Abstract: In a high data rate communication system capable of variable rate transmission, an open loop rate control can be adjusted with a closed loop rate control to maximize throughput. An access point generates interleaved multi-slot packets that allow an access terminal to transmit indicator messages to the access point in accordance with recently received data carried within slots of the multi-slot packets.

Abstract: A method and system for providing asymmetric modes of operation in multi-carrier wireless communication systems. A method may assign a long code mask (LCM) to an information channel associated with a plurality of forward link carriers to transmit data from an access network to an access terminal; and multiplex the information channel on a reverse link carrier. The information channel may include one of data source channel (DSC), data rate control (DRC) and acknowledgment (ACK) information, and the multiplexing may be code division multiplexing (CDM). The AN may instruct the AT on whether to multiplex the DSC information based on feedback from the AT. The method may further offset the ACK information on the reverse link to reduce the reverse link peak to average, CDM the information channel on an I-branch and on a Q-branch, and transmit the code division multiplexed information channel on the reverse link carrier.

Abstract: Embodiments disclosed herein relate to methods and systems for providing adaptive server selection in wireless communications. An access terminal may be configured to determine a forward link quality metric associated with each of a plurality of sectors serviced by a plurality of access points; assign credits to each sector in relation to the forward link quality metric; and change a data source control (DSC) value if the credits accumulated for a non-serving sector at a DSC change boundary is greater than a predetermined threshold, where the non-serving sector and the serving sector for the access terminal belong to different cells. The access terminal may be further configured to change a data rate control (DRC) cover in accordance with the DSC change. The use of DSC may provide an early indication of handoff, thereby allowing the service outage associated with server switching to be substantially reduced.

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: In one embodiment, the patent application comprises an apparatus, method and means for expanding DRC indices comprising assigning multiple DRC covers to at least one sector. In another embodiment, the apparatus, method and means for expanding DRC indices further comprises creating an expanded DRC indices list, sending a mapping of DRC covers to the expanded DRC indices list to an access terminal, and using the mapping to determine a sector and DRC index from the DRC indices list on requests for transmission from the access terminal.

Abstract: Methods and apparatus for a data transmission in a communication system are disclosed. Each of a subset of plural access terminals desiring to transmit user data in an interval transmits a request to transmit in the interval to an access network. The access network makes a decision to schedule at least one of the subset of the plural access terminals to transmit in the interval in accordance with the request. At least one access point of the access network transmits the decision to the plural access terminals.

Abstract: A method and an apparatus for quick retransmission of signals in a communication system are disclosed. A transmitting terminal, e.g., a base station, transmits signals in a form of packets to a receiving terminal, e.g., a subscriber station. The receiving terminal determines if the packet was intended for the receiving terminal, and if so, the receiving terminal demodulates the packet. The receiving terminal then computes a quality metric of the packet, and compares the computed quality metric with a quality metric contained in the packet. If the quality metrics match, the packet is declared correctly received, and is forwarded for further processing. If the quality metrics fail to match, the receiving terminal sends a request for retransmission of the packet. The transmitting terminal determines which packet needs to be retransmitted based on the request for retransmission. The transmitting terminal then schedules the packet for retransmission.

Abstract: The present method and apparatus comprises a communication element comprising a MAC layer that is configured for wireless communication within a sector, wherein said communication element comprises a transmitter, a receiver operably connected to the transmitter, a processor operably connected to the transmitter and the receiver, and memory operably connected to the processor, wherein the communication element is adapted to police data flow, whereby a peak data outflow constraint is applied for each flow across all assigned carriers, select a carrier from a plurality of the assigned carriers for the data flow, and control flow access, whereby a potential allowed transmission power for the data flow on the carrier is determined.

Abstract: A method and system for de-coupling forward and reverse link assignment for multi-carrier wireless communication systems. A method may assign two or more forward link code division multiple access (CDMA) carriers to transmit data from a base station to an access terminal; assign one or more reverse link CDMA carriers to transmit data from the access terminal to the base station; and limit reverse link overhead transmissions corresponding to the two or more forward link CDMA carriers.

