CN101729396A - Data packet sending and receiving method and device as well as processing method and system - Google Patents
Data packet sending and receiving method and device as well as processing method and system Download PDFInfo
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- CN101729396A CN101729396A CN200810225643A CN200810225643A CN101729396A CN 101729396 A CN101729396 A CN 101729396A CN 200810225643 A CN200810225643 A CN 200810225643A CN 200810225643 A CN200810225643 A CN 200810225643A CN 101729396 A CN101729396 A CN 101729396A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/02—Data link layer protocols
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Abstract
The embodiment of the invention relates to data packet sending and receiving method and device as well as processing method and system. The sending method comprises the following steps of: sending a data packet to a PDCP layer by an RLC layer; and sending a reestablishment ending indication mark to the PDCP layer by the RLC layer. The receiving method comprises the following step of: after the PDCP layer receives a reestablishment beginning indication mark and before the PDCP layer receives the reestablishment ending indication mark sent by the RLC layer, carrying out corresponding processing on the received data packet sent by the RLC layer. An RRC layer in the embodiment only needs to send the reestablishment beginning indication mark once to the PDCP layer or the RLC layer, namely a reestablishment indication is triggered once in an RLC reestablishment process, thereby reducing the number of times for triggering the reestablishment indication of the RRC layer in the RLC reestablishment process and lightening the burden of the RRC layer.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of sending, receiving method and device and processing method and system of packet.
Background technology
Long Term Evolution (Long Term Evolution is called for short LTE) wave point comprises following protocol layer: physical layer, data link layer and Radio Resource control (Radio Resource Control is called for short RRC) layer.Data link layer is further divided into medium access control (Medium Access Control again, abbreviation MAC) layer, Radio Link control (Radio Link Control, be called for short RLC) layer and PDCP (Packet Data Convergence Protocol is called for short PDCP) layer.
In the normal data transmission procedure, the rlc layer of transmit leg receives PDCP protocol Data Unit (Protocol Data Unit is called for short PDU) afterwards from the PDCP layer, through then generating RLC SDU after segmentation, cascade and the filling.Rlc layer is numbered each RLC SDU, generates RLC sequence number (Serial Number is called for short SN), gives bottom according to RLC SN order with RLC SDU and sends.After packet transmits through bottom, owing to reasons such as re-transmissions, not necessarily arrive recipient's rlc layer in order, recipient's rlc layer can be kept at the RLC SDU that receives earlier in the buffer memory, after waiting for that late packet arrives, the RLC SN order of determining according to transmit leg delivers RLC SDU to the PDCP layer again.Recipient's PDCP layer is after rlc layer receives each packet RLC SDU, just with this packet PDCP PDU, and this packet before all packets (if such packet is arranged in the buffer memory) all deliver the upper strata, no matter whether the PDCP SN of these packets continuous.The PDCP layer also can write down the PDCP SN of this packet simultaneously, follow-uply will no longer receive the packet of PDCP SN less than this PDCP SN.
Rebuild immediately when RRC takes place terminal (User Equipment is called for short UE), rlc layer and MAC layer can carry out initialization again, so the data of preserving in the buffer memory of rlc layer also are cleared simultaneously.For reduce data re-transmission as far as possible, the rlc layer of UE can be assembled into RLC service data unit (Service Data Unit is called for short SDU) with existing data in the buffer memory as far as possible before emptying buffer memory, deliver the PDCP layer, carries out data rearrangement by the PDCP layer.The PDCP layer of UE receives RLC and rebuilds after each packet in the upright process, can carry out buffer memory to this packet, and it is continuous having only the PDCP SN that determines received packet, just received packet can be delivered the upper strata.Because situations such as above-mentioned switching and RRC reconstruction are upright all are to be initiated by the rrc layer of UE, all indicate the PDCP layer by rrc layer so RLC rebuilds upright beginning and finishes.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: when RLC rebuilds upright the beginning, the rrc layer of UE sends to the PDCP layer and rebuilds upright beginning sign, all belongs to RLC with the follow-up packet that receives of notice PDCP layer and rebuilds the upright packet of sending here.RLC rebuilds after upright the finishing, and the rrc layer of UE sends to the PDCP layer and rebuilds the upright sign that finishes, and does not belong to RLC with the follow-up packet that receives of notice PDCP layer and rebuilds the upright packet of sending here.Rrc layer sends to the PDCP of UE layer and rebuilds upright beginning sign and rebuild upright two signs of sign that finish, i.e. upright indication is rebuild in twice triggering of rrc layer, has increased the burden of rrc layer.
