CN104080129A - Data transmission method and device - Google Patents
Data transmission method and device Download PDFInfo
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- CN104080129A CN104080129A CN201310106872.1A CN201310106872A CN104080129A CN 104080129 A CN104080129 A CN 104080129A CN 201310106872 A CN201310106872 A CN 201310106872A CN 104080129 A CN104080129 A CN 104080129A
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- downlink data
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Abstract
The invention discloses a data transmission method and device. The data transmission method mainly comprises the steps of receiving transmission path switching messages of downlink data sent by source base stations for terminals, confirming number information of the downlink data which are sent to the source base stations and do not yet receive uplink confirmation messages returned by the terminals and performing triggering to pause downlink data sending, wherein the difference between the downlink data sending time corresponding to confirmed number information and the time for receiving the transmission path switching messages meets a set time interval; triggering a starting function to send downlink data to target base stations of the terminals when uplink confirmation messages of the downlink data corresponding to confirmed number information are received. The problem that the downlink data sent to the target base stations by a network side are out of order due to time delay is effectively avoided, the problem that the downlink data received by the terminals and sent by the target base stations are out of order is effectively avoided, the problem of downlink data retransmission caused by the out-of-order situation is further avoided, and the network data transmission efficiency is improved.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of method and apparatus based on packet domain gateway transfer of data in the handover operation process of terminal execution minizone.
Background technology
In LTE system, for the mobile terminal of communicating by letter, in the time that this terminal Cong Yige community moves to another community, in order to keep continuity and the fluency of this terminal communication, the source base station that is being this Terminal Service determines according to switching judging strategy the target BS that this terminal is switched, and controls the handoff procedure of this terminal.
Wherein, terminal is generally divided into three phases the process that switches to target BS from source base station: first stage is that terminal is prepared switch step; Second stage be terminal depart from source base station, switch to target BS just in switch step; Three phases is that terminal switches to the switching after-stage after target BS.
Particularly, as shown in Figure 1, for terminal switches to the schematic flow sheet of target BS from source base station.Specifically comprise:
First stage: terminal is prepared to switch.
First, terminal sends a measurement report that comprises terminal identification information to the source base station of current access; Secondly, source base station determines that according to the measurement report receiving and wireless resource management information terminal carries out the target BS switching between base station, and sends to definite target BS the handover request message that has comprised terminal identification information; The 3rd, this target BS is preserved the handover information relevant to terminal in the time receiving handover request message, and the handover request message receiving is confirmed; The 4th, source base station sends the switching command that comprises target BS identification information to terminal, and indicating terminal switches to target BS.
Second stage: terminal is carrying out being switched in the process of target BS by source base station.
First, terminal, after receiving the switching command of source base station transmission, starts to set up wireless link with target BS.Particularly, terminal, after receiving the switching command that source base station sends, is carried out respectively following operation: from source base station separate, by the wireless link of setting up synchronize with target BS, design time parameter and access target BS by up link.
Secondly, the downlink data that source base station sends the packet domain gateway receiving in terminal switches to the process of target BS by source base station, is transmitted to target BS.
Particularly, when terminal is being switched to by source base station in the process of target BS, due to packet domain gateway and do not know that terminal is in the switching of carrying out minizone, therefore, packet domain gateway is switched to by source base station in the process of target BS in terminal, the transmission path that sends to the downlink data of terminal to access to source base station according to terminal is sent to source base station, by this downlink data of source base station buffer memory, and this downlink data of buffer memory is transmitted to target BS.
That is to say, switched in the process of target BS in terminal by source base station, after the downlink data that packet domain gateway sends all will be received by source base station, then be transmitted to target BS, this data transfer mode is called as the data transfer mode of forward-path.
Particularly, the data message that packet domain gateway transmits by forward-path comprises: terminal is left and is buffered in the downlink data F1 that is not yet handed down to terminal in source base station before source base station, and terminal continues the downlink data F2 that need to send to this terminal issuing to source base station being switched to packet domain gateway in this process of target BS by source base station.
It should be noted that, after the switching command that the source base station receiving in terminal sends, and before terminal access target BS, terminal and network side disconnect.
Three phases: before terminal switches to and starts communication after target BS.
First, source base station at definite mobile terminal successful switch to target BS, send to mobile management entity and packet domain gateway the handoff completion message that has comprised terminal identification information and target BS identification information, inform the path conversion operations of mobile management entity and packet domain gateway performing data transmission.
Particularly, the path conversion operations of transfer of data refers to: the mode that packet domain gateway sends downlink data is the transfer of data in straight hair path by the data transfer of forward-path, wherein, the transmission of straight hair path data refers to: by packet domain gateway, the downlink data that is handed down to terminal is directly transferred to target BS.
