Abstract: A customer central location (CCL) communicates with multiple remote wireless devices employing mutually incompatible data formats or short message service (SMS) protocols. A communication, from the CCL to a remote device or from a remote device to the CCL, passes through a short message arbitrator (SMA), which determines the identifying characteristic(s) of the device receiving the communication. From the identifying characteristic(s), the short message arbitrator determines the expected data format and the transmission path to the device. The SMA converts the communication into the expected data format and transmits the communication over the appropriate transmission path.

Abstract: A method for communicating packet data units in a radio communication system having a first base station that supports both speech and data packet communication with a number a radio units, wherein the first base station includes a first transceiver unit communicating a speech call with a first radio unit on a speech traffic channel mapped on a first basic physical channel, and where a discontinuous transmission mode can be activated on the first speech traffic channel, characterized in that the method comprises the step of communicating packet data units between the first transceiver unit and a second radio unit on a packet data channel mapped on a second basic physical channel when the discontinuous transmission mode is activated on the first speech traffic channel.

Abstract: A system and method for wireless communication between a plurality of subscriber units and a base station, the base station communicating information signals from an originating source to a destination subscriber unit over a channel at an assigned one of a plurality of frequencies using repetitive time frames, each said time frame comprising a sequence of time slots. The channel is defined as having the same one or more time slots from the sequence of time slots in one or more of the time frames. The base station includes a central processing unit capable of assigning a duration of time for the information signals being sent to the destination subscriber unit. The duration equals the duration of one or more time slots in the same frame. The central processing unit maintains a memory of which time slots of each time frame have been assigned and provides the time slot assignment, and therefore channel assignment, by consulting said memory.

Abstract: A method and apparatus for transmitting a burst of data over a supplemental channel on just one leg of a handoff by changing the maximum allowed burst duration of the data to be transmitted over the supplemental channel as a function of the future and/or current characteristics of the communication link of the leg(s) of the handoff. The data is then transmitted over just one leg of handoff using the maximum allowed burst duration. By changing the parameters of the data, the data may still be acceptably received at the mobile terminal over just one leg of the soft handoff even when the strength of the pilot signal used for the supplemental channel changes significantly. In an illustrative embodiment of the invention the stability of the communication link is used as a way of ascertaining the future conditions of the communications link.

Abstract: A cell changing method for a packet-mode cellular mobile radio system, in which method information relating to resources allocated to a mobile station in a new cell is signaled by the network to said mobile station when said mobile station is still in the old cell and information intended to enable the mobile station to determine a timing advance to be applied by said mobile station in the new cell is also signaled by the network to said mobile station when said mobile station is still in the old cell.

Abstract: A method to dynamically allocate time slots in multiple channels of a bandwidth over which a device can communicate on the network. In one embodiment, the present invention recites a method comprising several steps. First, a request to log onto a network is received from a device. Then, a loading condition of the network is determined. Finally, specific transmitting channels on which the new device is allocated to transmit information is assigned.

Abstract: The invention relates to a communication system comprising a plurality of interactive terminals which communicate with a master station via a transmission medium. The invention is particularly applied to interactive satellite broadcast systems. The invention relates to a request mechanism permitting the interactive terminals to have reservations assigned to them on the transmission medium for transmitting information to the master station. When a terminal receives assignments that have not yet expired, it temporarily stores them in an assignment memory. The invention comprises taking the number of assignments contained in this memory into account when a new request is transmitted. It thus permits to avoid that requests for the assignments that have already been granted are formulated again.

Abstract: An apparatus, method and system are provided for multimedia access network channel management, such as channel management in a hybrid fiber-coaxial cable network, for voice (telephony), video, fax and data transmission. The preferred system embodiment includes a plurality of cable telephony modems (CTMs), for such voice (telephony), video, fax and data transmission, and includes a cable modem termination system (CMTS). For upstream communication from the CTMs to the CMTS, the network provides a plurality of channels, formed by a combination of FDM and TDMA. When a CMTS receives an multimedia network access message having a comparative priority from a CTM, the CMTS determines whether there is a first channel which is available from the plurality of channels, and if so, assigns a first transmission corresponding to the multimedia network access message to the first channel.

