公开(公告)号：US10368275B2

公开(公告)日：2019-07-30

申请号：US15887458

申请日：2018-02-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04W36/00 ,  H04W72/04 ,  H04W76/30 ,  H04W76/34 ,  H04W76/15

Abstract: The present application discloses a method for a master eNB (MeNB) handover or a secondary eNB (SeNB) handover in a small cell system, comprising: sending by a source MeNB information of a source secondary cell (Scell) to a target MeNB; sending by the target MeNB a message to the source MeNB, the message notifying the source MeNB to suspend data transmission on a bearer of the SeNB. Until a message of data transmission resuming is received, the data transmission/reception is started to continue. The method for a MeNB handover or a SeNB handover provided in the present application may reduce the reconfiguration of the bearer for the UE, avoid releasing the bearer by error, and improve the system throughput and the data rate of transmission.

公开(公告)号：US10368268B2

公开(公告)日：2019-07-30

申请号：US14910494

申请日：2014-08-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04W28/10 ,  H04W16/08 ,  H04W16/32 ,  H04W92/20 ,  H04W28/02 ,  H04W8/08 ,  H04W76/10 ,  H04W36/12 ,  H04W8/14 ,  H04W84/04

Abstract: The present disclosure discloses methods, systems and devices for supporting local breakout in a small cell architecture. A MME sends information of a local breakout bearer for a UE to a MeNB, and the MeNB determines a local home network to which the local breakout bearer belongs according to the received information. When the MeNB is to switch the local breakout bearer between different eNBs, the MeNB selects an eNB in the local home network to which the local breakout bearer belongs as a target eNB. By the present disclosure, the continuity of local breakout traffic may be ensured when a User Equipment (UE) moves in a small cell scenario, thereby avoiding data loss and improving user experiences. Further, a local breakout bearer may be released timely and reasonably, thereby saving system resources.

公开(公告)号：US10313067B2

公开(公告)日：2019-06-04

申请号：US15010359

申请日：2016-01-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Shichang Zhang ,  Yingyang Li ,  Jingxing Fu ,  Yi Wang ,  Chengjun Sun ,  Lixiang Xu

IPC: H04L1/18

Abstract: An apparatus and method for feeding back hybrid automatic repeat request-acknowledgement (HARQ-ACK) information are provided. The apparatus and method include user equipment (UE) that first receives a downlink grant (DL-GRANT) which schedules downlink HARQ transmission in a time-frequency bundling window corresponding to an uplink subframe used for feeding back HARQ-ACK, obtains a DL downlink assignment index (DL DAI) in the DL-GRANT, and determines a mapping value of each DL DAI. Then, according to the mapping value of the corresponding DL DAI, the HARQ-ACK bit of each HARQ feedback unit is mapped to a corresponding bit of a feedback bit sequence. According to the method and apparatus provided by the present disclosure, useless HARQ-ACK bits may be effectively removed, and efficiency for feeding back HARQ-ACK may be increased. As such, a downlink peak rate of a UE is ensured.

公开(公告)号：US10292152B2

公开(公告)日：2019-05-14

申请号：US15113790

申请日：2015-01-16

Applicant: Samsung Electronics Co., Ltd

Inventor： Hong Wang ,  Lixiang Xu ,  Chengjun Sun ,  Bin Yu

IPC: H04W72/04 ,  H04L29/08

Abstract: The present disclosure discloses cache-based data transmission methods and apparatuses. The method is implemented as follows. An apparatus where a caching node is located reports a caching capability to a network side, and the caching node is configured to cache data. The network side sends a cache indicating parameter to the apparatus where the caching node is located, and maintains a data list. Wherein, the cache indicating parameter is configured to control the caching node to cache the data which has the property of high repetition probability and/or high cache utilization, and the data list is a list of the data cached in the caching node. When the caching node has cached data requested by a UE, the UE obtains the requested data from the caching node.

公开(公告)号：US10205582B2

公开(公告)日：2019-02-12

申请号：US15115629

申请日：2015-01-29

Applicant: Samsung Electronics Co., Ltd

Inventor： Yu Qiu ,  Lixiang Xu ,  Xiaowan Ke ,  Hong Wang

IPC: H04W16/32 ,  H04L5/00 ,  H04W92/20

Abstract: The present invention relates to the technical field of radio communications, and particularly to a method and apparatus for processing activation/deactivation of inter-eNodeB carrier aggregation. Embodiments of the present invention provide a method for processing activation/deactivation of inter-eNodeB carrier aggregation, comprising the steps of: receiving, by UE, an MAC CE for activation/deactivation of an SCell sent by a master eNodeB or a secondary eNodeB; determining, by the UE, the corresponding SCell; and performing, by the UE, activation/deactivation to the corresponding SCell according to the indication information in the MAC CE for activation/deactivation.