Secondly, packet domain gateway sends and has switched acknowledge message to target BS, and after receiving the confirmation reply message that target BS returns, realizes path conversion to straight hair path by forward-path of transfer of data.
Particularly, packet domain gateway comprises by the data message of straight hair path transmission: the ACK downlink data D2 of the upstream data sending from target BS is afterwards switched in the ACK downlink data D1 of the upstream data that response is sent by source base station before switching and response.
It is pointed out that the time sequencing that F1, F2, D1 and tetra-kinds of data of D2 produce in packet domain gateway is: F1 data are early than F2 data, and F2 data are early than D1 data, and D1 data are early than D2 data.But because F2 data are to send to source base station by packet domain gateway, send to target BS by source base station again, packet domain gateway occurs that in the time continuing to issue downlink data D1 data arrive target BS early than part F2 data like this, cause sending to the downlink data appearance of target BS out of order, and cause the problem that a large amount of downlink datas occur that time delay retransmits.
Send to the downlink data of target BS to occur out of order problem for the packet domain gateway existing, there is the settling mode of two types: the settling mode of the first type is the downlink data for switching terminal at target BS, safeguard two downlink data packet queues (the downlink data packet queue of forward-path transmission and the downlink data packet queue of straight hair path transmission), and for different data packet queues, different dispatching priorities is set; Or arrange there is out of order downlink data by token, adjust the transmission sequence of downlink data.
The settling mode of the second type is amendment LTE handoff procedure, changes signaling and notices and transfer of data flow process concurrency relation, and due to after source base station switches and reaches an agreement to target base station requests, target BS notice packet territory gateway execution route handover operation.
As can be seen here, need to transform existing network equipment by there is out of order problem in the alter mode solution downlink data transmission to base station or LTE handoff procedure, application cost is higher and transformation difficulty is larger, in this external LTE handoff procedure, the increase of downlink data transmission time delay causes the problem of the overtime re-transmission of downlink data to solve, and has also increased the consumption of Internet resources simultaneously.
Summary of the invention
The embodiment of the present invention provides a kind of method and apparatus of transfer of data, need to transform existing network equipment by occurring in the alter mode solution downlink data transmission to base station or LTE handoff procedure that out of order problem exists for solving prior art, application cost is higher and transformation difficulty is larger, the problem that network resource consumption is larger.
A method for transfer of data, comprising:
The transmission path that mobility anchor point device receives the downlink data sending for the source base station of terminal switches message, and determine the number information that has sent to source base station and not yet received the downlink data of the up acknowledge message that described terminal returns, trigger to suspend and send downlink data, wherein, downlink data transmitting time corresponding to definite number information meets with the difference of the time that receives described transmission path switching message the time interval of setting;
In the time receiving the up acknowledge message of downlink data corresponding to definite number information, trigger the target BS of opening to described terminal and send downlink data.
An equipment for transfer of data, comprising:
Determination module, switch message for the transmission path that receives the downlink data sending for the source base station of terminal, and determine the number information that has sent to source base station and not yet received the downlink data of the up acknowledge message that described terminal returns, trigger to suspend and send downlink data, wherein, downlink data transmitting time corresponding to definite number information meets with the difference of the time that receives described transmission path switching message the time interval of setting;
Data transmission module, in the time receiving the up acknowledge message of downlink data corresponding to definite number information, triggers the target BS of opening to described terminal and sends downlink data.
Beneficial effect of the present invention is as follows:
The transmission path that the embodiment of the present invention receives by mobility anchor point device the downlink data sending for the source base station of terminal switches message, and determine the number information that has sent to source base station and not yet received the downlink data of the up acknowledge message that described terminal returns, trigger to suspend and send downlink data, wherein, downlink data transmitting time corresponding to definite number information meets with the difference of the time that receives described transmission path switching message the time interval of setting, in the time receiving the up acknowledge message of downlink data corresponding to definite number information, trigger the target BS of opening to described terminal and send downlink data, compared with prior art, switch to packet domain gateway the process of target BS in terminal from source base station and determine in time the downlink data transmitting by forward-path, and in the time determining that the number information that has sent to source base station and not yet received the downlink data of up acknowledge message is the number information of last downlink data transmitting by forward-path, trigger to suspend to source base station and send downlink data, when in the time receiving the up acknowledge message of the corresponding downlink data of definite number information, packet domain gateway triggers to open to target BS and sends downlink data, the downlink data of effectively having avoided network side to send to target BS occurs out of order because of delay problem, and the downlink data that sends of the target BS that receives of terminal is same occurs out of order problem, further avoid the problem retransmitting due to out of order initiation downlink data, the efficiency of network data transmission and the utilance of Internet resources are improved.
