Hybrid Allocation Patents (Class 455/451)
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Methods and apparatus for the communication of network capability information over a traffic channel
Patent number: 7796557Abstract: In one illustrative example, when a mobile station operative for communications in a wireless communication network is engaged in a call, an in-traffic channel message is transmitted from a base station to the mobile station. The message includes information indicative of whether the wireless network supports a predetermined concurrent service or feature. The predetermined concurrent service or feature may be a mobile-requested Quality of Service (QoS) parameter usage feature or a mobile-initiated position location determination feature. The in-traffic channel message may be an in-traffic system parameter message, a general handoff direction message, or a universal handoff direction message, as examples. Preferably, the wireless network is a cdma2000-type network. Since the mobile station is made aware of such information, more efficient operation may be realized.Type: GrantFiled: January 5, 2005Date of Patent: September 14, 2010Assignee: Research In Motion LimitedInventors: Hao Xue, William Daniel Willey, Muhammad Khaledul Islam -
Patent number: 7796575Abstract: An orthogonal code including an orthogonal code set capable of a plurality of parallel processes through a cyclic shift method is provided. Moreover, a multiple access method of effectively using a new cyclic orthogonal complementary code (cyclic-OC) is provided.Type: GrantFiled: May 23, 2006Date of Patent: September 14, 2010Inventors: Jae Sung Lim, Hyung Won Park
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Patent number: 7792533Abstract: A cellular communication system comprises a set of base stations (201,203) which transmit downlink resource exchange discovery messages to remote terminals in resource allocations of a Media Access Control, MAC, frame structure. The discovery messages may indicate that a base station has resource available for reallocation to another base station or that a base station is seeking resource to be allocated from another base station. A remote terminal (205) comprises a receiver (401, 403) which receives a first message of the downlink resource exchange discovery messages from at least a first base station (201). A discovery message transmit processor (407) generates a second message, which is an uplink resource exchange message comprising resource exchange data determined from the first message, and transmits this to a second base station (203). The second base station (203) then initiates a temporary air interface resource reallocation with the first base station in response to receiving the second message.Type: GrantFiled: April 19, 2007Date of Patent: September 7, 2010Assignee: Motorola, Inc.Inventors: David Grandblaise, Remy Pintenet
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Patent number: 7787434Abstract: The present invention provides a method (100), access point (20) and program product (35) for providing airtime and bandwidth fairness in wireless networks. To provide bandwidth fairness, a more fragment bit is set in a set of packets (46C) received by an access point (20) so that the packets of the set of packets (46C) can be transmitted to its destination (46C) successively (i.e., without back-off). To provide airtime fairness, upon receiving a packet (34) destined for a wireless station (22A), the access point (20) will calculate an airtime requirement for transmitting the packet (34), set a time counter (50) based on the airtime requirement. Thereafter, it will be determined whether the packet (34) can be transmitted to wireless station 22A before the time counter (50) expires. If not, transmission of the packet (34) will either not occur, or the packet (34) will be split into a set of fragments (48) for transmission.Type: GrantFiled: July 29, 2004Date of Patent: August 31, 2010Assignee: Koninklijke Philips Electronics N.V.Inventor: Sai Shankar Nandagopalan
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Patent number: 7783292Abstract: Apparatus, methods and computer program products are provided that enable enhanced resource allocation for a wireless mesh network. A method includes: in response to receiving a resource request in a wireless mesh network, allocating, by a first node, at least one dedicated resource for communication with a second node; reserving at least one shared resource for use in conjunction with communications with the first node; and transmitting to the second node information corresponding to the allocated at least one dedicated resource and the reserved at least one shared resource.Type: GrantFiled: January 31, 2007Date of Patent: August 24, 2010Assignee: Nokia CorporationInventor: Chao Wei
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Patent number: 7773635Abstract: Resources of two frequency division duplex (FDD) frequency bands at a distance from each other are allocated for transmissions by a time division duplex (TDD) transmission method. The resources in the first FDD frequency band are allocated for FDD transmissions in the uplink and for TDD transmissions predominantly in the uplink as the primary transmission direction, and in a secondary manner in the downlink as the secondary transmission direction. The resources in the second FDD frequency band are allocated for FDD transmissions in the downlink and for TDD transmissions predominantly in the downlink as the primary transmission direction and in a secondary manner in the uplink as the secondary transmission direction. No resources are allocated for time periods of an allocation of resources for one of the secondary transmission directions in the first and second frequency bands, for FDD transmissions in the counter transmission direction to this secondary transmission direction.Type: GrantFiled: December 15, 2006Date of Patent: August 10, 2010Assignee: Nokia Siemens Networks GmbH & Co. KGInventors: Josef Martin Eichinger, Matthias Lott, Egon Schulz, Wolfgang Zirwas
