187results about "Spectral gaps assessment" patented technology

Embodiments of the present disclosure relate to method, device and computer readable media for communications. A first device performs a first type LBT procedure in unlicensed band. In response to a successful performing of the first type LBT procedure, the first device transmits, to a second device, a first sidelink positioning reference signal (PRS) sequence in the unlicensed band for ranging between the first device and the second device, and / or for positioning of the first device. The first sidelink PRS sequence is associated with the first type LBT procedure and / or a second type LBT procedure to be performed by the second device for transmitting a second sidelink PRS sequence in the unlicensed band to the first device for the ranging or the positioning.

Provided is a terminal for performing transmission and reception of data in a wireless communication system, wherein the terminal receives, from a base station, first configuration information for code block group (CBG)-based uplink transmission, and second configuration information including a downlink feedback information (DFI) bitmap configuration method, transmits a CBG-based uplink signal to the base station, based on the first configuration information, receives, from the base station, DFI including feedback information about the CBG-based uplink signal, based on the second configuration information, and determines a contention window value of the terminal, based on the feedback information included in the received DFI, wherein the DFI bitmap configuration method indicates whether the feedback information is for feedback in units of transport blocks (TBs) or for feedback for one or more CBGs.

A wireless device receives, from a base station, one or more messages indicating a transmission configuration indicator (TCI) indication type among a first TCI indication type and a second TCI indication type. The first TCI indication type indicates one or more first TCI states are for downlink receptions and one or more second TCI states are for uplink transmissions. The second TCI indication type indicates one or more third TCI states are for both uplink transmissions and downlink receptions. The wireless device receives a first downlink control information (DCI) comprising a TCI field indicating a TCI state, of the one or more third TCI states, applicable to both uplink transmissions and downlink receptions. The wireless device receives downlink receptions based on the TCI state. The wireless device transmits uplink transmissions based on the TCI state.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a base station may communicate using demodulation reference signal enhancements for control channel repetitions. The UE and the base station may identify a configuration to use to receive or transmit a set of repetitions of control information on a downlink control channel, each repetition of the set of repetitions including one or more symbol periods for an instance of the repeated control information. The base station may transmit, and the UE may receive, a first set of demodulation reference signals in accordance with a first set of parameter values, a second set of demodulation reference signals in accordance with a second set of parameter values, and instances of the control information during the set of repetitions. The UE may decode the control information based on the received signals and configuration.

A method for HARQ feedback, a terminal, and a network device are provided. The method includes: obtaining DCI in a GC-PDCCH; and feeding back HARQ acknowledgement information according to the DCI.

Methods and apparatuses for a sidelink (SL) positioning reference signal (PRS) signaling structure in a wireless communication system. A method of operating a user equipment (UE) includes transmitting, to another UE, a first SL PRS and a first SL control information associated with the first SL PRS and receiving, from the other UE, a second SL control information associated with a second SL PRS. The method further includes determining, based on the second SL control information, resources for the second SL PRS and receiving the second SL PRS on the determined resources.

Techniques discussed herein can facilitate multi-slot sidelink transmissions in the unlicensed spectrum. One example aspect is a baseband processor of a user equipment (UE), comprising a memory and one or more processors configured to, when executing instructions stored in the memory, cause the UE to determine a resource block (RB) set configuration for a multi-slot sidelink transmission with n slots. The one or more processors are further configured to determine a sidelink control information (SCI) configuration, based on the RB set configuration and generate SCI for the multi-slot sidelink transmission based on the SCI configuration. The SCI configuration includes a first stage SCI in a physical sidelink control channel (PSCCH) and a second stage SCI in a physical sidelink shared channel (PSSCH). Subsequently, the one or more processors are further configured to transmit the multi-slot sidelink transmission over the n slots where the multi-slot sidelink transmission includes the PSCCH and the PSSCH.

Various aspects of the present disclosure relate to receiving (1102) a configuration that indicates a plurality of carriers for sidelink (SL) communication and tracking (1104) a number of consecutive discontinuous transmission (DTX) instances for each SL carrier of the plurality of carriers. Aspects of the present disclosure may relate to determining (1106) a carrier failure condition for a respective SL carrier based at least in part on a tracked number of consecutive DTX instances satisfying a threshold and transmitting (1108) a notification to a base station, the notification indicating the carrier failure condition for the respective SL carrier.

The present invention provides a terminal that can carry out a random-access process appropriately. A terminal (100) is provided with: a wireless transmission unit (108) that transmits a data signal; and a control unit (101) that determines a second resource for use in transmitting the data signal on the basis of a first resource for use in transmitting a preamble signal.

Embodiments include methods for a user equipment (UE) configured for dual connectivity (DC) with a wireless network via a first node arranged to provide a first cell group and a second node arranged to provide a second cell group. Such methods include receiving a first medium access control (MAC) message from the first node by a first UE MAC entity associated with the first cell group, and determining that the first MAC message includes an encapsulated second MAC message for a second UE MAC entity associated with the second cell group, which is deactivated. Such methods also include performing one or more operations related to the second cell group based on the second MAC message. Other embodiments include complementary methods for the first node and the second node, as well as UE and network node apparatus configured to perform such methods.