Abstract: In a high data rate communication system, a method and apparatus for improved throughput while transmitting data packets within multiple time slots. In order to avoid unnecessary retransmissions of a packet, a subscriber station sends a Stop-Repeat signal to a base station, causing the base station to cease further transmissions of the packet. In order to enable successful decoding of a packet, a subscriber station sends a Continue-Repeat signal to a base station, causing the base station to send retransmissions of the packet during time slots beyond a predetermined default number of time slots.

Abstract: A system to communicate a superposition coded packet from a base station to a plurality of remote stations. At the base station, from a list of user candidates for superposition coding a most deserving user may be determined. Those user candidates with a requested data rate less than that of the most deserving user may be eliminated. A superposition coded packet may be compiled from the remaining user candidates. On receipt, the most deserving user may process the superposition coded packet by assuming a predetermined power allocation. Further, if a user successfully in decodes early, power may be re-allocated to another user.

Abstract: A network entity includes a processor configured to regulate the data rate of transmissions over a wireless channel from a base station to a subscriber station based on feedback from the subscriber station, the feedback relating to the wireless channel conditions, the processor being further configured to determine a substitute data rate for one or more transmissions over the wireless channel.

Abstract: Embodiments disclosed here relate to scheduling packet transmission in a multi-carrier communication system. In an embodiment, a master scheduler having at least one processor and at least one memory operably connected to the at least one processor is adapted to execute instructions stored in the at least one memory, the instructions comprising selecting a packet with a highest packet metric from among candidate packets from one carrier of a plurality of carriers, whereby expedited forwarding flows do not have a higher metric on another carrier.

Abstract: A communication system (100) transmits data packets from a sender (120A) to a receiver (130A) using hybrid automatic repeat request processes. The sender redundantly encodes each packet, divides the packet into subpackets, and sends the subpackets to the receiver in a time-interlaced manner. When the receiver returns a positive acknowledgement of a subpacket using an acknowledgement channel, the sender terminates transmission of the subpackets. The sender interprets the signals on the acknowledgement channel using a metric resulting from correlation of the signals with positive and negative acknowledgement symbols. The sender interprets low correlation of the acknowledgement channel signal with both positive and negative acknowledgement symbols as a preamble miss, and terminates transmission of the subpackets. After termination, the packet may be rescheduled for transmission.

Abstract: Methods and apparatuses to selectively assign interlace preference factors to a plurality of user terminals to use a plurality of interlaces. These methods and apparatuses may improve capacity compared to a system that allows each user terminal to transmit data in every interlace.

Abstract: An access terminal (206) is configured for wireless communication with an access network (204) within a sector (1032). The access terminal (206) includes a transmitter (2608) for transmitting a reverse traffic channel to the access network (204), an antenna (2614) for receiving signals from the access network (204), a processor (2602) and memory (2604) in electronic communication with the processor (2602). Instructions are stored in the memory (2604). The instructions are executable estimate a current value of a reverse activity bit (1444) transmitted by the access network (204). Per flow power allocation may be decreased on increased based on an estimated current value of the reverse activity bit.

Abstract: In a wireless communication system, an apparatus and a method are provided for controlling reverse link interference among access terminals that are power controlled by a sector of a base station. In an embodiment, the maximum effective noise power spectral density is used as a parameter for controlling the level of reverse link loading, by setting a reverse activity bit (RAB) to signal the access terminals to reduce their data rates in order to minimize interference between the access terminals if the maximum effective noise power spectral density is above a predetermined threshold.

Abstract: A method and apparatus for overload detection and control is disclosed. A base station may be in communication with one or more subscriber stations. Overload may be detected as a function of a plurality of parameters, each of which places a load on the base station. Both the type and degree of overload may be ascertained. Appropriate remedial measures may be implemented that are suitable to the type and degree of overload detected.

Abstract: In a multiple-access network, network access terminals conduct peer-to-peer communications on reverse link channels of the network.

Abstract: A communication system includes a plurality of access terminals, and an access network. The access network schedules a transmission of data in a time interval from one of the access terminals. The access network selects a multiple access transmission mode from a plurality of multiple access transmission modes, and broadcasts the selected multiple access transmission mode to the access terminals. The selected mode may include a mode in which data is code-division-multiplexed during the time interval, and modes in which data is code-division-multiplexed during a first portion of the time interval, and data is either time-division-multiplexed or orthogonal-frequency-division-multiplexed during a second portion of the time interval.