Brief description of the drawings
Fig. 1 is terminal switches to target BS schematic flow sheet from source base station;
Fig. 2 is the flow chart of the method for a kind of transfer of data of the embodiment of the present invention one;
Fig. 3 is the flow chart of the method for a kind of transfer of data of the embodiment of the present invention two;
Fig. 4 is the schematic diagram of the structure of a kind of transfer of data of the embodiment of the present invention three.
Embodiment
In order to realize object of the present invention, the embodiment of the present invention provides a kind of method and apparatus of transfer of data, the transmission path that mobility anchor point device receives the downlink data sending for the source base station of terminal switches message, and determine the number information that has sent to source base station and not yet received the downlink data of the up acknowledge message that described terminal returns, trigger to suspend and send downlink data, wherein, downlink data transmitting time corresponding to definite number information meets with the difference of the time that receives described transmission path switching message the time interval of setting, in the time receiving the up acknowledge message of downlink data corresponding to definite number information, trigger the target BS of opening to described terminal and send downlink data.
Compared with prior art, switch to packet domain gateway the process of target BS in terminal from source base station and determine in time the downlink data transmitting by forward-path, and in the time determining that the number information that has sent to source base station and not yet received the downlink data of up acknowledge message is the number information of last downlink data transmitting by forward-path, trigger to suspend to source base station and send downlink data, when in the time receiving the up acknowledge message of the corresponding downlink data of definite number information, packet domain gateway triggers to open to target BS and sends downlink data, the downlink data of effectively having avoided network side to send to target BS occurs out of order because of delay problem, and the downlink data that sends of the target BS that receives of terminal is same occurs out of order problem, further avoid the problem retransmitting due to out of order initiation downlink data, the efficiency of network data transmission and the utilance of Internet resources are improved.
It should be noted that, the scheme of the embodiment of the present invention can be applied in cellular network and wlan network.
Below in conjunction with Figure of description, each embodiment of the present invention is described in detail.
Embodiment mono-:
As shown in Figure 2, be the flow chart of the method for a kind of transfer of data of the embodiment of the present invention one, described method comprises:
Step 101: the transmission path that mobility anchor point device receives the downlink data sending for the source base station of terminal switches message, and determine the number information that has sent to source base station and not yet received the downlink data of the up acknowledge message that described terminal returns, trigger to suspend sending downlink data.
Wherein, downlink data transmitting time corresponding to definite number information meets with the difference of the time that receives described transmission path switching message the time interval of setting.
The time interval of described setting is difference minimum, and downlink data transmitting time corresponding to definite number information distance receives described transmission path to switch time of message nearest.
Particularly, in step 101, complete the process of switching from source base station to target BS in terminal, in the time that source base station sends the transmission path switching message of downlink data to mobility anchor point device, terminal is being carried out handover operation, before this, mobility anchor point device does not also know that terminal is at execution handover operation, therefore, by the data transfer path of setting up between mobility anchor point device and source base station, need to send to the downlink data of this terminal to send to source base station, by these downlink datas of source base station buffer memory.
Confirming terminal when source base station switches in target BS, message is switched in the transmission that sends downlink data to mobility anchor point device, inform that mobility anchor point device need to send to the downlink data of this terminal directly to send to target BS, therefore, mobility anchor point device is determined the number information that has sent to source base station and not yet received the downlink data of up acknowledge message.
Wherein, described determine sent to source base station and not yet received that the number information of the downlink data of up acknowledge message includes but not limited to: determine that transmission path that distance receives the downlink data that source base station sends switches the number information of the up-to-date downlink data once sending to source base station before message; Or switch at the transmission path that receives the downlink data that source base station sends the number information that sends and do not receive all downlink datas of up acknowledge message before message to source base station.
Now, mobility anchor point device, after determining and having sent to source base station and not yet received the number information of downlink data of up acknowledge message, triggers and suspends the transmission of downlink data.
More preferably, mobility anchor point device determine sent to source base station and not yet received the number information of downlink data of up acknowledge message after, read the delay parameter RT value of current re-transmission timer, and the delay parameter of the up acknowledge message of the downlink data receiving is adjusted into the first delay parameter, wherein, the downlink data receiving described in refers to the downlink data of transmitting time before the transmitting time of downlink data corresponding to definite number information.
