CN101925126B - Method, system and device for sending data packet - Google Patents
Method, system and device for sending data packet Download PDFInfo
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- CN101925126B CN101925126B CN 200910086323 CN200910086323A CN101925126B CN 101925126 B CN101925126 B CN 101925126B CN 200910086323 CN200910086323 CN 200910086323 CN 200910086323 A CN200910086323 A CN 200910086323A CN 101925126 B CN101925126 B CN 101925126B
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000012790 confirmation Methods 0.000 claims description 10
- 238000012217 deletion Methods 0.000 claims description 10
- 230000037430 deletion Effects 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 6
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/02—Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off
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Abstract
The invention discloses a method for sending a data packet, which comprises the following steps that: a base station sends the data packet to a relay node and backs up and caches the data packet which is sent to the relay node; the base station receives identification information from the relay node and updates the cached data packet according to the identification information; the base station receives switching trigger information from the relay node and sends the cached data packet to switched UE through a target node according to the switching trigger information. In the method, the base station caches the data packet which is sent to the relay node and updates the data packet according to the identification information from the relay node; and the base station can directly send the cached data packet to the UE through the target node after receiving the switching trigger information from the relay node. Compared with the prior art, the method reduces the time for the UE to wait for the data packet in a switching process and improves the using experience of users.
Description
Technical field
The present invention relates to communication technical field, relate in particular to the mthods, systems and devices that a kind of packet sends.
Background technology
At 3GPP LTE-Advanced (3rd Generation Partnership Project Long Term Evolution, third generation partner program Long Term Evolution) in the system, adopt service quality and the Extended Cell of the method raising Cell Edge User of relaying cooperation transmission to cover.Comprise Donor-eNB (base station) in the 3GPP LTE-Advanced system, Relay-Node (via node) and UE (User Equipment, subscriber equipment), carry out data packet transmission by the Un interface between base station and the via node, carry out data packet transmission by the Uu interface between via node and the UE, the packet that the base station at first sends to needs UE sends to via node, after via node receives packet, again packet is sent to UE.
Provide in the process of business data packet in the base station for UE by via node, via node can be monitored UE at any time, if reach the switching condition of setting, for example via node detects the residential quarter that self-management has been shifted out in the position of UE, via node is initiated handoff procedure, UE is switched under the destination node of management objectives residential quarter, stop behind UE transmission packet at via node, difference according to mode of operation, via node needs not send to the packet of UE or the packet that successfully do not received by UE returns to the base station, the base station is behind the packet of receiving the via node passback, this part packet need be sent to destination node, finally by destination node this part packet is sent to UE, switch the data-bag lost that causes thereby avoid UE owing to carry out the residential quarter.
In realizing process of the present invention, the inventor finds to have following shortcoming in the prior art at least:
In the prior art, when UE switched, the base station need could send to this part packet the destination node that UE switches behind the packet that receives the via node passback, this packet passback process can increase the stand-by period of the packet of UE, reduces user's use impression.
Summary of the invention
The invention provides the mthods, systems and devices that a kind of packet sends, reduced the stand-by period of the packet of UE in the handoff procedure, improved user's use impression.
The invention provides the method that a kind of packet sends, comprising:
The base station sends to via node with packet, and the packet that sends to described via node is backed up buffer memory;
Described base station receives the identification information from described via node, and deletes/keep packet corresponding in the cached data packet according to described identification information;
Described base station receives the handover trigger information from described via node, and according to described handover trigger information cached data packet is sent to the UE that switches by destination node.
Wherein, described base station is deleted/is kept in the cached data packet corresponding packet according to described identification information and comprises:
Described base station is deleted in cached data packet and is carried the packet that criterion is known the identification information correspondence of position, keeps the packet of the identification information correspondence of carrying the invalidated identification position.
Wherein, described base station sends to packet after the described via node, also comprises:
Described via node sends to described UE with packet;
Described via node is added with criterion knowledge position to the packet corresponding identification information of success transmission, to the successful packet corresponding identification information interpolation invalidated identification position that sends;
Reaching when reporting trigger condition, described via node sends to described base station with the identification information that has added the sign position.
Wherein, described reaching when reporting trigger condition, described via node sends to described base station with the identification information that has added the sign position and comprises:
Described via node detects described UE and switches, and described via node sends to described base station with the identification information that has added the sign position; Or
The data volume accumulative total that described via node sends to UE surpasses preset threshold, and described via node sends to described base station with the identification information that has added the sign position; Or
The packet number accumulative total that described via node sends to UE surpasses preset threshold, and described via node sends to described base station with the identification information that has added the sign position; Or
Reach the time-count cycle of setting, described via node sends to described base station with the identification information that has added the sign position.
