摘要:
LDPC coding is executed using a check matrix of an LDPC code whose code length is 736 bits and whose code rate is 1/4, and modulation is executed using a repetition unit that has an LDPC code obtained by the LDPC coding, repeatedly arranged therein. The LDPC code includes information bits and parity bits, the check matrix includes an information matrix portion corresponding to the information bits and a parity matrix portion corresponding to the parity bits, the parity matrix portion has a stepwise structure, the information matrix portion is indicated by a check matrix initial value table, and the check matrix initial value table is a predetermined table indicating positions of elements of “1” of the information matrix portion for each eight columns. This technique is applicable to, for example, information transmission using the LDPC code.
摘要:
Provided is a wireless communication device including a reception controller that controls reception of a plurality of data frames provided by another device through repeated transmission, the plurality of data frames including the same data. The wireless communication device further includes a transmission controller that controls transmission of a confirmation response signal to the other device on a per-data frame basis, on a per-repeated transmission basis, or both.
摘要:
A communications apparatus and method provide logic for establishing communications sessions in accordance with one or more connection rights. In one implementation, a communications apparatus may include a control circuit configured to establish, through an information processing apparatus, a communications session with an additional communications apparatus associated with one or more first connection rights. The established communications session may be associated with one or more second connection rights that differ from the first connection rights, and the control circuit may be further configured to generate an instruction to transmit data in accordance with the second connection rights.
摘要:
[Object] To provide a mechanism of carrier sense considering the influence of not only the own network but also other networks in a wireless communication system.[Solution] Provided is a terminal device, including: a wireless communication unit that performs communication with a base station that forms a first wireless network; a carrier sense unit that performs carrier sense with another device; and a control unit that controls a signal detection threshold so that another terminal device belonging to a second wireless network different from the first wireless network is outside a signal detection range, based on a carrier sense result by the carrier sense unit.
摘要:
There is provided a communication control system that receives monitoring information from a plurality of wireless terminals, the monitoring information indicating reception powers at each of the plurality of wireless terminals in a case that packets transmitted from other of the plurality of wireless terminals are received at each of the plurality of wireless terminals; and determines a representative wireless terminal from the plurality of wireless terminals based on the collected monitoring information.
摘要:
[Object] To provide a wireless communication device, wireless communication method, and a wireless communication system capable of further reducing power consumption of a mobile station. [Solution] Provided is a wireless communication device including a wireless communication unit configured to perform wireless communication with a base station, a measurement unit configured to detect a predetermined signal pattern from a signal received by the wireless communication unit and measure reception power of the signal including the predetermined signal pattern, and a control unit configured to control at least one of a packet transmission time length and transmission power when the wireless communication unit transmits a signal, based on pre-decided transmission power of the base station and the reception power measured by the measurement unit.
摘要:
To perform an appropriate data transmission rate control.An information processing apparatus is an information processing apparatus that receives a stream for outputting image information from another information processing apparatus through wireless communications, and includes a wireless communication unit and a control unit. The wireless communication unit performs communications with the other information processing apparatus for exchanging capability information on the information processing apparatus and capability information on the other information processing apparatus. The control unit performs a stream data transmission rate control relating to the other information processing apparatus, according to the capability information on the other information processing apparatus, radio propagation measurement information on communications with the other information processing apparatus, and usage of the information processing apparatus.
摘要:
[Object] To enable a time before communication by way of a wireless network starts to be further reduced.[Solution] Provided is a terminal device including: an acquisition unit configured to acquire authentication information provided by another terminal device configured to perform mobile communication in a mobile communication network; and an authentication execution unit configured to perform an authentication procedure for connecting to a wireless network different from the mobile communication network by using the authentication information. The authentication information includes information provided by a subscriber identity module of the other terminal device or information generated based on the information. The acquisition unit acquires at least some of the authentication information before the authentication procedure starts.
摘要:
A proper communication service is provided according to use by a user.An information processing apparatus includes a selection unit and a control unit. Based on a request from a wireless communication apparatus, the selection unit selects a connection right that has to be set to be in the wireless communication apparatus, from among multiple types of connection rights for connecting to a predetermined network using a wireless communication. The control unit controls a wireless communication service relating to the request, which is performed between the information processing apparatus and the wireless communication apparatus after the connection right that is selected by the selection unit is set to be in the wireless communication apparatus.
摘要:
An appropriate communication service is provided in response to usage of a user.The information processing apparatus includes a control unit and a recording unit. The control unit is configured to perform control so as to give a wireless communication apparatus a connection credit for connecting to a predetermined network using a wireless communication, wherein the connection credit is used to provide a particular service. The recording unit is configured to record a usage history of a service other than a particular service by the wireless communication apparatus connecting to the network using the given connection credit.