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Patent number: 7773997Abstract: A system and method for controlling Quality of Service (QoS) in a wireless network on a per-user basis. According to the preferred embodiment, each user will have a QoS profile, listing the levels of service he is authorized to receive. The RAN assigns radio and network resources for the user, based on the applications that the user is running and the user's profile. A QoS server in the base station controller manages user QoS. When the base station controller receives a packet data call from a mobile station, the QoS profile and the application type that the mobile station is executing will be used to determine QoS parameters for the user's call.Type: GrantFiled: July 16, 2003Date of Patent: August 10, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: William J. Semper, Purva R. Rajkotia
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Patent number: 7761097Abstract: A method and apparatus of optimizing transitioning between EVDO and CDMA 1X systems in a hybrid access terminal, the method having the steps of: preventing a reconnect data call from being sent from the hybrid access terminal. The preventing step including checking whether a transition between an EVDO and a CDMA 1X system is successful; and if not blocking the data call, and/or checking whether an EVDO received signal strength indication is greater than or equal to a receiver sensitivity on the hybrid access terminal; and if yes, allowing the hybrid access terminal to connect to the EVDO system, and/or delaying a connection timer for connecting to the EVDO system and/or applying fast dormancy to the hybrid access terminal in an EVDO state.Type: GrantFiled: October 31, 2005Date of Patent: July 20, 2010Assignee: Research In Motion LimitedInventors: Shahid Rasul Chaudry, Grace T. Y. Yeung, Asif Hossain, Muhammad Khaledul Islam, Kylie Dawn Pratt
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Patent number: 7760751Abstract: A system and method of downlink resource allocation to both Distributed Resource Channel (DRCH) and Localized Resource Channel (LRCH) users in an Orthogonal Frequency Division Multiple Access (OFDMA) network. A utility function is provided for each LRCH and DRCH user, wherein the utility function is concave and non-decreasing; a resource allocation objective is provided using the utility function of each LRCH and DRCH user; and resources are allocated to the LRCH and DRCH users such that the resource allocation objective is met.Type: GrantFiled: March 27, 2007Date of Patent: July 20, 2010Assignee: FutureWei Technologies, Inc.Inventor: Patrick Hosein
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Patent number: 7756522Abstract: A dynamic traffic control method is disclosed that controls traffic in a radio network system where a radio network controller causes plural radio base stations to change radio outputs. The method comprises a step of measuring a channel utilization rate of each of cells of the radio base stations every predetermined period, a step of predicting whether the rate of a first cell of the cells reaches an implementation level, at which radio output control over the first cell is required, in a next period based on a movement of the rate in the past if the channel utilization rate of the first cell is at a warning level, and a step of reducing the radio output of the first cell and increasing the radio output of a second cell adjacent to the first cell if the rate of the first cell is predicted to reach the implementation level.Type: GrantFiled: August 29, 2003Date of Patent: July 13, 2010Assignee: Fujitsu LimitedInventors: Mitsugi Nomiya, Hiroyasu Taguchi, Kazuyoshi Nakajima, Miya Inami, Yayoi Itoh, Kiyomi Hasesaka, Hiroyuki Sasai
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Patent number: 7756520Abstract: A method and apparatus are provided for selecting an optimum base station for communicating with a terminal in a wireless communication system. A base station controller stores two candidate sets for each terminal within communication range of the base stations controlled by the base station controller. One candidate set lists base stations for which the channel quality of the uplink channel between the base station and the terminal is acceptable for communication. The other candidate set lists base stations for which the channel quality of the downlink channel between is acceptable for communication. This allows the base station controller to take into account the predominant direction of traffic when assigning base stations for communication with the terminal.Type: GrantFiled: October 17, 2001Date of Patent: July 13, 2010Assignee: Nortel Networks LimitedInventors: Bassam M. Hashem, Shalini S. Periyalwar, Yoon Chae Cheong
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Patent number: 7751822Abstract: A frequency reuse scheme that provides high spectral efficiency and reduced interference in areas where cell sites overlap is provided. Three frequencies are allocated per cell site, with each sector employing two frequencies, one frequency being transmitted at a higher power and the second frequency being transmitted at a lower power. The higher power frequency in one sector differs from the higher power frequency employed in the other two sectors, and the lower power frequency used in one sector differs from the lower power frequency used in the other two sectors.Type: GrantFiled: August 11, 2005Date of Patent: July 6, 2010Assignee: Nextel Communications Inc.Inventors: Douglas A. Hyslop, Matthew Starzec, Udit Thakore