Wherein, described base station sends to packet after the described via node, also comprises:
Described via node sends to UE with packet;
Described via node receives the affirmation information from described UE, comprises the packet corresponding identification information that described UE successfully receives in the described confirmation;
The packet corresponding identification information that described via node successfully receives UE is added with criterion and knows the position, and the packet corresponding identification information that UE does not successfully receive is added the invalidated identification position;
Reaching when reporting trigger condition, described via node sends to described base station with the identification information that has added the sign position.
Wherein, described reaching when reporting trigger condition, described via node sends to described base station with the identification information that has added the sign position and comprises:
Described via node detects described UE and switches, and described via node sends to described base station with the identification information that has added the sign position; Or
The data volume accumulative total that UE successfully receives in the affirmation information that described via node receives surpasses preset threshold, and described via node sends to described base station with the identification information that has added the sign position; Or
The packet number accumulative total that UE successfully receives in the affirmation information that described via node receives surpasses preset threshold, and described via node sends to described base station with the identification information that has added the sign position; Or
Reach the time-count cycle of setting, described via node sends to described base station with the identification information that has added the sign position.
Wherein, also comprise:
If the buffer memory capacity of described base station reaches threshold capacity, the oldest packet of described base station deletion buffer memory; If the time that packet is stored in buffer memory reaches time threshold, this packet is deleted in described base station.
Wherein, described identification information is the sequence number of packet.
The invention provides a kind of system that realizes that packet sends, comprise base station, via node and UE, wherein,
Described base station comprises:
Transmitting element is used for packet is sent to via node;
Buffer unit is connected with described transmitting element, is used for the packet that described transmitting element sends is backed up buffer memory;
Receiving element is used for receiving the identification information from via node; Reception is from the handover trigger information of via node;
Updating block is connected respectively with described buffer unit with described receiving element, is used for deleting/keep the corresponding packet of cached data packet according to the identification information that described receiving element receives;
Processing unit is connected respectively with described buffer unit with described receiving element, is used for according to the handover trigger information that described receiving element receives described buffer unit cached data packet being sent to the UE that switches by destination node;
Described via node comprises:
Receiving element is used for receiving the packet from the base station;
Transmitting element is connected with described receiving element, is used for the packet that described receiving element receives is sent to UE;
Adding device is connected with described transmitting element, is used for that the packet corresponding identification information that described transmitting element successfully sends is added with criterion and knows the position, and the packet corresponding identification information that described transmitting element does not successfully send is added the invalidated identification position;
Report the unit, be connected with described adding device, be used for reaching when reporting trigger condition, the identification information that described adding device has been added the sign position sends to described base station;
Described UE comprises: be used for receiving the module from the packet of described base station or described via node.
The invention provides a kind of base station, comprising:
Transmitting element is used for packet is sent to via node;
Buffer unit is connected with described transmitting element, is used for the packet that described transmitting element sends is backed up buffer memory;
Receiving element is used for receiving the identification information from via node; Reception is from the handover trigger information of via node;
Updating block is connected respectively with described buffer unit with described receiving element, is used for deleting/keep the corresponding packet of cached data packet according to the identification information that described receiving element receives;
Processing unit is connected respectively with described buffer unit with described receiving element, is used for according to the handover trigger information that described receiving element receives described buffer unit cached data packet being sent to the UE that switches.
Wherein, described updating block, concrete being used for carries the packet that criterion is known the identification information correspondence of position in the cached data packet deletion, keeps the packet of the identification information correspondence of carrying the invalidated identification position.
Wherein, described updating block also is used for if the buffer memory capacity of described buffer unit reaches threshold capacity the oldest packet of deletion buffer memory; If the time that packet is stored reaches time threshold, delete this packet in described buffer unit.
The invention provides a kind of via node equipment, comprising:
Receiving element is used for receiving the packet from the base station; Wherein, in the described base station backup buffer memory described packet;
Transmitting element is connected with described receiving element, is used for the packet that described receiving element receives is sent to UE;
Adding device is connected with described transmitting element, is used for that the packet corresponding identification information that described transmitting element successfully sends is added with criterion and knows the position, and the packet corresponding identification information that described transmitting element does not successfully send is added the invalidated identification position;
Report the unit, be connected with described adding device, be used for reaching when reporting trigger condition, the identification information that described adding device has been added the sign position sends to described base station, so that packet corresponding in the cached data packet is deleted/kept in described base station according to described identification information.
