69results about How to "Efficiently transmit/receive" patented technology

A mechanism to enable multiple message threads management in the context of the Converged IP Messaging (CPM) service and in the context of CPM inter-working with SMS is provided. A CPM user can simply start a message-based conversation with another CPM or Short Message Service (SMS) user without explicitly establishing a session beforehand. All messages that belong to a given conversation are displayed in the corresponding conversational view (i.e. window) in the CPM user device, even if the conversation is stopped and restarted at a later time, and even if there are multiple message threads available (currently active or stored) in the CPM device. Message structures and behavior of the CPM system elements to enable the functionalities above as well as a mechanism makes the message threads management possible even between a CPM user and an SMS user are also provided.

A default subcarrier spacing for use in transmission / reception of a broadcast channel is defined for each frequency range. A base station transmits a broadcast channel in a frequency band, using the default subcarrier spacing defined for a frequency range to which the corresponding frequency band belongs. A user equipment attempts to detect a broadcast channel in the frequency band where a cell search is being attempted, using the default subcarrier spacing defined for a frequency range to which the frequency band belongs.

A method and apparatus for performing bidirectional communication between a transmitter and a receiver in a wireless power transmission system are provided. The method includes detecting the receiver; transmitting, when the receiver is detected, transmitting a predetermined level of power to the receiver through a transmission (Tx) resonator; receiving a request for transmitting wireless power from the receiver through a wireless communication module; allocating a Short IDentification (SID) and a time slot corresponding to the receiver; transmitting the SID and the time slot to the receiver through the wireless communication module; receiving a request for required power from the receiver through the wireless communication module; determining whether the required power is greater than a residual power of the transmitter; and when the required power is greater than the residual power, informing the receiver through the wireless communication module that the required power cannot be transmitted.

A method and an apparatus for transmitting / receiving feedback in a mobile communication system are provided. A method of configuring and receiving feedback information of an evolved Node B (eNB) includes transmitting configuration information on a plurality of reference signals including a first reference signal and a second reference signal to a User Equipment (UE); transmitting feedback configuration information including first feedback configuration information on the first reference signal and second feedback configuration information configured such that feedback information on the second reference signal is generated with reference to the first feedback configuration information to the UE; transmitting the reference signal to the UE according to the configuration information on the reference signal; and receiving feedback information including first feedback information according to the first feedback configuration information and second feedback information according to the second feedback configuration information from the UE.

A method and apparatus for transmitting a packet data control channel in an OFDMA wireless communication system are provided. The method includes dividing control information for user data transmitted during a specific frame into a packet data control channel to be transmitted in a diversity mode and a packet data control channel to be transmitted in an Adaptive Modulation and Coding (AMC) mode; encoding and modulating the packet data control channel to be transmitted in the diversity mode and the packet data control channel to be transmitted in the AMC mode; and mapping the encoded and modulated packet data control channels to sub-carriers, before transmission.

When a user equipment transmits a random access preamble, a base station transmits a random access response to the user equipment in response to the random access preamble. The base station may include CSI measurement configuration information in the random access response and then transmit the random access response. The user equipment may perform a CSI report on the basis of the CSI measurement configuration information.

A user equipment according to the present invention transmits a medium access control (MAC) protocol data unit (PDU), containing the RRC message and a data volume and power headroom (DV-PH) report but no BSR, using a uplink grant received in a random access response.

A radar apparatus, an antenna apparatus, and a data acquisition method are provided, which can reduce the size of a radar apparatus as well as maintaining angular resolution.

A user equipment (UE) receives UE group information indicating a first UE group to which the UE belongs, and transmits uplink (UL) data and a demodulation reference signal (DM-RS), which is for demodulating the UL data, on the basis of the UE group information. The DM-RS is transmitted by means of a first uplink demodulation reference signal (UL DM-RS) resource, which corresponds to the first UE group to which the UE belongs, among a plurality of UL DM-RS resources respectively corresponding to one or more UE groups.

A user equipment (UE) starts a downlink (DL) discontinuous reception (DRX) retransmission timer for a DL hybrid automatic repeat and request (HARQ) process of the UE. The UE monitors a physical downlink control channel (PDCCH) while the DL DRX retransmission timer for the DL HARQ process is running The UE stops the DL DRX retransmission timer for the DL HARQ process when the UE receives a PDCCH indicating a uplink (UL) transmission.