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Patent number: 7746840Abstract: In a system for transmitting a plurality of data flows from a mobile station to a base station, combinations of capacities which are given from a radio network controller are optionally or quickly modified in the mobile station to be sent to the base station. The combinations of capacities are divided into a plurality of groups each of which is individually pointed by a sub pointer.Type: GrantFiled: September 29, 2004Date of Patent: June 29, 2010Assignee: NEC CorporationInventor: Jinsock Lee
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Patent number: 7733839Abstract: A system capable of operation with dynamic sockets includes a plurality of communications devices. Each of the plurality of communications devices includes high band channel radio resources capable of communications at 900-2800 MHz and socket radio resources capable of communications at 30-1000 MHz. The high band channel radio resources and the socket radio resources are significantly separated in frequency so that the high band channel radio resources and the socket radio resources are suitable for concurrent operation with no interference and minimal isolation, co-site problems to solve in each of the plurality of communications devices. The plurality of communications devices are connected to a unifying mesh network by the high band channel radio resources. The unifying mesh network is suitable for allowing the plurality of communications devices to communicate with one another.Type: GrantFiled: January 24, 2006Date of Patent: June 8, 2010Assignee: Rockwell Collins, Inc.Inventors: Robert J. Frank, Karl F. Hoech, Gunther B. Frank, Carlos J. Chavez
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Patent number: 7720466Abstract: A communication system includes a transmission unit configured to transmit control information relating to plural radio communication systems to a radio terminal through a dedicated control channel commonly used by the plural radio communication systems and for transmitting the control information relating to the plural radio communication systems.Type: GrantFiled: May 28, 2004Date of Patent: May 18, 2010Assignee: NTT DoCoMo, Inc.Inventors: Shinji Takeda, Toru Otsu
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Patent number: 7720484Abstract: A proxy translator for use in a wireless network. The proxy translator re-transmits forward and reverse channel signals between a base station and mobile stations. The proxy translator comprises a first proxy mobile station that communicate with a base station and a proxy base transceiver subsystem (BTS) that communicates with a first mobile station. The first proxy mobile station receives forward channel signals intended for the first mobile station and transfers them to the proxy BTS for re-transmission to the first mobile station. The proxy BTS receives reverse channel signals from the first mobile station and transfers them to the first proxy mobile station for re-transmission to the base station.Type: GrantFiled: September 2, 2004Date of Patent: May 18, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Deepak R. Parikh, Joseph R. Cleveland, Purva R. Rajkotia
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Patent number: 7715360Abstract: The present invention relates to communicating control information in a mobile communication system, by which new control information can be transmitted more quickly. The present invention comprises transmitting a first data block comprising control information for transmitting first data when no resources for the transmission of the first data are available, receiving second data from an upper layer to be transmitted, wherein the second data has a higher priority than the first data, and transmitting a second data block comprising updated control information for transmitting the first and second data when no resources for the transmission of the first and second data are available.Type: GrantFiled: May 2, 2006Date of Patent: May 11, 2010Assignee: LG Electronics Inc.Inventors: Sung Duck Chun, Young Dae Lee, Myung Cheul Jung
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Patent number: 7701910Abstract: A reference signal including a quality indication is injected into the reverse link signal received at a base station. The transmit power of the reference signal is controlled by the base station through reverse link power control, and the base station estimates the reverse link load from the transmit power of the reference signal. As the load increases, the transmit power must increase to overcome interference. The reference signal may be generated by a signal generator within the base station; by a mobile station hardwired to the base station; or by a mobile station proximate the base station, sending the reference signal over the air interface. The reverse link load may be estimated directly from reference signal transmit power, or from the reference signal transmit power minus a minimum reference signal transmit power in the absence of interference.Type: GrantFiled: November 28, 2005Date of Patent: April 20, 2010Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Young C. Yoon, Reza Shahidi
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Patent number: 7697938Abstract: The present invention provides a method of radio resource allocation. The method comprises associating a plurality of mobile units with a corresponding plurality of scheduling states based on at least one radio resource parameter and at least one rule, associating each mobile unit with one allocation state based on the plurality of scheduling states associated with the mobile units, and allocating radio resource to at least one mobile units based on the allocation states.Type: GrantFiled: July 11, 2006Date of Patent: April 13, 2010Assignee: Alcatel-Lucent USA Inc.Inventors: Jiang Chang, Jun Qiang Liu, Wen Tao Zhang