Abstract: A protocol for assignment, by an assigning node, of slots for full duplex communication in a dynamic distributed, multi-channel, time division environment is disclosed. The protocol is suitable for use with a dynamic assignment protocol such as USAP. The protocol can identify slots available for allocation for unicast communications or for allocation for broadcast communications. Nodes of the network share communication slot scheduling information. A node having data to communicate can examine the shared information and thereby identify those communication slots that are available for full-duplex communication with a selected neighboring node.

Abstract: To address the need for improved public long code mask (PLCM) management during handoffs, embodiments of the present invention enable a mobile station (MS) (101) to use a different PLCM when communicating with the target base station (BS) (130) than is used when communicating with the serving BS (120). The embodiments provide for signaling between the serving and target BSs, via the mobile switching center (MSC) (115), by which the target BS can provide a new PLCM for communication between the MS and the target BS. By allowing each target BS to allocate and communicate PLCMs for hand-off MSs, today's PLCM sharing, and thus the cross-talk problem, can be avoided.

Abstract: A cordless telephone system is described which is arranged to determine interference strength values during a call connection for one or more channel pairs other than the channel pair momentarily carrying a call connection, such that a group of candidate channel pairs for potential channel switching is performed. Then, if a predetermined channel switching condition is met, then a switching is performed to one of the candidate channel pairs from the group.

Abstract: A multichannel, mixed mode cable modem termination system receiver capable of receiving multiple channels of digital data transmitted on one or more hybrid fiber coaxial cable systems, each the channels being either single mode or mixed-mode. Mixed mode channels are time division multiplexed and have overlapping bandwidth and each sub-channel of a mixed mode channel can have a different center frequency, symbol rate and/or multiplexing type. The receiver is comprised of a plurality of analog front end circuits coupled to the various HFC systems, each selective coupled to any one of a plurality of digital front end receivers. Control circuitry controls these circuits to receive multiple mixed-mode or single mode channels, simultaneously if necessary. An arbiter decides which bursts get processed first in a back end shared demodulator which recovers the data from each burst.

Abstract: A method and apparatus for the receiver directed assignment of receive slots in a dynamic assignment communication system. The apparatus including a memory component storing communication assignment data for a plurality of time slots in a time multiplex structure and a processor component capable of identifying a set of available time slots from the plurality of time slots. The apparatus being capable of assigning itself a receive slot, which can be a broadcast receive slot, from the set of available time slots. The method involves establishing a network wherein network communication is accomplished via assignment of specific time slots of a time multiplex structure. The method further involves determining a set of available time slots suitable for reception, by a receiving node, of a communication from a neighboring node, the receiving node then assigning to itself a receive slot from the set of available time slots.

Abstract: The present invention relates to efficient recovery of High Speed Downlink Packet Access (HSDPA) data following handover. The present invention discloses a method and system for the UE to perform a series of actions in order to reduce the latency and potentially prevent loss of PDU transmission during the serving HS-DSCH cell change procedure. A new criterion is introduced for UE generation of the status report of RLC PDU. The UE generates status report of the PDUs as soon as possible following notification of the HS-DSCH cell change indicated by the RRC procedure to more efficiently recover source Node B buffered data. PDU status may be signaled for each AM RLC instance associated with the HS-DSCH transport channel. Furthermore, upon Inter Node B serving HS-DSCH cell change the SRNC may wait for PDU status report before initiating transmission of new data in target cell.

Abstract: According to the present invention, different frequency reuse patterns are used when scheduling critical and non-critical data transmissions. More specifically, the present invention uses a first reuse pattern for scheduling the transmission of critical data and a second reuse pattern for scheduling the transmission of non-critical data. The invention can be applied to any inbound or outbound time slotted protocol that have message fragments spanning over one or more time slots. The reuse pattern can be varied slot by slot, to use a less aggressive reuse for communicating critical data and a more aggressive reuse for communicating non-critical data. As a result, data can be communicated more reliably and throughput can be increased by protecting critical data transmissions via a less aggressive reuse.