As the protocol used to transmit the MIDI message, TCP and UDP used widely as the transmission protocol are employed. A player terminal on the transmitter side classifies the transmitted MIDI message into the system exclusive message that should never be lost absolutely and other MIDI message. The player terminal on the transmitter side transmits the system exclusive message by using TCP with high reliability and transmits other MIDI message by using UDP with low reliability.

A UE transmits a random access channel (RACH) preamble and a BS receives the RACH channel. The BS configures the RACH preamble to align boundaries of the RACH preamble with boundaries of OFDM symbols on which the RACH preamble is configured in the time domain. The UE generates / transmits the RACH preamble to align the boundaries of the RACH preamble with the boundaries of OFDM symbols on which the RACH preamble is configured in the time domain.

A user equipment (UE) receives receiving discontinuous reception (DRX) configuration information including information indicating subframes for the start of an on-duration timer and a value of the on-duration timer. The UE starts the on-duration timer in a subframe n based on the DRX configuration information if a hybrid automatic repeat request (HARQ) round trip time (RTT) timer is not running. The UE monitors a physical downlink control channel (PDCCH) to receive downlink control information while the on-duration timer is running.

As the protocol used to transmit the MIDI message, TCP and UDP used widely as the transmission protocol are employed. A player terminal on the transmitter side classifies the transmitted MIDI message into the system exclusive message that should never be lost absolutely and other MIDI message. The player terminal on the transmitter side transmits the system exclusive message by using TCP with high reliability and transmits other MIDI message by using UDP with low reliability.

A method and an apparatus for transmitting / receiving feedback in a mobile communication system are provided. A method of configuring and receiving feedback information of an evolved Node B (eNB) includes transmitting configuration information on a plurality of reference signals including a first reference signal and a second reference signal to a User Equipment (UE); transmitting feedback configuration information including first feedback configuration information on the first reference signal and second feedback configuration information configured such that feedback information on the second reference signal is generated with reference to the first feedback configuration information to the UE; transmitting the reference signal to the UE according to the configuration information on the reference signal; and receiving feedback information including first feedback information according to the first feedback configuration information and second feedback information according to the second feedback configuration information from the UE.

In the present invention, when a UE transmits a random access preamble, the UE maintains a power ramping counter used for determination of a transmission power equally to a value of previous transmission without incrementing the power ramping counter if a target synchronization signal block is changed differently from a previous random access preamble transmission.

A base station receives uplink data and a first demodulation reference signal (DMRS) in a physical multiple access (MA) resource, and attempts to decode the uplink data, using the first DMRS. When the base station fails to decode the uplink data, the base station transmits an ACK / NACK for a first MA signature corresponding to the first DMRS among multiple MA signatures. When the ACK / NACK for the first MA signature is a NACK and the received power level of the first DMRS is higher than or equal to a threshold, the base station transmits a MA signature reselection command for the first MA signature together with the ACK / NACK. When the ACK / NACK for the first MA signature is a NACK and the received power level of the first DMRS is lower than the threshold, the base station transmits a MA signature maintenance command for the first MA signature together with the ACK / NACK.

Disclosed herein are a signal-multiplexing apparatus and method based on machine learning. The signal-multiplexing method based on machine learning, performed by a signal-multiplexing apparatus based on machine learning, including training a transmitted signal using a machine-learning technique, performing complex mapping to transmit the transmitted signal as multiple signals, receiving the multiple signals and regularizing the multiple signals based on a preset rule corresponding to the machine-learning technique, outputting an estimated value for the transmitted signal by training regularized multiple signals using the machine-learning technique, calculating a difference between the transmitted signal and the estimated value for the transmitted signal, and detecting the transmitted signal from an output value when the difference is less than or equal to a preset value.