Wherein, the account form of described the first delay parameter includes but not limited to: when RT value, the terminal that equals to read switches between source base station and target BS the time value of deviated from network and this downlink data by network side be sent between the individual event time delay value between source base station and value, i.e. RT+t
from net+ t
net-Ji.
More preferably, the delay parameter of the up acknowledge message of the downlink data of the storage receiving is adjusted into the second delay parameter, wherein: the numerical value of the first delay parameter is greater than the numerical value of the second delay parameter.
Wherein, the account form of described the second delay parameter includes but not limited to: when the RT value that equals to read and terminal switch between source base station and target BS the time value of deviated from network and value, i.e. RT+t
from net.
It should be noted that, described mobility anchor point device includes but not limited to: packet domain gateway, GGSN and P-GW etc.
Switch like this delay problem of the downlink data transmission causing for terminal, by the system delay parameter of the up acknowledge message of the identification downlink data that also adjustment receiving terminal transmits by forward-path in handoff procedure in real time automatically, effectively reduce the probability of the overtime re-transmission of tcp data bag, avoid system to occur congested, improved the runnability of system.
Step 102: before receiving the up acknowledge message of downlink data corresponding to definite number information, the downlink data for terminal sending from services sites SP receiving is stored, and returned to SP the acknowledge message that receives downlink data.
Wherein, in the acknowledge message of described downlink data, comprised the receive window sizes values of the current downlink data that can receive SP transmission.
Particularly, in step 102, because mobility anchor point device now no longer sends downlink data to base station side, therefore, the downlink data sending from services sites SP receiving is cached, and by by returning to comprise in the acknowledge message of SP downlink data current and can receive the receive window sizes values (0) of the downlink data that SP sends, inform that SP slows down issuing of downlink data.
Make like this between network-side service website SP and mobility anchor point device data volume balanced.
Step 103: in the time receiving the up acknowledge message of downlink data corresponding to definite number information, trigger the target BS of opening to described terminal and send downlink data.
Particularly, in step 103, after terminal completes switching, the downlink data sending from mobility anchor point device of buffer memory is sent to target BS by source base station, by target BS, the downlink data of the described buffer memory receiving sent to terminal.
Terminal, in the time receiving the downlink data of described buffer memory that target BS sends, is returned to the up acknowledge message corresponding to downlink data of buffer memory described in this to mobility anchor point device.
More preferably, the delay parameter of the up acknowledge message of mobility anchor point device to the downlink data receiving judges, when the delay parameter of up definite message of the downlink data receiving in judgement is not more than the first time delay threshold value of setting, determine that downlink data corresponding to this up acknowledge message sends successfully; When the delay parameter of the up definite message receiving in judgement is greater than the first time delay threshold value of setting, determine that downlink data corresponding to this up acknowledge message sends unsuccessfully, need to resend, wherein, the downlink data receiving described in refers to the downlink data of transmitting time before the transmitting time of downlink data corresponding to definite number information.
Wherein, the first time delay threshold value of described setting is the RT value, the terminal that the read time value of deviated from network and this downlink data are sent to individual event time delay value between source base station by network side and the value that switches between source base station and target BS, the first time delay threshold value=RT value+t setting
from net+ t
net-Ji.
In the time receiving the up acknowledge message of downlink data corresponding to definite number information, confirm that the downlink data transmitting by forward-path is all sent, and the transmission path mode of downlink data is converted to straight hair path transmission mode, trigger the target BS of opening to described terminal and send downlink data.
Step 104: after the downlink data of judgement storage is sent, the receive window sizes values after adjusting is reverted to the receive window sizes values of setting.
Particularly, in step 104, mobility anchor point device is excessive for fear of the up acknowledge message quantity receiving in the unit interval, send the downlink data of storage to the target BS of described terminal, the up acknowledge message of the downlink data for storage that receiving terminal sends, and according to the data volume of the downlink data of current storage, adjust the receive window sizes values of the current downlink data that can receive SP transmission.
Wherein, the data volume of the downlink data of described current storage refers to what basis was determined in the data volume of the downlink data that receives the data volume of the downlink data of storing before the up acknowledge message of downlink data corresponding to definite number information and sent to target BS.
Particularly, the adjustment mode of described receive window sizes values includes but not limited to: the receive window sizes values after adjustment is the difference that receiving terminal sends the data volume of the receive window sizes values of up acknowledge message and the downlink data of current storage.
Send to target BS in the process of downlink data at mobility anchor point device, monitoring buffer memory in terminal switching process and receive the data volume of the downlink data of storing before the up acknowledge message of definite downlink data, when storage downlink data be sent in, receive window sizes values after adjusting is reverted to the receive window sizes values of setting, recover the transmission of downlink data and the reception flow process of up acknowledge message.
