Soft Handoff Patents (Class 455/442)
  • Patent number: 8615245
    Abstract: A radio network controller includes: a determination unit configured to determine a transmit diversity method to be used to transmit a signal from a base station to a mobile station, in accordance with a soft handover status of the mobile station; and an instruction/notification unit configured to instruct the transmit diversity method to the base station, in accordance with the determination result by the determination unit.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: December 24, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masafumi Usuda, Takehiro Nakamura, Hidehiro Ando, Takuya Sato, Hiroyuki Ishii
  • Patent number: 8615236
    Abstract: Techniques to dynamically manage wireless connections using feature prioritization are described. For example, a mobile computing device may comprise a connection management module operative to access a list of one or more wireless networks, compare feature set information for the one or more wireless networks, select a wireless network based on the comparison, and initiate a wireless connection using the selected wireless network, wherein the feature set information is contained in the list. Other embodiments are described and claimed.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: December 24, 2013
    Assignee: Palm, Inc.
    Inventors: Anand Kashikar, Wen Zhao
  • Patent number: 8615211
    Abstract: A method for spectrum sensing is described comprising receiving a signal using a plurality of receive antennas; forming a set of received signals including the received signal of each antenna; determining a cyclic auto-correlation of the set of received signals; estimating, for each receive antenna, channel state information of the radio channel via which the receive antenna receives the signal based on the determined cyclic auto-correlation; performing maximum ratio combining of the received signal samples based on the estimated channel state information; determining a measure of the cyclostationarity of the received signal based on the result of the maximum ratio combining; and performing cyclostationarity detection spectrum sensing based on the determined measure of the cyclostationarity of the received signal.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: December 24, 2013
    Assignee: Agency for Science, Technology and Research
    Inventors: Jitvanichphaibool Kommate, Ying Chang Liang, Yong Hong Zeng
  • Patent number: 8615240
    Abstract: Methods and systems are provided for facilitating a handoff to a target sector that is not in the neighbor list of a mobile station's current source sector. In at least one embodiment, a mobile station detects (i) that a target sector is a handoff candidate and (ii) that the target sector is not listed in a neighbor list of a source sector; requests to be served by the target sector at least in part by sending an access probe to the target sector; and transitions from engaging in an active communication session via a communication path not including the target sector to doing so via a communication path that does include the target sector. The access probe may include an indication that the mobile station is in an active state. In at least one embodiment, at least one network entity may carry out the one or more network-side aspects that may facilitate the above-described method.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: December 24, 2013
    Assignee: Sprint Spectrum L.P.
    Inventor: Sachin R. Vargantwar
  • Publication number: 20130337817
    Abstract: A system, method, and computer readable medium for a softer handoff comprises receiving a Pilot Strength Measurement Message (PSMM) to request a handoff by a selector distribution unit (SDU), receiving a softer handoff request message by a channel element control (CEC), receiving a softer handoff request message by a radio call control (RCC), receiving a traffic channel assignment message by the CEC, and receiving an indication of an addition of a new sector for the softer handoff by the SDU.
    Type: Application
    Filed: August 19, 2013
    Publication date: December 19, 2013
    Applicant: UBEEAIRWALK, INC.
    Inventors: Myoung Chul Choi, Hyunyung Cha, Hyeon Bong Park, Jae Kyu Yoo
  • Patent number: 8611902
    Abstract: The present invention relates to a broadband wireless access system, and more particularly, to a method and an apparatus for acquiring system information in a mobile communication system in which a legacy system and an advanced system coexist. A method of receiving system information on a peripheral base station in a mobile communication system includes receiving a second message containing time information for receiving, through a second region of a serving base station, a first message broadcasted through a first region of the serving base station and receiving the first message through the first region of the serving base station using the time information, the first message containing system information on neighbor legacy base stations and/or on the first region of neighbor advanced base stations which operate in a mixed mode.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: December 17, 2013
    Assignee: LG Electronics Inc.