Abstract: To address the need for an apparatus and method for handoff from a cellular wireless network to a non-cellular wireless network (WLAN, e.g.), the present application describes an access gateway (214) and a dual mode mobile station (201) that enable such handoffs. Dual mode MSs can determine when a handoff to a non-cellular network is preferred and request a handin (302) from the non-cellular network. The access gateway provides information to the MS (304) so that it can initiate a handoff through the serving cellular network. Triggering handoffs in this manner, allows cellular networks to handle handoffs to non-cellular networks in much the same way they handle inter-MSC handoffs today, i.e., source initiated.

Abstract: A communications apparatus and a frequency control method thereof, in that control of a reference frequency (local oscillator frequency) is made by feeding back a frequency offset estimate FOS to the voltage-controlled oscillator 103, and the frequency offset between sending and receiving frequencies is corrected by feeding back a frequency offset control value FOC which is based on a sending reference frequency command on downstream control data DCD to sending frequency offset control means 118, to control a sending reference frequency by using both a voltage-controlled oscillator 108 (a frequency control step) and sending frequency offset control means 118 (a sending frequency offset control step).

Abstract: This invention relates to a method and apparatus for transferring state information between second generation (2G) and third generation (3G) communication networks. More particularly, the invention is directed to a system for allowing the transfer of mobile state information—such as Mobility Management (MM) information, and Packet Data Protocol (PDP) information, Customized Applications for Mobile Enhanced Logic (CAMEL) information and charging/billing information—between 2G (GPRS—General Packet Radio Service) and 3G (UMTS—Universal Mobile Telecommunication Service) systems.

Abstract: The present invention provides a method of operation for a variable transmission mode multi-carrier communication system by receiving a signal, determining a link quality as a function of the received signal, and selecting a compound multi-carrier communication mode as a function of the link quality.

Abstract: The present invention provides a resource manager that is configured to support bandwidth re-use across the network. Further, the resource manager provides that when two nodes are distant from each other, the transmission of a first node does not cause significant co-channel interference that often hampers the transmissions of the second node. The resource manager further allows the two nodes to re-use the same bandwidth. The resource manager attempts to dynamically manage bandwidth allocations such that frequency re-use is supported and maximized.

Abstract: Local area network bandwidth is partitioned into periodic data frames. Data frames are further segregated into spectrum and time slots. Bandwidth reserved by assigning spectrum and time slots to particular circuit connections; enabling deterministic data transfer from source to destination nodes. Bandwidth reservations are broadcast to nodes attached to network.

Abstract: A microprocessor reads the information such as directions of arrival about a desired wave and an undesired wave for every terminal station and for every hopping frequency, and their receiving powers, and the like, from a desired wave/undesired wave information inputting unit. On the basis of the information items, the microprocessor calculates the weight values of a transmitting section and a receiving section for every terminal station and every hopping frequency, and stores them in a weight value table. At the time of performing radio communication, the microprocessor reads the weight values of the receiving section and the transmitting section corresponding to every terminal station and every hopping frequency from the weight value table every time the frequency is hopped, and sets them in attenuators, and phase shifters. As a result, the optimum directivity pattern is formed for every hopping frequency, and high-quality communication can be thereby achieved.

Abstract: The present invention provides such a need by utilizing a frequency offset differential pulse position modulation scheme to transmit data between computing devices within a wireless network system. The differential pulse position modulation component of the scheme enables the present invention to provide relative immunity to interference for the system. In particular, such immunity from interference is achieved by utilizing a blanking time between pulse positions, which is large enough to allow the interference between frequency offset—differential pulse position modulation pulses to subside. The frequency offset component of the scheme enables the system to utilize multiple frequency channels to enable the system to achieve higher data rates. In particular, by utilizing a time offset between the frequency channels, the blanking time can be reduced, thereby increasing the amount of data that can be transmitted with a set period of time.

