CN101605359B - Method for transmitting data in switching process, wireless entities and base station - Google Patents
Method for transmitting data in switching process, wireless entities and base station Download PDFInfo
- Publication number
- CN101605359B CN101605359B CN2009101083481A CN200910108348A CN101605359B CN 101605359 B CN101605359 B CN 101605359B CN 2009101083481 A CN2009101083481 A CN 2009101083481A CN 200910108348 A CN200910108348 A CN 200910108348A CN 101605359 B CN101605359 B CN 101605359B
- Authority
- CN
- China
- Prior art keywords
- wireless entity
- data
- wireless
- entity
- downlink data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The embodiment of the invention discloses a method for transmitting data in a switching process, wireless entities and a base station. The method comprises that: a second wireless entity receives the data sent by a first wireless entity through a preset data link, wherein the data are uplink data detained in a buffer area of the first wireless entity after the switching process of the first wireless entity begins; and the second wireless entity sends the uplink data to a service base station of the second wireless entity, the second wireless entity carries data marks when sending the uplink data to the service base station of the second wireless entity, and the data marks indicate that the uplink data are uplink data belonging to the first wireless entity. Through the method, the wireless entities and the base station disclosed by the embodiment of the invention can achieve the effect that when the wireless entities are switched, a backup wireless entity replaces the wireless entities to transceiver the data so as to reduce the loss of the data during the switching process and reduce the time delay for receiving or sending the data during the switching of the wireless entities.
Description
Technical field
The invention belongs to communication technical field, relate in particular to method, wireless entity and the base station of transmitting data in a kind of handoff procedure.
Background technology
In mobile communication system, the terminal of high-speed motion need frequently be switched between different base stations.For TDD (Time Division Duplex, time division duplex) communication system and OFDM (orthogonalfrequency division multiple access, OFDM) communication system, usually all be the mode of taking direct-cut operation in the prior art, for example, diminish direct-cut operation or harmless direct-cut operation.Diminish direct-cut operation and be meant and lose the data that originally do not send in the handoff procedure, begin to transmit new data after switching to target BS, terminal is professional can the interruption a period of time in diminishing direct-cut operation, and can cause a large number of services loss of data.Harmless direct-cut operation then is to diminish a kind of switching mode of more optimizing on the basis of direct-cut operation, harmless direct-cut operation is meant in the process that terminal is switched, pass to new serving BS being trapped in the data that belong to this terminal in the former serving BS earlier, after terminal and new serving BS connect, send this part data to terminal by new serving BS again.Though mode by harmless direct-cut operation has solved terminal causes a large number of services loss of data in handoff procedure problem to a great extent, this mode still can cause bigger time delay.
Summary of the invention
The embodiment of the invention provides in a kind of handoff procedure the scheme of transmitting data, can prevent losing of data in the handoff procedure by this scheme, and the time delay that can reduce to receive data in the wireless entity handoff procedure or send data.
The embodiment of the invention provides the method for transmitting data in a kind of handoff procedure, and this method may further comprise the steps:
Second wireless entity receives the data that first wireless entity sends by default data link, and described data are the upstream data that is trapped in after the first wireless entity handoff procedure begins in the first wireless entity buffering area;
Described second wireless entity sends to described upstream data the serving BS of second wireless entity, described second wireless entity carries Data Identification when described upstream data is sent to the serving BS of second wireless entity, and it is the upstream data that belongs to first wireless entity that described Data Identification is indicated this upstream data.
Embodiments of the invention also provide the method for transmitting data in the another kind of handoff procedure, and this method may further comprise the steps:
After handoff request message from first wireless entity is received in first base station, obtain the backup wireless entity relevant information of described first wireless entity;
If the backup wireless entity of described first wireless entity is second wireless entity, and the serving BS of second wireless entity is described first base station, then described first base station sends to second wireless entity with the downlink data that belongs to described first wireless entity in the buffering area, by described second wireless entity downlink data of described first wireless entity is issued described first wireless entity, wherein, described first base station carries Data Identification when the downlink data that belongs to described first wireless entity in the buffering area is sent to second wireless entity, it is the downlink data that belongs to first wireless entity that described Data Identification is indicated this downlink data;
If the backup wireless entity of described first wireless entity is second wireless entity, and the serving BS of second wireless entity is second base station, then described first base station is transmitted to described second base station with the downlink data that belongs to described first wireless entity in the buffering area, the downlink data that will belong to described first wireless entity by described second base station sends to described second wireless entity and by described second wireless entity downlink data of described first wireless entity is issued described first wireless entity, carry described Data Identification when wherein, described second base station downlink data that will belong to described first wireless entity sends to described second wireless entity.
