Abstract:
PROBLEM TO BE SOLVED: To provide a method in a mobile wireless communication transmitter. SOLUTION: The method includes the steps of: acquiring transmitter power related information, for example, transmitter headroom information and transmitter inter-modulation distortion information (200); and requesting a change to a transmitter channel configuration, for example, a frame size based on the acquired transmitter power related information (210). In another embodiment, the channel configuration is changed based on whether the transmitter is in soft handoff. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a configuration of a mobile wireless communication transmitter for increasing inter-modulation distortion (IMD) beyond its threshold value and coping with a particular data rate or a transport format combination (TFC). SOLUTION: This method includes: a step 200 of obtaining transmitter power related information, for example, transmitter headroom information and transmitter inter-modulation distortion information; and a step 210 of requesting a change in a transmitter channel configuration, for example, revision of a frame size on the basis of the obtained transmitter power related information. The method revises the channel configuration based on whether or not the transmitter is in a soft handoff state. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a data transmission method for reducing both round-trip latency and overhead in a communication system. SOLUTION: Data are arranged in one subframe in a wireless frame. The data contains a plurality of OFDM codes or single carrier FDMA codes. The two or more of codes have different code duration. The duration of the wireless frame and subframe are the same. The code contained in the subframe contains a plurality of subcarriers, and the plurality of the codes and subcarriers contained in the subframe are grouped into a resource block so that a carrier band width is divided into the integral number of resource blocks. In the duration of cyclic prefix of the two or more codes contained in the subframe, only one sample duration corresponding to the minimum carrier band width is different. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for indicating to a communication unit a plurality of modulation and coding schemes (MCSs) to be utilized for communication. SOLUTION: A first MCS is determined for first resource blocks to be sent to a first remote unit or base station, and a second MCS is determined for a second resource block to be sent to the remote unit or base station; and a message is transmitted, indicating the first and the second MCS and also indicating the first resource blocks and the second resource block. Finally, a first PDU is transmitted to the remote unit or base station at a first time, by using the first MCS, and the first resource blocks and a second PDU is transmitted to the remote unit or base station at the first time, by using the second MCS and the second resource block. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for scheduling asynchronous transmission for a plurality of subscriber units, which reduces an amount of overlap and/or gap of transmission segments between the subscriber units.SOLUTION: The method of scheduling asynchronous transmission includes a step (305) of receiving information associated with a plurality of subscriber units that have uplink data to transmit and the information includes uplink timing offset information associated with each of the subscriber units. Two or more subscriber units are selected from a plurality of subscriber units having a timing offset differential that is below a predetermined threshold value (310). The timing offset differential is a difference in timing offset between the subscriber units, and is minimized by being offset by a multiple of the transmission segment size. The transmission segments of data are allocated (315) to the selected two or more subscriber units.
Abstract:
PROBLEM TO BE SOLVED: To provide a system and method for minimizing channelization code which user equipment has to monitor per cell for acrive setting in a wireless communication system providing high speed uplink packet access. SOLUTION: Each user equipment and base station includes a transmitter, a receiver, and a controller. The user equipment transmits data packets to the base station. The base station transmits control information, corresponding to the data packets, to the user equipment. The control information includes an absolute grant channel indicator. The controller of the user equipment minimizes channelization code per scheduling active set cell to be monitored by the user equipment based on the absolute grand channel indicator in response to handoff and/or entering an active channel state. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a digital wireless communication system for reduction of scheduling and ARQ delay. SOLUTION: An up-link transmission scheduling method includes a step for receiving scheduling information 402 from a mobile station 1014 with a base station 301, 303, and 304 in an active set. The scheduling information has at least one of the queue status and electrical power status of the mobile station. The method also includes a step for determining up-link channel scheduling assignment 418 with the base station in the active set by utilizing the scheduling information and at least any one of a base station interfrometer amount and link quality, which correspond to the mobile station. The method still further includes steps for transmitting up-link channel scheduling assignment 418 containing a maximum power margin target with the base station in the active set and for receiving a selection instruction 416 of the modulated encoding system of up-link transmission based on the maximum power margin target from the mobile station with the base station in the active set. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for transmitting data on an orthogonal frequency-division multiplexing carrier, and also to provide a network base station and a user communication device. SOLUTION: An antenna array may transmit a signal decodable by a legacy user communication device designed for compatibility with a legacy set of transmission antennas. A processor 210 may encode a subframe of the signal with a legacy set of common reference symbols and a supplemental set of common reference symbols referring to the antenna array. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a wireless communication infrastructure entity in a wireless communication system implementing an uplink control channel using a narrow band frequency resource within a broad band frequency resource. SOLUTION: This entity 500 includes a controller 520 communicably coupled to a transceiver 510, wherein the controller 520 is configured to cause the transceiver 510 to signal a change of the location for an uplink control channel within the wide band frequency resource. The uplink control channel includes at least a pair of uplink control channels separated within the wide band frequency resource and accommodates to simultaneous uplink transmissions by a plurality of user apparatuses communicating in the wireless communication system. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a wireless communication infrastructure entity executing signaling of scheduling grant or allocation information in a wireless communication system, for instance, redundancy version, transport block size or both of them. SOLUTION: This wireless communication infrastructure entity includes a transceiver, and a controller communicably coupled to the transmitter. The controller is configured to generate parity bits based on scheduling grant information and to encode the parity bits based on additional scheduling grant information not used to generate the parity bits, wherein the encoded parity bits are combined with the scheduling grant information. COPYRIGHT: (C)2010,JPO&INPIT