Summary of the invention
The embodiment of the invention provides a kind of sending, receiving method and device and processing method and system of packet, rebuilds the number of times of rebuilding upright indication that triggers in the upright process in order to the rrc layer that reduces UE at RLC, alleviates the burden of rrc layer.
The embodiment of the invention provides a kind of sending method of packet, comprising:
Radio Link control rlc layer sends packet to PDCP PDCP layer;
Described rlc layer sends to described PDCP layer and rebuilds the upright sign that finishes.
The embodiment of the invention provides a kind of method of reseptance of packet, comprising:
PDCP PDCP layer receive rebuild upright beginning sign after, and before receiving that reconstruction that Radio Link control rlc layer sends is upright and finishing sign, handle accordingly at the packet that the described rlc layer that receives sends.
The embodiment of the invention provides a kind of processing method of packet, comprising:
Radio Link control rlc layer sends packet to PDCP PDCP layer;
Described rlc layer sends to described PDCP layer and rebuilds the upright sign that finishes;
Described PDCP layer receive rebuild upright beginning sign after, and before receiving that described reconstruction is upright and finishing sign, handle accordingly at described packet.
The embodiment of the invention also provides a kind of dispensing device of packet, comprising:
Sending module is used for sending packet to PDCP PDCP layer; And,
Indicating module is used for sending the upright sign that finishes of reconstruction to described PDCP layer.
The embodiment of the invention also provides a kind of receiving system of packet, comprising:
Second receiver module is used to receive rebuild and founds the upright end of the reconstruction sign that begins sign, the transmission of Radio Link control rlc layer, and the packet of described rlc layer transmission; And,
Processing module, be used for after described second receiver module receives the upright beginning of reconstruction sign, and before described second receiver module receives the upright end of described reconstruction sign, handle accordingly at the packet that described second receiver module receives.
The embodiment of the invention provides a kind of treatment system of packet again, comprising:
The dispensing device of packet is used to send packet, and sends the upright sign that finishes of reconstruction;
The receiving system of packet, be used for after receiving the upright beginning of reconstruction sign, and the reconstruction that the dispensing device that receives described packet sends is upright finish sign before, handle accordingly at the packet that the dispensing device of described packet sends.
Rrc layer in the embodiment of the invention is rebuild only to need in the upright process to send at RLC and is once rebuild upright beginning sign, rebuilds the number of times of rebuilding upright indication that triggers in the upright process thereby reduced rrc layer at RLC, has alleviated the burden of rrc layer.
Below in conjunction with accompanying drawing specific embodiments of the invention are described in further detail.
Description of drawings
The schematic flow sheet of the sending method of the packet that Fig. 1 provides for the embodiment of the invention one;
The schematic flow sheet of the sending method of the packet that Fig. 2 provides for the embodiment of the invention two;
The schematic flow sheet of the method for reseptance of the packet that Fig. 3 provides for the embodiment of the invention three;
The schematic flow sheet of the processing method of the packet that Fig. 4 provides for the embodiment of the invention four;
The structural representation of the dispensing device of the packet that Fig. 5 provides for the embodiment of the invention five;
The structural representation of the dispensing device of the packet that Fig. 6 provides for the embodiment of the invention six;
The structural representation of the receiving system of the packet that Fig. 7 provides for the embodiment of the invention seven;
The structural representation of the treatment system of the packet that Fig. 8 provides for the embodiment of the invention eight.
Embodiment
The schematic flow sheet of the sending method of the packet that Fig. 1 provides for the embodiment of the invention one, as shown in Figure 1, present embodiment can may further comprise the steps:
Step 101, rlc layer send packet to the PDCP layer;
Step 102, rlc layer send to the PDCP layer and rebuild the upright sign that finishes.
The embodiment of the invention is by after the packet of rlc layer in PDCP layer transmission buffer memory, send to the PDCP layer again and rebuild the upright sign that finishes, make that rrc layer does not need to send to the PDCP layer to rebuild the upright sign that finishes again, rebuild the number of times of rebuilding upright indication that triggers in the upright process thereby reduced rrc layer at RLC, alleviated the burden of rrc layer.