In addition, embodiments of the invention also provide a kind of wireless entity, and this wireless entity comprises:
Receiving element is used for receiving the data that another wireless entity sends by default data link, and described data are the upstream data that is trapped in after described another wireless entity handoff procedure begins in described another wireless entity buffering area;
Transmitting element is used for described upstream data is sent to the serving BS of described wireless entity;
Described transmitting element carries Data Identification when described upstream data is sent to the serving BS of described wireless entity, and it is the upstream data that belongs to described another wireless entity that described Data Identification is indicated this upstream data.
The embodiment of the invention also provides another wireless entity, and this wireless entity comprises:
Receiving element, be used to receive the downlink data that belongs to another wireless entity that the serving BS of described wireless entity issues, described serving BS carries Data Identification when issuing the downlink data that belongs to another wireless entity, it is the downlink data that belongs to described another wireless entity that described Data Identification is indicated this downlink data;
Transmitting element, the downlink data that belongs to described another wireless entity that is used for receiving element is received is transmitted to described another wireless entity by default data link.
The embodiment of the invention also provides a kind of base station, and this base station comprises:
Receiving element is used to receive the handoff request message from first wireless entity;
Information acquisition unit after being used for receiving element and receiving handoff request message from first wireless entity, is obtained the backup wireless entity relevant information of described first wireless entity;
Transmitting element, the backup wireless entity that is used for when described first wireless entity is second wireless entity, and when the serving BS of the serving BS of second wireless entity and first wireless entity is identical, the downlink data that belongs to described first wireless entity in the buffering area is sent to second wireless entity, describedly carry Data Identification when the downlink data that belongs to described first wireless entity in the buffering area is sent to second wireless entity, it is the downlink data that belongs to first wireless entity that described Data Identification is indicated this downlink data;
Described transmitting element also is used for, when the backup wireless entity of described first wireless entity is second wireless entity, and the serving BS of the serving BS of second wireless entity and first wireless entity is not simultaneously, the downlink data that belongs to described first wireless entity in the buffering area is transmitted to the serving BS of described second wireless entity, the downlink data that serving BS by described second wireless entity will belong to described first wireless entity sends to second wireless entity, and the downlink data that the serving BS of described second wireless entity will belong to described first wireless entity carries described Data Identification when sending to described second wireless entity.
The scheme of data is provided in the handoff procedure that provides by the invention described above embodiment, can realize when first wireless entity switches, by its backup wireless entity is that second wireless entity replaces the first wireless entity transceive data, reduced losing of data in the handoff procedure thus, and further reduced first wireless entity receives data or sends data in handoff procedure time delay, reduced and switched the influence that service feature is brought.
Description of drawings
Fig. 1 is the schematic flow sheet of the inventive method embodiment one forwarding uplink data;
Fig. 2 is the schematic flow sheet of the inventive method embodiment two converting downlink data;
Fig. 3 is the schematic flow sheet of the inventive method embodiment three forwarding uplink datas and downlink data;
Fig. 4 is the schematic flow sheet of the inventive method embodiment four forwarding uplink datas and downlink data;
Fig. 5 is the structural representation of a kind of wireless entity of the embodiment of the invention;
Fig. 6 is the structural representation of the another kind of wireless entity of the embodiment of the invention;
Fig. 7 is the structural representation of a kind of base station of the embodiment of the invention.
Embodiment
The embodiment of the invention provides in a kind of handoff procedure the scheme of transmitting data, and this scheme can prevent losing of data in the handoff procedure, and can reduce wireless entity receives data or transmission data in handoff procedure time delay.
Referring to shown in Figure 1, the backup wireless entity of assumed wireless entity 1 is a wireless entity 2, the serving BS of wireless entity 1 is that the serving BS of BS1 and wireless entity 2 can be BS1, also can be other base stations, as BS2, then the embodiment of the invention one wireless entity 1 comprises by the method for wireless entity 2 forwarding uplink datas in handoff procedure:
Step 101: wireless entity 2 receives the data that wireless entity 1 sends by default data link, and this partial data is the upstream data that is trapped in after wireless entity 1 handoff procedure begins in wireless entity 1 buffering area;
Step 102: wireless entity 2 will send to the serving BS of wireless entity 2 from the data that wireless entity 1 receives, and wireless entity 2 carries Data Identification when this partial data is sent to the serving BS of wireless entity 2, and it is the upstream data that belongs to wireless entity 1 that this Data Identification is indicated this partial data.