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Patent number: 7697560Abstract: A base station assigns a most appropriate carrier from wide frequency bands in response to a re-request for channel establishment received from a mobile station, even if a same slot as a slot last assigned is assigned. Furthermore, a frequency management table is managed in which carriers that form a radio channel and are grouped by a specific number thereof so as to be distributed over wide frequency bands. Priorities used to search groups are individually provided for base stations that form a system. This allows neighboring base stations to distribute carriers over the wide frequency bands.Type: GrantFiled: January 30, 2004Date of Patent: April 13, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Takahisa Yamauchi, Genya Kotani, Tetsuya Mishuku
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Patent number: 7697935Abstract: The disclosure relates to transfer of a user equipment from a network to another network. In the method a user equipment communicating with a first network is transferred from the first network to a second network providing resources to a plurality of operators. After initiation of the transfer, an operator is selected for the user equipment amongst the plurality of operators. A controller of the second network is then provided with information regarding the identity of the selected operator, and the user equipment is transferred to the second network. Information regarding the identity of the selected operator is also sent to the user equipment.Type: GrantFiled: August 26, 2005Date of Patent: April 13, 2010Assignee: Nokia CorporationInventors: Olivier Guyot, Tony Hulkkonen
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Patent number: 7688783Abstract: A method and apparatus for mixing Basic Service Set (BSS) and mesh traffic is presented. A same channel or a same radio is shared for mesh traffic and BSS traffic. The sharing of the channel including reserving a channel for BSS traffic by a Mesh Access Point (MAP), the reserving comprising sending a CC-RTS or a CC-CTS addressed to the MAP and/or blocking use of the channel by a BSS stations when the channel is not reserved for BSS traffic, the blocking use of the channel comprising the MAP sending a frame setting a NAV in the BSS. The shared radio is switchable between serving the BSS traffic and serving the mesh traffic.Type: GrantFiled: April 17, 2006Date of Patent: March 30, 2010Assignee: Avaya Inc.Inventor: Mathilde Benveniste
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Patent number: 7684808Abstract: A method and apparatus for assigning channel elements in a radio access network (RAN) based on the type of the communication requiring a channel element. When the RAN receives a request to set up a communication of a particular type with an endpoint in a given wireless coverage area, the RAN responsively determines a proportion of the channel elements that are presently assigned to communications of the particular type. If the proportion does not exceed a predetermined threshold for communications of the particular type, the RAN may assign a channel element to the communication by transmitting the necessary signaling messages to the endpoint, one of which may include an identifier of the assigned channel element. The RAN may then determine and store an indication of the type of the communication being assigned the channel element by correlating signaling messages.Type: GrantFiled: March 8, 2006Date of Patent: March 23, 2010Assignee: Sprint Spectrum L.P.Inventors: Samuel M. Woleben, Scott B. Wilson, Bryan T. Barbee
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Patent number: 7664506Abstract: A communication system includes a plurality of channels, a first service that utilizes at least a first channel for transmission, and a second service that utilizes at least a second channel for transmission. Operating means are provided for operating the first service in connection with the second service, so that the first service can utilize the second channel. Adjusting means are provided for adjusting the utilization of the second channel by the second service at least during the connected operation of the first and the second service. The utilization of a channel whose capacity is essentially dynamically adjustable is facilitated by a service that, according to the pre-defined protocols, is directed to use a channel whose capacity is more statically adjustable.Type: GrantFiled: February 14, 2003Date of Patent: February 16, 2010Assignee: EADS Secure Networks OyInventor: Tero Pesonen
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Patent number: 7656838Abstract: A base station (2a,2b,2c) which can communicate with radio terminals on common and dedicated channels according to specific speeds, is provided with a band-pass which is available according to the use of the common and dedicated channels in order to receive data from a radio terminal on a high-speed uplink channel. An available band-pass is determined in the base station in order to receive the data from at least one radio terminal (1) on at least one high-speed dedicated uplink channel. A first indication relating to the available band-pass is subsequently transmitted on a common downlink channel. At least one second indication relating to a percentage of the available band-pass which should not be exceeded by the radio terminal during a forthcoming transmission on said high-speed dedicated uplink channel is then transmitted independently for each radio terminal.Type: GrantFiled: August 16, 2005Date of Patent: February 2, 2010Assignee: Nortel Networks LimitedInventors: Denis Fauconnier, Sarah Boumendil
