公开(公告)号：US20170325118A1

公开(公告)日：2017-11-09

申请号：US15656629

申请日：2017-07-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiming Li ,  Longyu Cao ,  Fenqin Zhu

IPC: H04W28/02 ,  H04L12/18 ,  H04L29/06 ,  H04W12/04 ,  H04W88/02

CPC classification number: H04W28/0252 ,  H04L12/1845 ,  H04L12/185 ,  H04L63/06 ,  H04W4/06 ,  H04W12/04 ,  H04W48/20 ,  H04W76/40 ,  H04W88/02

Abstract: The present invention relates to the communications field and provides a group communication method. The method includes: obtaining location information of UE; when determining that an L-BM-SC is deployed at a location of an eNB to which the UE belongs, determining, according to the location information of the UE, an MCE that manages the eNB to which the UE belongs; and sending a first bearer activation request to the MCE, where the first bearer activation request includes the location information of the UE, so that the MCE determines, according to the location information of the UE, a first L-BM-SC deployed at the location of the eNB to which the UE belongs, and establishes a bearer between the first L-BM-SC and a GCS AS, where the bearer between the first L-BM-SC and the GCS AS is used by the GCS AS to send a packet to the first L-BM-SC.

公开(公告)号：US20150201447A1

公开(公告)日：2015-07-16

申请号：US14670047

申请日：2015-03-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiming Li ,  Shuhui Hu ,  Jixing Liu

IPC: H04W76/02 ,  H04W28/02 ,  H04W36/00

CPC classification number: H04W76/026 ,  H04W28/0263 ,  H04W36/0066 ,  H04W76/16 ,  H04W88/06

Abstract: Embodiments of the present invention disclose a service data transmission method. An AN entity of a first network sends a first request message to an AN entity of a second network corresponding to a target cell in which a UE is located, so as to request the AN entity of the second network to establish a radio bearer for the UE. The AN entity of the first network sends a second request message to the UE, so as to request the UE to establish the radio bearer with the AN entity of the second network. After the AN entity of the second network has established the radio bearer with the UE, the AN entity of the first network transmits service data to the UE by using the AN entity of the second network.

Abstract translation: 本发明的实施例公开了一种业务数据传输方法。 第一网络的AN实体向与UE所在的目标小区相对应的第二网络的AN实体发送第一请求消息，以便请求第二网络的AN实体建立无线承载 UE。 第一网络的AN实体向UE发送第二请求消息，以便请求UE与第二网络的AN实体建立无线承载。 在第二网络的AN实体已经与UE建立无线承载之后，第一网络的AN实体通过使用第二网络的AN实体向UE发送业务数据。

公开(公告)号：US11032858B2

公开(公告)日：2021-06-08

申请号：US16582566

申请日：2019-09-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jingwang Ma ,  Zhiming Li

IPC: H04W76/10 ,  H04W48/16 ,  H04W48/18 ,  H04W60/00 ,  H04W4/06 ,  H04W8/02

Abstract: This disclosure relates to the technical field, and discloses a network access method, a terminal, an access network, and a core network. The terminal obtains, based on the network service identifier, the network slice type identifier corresponding to a service identifier, and then accesses the network slice based on the access mode corresponding to the network slice type, thereby avoiding unavailability of the service caused by a failure to correctly access the network slice and improving service quality.

公开(公告)号：US10536284B2

公开(公告)日：2020-01-14

申请号：US15632136

申请日：2017-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiming Li ,  Longyu Cao

IPC: H04N7/173 ,  H04L12/18 ,  H04W56/00 ,  G08B25/08 ,  H04N7/16 ,  H04N7/167 ,  H04N21/234 ,  H04N21/235 ,  H04W4/12 ,  H04W84/02 ,  H04W4/06

Abstract: The present disclosure discloses a data transmission method and apparatus. User equipment (UE) measures and transmits a transmission delay to a group communication service application server (GCS AS), or the GCS AS itself determines a transmission delay, so that the GCS AS may determine, according to the transmission delay, a time of sending a packet on a multicast path or a unicast path. Therefore, a problem of out of order of packets or a loss of a packet due to a transmission delay is resolved, and continuity of a communication service is maintained.

公开(公告)号：US10448348B2

公开(公告)日：2019-10-15

申请号：US15700661

申请日：2017-09-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiming Li ,  Longyu Cao ,  Fenqin Zhu

IPC: H04W56/00 ,  H04L29/06 ,  H04W4/06 ,  H04L12/18 ,  H04W4/08

Abstract: Embodiments of the present disclosure provide an RTP packet transmission method and apparatus. A GCS AS or a BM-SC provides synchronization source information of the GCS AS and synchronization source information of the BM-SC for UE, so that the UE can continuously receive RTP packets. On one hand, the GCS AS (or the BM-SC) may provide the synchronization source information of the GCS AS (or the synchronization source information of the BM-SC) for the UE by sending an RTP packet. On the other hand, the GCS AS (or the BM-SC) further provides the synchronization source information of the BM-SC (or the synchronization source information of the GCS AS) for the UE. Therefore, when being in a unicast (multicast) transmission mode, the UE can obtain both of the synchronization source information of the GCS AS and the synchronization source information of the BM-SC.