    Inventors: In Uk Jung, Yong Ho Kim, Ki Seon Ryu
  • Patent number: 8611906
    Abstract: A mobile communications system is disclosed. The mobile communications system includes a first unit, provided at a base station apparatus, which controls a base station status by determining a request from an upper-layer general base station apparatus; and a second unit, provided at the general base station apparatus, which monitors for one or more mobile station apparatuses entering into/appearing in, or exiting/disappearing from a cell formed by the general base station apparatus, and, if at least one of the mobile station apparatuses enters into/appears in the cell formed by the general base station apparatus, requests for changing the base station apparatus to a service status, and, if all of the mobile station apparatuses exit/disappear from the cell formed by the general base station apparatus, requests for changing the base station apparatus to a radio unit stop status.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: December 17, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Shinichi Mori, Akira Ishii, Mikio Iwamura
  • Patent number: 8611899
    Abstract: A base station used in a communication system including the base station for broadcasting service information to a wireless communication terminal, and the wireless communication terminal for receiving the service information during an idle state, the base station includes: a storing section for storing information of other base stations existing nearby the base station and service compliant information indicative of whether the other base stations are compliant with transmission of the service information.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: December 17, 2013
    Assignee: Kyocera Corporation
    Inventor: Hiroyuki Hidaka
  • Patent number: 8611305
    Abstract: Techniques for improving the capacity of a wireless communications system using interference cancellation (IC). In an early decoding and IC aspect, a frame transmitted from a user to a base station may be decoded prior to the entire frame being received by the base station. The remaining portion of the frame may then be re-constructed at the base station prior to its reception, and cancelled from the receive signal to reduce the interference to frames received from other users. In a power control aspect for early decoding and IC, the power control target level at a local base station may be adjusted in response to successfully early decoding a frame, without affecting the overall outer loop power control operation. Further aspects include late decoding techniques for utilizing the IC of other users' signals to improve the probability of decoding a given user's frames, as well as techniques for traffic channel demodulation using channel re-estimation.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: December 17, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Peter J. Black, Christopher G. Lott, Rashid A. Attar, Yu-Cheun Jou, Jun Ma
  • Patent number: 8605705
    Abstract: Techniques for multiplexing and transmitting multiple data streams are described. Transmission of the multiple data streams occurs in “super-frames”. Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing. A wireless device can select and receive individual data streams.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: December 10, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Vijayan, Aamod Khandekar, Fuyun Ling, Gordon Kent Walker, Murali Ramaswamy Chari
  • Patent number: 8605636
    Abstract: Disclosed is a method capable of minimizing a period of time required for a handover network acquisition procedure when a handover occurs between communication networks which provide communication services using different mobile communication technologies. When a modem for a handover communication network performs network acquisition due to the occurrence of a handover, the modem previously extracts information about a handover channel from a Universal Handover Direction Message (UHDM), and uses the extracted channel information in a network acquisition procedure. Accordingly, the modem for a handover communication network can easily acquire a handover network even without using a preferred roaming list, and can omit an radio frequency (RF) tuning procedure by extracting a corresponding code division multiple access (CDMA) channel from the received UHDM, thereby reducing the total handover processing time period and increasing the success rate of the handover.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: December 10, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jeong-Min Noh, Myoung-Hoon Cho
  • Patent number: 8605678
    Abstract: A system and method for performing anticipatory hand-off setup between communication networks. Various aspects of the present invention may, for example and without limitation, provide a system and method for performing anticipatory hand-off setup between communication networks. For example and without limitation, prior to a determination to perform a hand-off of a mobile communication device from a first communication network to a second communication network, a determination may be made that hand-off setup information should be communicated with the second communication network. For example, such a determination may be made in anticipation of a hand-off that may or may not happen. Such hand-off setup information may then be communicated with the second communication network. Such communicated setup information may then, for example, be utilized to at least partially prepare for performing the anticipated hand-off.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: December 10, 2013
    Assignee: Broadcom Corporation
    Inventor: Jeyhan Karaoguz
  • Patent number: 8600389
