公开(公告)号：WO2012156855A1

公开(公告)日：2012-11-22

申请号：PCT/IB2012/052231

申请日：2012-05-03

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  JAISWAL, Suraj ,  WEN, Renhua

Inventor： JAISWAL, Suraj ,  WEN, Renhua

IPC: H04W36/02 ,  H04W36/14 ,  H04W88/16

CPC classification number: H04W36/023 ,  H04W36/14 ,  H04W88/16

Abstract: Empty GRE packets are used to provide in-order delivery of data packets for a session to a UE during inter-RAT handover. In particular, an empty GRE packet sent from a source gateway in a source RAN to a target gateway in a target RAN indicates to the target gateway the end of forwarded data packets from the source gateway. The target gateway sends data packets received from the source gateway to the UE until the empty GRE packet is received. Upon receipt of the empty GRE packet, the target gateway begins sending data packets received directly from a home network gateway to the UE.

Abstract translation: 空间GRE分组用于在RAT间切换期间向UE提供用于会话的数据分组的按顺序传送。 特别地，从源​​RAN中的源网关发送到目标RAN中的目的网关的空GRE分组向目标网关指示来自源网关的转发数据分组的结束。 目标网关将从源网关接收的数据包发送给UE，直到接收到空的GRE数据包为止。 在接收到空的GRE分组后，目标网关开始直接从家庭网络网关接收的数据包发送给UE。

公开(公告)号：WO2012038884A1

公开(公告)日：2012-03-29

申请号：PCT/IB2011/054104

申请日：2011-09-19

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  WANG, Dawei ,  GUPTA, Rajeev ,  WEN, Renhua

Inventor： WANG, Dawei ,  GUPTA, Rajeev ,  WEN, Renhua

IPC: G06F9/445

CPC classification number: G06F8/65 ,  G06F8/656

Abstract: A method within network element, for directing traffic away from cards of first virtual partition, before changing software on cards of first virtual partition, until after cards of first virtual partition have session data, while network element services sessions. Redistribute sessions, serviced by cards of first virtual partition, to cards of second virtual partition. Each of virtual partitions has control card and line card. Direct traffic away from cards of first virtual partition, prior to taking line card of first virtual partition offline. After redistributing sessions, change software on line card of first virtual partition, while cards of second virtual partition service sessions, including redistributed sessions. After changing software, synchronize session data, for sessions serviced by cards of second virtual partition to cards of first virtual partition. Traffic is directed away from cards before changing software on line card, and until after synchronizing session data to cards of first partition.

Abstract translation: 网络元件内的方法，用于在第一虚拟分区的卡上改变软件之前，直到第一虚拟分区的卡具有会话数据，同时在网络元件服务会话之前将流量从第一虚拟分区的卡引导。 将由第一虚拟分区的卡服务的会话重新分配给第二虚拟分区的卡。 每个虚拟分区都有控制卡和线卡。 在第一个虚拟分区的线路卡离线之前，直接流量远离第一个虚拟分区的卡。 在重新分配会话后，更改第一个虚拟分区的线卡上的软件，同时更改第二个虚拟分区服务会话的卡，包括重新分发的会话。 在更改软件之后，将第二个虚拟分区的卡服务的会话同步到第一个虚拟分区的卡中。 在更换线卡上的软件之前，直到将会话数据同步到第一个分区的卡之后，流量就被指示远离卡。

公开(公告)号：WO2013171633A1

公开(公告)日：2013-11-21

申请号：PCT/IB2013/053720

申请日：2013-05-08

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

Inventor： JAISWAL, Suraj ,  WEN, Renhua

IPC: H04W88/16 ,  H04W8/08 ,  H04W76/02 ,  G06F15/16

CPC classification number: H04W88/16 ,  H04W8/085 ,  H04W76/11

Abstract: A network element that acts as a local mobility anchor (LMA) in a communications network efficiently distributes signaling messages using a data plane and a control plane having a plurality of processes executing on a plurality of processing units. When a network connection ID of a received signaling message is not mapped to a host process in a steering table, the signaling message is sent to a process in the control plane. A second process is assigned to be the host process for the network connection, and the steering table is updated to indicate this assignment. Upon receipt of a second signaling message with the network connection ID, it is efficiently sent to the second process because of the updated steering table. A mobility access gateway (MAG) also utilizes a steering table with network connection ID to host process mappings to efficiently distribute signaling messages.