Provided is a radio communication device capable of reducing interference, caused by non-SR transmission, with a basic service set (BSS) performing spatial reuse (SR) transmission. An SR transmission resource control unit (107) of the radio communication device (SR initiator) (100) determines transmission resources for an SR signal to be transmitted by means of SR to a second BSS other than a first BSS to which the radio communication device (100) belongs on the basis of radio quality information transmitted from other radio communication devices (SR responders) in the first BSS. A radio transmission / reception unit (101) transmits the SR signal by using the determined transmission resources.

To provide an integrated circuit that executes improved procedures for monitoring a downlink control channel.SOLUTION: User equipment (UE) comprises processing circuitry which operates a function that involves monitoring of a downlink control channel of an unlicensed radio cell for information intended for the UE. The radio cell operating in an unlicensed spectrum is controlled by a base station. The processing circuitry and a receiver perform the monitoring of the downlink control channel based on a first timer and a second timer operated in parallel. The first timer is used to limit the maximum time when the downlink control channel is to be monitored, by starting the first timer at the beginning of the monitoring and stopping the monitoring upon expiry of the timer. The second timer is used to stop the monitoring earlier than the first timer depending on the channel occupation status of the unlicensed spectrum by the base station.SELECTED DRAWING: Figure 11

Provided are a method for a first device to communicate wirelessly and a device for supporting same. The method may comprise the steps of: acquiring information related to a plurality of cyclic prefix extension (CPE) starting candidate positions; selecting a CPE starting position from among the plurality of CPE starting candidate positions on the basis of the priority of sidelink (SL) transmission; and transmitting SL on the basis of the CPE starting position.

A user equipment (UE) comprises processing circuitry which operates a function that involves monitoring of a downlink control channel of an unlicensed radio cell for information intended to the UE. The unlicensed radio cell operates in an unlicensed spectrum and is controlled by a base station. The processing circuitry and a receiver perform the monitoring of the downlink control channel based on a first timer and a second timer operated in parallel. The first timer is used to limit the maximum time the downlink control channel is to be monitored, by starting the first timer at the beginning of the monitoring and stopping the monitoring upon expiry of the first timer. The second timer is used to stop the monitoring earlier than the first timer depending on the channel occupation status of the unlicensed spectrum by the base station.

This application provides a wireless communication method and apparatus. The method includes: determining N first symbols in a first slot, where N is a positive real number greater than 1 and less than M, M is a quantity of symbols included in the first slot, M is a positive integer, a frequency domain resource corresponding to the first slot is an unlicensed spectrum, and the first symbols are unoccupied symbols in the first slot; and sending a first signal to a terminal device on the N first symbols. The first signal includes at least one of the following: a symbol copied from a second slot, a to-be-sent first transport block, or a cyclic prefix extension. The second slot is a next slot of the first slot. According to the disclosure, a channel resource in an unlicensed spectrum can be effectively occupied, thereby reducing waste of channel resources.

Aspects of the disclosure relate to transmitting a partial frequency sounding configuration to a user equipment (UE) using enhanced downlink control information. A UE can receive, in a downlink control information, a partial frequency sounding configuration generated for the UE, transmit a sounding reference signal (SRS) in one or more resources configured for SRS transmission in a bandwidth used by the UE, the one or more resources identified by the partial frequency sounding configuration, and refrain from transmitting in a portion of a set of resources configured for SRS transmission in the bandwidth used by the UE. A format for the enhanced downlink control information can be based on a standard that defines downlink control information formats.

To enable communication connection with an appropriate external device in a communication device capable of communicating with the external device by a plurality of links using a plurality of frequency bands.SOLUTION: A communication device capable of performing multi-link communication using a plurality of links having different frequency bands receives one or more frames transmitted from each of a plurality of external devices via one or more links, and determines an external device that is a transmission source of the one or more frames based on a parameter included in each of the one or more frames. When two or more frames are received from one external device via two or more different links, the communication device determines that transmission sources of the two or more frames are the one external device, and determines a priority order of communication connections of the plurality of external devices based on communication states of the frames whose transmission sources are determined to be the same external device.SELECTED DRAWING: Figure 3

A base station configures a physical uplink control channel (PUCCH) for a user equipment (UE) operating in a frequency band above 52.6 GHz. The base station allocates a predetermined number of resource blocks (RBs) for a physical uplink control channel (PUCCH) transmission, wherein the predetermined number of RBs is greater than one RB, transmits a PUCCH configuration including the predetermined number of RBs to the UE and receives a PUCCH transmission based on the PUCCH configuration and including a data sequence and a DMRS sequence, wherein the PUCCH configuration results in a multiplexing of a plurality of UEs based on a plurality of demodulated reference signal (DMRS) sequences.

A method and a device for receiving transmitting data in in a wireless local area network are provided. The device receives a physical layer protocol data unit (PPDU) from a station over a transmission bandwidth and determines whether the station is a member of a basic service set (BSS) managed by the device based on the PPDU. When the PPDU is a multi-user (MU)-PPDU, the AP determines that the station is not a member of the BSS managed by the AP. Such MU-PPDU includes a first signal field and a second signal field, the first signal field having bandwidth information indicating the transmission bandwidth, the second signal field having user-specific information with allocation for orthogonal frequency division multiple access (OFDMA) transmission.