Abstract: A method and an apparatus for detecting a frequency correction burst embedded in a signal which includes ordered samples. The method comprises the following: (a) correlating K sequences of the ordered samples with a predetermined waveform to produce K correlation outputs, each of the K correlation outputs corresponding to one of the K sequences, having a magnitude and being associated with an order index, K being an integer, the predetermined waveform corresponding to the frequency correction burst; (b) storing the K correlation outputs in a buffer according to the order indices; and (c) estimating a parameter based on the K correlation outputs, the parameter indicating detection of the frequency correction burst. The estimated parameter includes a frequency error and an ending time of a frequency correction burst. A quality metric associated with each frequency error is also computed.

Abstract: Integrated communications systems having a scalable or upgradable TDM switch fabric (i.e., e.g., TDM-controlling switch/MUX) are disclosed. At a first point in time a system is first sold, installed and utilized with a first TDM capacity, using a first TDM switch/MUX controlling a first set of TDM streams operating at a first frequency. A first set of line and other cards (e.g., DSP resources) are provided to provide or receive the first set of TDM streams. At a second point in time the system is upgraded by installation of a second TDM switch/MUX; the second TDM switch MUX controls the first set of TDM streams operating at the first frequency and also controls a second set of TDM streams operating at second frequency, which is a frequency different and preferably higher as compared to the first frequency.

Abstract: An apparatus and method for providing bandwidth on demand service in a wireless communication system having at least one user station, including a frequency divider for dividing a selected bandwidth into a plurality of frequency subdivisions. Also included is a unit for assigning a first number of frequency subdivisions to the individual user stations having a first total bandwidth, commensurate with the volume of transmission traffic. There also is a unit for changing the first number to a second number having a second total bandwidth commensurate with the change of the volume of transmission traffic.

Abstract: A system and method for combining multiplexing and modulation schemes to deliver high and low bandwidth services over a wireless link. The system includes a base station (BTS) with a transmitter for point to multipoint communications to a plurality of network interface units (NIUs) located at customer locations within a geographic area serviced by the base station. In addition to receiving downstream communication from the BTS, each NIU is equipped to communicate in a point to point manner with the BTS. According to the invention time division multiple access multiplexing (TDMA) and quadrature phase shift key (QPSK) modulation is employed for low bandwidth services and frequency division multiplexing (FDM) and quadrature amplitude modulation (QAM) is used to supply high bandwidth services.

Abstract: The idea of the invention is the allocation of transmission resources in several separate steps. In the first step, the available transmission resources are dynamically divided between the different networks. In the second step, the networks divide the resources that have been allocated for their use among their users by their own channel allocation methods. In one embodiment, a given minimum capacity wherewith the network achieves a predetermined minimum quality of service is permanently allocated to some or all of the networks. As the capacity requirement increases, the necessary amount of additional capacity is allocated to the operator in excess of this minimum capacity. The additional capacity is then allocated either from resources separately reserved for this purpose that are common to the networks, or by borrowing it from capacity that is allocated to another network but falls outside the minimum capacity of said network.

Abstract: A method and apparatus provide for scheduling reverse link transmission for a mobile station in a timely manner. A base station (101) may transmit on a forward link high rate channel and a forward link low rate channel to a mobile station during a common time slot. The high rate and low rate channels may be respectively the F-PDCH and the F-PDCCH. The base station may transmit a reverse link transmission scheduling information on the low rate channel. The mobile station may schedule transmission on the reverse link channel, such as R-SCH, based on the data received on the low rate channel. Since the low rate channel has only scheduling data (16 bits) and the high rate channel may have no data (null data) at all, the base station may decide to transmit the reverse link scheduling information to the mobile station very quickly on the forward link.