The schematic flow sheet of the sending method of the packet that Fig. 2 provides for the embodiment of the invention two, as shown in Figure 2, present embodiment can may further comprise the steps:
Step 201, rlc layer send to the PDCP layer and rebuild upright beginning sign;
Step 202, rlc layer send packet to the PDCP layer;
Step 203, rlc layer send to the PDCP layer and rebuild the upright sign that finishes.
Particularly, the upright beginning of the reconstruction sign that rlc layer is sent to the PDCP layer in the present embodiment step 201 can be the upright beginning of the reconstruction sign that is sent to rlc layer by rrc layer.
In the present embodiment, after the rrc layer of UE determines that the RRC reconstruction is upright, can send to rlc layer and rebuild the upright sign that begins, rlc layer is transmitted the upright beginning of this reconstruction sign to the PDCP layer, rebuilds with indication PDCP layer RLC and stands beginning; Subsequently, rlc layer is packaged into packet RLC SDU with the packet of storing in the buffer memory as far as possible, delivers the PDCP layer.After the buffer memory of rlc layer empties, then begin to send the upright sign that finishes of reconstruction, rebuild to stand with indication PDCP layer RLC and finish to the PDCP layer.Accordingly, the PDCP layer can and be rebuild upright end sign received packet is done corresponding processing according to received reconstruction upright beginning sign: receiving between above-mentioned reconstruction upright beginning sign and the upright end of the above-mentioned reconstruction sign, the packet that the PDCP layer receives is " RLC rebuilds the upright bag of delivering "; After receiving the upright end of above-mentioned reconstruction sign, the packet that the PDCP layer receives is " bag that normal condition is delivered ".The PDCP layer will be done respective handling at " RLC rebuilds the upright bag of delivering " and " bag that normal condition is delivered ", the PDCP layer all is applicable to present embodiment and does not influence realization of the present invention the processing mode of above-mentioned two class packets in the prior art, so locate to repeat no more.
Rlc layer in the embodiment of the invention can be transmitted the upright beginning of the reconstruction sign that rrc layer sent to the PDCP layer, can also after the packet that sends to the PDCP layer in the buffer memory, send and rebuild the upright sign that finishes, make rrc layer only need send and once rebuild upright beginning sign to rlc layer, be that rrc layer is rebuild the once upright indication of reconstruction of triggering in the upright process at RLC, rebuild the number of times of rebuilding upright indication that triggers in the upright process thereby reduced rrc layer at RLC, alleviated the burden of rrc layer.
The schematic flow sheet of the method for reseptance of the packet that Fig. 3 provides for the embodiment of the invention three, as shown in Figure 3, present embodiment can may further comprise the steps:
Wherein, the upright beginning of this reconstruction sign can directly send to the PDCP layer by rrc layer, can also send to rlc layer by rrc layer after, be transmitted to the PDCP layer by rlc layer;
After the PDCP layer is received the upright beginning of this reconstruction sign, think that the follow-up packet of receiving all belongs to " RLC rebuilds the upright bag of delivering ".
The PDCP layer receives after RLC rebuilds packet in the upright process, can carry out buffer memory to this packet, determines that earlier the PDCP SN of received packet is continuous, in order received packet is delivered the upper strata again.
After the PDCP layer is received the upright end of this reconstruction sign, thinking that " RLC rebuild deliver bag " sent finishes, be that the follow-up packet of receiving will no longer belong to " RLC rebuilds the bag of delivering ", and belong to " bag that normal condition is delivered ", then the packet that after this comes processing subsequent to receive according to normal transfer of data begins sign until receiving that new reconstruction is stood.
In the present embodiment, because the data interaction between rlc layer and the PDCP layer belongs to interlayer communication, speed is very fast, make rlc layer after short reconstruction is upright, to send to the PDCP layer immediately and rebuild the upright sign that finishes, save the UE of rrc layer before the indication of PDCP layer and inserted Target cell or upright time of RRC reconstruction, shortened the time between twice indication, further, the time that the PDCP layer receives the discontinuous packet of PDCPSN shortens greatly, thereby has reduced PDCP layer possibility under attack.
Rrc layer in the present embodiment only needs to send the once upright beginning of reconstruction sign to the PDCP layer, promptly rebuild to trigger in the upright process and once rebuild upright indication at RLC, simplified the operation of rrc layer, rebuild the number of times of rebuilding upright indication that triggers in the upright process thereby reduced rrc layer at RLC, alleviated the burden of rrc layer.
