WO2008014721A1 - Procédé de transmission, dispositif de transmission et dispositif de réception - Google Patents

Procédé de transmission, dispositif de transmission et dispositif de réception Download PDF

Info

Publication number
WO2008014721A1
WO2008014721A1 PCT/CN2007/070374 CN2007070374W WO2008014721A1 WO 2008014721 A1 WO2008014721 A1 WO 2008014721A1 CN 2007070374 W CN2007070374 W CN 2007070374W WO 2008014721 A1 WO2008014721 A1 WO 2008014721A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission unit
data transmission
handover
control layer
radio link
Prior art date
Application number
PCT/CN2007/070374
Other languages
English (en)
Chinese (zh)
Inventor
Xiaoxiao Zheng
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008014721A1 publication Critical patent/WO2008014721A1/fr

Links

Classifications

    • 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

Definitions

  • the present invention relates to the field of network communication technologies, and in particular, to a handover method, a sender device, and a receiver device.
  • the AM service in Systems, Universal Mobile Telecommunications System is similar, and requires ARQ (automatic repeat request) to perform error rectification processing on the entity. Unlike UMTS, it is: AM data or UM (Unacknowledged)
  • step 1 the UE (user equipment) sends a measurement report to the source eNB.
  • the UE may trigger the measurement report according to the protocol, and the UE may also trigger the measurement report according to the message sent by the system.
  • Step 2 The source eNB performs handover decision according to the measurement report reported by the UE and the RRM (Radio Resource Management) information. In order for the target eNB to prepare for handover, the source eNB will have relevant information such as Context.
  • RRM Radio Resource Management
  • Data (context data) or the like is transmitted to the target eNB through a handover request message.
  • Step 3 After receiving the handover request message, the eNB performs the handover preparation of layer 1 and layer 2, and feeds back the handover response message to the source eNB, where the handover response message carries the Context.
  • Confirm (context confirmation) information such as the new C-RNTI (Cell Radio Network Temporary
  • Step 4 The UE receives the HANDOVER sent by the source eNB, including the new C-RNTI, the possible handover start time, and the target eNB SIB.
  • the source eNB will use RLC (Radio Link) Control, Wireless Link Control)
  • the RLC will confirm this message to ensure its reliability.
  • the source eNB starts to the target e after receiving the HANDOVER confirmation message sent by the UE.
  • the handover in the COMMAND message begins to occur, and the UE performs a synchronization process with the target eNB to start its uplink synchronization.
  • Step 6 Network for uplink resource allocation and timing
  • the UE sends a HANDOVER to the target eNB.
  • the CONFIRM message, the UE's handover process ends.
  • step 6 the UE will use the RLC AM to transmit HANDOVER
  • the message needs confirmation from the network side to ensure the reliability of the message.
  • Step 7a The target eNB notifies the source eNB that the handover is successful, and the source eNB deletes the data that has been forwarded in the cache.
  • the source eNB will forward the data to the target eNB.
  • Step 7b in order for the UPE to forward the data packet directly to the target eNB, the MME (Mobility Control Entity)
  • the source eNB After the handover, the source eNB starts forwarding all downlink RLC SDUs to the target eNB from the SDU (Service Data Unit) that the first UE does not correctly receive.
  • SDU Service Data Unit
  • the target eNB will retransmit all downlink RLC SDUs forwarded from the source eNB.
  • the source eNB does not forward the downlink RLC control context, such as the SN, to the target eNB, and the target eNB will re-number the forwarded data, that is, the switched RLC.
  • the entity was reset.
  • the reordering of the handover downlink SDU may be performed on the target eNB side or on the UE side based on the PDCP (Packet Data Convergence Protocol).
  • PDCP Packet Data Convergence Protocol
  • the source eNB forwards all correctly received uplink RLC SDUs to the access GW.
  • UE retransmits all source eNBs
  • the source eNB does not need to forward the uplink to the target eNB.
  • RLC SDUs also do not need to forward uplink RLC to the target eNB
  • All state variables are reset to the initial value, and the receiver reassembles the data in the reordering buffer into MAC-d PDUs and sends them to the upper layer.
  • the RLC layer of the RNC in the UMTS system will not be reset after the handover. However, in the LTE system, since both the RLC and the MAC are in the eNB, the RLC layer in the LTE system will be reset, and the RLC reset process will occur. Delete incomplete data transfer units.
  • the sender is for the HARQ entity
  • the embodiments of the present invention provide a handover method, a sender device, and a receiver device to avoid data loss in a non-acknowledged mode service during handover.
  • the method includes the following steps:
  • the transmitting end before the handover transmits the data transmission unit whose radio link control layer is sent to the medium access control layer before the handover and is not correctly received by the receiving end, and tries to transmit to the receiving end through the switched transmitting end.