Abstract: The present invention relates to efficient recovery of High Speed Downlink Packet Access (HSDPA) data following handover. The present invention discloses a method and system for the UE to perform a serial of actions in order to reduce the latency and potentially prevent loss of PDU transmission during the serving HS-DSCH cell change procedure. A new criterion is introduced for UE generation of the status report of RLC PDU. The UE generates status report of the PDUs as soon as possible following notification of the HS-DSCH cell change indicated by the RRC procedure to more efficiently recover source Node B buffered data. PDU status may be signaled for each AM RLC instance associated with the HS-DSCH transport channel. Furthermore, upon Inter Node B serving HS-DSCH cell change the SRNC may wait for PDU status report before initiating transmission of new data in target cell.

Abstract: Disclosed in the present invention is a method for supporting mobility of a mobile node between subnetworks in a wireless local area network that includes a plurality of subnetworks networked through Internet and assigns a different Internet protocol (IP) address to the plural subnetworks, respectively, the method comprising the steps of: if the mobile node moves arbitrarily to a second subnetwork from a first subnetwork during communication, broadcasting a first message, in which a foreign mobile access server (MAS) of the second subnetwork includes the mobile node's medium access control (MAC) address; acquiring, at a home mobile access server of the first subnetwork, an address of the foreign mobile access server from the first message, and then transmitting a second message including an address of the home mobile access server and an Internet protocol address of the mobile node to the foreign mobile access server in reply to the first message; and routing, at the foreign mobile access server and the home

Abstract: A method and apparatus are disclosed for canceling cross-talk in a frequency-division multiplexed communication system. The disclosed frequency-division multiplexed communication system employs multiple carriers having overlapping channels and provides an improved cross-talk cancellation mechanism to address the resulting interference. Bandwidth compression is achieved using n level amplitude modulation in each frequency band. An FDM receiver is also disclosed that decomposes the received broadband signal into each of its respective frequency bands and returns the signal to baseband in the analog domain. Analog requirements are relaxed by removing cross-talk from adjacent RF channels, from image bands, and minimizing the performance degradation caused by In-phase and Quadrature-phase (I/Q) phase and gain mismatches in modulators and demodulators. The disclosed transmitter or receiver (or both) can be fabricated on a single integrated circuit.

Abstract: Based on the results of the detection of a unique word in a received signal with a unique word detecting portion and the detection of a correct CRC in a received signal with a CRC calculating portion, a microprocessor portion sends a reset signal to a timer portion. The reset signal resets the timer of the timer portion, and causes the timer portion to send a field strength measurement timing signal to a field strength measuring portion. The timer portion then automatically keeps track of the data slot timing and outputs the field strength measurement timing signal at every cycle of desired time-slot. Thus, the reliability of measuring the field strength of received radio wave for the desired station in a time-division multiple access can be improved, even if there is interference from other stations.

Abstract: A telecommunications network having at least one radio network controller, a plurality of base stations and a user terminal. At least one base station is operative to receive from the user terminal data packets having an associated quality of service QoS class. The base station is operative to communicate the data packets to an associated radio network controller in accordance with an internet protocol IP by assigning an internet protocol IP QoS class dependent upon whether soft handover of the user terminal to another base station is occurring and/or QoS class.

Abstract: A context relocation method used for header compression when seamless SRNS relocation is performed in an asynchronous IMT-2000 system transmits respective SN field values of compressor context and decompressor context together with SSR information from a source RNC or a target RNC to a UE when an SRNC, which manages dedicated radio resource assigned to a user equipment, performs SSR, and therefore, transmission efficiency can be improved as well as the UE and the target RNC which became the SRNC after SSR can be synchronized with the contexts of each other after the relocation..

