Abstract:
PROBLEM TO BE SOLVED: To provide a hybrid protocol supporting communications with multiple networks.SOLUTION: Systems and techniques are disclosed relating to wireless communications. The systems and techniques involve monitoring a first network in accordance with a first air interface, and receiving a message through the first air interface from a second network which is associated with a second air interface different from the first air interface. Various registration and related techniques are also discussed for maintaining connectivity with both networks as a wireless communication device moves through different geographic coverage regions.
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that a user may be charged upon receipt of a broadcast access key (BAK) regardless of whether the user is actually viewing the broadcast content from broadcast-multicast services (BCMCS) at a mobile station of a wireless communication system. SOLUTION: A count value (SKCount) is determined based upon the number of generated short-term keys (SK) that are used to decrypt particular content from the BCMCS. The amount of time, in which the particular content is viewed at the mobile station, may be determined as a function of the count value (SKCount) and the period (SKPeriod) between the generation of the short-term keys. This provides information about a user's actual content view time since the short-term key is needed to view the particular content broadcast to the mobile station. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a new set of radio link protocols (PLPs) configured to provide for efficient data transmission, in a multi-link communication system.SOLUTION: An upper-layer packet is segmented into link-layer packets to be transmitted over a plurality of communication links, with each including a first sequence number in accordance with a predetermined order. A second sequence number is further added to each link-layer packet to be transmitted for the first sequence number. The second sequence number is configured so as to be in a sequence space associated with a particular communication link and is used for detection of missing packets.
Abstract:
PROBLEM TO BE SOLVED: To provide a forward link power control in a cellular system using N T /I O values for evaluating a relative amount of power given onto a traffic channel using the calculation amount of a noise existing on a pilot channel. SOLUTION: A mobile station determines signal intensity according to a communication signal received via a communication channel. A pilot channel signal is determined according to a pilot signal transmitted via the pilot channel. The signal-to-noise ratio of the communication signal is determined according to the determined signal intensity and the pilot channel signal. The transmission power level is controlled according to the signal-to-noise ratio. The pilot channel signal includes a pilot energy and pilot noise component. The pilot noise component is removed to provide remaining pilot signals. Communication system operation is controlled according to the remaining pilot signals. The transmission power level is controlled by the communication channel and determination of the signal-to-noise ratio of the signal in the determined difference signal. The difference signal is formed by determining the difference between the determined signal-to-noise ratio and the desired signal-to-noise ratio. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation:要解决的问题:为了在使用N T SB> / I O SB>值的蜂窝系统中提供前向链路功率控制,用于评估给予 使用导频信道上存在的噪声的计算量的业务信道。 解决方案:移动台根据通过通信信道接收的通信信号来确定信号强度。 根据经由导频信道发送的导频信号来确定导频信道信号。 通信信号的信噪比根据确定的信号强度和导频信道信号来确定。 发射功率电平根据信噪比进行控制。 导频信道信号包括导频能量和导频噪声分量。 导频噪声分量被去除以提供剩余的导频信号。 根据剩余的导频信号控制通信系统的运行。 传输功率电平由通信信道控制,并确定所确定的差分信号中信号的信噪比。 通过确定确定的信噪比和期望的信噪比之间的差异来形成差分信号。 版权所有(C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve the utilization of the forward link, and to reduce a transmission delay by high rate packet data transmission in a data communication system capable of variable rate transmission. SOLUTION: Data transmission on the forward link is time-multiplexed and a base station transmits data at the highest data rate supported by a forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of forward link signals as measured at a mobile station. Upon the determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in the retransmission of the data packet which is erroneously received. The data packet can be transmitted to the outside of a sequence by the use of a sequence number to identify each data unit in the data packet. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve use of a forward link by high rate packet data transmission and to decrease a transmission delay in a data communication system capable of variable rate transmission. SOLUTION: Data transmission on the forward link is time multiplexed and a base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and device for communication between an access terminal (AT) and a remote device through an access point (AP).SOLUTION: Short addresses corresponding to the remote device are used for routing packets from/to the remote device between the AP and the AT for communication through air link. Thus the air link resource is saved. However, longer addresses, such as total IP addresses, corresponding to the remote device are used for the communication between the AP and the remote device. The AT is switched between the long address and the short address when information such as packets is transmitted between the remote device and the AT. The long addresses can be IP addresses which are used for routing packets between the remote device and the AP through the layer 2 tunnel and are corresponding to the remote device, for example. In some embodiment, the remote device is a remote access point.
Abstract:
PROBLEM TO BE SOLVED: To relate to data communication and to provide a new and improved method and apparatus for high rate packet data transmission.SOLUTION: In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.
Abstract:
PROBLEM TO BE SOLVED: To provide a technique for testing the performance of protocols and messages against terminals and access points in CDMA systems.SOLUTION: The performance test comprises a Forward Test Application Protocol (FTAP) for testing forward channels and a reverse test application for testing reverse channels. Techniques are also provided to (1) test different types of channels (e.g., traffic channels as well as auxiliary channels), (2) test bursty data transmissions, (3) support "persistence" testing (i.e., continued testing over connection and disconnection), (4) force the settings of certain auxiliary channels (e.g., so that the error rate of the channels may be determined), and (5) collect, log, and report various statistics that may be used to derive performance metrics such as throughput and packet error rate.
Abstract:
PROBLEM TO BE SOLVED: To provide methods and systems for reporting connection failures in wireless communication systems.SOLUTION: Embodiments disclosed herein relate to methods and systems for reporting and compiling connection failures in wireless communication systems. In an embodiment, when an access terminal experiences a connection failure (e.g., an unintended one), the access terminal may generate a connection failure record associated with the event, and send a message containing the connection failure record to an access network it has since established the connection. The access network may send a message containing a connection failure report acknowledgement (ACK) message to the access terminal, upon reception of the connection failure report message. The network operators may use the connection failure records thus compiled to identify problematic spots in the system and improve the quality of service.