Abstract: A dynamic area search device includes: a search condition obtainment unit that obtains information on search objects and a condition for a search scope for searching for the search objects; an on-map operation detection unit that detects a first user-specified point on a map displayed on a display; a content search unit that searches for elements associated with locations on the map, based on the information on the search objects; a display area determination unit that determines a first area that has the user-specified point at the center, and includes, among the elements searched for by the content search unit, elements that meet the condition for the search scope; and an area boundary display unit configured to dynamically display, on the map, the user-specified point and the first area determined by the display area determination unit.

Abstract: A display control device includes a first-contents-list displaying unit which displays a first contents list on a display screen, a base-point-content identifying unit which identifies a base-point content on the first contents list, a base-point-content-position obtaining unit which obtains a first base-point-content position on the first contents list, a focus position obtaining unit which obtains a focus position on the first contents list, a positional difference calculating unit which calculates a positional difference between the first base-point-content position and the focus position, and a first scrolling unit which scrolls the first contents list displayed on the display screen so that the positional difference decreases.

Abstract: A base station device is provided with features in which multicast data can be prevented from deterioration in the accuracy of channel estimation due to interference of a unicast data pilot signal when multicast data and unicast data are multiplexed for transmission. In this device, a unicast pilot signal generating unit (105-1) generates a unicast data pilot signal, a multicast pilot signal generating unit (105-2) generates a multicast data pilot signal, a disposing unit (106) disposes a unicast data symbol, a multicast data symbol, the unicast data pilot signal, and the multicast pilot signal at either position on a two-dimensional plane comprised of a frequency axis and a time axis to output them to an IFFT unit (107). In this case, the disposing unit (106) disposes the multicast data pilot signal at a position on the two-dimensional plane comprised of the frequency axis and the time axis where the unicast data pilot signal does not interfere with it.

Abstract: There are provided a communication device, a base station, a communication system, and a communication method that make it possible to yield a diversity effect by cooperative relay without involvement of disproportionateness in data received by an eNB even when one of parties has unsuccessfully exchanged data. After received an ACK signal from a repeater 1, a repeater 2 which has transmitted a NACK signal in procedure 7 transmits data S2 to the eNB by use of its own resource, thereby making its own resource available for the repeater 1 (the repeater 2 does not use its own resource, and the repeater 1 uses the resource of the repeater 2). In procedures 8, the repeater 1 has received the NACK signal from the repeater 2 and subsequently transmits data S1 to the eNB by use of its own resource. Subsequently, the repeater 1 which has received the MACK signal in procedure 9 determines that the resource of the repeater 2 is available and transmits data P1 to the eNB by use of the resource of the repeater 2.

Abstract: A repeater capable of improving the data decoding performance at a base station while achieving sharing of processing for data exchange between repeaters and initial data transmission to the base station (eNB) is provided. A repeater 100 which cooperates with another repeater 200 to relay data to a base station 300 includes a storage section 113 which stores first data of the local apparatus, a receiving section 101 which receives at least a portion of the second data of another repeater 200, an interleave section 111 which applies interleaving to at least a portion of the first data and the second data in accordance with a difference in propagation quality between the base station 300 and each of the repeaters, and segments data after interleaving, and a transmitting section 116 which, if data after interleaving is segmented, transmits segmented data to the base station.

Abstract: A display control device includes a first-contents-list displaying unit which displays a first contents list on a display screen, a base-point-content identifying unit which identifies a base-point content on the first contents list, a base-point-content-position obtaining unit which obtains a first base-point-content position on the first contents list, a focus position obtaining unit which obtains a focus position on the first contents list, a positional difference calculating unit which calculates a positional difference between the first base-point-content position and the focus position, and a first scrolling unit which scrolls the first contents list displayed on the display screen so that the positional difference decreases.

Abstract: A dynamic area search device includes: a search condition obtainment unit that obtains information on search objects and a condition for a search scope for searching for the search objects; an on-map operation detection unit that detects a first user-specified point on a map displayed on a display; a content search unit that searches for elements associated with locations on the map, based on the information on the search objects; a display area determination unit that determines a first area that has the user-specified point at the center, and includes, among the elements searched for by the content search unit, elements that meet the condition for the search scope; and an area boundary display unit configured to dynamically display, on the map, the user-specified point and the first area determined by the display area determination unit.