Wherein, the described unit that reports specifically is used for,
If detecting described UE switches, the identification information that has added the sign position is sent to described base station; Or
Surpass preset threshold if send to the data volume accumulative total of UE, the identification information that has added the sign position is sent to described base station; Or
Surpass preset threshold if send to the packet number accumulative total of UE, the identification information that has added the sign position is sent to described base station; Or
If reach the time-count cycle of setting, the identification information that has added the sign position is sent to described base station.
The invention provides a kind of via node equipment, comprising:
Receiving element is used for receiving the packet from the base station; Reception comprises the packet corresponding identification information that described UE successfully receives from the affirmation information of UE in the described confirmation; Wherein, in the described base station backup buffer memory described packet;
Transmitting element is connected with described receiving element, is used for the packet that described receiving element receives is sent to described UE;
Adding device, be connected with described receiving element, be used for being added with criterion according to the packet corresponding identification information that the affirmation information that described receiving element receives successfully receives described UE and know the position, the packet corresponding identification information that described UE does not successfully receive is added the invalidated identification position;
Report the unit, be connected with described record cell, be used for reaching when reporting trigger condition, the identification information that described adding device has been added the sign position sends to described base station, so that packet corresponding in the cached data packet is deleted/kept in described base station according to described identification information.
Wherein, the described unit that reports specifically is used for,
If detecting described UE switches, the identification information that has added the sign position is sent to described base station; Or
If the data volume that UE successfully receives in the affirmation information that receives accumulative total surpasses preset threshold, the identification information that has added the sign position is sent to described base station; Or
If the packet number that UE successfully receives in the affirmation information that receives accumulative total surpasses preset threshold, the identification information that has added the sign position is sent to described base station; Or
If reach the time-count cycle of setting, the identification information that has added the sign position is sent to described base station.
Compared with prior art, the present invention has the following advantages:
Among the present invention, the base station is carried out buffer memory to the packet that sends to via node and according to the identification information from via node packet is upgraded, the base station is after the handover trigger information that receives from via node, can directly cached data packet be sent to UE by destination node, compared with prior art, reduce the stand-by period of the packet of UE in the handoff procedure, improved user's use impression.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the method flow diagram that a kind of packet sends in the embodiment of the invention one;
Fig. 2 is the method flow diagram that a kind of packet sends in the embodiment of the invention two;
Fig. 3 is the method flow diagram that a kind of packet sends in the embodiment of the invention three;
Fig. 4 is the method flow diagram that a kind of packet sends in the embodiment of the invention four;
Fig. 5 is the method flow diagram that a kind of packet sends in the embodiment of the invention five;
Fig. 6 is a kind of system construction drawing of realizing that packet sends in the embodiment of the invention six;
Fig. 7 is a kind of architecture of base station figure in the embodiment of the invention seven;
Fig. 8 is a kind of via node equipment structure chart in the embodiment of the invention eight;
Fig. 9 is a kind of via node equipment structure chart in the embodiment of the invention nine.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Core thinking provided by the invention is: the base station is carried out buffer memory to the packet that sends to via node and according to the identification information from via node packet is upgraded, the base station is after the handover trigger information that receives from via node, can directly cached data packet be sent to UE by destination node, compared with prior art, reduce the stand-by period of the packet of UE in the handoff procedure, improved user's use impression.
The method that the embodiment of the invention one provides a kind of packet to send is applied in the system that comprises base station, via node and UE, and detailed process may further comprise the steps as shown in Figure 1:
After step 101, can also comprise: via node sends to UE with packet, packet corresponding identification information to success transmission is added with criterion knowledge position, packet corresponding identification information to not success transmission is added the invalidated identification position, reaching when reporting trigger condition, the identification information that has added the sign position is being sent to described base station.Concrete, if via node detects UE and switches, via node can send to the base station with the identification information that has added the sign position; Surpass preset threshold if via node sends to the data volume accumulative total of UE, via node can send to the base station with the identification information that has added the sign position; Surpass preset threshold if via node sends to the packet number accumulative total of UE, via node can send to the base station with the identification information that has added the sign position; If reach the time-count cycle of setting, via node can send to the base station with the identification information that has added the sign position.