The schematic flow sheet of the processing method of the packet that Fig. 4 provides for the embodiment of the invention four, as shown in Figure 4, present embodiment can may further comprise the steps:
In the present embodiment, rrc layer only needs to send the once upright beginning of reconstruction sign to PDCP layer or rlc layer, has simplified the operation of rrc layer, rebuilds the number of times of the upright indication of reconstruction that triggers in the upright process thereby reduced rrc layer at RLC, has alleviated the burden of rrc layer.
The structural representation of the dispensing device of the packet that Fig. 5 provides for the embodiment of the invention five, as shown in Figure 5, present embodiment can comprise sending module 51 and indicating module 52.Wherein, sending module 51 is after the PDCP layer sends packet, and indicating module sends to the PDCP layer and rebuilds the upright sign that finishes.
The dispensing device of the packet that present embodiment provided can be thought the rlc layer entity.Present embodiment can be simplified the operation of rrc layer in the upright process of RLC reconstruction, has alleviated the burden of rrc layer.
The structural representation of the dispensing device of the packet that Fig. 6 provides for the embodiment of the invention six, as shown in Figure 6, similar with a last embodiment, difference is, present embodiment can also comprise first receiver module 53, first receiver module 53 receives upright the beginning after the sign of reconstruction that rrc layer sends, and sending module 51 sends packet to the PDCP layer again, and indicating module 52 further can also be transmitted the 53 received reconstructions of first receiver module to the PDCP layer and found the beginning sign.
In the embodiment of the invention, rrc layer only need send to first receiver module of rlc layer and once rebuild upright beginning sign, further can transmit the upright beginning of this reconstruction sign to the PDCP layer by indicating module, be that rrc layer is rebuild the once upright indication of reconstruction of triggering in the upright process at RLC, rebuild the number of times of rebuilding upright indication that triggers in the upright process thereby reduced rrc layer at RLC, alleviated the burden of rrc layer.
The structural representation of the receiving system of the packet that Fig. 7 provides for the embodiment of the invention seven, as shown in Figure 7, present embodiment can comprise second receiver module 71 and processing module 72.Wherein, second receiver module 71 is used to receive the upright end of the reconstruction sign that beginning sign, rlc layer transmission are stood in reconstruction, and the packet of described rlc layer transmission.Processing module 72 second receiver module 71 receive rebuild upright beginning sign after, and second receiver module 71 receive rebuild upright finish sign before, handle accordingly at the packet that second receiver module 71 receives.
The receiving system of the packet that present embodiment provided can be thought the PDCP layer entity.The upright beginning of the reconstruction that second receiver module 71 is wherein received sign can be the receiving system that is directly sent to packet by rrc layer, can also send to rlc layer by rrc layer after, be transmitted to the receiving system of packet by rlc layer.
In the present embodiment, after the rrc layer of UE determines that the RRC reconstruction is upright, can rebuild the upright sign that begins with the upright beginning of indication PDCP layer RLC reconstruction to PDCP layer or rlc layer transmission.After second receiver module 71 of PDCP layer is received the upright beginning of this reconstruction sign, will carry out " RLC rebuilds the upright bag of delivering " relevant treatment to second receiver module, the 71 follow-up packets that receive.Subsequently, rlc layer is packaged into packet RLC PDU with the packet of storing in the own buffer memory as far as possible, delivers the PDCP layer.The PDCP layer receives RLC and rebuilds after each packet in the upright process, can carry out buffer memory to this packet, and it is continuous having only the PDCP SN that determines received packet, just can in order received packet be delivered the upper strata.Rlc layer empties buffer memory, and found the end sign to PDCP layer transmission reconstruction and stand end with indication PDCP layer RLC reconstruction, after second receiver module 71 of PDCP layer is received the upright end of this reconstruction sign, to carry out the relevant treatment of " bag that normal condition is delivered " to second receiver module, the 71 follow-up packets that receive, according to the packet that normal transfer of data comes processing subsequent to receive, all packets before the follow-up packet that receives and this packet are delivered the upper strata in the lump.Because the data interaction between rlc layer and the PDCP layer belongs to interlayer communication, speed is very fast, make rlc layer after the reconstruction of one period short period is upright, to send to the PDCP layer immediately and rebuild the upright sign that finishes, saved UE access Target cell or the RRC reconstruction upright time of rrc layer before the indication of PDCP layer in the prior art, shortened the time between twice indication, therefore the PDCP layer just may receive the discontinuous packet of PDCP SN in a short period of time, thereby has reduced PDCP layer possibility under attack.