Abstract: A system and method for wireless communication between a plurality of subscriber units and a base station, the base station communicating information signals from an originating source to a destination subscriber unit over a channel at an assigned one of a plurality of frequencies using repetitive time frames, each said time frame comprising a sequence of time slots. The channel is defined as having the same one or more time slots from the sequence of time slots in one or more of the time frames. The base station includes a central processing unit capable of assigning a duration of time for the information signals being sent to the destination subscriber unit. The duration equals the duration of one or more time slots in the same frame. The central processing unit maintains a memory of which time slots of each time frame have been assigned and provides the time slot assignment, and therefore channel assignment, by consulting said memory.

Abstract: A method and system for managing communication resources between nodes in a network, and more particularly to a dynamic distributed multi-channel time division multiple access (TDMA) slot assignment method is presented. The method and apparatus include a set of higher level heuristics that enable the wireless channel access scheme to address predetermined characteristics of the wireless channel access system. These predetermined heuristics include using bootstrap slots, adaptive broadcast cycles, channelized neighborhoods, standby slots, speculation slots, neighbor segregation, hard circuits, and soft circuits.

Abstract: In a messaging system, message traffic is transmitted on one or more traffic channels T1, T2 and the allocation of groups S1, S2 of receivers to the traffic channels T1, T2 is controlled by information transmitted on a bulletin board channel BB. A predetermined number of frames before a change in the traffic channel allocation, a countdown value is transmitted in the relevant traffic channel T1 and the countdown value is decremented in each subsequent frame. Before the countdown value reaches zero, the groups of receivers S1, S2 retune to the bulletin board channel, receive their new channel allocations and retune to the traffic channel indicated for their group. The frame timings of the different traffic channels T1, T2 are staggered to reduce the peak power required to transmit message bursts in these channels.

Abstract: A prefix corresponding to a data block at the head of each of data groups in data of a layer 3 of a received FM multiplex broadcast program and data of a layer 4 of the received FM multiplex broadcast program are stored in first storage means. When a data retention command is entered, the data of the layer 3 is produced on the basis of the prefix and the data of the layer 4 which are stored in the first storage means, and the produced data of the layer 3 is retained in second storage means as versatile recording and reproducing data.

Abstract: An architecture for providing high-speed access over frequency-division multiplexed (FDM) channels allows transmission of ethernet frames and/or other data across a cable transmission network or other form of FDM transport. The architecture involves downstream and upstream FDM multiplexing techniques to allow contemporaneous, parallel communications across a plurality of frequency channels. Furthermore, the architecture allows a central concentrator to support a plurality of remote devices that each have guaranteed bandwidth through connection-oriented allocations of bi-directional data flows. The upstream and downstream bandwidth allocation can support symmetrical bandwidth as well as asymmetrical bandwidth in either direction. The architecture generally can be used to support connection-oriented physical layer connectivity between a remote device and the central concentrator.

Abstract: There is provided a method for performing an inter-packet data service node (PDSN) hard handoff. The method is implemented by setting up a channel link passing through a target base station controller (T-BSC), a source base station controller (S-BSC), a source packet control function (S-PCF) and a source-PDSN (S-PDSN) by establishing a channel link between the S-BSC and the T-BSC via a mobile station center (MSC) in an active packet session mode, performing the hard handoff between the S-BSC, the T-BSC and a mobile station (MS) and transmitting or receiving user packet data exchanged between the MS and the T-BSC through the established channel link to or from the S-PDSN in case the hard handoff is completed.

Abstract: A terminal in a wireless telephone system can efficiently search for available base stations. Communication of user information between a base station and a terminal is intermittently performed in a predetermined time slot period. The transmission and reception of user information at the terminal are stopped at once in a plurality of predetermined time slot periods in such intermittent communication. The cell search for receiving a frequency channel in which control information is transmitted from the base station is performed, so that available base stations are searched. The number of cell search periods can be increased or decreased from time to time.

Abstract: A communication system includes a communication switching office having a transceiver for receiving/transmitting a message from/to a data terminal using a communication system, and a management system including a central controller receiving/transmitting the message from/to the communication switching office. The central controller is responsive to the message received from the data terminal, and receives data in the message received from the data terminal. The data terminal transmits to the management system on a message channel. The message channel includes multiple messages from multiple data terminals. The management system receives the multiple messages per message channel or TDM group, and allocates message channel bandwidth for each of the multiple messages to the data terminal responsive to the data terminal call request received on the signalling channel.

