink authorization information to mesh
Mark base station sends RRC connections and reconfigures completion message；
9th, target BS is received after the RRC connections reconfigure completion message, according to the first downstream data state report
Accuse and/or second downstream data state report sends downlink data to UE.
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can
The program code for performing following steps to be arranged to storage to be used for：
Step S101, source base station send handover request to target BS, and receive the handoff response of target BS transmission；
Step S102, source base station send switching command to terminal UE, and the switching command carries the default duration, should
Duration is used to indicate UE from being received the switching command, and the communication with the source base station is kept within the duration
Connection；
Step S103, the predetermined instant before source base station terminates in the duration send first time line number to target BS
According to state report, and start to send downlink data to target BS.
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or
CD etc. is various can be with the medium of store program codes.
Alternatively, in the present embodiment, processor performs above-mentioned implementation according to the program code stored in storage medium
The method and step that example is recorded.
Alternatively, the specific example in the present embodiment may be referred to above-described embodiment one and embodiment two and optional embodiment party
Example described in formula, the present embodiment will not be repeated here.
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can
The program code for performing following steps to be arranged to storage to be used for：
Step S201, target BS receives the handover request that source base station is sent, and sends handoff response to the source base station；
Step S202, target BS receive first that the predetermined instant before source base station terminates in the default duration is sent
Downlink data state report, and the downlink data sent since the predetermined instant, the duration are used for instruction terminal
UE keeps being connected with the communication of source base station from the switching command for receiving source base station transmission within the duration；
Step S203, target BS is after order is completed in the switching for receiving UE transmissions, according to the first downstream data
State report sends the downlink data to UE.
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or
CD etc. is various can be with the medium of store program codes.
Alternatively, in the present embodiment, processor performs above-mentioned implementation according to the program code stored in storage medium
The method and step that example is recorded.
Alternatively, the specific example in the present embodiment may be referred to above-described embodiment three and example IV and optional embodiment party
Example described in formula, the present embodiment will not be repeated here.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
Claims (29)
- A kind of 1. base station switch method, it is characterised in that including：Source base station sends switching command to terminal UE, and the switching command carries the default duration, and the duration is used for Indicate that UE from being received the switching command, keeps being connected with the communication of the source base station within the duration；Predetermined instant before source base station terminates in the duration sends first downstream data state report to target BS, and Start to send downlink data to target BS.
- 2. base station switch method as claimed in claim 1, it is characterised in that duration terminate before predetermined instant be At the time of remaining X2 interface time delay being terminated apart from the duration.
- 3. base station switch method as claimed in claim 2, it is characterised in that the X2 interface time delay is the source base station and mesh Mark the maximum of X 2 interface between base stations history time delay.
- 4. base station switch method as claimed in claim 1, it is characterised in that also include：Source base station sends second downstream data state report when terminating the duration to target BS.
- 5. base station switch method as claimed in claim 1, it is characterised in that the source base station to UE send switching command it Before, in addition to：Source base station sends handover request to target BS, and receives the handoff response of target BS transmission；The handover request is included without random access request, and this is used for request target base station without random access request and supported without random The switching of access procedure；The handoff response is included without accidental access response, and this is used to represent that target BS is supported without random without accidental access response The switching of access procedure；The switching command also carries the no accidental access response.
- 6. base station switch method as claimed in claim 5, it is characterised in that carried in the no accidental access response on UE Row authorization message, the switching command also carry the UE uplink authorization informations.
- 7. base station switch method as claimed in claim 5, it is characterised in that carried in the no random access request described Duration.
- A kind of 8. base station switch method, it is characterised in that including：Target BS receives the first downstream data state that the predetermined instant before source base station terminates in the default duration is sent Report, and the downlink data sent since the predetermined instant, the duration are used for instruction terminal UE and receive source certainly The switching command that base station is sent rises, and keeps being connected with the communication of source base station within the duration；Target BS is sent out after order is completed in the switching for receiving UE transmissions, according to the first downstream data state report to UE Send the downlink data.
- 9. base station switch method as claimed in claim 8, it is characterised in that duration terminate before predetermined instant be At the time of remaining X2 interface time delay being terminated apart from the duration.
- 10. base station switch method as claimed in claim 9, it is characterised in that the X2 interface time delay be the source base station and The maximum of X2 interface history time delay between target BS.