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Patent number: 7647053Abstract: An electronic device has first and second wireless transceiver modules using first and second communication protocol, respectively. Both wireless transceiver modules are coupled between an application layer and an at least partially shared physical layer of the electronic device. The second wireless transceiver module is equipped with a controller to avoid interference with external signals on a frequency used by the second communication protocol. To avoid destructive interference in the physical layer resulting from simultaneous communications from or to the first and second wireless transceiver modules, the electronic device further includes a mediator, which is responsive to an enabled communication involving the first wireless transceiver module, and which feeds a blocking signal into the controller to avoid interference between the enabled communication and a transmission of the second wireless transceiver module.Type: GrantFiled: December 5, 2003Date of Patent: January 12, 2010Assignee: Koninklijke Philips Electronics N.V.Inventor: Stephen M. Pitchers
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Patent number: 7643448Abstract: In a flexible layer one (403) of a GERAN transmitter device, a TFCI, which indicates a particular combination of cyclic redundancy check, channel coding and rate matching, is generated by a TFCI generating process (412) using information from the medium access control layer. The TFCI is coded by a coding process (413), and inserted into the data stream by a TFCI insertion process (414). Each code has more bits than the corresponding TFCI, and identifies uniquely the TFCI. The coded TFCI is spread across the pre-interleaved block with portions placed in fixed positions in each burst. Interleaving is then performed by an interleaver (411). The coded TFCI used with a half-rate channel is the central segment of the coded TFCI used in the corresponding full-rate channel. The additional loss is so small as to be insignificant, but the FER performance is significantly improved, compared to using the full-rate codes, as a result of the increased payload of the content data bits.Type: GrantFiled: November 7, 2002Date of Patent: January 5, 2010Assignee: Nokia CorporationInventors: Kent Pedersen, Benoist Sebire
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Patent number: 7640023Abstract: Techniques and systems for server farm load balancing and resource allocation are disclosed. In one embodiment, a method of load balancing can include: arranging servers into service groups; receiving an access request with information related to a differentiation between the service groups; selecting one of the service groups based on a mapping comparison to the information; and selecting one of the servers within the selected service group based on a hardware utilization comparison. The servers can include GPRS (General Packet Radio Service) Gateway Support Node (GGSN) or Remote Authentication Dial In User Service (RADIUS) servers, for example. The information can include an Access Point Name (APN) or Calling Station ID, for example.Type: GrantFiled: May 3, 2006Date of Patent: December 29, 2009Assignee: Cisco Technology, Inc.Inventors: Weimin Ma, Ashish Chandwadkar, Chris O'Rourke, Robert Batz, Kevin Shatzkamer, Anand K. Oswal, Mark Grayson, Jayaraman Iyer
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Patent number: 7639708Abstract: A method for reallocating bandwidth includes assigning a node to a position message slot, running an allocation algorithm, generating a table based on the allocation algorithm, selecting a row of the table, aligning a value of the row with a node identifier; and assigning the node to a mini-slot within the position message slot based on the aligning of the value of the row and the node identifier.Type: GrantFiled: February 5, 2007Date of Patent: December 29, 2009Assignee: Rockwell Collins, Inc.Inventors: Timothy E. Snodgrass, Jeffrey D. Bouis, Alan D. Amis, Fred D. Mabe
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Patent number: 7640021Abstract: A method and apparatus for re-allocating radio resources in a wireless communication system includes observing an original allocation of radio resources within the system. The method collects system statistics over an observation interval, determines an optimal allocation of radio resources based on the observed statistics, and re-allocates the radio resources based on the determination.Type: GrantFiled: December 21, 2005Date of Patent: December 29, 2009Assignee: InterDigital Technology CorporationInventor: Christopher Cave
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Patent number: 7634253Abstract: A method (200) and an apparatus (300) in a wireless portable communication device (102) for maintaining appropriate authentication credentials required for a common data application in a current service network are provided. A method (400) in a wireless communication network (106) for providing current authentication credentials required for the common data application accessible through the wireless communication network (106) is also provided. The wireless portable communication device (102) has default authentication credentials required for the common data application in a default service network (106), receives (204) a data session configuration file including authentication credentials based upon a predetermined condition, prioritizes (206) between the default authentication credentials and the received authentication credentials, and uses (208) the authentication credentials having higher priority for the common data application in the current service network (110).Type: GrantFiled: August 26, 2005Date of Patent: December 15, 2009Assignee: Research In Motion LimitedInventors: Thomas Leonard Trevor Plestid, Allan D. Lewis, Ian M. Patterson
