Patents Assigned to IPWireless, Inc.
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Publication number: 20090036083Abstract: A communication unit comprises a receiver for receiving a composite communication signal that comprises a desired signal and at least one asynchronously received interfering signal. The receiver comprises detector logic arranged to detect and process the composite communication signal as if the at least one asynchronously received interfering signal were synchronously received with the desired signal.Type: ApplicationFiled: August 2, 2007Publication date: February 5, 2009Applicant: IPWireless, Inc.Inventor: Peter B. Darwood
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Patent number: 7480261Abstract: A system and method for physical shared channel allocation in a UMTS wireless communication system. A physical shared channel allocation message (220) is sent containing a plurality of occurrences of allocated physical resources and TFCS IDs; and, at a radio unit (130A), the sent physical shared channel allocation message is received and the plurality of occurrences of allocated physical resources and TFCS IDs contained therein are processed, thereby allowing a plurality of CCTrCHs to be allocated with a single physical shared channel allocation message (220). This provides the advantage that, using only a limited set of defined transport format combinations, a large portion of the physical resource can be allocated and used by a single UE using a single physical shared channel allocation message.Type: GrantFiled: July 5, 2002Date of Patent: January 20, 2009Assignee: Ipwireless, Inc.Inventor: Timothy James Speight
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Patent number: 7480276Abstract: A method and apparatus (300) for processing data in a communication system (400), using a configuration header (310) containing configuration data for use in processing data through a plurality of processes including a first process and a second process and passing the configuration header (310) with inter-process data (320) form the first process to the second process, whereby the second process extracts configuration data from the configuration header passed from the first process.Type: GrantFiled: December 4, 2002Date of Patent: January 20, 2009Assignee: IPWireless, Inc.Inventor: Joseph Keith Charles Moloney
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Publication number: 20080318578Abstract: A method for handover of a wireless subscriber communication unit from a first base station to a second base station in a wireless network is described. The method comprises at the wireless subscriber communication unit receiving a handover command message from the first base station. At the first base station, the method comprises sending a scheduling request message to the second base station, in response to an acknowledgement message sent from the wireless subscriber communication unit. The method further comprises, at the second base station, scheduling, in response to the scheduling request message, at least one uplink scheduling resource (UL-SCH) for the wireless subscriber communication unit to transmit a handover (HO) confirmation message to the second base station; and receiving a handover confirmation message from the wireless subscriber communication unit on the at least one uplink scheduling resource (UL-SCH).Type: ApplicationFiled: June 21, 2007Publication date: December 25, 2008Applicant: IPWireless, Inc.Inventor: Chandrika K. Worrall
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Publication number: 20080287057Abstract: A method of providing multimedia broadcast multicast services (MBMS) over a communication system that comprises a shared network and a proprietary network comprises allocating a first portion of logic elements of a broadcast multicast service centre (BM-SC) to support MBMS content delivery over the shared network and allocating a second portion of logic elements of the BM-SC to support MBMS content delivery over the proprietary network.Type: ApplicationFiled: May 15, 2007Publication date: November 20, 2008Applicant: IPWireless, Inc.Inventor: Haris Zisimopoulos
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Publication number: 20080267148Abstract: A communication unit comprises a receiver for receiving a message sent on an allocation channel, packet identifying logic, capable of identifying a data type of the received message, operably coupled to buffer logic for buffering data packets to be sent to the second communication unit. In an active mode of operation, the receiver of the communication unit is capable of intermittently receiving the message sent on the allocation channel and transition to continuously receive the message sent on the allocation channel in response to either: the buffer logic identifying that data packets are to be transferred to the second communication unit; or the packet identifying logic receiving a communication resource allocation message and identifying resource allocation data therein.Type: ApplicationFiled: April 25, 2007Publication date: October 30, 2008Applicant: IPWireless, Inc.Inventor: Timothy J. Speight
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Publication number: 20080267135Abstract: A method for generating a high speed downlink packet access (HSDPA) communication comprises concatenating multiple data packets and attaching a header to the concatenated multiple data packets to form an extended multiplexed data packet. The header comprises an indication of a size of each of the multiple data packets. The extended multiplexed data packet is then transmitted to a remote station on a downlink channel.Type: ApplicationFiled: April 27, 2007Publication date: October 30, 2008Applicant: IPWireless, Inc.Inventor: Peter Jonathon Legg
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METHOD, COMMUNICATION SYSTEM AND COMMUNICATION UNIT FOR SYNCHRONISATION FOR MULTI-RATE COMMUNICATION