After step 101, can also comprise: via node sends to UE with packet, reception is from the affirmation information of described UE, comprise the packet corresponding identification information that UE successfully receives in the confirmation, the packet corresponding identification information that UE is successfully received is added with criterion knowledge position, the packet corresponding identification information that UE is not successfully received is added the invalidated identification position, reaching when reporting trigger condition, the identification information that has added the sign position is sent to the base station.Concrete, if via node detects UE and switches, via node can send to the base station with the identification information that has added the sign position; If the data volume that UE successfully receives accumulative total surpasses preset threshold, via node can send to the base station with the identification information that has added the sign position; If the packet number that UE successfully receives accumulative total surpasses preset threshold, via node can send to the base station with the identification information that has added the sign position; If reach the time-count cycle of setting, via node can send to the base station with the identification information that has added the sign position.
Further, the identification information in the present embodiment can be the SN (Serial Number, sequence number) of packet.
In the present embodiment, the base station is carried out buffer memory to the packet that sends to via node and according to the identification information from via node packet is upgraded, the base station is after the handover trigger information that receives from via node, can directly cached data packet be sent to UE by destination node, compared with prior art, reduce the stand-by period of the packet of UE in the handoff procedure, improved user's use impression.
The basis of the method that provides at embodiment one has proposed the embodiment of the invention two, among the embodiment two, via node is added with criterion knowledge position to the packet corresponding identification information of success transmission, packet corresponding identification information to not success transmission is added the invalidated identification position, when via node detects UE and switches, the identification information that has added the sign position is sent to the base station, the base station is upgraded cached data packet according to this information, detailed process may further comprise the steps as shown in Figure 2:
Concrete, the base station need be deleted in cached data packet and be carried the packet that criterion is known the identification information correspondence of position, keeps the packet of the identification information correspondence of carrying the invalidated identification position.In addition, if the buffer memory capacity of base station reaches threshold capacity, the oldest packet of buffer memory can be deleted in the base station; If the time that packet is stored in buffer memory reaches time threshold, this packet can be deleted in the base station.
In the present embodiment, the base station is carried out buffer memory to the packet that sends to via node and according to the identification information from via node packet is upgraded, the base station is after the handover trigger information that receives from via node, can directly cached data packet be sent to UE by destination node, compared with prior art, reduce the stand-by period of the packet of UE in the handoff procedure, improved user's use impression.
The basis of the method that provides at embodiment one has proposed the embodiment of the invention three, among the embodiment three, via node is added with criterion knowledge position to the packet corresponding identification information of success transmission, packet corresponding identification information to not success transmission is added the invalidated identification position, reaching when reporting trigger condition, the identification information that has added the sign position is being sent to the base station, the base station is upgraded cached data packet according to this information, detailed process may further comprise the steps as shown in Figure 3:
Step 303 is reaching when reporting trigger condition, and via node sends to the base station with the identification information that has added the sign position.The base station can report trigger condition that the identification information that has added the sign position is sent to the base station according to following 3 kinds:
1. via node preestablishes a data volume threshold value, and when the data volume accumulative total that sends to UE when the relaying node surpassed the data volume threshold value of setting, via node sent to the base station with the identification information that has added the sign position.Concrete, via node can add up the data volume that sends to all UE under it, also can add up particular UE.
2. via node sets in advance a packet number threshold value, and when the packet number accumulative total that sends to UE when the relaying node surpassed the packet number threshold value of setting, via node sent to the base station with the identification information that has added the sign position.Concrete, via node can add up the packet number that sends to all UE under it, also can add up particular UE.
3. via node sets in advance the one-period timer, and when cycle timer timing during to the time-count cycle set, via node sends to the base station with the identification information that has added the sign position.
Concrete, the base station need be deleted in cached data packet and be carried the packet that criterion is known the identification information correspondence of position, keeps the packet of the identification information correspondence of carrying the invalidated identification position.In addition, if the buffer memory capacity of base station reaches threshold capacity, the oldest packet of buffer memory can be deleted in the base station; If the time that packet is stored in buffer memory reaches time threshold, this packet can be deleted in the base station.
In the present embodiment, the base station is carried out buffer memory to the packet that sends to via node and according to the identification information from via node packet is upgraded, the base station is after the handover trigger information that receives from via node, can directly cached data packet be sent to UE by destination node, compared with prior art, reduce the stand-by period of the packet of UE in the handoff procedure, improved user's use impression.