  • the embodiment of the present invention further provides a transmitting end device
  • the sender device includes:
  • a buffering module configured to: when the transmitting device is a transmitting device before the handover in the handover process, during the handover, the radio link control layer of the transmitting end is sent to the medium access control layer, and a data transmission unit that is not correctly received by the receiving end;
  • the sending module is configured to: after the transmitting device performs the switching for the sending device before the switching, send the data transmission unit buffered in the cache module to the receiving end by using the switched transmitting end.
  • Another embodiment of the present invention provides another
  • the sender device in the mobile access network system, the sender device includes:
  • the first sending module is configured to: when the sending end device is the transmitting end device before the switching in the handover process, perform the handover, the data of the media access control layer at the transmitting end as the transmitting end before the switching
  • the transmission unit continues the transmission process, and sends the data transmission unit in the media access control layer to the receiving end through the switched sender device;
  • the second sending module is configured to perform, after the transmitting end, performs switching on the transmitting device before the switching, and sends the data transmission unit in the radio link control layer of the transmitting end to the receiving end by using the switched transmitting device
  • An embodiment of the present invention further provides a receiving end device, where the receiving end device includes:
  • a media access control layer reordering unit configured to reorder the data transmission unit in the media access control layer
  • the first detecting module is configured to detect the reordered data transmission unit, send the complete radio link control layer protocol data transmission unit to the radio link control layer, and delete the incomplete radio link control layer protocol.
  • Data generating unit [36]
  • the second detecting module is configured to send the detected complete radio link control layer service data transmission unit to the upper layer, and delete the incomplete radio link control layer service data transmission unit.
  • the embodiment of the present invention further provides another receiving end device, where the receiving end device includes:
  • a radio link control layer reordering unit configured to perform reordering processing on a data transmission unit in a radio link control layer
  • the second detecting module is configured to send the detected complete radio link control layer service data transmission unit to the upper layer, and delete the incomplete radio link control layer service data transmission unit.
  • the technical solution of the embodiment of the present invention can be applied to the unacknowledged mode service in the evolved mobile access network system, and the sending end uses the best-effort transmission mode, such as buffering during the handover process.
  • RLC Radio Link Control
  • the data transmission unit of the layer such as the transmission process of the data transmission unit of the medium access control layer, does not stop the RLC layer reset, HARQ entity during the handover process.
  • the evolved mobile access network system improves data transmission reliability and improves user satisfaction.
  • FIG. 1 is a flow chart of handover between different eNBs of LTE
  • FIG. 2 is a schematic diagram of a best effort transmission according to an embodiment of the present invention.
  • the transmitting end before the handover should transmit the data transmission unit that has not been successfully transmitted as much as possible.
  • the switching method of the embodiment of the present invention is based on the best effort transmission design of FIG.
  • the transmitting end transmits the data transmission unit to the receiving end through the switched transmitting end as much as possible, and the data transmission unit is sent to the medium access control layer for the radio link control layer of the transmitting end before the handover, and is not The data transmission unit that the receiver receives correctly.
  • the transmitting end is the base station
  • the receiving end is the user equipment
  • the transmitting end before the handover is the source base station
  • the switched transmitting end is the target base station.
  • Send The terminal is the user equipment
  • the receiving end is the base station
  • the transmitting end before the switching and the transmitting end after the switching are all user equipments.
  • the embodiment of the present invention performs the performance of two best-effort transmission methods for the non-acknowledged mode service.
  • the format is used as an example to describe a handover method of a transmitting end across a base station.
  • Method 1 The ARQ entity caches the data transmission unit, and the ARQ entity sends the data transmission unit.
  • the data transmission unit that is sent to the medium access control layer and is not correctly received by the receiving end is buffered.
  • the transmitting end needs to reset the RLC, and the data transmission unit of the MAC layer of the transmitting end of the ARQ entity is deleted. It is the transmitting end of the embodiment of the present invention that buffers the data transmission unit that the ARQ entity sends to the medium access control layer and is not correctly received by the receiving end.
