Abstract:
PROBLEM TO BE SOLVED: To provide methods for measuring round-trip delay at a mobile station for mobile WiMAX standards.SOLUTION: A method for measuring round-trip delay at a mobile station includes determining a first time difference between two different types of frames at a base station. The method also includes determining a second time difference between the two different types of frames at a mobile station. The method also includes calculating the round-trip delay on the basis of the first time difference and the second time difference.
Abstract:
PROBLEM TO BE SOLVED: To provide a method and a mobile device for facilitating dynamic service-based system selection and determination.SOLUTION: The method may include presenting system selection options on the basis of information that is received about Network Access Providers (NAPs) and Network Service Providers (NSPs). The method may also include receiving user input about the system selection options. The user may be permitted to provide input about specific services offered by specific NSPs. The method may also include determining user preferences regarding system selection on the basis of the user input. The method may also include creating a preferred roaming list (PRL) on the basis of the user preferences. The method may further include using the PRL to scan for available networks and channels and to find serving systems.
Abstract:
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a service through an MBMS session. The apparatus receives a first notification of an upcoming suspension of the MBMS session. The apparatus requests establishment of a unicast bearer prior to the upcoming suspension of the MBMS session upon receiving the first notification. The apparatus receives a corresponding unicast version of the service of the MBMS session via unicast when the unicast bearer is established. In an aspect, the first notification may be received during a first MCCH modification period, the corresponding unicast version of the service is received via unicast during a second MCCH modification period. In an aspect, the apparatus may further receive a second notification that the MBMS session is suspended during the second MCCH modification period.
Abstract:
Certain embodiments of the present disclosure may allow WiMAX signaling overhead to be reduced by sending burst allocation information to MSs using messages that may be transmitted using more efficient modulation coding schemes (MCSs) than that allowed for DL-MAP and UL-MAP messages. For example, burst allocation information may be sent in SUB-DL-UL-MAP or HARQ-MAP messages that may be encoded with selectable MCSs that result in higher data rate than an MCS used for conventional DL-MAP and UL-MAP messages. For certain embodiments, MSs may be partitioned into groups based on CINR and the burst allocation information for each group may be transmitted using an MCS that is appropriate for that group based on the CINR for MSs in that group.
Abstract:
Técnicas para asignación de recursos para una estación móvil TD-SCDMA con múltiples USIM. De acuerdo con ciertos aspectos, una estación base puede enviar asignación para una primera llamada con una primera identidad de abonado a un UE que soporta múltiples identidades de abonados, en donde la asignación para la primera llamada comprende la asignación de al menos un primer intervalo de tiempo de enlace ascendente y al menos un primer intervalo de tiempo de enlace descendente en un portador de frecuencia y enviar la asignación del UE para una segunda llamada con una segunda identidad de abonado, en donde la asignación para la segunda llamada comprende la asignación de al menos un segundo intervalo de tiempo de enlace ascendente y al menos un segundo intervalo de tiempo de enlace descendente en el portador de frecuencia, en donde el segundo intervalo de tiempo de enlace ascendente es diferente del primer intervalo de tiempo de enlace ascendente.
Abstract:
Methods and apparatus for using a location of a mobile station (MS) to assist network entry and initialization, scanning, and/or handover operations in a radio access technology (RAT), such as WiMAX (Worldwide Interoperability for Microwave Access), are provided. The location of the MS may be ascertained by determining the Global Positioning System (GPS) coordinates of the MS internally or by receiving the location from a GPS device external to the MS. Knowledge of the current or future location of the MS may reduce the amount of base station (BS) information transmitted to the MS; may reduce the power consumption and the amount of time spent during network entry, scanning, or handover; and may increase the bandwidth usage efficiency.
Abstract:
An OFDMA gateway component may serve as an interface between the OFDMA network and CDMA network, detecting a CDMA message targeting the mobile device (610) and, in response, generating an OFDMA message containing information regarding the CDMA message (620, 720). The second aspect is a method comprising: receiving, at an OFDMA base station servicing the mobile device, an OFDMA message containing information regarding a CDMA message sent via a CDMA network targeting the mobile device (620, 720); and - in response, transmitting an OFDMA message containing information regarding the CDMA message form the base station to the mobile device (630, 730). The third aspect is a method comprising: - generating an OFDMA message containing information regarding a CDMA message targeting the CDMA network from the mobile device; and - transmitting the OFDMA message containing the information regarding the CDMA message to an OFDMA base station servicing the mobile device (640, 740, 810).
Abstract:
Methods and apparatus for easily and quickly returning to a first radio access technology (RAT) network when handover to a second RAT network is cancelled are provided. The methods and apparatus may involve a mobile station (MS) entering idle mode before handover to the second RAT network is completed and requesting a serving base station (BS) to retain MS service and operational information, as well as service flow state information. In this manner, should handover to the second RAT network be cancelled before completion, a re-entry to the first RAT network may be expeditiously performed using the retained MS information.
Abstract:
A method for improved decoding of hybrid automatic repeat request (H-ARQ) transmissions may include attempting to verify a physical layer (PHY) cyclic redundancy check (CRC) for a candidate H-ARQ encoder packet. If the PHY CRC is not verified, medium access control layer protocol data units (MPDUs) may be identified in the candidate H-ARQ encoder packet, and attempts may be made to verify a medium access control layer (MAC) CRC for each MPDU in the candidate H-ARQ encoder packet.