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Patent number: 7633907Abstract: A radio LAN (Local Area Network) system includes an access point and a mobile or a fixed station each having a physical layer implemented by a direct spread spectrum system. The LAN system uses different spread codes, maintains transmission power semi-fixed, and selects a frequency and a frequency band in accordance with the kind and amount of information. A data link layer above each physical layer includes an LLC (Logical Link Control) sublayer and an MAC (Media Access Control) sublayer. The MAC sublayer uses a CDMA (Code Division Multiple Access) system as an access system for thereby implementing a data structure in accordance with the kind and amount of information.Type: GrantFiled: June 5, 2006Date of Patent: December 15, 2009Assignee: Oki Electric Industry Co., Ltd.Inventor: Hiroshi Etoh
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Patent number: 7620022Abstract: A CPU of a TDMA communications apparatus examines whether a slot to be allocated for a next transmission is a first slot (S1). If the slot to be allocated is the first slot, the CPU examines whether there are any slots already allocated by other stations within a Selection Interval SI in a frame in which the next transmission of own station is to be allocated referring to a slot map in a memory and finds out a free slot within Selection Interval SI (S11). Then, the CPU allocates the free slot as a next transmit slot of the own station and sets the slot number of the free slot as the slot number of the next transmit slot (S12). Then, the CPU examines whether a slot adjacent to the next transmit slot of the own station is allocated to any of the other stations (S13).Type: GrantFiled: November 28, 2005Date of Patent: November 17, 2009Assignee: Furuno Electric Company LimitedInventor: Yasushi Hiraoka
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Patent number: 7620028Abstract: A system and method are described for binding together a plurality of wireless data communications channels, whereby an aggregate throughput improvement is realized. A master channel amongst the channels to be bound is compatible with existing standards-based wireless data communications equipment. The master channel serves to perform MAC association and flow control. Aggregate throughput is improved by sending and receiving either multiple sets of separately encoded packets, commonly encoded packets or redundantly encoded packets.Type: GrantFiled: November 6, 2003Date of Patent: November 17, 2009Assignee: Atheros Communications, Inc.Inventors: Paul Husted, William John McFarland, Jeffrey M. Gilbert
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Patent number: 7616606Abstract: A ‘smart’ sub-channel hopping control mechanism executes one or more sub-channel selection discriminators to enable the communications controller of a spectral reuse transceiver to delineate on which of a plurality sub-channels the spectral reuse transceiver may transmit, so as to substantially reduce the likelihood of triggering squelch circuits of silent radios of primary (licensed) channel users.Type: GrantFiled: September 15, 2006Date of Patent: November 10, 2009Assignee: Adapt4, LLCInventors: Edward Carl Gerhardt, Paul G. Greenis, William R. Highsmith
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Patent number: 7616605Abstract: A method for configuring a wireless distribution system is provided. In the method, a target node starts a building procedure and begins to broadcast a building information. A joining node starts a scanning procedure for scanning all channels available and locks one channel used by the target node. The joining node sends a connect request signal and a channel assign request to the target node. The target node selects one link and one channel available for the joining node for communication, and sends a channel reset signal to the joining node. The MAC address of the joining node is added into an internal table of the target node. After the joining node has received the channel reset signal, the MAC address of the target node is stored into an internal table of the joining node, and the designated link channel is configured.Type: GrantFiled: December 27, 2005Date of Patent: November 10, 2009Assignee: Industrial Technology Research InstituteInventors: Chun-Chou Chien, Yi-Zhan Huang, Chin-Ta Lin
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Patent number: 7606574Abstract: A system [100] includes a base station [105] to communicate wireless data with at least one user terminal [125, 130] within a cell serviced by the base station [105]. A central backhaul access point [135] communicates wireless backhaul data with the base station [105]. At least a first portion of the wireless data and a second portion of the wireless backhaul data is communicated via Spatial Division Multiple Access (“SDMA”), and the first portion of the wireless data utilizes at least some same time-frequency resources as the second portion of the wireless backhaul data.Type: GrantFiled: January 12, 2006Date of Patent: October 20, 2009Assignee: Motorola, Inc.Inventors: Brian K. Classon, Michael D. Kotzin, Frederick W. Vook