Abstract: A method is disclosed for assigning time slots in a system comprising a plurality of subscriber facilities (NT) connected to a center (HUB) via a common medium, the common medium being divided into a plurality of frequency or wavelength channels which are subdivided into time slots. The center assigns time slots to at least part of the subscriber facilities by specifying one channel and one time-slot number for each assigned time slot. After each time slot used, each subscriber facility involved changes to the next allocated channel. Each subscriber facility involved sends information in the time slot with the next assigned time-slot number. Also disclosed are a system, a center, and a subscriber facility for carrying out this method.

Abstract: The invention relates to the transfer of intersystem connections, wherein the quality of a transfer to a supplying base station in a first radiocommunication system determined at a given moment by a subscriber station is compared to a threshold value. If the value falls below said threshold, a compressed mode is activated and measurements are carried out by the subscriber station in relation to the transfer qualities to neighbouring base stations in a second radiocommunication network. On the basis of said measurements, the subscriber station selects a base station for the transfer of a connection. If the value falls below the second threshold, information sequences in the organization channels of the selected base stations are detected by the subscriber station.

Abstract: A method of supporting reverse channel gating in a BS (Base Station) of a mobile communication system. At a handoff from a first BS to a second BS, the first BS transmits to the second BS information about whether an MS (Mobile Station) transmits data on the channel to the first BS in a reverse gating mode. The second BS determines whether to support the reverse gating mode after the handoff. Then the second BS transmits to the first base station a handoff request acknowledgement message including information whether the second BS supports the reverse gating mode after the handoff.

Abstract: A method of compensating for errors in the measurement of the kinematic properties of an electric power steering motor for an automobile is disclosed. The method comprises generating a set of M-ary signals; measuring the pulse width of the set of M-ary signals; and measuring the time between the edges of the set of M-ary signals. The motor velocity may be directly measured by a tachometer or other such device. The motor position signal can be used to estimate the angular velocity of the motor, by determining the change in angular position of the motor divided by the change in time.

Abstract: A method and system for managing communication resources between nodes in a network, and more particularly to a dynamic distributed multi-channel time division multiple access (TDMA) slot assignment method is presented. The method and apparatus include a set of higher level heuristics that enable the wireless channel access scheme to address predetermined characteristics of the wireless channel access system. These predetermined heuristics include using bootstrap slots, adaptive broadcast cycles, channelized neighborhoods, standby slots, speculation slots, neighbor segregation, hard circuits, and soft circuits.

Abstract: Methods and apparatus for selecting a serving sector in a high rate data (HDR) communication system are disclosed. An exemplary HDR communication system defines a set of data rates, at which a sector of an Access Point may send data packets to an Access Terminal. The sector is selected by the Access Terminal to achieve the highest data throughput while maintaining a targeted packet error rate. The Access Terminal employs various methods to evaluate quality metrics of forward and reverse links from and to different sectors, and uses the quality metrics to select the sector to send data packets to the Access Terminal.

Abstract: A system and method for mapping a combined frequency division duplexing (FDD) Time Division Multiplexing (TDM)/Time Division Multiple Access (TDMA) downlink subframe for use with half-duplex and full-duplex terminals in a communication system. Embodiments of the downlink subframe vary Forward Error Correction (FEC) types for a given modulation scheme as well as support the implementation of a smart antennae at a base station in the communication system. Embodiments of the system are also used in a TDD communication system to support the implementation of smart antennae. A scheduling algorithm allows TDM and TDMA portions of a downlink to efficiently co-exist in the same downlink subframe and simultaneously support full and half-duplex terminals. The algorithm further allows the TDM of multiple terminals in a TDMA burst to minimize the number of map entries in a downlink map.