Abstract translation: 充当通信网络中的本地移动锚点（LMA）的网络元件使用数据平面和具有在多个处理单元上执行的多个处理的控制平面有效地分配信令消息。 当接收到的信令消息的网络连接ID未映射到转向表中的主机进程时，该信令消息被发送到控制平面中的进程。 第二个进程被分配为网络连接的主机进程，并且更新指导表以指示该分配。 在接收到具有网络连接ID的第二信令消息时，由于更新的转向表，它被有效地发送到第二进程。 移动性接入网关（MAG）还利用具有网络连接ID的转向表来主持过程映射以有效地分配信令消息。

公开(公告)号：WO2012038872A1

公开(公告)日：2012-03-29

申请号：PCT/IB2011/054074

申请日：2011-09-17

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  GUPTA, Rajeev ,  WEN, Renhua

Inventor： GUPTA, Rajeev ,  WEN, Renhua

IPC: G06F9/445

CPC classification number: G06F8/65 ,  G06F8/656 ,  G06F9/445

Abstract: Virtually partition control and line cards of network element into virtual partition A and virtual partition B, each including a control card and a line card. Redistribute sessions serviced by cards of virtual partition A to cards of virtual partition B. Then change software on, at least, line card of virtual partition A, while cards of virtual partition B service sessions, including sessions redistributed from cards of virtual partition A. Next redistribute sessions serviced by cards of virtual partition B to cards of virtual partition A. Then change software on line card of virtual partition B and control card of virtual partition B, while cards of virtual partition A service sessions including sessions redistributed from cards of virtual partition B. Next eliminate virtual partitions and redistribute portion of sessions currently serviced by cards of virtual partition A to cards of virtual partition B.

Abstract translation: 虚拟分区A和虚拟分区B几乎将网元的分区控制和线卡划分成虚拟分区A，每个虚拟分区B都包含控制卡和线卡。 将由虚拟分区A的卡服务的会话重新分配给虚拟分区B的卡。然后，至少将虚拟分区A的线卡改变为虚拟分区B服务会话的卡，包括从虚拟分区A的卡重新分配的会话。 接下来将虚拟分区B的卡片重新分配给虚拟分区A的卡片，然后在虚拟分区B的线路卡和虚拟分区B的控制卡上更换软件，而虚拟分区A的服务会话包括从虚拟卡 分区B.接下来消除虚拟分区，并将当前由虚拟分区A的卡服务的会话的一部分重新分配给虚拟分区B的卡。

公开(公告)号：WO2011016013A2

公开(公告)日：2011-02-10

申请号：PCT/IB2010/053578

申请日：2010-08-06

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  WEN, Renhua ,  KEAN, Brian

Inventor： WEN, Renhua ,  KEAN, Brian

IPC: H04L12/56

CPC classification number: H04L49/254 ,  H04L49/30

Abstract: A method for managing a plurality of subscriber sessions tied to mobile devices in a router, each subscriber session of the plurality of subscriber sessions assigned to a Sine card in the router, the line card implementing a data plane entity and a control card implementing a control plane entity, the method composing* redistributing each subscriber session irs the plurality of subscriber sessions assigned to a failed line card in the routei to minimize packets lost and maximize subscriber session retention, redistributing including classifying each subscriber session in ihe plurality of subscriber sessions into a plurality of priority queues, in response to detection of the failed line card, transferring each subscriber session in the plurality of subscriber sessions assigned to the failed line card to one of a plurality of operating line cards in priority queue order

Abstract translation: 一种用于管理与路由器中的移动设备相关联的多个订户会话的方法，所述多个订户会话中的每个订户会话被分配给路由器中的正弦卡，所述线卡实现数据平面 实体和实现控制面实体的控制卡，所述方法包括：*将每个订户会话重新分配在路由i中分配给故障线卡的多个订户会话以最小化分组丢失并最大化订户会话保留;重新分配包括对每个订户会话进行分类 在多个订户会话中将所述多个订户会话分成多个优先级队列，响应于检测到所述故障线卡，将分配给所述故障线卡的所述多个订户会话中的每个订户会话优先转移到多个工作线卡中的一个 排队顺序

