Abstract: A radio communication apparatus, base station apparatus and communication terminal apparatus capable of predicting an accurate transmission rate before starting data communications to know download time and the like. In the apparatus, a packet CH demodulation section (103) demodulates received packet data. A pilot CH demodulation section (104) demodulates a received signal of a pilot channel. A reception state measuring section (105) measures the SIR from the received signal of the pilot channel. A transmission rate candidate selecting section (106) stores a calculation expression that associates CQI with SIR, and selects CQI by the calculation expression using the measured SIR. A transmission rate predicting section (108) averages selected CQI for a predetermined time to output a transmission rate prediction value. A transmission rate prediction control section (110) outputs information of the transmission rate prediction value to a display section (111) when detecting a key input.

Abstract: 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 assigning mobile stations to the type of reverse link rate control best suited to their needs. For example, the base station MAC logic may implement both a common rate controller that generates per-sector rate control commands, and a dedicated rate controller that generates per-user rate control commands and assign mobile stations having relatively lax reverse link service needs to the common rate controller, while assigning mobile stations having more demanding reverse link service requirements to the dedicated rate control. More than two rate controls can be implemented, and exemplary choices include per-user, per-sector, per-group, and scheduled rate control in any combination.

Abstract: A time-shared network comprising edge nodes and optical core nodes may be dynamically divided into several embedded networks, each of which covering selected edge nodes. At least one of the edge nodes may host an embedded-network controller operable to form multiple-source flow-rate allocation requests each of the requests specifying flow-rate allocations to a plurality of paths from several source nodes to several sink nodes. A core node may also host an embedded-network controller or several embedded-network controllers. The time-shared network may use both time-division multiplexing and burst switching.

Abstract: A frame forwarding installation on the side of a transmitting terminal refers to a header of a received frame and determines whether a host application is a real-time application. If the application is a real-time application, the received frame is sent to a plurality of paths in the direction of a destination. When a frame received from a path is transmitted to a destination terminal, a frame forwarding installation on the side of the destination terminal stores the identifier of this frame in a storage unit and, if a frame then newly arrives from a path, determines whether the frame identifier of this frame has been stored in the storage unit. If the newly arriving frame has been stored, it is regarded as being a frame already received and is discarded. If the newly arriving frame is not a frame that has already been received, the received frame is transmitted to the destination terminal and the identifier of this frame is stored.

Abstract: A switch apparatus including a load-balance type switch which is configured with a front stage TDM switch, a middle stage switch, and a back stage TDM switch for realizing the switching of the packet signal, accommodating a TDM (Time Division Multiplex) signal and a packet signal, comprising: the front stage TDM switch being shared and used for switching the TDM signal and switching the packet signal, a connection path between an input interface and the front stage TDM switch being shared for a TDM switch connection and a packet switch connection, and the input interface of the TDM signal and the input interface of the packet signal being caused to be exchangeable with each other and configured to be compatible.

Abstract: An object of the present invention is to provide an operation and administration system that allows location of a failure in a network such as an Ethernet network.

Abstract: The method measures the time of arrival at a radiocommunication receiver of a received radio signal originating from a transmitting station. A received signal component is stored in a memory of the receiver. An estimation of the information bits carried by the signal component is obtained through demodulation of the signal component by the receiver. The estimation of the time of arrival of the signal is carried out on the basis of the bits thus estimated and the received signal component.

Abstract: The present invention provides a method for optimizing elastic flows in a multi-path network for a traffic demand by jointly determining a bandwidth for each flow in a set of flows that realize the traffic demand and an optimized path for the traffic demand by maximizing a fairness utility. The present invention can be implemented as a computer program embodied on a computer readable medium in which the functions or steps of the method are implemented as code segments. In addition, the present invention can be implemented as an apparatus that includes a processor and an interface communicably coupling the processor to the multi-path network. The processor jointly determines a bandwidth for each flow in a set of flows that realize the traffic demand and an optimized path for the traffic demand by maximizing a fairness utility.

Abstract: A constant-to-variable cache router is situated between a constant bit-rate network and a variable bit-rate network. A monitor within the variable bit-rate network measures the available bit-rate within the variable bit-rate network and communicates the available bit-rate to the constant-to-variable cache router. When data is received from the constant bit-rate network at the constant-to-variable cache router, the constant-to-variable cache router determines if the available bit-rate is large enough to support the delivery of the data from the constant bit-rate network at the constant bit-rate. If not, then the constant-to-variable cache router caches the data and delivers it at a rate dependent on the available bit-rate of the variable bit-rate network.

