摘要:
A mobile communication system in which, when transmission is performed from a base station to a terminal device, a modulation scheme is designated, from among at least two modulation schemes with different modulation levels, on the basis of reception quality at the terminal to perform transmission from the base station. The system includes a base station transmitting at a first transmission power using a frequency designed for, in a channel allocation scheme of the system, not causing interference with an adjacent base station and using a first modulation scheme, and a second channel transmitting at a second transmission power lower than the first transmission power, and when the base station uses the second channel, a second modulation scheme having a lower modulation level than the first modulation scheme is designated, and communication is performed.
摘要:
A wireless communication system including a base station and a wireless terminal, the method includes at the wireless terminal, selecting first information used for first random access or second information used for second random access; and transmitting, during or after the completion of random access using selected information, third information to be transmitted to the base station during random access using information which is not selected, the third information being used by the wireless terminal until the random access using information which is not selected is finished.
摘要:
Random access in a wireless communication system including a base station and a wireless terminal, whereby at the wireless terminal, performing first random access scheme using a first random access preamble or second random access scheme using a second random access preamble which is received from the base station.
摘要:
Random access in a wireless communication system including a base station and a wireless terminal, whereby at the wireless terminal, selecting first information used for first random access or second information used for second random access; and transmitting, during or after the completion of random access using selected information, third information with a response message to be transmitted to the base station during random access using information which is not selected.
摘要:
A transmission controlling method for a wireless communication system wherein a plurality of data blocks can be transmitted from a sender apparatus having a plurality of sending antennas to a receiver apparatus, the transmission controlling method includes on the sender apparatus, sending process information which is not competitive between data blocks to the receiver apparatus with a control channel; and sending the data block to the receiver apparatus; and on the receiver apparatus, receiving the data block and the process information from the sender apparatus.
摘要:
A communication system transmits a paging signal from a base station to a mobile terminal, via a designated carrier among multiple carriers. The communication system includes the base station that transmits the paging signal via the designated carrier, and further transmits via a carrier that is among the carriers and not the designated carrier, information that indicates the designated carrier; and the mobile terminal that based on the information received via a carrier to which the mobile terminal is connected, connects to the designated carrier and receives the paging signal transmitted via the designated carrier.
摘要:
The mobile communication network system having a plurality of mobile communication systems each including a base station performing wireless communications with a mobile station, comprises a storage unit storing location information of the mobile station, an acquisition unit acquiring, when receiving a location registering request from the mobile station, a communication-enabled mobile communication system in the mobile station as a sender of the location registering request, a specifying unit specifying a base station existing within the acquired communication-enabled mobile communication system and existing in the periphery of the base station receiving the location registering request, and a control unit storing the storage unit with information of the base station receiving the location registering request and information of the specified base station as location information about the sender mobile station of the location registering request.
摘要:
A method for transmitting a control channel information to perform an adaptive coding and modulation comprising performing error correction coding at a predetermined coding rate for the control channel information; modulating according to a predetermined modulation scheme and transmitting the error correction coded control channel information; and further, prior to the modulation, performing code decimation or code repetition of the error correction coded signal, according to whether or not Multi Input Multi Output is applied.
摘要:
The present method adds uplink data to a transmission request sent to the base station from the mobile station for obtaining permission for data transmission, or to a channel establishment request sent from the mobile station to the base station for establishing a channel in order to send the transmission request therethrough. This makes it possible to suppress delay caused by negotiation prior to actual uplink data transmission as much as possible, thereby realizing efficient uplink data transmission, that is, improved throughput of uplink communication.
摘要:
A terminal apparatus in a wireless communication system having a first and second base station group, and for which access is permitted for a specific base station, and not for a base station other than the specific base station, in the base station belonging to the second base station group, including: a reception unit which receives an identifier from any of base stations belonging to the first base station group; and a detection unit which executes base station detection processing for the second base station group, if the received identifier is an identifier of a base station corresponding to the specific base station in the base station belonging to the first base station group, and restrict execution of the base station detection processing, if not the identifier of the base station corresponding to the specific base station in the base station belonging to the first base station group.