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| Number | Title | Issue Date |
| 7457265 | Mobility management entity for high data rate wireless communication networks A session controller provides mobility management support in a 1xEVDO wireless communication network, such as one configured in accordance with the TIA/EIA/IS-856 standard. Operating as a logical network entity, the SC maintains location (e.g., a pointing tag) and s... | 11/25/2008 |
| 7433977 | DMAC to handle transfers of unknown lengths A DMA controller maintains a count of data transferred in each DMA operation, and saves the transferred data count at the end of the DMA operation. The DMA controller may then begin a subsequent DMA transfer operation, without waiting for a processor to read the tra... | 10/07/2008 |
| 7414557 | Method and apparatus for feedback signal generation in sigma-delta analog-to-digital converters A method and apparatus taught herein provide a digital-to-analog converter (DAC) for use in a conversion feedback path of a sigma-delta type analog-to-digital converter (ADC). The DAC uses current pulse shaping to generate a conversion feedback signal in each feedba... | 08/19/2008 |
| 7409192 | Method and apparatus for frequency synthesis in direct-conversion transmitters A method and apparatus for direct-conversion transmission generates a first frequency signal that is non-harmonically related to a transmit frequency signal, divides the first frequency signal to obtain a mixing frequency signal, divides the first frequency signal t... | 08/05/2008 |
| 7406077 | Generalized rate control for a wireless communications network An apparatus and method provide MAC logic enabling the use of two or more reverse link rate controls at the same time in one or more sectors of a radio base station. That enables the base station to control reverse link loading via reverse link rate control, while a... | 07/29/2008 |
| 7403505 | Resource granting in multi-carrier CDMA systems In one embodiment, a multi-carrier CDMA network grants radio link resources to a mobile station by maximizing soft handoff conditions, by preserving frequency continuity with the mobile station, or by load balancing across carrier frequencies in two or more cells, o... | 07/22/2008 |
| 7400889 | Scalable quality broadcast service in a mobile wireless communication network The quality of a broadcast stream is varied responsive to changes in the utilization of forward link air interface resources. The network monitors utilization of forward link air interface resources and dynamically changes the forward link air interface resources de... | 07/15/2008 |
| 7397842 | Method and apparatus for combining weight computation in a DS-CDMA RAKE receiver A RAKE receiver circuit generates combining weights based on channel estimates and combining statistics that comprise channel coefficient statistics, noise statistics, and channel estimation error statistics. Together, these statistics incorporate the relationships ... | 07/08/2008 |
| 7382292 | Method and apparatus for efficient signal interpolation In one or more embodiments, an over-sampling method and corresponding over-sampling circuit efficiently generate an over-sampled signal by determining sampling phases in the over-sampled signal that are unused by downstream processing of the over-sampled signal, and... | 06/03/2008 |
| 7379440 | System and method for reducing setup latency in one or more service instances Call setup latency for a packet data call dormant reactivation is reduced by bypassing service negotiation and/or RLP Sync exchange procedures using values stored at the BSC. Previously negotiated parameters may be used to bypass service negotiation. A non-zero RTT ... | 05/27/2008 |
| 7379738 | Information service broadcast control in a wireless communication network A wireless communication network limits the service areas within the network by transmitting time registration flag information in each of a plurality of network service areas. The flag information indicates whether registration for a given broadcast service current... | 05/27/2008 |
| 7376102 | Erased frame and idle frame suppression in a wireless communications system A method of reducing loading on backhaul communications links in a wireless communications system suppresses a portion of the upward flow of frame information for idle and/or erased frames in certain situations, such as when multiple ones of such frames are successi... | 05/20/2008 |
| 7359680 | Delay calibration in polar modulation transmitters A method and apparatus for dynamically compensating for delay mismatch between a supply signal and an input signal of a power amplifier in polar modulation transmitters. One exemplary polar modulation transmitter according to the present invention comprises a power ... | 04/15/2008 |
| 7357309 | EMV transactions in mobile terminals A mobile terminal is enabled to conduct an EMV transaction. A wireless access node in the EMV card-reader terminal is provided for connecting a mobile terminal to the card-reader terminal. An EMV-proxy module executing in the card-reader terminal facilitates communi... | 04/15/2008 |
| 7359354 | Method and apparatus to reduce packet data link renegotiations in a wireless mobile network A wireless communication network updates packet zone tracking variables for mobile stations having packet data connections with the network in a manner consistent with that used by the mobile stations for their locally stored packet zone tracking variables. The netw... | 04/15/2008 |
| 7356312 | Fractional frequency synthesizer A frequency synthesizer circuit generates an output clock signal having a desired frequency relationship with an input reference signal, and offers essentially arbitrary relational values and adjustment resolution within any applicable circuit limits. The frequency ... | 04/08/2008 |
| 7349501 | Method and apparatus for automatic gain control of a wireless receiver A method and apparatus for automatic gain control of a receiver provides compensation of gain control operations for received signal disruptions. In one embodiment, an automatic gain control circuit remembers control state information from a time just before a given... | 03/25/2008 |
| 7346352 | Method of synchronizing broadcast parameters to support autonomous soft handoff by mobile stations A method of coordinating broadcast parameter settings enables autonomous soft handoff by a mobile station. Any base station can initiate a broadcast parameter coordination process. The initiating base station assumes the role of an arbitrator and is responsible for ... | 03/18/2008 |
| 7346314 | Forward link transmit power control based on observed command response A method and apparatus to provide a deterministic power control mechanism for the transmission of mobile station power control commands based on transmitting non-power control commands for which mobile stations exhibit deterministic, observable responses at related ... | 03/18/2008 |
| 7346011 | Scheduling calls based on frame-offset selection A wireless communication network has radio resources for use to support calls over circuit switched (CS) and packet switched (PS) channels. The network uses such radio resources to first support CS calls and thereafter uses the leftover radio resources to support PS... | 03/18/2008 |