Abstract: Provided is a mobile communication system capable of eliminating the use of a control channel for transmitting specific area information and suppressing the overhead caused by a frequency change process for a mobile station to receive the specific area information. In the mobile communication system, a relay station (20) has a coverage area (21) (specific area) and relays and transmits, in the coverage area (21), a signal received from a base station (10) to a mobile station (30). The relay station (20) adds, to the signal received from the base station (10), the offset of any of a frequency offset, a time offset, and a power offset depending on a risk indicated by risk information in the coverage area (21) (specific area) and transmits the signal after the addition of the offset to the mobile station (30) located in the coverage area (21).

Abstract: Provided is a wireless communication device which can transmit an emergency signal without deteriorating data transmission efficiency. In the device, a modulating section (105) performs modulation processing to an emergency signal and generates an emergency signal symbol, an arranging section (106) arranges the emergency signal symbol at a frequency of a guard carrier wherein a normal signal is not arranged, a diffusion section (107) performs diffusion processing to the emergency signal symbol by using an emergency signal diffusion code, and a wireless transmission section (108) performs transmission processing to the diffused emergency signal symbol and transmits the symbol from an antenna (109).

Abstract: A method is provided for visualizing query results in relation to a map. The method includes: specifying a geographic location of interest around which query results are to be clustered; querying a data source using a search query; constraining entities that satisfy the search query to form a subset of entities having a predefined number of entities that are geographically proximate to the specified location of interest; displaying an indicia for each of the entities in the subset of entities in a content area of a display; displaying a map of a geographic area on the display, where the geographic area includes the specified location of interest; and designating a boundary on the map whereby each of the entities in the subset of entities reside in the boundary and other entities that satisfy the search query reside outside the boundary.

Abstract: Provided is a radio communication device which can obtain an error ratio characteristic equivalent to the one obtained by using a tail bit, without using a tail bit in the error correction and encoding. The device includes: a blocking unit (106) which adds a bit indicating an error detection result in a CRC unit (105) to control data (a bit string) so as to constitute an encoded block and outputs the encoded block to an encoding unit (107); and the encoding unit (107) which corrects and encodes the encoded block. The blocking unit (106) forms an encoded block by a bit string of control data and a probability deviation existence bit added to the tail of the bit string.

Abstract: A wireless communication apparatus and an error detection result feedback method wherein unnecessary retransmissions are avoided to improve the system throughput. At a base station (200), a decoding unit (205) decodes code words, which have been mapped to a TTI bundle, for the respective TTIs in the TTI bundle. An error detecting unit (206) detects errors in the decoding results. A control information generating unit (209) sequentially transmits, in accordance with detection timings, error detection result information related to the code word transmitted in the tail TTI in the TTI bundle, as well as error detection result information related to the code word transmitted in at least one of the other TTIs. In this way, an apparatus that transmits the code words can use the result of error detection in the tail TTI as a reference used for deciding the execution of a retransmission, so that unnecessary retransmissions can be avoided.

Abstract: Disclosed is a wireless communication device that, when both localized transmission and distributed transmission are used, can obtain channel estimation accuracy equivalent to that of localized transmission with distributed transmission. With this device, a setting unit (108) sets the power density of a reference signal by setting the arrangement density in the time domain of the reference signal according to the continuity in the frequency domain of the reference signal. In addition, the setting unit (108) increases the arrangement density in the time domain of the reference signal as the continuity decreases. A transmission RF unit (111) transmits a reference signal having the power density that has been set by the setting unit (108).

Abstract: A radio receiver apparatus and a radio transmitter apparatus wherein the energy loss caused by addition of GI is suppressed, while the reception quality is improved. A signal having been subjected to an IFFT process is repetitively transmitted N times with a length of one OFDM symbol interval. At a receiver apparatus receiving the transmitted signals, a leading data extracting part (207) extracts, from the leading data portions of the direct waves of the received signals, portions that are not interfered with by temporally adjacent data. A combing part (209) combines the received signals in such a manner that align the rear end of each repetitively transmitted data portion except the leading data portion with the rear end of the leading data portion extracted by the leading data extracting part (207). The combined signal is then subjected to an FFT process in an FFT part (210).

