Abstract: A vehicle communicating with first and second wireless communication terminal and second wireless communication terminals includes a manual driving mode and an autonomous driving mode. In the manual driving mode, when a predetermined relationship with the first wireless communication terminal is established, manual driving by the occupant is possible, and when the predetermined relationship with the first wireless communication terminal is not established, the manual driving is impossible, and when the predetermined relationship with the first wireless communication terminal is established, transition to the manual driving mode is possible.

Abstract: An antenna device includes a ground conductor; a ground conductor extension that is connected to the ground conductor; and an antenna element that is connected to the ground conductor and that operates in both a first frequency band and a second frequency band higher than the first frequency band, the ground conductor and the ground conductor extension having a length that is ¼ of a wavelength of a frequency included in a middle range between the first frequency band and the second frequency band and that is not a natural number multiple of ¼ of a wavelength of the first frequency band.

Abstract: A mobile wireless device includes a first microphone that receives an audio signal, a plurality of antennas disposed at different distances from the first microphone, a wireless unit that performs wireless signal processing for signals received/transmitted through the antennas, an antenna switch that is connected to the wireless unit and performs antenna switching to connect one of the plurality of antennas to the wireless unit, an audio signal processor that processes the audio signal, and a main body that is wearable and includes the wireless unit, the first microphone, the antenna switch, the audio signal processor, and at least one of the antennas. The audio signal processor calculates a level of the audio signal. The antenna switch performs the antenna switching based on the level of the audio signal to switch to one of the antennas that is anticipated to provide better performance.

Abstract: An antenna device includes a ground conductor; a ground conductor extension that is connected to the ground conductor; and an antenna element that is connected to the ground conductor and that operates in both a first frequency band and a second frequency band higher than the first frequency band, the ground conductor and the ground conductor extension having a length that is ¼ of a wavelength of a frequency included in a middle range between the first frequency band and the second frequency band and that is not a natural number multiple of ¼ of a wavelength of the first frequency band.

Abstract: A mobile wireless device includes a first microphone that receives an audio signal, a plurality of antennas disposed at different distances from the first microphone, a wireless unit that performs wireless signal processing for signals received/transmitted through the antennas, an antenna switch that is connected to the wireless unit and performs antenna switching to connect one of the plurality of antennas to the wireless unit, an audio signal processor that processes the audio signal, and a main body that is wearable and includes the wireless unit, the first microphone, the antenna switch, the audio signal processor, and at least one of the antennas. The audio signal processor calculates a level of the audio signal. The antenna switch performs the antenna switching based on the level of the audio signal to switch to one of the antennas that is anticipated to provide better performance.

Abstract: Provided is a communication system that can set, in an RLC layer, an RLC STATUS PDU without depending on the resource allocation of each of a plurality of LCHs and with the latest data state and that can generate an RLC data PDU. In this system, an RLC unit (RLC layer) (120) receives, from a MAC unit (MAC layer) (110), a total radio resource size together with the allocated radio resource size of each logic channel (LCH). Further, the RLC unit (RLC layer) (120) refers to the allocated size of each LCH and sets transport data of each LCH within the range of the total radio resource size.

Abstract: A communication terminal device of the present invention can prevent assignment of unnecessary wireless resources and can efficiently assign the wireless resources in a situation in which there is data that cannot be transmitted immediately. In the device, a MAC control element generation unit (115) generates a BSR MAC control element for reporting to a base station a transmittable data volume. The memory usage management unit (106), if a notification is received that resources have been exhausted from the memory usage management unit (111), or if the stored data volume of a pre-encryption data buffer (102) or a post-encryption data buffer (104) exceeds a threshold, performs a transmittable data volume notification, in which the stored data volumes of the pre-encryption data buffer (102) and the post-encryption data buffer (104) are set to “0,” to the BSR MAC control element generation unit (115).