  • the transmitting end it is necessary for the transmitting end to send the data transmission unit to the receiving end as much as possible.
  • the handover procedure here may be performed after the source base station performs the handover decision.
  • the transmitting end is a user equipment, the handover process can be performed for the user equipment and after the measured value reaches a predetermined threshold.
  • the ARQ entity After confirming that the data transmission unit transmission is completed, the ARQ entity is notified, and the ARQ entity deletes the corresponding data transmission unit of the cache according to the notification of the HARQ entity. Transmitter HARQ entity
  • the ARQ entity may be notified after determining that the data transmission unit has been correctly received by the receiving end, and the HARQ entity may also notify the ARQ entity after determining that the data transmission unit has reached the maximum number of retransmissions.
  • the cached data transfer unit In this way, if the HARQ entity
  • the data transmission unit in the data transmission unit has not been correctly received by the receiving end, then the ARQ entity
  • the data transmission unit is also stored in the cache, and the sender sends the ARQ entity.
  • the data transmission unit in the cache can send the sender to the receiver and is not received by the receiver.
  • the received data transmission unit is sent out. If the sender is the source base station, the source base station can use the ARQ entity
  • the data transmission unit in the buffer is sent to the user equipment through the target base station, that is, the receiving end; if the sending end is the user equipment, the user equipment may use the ARQ entity
  • the data transmission unit in the buffer is sent to the target base station, that is, the receiving end.
  • the layer is described as an example.
  • the foregoing embodiment of the present invention may also cache the foregoing data transmission unit in the MAC layer, and the implementation process is basically the same, and is not described in detail herein.
  • Method 2 The ARQ entity sends a data transmission unit, and the HARQ entity also sends a data transmission unit.
  • the sender in method 2 does not have an ARQ entity during the handover process.
  • the data transmission unit sent to the medium access control layer and not received correctly by the receiving end performs buffer processing
  • the data transfer unit in . In this way, if the HARQ entity
  • the data transmission unit in the network is not correctly received by the receiving end, and the HARQ entity continues to ensure the transmission of the data transmission unit by means of HARQ entity confirmation; the transmitting end transmits the data transmission unit and the HARQ entity in the ARQ entity.
  • the data transmission unit in the middle can transmit the data transmission unit that needs to be sent to the receiving end and is not correctly received by the receiving end. If the source is the source base station, the source base station may send the data transmission unit in the ARQ entity to the user equipment, that is, the receiving end, through the target base station; if the sender is the user equipment, the user equipment may use the ARQ entity.
  • the data transmission unit in the middle is sent to the target base station, that is, the receiving end.
  • Method 1 the difference between Method 1 and Method 2 is:
  • the ARQ entity of Method 1 sends the data transmission unit to the HARQ entity.
  • the data transmission unit is not deleted, and the HARQ entity
  • the HARQ entity does not stop the transmission process of the data transmission unit.
  • the layer is carried out.
  • the user equipment detects whether a complete RLC PDU exists, if a complete RLC is detected
  • Entity detects whether there is a complete RLC SDU, and if it detects that there is a complete RLC SDU, sends the complete RLC SDU to a higher layer such as PDCP
  • the sender deletes the remaining data transmission units, such as deleting incomplete RLC PDUs and incomplete RLC SDUs.
  • the layer is carried out.
  • the user equipment detects whether there is a complete RLC SDU, if a complete RLC is detected
  • the sender deletes the remaining data transmission units, such as deleting the incomplete RLC SDU.
  • Reordering method of base station The base station performs reordering at the RLC layer.
  • the base station detects whether there is a complete RLC SDU. If a complete RLC SDU is detected, the complete RLC SDU is sent to the GW, and the base station deletes the remaining data transmission units, such as deleting the incomplete RLC SDU.
  • the source before the handover is the source eNB
  • the source after the handover is the target eNB.
  • the source eNB buffers the RLC SDU that is sent to the MAC for HARQ entity transmission.
  • Source eNB It is also possible to perform the above-described caching process among other squats, as long as the above-mentioned caching is performed in advance for a while before the switching is performed.
  • the source eNB After the source eNB sends the buffered RLC SDU to the HARQ entity, the corresponding RLC SDU is deleted from the cache. After the source eNB receives the acknowledgment of the target eNB handover, or after the source eNB sends the handover command to the UE, the source eNB starts to forward data to the target eNB.