In the embodiment of the invention, rrc layer only need send the once upright beginning of reconstruction sign to PDCP layer or rlc layer, be that rrc layer is rebuild the once upright indication of reconstruction of triggering in the upright process at RLC, rebuild the number of times of rebuilding upright indication that triggers in the upright process thereby reduced rrc layer at RLC, alleviated the burden of rrc layer.
The structural representation of the treatment system of the packet that Fig. 8 provides for the embodiment of the invention eight, as shown in Figure 8, present embodiment can comprise the dispensing device 81 of packet and the receiving system 82 of packet.The dispensing device 81 of packet sends packet to the receiving system 82 of packet, and sends the upright sign that finishes of reconstruction.The receiving system 82 of packet receive rebuild upright beginning sign after, and the reconstruction that the dispensing device 81 that receives packet sends is upright finish sign before, handle accordingly at the packet that the dispensing device 81 of packet sends.The upright beginning of reconstruction wherein sign can directly be sent to the receiving system 82 of packet by rrc layer, can also send to the dispensing device 81 of packet by rrc layer after, be transmitted to the receiving system 82 of packet by the dispensing device 81 of packet;
The device that the dispensing device 81 of the packet in the present embodiment can provide for the embodiment of the invention five, six, the device that the receiving system 82 of packet can provide for the embodiment of the invention seven.
Though the various embodiments described above heavily are established as example with RRC and describe, also be applicable to switch and wait other to need rlc layer to carry out initialized flow process again, for example UE situation about switching.Wherein, UE switches and rebuilds upright process with RRC and compare, and the data that the PDCP layer receives in the various embodiments described above are different, concrete: in the flow process that UE switches, the data that the PDCP layer receives are the data that Target cell sends; Rebuild in the upright flow process at RRC, the data that the PDCP layer receives are the data of eating dishes without rice or wine to send after radio bearer (RadioBear is called for short RB) recovers.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (11)
1. the sending method of a packet is characterized in that, comprising:
Radio Link control rlc layer sends packet to PDCP PDCP layer;
Described rlc layer sends to described PDCP layer and rebuilds the upright sign that finishes.
2. method according to claim 1 is characterized in that, described rlc layer also comprised before the PDCP layer sends packet:
Described rlc layer sends to described PDCP layer and rebuilds upright beginning sign.
3. method according to claim 2 is characterized in that, described rlc layer sends to rebuild to stand to described PDCP layer and begins also to comprise before the sign:
Described RLC receives the upright beginning of the described reconstruction sign that the radio resource control RRC layer sends.
4. the method for reseptance of a packet is characterized in that, comprising:
PDCP PDCP layer receive rebuild upright beginning sign after, and before receiving that reconstruction that Radio Link control rlc layer sends is upright and finishing sign, handle accordingly at the packet that the described rlc layer that receives sends.
5. method according to claim 4 is characterized in that, also comprises:
The upright beginning of described reconstruction sign sends to described PDCP layer by rrc layer, perhaps sends to described PDCP layer by rlc layer.
6. the processing method of a packet is characterized in that, comprising:
Radio Link control rlc layer sends packet to PDCP PDCP layer;
Described rlc layer sends to described PDCP layer and rebuilds the upright sign that finishes;
Described PDCP layer receive rebuild upright beginning sign after, and before receiving that described reconstruction is upright and finishing sign, handle accordingly at described packet.
7. the dispensing device of a packet is characterized in that, comprising:
Sending module is used for sending packet to PDCP PDCP layer; And,
Indicating module is used for sending the upright sign that finishes of reconstruction to described PDCP layer.
8. device according to claim 7 is characterized in that, described indicating module also is used for: send to described PDCP layer and rebuild upright beginning sign.
9. device according to claim 8 is characterized in that, described device also comprises: first receiver module is used to receive the upright beginning of the described reconstruction sign that rrc layer sends.