More preferably, after receiving the up acknowledge message of downlink data corresponding to definite number information, in the time that the delay parameter of up definite message of the downlink data of the storage receiving is not more than the second time delay threshold value of setting, determine that the downlink data of storage corresponding to this up acknowledge message sends successfully; In the time that the delay parameter of up definite message corresponding to the downlink data of the storage receiving is greater than the second time delay threshold value of setting, determine that the downlink data of storage corresponding to this up acknowledge message sends unsuccessfully, need to resend.
Wherein, the setting means of the second time delay threshold value of described setting includes but not limited to: the second time delay threshold value be the RT value that reads and terminal between source base station and target BS, switch deviated from network time value and value, i.e. second time delay threshold value=RT+t
from.
More preferably, in the downlink data of storing in judgement is sent, the delay parameter of the up acknowledge message of the downlink data receiving is reverted to delay parameter RT value, recover the delay parameter information of downlink data transmission, wherein, the downlink data receiving described in is the downlink data again receiving after the downlink data of storage is sent.
By the scheme of the embodiment of the present invention one, the transmission path that mobility anchor point device receives the downlink data sending for the source base station of terminal switches message, and determine the number information that has sent to source base station and not yet received the downlink data of the up acknowledge message that described terminal returns, trigger to suspend and send downlink data, wherein, downlink data transmitting time corresponding to definite number information meets with the difference of the time that receives described transmission path switching message the time interval of setting, in the time receiving the up acknowledge message of downlink data corresponding to definite number information, trigger the target BS of opening to described terminal and send downlink data, compared with prior art, switch to packet domain gateway the process of target BS in terminal from source base station and determine in time the downlink data transmitting by forward-path, and in the time determining that the number information that has sent to source base station and not yet received the downlink data of up acknowledge message is the number information of last downlink data transmitting by forward-path, trigger to suspend to source base station and send downlink data, when in the time receiving the up acknowledge message of the corresponding downlink data of definite number information, packet domain gateway triggers to open to target BS and sends downlink data, the downlink data of effectively having avoided network side to send to target BS occurs out of order because of delay problem, and the downlink data that sends of the target BS that receives of terminal is same occurs out of order problem, further avoid the problem retransmitting due to out of order initiation downlink data, the efficiency of network data transmission and the utilance of Internet resources are improved.
Embodiment bis-:
As shown in Figure 3, be the flow chart of the method for a kind of transfer of data of the embodiment of the present invention two.The embodiment of the present invention two is the processing modes based on there is retransmission delay time problem in the embodiment of the present invention one in data transmission procedure, specifically comprises:
Step 201: in the time that the transmission path that receives the downlink data sending for the source base station of terminal switches message, determine the number information that has sent to source base station and not yet received the downlink data of the up acknowledge message that described terminal returns, and read the delay parameter RT value of current re-transmission timer.
More preferably, in the time receiving the transmission path switching message of downlink data of source base station transmission, trigger to suspend sending downlink data, the downlink data for this terminal from services sites SP transmission receiving is stored.
Step 202: the delay parameter of the up acknowledge message of the downlink data receiving is adjusted into the first delay parameter.
Wherein, the downlink data receiving described in refers to the downlink data of transmitting time before the transmitting time of downlink data corresponding to definite number information.
Particularly, the adjustment mode of described the first delay parameter includes but not limited to: when RT value, the terminal that equals to read switches between source base station and target BS the time value of deviated from network and this downlink data by network side be sent between the individual event time delay value between source base station and value, i.e. RT+t
from net+ t
net-Ji.
Step 203: before receiving the up acknowledge message of downlink data corresponding to definite number information, the delay parameter of up acknowledge message corresponding to the downlink data receiving is judged.
Wherein, the downlink data receiving described in refers to the downlink data of transmitting time before the transmitting time of downlink data corresponding to definite number information.
Particularly, when the delay parameter of up definite message that the downlink data that receives in judgement is corresponding is not more than the first time delay threshold value of setting, determine that downlink data corresponding to this up acknowledge message sends successfully; When the delay parameter of up definite message that the downlink data that receives in judgement is corresponding is greater than the first time delay threshold value of setting, determine that downlink data corresponding to this up acknowledge message sends unsuccessfully, need to resend.
Wherein, RT value, the terminal that the first time delay threshold value of described setting equals the to read time value of deviated from network and this downlink data are sent to individual event time delay value between source base station by network side and the value that switches between source base station and target BS, the first time delay threshold value=RT value+t setting
from net+ t
net-Ji.