  • the specific forwarding process is: the source eNB forwards the RLC SDU buffered by the ARQ entity to the target eNB.
  • the source eNB stops the transmission process of the HARQ entity until the HARQ ACK is received, or the HARQ data transmission unit reaches the maximum number of retransmissions.
  • the source eNB buffers the RLC SDU that is transmitted to the MAC for HARQ entity transmission.
  • Source eNB
  • the RLC SDU buffered by the source eNB needs to be deleted after being correctly received by the receiving end, that is, all the TBs included in the RLC SDU are subjected to the HARQ entity ACK.
  • the RLC SDU needs to be deleted from the cache.
  • the source eNB After the acknowledgment or the maximum number of retransmissions is reached, the RLC SDU needs to be deleted from the cache.
  • the source eNB After the source eNB receives the acknowledgment of the target eNB handover, or after the source eNB sends the handover command to the UE, the source eNB starts to forward data to the target eNB.
  • the specific forwarding process is: the source eNB buffers the RLC SDU and the HARQ entity in the ARQ entity cache. The data transmission unit in the buffer is forwarded to the target eNB
  • the source eNB does not stop the transmission process of the HARQ entity.
  • the user equipment of the present invention can reorder the data received by the following two methods.
  • User equipment reordering method 1 Timing in the handover command received by the UE (The handover starts) After the expiration, the UE starts to synchronize with the target eNB, the HARQ entity of the UE clears the data still being transmitted by each process, and the UE HARQ entity starts the RLC SDU detection. If the UE performs reordering at the MAC layer, the UE First RLC PDU
  • the processing in the system is the same; the UE performs SDU detection on the RLC layer, and when it detects that there is a complete RLC SDU, sends the complete RLC SDU to a higher layer such as PDCP. Finally, UE
  • User equipment reordering method 2 When the timing of the handover command received by the UE expires, the UE starts to synchronize with the target eNB, the HARQ entity of the UE clears the data still being transmitted by each process, and the UE HARQ entity starts to perform.
  • the RLC SDU detects that if the UE performs reordering at the RLC layer, the UE directly performs SDU detection on the RLC layer in the RLC entity, and when it detects that there is a complete RLC SDU, sends the complete RLC SDU to a higher layer such as PDCP. Finally, the UE deletes all associated remaining RLC SDUs and RLC PDUs.
  • the sender is the user equipment.
  • the user equipment caches the RLC SDUs that are sent to the MAC for HARQ entity transmission before performing the handover.
  • the user equipment may start the caching process after the measured value reaches a certain threshold, or may trigger the caching process after receiving the handover command sent by the source eNB.
  • All TBs included in the SDU have passed the HARQ entity ACK.
  • the RLC SDU After the confirmation or both reach the maximum number of retransmissions, the RLC SDU
  • the user equipment starts to synchronize with the target eNB, the RLC SDU buffered by the user equipment is updated to the reset RLC entity, and the data is forwarded to the target eNB.
  • the specific forwarding process is: The device stops the data sending process of each process of the current HARQ entity, and the user equipment forwards the RLC SDU in the ARQ entity cache to the target eNB.
  • the user equipment caches the RLC SDU that is sent to the MAC for HARQ entity transmission before performing the handover.
  • the user equipment may start the caching process after the measured value reaches a certain threshold, or may trigger the caching process after receiving the handover command sent by the source eNB.
  • the user equipment sends the buffered RLC SDU to the HARQ entity.
  • the user equipment After the expiration, the user equipment starts, and the target eNB synchronizes, the RLC SDU buffered by the user equipment is updated to the reset RLC entity, and starts to the target eNB.
  • the user equipment forwards the RLC SDU in the ARQ entity cache to the target eNB.
  • the uplink transmission direction is basically the same as the downlink transmission direction, and the difference is: in the uplink transmission direction, the source eNB
  • the base station can reorder the data received by using the following method.
  • the source eNB first deletes the data in each process being transmitted, and then, for the HARQ entity
  • the data in the reordering is detected, the complete RLC SDU is reassembled, and sent to the access GW.
  • the transmitting end device and the receiving end device provided by the embodiments of the present invention are all devices in the mobile access network system.
  • the sender device before the handover can be the source base station or the user equipment.
  • the transmitting device before switching uses the first method to implement the best-effort transmission of the data transmission unit, and the transmitting end
  • the device includes: a cache module and a sending module.
  • the cache module sends a data transmission unit that is sent by the radio link control layer to the medium access control layer and is not correctly received by the receiving end.
  • These data transfer units can be cached at the RCL layer or cached at the MAC.