    Abstract: Embodiments of the present invention disclose a method and an apparatus for controlling user equipment's residing in a cell. With the embodiments, a base station of a virtual cell transmits a signal including common channel information, a frequency of the signal of the virtual cell is the same as a frequency of a signal transmitted by a base station of a source cell, the common channel information includes a pilot, a location area code and an inter-frequency reselection threshold, or includes a pilot and a location area code, and the content of the common channel information guides user equipment to reside in a target cell through reselection or through location update. Moreover, according to the embodiments, the co-channel interference caused by the signal onto the source cell is small, and the interference onto normal services of the source cell is reduced. Massive configuration in the source cell is also avoided.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: December 3, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Mingyi Deng, Xu Tian
  • Patent number: 8599790
    Abstract: A media access gateway includes a wireless network interface, a tunneling module, a proxy mobility agent module, and an address assignment module. The wireless network interface establishes a link with a wireless terminal. The tunneling module establishes tunnels with first and second local mobility anchors, associated with first and second packet data networks, respectively. The proxy mobility agent module stores a mapping of assigned addresses to local mobility anchor identifiers. The proxy mobility agent selects a first or second local mobility anchor in response to the mapping and a source address of the wireless terminal, and the tunneling module tunnels the packet to the selected local mobility anchor. The address assignment module transmits an address assignment message, which includes the first assigned address and a prefix usage indicator, to the wireless terminal. The first assigned address includes a network-based or client-based mobility address according to the prefix usage indicator.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: December 3, 2013
    Assignee: Marvell International Ltd.
    Inventors: Ameya Damle, Stefano Faccin, Fan Zhao
  • Patent number: 8600423
    Abstract: Method and apparatus for improving a noise power estimate in a wideband CDMA (WCDMA) network are disclosed and may include calculating a total noise power estimate for a downlink channel based on a plurality of control channel bits from a plurality of different types of control channels. The plurality of control channel bits may include at least two of: dedicated physical channel (DPCH) transmit power control (TPC) bits, DPCH pilot bits, and common pilot channel (CPICH) bits. A first noise power estimate may be calculated for the downlink channel based on a plurality of the DPCH TPC bits. A value of at least one of the plurality of DPCH TPC bits may not be known when the at least one of the plurality of DPCH TPC bits is received.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: December 3, 2013
    Assignee: Broadcom Corporation
    Inventors: Severine Erceg, Vinko Erceg, Mark Kent, Uri M. Landau
  • Patent number: 8600390
    Abstract: A device receives a request for a service for a user equipment associated with a source radio access network, and establishes a connection with the user equipment via a circuit switched fallback procedure. The device also receives, from the source radio access network, information associated with one or more source cells, and provides the service to the user equipment through a target radio access network. The device further uses the information to select one of the one or more source cells for the user equipment to return after the service terminates, terminates the service, and returns the user equipment to the selected source cell.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: December 3, 2013
    Assignee: Telefonaktiebolet L M Ericsson (publ)
    Inventors: Jari Vikberg, Tomas Hedberg, Paul Schliwa-Bertling
  • Patent number: 8599786
    Abstract: The present invention relates to change of base stations transferring packet switched communications between a mobile station and a support node. The base station change is of lossless type allowing lossless base station change of packet switched communications in unacknowledged mode between the mobile station and the support node.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: December 3, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Ingemar Backlund, John Walter Diachina, Gunnar Mildh, Lars Tedenvall
  • Patent number: 8594048
    Abstract: A method for supporting MS ranging is provided in an embodiment of the present invention. The method includes: determining the public frame that is to be used for allocating the dedicated initial ranging transmission opportunity information; and notifying the MS of information about the determined public frame to potential target RSs. A BS and an RS are provided in embodiments of the present invention. This invention helps determine a public frame that is to be used for allocating the dedicated initial ranging transmission opportunity information for an MS in an MR radio telecommunication system, when the potential target BSs of the MS include RSs.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: November 26, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ting Li, Yanling Lu, Liangliang Zhang
  • Patent number: 8594690