Various aspects of the disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) can detect, at a time instance of an expected reference signal, whether the reference signal is present in a channel. The UE can selectively perform gating processing of the reference signal based on detecting whether the reference signal is present in the channel. Numerous other aspects are described.

The base station includes: control circuitry that decides a configuration method of a downlink control channel signal for at least one of a first period before a carrier sensing-based occasion and a second period after the carrier sensing-based occasion, based on information related to at least one of a number of blind decodes for the downlink control channel signal and a number of resources for channel estimation; and transmission circuitry that transmits the downlink control channel signal based on the decided configuration method.

Examples are described for a device to collaborate in an unlicensed band in mobile communications. A first communication device may receive a configuration message including a first uplink transmission configuration and a second uplink transmission configuration for signal transmission in at least a first frequency band. The first uplink transmission configuration and the second uplink transmission configuration indicate transmission parameters. The first communication device may transmit a first set of coded bits to the network node over the first frequency band and transmit a second set of coded bits to the second communication device over an unlicensed frequency band, the second set of encoded bits is configured to be transmitted to the network node over the first frequency band based on the first uplink transmission configuration by the second communication device upon determining that transmission in an unlicensed frequency band between the first communication device and a second communication device in the vicinity of the first communication device is available.

The invention discloses a sensing information sending method and device, a sensing information receiving method and device, equipment and a storage medium, and relates to the technical field of communication. The method comprises: a first node sending perception information, the perception information being obtained based on a perception signal satisfying a quality requirement (410). By constraining the quality requirement of the sensing signal, the sensing node sends the sensing information obtained based on the sensing signal meeting the quality requirement, and the sensing signal not meeting the quality requirement can not be processed and fed back. On one hand, the quality requirement of the sensing signal is constrained, so that the accuracy and the effectiveness of the feedback sensing information can be improved; and on the other hand, the sensing signals which do not meet the quality requirement do not need to be processed and fed back, so that the processing complexity and the energy consumption of the sensing nodes can be reduced, the feedback quantity can be reduced, the transmission resources can be saved, and the transmission efficiency of the sensing information can be improved.

This disclosure describes the following enhancement to improve the PDCCH reliability: PDCCH aggregation and multi-beam PDCCH reception for a 5G wireless communication system. The disclosed techniques entail obtaining repeated PDCCH by processing a PDCCH-Config, ControlResourceSet, or SearchSpace configuration parameter including an information element (IE) indicating a number of consecutive slots in which the PDCCH is repeated. In another embodiment, a gNB generates the PDCCH-Config, ControlResourceSet, or SearchSpace configuration parameter for configuring a UE to receive the repeated PDCCH and employ the multi-beam PDCCH reception.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an apparatus may determine an energy threshold based on a normalized energy threshold and an amplitude sequence length, the normalized energy threshold being based on an amplitude alphabet and a distribution parameter. The apparatus may encode a plurality of information bits into a symbol sequence with amplitude shaping, the encoding being based on the energy threshold, the amplitude alphabet, and the amplitude sequence length. The apparatus may transmit the symbol sequence encoded with amplitude shaping, the symbol sequence having a length equal to the amplitude sequence length and each symbol, of the symbol sequence, corresponding to an entry in the amplitude alphabet. Numerous other aspects are provided.

A wireless communication method and a terminal device. A first terminal can send feedback information on a plurality of PRBs of an unlicensed frequency band, so that the feedback information occupies a certain proportion of channel bandwidth in a frequency domain to ensure the normal transmission of the feedback information, and realize the use of sidelink communication in the unlicensed frequency band.

The present application relates to a data sending method and a terminal device. The data sending method is applied to a terminal device, and comprises: a terminal device sending placeholder data in a protection gap of a time slot, wherein an idle duration of the protection gap is less than or equal to a target interception duration. In the embodiments of the present application, placeholder data is sent in a protection gap of a time slot, so that a protection gap duration can be reduced, the probability of preempting transmission resources by other terminal devices is decreased, and the preemption of transmission resources by other terminal devices can even be completely avoided.

A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE performs a first transmission without Listen Before Talk (LBT), wherein the first transmission is a preamble transmission. The UE performs LBT for a second transmission for a signal other than preamble.

Methods, systems, and devices for wireless communications are described. A base station may transmit to a user equip-ment (UE) a control signal comprising a grant for a downlink transmission. The base station may perform, during a gap between the control signal and the downlink transmission, a clear channel assessment (CCA) procedure on a shared radio frequency spectrum band associated with the downlink transmission. The base station may perform, based at least in part on a success of the CCA procedure, the downlink transmission to the UE over the shared radio frequency spectrum band.

There is disclosed a method of operating a wireless device in a wireless communication network, the wireless device being adapted for wireless communication, and being adapted for sensing and / or radar operation, the method comprising performing at least one sensing operation based on sensing resources allocated by a network node. The disclosure also pertains to related devices and methods.