- 11. base station switch method as claimed in claim 8, it is characterised in that also include：Target BS receives the second downstream data state report that source base station is sent when terminating the duration, and according to institute State second downstream data state report and send the downlink data to UE.
- 12. base station switch method as claimed in claim 8, it is characterised in that the target BS receives source base station default Duration terminate before predetermined instant send first downstream data state report before also include：Target BS receives the handover request that source base station is sent, and sends handoff response to the source base station；The handover request is included without random access request, and this is used for request target base station without random access request and supported without random The switching of access procedure；The handoff response is included without accidental access response, and this is used to represent that target BS is supported without random without accidental access response The switching of access procedure；The switching command also carries the no accidental access response.
- 13. base station switch method as claimed in claim 12, it is characterised in that carry UE in the no accidental access response Uplink authorization information, the switching command also carry the UE uplink authorization informations.
- 14. base station switch method as claimed in claim 12, it is characterised in that carried in the no random access request State the duration.
- 15. base station switch method as claimed in claim 14, it is characterised in that carry mesh in the no accidental access response The UE uplink authorization informations that mark base station is distributed according to the duration, the switching command also carry the UE uplink authorizations Information.
- 16. the base station switch method as described in claim 13 or 15, it is characterised in that the target BS receives what UE was sent Order is completed in switching to be included：The target BS receives the switching that UE is sent according to the UE uplink authorization informations and completes order；It is radio resource control RRC connection reconfiguration completion message that order is completed in the switching.
- 17. base station switch method as claimed in claim 8, it is characterised in that order is completed in the switching please for Stochastic accessing Ask.
- A kind of 18. base station switching device, applied to source base station, it is characterised in that including：Command module, for sending switching command to terminal UE, the switching command carries the default duration, when this continues Between be used for indicate UE from being received the switching command, keep being connected with the communication of the source base station within the duration；Forwarding module, first downstream data state is sent to target BS for the predetermined instant before the duration terminates Report, and start to send downlink data to target BS.
- 19. base station switching device as claimed in claim 18, it is characterised in that the predetermined instant before the duration termination At the time of for apart from duration termination remaining X2 interface time delay.
- 20. base station switching device as claimed in claim 18, it is characterised in that the forwarding module is additionally operable to：When terminating the duration second downstream data state report is sent to target BS.
- 21. base station switching device as claimed in claim 18, it is characterised in that also include：Request module, for sending handover request to target BS, and receive the handoff response of target BS transmission；The handover request is included without random access request, and this is used for request target base station without random access request and supported without random The switching of access procedure；The handoff response is included without accidental access response, and this is used to represent that target BS is supported without random without accidental access response The switching of access procedure；The switching command also carries the no accidental access response.
- 22. base station switching device as claimed in claim 21, it is characterised in that carry UE in the no accidental access response Uplink authorization information, the switching command also carry the UE uplink authorization informations.
- A kind of 23. base station switching device, applied to target BS, it is characterised in that including：Receiving module, the first downstream data sent for receiving the predetermined instant before source base station terminates in the default duration State report, and the downlink data sent since the predetermined instant, the duration are used for instruction terminal UE from reception The switching command sent to source base station rises, and keeps being connected with the communication of source base station within the duration；Sending module, after completing order in the switching for receiving UE transmissions, according to the first downstream data state report The downlink data is sent to UE.
- 24. base station switching device as claimed in claim 23, it is characterised in that the predetermined instant before the duration termination At the time of for apart from duration termination remaining X2 interface time delay.
- 25. base station switching device as claimed in claim 23, it is characterised in that the sending module is additionally operable to：The second downstream data state report that source base station is sent when terminating the duration is received, and according under described second Row data status report sends the downlink data to UE.
- 26. base station switching device as claimed in claim 23, it is characterised in that also include：Responder module, handoff response is sent for receiving the handover request of source base station transmission, and to the source base station；The handover request is included without random access request, and this is used for request target base station without random access request and supported without random The switching of access procedure；The handoff response is included without accidental access response, and this is used to represent that target BS is supported without random without accidental access response The switching of access procedure；The switching command also carries the no accidental access response.
- 27. base station switching device as claimed in claim 26, it is characterised in that carry UE in the no accidental access response Uplink authorization information, the switching command also carry the UE uplink authorization informations.
- 28. base station switching device as claimed in claim 27, it is characterised in that the sending module be additionally operable to receive UE according to Order is completed in the switching that the UE uplink authorization informations are sent；It is radio resource control RRC connection reconfiguration completion message that order is completed in the switching.