    Abstract: Methods and apparatus are disclosed for reporting downlink signal measurement information in a wireless communication system utilizing coordinated multipoint transmission from two or more subcells in each of a plurality of cells. The method comprises monitoring signal quality metrics for a first set of downlink signals comprising at least a first common channel signal transmitted from two or more subcells of a neighbor cell, evaluation of the monitored signal quality metrics, with respect to one or more predetermined criterion, and the selective increasing of a measurement rate, an event evaluation rate, or both, for at least a first subcell-specific signal from the neighbor cell, based on the evaluation.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: November 26, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Muhammad Kazmi, Bengt Lindoff
  • Patent number: 8594671
    Abstract: A method of handling minimization of drive tests, hereafter called MDT, for a mobile device is disclosed. The method comprises receiving a MDT measurement configuration from a first RAT, starting a timer for a MDT measurement logging corresponding to a timer value in the MDT measurement configuration, and keeping the timer running when the mobile device performs an inter-RAT procedure to move from the first RAT to a second RAT.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: November 26, 2013
    Assignee: HTC Corporation
    Inventor: Chih-Hsiang Wu
  • Patent number: 8594047
    Abstract: The present invention discloses an inter-Node B handover method, wherein a target eNB sends a Handover Request Acknowledge message including handover reference frequency point information through a source eNB to a user equipment, wherein the handover reference frequency point information includes center frequency point information of an uplink component carrier designated for the user equipment to initiate a random access request. Further, the present invention discloses another inter-Node B handover method, wherein a target eNB orderly arrays center frequency point information of uplink component carriers of a target cell to obtain a first list, the target eNB sends a Handover Request Acknowledge message including the first list through a source eNB to a user equipment, and the user equipment requests a random access according to the center frequency point information of a first uplink component carrier.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: November 26, 2013
    Assignee: ZTE Corporation
    Inventors: Yin Gao, Bin Yu, Peng Hao, Peng Zhu
  • Patent number: 8594046
    Abstract: The invention concerns a method of performing an intra-segment handover (HO) of a mobile station (MS) from a source access point (AP1) of a tree-structured segment (S1) of an Ethernet-compliant telecommunication network to a target access point (AP2) of said segment (S1), as well as a switch (SW-123) to support the execution of this method. After establishing contact between the mobile station (MS) and the target access point (AP2), the mobile station (MS) sends an update entry request addressed to the segment gateway switch (GW). The update entry request is received by a switch (SW-123) positioned in the tree structure of the segment (S1) hierarchically above the source and target access points (AP1, AP2) and below the segment gateway switch (GW). The switch (SW-123) checks whether its forwarding database contains a first entry comprising an address of the mobile station (MS) received by means of the update entry request.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: November 26, 2013
    Assignee: Alcatel Lucent
    Inventors: Ralph Schlenk, Christian Hermsmeyer, Armin Dekorsy
  • Patent number: 8594672
    Abstract: Systems and techniques for managing the use of almost blank subframes in wireless communication systems. Base stations in a wireless network monitor load information affecting network nodes. Load information may be in the form of load metric information. The load information may be exchanged between system elements, and an almost blank subframe proportioning may be updated by one or more of the base stations, and information relating to the updated proportioning. The updated almost blank subframe proportioning may be used in scheduling and load metric calculation, as well as almost blank subframe patterning. Updating of almost blank subframe information and load metric information may be performed iteratively.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: November 26, 2013
    Assignee: Nokia Siemens Networks Oy
    Inventors: Rajeev Agrawal, Rangsan Leelahakriengkrai, Anand S. Bedekar, Guang Han
  • Patent number: 8594063
    Abstract: A wireless access point supports data rates and advertises an indication of a minimum data rate for advertisement. Those of the supported data rates that are less than the minimum data rate for advertisement are reserved for limited use. A mobile station that requests to communicate with the wireless access point at one of the one or more supported data rates that are reserved for limited use is informed by the wireless access point how much time communications with the wireless access point at one or more of the one or more supported data rates reserved for limited use will be permitted.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: November 26, 2013
    Assignees: BlackBerry Limited, McMaster University
    Inventors: Terence Douglas Todd, Vytautas Robertas Kezys, Mohammed Nawaf Smadi
  • Patent number: 8594633
    Abstract: Disclosed are a base station device and a call connection method for reducing a call connection delay. According to the device and method; in ST301, a terminal acquires an identifier managed in a base station; in ST302, radio resource information required for a service desired by the terminal is decided; in ST303, by using the identifier acquired in ST301, the terminal transmits a request for establishing RRC connection to the base station. In ST304, according to the radio resource information received from the terminal, the base station decides the radio resource to be set for the terminal before authentication by an upper layer node, and the base station extracts information destined to the upper layer node. In ST305, the information destined to the upper layer node is transmitted to the upper layer node. In ST306, the setting contents of the radio resource decided in ST304 are transmitted to the terminal.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: November 26, 2013