Above-mentioned Data Identification can be provided with by wireless entity 1, also can be provided with by wireless entity 2.For example: this Data Identification can be provided with before sending described data for wireless entity 1, also can be that wireless entity 2 is provided with by wireless entity 2 when receiving the data that wireless entity 1 send.
Above-mentioned is wireless entity 1 method by wireless entity 2 forwarding uplink datas in handoff procedure, and referring to Figure 2 shows that the embodiment of the invention two wireless entity 1 method by wireless entity 2 converting downlink data in handoff procedure, this method comprises:
Step 201: the serving BS BS1 of wireless entity 1 is after receiving the handoff request message of wireless entity 1, obtain the backup wireless entity relevant information of described wireless entity, if the backup wireless entity of wireless entity 1 is a wireless entity 2, and the serving BS of wireless entity 2 is BS1, and then execution in step 202; If the backup wireless entity of wireless entity 1 is a wireless entity 2, and the serving BS of wireless entity 2 is BS2, and then execution in step 203;
In the above-mentioned steps 201, the backup wireless entity information of wireless entity 1 can be stored among the BS1, also can be stored in other entities.Receive the handoff request message of wireless entity 1 as BS1 after, can carry out alternately according to the information of BS1 storage inside or by entity, obtain the backup wireless entity relevant information of described wireless entity 1 with the backup wireless entity relevant information that stores wireless entity 1.Backup wireless entity relevant information comprises the serving BS information of backup wireless entity information and this backup wireless entity at least.
Step 202:BS1 sends to wireless entity 2 with the downlink data that belongs to wireless entity 1 in the buffering area, wherein, BS1 carries Data Identification when the downlink data that belongs to wireless entity 1 in the buffering area is sent to wireless entity 2, it is the downlink data that belongs to wireless entity 1 that this Data Identification is indicated this part downlink data;
Step 203:BS1 is transmitted to base station BS 2 with the downlink data that belongs to wireless entity 1 in the buffering area, the downlink data that will be belonged to wireless entity 1 by base station BS 2 sends to wireless entity 2, the downlink data that described BS2 will belong to wireless entity 1 carries Data Identification when sending to wireless entity 2, and it is the downlink data that belongs to wireless entity 1 that this Data Identification is indicated this part downlink data.
Data Identification in the step 203 is that BS1 or BS2 are provided with, for example, can be BS2 receive that BS1 sends belong to the data of MS1 the time be provided with by BS2, also can be downlink data that BS1 will belong to MS1 when sending to BS2, be provided with by BS1.
Said method further comprises:
Step 204: the logical default data link of downlink data that wireless entity 2 will belong to wireless entity 1 is transmitted to wireless entity 1.
The method that provides by the invention described above embodiment, wireless entity 1 can back up wireless entity by it in handoff procedure be that wireless entity 2 replaces this wireless entity 1 to receive or send data, prevent losing of data in the handoff procedure thus, and can reduce wireless entity 1 receives data or sends data in handoff procedure time delay.
For making the solution of the present invention clearer, will describe in detail method of the present invention by embodiment more specifically below.
Assumed wireless entity 1 is a terminal MS 1, and wireless entity 2 is a terminal MS 2, and MS1 and MS2 are mutually redundant two terminals, has default data link between MS1 and the MS2, and can transmit data mutually by this data link.MS1 and MS2 were operated under the base station 1 (BS1) before switching, and MS1 and MS2 are in moving process, and MS1 switches earlier, and then referring to shown in Figure 3, the method for the embodiment of the invention three is as follows:
Step 301:MS1 sends handoff request message to BS1;
Step 302:BS1 receives to the handoff request message of MS1, determine that MS1 need switch to target BS BS2, then BS1 carries out alternately according to the back-up terminals information of the MS1 of its inside preservation or by the entity with the back-up terminals information of preserving MS1, the back-up terminals of knowing MS1 is MS2, and the MS2 work at present is base station BS 1 time.
Above-mentioned BS1 determines that by carrying out information interaction with MS1 MS1 need switch to target BS BS2 after receiving handoff request message from MS1.
Step 303:BS1 sends handoff request message to BS2, and switching has taken place the above-mentioned MS1 of notice BS2.
Step 304:BS2 returns switching response message to BS1.
Step 305:BS1 sends switching response message to MS1, and indication MS1 can switch to BS2 in this switching response message; And BS1 notice GW (GateWay, gateway) stops to issue to BS1 the data of MS1, and follow-up downlink data with MS1 sends to BS2.
Step 306:MS1 sends handoff notification message to BS1, and this handoff notification message is used to notify BS1, and MS1 disconnection soon is connected with BS1's, switches to BS2.