Publication number: 20080225890Abstract: Methods and systems for determining operating bandwidth in a multi-bandwidth communication system are provided. Determining operating bandwidth in a multi-bandwidth communication system includes receiving a signal having a first signal portion at a first, predetermined bandwidth. The signal contains an indication of an operating bandwidth selected from a plurality of bandwidths used for a further signal portion. The indication is recovered from the first signal portion at the predetermined bandwidth. The information is recovered from the further signal portion at the operating bandwidth indicated by the indication.Type: ApplicationFiled: February 19, 2008Publication date: September 18, 2008Applicant: IPWIRELESS, INC.Inventor: Paul HOWARD -
Publication number: 20080207212Abstract: A method for obtaining access to a physical uplink shared channel by a mobile station is provided. The method includes transmitting, by a mobile station, a physical uplink shared channel capacity request over the uplink dedicated channel to a base station. The method further includes receiving a physical uplink shared channel allocation. The physical uplink shared channel allocation is determined at a base station in response to the physical uplink shared channel capacity request. In some embodiments, the physical uplink shared channel allocation is received over a downlink common channel. The method may also further include accepting an assignment of the uplink dedicated channel.Type: ApplicationFiled: January 18, 2008Publication date: August 28, 2008Applicant: IPWIRELESS, INC.Inventor: Timothy James SPEIGHT
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Patent number: 7415083Abstract: Automatic gain control (AGC) and synchronisation acquisition by a communication unit in a wireless communication system, e.g. a Universal Mobile Telecommunication System (UMTS) system, is described. AGC is performed using a downlink beacon function, for example a power level (Pbeacon) . Amplitude-equalising (limiting) is performed as part of synchronisation acquisition. Separate AGC processes are used for different stages of synchronisation acquisition. One AGC process uses a peak power (P(k)) of a received signal over a frame. Another AGC process uses a peak power (P(k)) of a received signal over only a portion of a frame, the portion comprising an initial synchronisation code. Another AGC process uses measurements of a received signal (P0(k)) taken in a downlink beacon timeslot. These processes tend to provide tolerance to a varying number of codes (M) transmitted on a timeslot-by-timeslot basis and robust initial synchronisation in the presence of strong uplink interference.Type: GrantFiled: July 29, 2002Date of Patent: August 19, 2008Assignee: IpWireless, Inc.Inventor: Nicholas Anderson
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Patent number: 7412252Abstract: A system, transmitter, receiver and method for communication power control by the transmitting entity (150A) keeping a sequence number counter (200) per UE (130A) that is incremented whenever a common channel transmission is made specifically to that UE, the value of the counter is signalled inside the message itself (or possibly by other signalling means) across the Uu interface, when the intended recipient UE correctly decodes a message, it also decodes the counter value, it compares this counter value with the last correctly received sequence number, which it holds in a memory (300), and deduces whether there are any missing sequence numbers, and accordingly effects transmission power control, this provides the advantage that the transmitting entity is able to provide information to the receiving entity that enables a correct recipient-specific error statistic to be generated, when applied to 3GPP release 5 HS-SCCH for TDD, this technique is able to assist the UE in calculating a correct error statistic foType: GrantFiled: May 15, 2003Date of Patent: August 12, 2008Assignee: IPWireless, Inc.Inventor: Nicholas William Anderson
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Publication number: 20080188247Abstract: Paging group identifiers are associated with groups of user equipment (UEs) in a hierarchical manner. A controller, such as a scheduler in an enhanced Node B, may address the groups of UEs using group identifiers over control channels. The controller may select a group identifier for a group of UEs from higher or lower levels of the hierarchy, depending upon the number of UEs to be paged and/or the number of available control channels over which paging resources are dynamically allocated to the UEs. UEs within the addressed groups monitor the corresponding paging channels for paging messages.Type: ApplicationFiled: February 2, 2007Publication date: August 7, 2008Applicant: IPWireless, Inc.Inventor: Chandrika K. Worrall
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Publication number: 20080165679Abstract: A method is provided for mapping between an uplink traffic characteristic and a transmission prioritization level to prevent fraudulent access to priority flows at a centralized point in a network. According to certain embodiments, an Access Gateway (AGW) receives at least one network filter parameter from a network element, which indicates expected priorities. The User Equipment (UE) transmits a message over a traffic flow to an Access Point (AP), including an indicator of the actual priority at the AP. The message is forwarded to an AGW. The actual priority is determined at the user equipment according to a message characteristic and an uplink filter parameter, which is associated with the traffic flow that was used for transmission. Access to priority flows is determined based on comparing the expected priority and the actual priority of the message.Type: ApplicationFiled: January 10, 2007Publication date: July 10, 2008Applicant: IPWireless, Inc.Inventors: Nicholas W. Anderson, Haris Zisimopoulos
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Publication number: 20080159185Abstract: Active control feedback between a base station and user equipment in a wireless communications network is achieved by allocating a first time slot within a frame for a UE to transmit a beacon signal to the base station, where the beacon signal is separate from data signals in the frame, allocating a second time slot within the frame for the base station to transmit a control signal in response to the beacon signal, and allocating other timeslots for the base station to operate in full duplex FDD mode. The control signal provides a basis upon which the UE adjusts a transmission parameter, such as power.Type: ApplicationFiled: December 27, 2006Publication date: July 3, 2008Applicant: IPWireless, Inc.Inventor: Paul Howard