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Patent number: 7599346Abstract: A modem that provides efficient use of wireless network bandwidth in the presence of multi-user interference and noise comprising a multi-user detection module (115), a data formatting module (120), a control processor (125) and a demultiplexer (135).Type: GrantFiled: June 2, 2003Date of Patent: October 6, 2009Assignee: BAE Systems Information and Electronic Systems Integration Inc.Inventor: Karl D Brommer
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Patent number: 7596114Abstract: Disclosed are a system for transmitting data using a band AMC in a broadband wireless orthogonal frequency multiplexing access system and a method thereof. In a broadband wireless communication system, a method for allocating data bursts to a mobile subscriber station according to channel state in a broadband wireless communication system, the method including transmitting allocation information to the mobile subscriber station, the allocation information including information about a sub frequency band containing the data bursts allocated to the mobile subscriber station and information about the number of band AMC subchannels allocated to the mobile subscriber station in the sub frequency band and receiving the data bursts from the mobile subscriber station according to the allocation information.Type: GrantFiled: March 11, 2005Date of Patent: September 29, 2009Assignee: Samsung Electronics Co., LtdInventors: Jung-Shin Park, Geun-Hwi Lim, Hong-Sung Chang, Jae-Jeong Shim
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Patent number: 7596379Abstract: The present invention concerns a method for maintaining transparent mode radio bearers in a Radio Access Network (RAN) of a third generation mobile telecommunications network. The method relates to managing the radio resources allocated to a user equipment (UE) in said radio access network (RAN). The method generally comprises communicating a message from a radio resource controller (RRC) of the RAN to the UE where said message is arranged to instruct the UE to transition from a dedicated channel connection state to a lower activity connection state and to store in its memory transparent mode (TM) radio bearer (RB) information associated with said dedicated channel connection state. By storing TM RB information associated with the dedicated channel connection state, the UE can be reconfigured to the dedicated channel connection state without the RAN having to perform a radio bearer setup procedure.Type: GrantFiled: August 16, 2004Date of Patent: September 29, 2009Assignee: M-Stack LimitedInventors: Andrew John Farnsworth, Gjalt de Jong
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Patent number: 7590423Abstract: A channel allocation method in a BS that communicates on at least two channels in a wireless communication system is provided. The BS receives information related to the data rates of the available channels from the MSs within its cell area, calculates the variance of the data rates for each channel, arranges the channels according to the variances, and allocates the channels in the arranged order to the MSs to satisfy the required data rates of the traffic for the MSs.Type: GrantFiled: September 7, 2004Date of Patent: September 15, 2009Assignee: Samsung Electronics Co., LtdInventors: Won-Hyoung Park, Sang-Boh Yun, Sung-Hyun Cho
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Patent number: 7586872Abstract: A hierarchical assignment manager (HAM) improves system throughput in a hierarchical overlay network by taking into account the requested data rates in addition to or instead of the velocities of mobile users within the network. The user population is characterized by the statistical description of their user profiles. The entire set of profiles is partitioned along assignment curves into two or more subsets, where each subset corresponds to the assignment to a particular layer of a hierarchical network. The HAM determines assignment curves to optimize the total effective system throughput in a systematic way and can be adapted to time-varying user behavior and profiles. The HAM can be used to decide upon assignment strategies between different layers of an overlay architecture, between different available network technologies, or between competing service providers.Type: GrantFiled: April 11, 2003Date of Patent: September 8, 2009Assignee: Alcatel-Lucent USA Inc.Inventors: Seung-Jae Han, Thierry E. Klein
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Patent number: 7574214Abstract: Briefly, some embodiments of the invention provide devices, systems and methods of wireless multiple access transmission. For example, a method in accordance with an embodiment of the invention may include estimating channel quality values of a set of pilot signals received at different, respective, frequency slots of an uplink channel; and allocating an uplink frequency band for the uplink channel based on the estimated channel quality values.Type: GrantFiled: May 25, 2005Date of Patent: August 11, 2009Assignee: Intel CorporationInventors: Yona Perets, Daniel Yellin, Doron Rainish, Ronen Mayrench, Yakir Ovadia
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Patent number: 7570952Abstract: A central controller (CC) [22] of a wireless Local area network (LAN) [20], in conjunction with an association operation with a mobile terminal [24] and upon receiving from the mobile terminal (MT) a first control signal [CS1] of a sequence of control signals involved in the association operation, pre-reserves a MAC resource for transmission of at least a further control signal in the sequence. The MAC resource for the further control signal is pre-reserved prior to information for the further control signal being stored in a transmission buffer [58] of the mobile terminal. In essence, judging from the nature of the first control signal, the central controller (CC) anticipates eventuality of the further control signal and pre-reserves the MAC resource for the further control signal. The central controller (CC) pre-reserves the MAC resource to avoid transmission of a separate message to request a MAC resource for the further control signal.Type: GrantFiled: September 10, 2001Date of Patent: August 4, 2009Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Fredrik Woxberg, Lorens Almehag, Jan Lindskog