公开(公告)号：US10200912B2

公开(公告)日：2019-02-05

申请号：US15021665

申请日：2014-09-12

Applicant: Samsung Electronics Co., Ltd

Inventor： Hong Wang ,  Lixiang Xu ,  Xiaowan Ke

IPC: H04W28/08 ,  H04W76/10 ,  H04W76/12 ,  H04W84/04

Abstract: Examples of the present disclosure describe a method for setting up local breakout bearers, including: sending, by a master base station (MeNB), an IP address of a local gateway (LGW) corresponding to a neighbor base station; receiving, by the MeNB, correlation identifier information associated with the LGW; wherein the correlation identifier information comprises a tunnel number indicating a local breakout bearer is to be set up; forwarding, by the MeNB, the correlation identifier information; and setting up, by the neighbor base station, the local breakout bearer with the LGW according to the correlation identifier information. Examples of the present disclosure also describe another method for setting up local breakout bearers and a device corresponding to the method. When the technical scheme described in various examples of the present disclosure is employed, the service local breakout is supported in the small cell architecture, therefore the load on the core network backhaul can be reduced, the throughput of user data can be improved, and the data loss can be avoided.

公开(公告)号：US09986469B2

公开(公告)日：2018-05-29

申请号：US14878667

申请日：2015-10-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang ,  Xiaowan Ke

IPC: H04W36/00 ,  H04W76/04 ,  H04W76/06 ,  H04L5/00 ,  H04W76/02

CPC classification number: H04W36/0027 ,  H04L5/0053 ,  H04W76/11 ,  H04W76/20 ,  H04W76/34

Abstract: The present application discloses a switch supporting method comprising: an eNB sends a path switching request message to an MME to notify the MME of information on a bearer remaining unchanged; the MME reserves the bearer remaining unchanged and does not trigger a deactivation process for the bearer remaining unchanged; the MME sends a modify bearer request message to an SGW. With the present application, data loss can be avoided and service continuity is ensured when a UE moves in a small cell scenario.

公开(公告)号：US20180020388A1

公开(公告)日：2018-01-18

申请号：US15669767

申请日：2017-08-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Gert Jan Van Lieshout ,  Hong Wang

IPC: H04W36/32 ,  H04W36/00

CPC classification number: H04W36/32 ,  H04W36/0033 ,  H04W36/0083

Abstract: By the method of the present invention, the automatic adjustment of mobility parameter between different frequencies or different access systems becomes available and can be supported in the case of the self-optimization of mobile load balance and the self-optimization of mobile robustness, so as to improve the performance of mobile communication system.

公开(公告)号：US09860734B2

公开(公告)日：2018-01-02

申请号：US14354784

申请日：2012-11-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lixiang Xu ,  Hong Wang

IPC: H04W8/02 ,  H04W36/00 ,  H04W84/04

CPC classification number: H04W8/02 ,  H04W36/0016 ,  H04W36/0033 ,  H04W36/0061 ,  H04W84/047

Abstract: A communication method is provided. The communication method includes receiving, by a Mobile Management Entity (MME), information accessed by a User Equipment (UE) through a Relay Node (RN), and sending, by the MME, a Tracing Region Identification (TAI) list of an RN cell where the UE is located to the UE. A network device and an access network device are further provided. By sending a TAI list of an RN cell to the UE, when TAI(s) of the cell are contained in the TAI list of the relatively stationary UE, the UE does not need to initiate an uplink TAU process, and thereby unnecessary signaling and network jamming can be reduced, and at the same time, paging efficiency and network performance can be improved.

公开(公告)号：US20170048725A1

公开(公告)日：2017-02-16

申请号：US15236368

申请日：2016-08-12

Applicant: Samsung Electronics Co., Ltd

Inventor： Lixiang Xu ,  Hong Wang ,  Xiaowan Ke

IPC: H04W16/26 ,  H04L5/00 ,  H04W24/02

CPC classification number: H04L5/0055 ,  H04W24/02 ,  H04W88/08

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). An apparatus implements a method for self-configuration and self-optimization. A method for operating a base station (BS) in a wireless communication network comprises transmitting a message including information on coverage modification indicating whether the message is for pre-notification of cell re-configuration, to another BS, and receiving an acknowledgement message from the another BS.

Abstract translation: 本公开涉及提供用于支持更高数据速率的第5代（5G）或5G通信系统超越第四代（4G）通信系统，例如长期演进（LTE）。 一种装置实现了自配置和自优化的方法。 一种用于在无线通信网络中操作基站（BS）的方法包括：发送包括指示消息是否用于小区重新配置的预先通知的覆盖修改的信息的消息，以及从另一个BS接收确认消息 另一个BS。