Patents by Inventor Huarui Liang

Huarui Liang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8594011
    Abstract: A method and an apparatus for establishing a connection between evolved Node Bs (eNBs) are provided. The method includes after finding a new neighboring cell, sending, by a first network node, a first request message carrying information of a third network node, to which the neighboring cell belongs to a second network node, sending, by the second network node, a second request message carrying cell information of the first network node to the third network node, sending, by the third network node, a first response message carrying information of the first network node to the second network node, and sending, by the second network node, a second response message carrying cell information of the third network node to the first network node, for establishing, by the first network node, a communication connection between the first network node and the third network node with the cell information of the third network node.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: November 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong Wang, Huarui Liang, Lixiang Xu
  • Publication number: 20130250838
    Abstract: A method for selecting a Policy and Charging Enforcement Function (PCEF) and a Policy and Charging Rule Function (PCRF), for monitoring members in a monitored group is provided. The method includes allocating a same group Identity(ID) for members in a monitored group, selecting a Packet Data Network Gateway (PGW)/PCEF or a PCEF for a member corresponding to the first user to access the network in the monitored group according to the group ID of the member, selecting a PCRF for the member, saving at least one of a corresponding relationship between the group ID and an Internet Protocol (IP) address of the PGW/PCEF, and a corresponding relationship between the group ID and an IP address of the PCEF, and saving at least a corresponding relationship between the group ID and an IP address of the PCRF.
    Type: Application
    Filed: March 22, 2013
    Publication date: September 26, 2013
    Applicant: Samsung Electronics Co. Ltd.
    Inventors: Huarui LIANG, Hong WANG, Lixiang XU, Xiaowan KE
  • Publication number: 20130176990
    Abstract: A method for determining relocation process and a method for determining handover process are proposed in the present invention. Wherein the method for determining relocation process includes: informing, by a home base station (HNB) gateway (GW) or an operation, administration and maintenance (OAM) device, the HNB of information of whether the HNB GW supports an optimized relocation process; determining, by the HNB, the relocation process to be implemented for the user equipment (UE) according to the information of whether the HNB GW supports the optimized relocation process. The methods according to the present invention may reduce the failure probability of the relocation/handover and improve the relocation/handover efficiency.
    Type: Application
    Filed: September 21, 2011
    Publication date: July 11, 2013
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Lixiang Xu, Hong Wang, Huarui Liang
  • Publication number: 20130044639
    Abstract: An apparatus and a method for setting up a communication relationship in a mobile communication system are provided. The method includes determining, by a relay node, whether a new neighboring cell is found, obtaining information of the new neighboring cell, and reporting the same to a Donor evolved Node B (DeNB) that it belongs to, finding, by the DeNB, a network node that the new neighboring cell belongs to, determining whether an X2 interface is set up between the DeNB and the network node that the new neighboring cell belongs to, and if it is determined that the X2 interface is not set up with the network node, setting up the X2 interface with the network node that the new neighboring cell belongs to. It is realized that the relay node can communicate with the network node that the new neighboring node belongs to through the DeNB.
    Type: Application
    Filed: May 11, 2011
    Publication date: February 21, 2013
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Hong Wang, Huarui Liang, Lixiang Xu
  • Patent number: 8378814
    Abstract: A method of allocating the moving area list of user equipment which relating to wireless communication technology. Interacting signaling between network and UE is reduced. The utilization efficiency of network resource is enhanced. The method includes, receiving the area ID which is pre-defined from UE, acquiring the history information of the last allocated moving area list from the mobility management entity (MME) which allocated the last moving area list, allocating new moving area list according to the history information and the received area ID. Accordingly, a MME and UE are disclosed.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: February 19, 2013
    Assignee: China Academy of Telecommunications Technology
    Inventors: Chunshan Xiong, Yihua Jiang, Huarui Liang, Hui Xu
  • Publication number: 20130021996
    Abstract: A number of methods reduce inter-cell interference under multi-carrier configuration. One of the methods includes a first NodeB transmitting, to a second NodeB, Primary Component Carrier (PCC) information or Primary cell (PCell) information configured by the first NodeB for a UE served by the first NodeB. The method also includes the second NodeB responding to the first NodeB. As such, when configuring CA for a UE served by the second NodeB, the second NodeB is able to configure the PCC information or PCell information for the UE served by the second NodeB according to the PCC information or PCell information indicated by the first NodeB.