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Patent number: 7565151Abstract: A method and system for assigning unique words in an SDMA (spatial division multiple access) communication system is provided. A network management system logically arranges cell stations into clusters of stations, and monitors for a heavy traffic condition. Responsive to determining that a heavy traffic condition exists, the network management system may 1) redistribute unique words within a single cluster; 2) move one or more cell stations from a busy cluster to a less busy cluster; or 3) create a new cluster, and move cells from one or more busy cluster into the new cluster. In this way, the communication system continually adapts so that more unique words are made available at cell stations having heavier communication demands.Type: GrantFiled: January 23, 2006Date of Patent: July 21, 2009Assignee: Kyocera CorporationInventor: Masato Sano
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Patent number: 7555300Abstract: A personal base station configured to connect to the Internet and establish a small area of wireless coverage including means for controlling interference with neighboring personal base stations using a timeslot management mechanism. Timeslot management mechanisms include timeslot interference detection, timeslot power reduction, timeslot allocation, timeslot offset calibration, and timeslot synchronization management that minimizes the number of frequencies required to control inter-cell interference between neighboring personal base stations.Type: GrantFiled: December 17, 2004Date of Patent: June 30, 2009Assignee: Intel CorporationInventors: Stefan Scheinert, Daniel M. Bender
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Patent number: 7551566Abstract: An apparatus and a method for allocating identifiers (IDs) which differentiate data to be transmitted in a mobile communication system supporting the transmission of packet data. The method is used for allocating identifiers to packet data by a radio network controller (RNC) so as to differentiate packet data in a mobile communication system which includes the RNC and a user equipment (UE), wherein the RNC transmits the packet data to a certain cell through at least two common channels including at least two transport channels and the UE receives the packet data through the transport channel. The method includes the steps of: determining a transport channel for transmitting received packet data; and allocating dedicated identifiers for differentiating the pack data according to the determined transport channels.Type: GrantFiled: October 4, 2004Date of Patent: June 23, 2009Assignee: Samsung Electronics Co., LtdInventors: Soeng-Hun Kim, Kook-Heui Lee, Sung-Ho Choi, Gert Jan Van Lieshout
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Publication number: 20090141689Abstract: Systems and methods are provided for processing wireless signal components for a mobile wireless access broadband service. This can include processes for defining a protocol that controls whether to invoke a tune away component to determine an alternative wireless communications path. This can include defining one or more tune away parameters for the tune away component. The process can then automatically select the alternative wireless communications path based in part on the tune away procedure and at least one of the tune away parameters.Type: ApplicationFiled: February 10, 2009Publication date: June 4, 2009Applicant: QUALCOMM IncorporatedInventors: Nileshkumar J. Parekh, Fatih Ulupinar, Rajat Prakash
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Patent number: 7542441Abstract: A resource allocation method in a multicarrier communication system where a base station allocates resources to a plurality of mobile stations according to feedback channel information from the mobile stations. The base station receives a resource request message from each mobile station and selects a set of mobile stations offering a maximum system gain without overlapped resources at a specific point in time based on the resource request messages from all mobile stations in the system. The requested resources and then allocated to the selected mobile stations.Type: GrantFiled: June 27, 2005Date of Patent: June 2, 2009Assignees: Samsung Electronics Co., Ltd, Seoul National University Industry FoundationInventors: Young-June Choi, Sang-Boh Yun, Won-Hyoung Park, Sae-Woong Bahk, Jong-Tack Kim
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Patent number: 7539160Abstract: A radio access network (RNC) assigns for a real-time media session a real-time access bearer that can be shifted between a dedicated channel state and a common channel state. The assignment is made in response to receiving an access bearer assignment message indicating that the real-time media session requires a real-time access bearer of that type. The media activity of the real-time access bearer is then monitored, and the access bearer shifts to the common channel state upon detecting media inactivity during the dedicated channel state, and shifts to the dedicated channel state upon detecting media activity during the common channel state.Type: GrantFiled: April 20, 2004Date of Patent: May 26, 2009Assignee: Nokia CorporationInventors: Terhi Tuulikki Virtanen, Pekka Marjelund, Petri J. Vuorinen, Jukka K. Jaakkola