Abstract: An aggregation router architecture comprises a plurality of line cards coupled to at least one performance routing engine (PRE) via an interconnect system. The line cards include input cards having input ports coupled to subscribers and at least one trunk card configured to aggregate packets received from the subscriber inputs over at least one output port. The PRE performs packet forwarding and routing operations, along with quality of service functions for the packets received from each input line card over the interconnect system. The interconnect system comprises a plurality of high-speed unidirectional (i.e., point-to-point) links coupling the PRE to each line card. The point-to-point links couple the line cards to a novel logic circuit of the PRE that is configured to interface the line cards to a packet buffer and a forwarding engine of the PRE.

Abstract: A high-speed router and method for operation of the core of such a router are disclosed. The disclosure describes routing packets from core input ports to core output ports by aggregating or queuing packets at router core ingress ports in queues designated for common router core egress ports. A scheduler selects a set of queues, up to one per ingress port, for switching through the router core at each epoch (an epoch is a time slice). When the epoch for a given set of queues arrives, data from each queue is stranded, with one strand sent to each of multiple switch fabric cards. The switch fabric cards operate in parallel to switch the strands from that queue to a common egress port (as configured by the scheduler), where the strands are recombined to reconstruct the original queue data. This architecture can be made fault tolerant, can be made to degrade gracefully when one or more switch fabric cards goes down, and can support increased traffic simply by expanding the number of switch fabric cards.

Abstract: A transmission circuit for realizing a rate adaptation layer of a digital communication system. The transmission circuit includes a processor and a format conversion circuit. The processor is capable of managing transmission rates of input and output digital signals of the digital communication system. The format conversion circuit includes a plurality of input units and output units; each input unit is for receiving a bit according to the input digital signal, and each output unit is for transmitting a bit to form the output signal. Each input unit and output unit are connected by hardware wires to realize data formatting such as bit-reordering, command insertion.

Abstract: The present invention comprises a technique for performing a reassembly assist function that enables a processor to perform packet reassembly in a deterministic manner. The technique employed by the present invention enables a processor to reassemble a packet without having to extend its normal processing time to reassemble a varying number of fragments into a packet. The invention takes advantage of the fact that the reassembly assist can be dedicated exclusively to reassembling a packet from a series of fragments and thereby offloading the reassembly process from the processor.

Abstract: A band control system for a digital subscriber line network in which a first apparatus and a second apparatus situated at a subscriber station and a center, respectively, are interconnected by a cable for interchanging at least a digital data signal with each other. The system may cause one of the first apparatus or the second apparatus to monitor receipt of signals from the other of the first apparatus or the second apparatus; send, based on a result of monitoring, a band variation command to the other apparatus for causing the other apparatus to vary a band by using a frequency band not used for signal transfer; cause the other apparatus to receive the band variation command; and vary the band in accordance with the band variation command.

Abstract: A technique for verifying and reprovisioning an interconnect fabric design using integer programming techniques. Requirements for the interconnect fabric design to be reprovisioned may be referred to as flow requirements. The flow requirements may include, for example, source and terminal nodes for communication flows and communication bandwidth required for the flows. An existing interconnect fabric design specifies an arrangement of elements of the fabric, such as links and interconnect devices. The invention programmatically verifies whether the existing design satisfies the flow requirements using integer programming techniques. If the existing design does not satisfy the flow requirements, the invention may also be used to reprovision the existing design to satisfy the flow requirements.

Abstract: Method and apparatus for controlling transmission power in a closed loop power control system, wherein power control commands are based on the energy of the previous power control commands. In one embodiment, the method compares changes in the received energy of received power control commands against expected changes in those commands based on previously transmitted power control commands, and identifies suspicious responses to said previously transmitted power control commands. Hypothesis testing of the received power control commands is performed accordance any identified suspicious responses.

Abstract: A data flow rate policer enforces data flow policies for a number of data flows using a probabilistic policy enforcement mechanism. The policer includes a memory that stores the state of each data flow in a compact data structure. Additionally, the policer includes one or more policing engines that implement the actual data flow policies based on information derived from the data structures. The policing engines may be implemented in hardware to increase performance.