    Type: Application
    Filed: July 19, 2012
    Publication date: January 24, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hong Wang, Huarui Liang, Lixiang Xu
  • Publication number: 20130010756
    Abstract: A method and an apparatus for supporting mobility of a User Equipment (UE) are provided. When a UE moves into a Local Internet Protocol Access (LIPA)-enabled network or exits an LIPA-enabled network, the method is able to select an optimal user-plane node for the UE, provide optimal network routings and optimize network resource usage. For service continuity of the UE, when the UE performs remote access to an LIPA-enabled network from another network or when the UE moves into an LIPA-enabled network, the network re-selects an optimal user-plane node for the UE while keeping the remote service of the UE uninterrupted. When a UE moves from an LIPA-enabled network to another network, the network selects an optimal user-plane node for the UE while keeping the LIPA service uninterrupted. The method optimizes network resource usage and at the same time maintains the service quality perceived by the user.
    Type: Application
    Filed: July 9, 2012
    Publication date: January 10, 2013
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Huarui LIANG, Hong WANG, Lixiang XU
  • Publication number: 20130010754
    Abstract: Methods for avoiding handover failure are provided. The method includes determining, by a source Base Station (BS), to perform a handover of a User Equipment (UE); determining, by the source BS, whether a target BS connects with a user plane node serving the UE at the source BS; and releasing resources, when the target BS does not connect with the user plane node serving the UE at the source BS.
    Type: Application
    Filed: July 5, 2012
    Publication date: January 10, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Lixiang XU, Hong WANG, Huarui LIANG
  • Publication number: 20120294283
    Abstract: The present invention provides a method for data forwarding. The method includes: transmitting, by a source system, Selected IP Traffic Offload (SIPTO)/Local Internet Protocol Access (LIPA) indication information to a destination system, the SIPTO/LIPA indication information indicating that the source system adopts an optimized user plane network structure; performing, by the destination system, an optimized data forwarding mechanism after receiving the SIPTO/LIPA indication information. According to the present invention, it can be ensured that a system sets up an optimized data forwarding mechanism during a handover process of a terminal.
    Type: Application
    Filed: January 12, 2011
    Publication date: November 22, 2012
    Inventors: Huarui Liang, Hong Wang, Lixiang Xu
  • Publication number: 20120258767
    Abstract: A method for guaranteeing correct establishment of Local IP Access service includes: obtaining the service type of a user equipment (UE) and the equipment capability type of a base station. The method also includes determining whether the UE and the base station are consistent. The method also includes, in response to determining that the UE and the base station are consistent, establishing LIPA service for the UE. The method also includes, in response to determining that the UE and the base station are inconsistent, deciding whether to establish LIPA service for the UE according to the preserved strategy.
    Type: Application
    Filed: April 6, 2012
    Publication date: October 11, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Huarui Liang, Hong Wang, Lixiang Xu
  • Publication number: 20120195299
    Abstract: Methods and apparatus are provided for supporting Local IP Access (LIPA) services to a User Equipment (UE). A network node receives a request for accessing a PDN which is identified by an APN of a service access point, from the UE. The network node determines whether the UE is permitted to access LIPA services via a CSG base station based on LIPA accessibility information. The network node determines whether requirements for connecting the UE to the LIPA services are met based on the LIPA accessibility information and device capabilities of a serving base station of the UE, when the UE is permitted to access the LIPA services. The LIPA services are activated for the UE, when the requirements for connecting the UE to the LIPA services are met.
    Type: Application
    Filed: January 31, 2012
    Publication date: August 2, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Huarui LIANG, Hong WANG, Lixiang XU
  • Publication number: 20120177005
    Abstract: Methods are provided for supporting mobility of a UE in a system without an HeNB GW. An S1 setup request message is sent to an MME by an HeNB. The S1 setup request message includes version information of the HeNB. An RRC connection is established between the UE and the HeNB. An initial UE message is sent from the HeNB to the MME. An NAS message is sent from the UE to the MME. An establish bearer request message is sent from the MME to a corresponding SGW based on an IP address of an LGW. The IP address of the LGW is obtained by the MME through the S1 setup request message. An establish bearer response message is sent from the LGW to the SGW in response to the establish bearer request message. The establish bearer response message is sent from the SGW to the MME.
    Type: Application
    Filed: January 6, 2012
    Publication date: July 12, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Huarui LIANG, Hong WANG
  • Publication number: 20120147807
    Abstract: The present invention discloses a data synchronization method and system. The method includes that: a first device adds a time stamp to a received data packet and transmits the data packet to a second device; the second device determines a transmission period to which the data packet belongs according to the time stamp of the data packet, and transmits data packets of different services which belong to the same transmission period by using air resources corresponding to the transmission period after the data packets of the different services which belong to the same transmission period are multiplexed. By the technical scheme of the present invention, air resources can be fully utilized.