    Assignee: Panasonic Corporation
    Inventors: Takahisa Aoyama, Akito Fukui
  • Patent number: 8588177
    Abstract: It is difficult to perform handover between mobile terminals. In addition, when a session handover is performed between terminals whose mobilities are managed by individual Mobile IP HAs, it is difficult for an IETF standard to normally treat an Uplink packet. A network system includes: a function 9 that manages bind information between terminals which are arranged in a network and are subjected to the control of a user; a function 5 that translates an address; a function 7 that performs encapsulation between HAs; and a function that is provided in a terminal and transmits the bind information and a handover trigger to the bind information management function 9.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: November 19, 2013
    Assignee: NEC Corporation
    Inventor: Shozo Fujino
  • Patent number: 8588174
    Abstract: A method and dual-mode device for handing over an active call from the device's VoIP interface to its cellular interface. The active call is placed on hold and a second call is established from the VoIP interface to the cellular interface of the dual-mode device, wherein the second call includes a VoIP leg from the VoIP interface of the dual-mode device to a communications server. The remote device involved in the VoIP call is then instructed to initiate a new call to the communications server referencing the second call and causing the communications server to replace the VoIP leg of the second call with the new call, thereby joining the remote party to the second call connected to the cellular interface of the dual-mode device. The active call is then terminated.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: November 19, 2013
    Assignee: Blackberry Limited
    Inventor: Alexander Shatsky
  • Patent number: 8588782
    Abstract: The disclosure is related to handover for user equipment between femtocell base stations having different closed subscriber group (CSG) identifiers. A method may be provided for allowing handover of user equipment between base stations belonging to different organizations. The method may include collecting, by a first base station, information corresponding to identifiers of neighbor base stations, selecting handover-allowable base stations from the neighbor base stations having an organization identifier different from that of the first base station, and enabling handover for the user equipment from the first base station to a second base station based on the selected handover-allowable base stations for a handover request of the user equipment from the first base station to the second base station.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: November 19, 2013
    Assignee: KT Corporation
    Inventors: Ki-Ho Lee, Yong-Gyoo Lee, Yung-Ha Ji
  • Patent number: 8588761
    Abstract: A method of handling measurement reporting for a network in a wireless communication system is disclosed. The network maintains an active set for storing at least a cell identity which is capable of providing a service to a mobile device of the wireless communication system. The method includes receiving a measurement report message from the mobile device, wherein the measurement report message is used for notification of a cell replacement procedure and includes a first cell identity corresponding to a first cell, determining whether the first cell identity is included in the active set and whether a number of the cell identity in the active set exceeds a threshold, to generate a result, and performing the cell replacement procedure according to the result.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: November 19, 2013
    Assignee: Acer Incorporated
    Inventor: Kuo-Liang Chang
  • Patent number: 8583123
    Abstract: A method for controlling radio links in a cellular communication system. The method comprises: receiving an active set update message from the system controller via at least one of the first radio link and the second radio link at the first user equipment to direct the first user equipment to terminate the first radio link, determining a communication status of the first radio link according to a current quality of the first radio link and a current quality of the second radio link after receiving the active set update message, and managing the first radio link and the second radio link according to the communication status.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: November 12, 2013
    Assignee: Mediatek Inc.
    Inventors: Chia-Lan Chang, Li-Chi Huang
  • Patent number: 8577369
    Abstract: A system, method and apparatus for facilitating handoff of communications with a user device between a first communication network having a first domain technology, and a second communication network having a second domain technology different from the first domain technology, the system, method and apparatus includes an anchor point that establishes a first service flow with the first communication network, and a second service flow with the second communication network based upon a triggering event respectively, with the user device, and a handoff device that receives at least one handoff parameter for determining a handoff operation of the user device from the first communication network to the second communication network.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: November 5, 2013
    Assignee: Apple, Inc.