Abstract: A data stream having a bit rate of R gigabits per second (R=1 or an integer power of 2) is transported over a synchronous network using virtual concatenation. A prescribed number of channels (e.g., 7 for SDH, 21 for SONET) are allocated for transmitting streams of containers over the network. A block of data from the data stream is distributed over a group of containers of several channels. Received containers are stored in a memory until bytes from all containers from one of the blocks have been received. Memory is addressed with an address having a first set of bits determined by a position of the container in the stream of containers and a second set of bits determined from an offset determined by a position of the information in the container added to a base address for a channel from which the container was received.

Abstract: A method and apparatus are provided for sending a data packet through a network. The network has public and private realms separated by an interface device. A client in the private realm performs the method. The method includes determining if a destination address of the data packet corresponds to the private realm or to the public realm and retrieving a source address for the client based on the destination address of the packet. The method also includes assigning a retrieved address to be the source address of the data packet.

Abstract: A network device, which includes a plurality of network ports, a switching unit, a data classification unit, and a rate control unit, is provided. The plurality of network ports is configured to send and receive input data packets. The switching unit is coupled to the plurality of network ports and is configured to switch input data packets from a first port to a second port. The rate control unit is coupled to the switching unit and configured to control a data rate provided to each port of the plurality of network ports. The data classification unit is coupled to the switching unit and to the rate control unit. The data classification unit is configured to classify data packets based on their contents and output a classification to the rate control unit. The rate control unit is configured to perform rate control for input data packets based on the classification of each data packet.

Abstract: A method apparatus for hardware and software co-simulation in ASIC development includes developing hardware and software concurrently and co-simulating the hardware and software therebetween via a network while the hardware and software are being developed. The method and apparatus for hardware and software co-simulation allows the software development and testing of hardware and software to start with the design of hardware so as to reduce an overall system development cycle involving ASICs.

Abstract: A method of handling data packets in a series of network switches is disclosed. An incoming data packet is received at a data port of a first lower capacity switch of the series of network switches and a stack tag is resolved from a header of the incoming data packet. The incoming data packet is forwarded to a first higher capacity switch, on a first stacked connection operating at a first data rate, based on the stack tag. A destination address of said incoming data packet is resolved by the first higher capacity switch and the header of the incoming packet is modified. The incoming data packet is forwarded to a second higher capacity switch, on a second stacked connection operating at a second data rate, based on the resolved destination address, where the header of the incoming data packet is modified and the incoming data packet is forwarded to a second lower capacity switch on a third stacked connection operating at the first data rate.

Abstract: The objective of the present invention is to provide a data transfer control device and electronic equipment that guarantee stable operation even if a reset that clears the node topology information occurs. When a CPU (firmware) of a data transfer control device in accordance with the IEEE 1394 standard issues a data transfer start (or resume) command during a bus reset period, the execution of that command is canceled. The fact that the command has been canceled is informed to the CPU by an interrupt. The command is canceled by using a signal that is active during the bus reset period to mask a signal that goes active when a command is issued. When a pause command is issued, the transfer processing pauses at a previously determined pause location. Transfer data is automatically divided into a series of packets to be transferred continuously by the hardware.

Abstract: A universal electronic switching node serves as an edge node in a high-capacity network with an optical core. The universal edge node may handle a variety of traffic classes and may control traffic admission, connection definition, connection routing and core node configuration. The provided capabilities significantly simplify network operation and control. The universal edge node includes input ports for receiving data streams, output ports for transmitting the data streams though the optical core, a switching fabric for communicating these data streams between input and output ports and a controller for controlling this communicating. In particular, the controller can select a route through the optical core, schedule the communication between input and output ports and adaptively allocate the bitrate of this communication.

Abstract: A point-to-multipoint network interface is provided that is simpler and less costly to implement than conventional Ethernet switches. The interface includes a plurality of downstream transmitters for transmitting data packets to a plurality of end user devices, a plurality of downstream receivers for receiving data packets from the plurality of end user devices, an upstream transmitter and an upstream receiver. A multiplexer within the interface multiplexes data packets received from the end user devices into a stream of data packets for transmission to a higher level node regardless of the destination address of the data packets. Conversely, a demultiplexer within the interface demultiplexes a stream of data packets received from the higher level node into individual data packets for selective transmission to one of the plurality of end user devices. The interface can support asymmetrical transmission rates on the upstream and downstream channels between the interface and the end user devices.