  • the transmitting module performs the switching on the transmitting end before the switching, and sends the data transmission unit buffered in the buffer module of the transmitting end before the switching to the receiving end through the switched transmitting end.
  • the sending module sends the data transmission unit to the user equipment through the target base station, and when the transmitting end is the user equipment, the sending module sends the data transmission unit to the target base station.
  • the transmitting device before the switching uses the second method to implement the best-effort transmission of the data transmission unit.
  • the transmitting device before the switching includes: a first sending module and a second sending module.
  • the first sending module performs handover on the transmitting end, does not stop the transmission process of the data transmission unit of the medium access control layer, and sends the data transmission unit in the medium access control layer to the receiving device through the switched transmitting device. end.
  • the definition of the execution handover, the first transmission module stops transmitting, and the like are as described in the above embodiment of the method.
  • the second sending module performs handover on the transmitting end, and sends the data transmission unit in the radio link control layer of the transmitting end before the handover to the receiving end through the switched transmitting end device.
  • the receiving device can be a target base station or a user equipment.
  • a medium access control layer reordering unit and a first detecting module are disposed, and a second detecting module is disposed in the radio link control layer;
  • the media access control layer reordering unit performs reordering processing on the data transmission unit in the medium access control layer.
  • the first detecting module detects the reordered data transmission unit, sends the complete radio link control layer protocol data transmission unit to the radio link control layer, and deletes the incomplete radio link control layer protocol data unit. If the first detection module performs RLC PDU detection, the complete RLC PDU is first used.
  • the second detecting module sends the detected complete radio link control layer service data transmission unit to the upper layer, and deletes the incomplete radio link control layer service data transmission unit, for example, the second detection module is directly in the RLC entity.
  • the SDU detection of the RLC layer is performed. When it is detected that there is a complete RLC SDU, the complete RLC SDU is sent to the upper layer, such as the PDCP, and all related remaining RLC SDUs are deleted, as described in the foregoing method.
  • a radio link control layer reordering unit and a second detecting module are disposed therein;
  • the radio link control layer reordering unit performs reordering processing on the data transmission unit in the radio link control layer.
  • the second detecting module sends the detected complete radio link control layer service data transmission unit to the upper layer, and deletes the incomplete radio link control layer service data transmission unit, for example, the second detection module is directly in the RLC entity. Perform SDU detection on the RLC layer. When it is detected that there is a complete RLC SDU, send the complete RLC SDU to the upper layer, such as PDCP, and delete all related remaining RLC SDUs.
  • the technical solution of the embodiment of the present invention can be applied to the unacknowledged mode service in the evolved mobile access network system, and the sending end uses the best-effort sending method, such as buffering the RLC during the handover process.
  • the data transmission unit of the layer such as the transmission process of the data transmission unit of the medium access control layer, does not stop the RLC layer reset, HARQ entity during the handover process.
  • the sender can send its unsuccessfully transmitted data transmission unit in many different forms, further avoiding the uplink during the handover process.
  • the data loss phenomenon in the downlink direction; the embodiment of the present invention also clarifies the reordering process of the user terminal equipment in the evolved mobile access network system; thereby improving the evolved mobile access network system, improving the reliability of data transmission, and improving customer satisfaction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de transmission, un dispositif de transmission et un dispositif de réception adaptés à un service par mode avec accusé de réception dans le système de réseau à accès mobile. Sur la liaison descendante et ascendante du système de réseau à accès mobile, un émetteur tente avant la commutation de transmettre l'unité de transfert des données, transmise à la couche MAC depuis la couche RLC, et qui n'ont pas été reçues correctement par le récepteur, via l'émetteur après commutation, à destination d'un récepteur. Le procédé de transfert, le dispositif de transmission et le dispositif de réception permettent d'éviter le phénomène de perte de données au cours de la commutation sur la liaison ascendante/descendante et d'améliorer la fiabilité du transfert des données.
PCT/CN2007/070374 2006-07-27 2007-07-27 Procédé de transmission, dispositif de transmission et dispositif de réception WO2008014721A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2006101038196A CN101114992A (zh) 2006-07-27 2006-07-27 切换方法、发送端设备和接收端设备
CN200610103819.6 2006-07-27