公开(公告)号：WO2015019235A3

公开(公告)日：2015-02-12

申请号：PCT/IB2014/063390

申请日：2014-07-24

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

Inventor： LIMAYE, Namrata ,  WEN, Renhua

IPC: H04L12/939

Abstract: According to one embodiment, a method for performing reconciliation sync includes a first network device configured as an active inter-chassis redundancy (ICR) device in response to detecting a switchover request while performing a bulk sync transitioning to serving as the standby ICR device and performing a reconciliation sync while serving as the standby ICR device, the reconciliation sync comprises starting a transmission of session records that failed to be transmitted during the bulk sync to the second network device. According to one embodiment, a method for performing reconciliation sync includes a first network device configured as a standby ICR device receiving a plurality of session records from a second network device of the ICR system. The method further includes updating a global version number based on record version numbers of the received plurality of session records, and maintaining local session records based on the received plurality of session records.

公开(公告)号：WO2013034997A1

公开(公告)日：2013-03-14

申请号：PCT/IB2012/054029

申请日：2012-08-07

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  JAISWAL, Suraj ,  WEN, Renhua

Inventor： JAISWAL, Suraj ,  WEN, Renhua

IPC: H04W36/12

CPC classification number: H04W36/0016 ,  H04L47/34 ,  H04W36/12

Abstract: Empty GRE packets are used to ensure in-order delivery of data packets for a session to a UE during intra- EUTRAN handover involving SGW relocation. In particular, a PGW sends an empty GRE packet per PDN session of the UE to a source SGW upon handover execution to indicate the end of pre-handover data packets delivered to the source SGW. Upon receipt of the empty GRE packet, the source SGW generates an end marker packet, and sends it to the source eNode B. The source eNode B forwards buffered, pre-handover data packets not delivered to the UE, followed by the end marker packet, to the target eNode B, either directly (X2 interface) or indirectly (GTP- U tunnel between source and target SGWs). The target e Node B then sends the pre-handover data packets, and post-handover data packets delivered to it by the PGW, to the UE in order, in reliance on the end marker packet.

Abstract translation: 空GRE分组被用于确保在涉及SGW重定位的EUTRAN切换期间向UE的会话的数据分组的按顺序传送。 特别地，PGW在切换执行时向UE SGW发送每个PDN会话的空GRE分组，以指示递送到源SGW的切换前数据分组的结束。 源SGW在接收到空的GRE分组时，生成结束标记分组，并将其发送到源eNode B。源eNode B转发未传递到UE的缓冲的切换前数据分组，随后是终止标记分组 ，直接（X2接口）或间接（源和目标SGW之间的GTP-U隧道）到目标eNode B。 目标e节点B然后根据终端标记分组将按照PGW向其发送的切换前数据分组和切换后数据分组顺序发送给UE。

公开(公告)号：WO2012156856A1

公开(公告)日：2012-11-22

申请号：PCT/IB2012/052232

申请日：2012-05-03

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  JAISWAL, Suraj ,  WEN, Renhua

Inventor： JAISWAL, Suraj ,  WEN, Renhua

IPC: H04W36/02 ,  H04W36/14 ,  H04W88/16

CPC classification number: H04W36/023 ,  H04W36/14 ,  H04W88/16

Abstract: An empty GRE packet along with a sequence number provides in-order delivery of data packets for a session to a UE during inter-RAT handover. In particular, an empty GRE packet sent from a source gateway in a source RAN (Radio Access Network) to a target gateway in a target RAN includes a sequence number to indicate to the target gateway the end of forwarded data packets from the source gateway. The target gateway sends data packets received from the source gateway to the UE until the empty GRE packet with the expected sequence number is received. Upon receipt of the empty GRE packet containing the expected sequence number, the target gateway begins sending data packets received directly from a home network gateway to the UE.

Abstract translation: 一个空的GRE分组连同一个序列号在RAT间切换期间提供一个会话到UE的数据分组的按顺序传送。 特别地，从源​​RAN（无线电接入网络）中的源网关向目标RAN中的目标网关发送的空GRE分组包括向目标网关指示来自源网关的转发数据分组的结束的序列号。 目标网关将从源网关接收的数据包发送给UE，直到接收到具有预期序列号的空GRE分组。 当接收到包含预期序列号的空GRE分组时，目标网关开始向家庭网络网关发送直接从归属网络网关接收的数据分组。