Abstract: A high data rate switch is disclosed. The switch may include fiber optic channels where a plurality of switching elements necessarily operate at a significantly lower data rate providing routing of variable or fixed size data packets from a plurality of source ports to a plurality of destination ports via a single serial link. This is may be provided by storing the high rate data temporarily in memory in each of the source ports and then downloading it at a lower rate in a complete data packet to a designated switching element, almost immediately distributing the next data packet that has been received by the source port to a next switching element. The switching element configuration provides automatic redundancy and a minimum amount of frame overhead while sustaining throughput at the high data rate.

Abstract: A transport interface for time division frames, in particular SDH frames transmitted between telecommunications network nodes according to a specified transport protocol, said nodes comprising first circuit means (SM) for processing said time division frames (TRM, TRM2) according to said specified transport protocol, and second circuit means (FP) apt to exchange second information streams (FDS) with said first circuit means (SM) through said transport interface (STI). According to the invention, said second information streams (FDS), exchanged by the transport interface (STI) with the first circuit means (SM) and with the second circuit means (FP), are simplified with respect to said time division frames (TRM1, TRM2) received from said node, in particular are composed by a data stream (BD, T_BD, R_BD) sent in a co-directional way and by an address information (EAR, T_EAR, R_EAR) sent by the transport interface (STI).

Abstract: A method and system for transmitting at least one client signal within a server signal which has a predetermined transmission bit rate, with the transmission bit rate of the client signal and the transmission bit rate of the server signal being different. To this end, at least one identification number, which indicates the transmission bit rate relationships, is determined for at least one client signal at the transmission end, and the data in the at least one client signal are inserted uniformly into the server signal via sigma-delta modulation and using the determined identification number. The server signal is transmitted with the determined identification number and, at the receiving end, the data in the at least one client signal is determined via sigma-delta modulation and using the transmitted identification number.

Abstract: A method for preventing out-of-ordering of frames in a network switch, wherein the method includes the steps of receiving a first portion of a string of packets from a source port on a first port, transferring the first portion of the string of packets to a second port for transmission to a destination, and sending an indicator from the first port to the second port. The method further includes the steps of receiving the indicator at the second port, sending a response indicator from the second port to the first port, and receiving a second portion of the string of packets from the source port on a third port. Additionally, a method for preventing out-of-ordering of frames in network switch, wherein the method includes receiving packets on a first ingress port from a source port, transmitting the packets from the first ingress port to an egress port for transmission to a destination, and determining to switch the receiving of the packets to a second ingress port.

Abstract: A data communication controller processes incoming data frames. The controller includes a pre-processing block for receiving data frames and a frame processing unit coupled to the pre-processing block. The pre-processing block is configured to compare header fields of a current frame with header fields of a previous frame. The pre-processing block provides an output signal to the frame processing unit on the basis of the comparison of the header fields of the current and previous frames. The controller may operate in accordance with the Fiber Channel protocol, and the output signal may include bits to indicate that the current frame is of the same exchange, of the same sequence, and is next in sequence relative to the previous frame.

Abstract: A controller 12 has an I/O crossover switching network 14, an optional I/O network expansion 16, a plurality of serial I/O shifters 18, a clock generator 20 and I/O control logic 22. The I/O crossover-switching network 14 is also referred to as an I/O multiplexer. Serial data may be transferred between a serial I/O shifter and an external device by way of a dedicated serial data pin (SDATA) 24 or an optional alternate pathway 26 which uses one of a plurality of parallel pins 28. The optional alternate pathway 26 can be used when pins 28 are unavailable or to reduce the number of pins on the device 12. The controller is shown to communicate with an external device 30 also having parallel pins 32. While a single device 30 is shown, the external device 30 can be any number of a plurality of devices having serial and parallel signal pathways that is controlled by the microprocessor 10 of the present invention.

Abstract: A method of scheduling the handling of data from a plurality of channels. The method includes accumulating data from a plurality of channels by a remote access server, scheduling a processor of the server to handle the accumulated data from at least one first one of the channels, once during a first cycle time, and scheduling the processor to handle the accumulated data from at least one second one of the channels, once during a second cycle time different from the first cycle time.

Abstract: A method and apparatus for a hybrid variable rate pipe is described. In one embodiment of the invention, a computer implemented method comprises provisioning a hybrid variable rate pipe on a span of an optical ring and transmitting a set of traffic in the hybrid variable rate pipe.