    Inventors: Guyves Achtari, Eric Bernier, Kent Felske
  • Patent number: 8577376
    Abstract: A system and method include determining location information identifying a location of a portable information handling device, sorting a list of network profiles based on the location information, and scanning the list of sorted network profiles to identify an access point for connecting the portable information handling device to a network.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: November 5, 2013
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Nathan J. Peterson, Arnold S. Weksler, John Carl Mese
  • Patent number: 8571555
    Abstract: A method for handover of a mobile terminal from a source node to a target node in a wireless telecommunications network, including the steps of: adding an indication in the preparation phase by which source node indicates to the target node if it is the one preferred or not. If a target node is not the one preferred but is still selected by the UE, it may indicate this to the source node as by a specific new message that comes earlier in the handover process than a message requesting the source node to release resources following successful handover to a new node. The source node can then in this case cancel handover preparations to other target nodes earlier and also start data forwarding where applicable earlier.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: October 29, 2013
    Assignee: Alcatel Lucent
    Inventors: Philippe Godin, Sudeep Kumar Palat
  • Patent number: 8571553
    Abstract: Automated PilotPN code conflict resolution using an access point with the assistance of one or more access terminals is disclosed. An exemplary method includes determining a set of access points, as well as determining a set of PilotPN codes used by the set of access points. Detection is then made concerning whether at least two access points of the set of access points have conflicting PilotPN codes. A first PilotPN code is allocated to one of the at least two access points having conflicting PilotPN codes. Additionally, one or more other PilotPN codes, which are distinct from the first PilotPN code, are allocating to remaining access points of the at least two access points having conflicting PilotPN codes. Corresponding apparatus and other exemplary methods are also disclosed.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: October 29, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Rajat Prakash, Alexei Gorokhov, Fatih Ulupinar, Parag Arun Agashe, Pranav Dayal
  • Patent number: 8571556
    Abstract: A method of communicating signals in a mobile communication system having a first base station, a second base station, and a base station controlling node controlling the first base station and the second base station is presented. The method includes during a handover, receiving, at the first base station, a control message from the second base station including a sequence number indicating at least one data unit to be transmitted to a mobile station or to be received from a mobile station, wherein the first base station receives the control message from the second base station without being controlled by the base station controlling node.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: October 29, 2013
    Assignee: LG Electronics Inc.
    Inventors: Young Dae Lee, Sung Duck Chun, Myung Cheul Jung
  • Patent number: 8565767
    Abstract: Methods of handing off an access terminal in a meshed wireless system is disclosed. Data that is received by an access point in the meshed wireless system may be routed to an access terminal via a downstream serving access point. The access point may also be configured to communicate a connection state of the access terminal to a target access point if a handoff of the access terminal from the serving access point to the target access point is requested.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: October 22, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Gavin Bernard Horn, Donald William Gillies
  • Patent number: 8565761
    Abstract: A mobile communication method according to the present invention includes steps of: performing, at a mobile station (UE) having established a first connection in a first cell, a cell selection process when detecting failure in the first connection; transmitting, from the mobile station (UE) to a second cell selected by the cell selection process, a connection re-establishment request signal; determining, at the radio base station managing the second cell, whether or not to have stored context information of the mobile station (UE) having transmitted the connection re-establishment request signal; acquiring, at the radio base station managing the second cell, the context information of the mobile station from a radio base station managing the first cell, when the radio base station managing the second cell determines that it does not store the context information of the mobile station (UE).
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: October 22, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Mikio Iwamura, Sadayuki Abeta
  • Patent number: 8565773
    Abstract: A method of enabling a soft handoff in a communication system, wherein the communication system includes a plurality of sectors and each of the plurality of sectors includes at least one base station is disclosed. The method includes: providing at least one mobile station; setting identical resources for serving the mobile station from each of the plurality of base stations in each sector; designating at least a plurality of base stations in at least one sector to participate a soft handoff; and performing a soft handoff.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: October 22, 2013
    Assignee: FutureWei Technologies, Inc.