The above-mentioned flow process of initiate switching for MS1 when MS1 disconnects with after the connection of BS1, realizes by following flow process for the forwarding of upstream data or downlink data.
(1) processing for downlink data comprises the steps:
Step 307-A:BS1 sends a notification message to MS2, and described notification message is used to notify MS2 to begin to receive the downlink data that belongs to MS1;
Step 308-A:MS2 receives the downlink data that belongs to MS1 that BS1 sends, and wherein, BS1 sends in the downlink data of MS2 and carries Data Identification, and this Data Identification is used to represent that this partial data is the data that belong to MS1.
Step 309-A:MS2 will be transmitted to MS1 by default data link from the downlink data that belongs to MS1 that BS1 receives according to above-mentioned Data Identification.
The downlink data that above-mentioned MS2 will receive from BS1 can be that MS1 carries out handoff procedure by the step that default data link is transmitted to MS1, also can be to carry out after the MS1 switching is finished.If carry out after switching is finished, then can be divided into two kinds of situations: a kind of MS1 of being begins the transceive data by BS2 after receiving and sending data from MS2 again; Another kind is that MS1 receives from MS2 on one side and sends data, on one side by the BS2 transceive data.For example, (Service Data Unit, Service Data Unit) reorders if the service surface of MS1 is not supported SDU, and then MS1 need receive after the notice of " remaining data is sent completely " that MS2 sends, could pass through the BS2 transceive data; If service surface supports that SDU reorders, then MS1 can pass through the BS2 transceive data on one side, Yi Bian receive the data that belong to MS1 that MS2 sends.
Above-mentioned default data link can be wired connection, as netting twine, optical fiber etc., equally also can be wireless connections, as infrared interface, and bluetooth etc.
(2) processing for upstream data comprises the steps:
The upstream data that step 307-B:MS1 will be trapped in the buffering area of MS1 is forwarded to MS2 by default data link.
Above-mentioned default data link can be wired connection, as netting twine, optical fiber etc., equally also can be wireless connections, as infrared interface, and bluetooth etc.
Alternatively, before step 307-B, MS1 can send a notification message earlier has data to need to transmit to MS2 with notice MS2.In addition, MS1 also can not notify MS2, directly upstream data is sent to entity 2, and entity 2 will all be judged as by the data that preset link receives need be for the data of MS1 forwarding.
Step 308-B:MS2 receives that the Radio Link by oneself sends to BS1 behind the upstream data that above-mentioned MS1 sends, wherein, MS2 carries Data Identification when transmission belongs to the upstream data of MS1, this Data Identification is used to represent that this partial data is the data that belong to MS1.
Above-mentioned Data Identification is that MS1 or MS2 are provided with.For example, this Data Identification can be MS1 when in step 307-B the upstream data in the buffering area being forwarded to MS2 by default data link, is added by MS1; When also can be the data in step 308-B MS1 sent of MS2 by oneself Radio Link send to BS1, add by MS2.
Above-mentioned Data Identification can realize that for example, MS2 identifies with two IE in MAC layer the inside by the MAC layer, and first IE is used to represent that these data are that group's other-end is transmitted, and second IE can be used to represent the IP address of MS1, connection ID or MAG address.Specific implementation has a variety of, is not described in detail in this, and those skilled in the art can be provided with flexibly according to the scheme of present embodiment.
After step 309-B:BS1 received the upstream data of above-mentioned MS2 transmission, identifying this upstream data according to Data Identification was the data that belong to MS1, and then BS1 upwards transmits these data as the data of MS1.
Above-mentioned upwards the forwarding is specially to MSC (Mobile Switching Center, mobile switching centre), BSC (base station controller, base station controller) or RNC forwardings such as (Radio Network Controller, radio network controllers).
Need to prove that above-mentioned process that downlink data is handled and process that downlink data is handled also can be carried out in no particular order simultaneously.
After switching was finished, MS1 was by the BS2 transceive data, and its detailed process is not described in detail in this.
The foregoing description one has been introduced wireless entity 1 and wireless entity 2 and has been worked in situation under the same base station, works in the situation of different base station for wireless entity 1 and wireless entity 2, will describe by specific embodiment below.
Assumed wireless entity 1 is a terminal MS 1, and wireless entity 2 is a terminal MS 2, before MS1 switches, MS2 has switched to earlier under the BS2, i.e. MS1 work at present is under BS1, and MS2 is operated under the BS2, when then MS1 switched, referring to shown in Figure 4, the flow process of the embodiment of the invention four was as follows:
Step 401:MS1 sends handoff request message to BS1.