Step 204: before receiving the up acknowledge message of downlink data corresponding to definite number information, the delay parameter of the up acknowledge message of the downlink data of storage is adjusted into the second delay parameter.
Wherein, the account form of described the second delay parameter includes but not limited to: when the RT value that equals to read and terminal switch between source base station and target BS the time value of deviated from network and value, i.e. RT+t
from net.
Step 205: the delay parameter to up acknowledge message corresponding to the downlink data of the storage receiving judges.
Particularly, in step 205, in the time that the delay parameter of up definite message corresponding to the downlink data of the storage receiving is not more than the second time delay threshold value of setting, determine that the downlink data of storage corresponding to this up acknowledge message sends successfully; In the time that the delay parameter of up definite message corresponding to the downlink data of the storage receiving is greater than the second time delay threshold value of setting, determine that the downlink data of storage corresponding to this up acknowledge message sends unsuccessfully, need to resend.
Wherein, the setting means of the second time delay threshold value of described setting includes but not limited to: the second time delay threshold value be the RT value that reads and terminal between source base station and target BS, switch deviated from network time value and value, i.e. second time delay threshold value=RT+t
from net.
Step 206: after the downlink data of judgement storage is sent, the delay parameter of the up acknowledge message of the downlink data receiving is reverted to delay parameter RT value.
Wherein, the downlink data receiving described in is the downlink data again receiving after the downlink data of storage is sent.
By the scheme of the embodiment of the present invention two, switch the delay problem of the downlink data transmission causing for terminal, by system identification the real-time delay parameter of adjusting the up acknowledge message that downlink data is corresponding automatically, effectively reduce the probability of the overtime re-transmission of tcp data bag, avoid system to occur congested, improved the runnability of system.
Embodiment tri-:
As shown in Figure 4, be the structural representation of the equipment of a kind of transfer of data of the embodiment of the present invention three, described equipment comprises: determination module 11 and data transmission module 12, wherein:
Determination module 11, switch message for the transmission path that receives the downlink data sending for the source base station of terminal, and determine the number information that has sent to source base station and not yet received the downlink data of the up acknowledge message that described terminal returns, trigger to suspend and send downlink data, wherein, downlink data transmitting time corresponding to definite number information meets with the difference of the time that receives described transmission path switching message the time interval of setting;
Data transmission module 12, in the time receiving the up acknowledge message of downlink data corresponding to definite number information, triggers the target BS of opening to described terminal and sends downlink data.
More preferably, described equipment also comprises: memory module 13 and sending module 14, wherein:
Memory module 13, for after triggering time-out transmission downlink data, before receiving the up acknowledge message of downlink data corresponding to definite number information, stores the downlink data for this terminal sending from services sites SP receiving;
Sending module 14, for return to the acknowledge message that receives downlink data to SP, wherein, has comprised the receive window sizes values of the current downlink data that can receive SP transmission in the acknowledge message of described downlink data.
More preferably, described equipment also comprises: adjusting module 15, wherein:
Adjusting module 15, the up acknowledge message of the downlink data for storage sending for receiving terminal, and according to the data volume of the downlink data of current storage, adjust the receive window sizes values of the current downlink data that can receive SP transmission, wherein, the data volume of the downlink data of described current storage refers to what basis was determined in the data volume of the downlink data that receives the data volume of the downlink data of storing before the up acknowledge message of downlink data corresponding to definite number information and sent to target BS.
More preferably, described equipment also comprises: the first update module 16, wherein:
The first update module 16, in being sent at the downlink data of determining storage, reverts to the receive window sizes values after adjusting the receive window sizes values of setting.
More preferably, described equipment also comprises: read module 17 and the first adjusting module 18, wherein:
Read module 17, for switching when message at the transmission path that receives the downlink data that source base station sends, read current re-transmission timer delay parameter RT value;
The first adjusting module 18, for the delay parameter of the up acknowledge message of the downlink data receiving is adjusted into the first delay parameter, wherein, the downlink data receiving described in refers to the downlink data of transmitting time before the transmitting time of downlink data corresponding to definite number information.
More preferably, described equipment also comprises: the second adjusting module 19, wherein:
The second adjusting module 19, for before receiving the up acknowledge message of downlink data corresponding to definite number information, the delay parameter of the up acknowledge message of the downlink data of the storage receiving is adjusted into the second delay parameter, wherein: the numerical value of the first delay parameter is greater than the numerical value of the second delay parameter.