Abstract: Provided is a mobile communication system capable of eliminating the use of a control channel for transmitting specific area information and suppressing the overhead caused by a frequency change process for a mobile station to receive the specific area information. In the mobile communication system, a relay station (20) has a coverage area (21) (specific area) and relays and transmits, in the coverage area (21), a signal received from a base station (10) to a mobile station (30). The relay station (20) adds, to the signal received from the base station (10), the offset of any of a frequency offset, a time offset, and a power offset depending on a risk indicated by risk information in the coverage area (21) (specific area) and transmits the signal after the addition of the offset to the mobile station (30) located in the coverage area (21).

Abstract: A repeater capable of improving the data decoding performance at a base station while achieving sharing of processing for data exchange between repeaters and initial data transmission to the base station (eNB) is provided. A repeater 100 which cooperates with another repeater 200 to relay data to a base station 300 includes a storage section 113 which stores first data of the local apparatus, a receiving section 101 which receives at least a portion of the second data of another repeater 200, an interleave section 111 which applies interleaving to at least a portion of the first data and the second data in accordance with a difference in propagation quality between the base station 300 and each of the repeaters, and segments data after interleaving, and a transmitting section 116 which, if data after interleaving is segmented, transmits segmented data to the base station.

Abstract: There are provided a communication device, a base station, a communication system, and a communication method that make it possible to yield a diversity effect by cooperative relay without involvement of disproportionateness in data received by an eNB even when one of parties has unsuccessfully exchanged data. After received an ACK signal from a repeater 1, a repeater 2 which has transmitted a NACK signal in procedure 7 transmits data S2 to the eNB by use of its own resource, thereby making its own resource available for the repeater 1 (the repeater 2 does not use its own resource, and the repeater 1 uses the resource of the repeater 2). In procedures 8, the repeater 1 has received the NACK signal from the repeater 2 and subsequently transmits data S1 to the eNB by use of its own resource. Subsequently, the repeater 1 which has received the MACK signal in procedure 9 determines that the resource of the repeater 2 is available and transmits data P1 to the eNB by use of the resource of the repeater 2.

Abstract: Provided is a radio communication device which can increase a relay performance of a mobile station. In this device, a connection unit (108) performs connection between the local station and a cradle by connecting a connection unit of the cradle. A connection detection unit (109) detects connection between the local station and the cradle and outputs to a relay processing control unit (110), a signal indicating that the connection with the cradle has been detected. If a signal indicating that connection with the cradle has been detected is inputted from the connection detection unit (109), the relay processing control unit (110) outputs a control signal to a relay processing unit (112), a switch (111), and a switch (113) so as to execute a relay process on the signal transferred from the cradle and transmit the obtained signal to the cradle.

Abstract: A wireless communication device, e.g., a mobile station, capable of performing its communication and relay processing for another mobile station, when requested, at the same time without stopping the communication and the relay processing. In the device, an outgoing/incoming call request detection unit (106) detects an outgoing/incoming call request indicating that an outgoing call of the signal of the mobile station or an incoming call is requested from a signal inputted from an upper-layer processing unit (105). A relay request detection unit (108) detects a relay request signal indicating that an MS1 requests an MS2 for relay to a base station from a demodulated relay signal inputted from a relay signal demodulation unit (107).

Abstract: Provided is a wireless communication device which can transmit an emergency signal without deteriorating data transmission efficiency. In the device, a modulating section (105) performs modulation processing to an emergency signal and generates an emergency signal symbol, an arranging section (106) arranges the emergency signal symbol at a frequency of a guard carrier wherein a normal signal is not arranged, a diffusion section (107) performs diffusion processing to the emergency signal symbol by using an emergency signal diffusion code, and a wireless transmission section (108) performs transmission processing to the diffused emergency signal symbol and transmits the symbol from an antenna (109).