    Type: Application
    Filed: August 20, 2010
    Publication date: June 14, 2012
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Hong Wang, Himke Van Der Velde, Huarui Liang, Lixiang Xu
  • Publication number: 20120147872
    Abstract: The invention provides a method and system for remotely accessing. A mobility management device receives a remote access requesting message sent by User Equipment (UE), determines whether the UE possesses right for accessing a home network under the control of a home base station according to contents in the remote access requesting message, when determining the UE possesses the right, selects a GateWay (GW) device. Technical scheme of the invention enables a subscriber to remotely access a home network, even if the subscriber is not in the home network.
    Type: Application
    Filed: August 4, 2010
    Publication date: June 14, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Haris Zisimopoulos, Huarui Liang
  • Publication number: 20120147834
    Abstract: A method for supporting access to a remote private internet protocol (IP) network, comprises, at a network entity, receiving an access request message from a wireless communication unit, wherein the access request message comprises an identifier. The method further comprises determining from the identifier that the access request message indicates a remote access request to the remote private IP network of the wireless communication unit; and sending an access acceptance message to the wireless communication unit.
    Type: Application
    Filed: August 18, 2010
    Publication date: June 14, 2012
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Haris Zisimopoulos, Huarui Liang
  • Publication number: 20120135753
    Abstract: A method for managing hot cell devices includes receiving at least one of location information of at least one hot cell device, type information of at least one hot cell, location information of at least one terminal and uplink signal energy of at least one terminal measured by a hot cell device. The method also includes determining a hot cell device to be opened using the at least one of the location information of at least one hot cell device, the type information of at least one hot cell, the location information of at least one terminal and the uplink signal energy of at least one terminal. In addition, the method includes transmitting a message instructing the hot cell device to open.
    Type: Application
    Filed: November 23, 2011
    Publication date: May 31, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hong Wang, Huarui Liang
  • Publication number: 20120099511
    Abstract: The present invention discloses a data synchronization method and system. The method includes that: a first device adds a time stamp to a received data packet and transmits the data packet to a second device; the second device determines a transmission period to which the data packet belongs according to the time stamp of the data packet, and transmits data packets of different services which belong to the same transmission period by using air resources corresponding to the transmission period after the data packets of the different services which belong to the same transmission period are multiplexed. By the technical scheme of the present invention, air resources can be fully utilized.
    Type: Application
    Filed: June 18, 2010
    Publication date: April 26, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hong Wang, Huarui Liang, Lixiang Xu
  • Publication number: 20120063437
    Abstract: A method for supporting PDN GW selection, comprising the following steps of: receiving by an MME a local route optimization service request information; searching by the MME the IP address of a PDN GW which supports local route optimization according to the IP address of a PDN GWh; sending by the MME a bearer request establishment message to the PHN GWh. The method of the present invention can ensure core network equipment to find PDN GW correctly while HeNB system supports local route optimization.
    Type: Application
    Filed: May 7, 2010
    Publication date: March 15, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Huarui Liang, Hong Wang, Lixiang Xu, Xiaoqiang Li
  • Publication number: 20120058792
    Abstract: The present invention discloses a method of and system for performing the access control as well as a radio resource management entity. The method includes: detecting, by a hybrid radio resource management entity, an access control trigger event; determining, by the hybrid radio resource management entity, a non-closed subscriber group, CSG, User Equipment to be removed; disconnecting, by the hybrid radio resource management entity, the connection with the non-CSG User Equipment to be removed. In accordance with the present invention, a hybrid radio resource management entity is able to control the access of User Equipment, so as to guarantee the access of CSG User Equipment.
    Type: Application
    Filed: April 9, 2010
    Publication date: March 8, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Huarui Liang, Lixiang Xu, Hong Wang
  • Publication number: 20110274030
    Abstract: A method and an apparatus for establishing a connection between evolved Node Bs (eNBs) are provided. The method includes after finding a new neighboring cell, sending, by a first network node, a first request message carrying information of a third network node, to which the neighboring cell belongs to a second network node, sending, by the second network node, a second request message carrying cell information of the first network node to the third network node, sending, by the third network node, a first response message carrying information of the first network node to the second network node, and sending, by the second network node, a second response message carrying cell information of the third network node to the first network node, for establishing, by the first network node, a communication connection between the first network node and the third network node with the cell information of the third network node.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 10, 2011
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Hong WANG, Huarui LIANG, Lixiang XU