The basis of the method that provides at embodiment one has proposed the embodiment of the invention four, among the embodiment four, the packet corresponding identification information that via node successfully receives UE is added with criterion and knows the position, the packet corresponding identification information that UE does not successfully receive is added the invalidated identification position, when via node detects UE and switches, the identification information that has added the sign position is sent to the base station, the base station is upgraded cached data packet according to this information, detailed process may further comprise the steps as shown in Figure 4:
Step 401, the base station sends to via node with packet, and the packet that sends to via node is backed up buffer memory.
Step 402, via node will send to UE from the packet of base station.
Step 403, UE sends confirmation to via node, comprises the packet corresponding identification information that UE successfully receives in the confirmation.
Step 404, the packet corresponding identification information that via node successfully receives UE are added with criterion and know the position, and the packet corresponding identification information that UE does not successfully receive is added the invalidated identification position.
Step 405, via node detects UE and switches, and the identification information that has added the sign position is sent to the base station.
Step 406, the base station receives the identification information from via node, and according to identification information cached data packet is upgraded.
Concrete, the base station need be deleted in cached data packet and be carried the packet that criterion is known the identification information correspondence of position, keeps the packet of the identification information correspondence of carrying the invalidated identification position.In addition, if the buffer memory capacity of base station reaches threshold capacity, the oldest packet of buffer memory can be deleted in the base station; If the time that packet is stored in buffer memory reaches time threshold, this packet can be deleted in the base station.
Step 407, the base station receives the handover trigger information from via node, and according to handover trigger information cached data packet is sent to the UE that switches by destination node.
In the present embodiment, the base station is carried out buffer memory to the packet that sends to via node and according to the identification information from via node packet is upgraded, the base station is after the handover trigger information that receives from via node, can directly cached data packet be sent to UE by destination node, compared with prior art, reduce the stand-by period of the packet of UE in the handoff procedure, improved user's use impression.
The basis of the method that provides at embodiment one has proposed the embodiment of the invention five, among the embodiment five, the packet corresponding identification information that via node successfully receives UE is added with criterion and knows the position, the packet corresponding identification information that UE does not successfully receive is added the invalidated identification position, reaching when reporting trigger condition, the identification information that has added the sign position is sent to the base station, the base station is upgraded cached data packet according to this information, detailed process may further comprise the steps as shown in Figure 5:
Step 505 is reaching when reporting trigger condition, and via node sends to the base station with the identification information that has added the sign position.The base station can report trigger condition that the identification information that has added the sign position is sent to the base station according to following 3 kinds:
1. via node preestablishes a data volume threshold value, and when the data volume accumulative total that successfully receives as UE in the affirmation information that receives surpassed the data volume threshold value of setting, via node sent to the base station with the identification information that has added the sign position.Concrete, via node can add up the data volume that all UE under it successfully receive, and also can the data volume that particular UE successfully receives be added up.
2. via node sets in advance a packet number threshold value, and when the packet number accumulative total that successfully receives as UE in the affirmation information that receives surpassed the packet number threshold value of setting, via node sent to the base station with the identification information that has added the sign position.Concrete, via node can add up the packet number that all UE under it successfully receive, and also can the packet number that particular UE successfully receives be added up.
3. via node sets in advance the one-period timer, and when cycle timer timing during to the time-count cycle set, via node sends to the base station with the identification information that has added the sign position.
Concrete, the base station need be deleted in cached data packet and be carried the packet that criterion is known the identification information correspondence of position, keeps the packet of the identification information correspondence of carrying the invalidated identification position.In addition, if the buffer memory capacity of base station reaches threshold capacity, the oldest packet of buffer memory can be deleted in the base station; If the time that packet is stored in buffer memory reaches time threshold, this packet can be deleted in the base station.
In the present embodiment, the base station is carried out buffer memory to the packet that sends to via node and according to the identification information from via node packet is upgraded, the base station is after the handover trigger information that receives from via node, can directly cached data packet be sent to UE by destination node, compared with prior art, reduce the stand-by period of the packet of UE in the handoff procedure, improved user's use impression.
The embodiment of the invention six provides a kind of system that realizes that packet sends, and as shown in Figure 6, comprises base station 601, via node 602 and UE 603, wherein:
Via node 602 is used for receiving the packet from base station 601, and packet is sent to UE603; The packet corresponding identification information that the packet that success is sent or UE 603 successfully receive is added with criterion and knows the position, the packet corresponding identification information interpolation invalidated identification position that the packet that success is sent or UE 603 successfully do not receive; Reaching when reporting trigger condition, the identification information that has added the sign position is being sent to UE 603.