Step 402:BS1 receives the handoff request message to MS1, determines that MS1 need switch to target BS BS2, and the back-up terminals that finds MS1 is MS2.
Above-mentioned BS1 determines that by carrying out information interaction with MS1 MS1 need switch to target BS BS2 after receiving handoff request message from MS1; The back-up terminals information of the MS1 that BS1 preserves according to its inside or undertaken alternately by the entity with the back-up terminals information of preserving MS1, the back-up terminals of knowing MS1 is MS2, and the MS2 work at present is base station BS 2 times.
Step 403:BS1 sends handoff request message to BS2, and switching has taken place the above-mentioned MS1 of notice BS2.
Step 404:BS2 returns switching response message to BS1.
Step 405:BS1 sends switching response message to MS1, and indication MS1 can switch to BS2 in this switching response message; And BS1 notice GW (GateWay, gateway) stops to issue to BS1 the data of MS1, and follow-up downlink data with MS1 sends to BS2.
Step 406:MS1 sends handoff notification message to BS1, and this handoff notification message is used to notify BS1, and MS1 disconnection soon is connected with BS1's, switches to BS2.
The above-mentioned flow process of initiate switching for MS1, its step 301～step 306 in embodiment three is similar, when MS1 disconnects with after the connection of BS1, realizes by following flow process for the forwarding of upstream data or downlink data.
(1) processing for downlink data comprises the steps:
Step 407-A:BS1 sends to BS2 with the downlink data that belongs to MS1 that is detained in the BS1 buffering area.
The downlink data that belongs to MS1 that step 408-A:BS2 will receive sends to MS2, carries described Data Identification in the described downlink data.Above-mentioned Data Identification is that BS1 or BS2 are provided with, for example, can be BS2 receive that BS1 sends belong to the data of MS1 the time be provided with by BS2, also can be downlink data that BS1 will belong to MS1 when sending to BS2, be provided with by BS1.
Step 409-A:MS2 will be transmitted to MS1 by default data link from the downlink data that belongs to MS1 that BS2 receives according to described Data Identification.
The downlink data that above-mentioned MS2 will receive from BS2 can be that MS1 carries out handoff procedure by the step that default data link is transmitted to MS1, MS1 is switched finish the back execution.If carry out after switching is finished, then can be divided into two kinds of situations: a kind of MS1 of being begins the transceive data by BS2 after receiving and sending data from MS2 again; Another kind is that MS1 receives from MS2 on one side and sends data, on one side by the BS2 transceive data.For example, (Service Data Unit, Service Data Unit) reorders if the service surface of MS 1 is not supported SDU, and then MS1 need receive after the notice of " remaining data is sent completely " that MS2 sends, could pass through the BS2 transceive data; If service surface supports that SDU reorders, then MS1 can pass through the BS2 transceive data on one side, Yi Bian receive the data that belong to MS1 that MS2 sends.
Above-mentioned default data link can be wired connection, as netting twine, optical fiber etc., equally also can be wireless connections, as infrared interface, and bluetooth etc.
(2) processing for upstream data comprises the steps:
The upstream data that step 407-B:MS1 will be trapped in the buffering area of MS1 is forwarded to MS2 by default data link.
Alternatively, before step 407-B, MS1 can send a notification message earlier has data to need to transmit to MS2 with notice MS2.In addition, MS1 also can not notify MS2, directly upstream data is sent to entity 2, and entity 2 will all be judged as by the data that preset link receives need be for the data of MS1 forwarding.
Step 408-B:MS2 receives that the Radio Link by oneself sends to BS2 behind the upstream data that above-mentioned MS1 sends, wherein, MS2 carries Data Identification when transmission belongs to the upstream data of MS1, this Data Identification is used to represent that this partial data is the data that belong to MS1.
Above-mentioned Data Identification is that MS1 or MS2 are provided with.For example, can be MS1 when in step 407-B, the upstream data in the buffering area being forwarded to MS2 by default data link, be provided with by MS1; When also can be the data in step 408-B MS1 sent of MS2 by oneself Radio Link send to BS1, be provided with by MS2.
Step 409-B:BS2 receives the upstream data that MS2 sends, and obtains the data that belong to MS1 according to the Data Identification that carries in the upstream data, and this partial data is upwards transmitted as the data of MS1.
Above-mentioned upwards the forwarding is specially to forwardings such as MSC, BSC or RNC.
Need to prove that above-mentioned process that downlink data is handled and process that downlink data is handled also can be carried out in no particular order simultaneously.