Abstract: This invention relates to a base station apparatus (eNB) capable of reducing the data processing delay (U-plane latency) by more amount than an LTE system during a semi-persistent scheduling. In an eNB (100), which is operative to perform a semi-persistent scheduling for a UE, a scheduler (102) performs, in accordance with the service type of a service to be used by the UE, a scheduling of upstream data to be transmitted by the UE, and a radio processing unit (103) transmits, to the UE, scheduling information indicating a result of the scheduling performed by the scheduler (102). Here, when the UE is to use a service corresponding to a semi-persistent scheduling, the scheduler (102) is triggered, by the establishment of a radio bearer of the service corresponding to the semi-persistent scheduling between the eNB (100) and the UE, to perform the semi-persistent scheduling.

Abstract: The CM controller 101 outputs times at which signals are sent to various communication terminal apparatuses in a compressed mode based on information on the compressed mode sent from a host station such as a control station apparatus to the scheduler 102, coder 105 and modulator 106. The scheduler 102 decides times (order) at which packet data is sent to the respective communication terminal apparatuses based on priority information such as channel conditions and times at which signals are sent in the compressed mode and outputs schedule information indicating the times for creating this packet data to the switch circuit 104. The switch circuit 104 outputs the packet data to be sent to the communication terminal apparatuses sequentially to the coder 105 according to the schedule created by the scheduler 102.

Abstract: A transmission rate determining method that enables assignment of transmission rate (modulation scheme and coding rate) to be optimized with high accuracy in the AMC technique. In the method, in a base station, Doppler frequency detector 117 detects the Doppler frequency (moving speed) of each mobile station. MCS assignment section 125 corrects a relational expression of MCS (coding rate and modulation scheme) and CIR based on the Doppler frequency (moving speed) obtained in Doppler frequency detector 117, for example, corrects a threshold in CIR, and determines MCS optimal for CIR report value. Results of assignment in MCS assignment section 125 are output to coding section 101 and modulation section 103.

Abstract: At noise component addition section 105, a noise equivalent value equivalent in size to noise component is calculated using a constant which is dependent on a difference of spreading factors between a common pilot channel and packet channels, and at correlation matrix and correlation vector calculation section 106, the noise equivalent value is added to diagonal elements of an autocorrelation matrix. At weight calculation section 107, an optimal weight is calculated using the autocorrelation matrix whose diagonal elements have been added the noise equivalent value, and at adaptive equalization section 108, equalization of reception signal is carried out. Thereby, noise enhancement produced in the packet channels after the equalization due to the difference between the spreading factor of the common pilot channel and the spreading factor of the packet channels can be reduced.

Abstract: The PL signal of a PL portion is multiplied by gain factor ?c in a multiplier(109) and the data of a data portion is multiplied by gain factor ?d in a multiplier(110). These gain factors ?c and ?d are controlled in a weight controlling circuit (112). The PL signal and data thus multiplied by gain factors are added in an adder (111) and become an added PL signal. This added PL signal is output to a delay profile generation circuit (113). In the delay profile generation circuit (113), a delay profile is generated using the added PL signal. The delay profile is output to a path selection circuit (104) where path search is performed, and the information of selected reception timings are output to a RAKE combining circuit (105) and a channel estimation circuit (115). By this means, iterative path search and channel estimation can be performed with accuracy even when receiving signals where channels of different transmission power ratios are multiplexed.

Abstract: At noise component addition section 105, a noise equivalent value equivalent in size to noise component is calculated using a constant which is dependent on a difference of spreading factors between a common pilot channel and packet channels, and at correlation matrix and correlation vector calculation section 106, the noise equivalent value is added to diagonal elements of an autocorrelation matrix. At weight calculation section 107, an optimal weight is calculated using the autocorrelation matrix whose diagonal elements have been added the noise equivalent value, and at adaptive equalization section 108, equalization of reception signal is carried out. Thereby, noise enhancement produced in the packet channels after the equalization due to the difference between the spreading factor of the common pilot channel and the spreading factor of the packet channels can be reduced.

