Abstract:
PROBLEM TO BE SOLVED: To provide a method of operating a base station in a sectorized cell in wireless communications systems employing multi-sector base stations and wireless terminals with multiple antennas.SOLUTION: Timing synchronization is maintained across the base station sectors, and adjacent sectors form sector pairs. In a sector boundary region, which is a high interference region, a wireless terminal is set to a sector pair state and operated in a MIMO mode of operation, communicating with two adjacent base station antenna faces of the same base station concurrently.
Abstract:
PROBLEM TO BE SOLVED: To provide systems and methodologies that facilitate supporting multiple connections associated with a wireless terminal.SOLUTION: Notifications may be provided to a primary base station upon establishment and/or removal of connections between the wireless terminal and secondary base stations. Additionally, the multiple connections may be evaluated and a preferred connection among the set of multiple connections may be utilized to transfer data to the wireless terminal over a downlink connection.
Abstract:
PROBLEM TO BE SOLVED: To provide a method and an apparatus of wireless communications, more specifically, a method and an apparatus for implementing a dedicated control channel and using the dedicated control channel.SOLUTION: Wireless terminals and base stations support multiple modes of dedicated control channel operation, where different amounts of dedicated uplink resources for reporting control information are allocated to the wireless terminals. A set of dedicated control channel segments is utilized by the wireless terminals to communicate uplink control information reports to serving base station attachment points. Full tone and split-tone modes of dedicated control channel operation are supported. In the full tone mode, each of the dedicated control channel segments associated with a single logical tone is allocated to a single wireless terminal. In the split tone mode, dedicated control channel segments associated with a single logical tone are allocated between different wireless terminals.
Abstract:
PROBLEM TO BE SOLVED: To provide methods and apparatus for routing messages between an end node and an access node via another access node.SOLUTION: Physical layer identification information is used when identifying a remote, e.g., adjacent, access node as a message destination. Thus, when a connection identifier based on one or more physical layer identifiers is available to a wireless terminal, e.g., from one or more downlink signals received from a destination access node, the wireless terminal can use the connection identifier corresponding to the destination node to route a message via an access node having an established uplink connection. Such connection identifier information can be used even when other addressing information, e.g., network layer address information, associated with the destination access node, may not be available to the wireless terminal.
Abstract:
PROBLEM TO BE SOLVED: To provide systems and methodologies that facilitate assigning a flow (e.g., IP flow) to a wireless network link from a bundle that includes a plurality of wireless network links.SOLUTION: Assignments can be based upon characteristics associated with the flow and upon characteristics associated with the links. For example, a service class corresponding to the flow can be evaluated to determine flow related characteristics. Moreover, link related feedback can be analyzed to determine characteristics of the links.
Abstract:
PROBLEM TO BE SOLVED: To provide functionality such as treating packets associated with identified traffic flows with different quality of service levels to meet the requirements of various traffic flows.SOLUTION: A base station determines a configuration of a wireless terminal, intended to support a specific traffic flow and sends a configuration command to the wireless terminal. The base station may determine one or more parameters associated with classification, queue management, scheduling, and/or automatic repeat request, and then send a configuration command to the wireless terminal instructing it to implement configuration operation. In some embodiments, a wireless terminal sets the value of an internal parameter to a value directly provided by the base station in a configuration command. In some embodiments, a wireless terminal determines and sets the value of an internal parameter as a function of information included in the configuration command from the base station.
Abstract:
PROBLEM TO BE SOLVED: To provide methods and apparatus for routing messages between an end node and an access node via another access node.SOLUTION: Physical layer identification information is used when identifying a remote, e.g., adjacent, access node as a message destination. Thus, when a connection identifier based on one or more physical layer identifiers is available to a wireless terminal, e.g., from one or more downlink signals received from a destination access node, the wireless terminal can use the connection identifier corresponding to the destination node to route a message via an access node with which it has an established uplink connection. Such connection identifier information can be used even when other addressing information, e.g., network layer address information, associated with the destination access node, may not be available to the wireless terminal.
Abstract:
Methods and apparatus for improved utilization of air link resources are discussed in wireless communications systems employing multi-sector base stations and wireless terminals with multiple antennas. Timing synchronization is maintained across the base station sectors, and the same set of tones are used in adjacent sectors. In a sector boundary region, which is typically a high interference region, a wireless terminal is set to a sector pair state and operated in a MIMO mode of operation, communicating with two adjacent base station antenna faces of the same base station concurrently, the two different adjacent base station antenna faces corresponding to different adjacent sectors. Thus, typically high interference sector boundary regions, are converted into high capacity regions by having the sectors coordinated and utilizing MIMO techniques.
Abstract:
METHODS AND APPARATUS FOR IMPROVED UTILIZATION OF AIR LINK RESOURCES ARE DISCUSSED IN WIRELESS COMMUNICATIONS SYSTEMS EMPLOYING MULTI-SECTOR BASE STATIONS (102, 202) AND WIRELESS TERMINALS (124, 126, 130, 132) WITH MULTIPLE ANTENNAS. TIMING SYNCHRONIZATION IS MAINTAINED ACROSS THE BASE STATION SECTORS, AND THE SAME SET OF TONES ARE USED IN ADJACENT SECTORS. IN A SECTOR BOUNDARY REGION, WHICH IS TYPICALLY A HIGH INTERFERENCE REGION, A WIRELESS TERMINAL IS SET TO A SECTOR PAIR STATE AND OPERATED IN A MIMO MODE OF OPERATION, COMMUNICATING WITH TWO ADJACENT BASE STATION ANTENNA FACES OF THE SAME BASE STATION CONCURRENTLY, THE TWO DIFFERENT ADJACENT BASE STATION ANTENNA FACES CORRESPONDING TO DIFFERENT ADJACENT SECTORS. THUS, TYPICALLY HIGH INTERFERENCE SECTOR BOUNDARY REGIONS, ARE CONVERTED INTO HIGH CAPACITY REGIONS BY HAVING THE SECTORS COORDINATED AND UTILIZING MIMO TECHNIQUES.
Abstract:
método e equipamento de comunicação usando identificadores de ponto de anexação físico. métodos e equipamento para o roteamento de mensagens entre um nó final e um nó de acesso através de outro nó de acesso são descritos. uma informação de identificação de camada física é usada ao identificar um nó de acesso remoto, por exemplo, adjacente como um destino de mensagem. assim, quando um identificador de conexão com base em um ou mais identificadores de camada física estiver disponível para um terminal sem fio, por exemplo, de um ou mais sinais de enlace descendente recebidos de um nó de acesso de destino, o terminal sem fio pode usar o identificador de conexão correspondente ao nó de destino para direcionar uma mensagem através de um nó de acesso com o qual ele estabeleceu uma conexão de enlace ascendente. esta informação de identificador de conexão pode ser usada mesmo quando outra informação de endereçamento, por exemplo, uma informação de endereço de camada de rede associada ao nó de acesso de destino não estiver disponível para o terminal sem fio.