More preferably, described equipment also comprises: the second update module 20, wherein:
The second update module 20, in being sent at the downlink data of determining storage, the delay parameter of the up acknowledge message of the downlink data receiving is reverted to delay parameter RT value, wherein, the downlink data receiving described in is the downlink data again receiving after the downlink data of storage is sent.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (14)
1. a method for transfer of data, is characterized in that, comprising:
The transmission path that mobility anchor point device receives the downlink data sending for the source base station of terminal switches message, and determine the number information that has sent to source base station and not yet received the downlink data of the up acknowledge message that described terminal returns, trigger to suspend and send downlink data, wherein, downlink data transmitting time corresponding to definite number information meets with the difference of the time that receives described transmission path switching message the time interval of setting;
In the time receiving the up acknowledge message of downlink data corresponding to definite number information, trigger the target BS of opening to described terminal and send downlink data.
2. the method for claim 1, is characterized in that, after triggering time-out transmission downlink data, before receiving the up acknowledge message of downlink data corresponding to definite number information, also comprises:
The downlink data for this terminal sending from services sites SP receiving is stored;
Return to the acknowledge message that receives downlink data to SP, wherein, in the acknowledge message of described downlink data, comprised the receive window sizes values of the current downlink data that can receive SP transmission.
3. method as claimed in claim 2, is characterized in that, is triggering unlatching after target BS sends downlink data, and described method also comprises:
The up acknowledge message of the downlink data for storage that receiving terminal sends, and according to the data volume of the downlink data of current storage, adjust the receive window sizes values of the current downlink data that can receive SP transmission, wherein, the data volume of the downlink data of described current storage refers to what basis was determined in the data volume of the downlink data that receives the data volume of the downlink data of storing before the up acknowledge message of downlink data corresponding to definite number information and sent to target BS.
4. method as claimed in claim 3, is characterized in that, described method also comprises:
In the downlink data of determining storage is sent, the receive window sizes values after adjusting is reverted to the receive window sizes values of setting.
5. the method for claim 1, is characterized in that, in the time receiving the transmission path switching message of downlink data of source base station transmission, described method also comprises:
Read current re-transmission timer delay parameter RT value, and the delay parameter of the up acknowledge message of the downlink data receiving is adjusted into the first delay parameter, wherein, the downlink data receiving described in refers to the downlink data of transmitting time before the transmitting time of downlink data corresponding to definite number information.
6. method as claimed in claim 2, is characterized in that, before receiving the up acknowledge message of downlink data corresponding to definite number information, described method also comprises:
The delay parameter of the up acknowledge message of the downlink data of the storage receiving is adjusted into the second delay parameter, wherein: the numerical value of the first delay parameter is greater than the numerical value of the second delay parameter.
7. method as claimed in claim 6, is characterized in that, described method also comprises:
Determine storage downlink data be sent in, the delay parameter of the up acknowledge message of the downlink data receiving is reverted to delay parameter RT value, wherein, the downlink data receiving described in is the downlink data again receiving after the downlink data of storage is sent.
8. an equipment for transfer of data, is characterized in that, comprising:
Determination module, switch message for the transmission path that receives the downlink data sending for the source base station of terminal, and determine the number information that has sent to source base station and not yet received the downlink data of the up acknowledge message that described terminal returns, trigger to suspend and send downlink data, wherein, downlink data transmitting time corresponding to definite number information meets with the difference of the time that receives described transmission path switching message the time interval of setting;
Data transmission module, in the time receiving the up acknowledge message of downlink data corresponding to definite number information, triggers the target BS of opening to described terminal and sends downlink data.
9. equipment as claimed in claim 2, is characterized in that, described equipment also comprises:
Memory module, for after triggering time-out transmission downlink data, before receiving the up acknowledge message of downlink data corresponding to definite number information, stores the downlink data for this terminal sending from services sites SP receiving;
Sending module, for return to the acknowledge message that receives downlink data to SP, wherein, has comprised the receive window sizes values of the current downlink data that can receive SP transmission in the acknowledge message of described downlink data.
10. equipment as claimed in claim 9, is characterized in that, described equipment also comprises:
Adjusting module, the up acknowledge message of the downlink data for storage sending for receiving terminal, and according to the data volume of the downlink data of current storage, adjust the receive window sizes values of the current downlink data that can receive SP transmission, wherein, the data volume of the downlink data of described current storage refers to what basis was determined in the data volume of the downlink data that receives the data volume of the downlink data of storing before the up acknowledge message of downlink data corresponding to definite number information and sent to target BS.
11. equipment as claimed in claim 10, is characterized in that, described equipment also comprises:
The first update module, in being sent at the downlink data of determining storage, reverts to the receive window sizes values after adjusting the receive window sizes values of setting.