Abstract: In data transfer in isochronous mode using an IEEE1394 serial bus, the data transfer rate is guaranteed, but data transfer is disabled if the number of channels is insufficient. An already assigned channel is released by lowering the data transfer rate currently using that channel, and the released channel is assigned to new data transfer, thus allowing the new data transfer.

Abstract: A method of adjusting a signal quality target at a transceiver of a CDMA radio communication network. The adjustment of the signal quality target ensures that a predefined frame quality target is reached in power control procedure. According to the invention, the method consists in computing for a received frame, a frame quality indicator depending on signal quality indicators measured at slot level in the received frame. The method further comprises a step of adjusting the signal quality target according to the difference between the frame quality indicator and the predefined frame quality target.

Abstract: A high capacity switch for switching communications traffic. The high capacity switch has a plurality of differing granularity switching levels, each switching level having at least one switch node capable of performing a switching operation at the granularity of the switching level and at least two primary connections, each connecting one of the switching levels to another one of the switching levels. At one of the switching levels, at least one switch node is capable of switching communications traffic along at least one switch connection path established along one of the primary connections, and is also capable of switching communications traffic along at least one secondary connection to another switch node within the same switching level, such that each of the at least one switch connection paths established is filled to a predetermined level.

Abstract: A technique implements a MAC address pool containing a plurality of unique MAC addresses adapted for assignment to a virtual interface or aggregate of a server in a computer network. The MAC address pool is created from original MAC addresses assigned to physical interfaces of a network interface card (NIC) that is used in the server. The physical interfaces and their underlying physical links are organized as the aggregate. Upon system initialization, a virtual interface process of the server collects the originally assigned MAC addresses of the NIC, modifies them and organizes them as a pool. Each originally assigned MAC address is modified by asserting its locally administered bit. Each modified MAC address is a distinct MAC address that does not conflict with other MAC addresses within, e.g., a local area network of the computer network.

Abstract: A system (38) schedules candidate packets (46) for transmission from a communication platform (22), the communication platform (22) being allocated a plurality of transmission resources (24). The system (38) includes a processing element (40) for receiving the packets (46) and establishing a transmission priority (77) for each of the packets (46) according to a desired quality of service. The packets (46) are stored in a candidate packet buffer (42) as candidate packets (48) in accordance with the established transmission priority (77). The system (38) further includes an interference resolver (44) that executes an interference resolution process (84) to concurrently consider transmission resource availability, spatial separation, and temporal separation variables when scheduling the candidate packets (48) for transmission from the communication platform (22).

Abstract: The present invention provides methods and apparatus for reconfiguring protocol data for a multiplexed data stream which is reduced to carry fewer services for cable-side transmission in a cable television plant or the like. More particularly, the present invention provides methods and apparatus for reconfiguring protocol data for a desired combination of multiplexed data stream subgroups contained within an incoming high data rate data stream, such as a high data rate Quadrature Phase Shift Keying (QPSK) modulated multiplexed data stream, when the incoming multiplexed data stream is reduced.

Abstract: A network comprises routers, wherein at least some of the routers are configured to receive a number of datastreams and to output an aggregated datastream. Subject to the precondition that a limiting bit rate ri and a number of burst bits bi can be quoted for each datastream i supplied to a router from outside the network, such that the number Aiin(t1, t2) of data bits which are received at an input of the routers, between a time t1 and a later time t2, satisfies the relationship Aiin(t1, t2)?ri*(t2?t1)+bi, each router j controls the output of data packets in the aggregated datastream ia(j) such that, for a limiting bit rate Ria(j)ag and for a predeterminable burst bit number Bia(j), the number Aia(j)out(t1, t2) of data bits output in the aggregated datastream ia(j) satisfies the relationship Aia(j)out(t1, t2)?Ria(j)ag*(t2?t1)+Bia(j), wherein Ria(j)ag and Bia(j) are independent of the observation time period.

Abstract: The band management circuit of the present invention is utilized in a fiber-optic network that uses, for example, ATM-PDS, in order for an SLT to control the transmissions of a plurality of ONU, which are accommodated by this SLT. The band management circuit of the present invention stores one time in a table an identification number, which specifies a multi-point device for which transmission is authorized. An identification number stored in a table is generated by a table generating portion. The table generating portion sequentially generates the identification number of a number of transmission authorizations determined in accordance with a transmission band provided to respective multi-point devices. A write/read control portion sequentially writes to a table identification number data generated by the table generating portion.