公开(公告)号：US20170302403A1

公开(公告)日：2017-10-19

申请号：US15631343

申请日：2017-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Longyu Cao ,  Yong Yu ,  Zhiming Li

IPC: H04L1/00 ,  H04L12/18 ,  H04N21/637 ,  H04L29/06 ,  G06F11/07

CPC classification number: H04L1/004 ,  G06F11/07 ,  H04L12/18 ,  H04L12/1868 ,  H04L65/4076 ,  H04L2001/0092 ,  H04N21/637

Abstract: A file repair method includes receiving, by a broadcast/multicast service center, a file repair request message sent by user equipment, where the file repair request message includes a Uniform Resource Identifier (URI) corresponding to file data to be repaired and a transmit session identifier of a File Delivery over Unidirectional Transport FLUTE session that transmits the file data. The method further includes determining, according to the transmit session identifier, the FLUTE session that transmits the file data, and determining repair data of the file data according to the FLUTE session that transmits the file data and further according to the URI corresponding to the file data.

公开(公告)号：US20160119395A1

公开(公告)日：2016-04-28

申请号：US14985635

申请日：2015-12-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiming Li ,  Anni Wei

IPC: H04L29/06

CPC classification number: H04L65/4076 ,  H04L12/184 ,  H04L12/189 ,  H04L65/80

Abstract: A method for supporting multicast of streaming media, and a related apparatus and system are disclosed. The method includes: receiving a notification message reported by a proxy server, where the notification message includes that first user equipment and second user equipment separately access a same streaming media resource; switching a transmission manner of the streaming media resource from a unicast manner to a multicast manner; sending combined group information to a broadcast multicast service center (BM-SC), where the combined group information includes an Internet Protocol (IP) address of the first user equipment, an IP address of the second user equipment, and a download address of the streaming media resource; and sending a notification response message to the proxy server, so that the proxy server learns that the BM-SC enables a multimedia broadcast multicast service (MBMS).

Abstract translation: 公开了一种用于支持流媒体多播的方法，以及相关的装置和系统。 该方法包括：接收由代理服务器报告的通知消息，其中通知消息包括第一用户设备和第二用户设备分别访问相同的流媒体资源; 将流媒体资源的传输方式从单播方式切换到组播方式; 将组合组信息发送到广播多播服务中心（BM-SC），其中组合组信息包括第一用户设备的因特网协议（IP）地址，第二用户设备的IP地址和第二用户设备的下载地址 流媒体资源; 并向代理服务器发送通知响应消息，使得代理服务器获知BM-SC启用多媒体广播多播服务（MBMS）。

公开(公告)号：US11051078B2

公开(公告)日：2021-06-29

申请号：US16579872

申请日：2019-09-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhiming Li ,  Shuo Wang

IPC: H04N21/6405 ,  H04W4/06 ,  H04L12/18 ,  H04N21/2343 ,  H04N21/239 ,  H04N21/4402 ,  H04W8/04 ,  H04L29/06

Abstract: Embodiments of the present application relate to the communications field, and provide a video distribution method and a device. The method includes: receiving, by an SCEF, a first request message sent by a third-party server, where the first request message includes an MBMS capability negotiation parameter that is used for video distribution and that is requested by the third-party server; sending, by the SCEF, a second request message to an HSS according to the first request message, to request the HSS to expose an MBMS capability; sending, by the SCEF, a third request message to a broadcast multicast service center BM-SC when the SCEF receives a second response message returned by the HSS when the HSS determines to allow the exposure of the MBMS capability, to request to obtain MBMS capability information exposed by the BM-SC; and sending the MBMS capability information obtained from the BM-SC to the third-party server.

公开(公告)号：US10972212B2

公开(公告)日：2021-04-06

申请号：US16206174

申请日：2018-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Li Ji ,  Jun Chen ,  Zhiming Li

IPC: H04L1/00 ,  H04W24/08 ,  H04L12/24 ,  H04L29/06 ,  H04W28/24

Abstract: A quality parameter transmission method includes: sending, by the network side device, a first request message to the terminal, where the first request message is used to request a quality parameter related to user experience of a preset service; and after receiving the first request message from the network side device, sending, by the terminal, the quality parameter to the network side device. The network side device obtains, from the terminal, the quality parameter related to user experience of the preset service, and therefore can evaluate network operation quality by using the quality parameter, to facilitate network optimization, provide better network quality for the terminal, and improve user experience.

公开(公告)号：US20180123962A1

公开(公告)日：2018-05-03

申请号：US15845792

申请日：2017-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiming Li ,  Longyu Cao

IPC: H04L12/853 ,  H04L12/26 ,  H04L29/06

CPC classification number: H04L47/2416 ,  H04L43/0852 ,  H04L65/403 ,  H04L65/4076 ,  H04L65/608 ,  H04L65/80 ,  H04L67/02 ,  H04W4/06 ,  H04W4/08

Abstract: When a Real-Time Transport Protocol (RTP) packet receiving manner of a user equipment (UE) is switched between a unicast transmission manner and a multicast transmission manner, a group communication service application server (GCS AS) obtains a time difference between a time at which the UE receives a first RTP packet before the switching and a time at which the UE receives a second RTP packet after the switching. The GCS AS calculates a delay difference, according to the time difference, of RTP packet transmissions in different transmission manners, and adjusts, according to the delay difference, timing for RTP packet transmission in the unicast transmission manner.