After switching was finished, MS1 was by the BS2 transceive data, and its detailed process is not described in detail in this.
The method that the foregoing description is described can be used for the scene that train, aircraft, rocket or artificial spacecraft etc. move at a high speed, for example, two wireless entity are installed aboard, the data in real time of train can be transferred to ground by these two wireless entity monitors, if a wireless entity switches in the train moving process, then can replace its transceive data by the another one wireless entity, reduce the time delay that receives data in the wireless entity handoff procedure or send data thus, satisfied the demand of train running data in real time monitoring.
Successively switch for two wireless entity are divided, different switching conditions is set for two wireless entity.
Above-mentioned switching condition can be geographical location information, for example, a built-in GPS (the Global Positioning System of difference in two wireless entity, global positioning system) module, when the GPS of wireless entity 1 module detects wireless entity 1 in-position 1, trigger wireless entity 1 and switch; When the GPS of wireless entity 2 module detects wireless entity 2 in-positions 2, trigger wireless entity 2 and switch.Above-mentioned switching condition also can be other wireless parameters, as long as wireless entity 1 and wireless entity were successively switched in 2 minutes.
The method that provides by the invention described above embodiment, wireless entity can back up wireless entity by it and replace this wireless entity to receive or the transmission data in handoff procedure, reduced losing of data in the handoff procedure thus, and the time delay that can reduce to receive data in the wireless entity handoff procedure or send data.
Except the method that the foregoing description is described, the embodiment of the invention also provides a kind of wireless entity, and referring to shown in Figure 5, this wireless entity comprises:
Receiving element 511 receives the data that wireless entity 1 sends by default data link when being used for wireless entity 1 and switching, and described data are the upstream data that is trapped in after wireless entity 1 handoff procedure begins in wireless entity 1 buffering area;
Transmitting element 512 is used for described upstream data is sent to the serving BS BS1 of wireless entity 2;
Described transmitting element carries Data Identification when described upstream data is sent to BS1, it is the upstream data that belongs to wireless entity 1 that described Data Identification is indicated this upstream data.
Alternatively, except above-mentioned receiving element 511 and transmitting element 512, this wireless entity can also comprise:
Sign is provided with unit 513, when being used for the data of described wireless entity 1 transmission of receiving element 511 receptions, described Data Identification is set.
The wireless entity that the invention described above embodiment describes can be portable terminal.
The embodiment of the invention also provides another wireless entity, and referring to shown in Figure 6, this wireless entity comprises:
Receiving element 611, be used to receive the downlink data that belongs to wireless entity 1 that serving BS issues, described serving BS carries Data Identification when issuing the downlink data that belongs to wireless entity 1, it is the downlink data that belongs to wireless entity 1 that described Data Identification is indicated this downlink data;
Transmitting element 612, the downlink data that belongs to wireless entity 1 that is used for receiving element is received is transmitted to described wireless entity 1 by default data link.
The wireless entity that the invention described above embodiment describes can be portable terminal.
Except the wireless entity that the invention described above embodiment provides, the embodiment of the invention also provides a kind of base station, and this base station comprises:
Receiving element 711 is used to receive the handoff request message from wireless entity 1;
Transmitting element 713, the backup wireless entity that is used for when described wireless entity 1 is a wireless entity 2, and when the serving BS of the serving BS of wireless entity 2 and wireless entity 1 is identical, the downlink data that belongs to described wireless entity 1 in the buffering area is sent to wireless entity 2, describedly carry Data Identification when the downlink data that belongs to described wireless entity 1 in the buffering area is sent to wireless entity 2, it is the downlink data that belongs to wireless entity 1 that described Data Identification is indicated this downlink data;
Described transmitting element 713 also is used for, when the backup wireless entity of described wireless entity 1 is a wireless entity 2, and the serving BS of the serving BS of wireless entity 2 and wireless entity 1 is not simultaneously, the downlink data that belongs to described wireless entity 1 in the buffering area is transmitted to the serving BS of described wireless entity 2, the downlink data that serving BS by described wireless entity 2 will belong to described wireless entity 1 sends to wireless entity 2, describedly carries described Data Identification when the downlink data that belongs to described wireless entity 1 in the buffering area is sent to the serving BS of described wireless entity 2.
The wireless entity or the base station that provide by the invention described above embodiment, can reduce losing of data in the handoff procedure, and further reduced wireless entity 1 receives data or sends data in handoff procedure time delay, reduced and switched the influence that service feature is brought.