Publications (1)

Publication Number Publication Date
WO2008014721A1 true WO2008014721A1 (fr) 2008-02-07

Family

ID=38996894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/070374 WO2008014721A1 (fr) 2006-07-27 2007-07-27 Procédé de transmission, dispositif de transmission et dispositif de réception

Country Status (2)

Country Link
CN (1) CN101114992A (fr)
WO (1) WO2008014721A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103260195A (zh) * 2012-02-17 2013-08-21 华为技术有限公司 视频业务数据传输方法及装置
CN113826418A (zh) * 2019-08-30 2021-12-21 华为技术有限公司 一种通信方法及装置

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5227695B2 (ja) * 2008-08-15 2013-07-03 株式会社エヌ・ティ・ティ・ドコモ ハンドオーバ方法及び無線アクセスネットワーク装置
KR101343899B1 (ko) 2009-04-27 2013-12-20 후아웨이 테크놀러지 컴퍼니 리미티드 정보를 처리하기 위한 방법, 시스템 및 기기
CN102447550B (zh) * 2010-09-30 2014-07-16 上海贝尔股份有限公司 混合自动重传请求进程处理的方法及设备
CN102186217A (zh) * 2011-06-02 2011-09-14 新邮通信设备有限公司 一种lte系统x2切换过程中的数据转发方法
CN102905308A (zh) * 2011-07-25 2013-01-30 中兴通讯股份有限公司 一种数据传输的方法、装置及eNB
JP6506021B2 (ja) * 2011-09-29 2019-04-24 ノキア ソリューションズ アンド ネットワークス オサケユキチュア 方法及び装置
CN105323852B (zh) * 2014-07-28 2019-12-24 中兴通讯股份有限公司 上行承载的修改方法及装置
CN106604328B (zh) * 2015-10-15 2019-05-10 中国电信股份有限公司 Mecc区域切换方法和系统
CN106790463B (zh) * 2016-12-08 2020-09-15 广州杰赛科技股份有限公司 Web配置文件重载过程的访问方法和系统
CN108429607B (zh) * 2017-02-14 2021-05-14 普天信息技术有限公司 一种通信系统中的harq重传处理方法
CN107682123A (zh) * 2017-10-23 2018-02-09 蒋丁贵 一种通信系统和方法
CN110831095B (zh) * 2018-08-11 2021-11-19 华为技术有限公司 通信方法和通信装置
CN112020877A (zh) * 2018-11-14 2020-12-01 Oppo广东移动通信有限公司 切换时数据传输的方法、装置、芯片及计算机程序
CN109547475B (zh) * 2018-12-25 2021-06-29 中电福富信息科技有限公司 基于本机网络数据流量采集的业务体验分析系统
WO2020164054A1 (fr) * 2019-02-14 2020-08-20 Oppo广东移动通信有限公司 Procédé et dispositif de traitement de service, puce et programme d'ordinateur
CN110177377B (zh) * 2019-05-07 2023-04-11 京信网络系统股份有限公司 一种rlc状态变量同步方法、装置、基站和存储介质
WO2024164157A1 (fr) * 2023-02-07 2024-08-15 北京小米移动软件有限公司 Procédé d'envoi d'informations et appareil de communication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1523797A (zh) * 2003-02-17 2004-08-25 ��������ͨ�ż����о����޹�˾ Wcdma系统增强型上行专用信道harq的重排序方法
WO2005034418A1 (fr) * 2003-10-07 2005-04-14 Telefonaktiebolaget Lm Ericsson (Publ) Programmation prioritaire de la commande d'acces au support pour des unites de donnees dans un flux de donnees
CN1669350A (zh) * 2002-09-24 2005-09-14 富士通株式会社 数据包传输/发送方法及移动通信系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1669350A (zh) * 2002-09-24 2005-09-14 富士通株式会社 数据包传输/发送方法及移动通信系统
CN1523797A (zh) * 2003-02-17 2004-08-25 ��������ͨ�ż����о����޹�˾ Wcdma系统增强型上行专用信道harq的重排序方法
WO2005034418A1 (fr) * 2003-10-07 2005-04-14 Telefonaktiebolaget Lm Ericsson (Publ) Programmation prioritaire de la commande d'acces au support pour des unites de donnees dans un flux de donnees