12. equipment as claimed in claim 8, is characterized in that, described equipment also comprises:
Read module, for switching when message at the transmission path that receives the downlink data that source base station sends, read current re-transmission timer delay parameter RT value;
The first adjusting module, for the delay parameter of the up acknowledge message of the downlink data receiving is adjusted into the first delay parameter, wherein, the downlink data receiving described in refers to the downlink data of transmitting time before the transmitting time of downlink data corresponding to definite number information.
13. equipment as claimed in claim 9, is characterized in that, described equipment also comprises:
The second adjusting module, for before receiving the up acknowledge message of downlink data corresponding to definite number information, the delay parameter of the up acknowledge message of the downlink data of the storage receiving is adjusted into the second delay parameter, wherein: the numerical value of the first delay parameter is greater than the numerical value of the second delay parameter.
14. equipment as claimed in claim 13, is characterized in that, described equipment also comprises:
The second update module, in being sent at the downlink data of determining storage, the delay parameter of the up acknowledge message of the downlink data receiving is reverted to delay parameter RT value, wherein, the downlink data receiving described in is the downlink data again receiving after the downlink data of storage is sent.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455133A (en) * | 2016-10-31 | 2017-02-22 | 华为技术有限公司 | Link keeping method and user device |
| CN106506124A (en) * | 2015-09-07 | 2017-03-15 | 中国移动通信集团公司 | Retransmit message and determine method and device |
| CN107333102A (en) * | 2017-06-30 | 2017-11-07 | 普联技术有限公司 | Method, device and the computer-readable recording medium of data during restorer is powered off |
| CN109117306A (en) * | 2018-07-24 | 2019-01-01 | 广东浪潮大数据研究有限公司 | A kind of method and device based on object read-write time delay adjustment data resume speed |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212790A (en) * | 2006-12-25 | 2008-07-02 | 中兴通讯股份有限公司 | Data packet route switching method in mobile communication system |
| US20080310367A1 (en) * | 2007-06-18 | 2008-12-18 | Qualcomm Incorporated | Method and apparatus for pdcp reordering at handoff |
| CN101998547A (en) * | 2009-08-18 | 2011-03-30 | 华为技术有限公司 | Data forwarding method, base station and relay station |
| CN102223680A (en) * | 2010-04-16 | 2011-10-19 | 华为技术有限公司 | Flow control method, equipment and system |
| CN102905323A (en) * | 2011-07-29 | 2013-01-30 | 中兴通讯股份有限公司 | Processing method and processing system for nondestructive switching of relay node user interfaces |
-
2013
- 2013-03-29 CN CN201310106872.1A patent/CN104080129B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212790A (en) * | 2006-12-25 | 2008-07-02 | 中兴通讯股份有限公司 | Data packet route switching method in mobile communication system |
| US20080310367A1 (en) * | 2007-06-18 | 2008-12-18 | Qualcomm Incorporated | Method and apparatus for pdcp reordering at handoff |
| CN101998547A (en) * | 2009-08-18 | 2011-03-30 | 华为技术有限公司 | Data forwarding method, base station and relay station |
| CN102223680A (en) * | 2010-04-16 | 2011-10-19 | 华为技术有限公司 | Flow control method, equipment and system |
| CN102905323A (en) * | 2011-07-29 | 2013-01-30 | 中兴通讯股份有限公司 | Processing method and processing system for nondestructive switching of relay node user interfaces |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106506124A (en) * | 2015-09-07 | 2017-03-15 | 中国移动通信集团公司 | Retransmit message and determine method and device |
| CN106506124B (en) * | 2015-09-07 | 2019-09-13 | 中国移动通信集团公司 | It retransmits message and determines method and device |
| CN106455133A (en) * | 2016-10-31 | 2017-02-22 | 华为技术有限公司 | Link keeping method and user device |
| CN106455133B (en) * | 2016-10-31 | 2019-11-29 | 华为技术有限公司 | A kind of link keeping method and user equipment |
| CN107333102A (en) * | 2017-06-30 | 2017-11-07 | 普联技术有限公司 | Method, device and the computer-readable recording medium of data during restorer is powered off |
| CN107333102B (en) * | 2017-06-30 | 2019-10-29 | 普联技术有限公司 | The method, apparatus and computer readable storage medium of data during restorer powers off |
| CN109117306A (en) * | 2018-07-24 | 2019-01-01 | 广东浪潮大数据研究有限公司 | A kind of method and device based on object read-write time delay adjustment data resume speed |
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|---|---|
| CN104080129B (en) | 2017-06-23 |
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