Abstract:
PROBLEM TO BE SOLVED: To combine variable-length packets for HRPD (High Rate Packet Data) communication into one physical layer (PL) packet for efficient packet transmission. SOLUTION: Although a plurality of security layer (SL) packets can be multiplexed to a single physical layer (PL) packet in order to improve the efficiency, the SL packets may have a variable length. The length of the SL packet is selected based on the status of channels corresponding to a plurality of security layers. A shorter packet is used for a user in poor channel situation, or a user requesting a smaller amount of data due to application and requirements for quality of service (QoS) accompanied with the application. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve the generation efficiency of a variable-length physical layer packet. SOLUTION: A plurality of security layer (SL) packets are multiplexed to a single physical layer (PL) packet, in order to improve the efficiency. The SL packets may have a variable length. An SL packet in a different format for a different user is combined with a capsule for forming the PL packet. A shorter packet is used for a user in poor channel situation, or a user requesting a smaller amount of data due to application and requirements for quality of service (QoS) accompanied with the application. A preamble structure provides a unicast packet or a multiuser packet. A mechanism is provided for identifying an acknowledgement from a corrected rate set, a single user packet, or a multiplexed packet (delayed acknowledgement). COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve operations in a medium access control (MAC) layer of an access terminal especially in a wireless communication system. SOLUTION: The access terminal 2606 is configured for wireless communications with an access network in a sector, and includes a transmitter 2608 to transmit a reverse traffic channel to the access network, an antenna 2614 to receive signals from the access network, a processor 2602 for electronic communications, and a memory 2604. Commands are stored in the memory 2604, and arranged so as to estimate a current value for a reverse activity bit transmitted from the access network. Per flow power allocation may be increased or decreased based on an estimated current value of the reverse activity bit. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
In a multiple-access network, network access terminals (106) can communicate with network infrastructure access nodes (104), or conduct peer-to-peer communications (110). The access terminals are adapted to adjust the transmit power level in response to power control commands received from the access nodes and from other access terminals.
Abstract:
Un procedimiento para comunicación inalámbrica, que comprende: recibir un mensaje indicador (220, 320) basado en el éxito o fracaso de la descodificación de una ranura de datos actual (n-2) de un paquete de datos de múltiples ranuras; y terminar la transmisión de las ranuras restantes (n+2, n+6) del paquete de datos de múltiples ranuras si la descodificación de la ranura de datos actual es exitosa; caracterizado por que las ranuras de datos predeterminadas y las ranuras de hueco predeterminadas están entrelazadas en un patrón de ranura N uniforme en el paquete de datos de múltiples ranuras, y los datos actuales contenidos en la ranura de datos actual están programados para una pluralidad de retransmisiones, de modo que cada N-ésima ranura exitosa del paquete de datos de múltiples ranuras (400) está programada para ser una ranura de datos que contiene una retransmisión de los datos actuales.
Abstract:
Un procedimiento de operación de una red de acceso múltiple que incluye uno o más nodos (104) de accesode una red celular que sirve a una pluralidad de terminales (106) de acceso en el que un nodo (104) de accesolleva a cabo las etapas de: determinar que hay disponible un modo de comunicación par a par para una comunicación que usa unalista de canales utilizables; e iniciar el establecimiento para pasar al menos un terminal de acceso en la pluralidad de terminales (106) deacceso a una operación de comunicación par a par usando una comunicación punto a punto con al menosotro terminal de acceso y en el que al menos un primer terminal de acceso lleva a cabo las etapas de:transmitir comunicaciones (110) par a par a un segundo terminal (106) de acceso en la pluralidad determinales (106) de acceso por una frecuencia de enlace inverso de la red celular (100); recibir comunicaciones (110) par a par desde el segundo terminal de acceso en la pluralidad determinales (106) de acceso por la frecuencia de enlace inverso de la red celular (100);recibir instrucciones de control de potencia para el control de potencia de bucle cerrado procedentes delnodo (104) de acceso por una frecuencia de enlace directo de la red celular y del segundo terminal(106) de acceso por la frecuencia de enlace inverso de la red celular; y ajustar un nivel de potencia de transmisión para transmisiones par a par hacia el segundo terminal deacceso por la frecuencia de enlace inverso de la red celular, sujeto a las instrucciones de control depotencia recibidas del nodo de acceso de la red celular.
Abstract:
An access network that is configured for wireless communication with an access terminal that comprises a flow. The access network comprises means for determining whether the flow is meeting at least one quality of service requirement, means for sending a grant message to the access terminal if the flow is not meeting the at least one quality of service requirement, and means for allowing the flow to autonomously set its own power allocation if the flow is meeting the at least one quality of service requirement. The grant message comprises a current power allocation grant or an accumulated power allocation grant for the flow.
Abstract:
In a multiple-access network, network access terminals (106) can communicate with network infrastructure access nodes (104), or conduct peer-to-peer communications (110). The access terminals are adapted to adjust the transmit power level in response to power control commands received from the access nodes and from other access terminals.
Abstract:
Reverse Link (RL) data rate allocation in a High Data Rate (such as 1xEV-DO) system as a function of Forward Link (FL) channel quality. Rate shaping of a throughput profile for multiple Access Terminals (ATs) is performed by adjusting transition probabilities associated with a data rate allocation algorithm. The RL maximum data rate per AT is adjusted to reduce the loading in a designated area and result in rate shaping of the cell and/or sector. In one embodiment, the maximum data rates are adjusted as a function of the FL Signal to Interference and Noise Ratio (SINR), such as measured per serving sector or as a captured sum total of FL SINR. In still another embodiment, the maximum data rates are adjusted as a function of differences in riseover-thermal values between neighboring sectors.