A user equipment (UE) (first UE) receives setting information about a plurality of transmission (Tx) resource pools and a plurality of reception (Rx) resource pools for a cell. On the basis of the setting information, and the identity (ID) of the first UE (first UE ID) or the ID of another UE (second UE) (second UE ID) connected for proximity-based wireless communication with the first UE, the first UE determines a portion (Tx resource group) of the plurality of Tx resource pools and a portion (Rx resource group) of the plurality of Rx resource pools. The first UE performs sidelink transmission to the second UE by using a Tx resource pool which belongs to the Tx resource group. The first UE performs sidelink reception from the second UE by using an Rx resource pool which belongs to the plurality of Rx resource groups.

In the present invention, a user equipment (UE) transmits a SI request (SIR) medium access control (MAC) control element (CE) for requesting one or more SIs. The UE receives the requested one or more SIs on a cell. The SIR MAC CE includes information indicating which SI among a plurality SIs used in the RAT system the UE requests.

A user equipment configures multiple physical downlinnk control channel (PDCCH) reception opportunities per PDCCH subframe. The UE monitors a PDCCH in each PDCCH reception opportunity if a counter does not reach a maximum value for the counter. The UE increases the counter by one every PDCCH reception opportunity, wherein the UE increase the counter by more than one in a PDCCH subframe.

A mechanism to enable multiple message threads management in the context of the Converged IP Messaging (CPM) service and in the context of CPM inter-working with SMS is provided. A CPM user can simply start a message-based conversation with another CPM or Short Message Service (SMS) user without explicitly establishing a session beforehand. All messages that belong to a given conversation are displayed in the corresponding conversational view (i.e. window) in the CPM user device, even if the conversation is stopped and restarted at a later time, and even if there are multiple message threads available (currently active or stored) in the CPM device. Message structures and behavior of the CPM system elements to enable the functionalities above as well as a mechanism makes the message threads management possible even between a CPM user and an SMS user are also provided.

The data processing method reversibly processing data information input to a data processing device by a processing unit including a data volume reducing unit reducing a data volume of the data information, and a developing unit reconstructing data information reduced in the data volume reducing unit. The processing unit is structured by overlaying processing layers formed of a plurality of cells. The data volume reducing unit performs unit processing on each of the plurality of cells having the data information. The unit processing performs identification processing by a weight according to equivalence and distance of data from a cell group adjacent to the cells, and reduces the cells by each of the processing layers in an order from a lower layer to an upper layer of the processing layers until a data position existing on a time axis of the cells stops to thereby reduces the data volume.

In the present invention, when a UE transmits a random access preamble, the UE maintains a power ramping counter used for determination of a transmission power equally to a value of previous transmission without incrementing the power ramping counter if a target synchronization signal block is changed differently from a previous random access preamble transmission.

In the present invention, a transmitting device receives, at a packet data convergence protocol (PDCP) layer, a PDCP service data unit (SDU) from an upper layer. The transmitting device generates, at the PDCP layer, a PDCP protocol data unit (PDU) containing the PDCP SDU. The transmitting device submits, at the PDCP layer, the PDCP PDU to a lower layer. If the PDCP SDU includes a transmission control protocol (TCP) ACK packet, the PDCP layer generates a PDCP control PDU as the PDCP PDU.

A radio link control (RLC) entity can be used for multiple radio bearers (RBs). In other words, one RLC entity can be associated with multiple packet data convergence protocol (PDCP) entities, where the multiple PDCP entities are associated with the multiple RBs, respectively. An identifier of a PDCP or RB can be provided with a PDCP PDU in order to inform the RLC entity or a receiving device which RB or which PDCP entity the PDCP PDU is associated with. The RLC entity shared by more than one RB can be configured according to configuration information for RB(s).

In a wireless communication system, a transmission device inputs, in some of N input bit positions of a polar code having the size N, input bits including D-bit information and X-bit user equipment (UE) ID according to a predetermined bit allocation sequence. The transmission device encodes the input bits by using the polar code. The transmission device transmits an encoded output sequence.

In the present invention, a user equipment (UE) receives a paging message while using a paging discontinuous reception (DRX). The UE transitions from the paging DRX with a paging DRX cycle to an inactive DRX with an inactive DRX cycle if the paging message includes an indication that there is downlink data for the UE. The UE monitors a physical downlink control channel (PDCCH) using the inactive DRX to receive the downlink data.