In the present embodiment, the base station is carried out buffer memory to the packet that sends to via node and according to the identification information from via node packet is upgraded, the base station is after the handover trigger information that receives from via node, can directly cached data packet be sent to UE by destination node, compared with prior art, reduce the stand-by period of the packet of UE in the handoff procedure, improved user's use impression.
The embodiment of the invention seven provides a kind of base station, as shown in Figure 7, comprises transmitting element 701, buffer unit 702, receiving element 703, updating block 704, processing unit 705, wherein:
Transmitting element 701 is used for packet is sent to via node.
Receiving element 703 is used for receiving the identification information from via node; Reception is from the handover trigger information of via node.
Updating block 704 is connected respectively with buffer unit 702 with receiving element 703, is used for according to the identification information that receiving element 703 receives buffer unit 702 cached data packet being upgraded.Concrete, updating block 704 is used for carrying the packet that criterion is known the identification information correspondence of position in the cached data packet deletion, keeps the packet of the identification information correspondence of carrying the invalidated identification position.Further, updating block 704 also is used for if the buffer memory capacity of buffer unit 702 reaches threshold capacity the oldest packet of deletion buffer memory; If the time that packet is stored reaches time threshold, delete this packet in buffer unit 702.
In the present embodiment, the base station is carried out buffer memory to the packet that sends to via node and according to the identification information from via node packet is upgraded, the base station is after the handover trigger information that receives from via node, can directly cached data packet be sent to UE by destination node, compared with prior art, reduce the stand-by period of the packet of UE in the handoff procedure, improved user's use impression.
The embodiment of the invention eight provides a kind of via node equipment, and comprise receiving element 801, transmitting element 802, adding device 803, report unit 804, wherein:
Receiving element 801 is used for receiving the packet from the base station.
Transmitting element 802 is connected with receiving element 801, is used for the packet that receiving element 801 receives is sent to UE.
Adding device 803 is connected with transmitting element 802, is added with criterion for the packet corresponding identification information that transmitting element 802 success is sent and knows the position, and the not successful packet corresponding identification information that sends of transmitting element 802 is added the invalidated identification position.
In the present embodiment, the base station is carried out buffer memory to the packet that sends to via node and according to the identification information from via node packet is upgraded, the base station is after the handover trigger information that receives from via node, can directly cached data packet be sent to UE by destination node, compared with prior art, reduce the stand-by period of the packet of UE in the handoff procedure, improved user's use impression.
The embodiment of the invention nine provides a kind of via node equipment, and as shown in Figure 9, comprise receiving element 901, transmitting element 902, adding device 903, report unit 904, wherein:
Receiving element 901 is used for receiving the packet from the base station; Reception comprises the packet corresponding identification information that UE successfully receives from the affirmation information of UE in the confirmation.
Transmitting element 902 is connected with receiving element 901, is used for the packet that receiving element 901 receives is sent to UE.
Adding device 903, be connected with receiving element 901, be used for being added with criterion according to the packet corresponding identification information that the affirmation information that receiving element 901 receives successfully receives UE and know the position, the packet corresponding identification information that UE does not successfully receive is added the invalidated identification position.
In the present embodiment, buffer memory and renewal are carried out to the packet that sends to via node in the base station, when UE switches, the base station is after the handover trigger information that receives from via node, can directly cached data packet be sent to UE by destination node, compared with prior art, reduce the stand-by period of the packet of UE in the handoff procedure, improved user's use impression.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number does not represent the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (14)
1. the method that packet sends is characterized in that, comprising:
The base station sends to via node with packet, and the packet that sends to described via node is backed up buffer memory;
Described base station receives the identification information from described via node, and according to described identification information cached data packet is upgraded; Wherein, described base station is upgraded cached data packet according to described identification information and comprised: described base station is deleted in cached data packet and is carried the packet that criterion is known the identification information correspondence of position, keeps the packet of the identification information correspondence of carrying the invalidated identification position;
Described base station receives the handover trigger information from described via node, and according to described handover trigger information cached data packet is sent to the UE that switches by destination node.
2. the method for claim 1 is characterized in that, described base station sends to packet after the described via node, also comprises:
Described via node sends to described UE with packet;
Described via node is added with criterion knowledge position to the packet corresponding identification information of success transmission, to the successful packet corresponding identification information interpolation invalidated identification position that sends;
Reaching when reporting trigger condition, described via node sends to described base station with the identification information that has added the sign position.