- 29. base station switching device as claimed in claim 23, it is characterised in that order is completed in the switching please for Stochastic accessing Ask.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610815149.4A CN107809778A (en) | 2016-09-08 | 2016-09-08 | A kind of base station switch method and device |
| PCT/CN2017/098090 WO2018045865A1 (en) | 2016-09-08 | 2017-08-18 | Base station handover method and apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610815149.4A CN107809778A (en) | 2016-09-08 | 2016-09-08 | A kind of base station switch method and device |
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| CN107809778A true CN107809778A (en) | 2018-03-16 |
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| CN201610815149.4A Pending CN107809778A (en) | 2016-09-08 | 2016-09-08 | A kind of base station switch method and device |
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| CN (1) | CN107809778A (en) |
| WO (1) | WO2018045865A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020063845A1 (en) * | 2018-09-28 | 2020-04-02 | 电信科学技术研究院有限公司 | Link switching method, network entity, and terminal |
| WO2020061947A1 (en) * | 2018-09-27 | 2020-04-02 | Oppo广东移动通信有限公司 | Timer-based processing method, terminal device and network device |
| WO2020164006A1 (en) * | 2019-02-13 | 2020-08-20 | 华为技术有限公司 | Network device switching method, terminal device, and network device |
| CN113099495A (en) * | 2020-01-09 | 2021-07-09 | 大唐移动通信设备有限公司 | Gateway station conversion method, device, terminal and gateway station |
| CN113825189A (en) * | 2020-06-20 | 2021-12-21 | 华为技术有限公司 | Switching control method and communication device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220141730A1 (en) * | 2019-02-20 | 2022-05-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Mobility between Cells in a Wireless Network |
| CN113271640B (en) * | 2020-02-17 | 2023-09-29 | 中国电信股份有限公司 | Data transmission method, base station, and computer-readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0611343D0 (en) * | 2006-06-09 | 2006-07-19 | Roke Manor Research | Method of handover of packet switched resources |
| CN100542325C (en) * | 2006-06-22 | 2009-09-16 | 华为技术有限公司 | Method for handover control |
| EP1892977A1 (en) * | 2006-08-21 | 2008-02-27 | Nokia Siemens Networks Gmbh & Co. Kg | Method for controlling a handover in a radio communications system |
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2016
- 2016-09-08 CN CN201610815149.4A patent/CN107809778A/en active Pending
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2017
- 2017-08-18 WO PCT/CN2017/098090 patent/WO2018045865A1/en active Application Filing
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020061947A1 (en) * | 2018-09-27 | 2020-04-02 | Oppo广东移动通信有限公司 | Timer-based processing method, terminal device and network device |
| CN113115388A (en) * | 2018-09-27 | 2021-07-13 | Oppo广东移动通信有限公司 | Timer-based processing method, terminal equipment and network equipment |
| US11930408B2 (en) | 2018-09-27 | 2024-03-12 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Timer-based processing method, terminal device, and non-transitory computer-readable storage medium |
| WO2020063845A1 (en) * | 2018-09-28 | 2020-04-02 | 电信科学技术研究院有限公司 | Link switching method, network entity, and terminal |
| CN110972214A (en) * | 2018-09-28 | 2020-04-07 | 电信科学技术研究院有限公司 | Link switching method, network entity and terminal |
| US12082064B2 (en) | 2018-09-28 | 2024-09-03 | Datang Mobile Communications Equipment Co., Ltd. | Methods and apparatus for link handover |
| WO2020164006A1 (en) * | 2019-02-13 | 2020-08-20 | 华为技术有限公司 | Network device switching method, terminal device, and network device |
| CN113099495A (en) * | 2020-01-09 | 2021-07-09 | 大唐移动通信设备有限公司 | Gateway station conversion method, device, terminal and gateway station |
| CN113099495B (en) * | 2020-01-09 | 2022-04-15 | 大唐移动通信设备有限公司 | Gateway station conversion method, device, terminal and gateway station |
| CN113825189A (en) * | 2020-06-20 | 2021-12-21 | 华为技术有限公司 | Switching control method and communication device |
| CN113825189B (en) * | 2020-06-20 | 2023-05-16 | 华为技术有限公司 | Switching control method and communication device |
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| WO2018045865A1 (en) | 2018-03-15 |
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