| 7339980 | Successive interference cancellation in a generalized RAKE receiver architecture A receiver includes a receiver circuit that decodes multiple signals of interest contained in a composite received signal. The receiver comprises a plurality of successive signal detection stages to detect respective signals contained in the composite received signa... | 03/04/2008 |
| 7340016 | Equalizers for multi-branch receiver A multi-branch receiver comprises a plurality of signal branches including branch filters to filter respective branch input signals and to produce corresponding branch output signals, a combiner to combine the branch output signals to produce a combined baseband sig... | 03/04/2008 |
| 7321571 | In-band wireless communication network backhaul By using allocated spectrum from the mobile station air interface, one or more remote, child access points within a wireless communication network establish backhaul connections to a parent access point having conventional backhaul links to the network. In this mann... | 01/22/2008 |
| 7315578 | Fast soft value computation methods for gray-mapped QAM A method and apparatus use unified equations to provide computationally efficient but exact solutions to bit soft value computations for Gray-coded QAM symbols in a received communication symbol as compared to carrying out region-specific equations that are keyed to... | 01/01/2008 |
| 7313167 | Signal-to-noise ratio estimation of CDMA signals An improved approach to noise estimation permits, for example, tighter closed-loop power control in a wireless communication network with attendant improvements in transmit power efficiency and network capacity. In an exemplary embodiment, the received signal-to-noi... | 12/25/2007 |
| 7308019 | System and method for Fast Walsh Transform processing in a multi-coded signal environment A flexible Fast Walsh Transform circuit provides configurable FWT sizes, and is suitable for use in radio receivers where the received signal may be generated using varying spreading codes and/or varying numbers of multi-codes. Such signal types are commonly encount... | 12/11/2007 |
| 7301404 | Method and apparatus for transceiver frequency synthesis A method and apparatus for frequency synthesis in a transceiver are based on providing a primary frequency synthesizer configured to synthesize a receiver frequency signal from a receiver reference frequency signal, and providing an offset frequency synthesizer conf... | 11/27/2007 |
| 7299402 | Power control for reverse packet data channel in CDMA systems A method of reverse link power control for a reverse packet data channel in a wireless communication system allows a mobile station to autonomously change its data transmission rate. The mobile station transmits packet data over a reverse packet data channel having ... | 11/20/2007 |
| 7289480 | Applications based radio resource management in a wireless communication network A wireless communication network manages communication resources based on the types of packet data being carried by the network for each mobile station. Packet data for each use is matched to packet matching filters in defined flow type profiles. Each flow type prof... | 10/30/2007 |
| 7284185 | Puncturing/depuncturing using compressed differential puncturing pattern Differential puncture patterns are used for puncturing and de-puncturing codewords transmitted over a communication channel. The puncture pattern comprises a series of successive differential indices or offsets corresponding to differences between successive bit ind... | 10/16/2007 |
| 7271665 | Method and apparatus for transceiver frequency synthesis A method and apparatus for frequency synthesis in a transceiver are based on providing a primary frequency synthesizer configured to synthesize a receiver frequency signal from a receiver reference frequency signal, and providing an offset frequency synthesizer conf... | 09/18/2007 |
| 7269205 | Method and apparatus for signal demodulation An exemplary receiver demodulates an amplitude modulated data signal received in association with a reference signal, wherein a transmit power of the data signal is unknown to the receiver circuit, by determining a scaling factor based on the reference and data sign... | 09/11/2007 |
| 7269181 | Robust radio base station controller architecture A base station controller system comprises a high data rate distributed switching fabric providing flexible access to call processing resource pools. The arrangement permits a system controller to selectively assign specific resources depending on call type based on... | 09/11/2007 |
| 7266354 | Reducing the peak-to-average power ratio of a communication signal Systems and methods are provided for reducing the peak to average ratio of signals, so that the signals can be amplified more efficiently. An error signal that corresponds to crests of the input signal is generated, and subtracted from the input signal. When a crest... | 09/04/2007 |
| 7248874 | Mobile assisted handover using CDMA A mobile station assists the wireless network with handover from a first base station to a second base station. The mobile station receives transmissions from the first base station using a first spreading code corresponding to the first base station while receiving... | 07/24/2007 |
| 7242914 | Method of automatic gain control for multiple receiver front-ends A gain processor circuit calculates a first AGC signal for a first one of a number of receive chains, each including a gain-controlled front-end circuit, and derives one or more additional AGC signals from the calculation of that first AGC signal for any remaining c... | 07/10/2007 |
| 7224942 | Communications system employing non-polluting pilot codes Transmitting non-polluting dummy pilot signals in a wireless communication network permits estimation of the downlink propagation channels between a number of joint transmitters and a lesser number of receivers. With fewer receivers than transmitters, loop back info... | 05/29/2007 |
| 7221653 | Fast flow control methods for communication networks Reverse link flow control in a high data rate network determines current reverse link data channel rates for access terminals served by a network sector to identify corresponding defined channel gains, which are used to rapidly and reliably estimate total sector int... | 05/22/2007 |
| 7212820 | Mobile assisted handover using CDMA A method and system for facilitating handover in mobile radio communication systems are illustrated. The mobile unit assists in making handover decisions by monitoring the signal strength of control channels transmitted by base stations in neighboring cells. During ... | 05/01/2007 |
| 7209741 | Method of acquiring a mobile station identifier in a hybrid network An access network obtains a non-native mobile station identifier, such as an International Mobile Station Identifier, for use in establishing a packet data call by inducing the mobile station to transmit a non-native message containing the mobile station identifier ... | 04/24/2007 |