3. method as claimed in claim 2 is characterized in that, described reaching when reporting trigger condition, and described via node sends to described base station with the identification information that has added the sign position and comprises:
Described via node detects described UE and switches, and described via node sends to described base station with the identification information that has added the sign position; Or
The data volume accumulative total that described via node sends to UE surpasses preset threshold, and described via node sends to described base station with the identification information that has added the sign position; Or
The packet number accumulative total that described via node sends to UE surpasses preset threshold, and described via node sends to described base station with the identification information that has added the sign position; Or
Reach the time-count cycle of setting, described via node sends to described base station with the identification information that has added the sign position.
4. the method for claim 1 is characterized in that, described base station sends to packet after the described via node, also comprises:
Described via node sends to UE with packet;
Described via node receives the affirmation information from described UE, comprises the packet corresponding identification information that described UE successfully receives in the described confirmation;
The packet corresponding identification information that described via node successfully receives UE is added with criterion and knows the position, and the packet corresponding identification information that UE does not successfully receive is added the invalidated identification position;
Reaching when reporting trigger condition, described via node sends to described base station with the identification information that has added the sign position.
5. method as claimed in claim 4 is characterized in that, described reaching when reporting trigger condition, and described via node sends to described base station with the identification information that has added the sign position and comprises:
Described via node detects described UE and switches, and described via node sends to described base station with the identification information that has added the sign position; Or
The data volume accumulative total that UE successfully receives in the affirmation information that described via node receives surpasses preset threshold, and described via node sends to described base station with the identification information that has added the sign position; Or
The packet number accumulative total that UE successfully receives in the affirmation information that described via node receives surpasses preset threshold, and described via node sends to described base station with the identification information that has added the sign position; Or
Reach the time-count cycle of setting, described via node sends to described base station with the identification information that has added the sign position.
6. the method for claim 1 is characterized in that, also comprises:
If the buffer memory capacity of described base station reaches threshold capacity, the oldest packet of described base station deletion buffer memory; If the time that packet is stored in buffer memory reaches time threshold, this packet is deleted in described base station.
7. as each described method in the claim 1 to 6, it is characterized in that described identification information is the sequence number of packet.
8. a system that realizes that packet sends is characterized in that, comprises base station, via node and UE, wherein,
Described base station comprises:
Transmitting element is used for packet is sent to via node;
Buffer unit is connected with described transmitting element, is used for the packet that described transmitting element sends is backed up buffer memory;
Receiving element is used for receiving the identification information from via node; Reception is from the handover trigger information of via node;
Updating block is connected respectively with described buffer unit with described receiving element, is used for according to the identification information that described receiving element receives described buffer unit cached data packet being upgraded; Wherein, described updating block, concrete being used for carries the packet that criterion is known the identification information correspondence of position in the cached data packet deletion, keeps the packet of the identification information correspondence of carrying the invalidated identification position;
Processing unit is connected respectively with described buffer unit with described receiving element, is used for according to the handover trigger information that described receiving element receives described buffer unit cached data packet being sent to the UE that switches by destination node;
Described via node comprises:
Receiving element is used for receiving the packet from the base station;
Transmitting element is connected with described receiving element, is used for the packet that described receiving element receives is sent to UE;
Adding device is connected with described transmitting element, is used for that the packet corresponding identification information that described transmitting element successfully sends is added with criterion and knows the position, and the packet corresponding identification information that described transmitting element does not successfully send is added the invalidated identification position;
Report the unit, be connected with described adding device, be used for reaching when reporting trigger condition, the identification information that described adding device has been added the sign position sends to described base station;
Described UE comprises: be used for receiving the module from the packet of described base station or described via node.
9. a base station is characterized in that, comprising:
Transmitting element is used for packet is sent to via node;
Buffer unit is connected with described transmitting element, is used for the packet that described transmitting element sends is backed up buffer memory;
Receiving element is used for receiving the identification information from via node; Reception is from the handover trigger information of via node;
Updating block is connected respectively with described buffer unit with described receiving element, is used for according to the identification information that described receiving element receives described buffer unit cached data packet being upgraded; Wherein, described updating block, concrete being used for carries the packet that criterion is known the identification information correspondence of position in the cached data packet deletion, keeps the packet of the identification information correspondence of carrying the invalidated identification position;
Processing unit is connected respectively with described buffer unit with described receiving element, is used for according to the handover trigger information that described receiving element receives described buffer unit cached data packet being sent to the UE that switches by destination node.
10. base station as claimed in claim 9,
Described updating block also is used for if the buffer memory capacity of described buffer unit reaches threshold capacity the oldest packet of deletion buffer memory; If the time that packet is stored reaches time threshold, delete this packet in described buffer unit.