    Inventors: Anthony C. K. Soong, Yunsong Yang, Jianmin Lu, Jung Woon Lee
  • Patent number: 8559391
    Abstract: This invention relates to an Open Wireless Architecture (OWA) unified airborne and terrestrial communications architecture providing optimal high-speed connections with open radio transmission technologies (RTTs) between aircrafts and ground cells, and between different aircrafts in Ad-Hoc or Mesh network group, to construct the multi-dimensional unified information delivery platform across the airborne networks and the terrestrial networks wherein the same OWA mobile device or OWA mobile computer can be used seamlessly and continuously both in the aircrafts and on the ground.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: October 15, 2013
    Inventors: Wei Lu, David Dexi Lu, Michael Lu, Jianhong Hu
  • Patent number: 8559393
    Abstract: According to one example embodiment, a method may include determining whether each of a plurality of target base stations is capable of providing a fast ranging opportunity to a mobile station served by the serving base station, and, for each of the plurality of target base stations which is capable of providing the fast ranging opportunity to the mobile station, determining an action time after which the target base station can send an uplink map to the mobile station, the uplink map indicating when the mobile station should send a fast ranging request.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: October 15, 2013
    Assignee: Nokia Siemens Networks Oy
    Inventors: Achim Von Brandt, Yi Zhang, Shun Liang Zhang, Wei Hua Zhou
  • Patent number: 8559952
    Abstract: The technology described here allows a cell to change a cell identity without disrupting ongoing communication in that cell. In one non-limiting example embodiment, a cell identity change message is sent by a base station to one or more UEs being served in that base station. That message includes at least a new cell identifier and preferably also includes information indicating when that new cell identifier becomes active. In another non-limiting example embodiment, a cell identity change message is sent by a base station changing its cell identity to one or more neighboring base stations.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: October 15, 2013
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Pål Frenger, Fredrik Gunnarsson, Johan Moe
  • Patent number: 8559396
    Abstract: Methods, apparatus, systems and computer program products are defined that provide multiple bindings in a Mobile Internet Protocol (MIP) network environment. The multiple bindings that are established are independent of one another, such that a forward link binding is decoupled from, or otherwise does not affect, a reverse link binding and vice versa. Multiple reverse link-only bindings may be established within an active route set for an access terminal. Additionally a single primary binding may be established that provides a forward link binding and reverse link binding. At any point in time, the access terminal may maintain only one primary binding.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: October 15, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Fatih Ulupinar, Jun Wang, Peerapol Tinnakornsrisuphap
  • Patent number: 8559942
    Abstract: A location reporting paging communication system comprising space satellites, ground stations and a remote receiving unit adapted to resolve a global position from signals transmitted from a communication transmitter. The subscriber in possession of the remote receiving unit updates the paging network with global positioning information. A caller paging a subscriber in possession of the remote receiving unit may request the global location of the remote receiving unit. The paging network could divulge or block such information from a caller depending on the requirements of the subscriber.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: October 15, 2013
    Inventors: Mundi Fomukong, Denzil Willoughby Chesney
  • Patent number: 8553659
    Abstract: Aspects of a method and system for optimal beamforming in a wireless network are presented. Aspects of the system may include one or more processors for use in a requesting communication device wherein the one or more processors may be operable to request a transmission time slot allocation. A determination may be made by a coordinating communication device as whether to assign a sector transmission time slot and/or beamforming transmission time slot to the requesting communication device based on the transmission time slot allocation request. The one or more processors may be operable to receive the assigned sector transmission time slot and/or beamforming transmission time slot.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: October 8, 2013
    Assignee: Broadcom Corporation
    Inventors: Saishankar Nandagopalan, Christopher Hansen
  • Patent number: 8553612
    Abstract: Wireless transceiver apparatus for operating in a part of the RF spectrum which is shared with a co-located second wireless transceiver apparatus. The first wireless transceiver apparatus includes, a wireless transceiver unit; an arbitration interface for interfacing with an arbitration entity which arbitrates access to the shared part of the RF spectrum between the first wireless transceiver apparatus and the second wireless transceiver apparatus; wherein the arbitration interface is adapted to signal time periods when the wireless transceiver unit is operational, or requests to be operational; and wherein the arbitration interface is adapted to signal data about and commands to the arbitration entity during other time periods. An enhanced arbitration entity is adapted to automatically detect and switch between two modes of interference reduction, e.g. a first interference reduction means such as AFR, a second interference reduction means such as PTA.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: October 8, 2013
    Assignee: ST-Ericsson SA
    Inventors: Rudolph Alexandre, Wouter Aerts, Martin Ryder, Viktor Belokonskiy
  • Patent number: 8547933
    Abstract: A method for performing handover in a dual-mode terminal is disclosed. The method for performing handover in a dual-mode terminal includes receiving an Internet Protocol (IP) packet from a personal computer (PC), and transmitting the received IP packet to a serving network; upon receiving a handover message from the serving network, stopping reception of the IP packet from the PC; forwarding residual packets from a first processor corresponding to the serving network to a second processor corresponding to a target network; upon handover completion and completion of the forwarding of the residual packets, restarting reception of the IP packet from the PC; and transmitting the residual packets to the target network.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: October 1, 2013
    Assignee: LG Electronics Inc.