Abstract: A UE/queue selected by a scheduler is input to an offset table (111) and a corresponding offset value is output to a CQI conversion section (112). Using this offset value, the CQI conversion section (112) converts a CQI output from a demodulation/decoding section and outputs the converted CQI to an adaptive modulation parameter determination section (113). Based on the converted CQI, the adaptive modulation parameter determination section (113) determines and outputs adaptive modulation parameters with reference to an adaptive modulation parameter table (114). Then, a transmission packet is adaptively modulated using these adaptive modulation parameters. This makes it possible to realize fast data transmission while satisfying QoS of the transmission packet.

Abstract: RSCP calculation sections 106a-160c calculate RSCP per path, using average signal powers. Multipliers 107a-107c multiply symbol power deviations per path and per slot by the RSCP per path, thereby weighting the deviations per path and per slot. A combining section 108 calculates a total RSCP by adding the RSCP values per path. Another combining section 109 calculates symbol power deviations per slot by adding the weighted symbol power deviations per path. An ISCP calculation section 110 calculates symbol power variance values per slot, using the symbol power deviations per slot. An averaging section 111 calculates a total ISCP by averaging the symbol power variance values across multiple slots. An SIR calculation section 112 calculates SIR from the total RSCP and the total ISCP. SIR measurement before RAKE combining can be performed with as high accuracy as SIR measurement after RAKE combining.

Abstract: An fD detector 104 detects a maximum Doppler frequency from a received signal and outputs to a schedule creating section 105. The schedule creating section 105 determines, for each user, a time (or order) at which to transmit packet data thereto from the maximum Doppler frequencies detected by the fD detector 104, and outputs to a switch circuit 107 and a multiplexing section 108 schedule information indicating these times at which to transmit the packets of data. The switch circuit 107 sequentially outputs the packets of data to be transmitted to the respective users to an encoding section 109 according to the schedule created by the schedule creating section 105. The multiplexing section 108 multiplexes the schedule for transmitting the packets of data, output from the schedule creating section 105 and control data necessary for transmitting packet data on a common channel, and outputs to the encoding section 109.

Abstract: A transmission rate determining method that enables assignment of transmission rate (modulation scheme and coding rate) to be optimized with high accuracy in the AMC technique. In the method, in abase station, Doppler frequency detector 117 detects the Doppler frequency (moving speed) of each mobile station. MCS assignment section 125 corrects a relational expression of MCS (coding rate and modulation scheme) and CIR based on the Doppler frequency (moving speed) obtained in Doppler frequency detector 117, for example, corrects a threshold in CIR, and determines MCS optimal for CIR report value. Results of assignment in MCS assignment section 125 are output to coding section 101 and modulation section 103.

Abstract: A priority queue (111) notifies storage time at which a transmit packet was stored and the like to a timer (112). The timer (112) calculates remaining time of each packet of data and outputs to a scheduler (113). The scheduler (113) acquires receive qualities of mobile stations from a demodulator (107), calculates priority of each packet (=receive quality×1/remaining time), and selects the queue having the packet of highest priority stored. Furthermore, the scheduler (113) decides transmit conditions such as the modulation scheme and the encoding rate according to the priority, and controls circuits such as HARQ section (116) and modulator (103). A switch (114) switches outputs of the priority queue (111). By this means, the amount of computation processing and processing time of scheduling in packet control can be reduced, and thus throughput of the communication system can be increased.

Abstract: Delay profiles of respective branch received signals received through a plurality of antennas are formed; peaks on each of formed delay profile signals are detected; the maximum peaks are obtained among detected peaks on the respective delay profile signals; and average delay differentials between the delay profiles are obtained by averaging a desired number of delay differentials among the maximum peaks.

Abstract: The CM controller 101 outputs times at which signals are sent to various communication terminal apparatuses in a compressed mode based on information on the compressed mode sent from a host station such as a control station apparatus to the scheduler 102, coder 105 and modulator 106. The scheduler 102 decides times (order) at which packet data is sent to the respective communication terminal apparatuses based on priority information such as channel conditions and times at which signals are sent in the compressed mode and outputs schedule information indicating the times for creating this packet data to the switch circuit 104. The switch circuit 104 outputs the packet data to be sent to the communication terminal apparatuses sequentially to the coder 105 according to the schedule created by the scheduler 102.