The all or part of step that one of ordinary skill in the art will appreciate that realization said method embodiment, wireless entity or base station execution can instruct relevant hardware to finish by program.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. transmit the method for data in the handoff procedure, it is characterized in that described method comprises:
Second wireless entity receives the data that first wireless entity sends by default data link, and described data are the upstream data that is trapped in after the first wireless entity handoff procedure begins in the first wireless entity buffering area;
Described default data link is wired connection or wireless connections;
Described second wireless entity sends to described upstream data the serving BS of second wireless entity, described second wireless entity carries Data Identification when described upstream data is sent to the serving BS of second wireless entity, and it is the upstream data that belongs to first wireless entity that described Data Identification is indicated this upstream data.
2. method according to claim 1 is characterized in that, described method comprises:
Described Data Identification is by described first wireless entity or the described second wireless entity setting.
3. transmit the method for data in the handoff procedure, it is characterized in that described method comprises:
After handoff request message from first wireless entity is received in first base station, obtain the backup wireless entity relevant information of described first wireless entity;
If the backup wireless entity of described first wireless entity is second wireless entity, and the serving BS of second wireless entity is described first base station, then described first base station sends to second wireless entity with the downlink data that belongs to described first wireless entity in the buffering area, by described second wireless entity downlink data of described first wireless entity is issued described first wireless entity, wherein, described first base station carries Data Identification when the downlink data that belongs to described first wireless entity in the buffering area is sent to second wireless entity, it is the downlink data that belongs to first wireless entity that described Data Identification is indicated this downlink data;
If the backup wireless entity of described first wireless entity is second wireless entity, and the serving BS of second wireless entity is second base station, then described first base station is transmitted to described second base station with the downlink data that belongs to described first wireless entity in the buffering area, the downlink data that will belong to described first wireless entity by described second base station sends to described second wireless entity and by described second wireless entity downlink data of described first wireless entity is issued described first wireless entity, carry described Data Identification when wherein, described second base station downlink data that will belong to described first wireless entity sends to described second wireless entity;
Described second wireless entity is issued described first wireless entity with the downlink data of described first wireless entity and comprised: described second wireless entity sends to described first wireless entity by default data link with the downlink data of first wireless entity; Described default data link is wired connection or wireless connections.
4. method according to claim 3 is characterized in that, when described first base station is transmitted to described second base station with the downlink data that belongs to described first wireless entity in the buffering area, by described first base station or described second base station described Data Identification is set.
5. method according to claim 4 is characterized in that, the downlink data that described second wireless entity will belong to first wireless entity is transmitted to after first wireless entity, notifies the described first wireless entity data forwarding to finish.
6. a wireless entity is characterized in that, described wireless entity comprises:
Receiving element is used for receiving the data that another wireless entity sends by default data link, and described data are the upstream data that is trapped in after described another wireless entity handoff procedure begins in described another wireless entity buffering area;
Described default data link is wired connection or wireless connections;
Transmitting element is used for described upstream data is sent to the serving BS of described wireless entity;
Described transmitting element carries Data Identification when described upstream data is sent to the serving BS of described wireless entity, and it is the upstream data that belongs to described another wireless entity that described Data Identification is indicated this upstream data.
7. wireless entity as claimed in claim 6 is characterized in that, described wireless entity further comprises:
Sign is provided with the unit, when being used for the data of described another wireless entity transmission of receiving element reception, described Data Identification is set.
8. according to claim 6 or 7 described wireless entity, it is characterized in that described wireless entity is a portable terminal.
9. a wireless entity is characterized in that, described wireless entity comprises:
Receiving element, be used to receive the downlink data that belongs to another wireless entity that the serving BS of described wireless entity issues, described serving BS carries Data Identification when issuing the downlink data that belongs to another wireless entity, it is the downlink data that belongs to described another wireless entity that described Data Identification is indicated this downlink data;
Transmitting element, the downlink data that belongs to described another wireless entity that is used for receiving element is received is transmitted to described another wireless entity by default data link;
Described default data link is wired connection or wireless connections.