    Inventors: Il Hwan Kim, Jae Cheon Kim, Mun Yong Han
  • Patent number: 8547939
    Abstract: A method of operating a wireless system comprises transmitting wireless signals from a first base station over a first and a second frequency band, transmitting wireless signals from a second base station over the first frequency band, processing loading of the first frequency band of the first base station to determine a user priority between the first and the second frequency band of the first base station, transmitting an indication of the user priority to a plurality of wireless devices, wherein the plurality of wireless devices select between the first and the second frequency band based on the user priority, determining a distance between the first base station and a wireless device utilizing the second frequency band, determining a velocity of the wireless device, and transmitting a message for delivery to the wireless device if the distance exceeds a first threshold or the velocity exceeds a second threshold.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: October 1, 2013
    Assignee: Sprint Communications Company L.P.
    Inventor: Sachin R. Vargantwar
  • Patent number: 8548455
    Abstract: Aspects of a method and system for installation and configuration of a femtocell are provided. In this regard, information for configuring a femtocell to operate in a specified location may be received by the femtocell and may be utilized to configure one or more parameters of the femtocell. Once the femtocell is operational the parameters may be updated and/or optimized based on one or both of characterizations of cellular signals and/or information received from a femtocell registry. In this manner the femtocell may be reconfigured utilizing the updated and/or optimized parameters. The one or more parameters may be configured based on attributes of the location in which the femtocell is to operate. The one or more parameters may be configured based on a location, number, and/or coverage area of other femtocells. The parameters may comprise one or more of: power levels, frequency of operation, and/or antenna beam pattern.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: October 1, 2013
    Assignee: Broadcom Corporation
    Inventors: Mark Kent, Charles Abraham, Xuemin Sherman Chen, Wael William Diab, Vinko Erceg, Victor T. Hou, Jeyhan Karaoguz
  • Patent number: 8548470
    Abstract: A network element is disclosed. The network element has a processor programmed to promote sending an event mechanism to promote a handoff between disparate telecommunications networks. The event mechanism comprises a mobility event comprising a mobility information element and a mobility state element. The mobility information element comprises a type element and a mobility parameters element.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: October 1, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Mark Edward Trayer
  • Patent number: 8548477
    Abstract: A mobile communication method according to the present invention includes the steps: transmitting, from an exchange (MME) to a first radio base station (eNB), a location information reporting instruction which provides an instruction to report location information on a mobile station (UE); reporting, the first radio base station (eNB) to the exchange (MME), the location information on the mobile station (UE), in accordance with the location information reporting instruction; transmitting, the location information reporting instruction to a second radio base station (eNB), in a handover procedure of the mobile station (UE) from the first radio base station (eNB) to the second radio base station (eNB); and reporting, from the second radio base station (eNB) to the exchange (MME), the location information on the mobile station (UE), in accordance with the location information reporting instruction.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: October 1, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Wuri Andarmawanti Hapsari, Minami Ishii, Takehiro Nakamura