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Publication number: 20080144600Abstract: A cellular communication system comprises a base station (101) and a plurality of user equipment (103). The base station (101) comprises a combine processor (111) which combines user equipment specific information, such as power control commands or synchronisation information, for a plurality of user equipment (103). An encode processor 113 encodes the combined user equipment specific information and a transceiver 109 transmits the combined user equipment specific information in a minimum transmission resource unit of the cellular communication system. The minimum transmission resource unit may be a single channelisation code in a single time slot. The UE (103) comprises a receiver (115) for receiving the minimum transmission resource unit and a UE data processor (117) which decodes the minimum transmission resource unit and extracts the user equipment specific information for that UE (103). The invention may provide a more efficient communication of small data blocks.Type: ApplicationFiled: August 10, 2005Publication date: June 19, 2008Applicant: IPWireless, Inc.Inventor: Nicholas William Anderson
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Patent number: 7385994Abstract: A method of processing queued data packets in a packet data communication system is provided. The method includes allocating a tier of service for substantially each of a plurality of individual packet data queues and determining a total number of data packets that can use an available communication resource. A proportion of a total number of data packets is allocated to a number of the tiers of service to allow individual packet data queues on a number of tiers to share a communication resource. A communication resource is provided to queued packet data users on a tier-by-tier basis, such that the communication resource is made available to substantially all tiers.Type: GrantFiled: October 23, 2002Date of Patent: June 10, 2008Assignee: IPWireless, Inc.Inventor: Timothy James Speight
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Patent number: 7373161Abstract: A method for setting a power control level (600) in a wireless communication system. The method includes the steps of obtaining (620) transmission information from a wireless subscriber unit, and modifying a power control level and/or a communication channel format (660) in response to said transmission information. Preferably, the transmission information is re-transmission requests from a wireless subscriber unit, which are transmitted frequently. In this manner, rapid adjustment of power control can be attained utilising an optimal selection of the available communication channel format, followed by a fine-tuning power control operation.Type: GrantFiled: December 4, 2002Date of Patent: May 13, 2008Assignee: IPWireless, Inc.Inventor: Nicholas William Anderson
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Patent number: 7369601Abstract: Processing of a received code division multiple access, CDMA, burst (405) when a spreading factor of the CDMA burst (405) has been changed from an allocated spreading factor (SF0) to a new spreading factor (SFn). The received burst (405) is processed with a CDMA detector (310), using the allocated spreading factor (SF0), to provide a CDMA detector output; the new spreading factor (SFn) of the burst is determined; and the CDMA detector output is decimated by a factor determined from the new spreading factor (SFn). The decimator may be a FIR decimator (315) and tap weights may be determined using the values of the new spreading factor (SFn) and the allocated spreading factor (SF0). Application in a Node B (150A) of a UMTS system (100), particularly in UTRA TDD mode, for processing received uplink communication is described.Type: GrantFiled: October 24, 2002Date of Patent: May 6, 2008Assignee: IPWireless, Inc.Inventors: Alan Edward Jones, David Trewren
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Patent number: 7366094Abstract: A wireless communication system and method employing channel transport format allocation in a shared uplink channel between a UE and a Node B, and wherein the UE can determine a transport format combination which it can support, by: detecting in the UE a change in transport format combination that the UE can support; and sending to the Node B an indication of transport format combination that the UE can support, whereby efficiency of channel transport format allocation in the system may be improved. A conditional delay mechanism may be employed to reduce signalling overhead. This allows uplink shared channels to be efficiently used by providing a means by which UTRAN (UMTS terrestrial radio access network) is informed of the TFCs within the TFCS which can be used in the uplink by the UE.Type: GrantFiled: July 5, 2002Date of Patent: April 29, 2008Assignee: IPWireless, Inc.Inventor: Timothy James Speight
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Publication number: 20080095081Abstract: Power control in a communication system (100) employing a Downlink Shared Control Channel (DSCH) and a Forward Access Control Channel (FACH) is described. The method includes, applying power control on the Downlink Shared Control Channel; deriving power control information from the power control on the Downlink Shared Control Channel; and applying to the Forward Access Control Channel the derived power control information from the power control on the Downlink Shared Control Channel in order to produce power control on the Forward Access Control Channel. The power control of the Forward Access Control Channel may be implemented by scheduling data in response to the derived power control information.Type: ApplicationFiled: December 15, 2004Publication date: April 24, 2008Applicant: IPWireless, Inc.Inventors: Peter Jonathon Legg, Timothy J. Speight