Abstract: A system and a method of controlling transmitter power in a wireless communication system in which user data is processed as a multirate signal having a rate N(t) and in which the user data signal having rate N(t) is converted into a transmission data signal having a faster rate M(t) for transmission. The transmission power is adjusted on a relatively slow basis based on quality of data received by a receiver of the transmitted data. The transmitter power is determined as a function of N(t)/M(t) such that a change in the data rate in the multiple channels or the rate of the transmission data signal is compensated in advance of a quality of data based adjustment associated with such data rate change. Preferably, the user data signal having rate N(t) is converted into the transmission data signal having the faster rate M(t) by repeating selected data bits whereby the energy per bit to noise spectrum density ratio is increased in the transmission data signal.

Abstract: A system and a method of controlling transmitter power in a wireless communication system in which user data is processed as a multirate signal having a rate N(t) and in which the user data signal having rate N(t) is converted into a transmission data signal having a faster rate M(t) for transmission. The transmission power is adjusted on a relatively slow basis based on quality of data received by a receiver of the transmitted data. The transmitter power is determined as a function of N(t)/M(t) such that a change in the data rate in the multiple channels or the rate of the transmission data signal is compensated in advance of a quality of data based adjustment associated with such data rate change. Preferably, the user data signal having rate N(t) is converted into the transmission data signal having the faster rate M(t) by repeating selected data bits whereby the energy per bit to noise spectrum density ratio is increased in the transmission data signal.

Abstract: In a communication network, the responsiveness of the transmission rate of data packets to packet drops is quantified for an aggregate of flows as opposed to on a per-flow basis. In an Aggregate Perturbation Method (APM), a small number of data packets is intentionally dropped from the aggregate at a switching node and a response thereto is measured. Traffic not conforming to the predetermined transmission control protocol may be discovered as a decrement in the reduction in traffic rate compared to that anticipated based on the rate of dropped packets. To prevent interference from the simultaneous application of APM at multiple switching nodes, an orthogonal drop rate signature defining the instantaneous drop rate is assigned thereto. The orthogonal drop rate signature is based on the code division multiple access (CDMA) coding of data, and for that reason, APM with the application of orthogonal drop rate signatures is termed CDMA-based APM, or CAPM.

Abstract: VPI/VCI of an ATM cell is translated into an internal ID by distribution entries into sections in a table according to a portion of each VPI/VCI entry. A section to be searched according to the portion of a VPI/VCI of the received ATM cell is selected; and a search over the selected section is performed to find an entry corresponding to the VPI/VCI of the received ATM cell. An internal ID corresponding to the found entry is outputted.

Abstract: A data reception unit for receiving a plurality of data streams over a data channel. The data streams are received as amounts of data, each amount of data comprising a data portion including data from a data stream and an identity portion identifying that data stream. The data reception unit comprises a data stream memory comprising a plurality of data stream storage areas and a buffer, a first storage information memory for holding first storage information, a processing unit, and a data storage controller. The data storage controller, for each received amount of data, receives the identity portion of the amount of data and performs a storage operation based on the identity portion.

Abstract: A transcoder rate controller is provided which carries out tandem free operation (TFO) transcoding on inter-switching controller signals in a data transmission network.

Abstract: 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 assigning mobile stations to the type of reverse link rate control best suited to their needs. For example, the base station MAC logic may implement both a common rate controller that generates per-sector rate control commands, and a dedicated rate controller that generates per-user rate control commands and assign mobile stations having relatively lax reverse link service needs to the common rate controller, while assigning mobile stations having more demanding reverse link service requirements to the dedicated rate control. More than two rate controls can be implemented, and exemplary choices include per-user, per-sector, per-group, and scheduled rate control in any combination.

Abstract: Method and apparatus for controlling transmission power in a closed loop power control system, wherein power control commands are based on the energy of the previous power control commands. In one embodiment, the method compares changes in the received energy of received power control commands against expected changes in those commands based on previously transmitted power control commands, and identifies suspicious responses to said previously transmitted power control commands. Hypothesis testing of the received power control commands is performed accordance any identified suspicious responses.

Abstract: Data traffic such as cell streams in an ATM communication network frequently contain data destined for multiple output ports having different transmission data rates. In order to accurately schedule such traffic a clocking signal unique to each output data rate is required. This invention provides systems and methods for generating the necessary clock signals utilizing a single timing reference.