11. a via node equipment is characterized in that, comprising:
Receiving element is used for receiving the packet from the base station; Wherein, in the described base station backup buffer memory described packet;
Transmitting element is connected with described receiving element, is used for the packet that described receiving element receives is sent to UE;
Adding device is connected with described transmitting element, is used for that the packet corresponding identification information that described transmitting element successfully sends is added with criterion and knows the position, and the packet corresponding identification information that described transmitting element does not successfully send is added the invalidated identification position;
Report the unit, be connected with described adding device, be used for reaching when reporting trigger condition, the identification information that described adding device has been added the sign position sends to described base station, carry the packet that criterion is known the identification information correspondence of position so that delete in cached data packet according to described identification information described base station, keep the packet of the identification information correspondence of carrying the invalidated identification position.
12. via node equipment as claimed in claim 11 is characterized in that, the described unit that reports specifically is used for,
If detecting described UE switches, the identification information that has added the sign position is sent to described base station; Or
Surpass preset threshold if send to the data volume accumulative total of UE, the identification information that has added the sign position is sent to described base station; Or
Surpass preset threshold if send to the packet number accumulative total of UE, the identification information that has added the sign position is sent to described base station; Or
If reach the time-count cycle of setting, the identification information that has added the sign position is sent to described base station.
13. a via node equipment is characterized in that, comprising:
Receiving element is used for receiving the packet from the base station; Reception comprises the packet corresponding identification information that described UE successfully receives from the affirmation information of UE in the described confirmation; Wherein, in the described base station backup buffer memory described packet;
Transmitting element is connected with described receiving element, is used for the packet that described receiving element receives is sent to described UE;
Adding device, be connected with described receiving element, be used for being added with criterion according to the packet corresponding identification information that the affirmation information that described receiving element receives successfully receives described UE and know the position, the packet corresponding identification information that described UE does not successfully receive is added the invalidated identification position;
Report the unit, be connected with described record cell, be used for reaching when reporting trigger condition, the identification information that described adding device has been added the sign position sends to described base station, carry the packet that criterion is known the identification information correspondence of position so that delete in cached data packet according to described identification information described base station, keep the packet of the identification information correspondence of carrying the invalidated identification position.
14. via node equipment as claimed in claim 13 is characterized in that, the described unit that reports specifically is used for,
If detecting described UE switches, the identification information that has added the sign position is sent to described base station; Or
If the data volume that UE successfully receives in the affirmation information that receives accumulative total surpasses preset threshold, the identification information that has added the sign position is sent to described base station; Or
If the packet number that UE successfully receives in the affirmation information that receives accumulative total surpasses preset threshold, the identification information that has added the sign position is sent to described base station; Or
If reach the time-count cycle of setting, the identification information that has added the sign position is sent to described base station.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200910086323 CN101925126B (en) | 2009-06-10 | 2009-06-10 | Method, system and device for sending data packet |
| PCT/CN2010/073713 WO2010142238A1 (en) | 2009-06-10 | 2010-06-09 | Method, system and device for sending data packets |
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| CN 200910086323 CN101925126B (en) | 2009-06-10 | 2009-06-10 | Method, system and device for sending data packet |
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| CN101925126B true CN101925126B (en) | 2013-08-07 |
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| CN110831033B (en) * | 2018-08-13 | 2021-08-20 | 华为技术有限公司 | Service quality monitoring method, equipment and system |
| WO2020034922A1 (en) * | 2018-08-13 | 2020-02-20 | 华为技术有限公司 | Quality-of-service monitoring method, device and system |
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| CN1905728A (en) * | 2005-07-29 | 2007-01-31 | 西门子（中国）有限公司 | Method for network reconfiguration in multihop wireless mobile communication network |
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| WO2009001196A2 (en) * | 2007-06-22 | 2008-12-31 | Nokia Corporation | Status report messages for multi-layer arq protocol |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101102174A (en) * | 2006-07-04 | 2008-01-09 | 株式会社Ntt都科摩 | Mixing automatic request resending method and its applicable relay device and communication system |
| CN101146327A (en) * | 2006-09-12 | 2008-03-19 | 华为技术有限公司 | Switching method in radio relay system and radio relay system realizing this switching |
| CN101267240A (en) * | 2007-03-15 | 2008-09-17 | 华为技术有限公司 | Multi-hop wireless relay communication system and download data transmission method and device |
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| CN101925126A (en) | 2010-12-22 |
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