10. the receiving system of a packet is characterized in that, comprising:
Second receiver module is used to receive rebuild and founds the upright end of the reconstruction sign that begins sign, the transmission of Radio Link control rlc layer, and the packet of described rlc layer transmission; And,
Processing module, be used for after described second receiver module receives the upright beginning of reconstruction sign, and before described second receiver module receives the upright end of described reconstruction sign, handle accordingly at the packet that described second receiver module receives.
11. the treatment system of a packet is characterized in that, comprising:
The dispensing device of packet is used to send packet, and sends the upright sign that finishes of reconstruction;
The receiving system of packet, be used for after receiving the upright beginning of reconstruction sign, and the reconstruction that the dispensing device that receives described packet sends is upright finish sign before, handle accordingly at the packet that the dispensing device of described packet sends.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810225643A CN101729396A (en) | 2008-10-31 | 2008-10-31 | Data packet sending and receiving method and device as well as processing method and system |
| PCT/CN2009/074397 WO2010048850A1 (en) | 2008-10-31 | 2009-10-10 | Method and apparatus for data packets transmission and reception, and processing method and system |
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| CN200810225643A CN101729396A (en) | 2008-10-31 | 2008-10-31 | Data packet sending and receiving method and device as well as processing method and system |
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| CN101729396A true CN101729396A (en) | 2010-06-09 |
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| WO (1) | WO2010048850A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014166106A1 (en) * | 2013-04-12 | 2014-10-16 | Nokia Siemens Networks Oy | Pdcp operation for dual connection |
| WO2017198236A1 (en) * | 2016-05-18 | 2017-11-23 | 中兴通讯股份有限公司 | Data transmission method, device, and system |
| CN108243468A (en) * | 2016-12-23 | 2018-07-03 | 夏普株式会社 | User mobility method and apparatus |
| WO2018227994A1 (en) * | 2017-06-15 | 2018-12-20 | Oppo广东移动通信有限公司 | Method and device for transmitting data |
| WO2021109472A1 (en) * | 2020-05-19 | 2021-06-10 | Zte Corporation | Uplink packet duplication transmissions |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107347199B (en) * | 2016-05-06 | 2019-05-21 | 电信科学技术研究院 | It is a kind of switching and its control method, device |
| CN107360606B (en) * | 2016-05-10 | 2019-07-26 | 电信科学技术研究院 | A kind of processing method and processing device of distributed processing node switching |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100431390C (en) * | 2005-11-16 | 2008-11-05 | 大唐移动通信设备有限公司 | Lossless repositioning method |
| CN101132609B (en) * | 2006-08-22 | 2010-04-21 | 华为技术有限公司 | Method and system for repeating data during switching course |
| KR100938090B1 (en) * | 2006-10-19 | 2010-01-21 | 삼성전자주식회사 | Method and apparatus for performing handover in mobile telecommunication system |
| CN100581298C (en) * | 2007-02-15 | 2010-01-13 | 华为技术有限公司 | Method, system and device for data transmission in switch course |
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2008
- 2008-10-31 CN CN200810225643A patent/CN101729396A/en active Pending
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2009
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014166106A1 (en) * | 2013-04-12 | 2014-10-16 | Nokia Siemens Networks Oy | Pdcp operation for dual connection |
| US9730129B2 (en) | 2013-04-12 | 2017-08-08 | Nokia Solutions And Networks Oy | PDCP operation for dual connection |
| WO2017198236A1 (en) * | 2016-05-18 | 2017-11-23 | 中兴通讯股份有限公司 | Data transmission method, device, and system |
| CN108243468A (en) * | 2016-12-23 | 2018-07-03 | 夏普株式会社 | User mobility method and apparatus |
| CN108243468B (en) * | 2016-12-23 | 2021-09-21 | 夏普株式会社 | User mobility method and device |
| US11736987B2 (en) | 2016-12-23 | 2023-08-22 | Sharp Kabushiki Kaisha | User mobility method and device |
| WO2018227994A1 (en) * | 2017-06-15 | 2018-12-20 | Oppo广东移动通信有限公司 | Method and device for transmitting data |
| US11050862B2 (en) | 2017-06-15 | 2021-06-29 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and device for transmitting data |
| US11553067B2 (en) | 2017-06-15 | 2023-01-10 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and device for transmitting data |
| WO2021109472A1 (en) * | 2020-05-19 | 2021-06-10 | Zte Corporation | Uplink packet duplication transmissions |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010048850A1 (en) | 2010-05-06 |
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Application publication date: 20100609 |