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103260195A (zh) * 2012-02-17 2013-08-21 华为技术有限公司 视频业务数据传输方法及装置
CN103260195B (zh) * 2012-02-17 2016-06-08 华为技术有限公司 视频业务数据传输方法及装置
CN113826418A (zh) * 2019-08-30 2021-12-21 华为技术有限公司 一种通信方法及装置

Also Published As

Publication number Publication date
CN101114992A (zh) 2008-01-30

Similar Documents

Publication Publication Date Title
WO2008014721A1 (fr) Procédé de transmission, dispositif de transmission et dispositif de réception
JP7060057B2 (ja) ソースノードで実行される方法及びソースノード
KR101387475B1 (ko) 복수의 네트워크 엔터티를 포함하는 이동 통신시스템에서의 데이터 처리 방법
KR100938090B1 (ko) 이동통신 시스템에서 핸드오버 수행 방법 및 장치
AU2003276747B2 (en) Method for moving a receive window in a radio access network
KR101461293B1 (ko) Ｕｔｒａ ｒ6 셀과 ｒ7 셀 간의 핸드오버를 제어하기 위한 방법 및 장치
EP2208301B1 (fr) Procédé et appareil pour suppression de paquets pdcp
US20070110101A1 (en) Method of Handling RLC SDUs During RLC Reset and RLC Re-establishment in a UMTS System
US8295265B2 (en) Method for handling radio bearer messages during reset and reestablishment in a wireless system
WO2009033400A1 (fr) Procédé et dispositif d'indication de retransmission de données en cas de commutation de zone dans un système lte
TW200935940A (en) Method for performing handover procedure and creating data
US9198106B2 (en) Radio bearer dependent forwarding for handover
EP1788751A1 (fr) Un procédé de traitement des SDUs RLC lors d'une remise à zéro des RLC et d'une re-mise en place des RLC dans un système UMTS
US9191870B2 (en) Handover method for reducing the amount of data forwarded to a target node
WO2011020229A1 (fr) Procédé de traitement de données sur une liaison de relais et dispositif correspondant
CN104469859A (zh) 一种提高数据传输性能的方法和系统
CN109788516B (zh) 一种lte切换过程中下行数据的确认方法及设备
KR20120128078A (ko) 이동통신 시스템의 제2 계층의 데이터 전달 방법
WO2011147177A1 (fr) Procédé et système de transmission de données
KR20100053000A (ko) 무선 통신 시스템에서 핸드 오버 시 데이터 포워딩 방법 및이를 수행하는 시스템

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07785382

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: RU

122 Ep: pct application non-entry in european phase

Ref document number: 07785382

Country of ref document: EP

Kind code of ref document: A1