10. a base station is characterized in that, described base station comprises:
Receiving element is used to receive the handoff request message from first wireless entity;
Information acquisition unit after being used for receiving element and receiving handoff request message from first wireless entity, is obtained the backup wireless entity relevant information of described first wireless entity;
Transmitting element, the backup wireless entity that is used for when described first wireless entity is second wireless entity, and when the serving BS of the serving BS of second wireless entity and first wireless entity is identical, the downlink data that belongs to described first wireless entity in the buffering area is sent to second wireless entity, the described Data Identification that carries when the downlink data that belongs to described first wireless entity in the buffering area is sent to second wireless entity, so that described second wireless entity sends to described first wireless entity by default data link with the downlink data of described first wireless entity, it is the downlink data that belongs to first wireless entity that described Data Identification is indicated this downlink data;
Described transmitting element also is used for, when the backup wireless entity of described first wireless entity is second wireless entity, and the serving BS of the serving BS of second wireless entity and first wireless entity is not simultaneously, the downlink data that belongs to described first wireless entity in the buffering area is transmitted to the serving BS of described second wireless entity, the downlink data that serving BS by described second wireless entity will belong to described first wireless entity sends to second wireless entity, the downlink data that the serving BS of described second wireless entity will belong to described first wireless entity carries described Data Identification when sending to described second wireless entity, so that described second wireless entity sends to described first wireless entity by default data link with the downlink data of described first wireless entity;
Described default data link is wired connection or wireless connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101083481A CN101605359B (en) | 2009-06-17 | 2009-06-17 | Method for transmitting data in switching process, wireless entities and base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101083481A CN101605359B (en) | 2009-06-17 | 2009-06-17 | Method for transmitting data in switching process, wireless entities and base station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101605359A CN101605359A (en) | 2009-12-16 |
| CN101605359B true CN101605359B (en) | 2011-12-07 |
Family
ID=41470858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101083481A Active CN101605359B (en) | 2009-06-17 | 2009-06-17 | Method for transmitting data in switching process, wireless entities and base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101605359B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10039149B2 (en) * | 2014-03-19 | 2018-07-31 | Ntt Docomo, Inc. | User equipment and uplink data transmission method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5668804A (en) * | 1993-07-05 | 1997-09-16 | Nokia Telecommunications Oy | Base station with time-aligned mobile transmitting moments according to distance to base station |
| CN101047998A (en) * | 2006-06-27 | 2007-10-03 | 华为技术有限公司 | Data transmission method in switchover procedure between base station |
| WO2009019789A1 (en) * | 2007-08-09 | 2009-02-12 | Fujitsu Limited | Handover method in radio communication system, radio base station, and radio terminal |
-
2009
- 2009-06-17 CN CN2009101083481A patent/CN101605359B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5668804A (en) * | 1993-07-05 | 1997-09-16 | Nokia Telecommunications Oy | Base station with time-aligned mobile transmitting moments according to distance to base station |
| CN101047998A (en) * | 2006-06-27 | 2007-10-03 | 华为技术有限公司 | Data transmission method in switchover procedure between base station |
| WO2009019789A1 (en) * | 2007-08-09 | 2009-02-12 | Fujitsu Limited | Handover method in radio communication system, radio base station, and radio terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101605359A (en) | 2009-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2739082A2 (en) | Load sharing method, device, and system | |
| CN102598786B (en) | Switching method between base stations, base stations and communication system | |
| US11323923B2 (en) | Method and system for communication in wireless communication network | |
| EP2862398B1 (en) | A method and node for paging in a radio access network | |
| CA2330832A1 (en) | Multicell area paging for cellular telecommunications system | |
| CN106028471A (en) | Always-on bearer for small data transfers in LTE systems | |
| CN103888959B (en) | Method, system and equipment for small cell communication | |
| CN105165087A (en) | Long term evolution radio access network | |
| CN102883440A (en) | wireless broadband communication method, device and system | |
| CN101204103B (en) | Method and apparatus for reducing latency during wireless connectivity changes | |
| CN102196499A (en) | Method for realizing access control, central controller and access point (AP) device | |
| CN103167471A (en) | Method and device for transmitting data of client moving between different APs (access points) | |
| US7483436B2 (en) | System and method for establishing mobile station-to-mobile station packet data calls directly between base stations of a wireless network | |
| CN101374346A (en) | Method, system and equipment for implementing terminal communication | |
| CN102067667A (en) | Handover procedure between radio access networks | |
| CN105704760A (en) | Method, device and system for data packet transmission | |
| US20050089007A1 (en) | System and method for performing handoffs of mobile station-to-mobile station packet data calls in a wireless network | |
| CN107770825A (en) | A kind of path switching method and device based on user version information | |
| CN101605359B (en) | Method for transmitting data in switching process, wireless entities and base station | |
| CN114390609A (en) | Data transmission method, device and equipment | |
| JP5194915B2 (en) | Mobile communication system | |
| CN102573066A (en) | Method for transmitting RN information and paging UE and apparatus thereof | |
| CN103974331A (en) | Load balancing method, device and system for heterogeneous network | |
| CN103731920B (en) | Un subframe configuration method and device | |
| CN102714883A (en) | Network entity for mobile communications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |