564results about "Spectral gaps assessment" patented technology

A method, a user equipment (UE), and a base station for a sidelink operation in unlicensed bands are provided. A UE receives an RRC message, receives a PSSCH in an unlicensed channel, and attempts to transmit a feedback message in a first PSFCH in response to receiving the PSSCH. In a case that the first channel access procedure is not successful, the UE further attempts to transmit the feedback message in a second PSFCH. The RRC message includes a minimum gap between the earliest slot of multiple logical slots of the PSFCHs and a logical slot of the PSSCH, and the logical slots of PSFCHs are assigned for the PSSCH. The UE performs a first channel access procedure in the unlicensed channel before the first PSFCH. The UE performs a second channel access procedure in the unlicensed channel before the second PSFCH.

Embodiments of this application disclose a data transmission method and a communication device, to improve channel bandwidth utilization and data transmission efficiency. The data transmission method provided in embodiments of this application includes: performing clear channel assessment on an existing wireless fidelity Wi-Fi channel to obtain a channel assessment result; determining a target channel based on the channel assessment result, where a bandwidth of the target channel is greater than 80 megahertz MHz, and the bandwidth of the target channel is not a bandwidth of the existing Wi-Fi channel; and sending data to a receiving end through the target channel, or receiving data from a transmitting end through the target channel.

Systems, methods, and apparatus are provided for automated identification of baseline data and changes in state in a wireless communications spectrum, by identifying sources of signal emission in the spectrum by automatically detecting signals, analyzing signals, comparing signal data to historical and reference data, creating corresponding signal profiles, and determining information about the baseline data and changes in state based upon the measured and analyzed data in near real time, which is stored on each apparatus or device and / or on a remote server computer that aggregates data from each apparatus or device.

Apparatus and methods for identifying a wireless signal-emitting device are disclosed. The apparatus is configured to sense and measure wireless communication signals from signal-emitting devices in a spectrum. The apparatus is operable to automatically detect a signal of interest from the wireless signal-emitting device and create a signal profile of the signal of interest; compare the signal profile with stored device signal profiles for identification of the wireless signal-emitting device; and calculate signal degradation data for the signal of interest based on information associated with the signal of interest in a static database including noise figure parameters of a wireless signal-emitting device outputting the signal of interest. The signal profile of the signal of interest, profile comparison result, and signal degradation data are stored in the apparatus.

A wireless device receives configuration parameters indicating: a sidelink resource pool of a sidelink bandwidth part configured in a shared spectrum, one or more resource blocks for a physical sidelink feedback channel transmission via the sidelink resource pool, and a first common interlace index, among a plurality of common interlace indexes, configured for the PSFCH transmission via the sidelink resource pool. The wireless device determines multiple common RBs of a first common interlace corresponding to the first common interlace index. An index of each of the multiple common RBs is based on: an interlaced RB index corresponding to the first common interlace index, and a first common RB index indicating a starting RB of the sidelink BWP. The wireless device transmits, during a PSFCH slot, one or more sidelink transmissions via at least one RB of the one or more RBs, and via the multiple common RBs.

The disclosure relates to a method and apparatus by which a transmission terminal allocates resources in a vehicle-to-everything (V2X) system. An operating method of a terminal in a wireless communication system may include identifying a first candidate resource set for sidelink communication in a first resource selection window, through sensing based on first sidelink control information (SCI) received in a first sensing window, identifying a second candidate resource set for sidelink communication in a second resource selection window, through sensing based on second SCI received in a second sensing window, determining, based on the second SCI, whether to perform pre-emption or re-evaluation for a first resource, and when it is determined to perform the pre-emption or the re-evaluation for the first resource, triggering re-selection of resources for sidelink communication, and reporting the first resource for which the pre-emption or the re-evaluation has been performed, and the second candidate resource set to a higher layer of the terminal.

Disclosed are systems and techniques for wireless joint communications and sensing. For example, a network device can receive, from a network entity, at least one configuration signal indicating at least one configuration comprising a resource for a physical uplink control channel (PUCCH) and for sensing. The network device can output, for transmission to the network entity, the PUCCH based on the at least one configuration comprising the resource. The network device can transmit a sensing signal based on the at least one configuration comprising the resource.

A wireless device receives, from a base station, one or more radio resource control (RRC) messages comprising a unified transmission configuration indicator (TCI) state type parameter, for a cell, that indicates a unified TCI state type among a separate TCI state type and a joint TCI state type. The separate TCI state type indicates one or more first TCI states are for downlink receptions via the cell and one or more second TCI states are for uplink transmissions via the cell. The joint TCI state type indicates one or more third TCI states are for both the downlink receptions and the uplink transmissions via the cell. The wireless device communicates, with the base station and via the cell, based on the unified TCI state type.

The invention belongs to the technical field of radio electronics and signal processing, and particularly relates to a color noise environment signal frequency domain detection method and system based on spectrum envelope extraction, and the system comprises a signal acquisition unit, a signal conversion unit, a signal judgment unit and a signal output unit. The method is a research summary of a color noise environment signal frequency domain detection algorithm based on spectrum envelope extraction, and the algorithm is used for blind signal detection under the conditions of uneven noise spectrum and broadband reception, has good robustness, can be used for low signal-to-noise ratio occasions, and is high in signal detection accuracy.

Methods performed by a wireless device and a base station for adapting maximum allowed Clear Channel Assessment (CCA) based on operational occasion periodicity are provided. In examples disclosed herein, a wireless device is configured to determine an operational occasion periodicity of a signal that is subject to CCA. Accordingly, the wireless device can determine an association at least between the determined operational occasion periodicity and a maximum number of allowed CCA failures for communicating the signal. The wireless device can then perform one or more operational tasks based on the determined maximum number of allowed CCA failures. By determining the maximum number of allowed CCA failures, the wireless device can obtain information about downlink CCA failures and use the obtained information for adapting measurements procedures in serving cell operational tasks.

The present disclosure provides a method of transmitting a physical sidelink feedback channel (PSFCH) by a terminal in a wireless communication system. In particular, the method may comprise: receiving a physical sidelink control channel (PSCCH); receiving a first physical sidelink shared channel (PSSCH) on the basis of the PSCCH; performing listen before talk (LBT) for an LBT gap; and transmitting a PSFCH corresponding to the first PSSCH on the basis that the LBT has been successful, wherein the LBT gap is positioned immediately before the foremost symbol among symbols for the PSFCH, and transmission of a second PSSCH may continue to the LBT gap from a symbol immediately after the last symbol among symbols for the second PSSCH having been transmitted by the terminal before the PSFCH.

There is disclosed a method of operating a wireless device in a wireless communication 2375 network, the wireless device being adapted for wireless communication, and being adapted for sensing and / or radar operation, the method comprising adapting sensing operation based on communication operation, and / or vice versa. The disclosure also pertains to related devices and methods.

A method of configuring a sidelink resource pool to a user equipment (UE) in a wireless communication system may include receiving, by the UE, resource pool configuration information based on higher layer signaling from a base station; transmitting sidelink control information to another UE based on resource pool configuration information; and performing sidelink communication with the other UE, and resource pool configuration information may be information based on sidelink resource pool configuration of an unlicensed band.

Embodiments herein disclose e.g. a method performed by a wireless device (10) for handling communication for the wireless device in a second wireless communication network. The second wireless communication network coexists with a first wireless communication network on a same bandwidth in frequency, wherein the first wireless communication network applies a first shift in frequency in uplink transmissions. The wireless device receives from a radio network node (12, 13), an indication indicating application of a second shift in frequency to uplink transmissions in case the second wireless communication network uses Frequency Division Duplex (FDD). The wireless device further applies the second shift in frequency to uplink transmissions, wherein the second shift defines a shift in frequency to a subcarrier relative to a subcarrier grid of the second wireless communication network or a shift in frequency to the subcarrier grid of the second wireless communication network.

A first terminal determines a first resource used to send a sensing signal; and sends the sensing signal to at least one second terminal by using the first resource, sends the sensing signal to both a network device and the at least one second terminal by using the first resource, or separately sends sensing signals to the at least one second terminal and the network device by using the first resource and a second resource, where the second resource is a resource used to send the sensing signal, and the first resource and / or the second resource are / is some resource units in a first resource set, where the first resource set includes resources used to send uplink information.

A method for a wireless device of a wireless communication system is described herein. In accordance with one embodiment, the method includes receiving - by the wireless device from a base station - one or more radio resource control (RRC) messages indicating a transmission configuration indicator (TCI) indication type among a first TCI indication type and second TCI indication type, wherein: the first TCI indication type indicates one or more first TCI states are for downlink receptions via a cell and one or more second TCI states are for uplink transmissions via the cell, and the second TCI indication type indicates one or more third TCI states are for both downlink receptions and uplink transmissions via the cell. The method further includes receiving 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; receiving - via the cell - downlink receptions based on the TCI state; and transmitting, via the cell, uplink transmissions based on the TCI state. Moreover, a respective wireless device as well as related apparatuses, devices and methods are described.

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.

Embodiments of the present disclosure relate to a method and apparatus of data transmission in a wireless communication system and a method and apparatus of receiving data in a wireless communication system. The method of data reception comprises transmitting a request for the RRC message to the network node based on default transmission parameters; and receiving the RRC message from the network node at a predetermined time unit. With embodiments of the present disclosure, it is possible to request the RRC message when the terminal device need this message and therefore the RRC message transmission can be reduced and in turn, the inter-node interference can be limited, and the number of LBTs required for these signal transmissions can be reduced if they are transmitted on unlicensed spectrum.

To make it possible to suppress an increase in transmission standby time.SOLUTION: A wireless communication unit capable of wireless communication in a plurality of frequency bands is controlled to transmit a control signal in a second frequency band in which transmission is possible, the control signal being for wireless communication in a first frequency band. In addition, a wireless communication unit capable of wireless communication in a plurality of frequency bands is controlled to receive the control signal in the second frequency band in which reception is possible, the control signal being for wireless communication in the first frequency band. The present disclosure can be applied, for example, to wireless communication devices, electronic devices, wireless communication methods, programs, and the like.SELECTED DRAWING: Figure 6

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.

The embodiment of the present application discloses a communication method and a related device, the method comprising: a terminal device receives first indication information sent by a network device; when the first indication information indicates the channel occupation time of the network device, if the network device configures the corresponding downlink resource (for example, downlink transmission beam or service cell) for the terminal device, the terminal device performs downlink measurement and / or receives downlink data during the channel occupation time; when the first indication information indicates the channel non-occupied time of the network device, the terminal device does not perform downlink measurement, does not receive downlink data, does not send HARQ feedback corresponding to the downlink data, or determines that the downlink measurement result is invalid during the channel non-occupied time. By adopting the embodiment of the present application, unnecessary measurements can be reduced, downlink measurement failures caused by the failure of the network side to grab the channel can be eliminated, and the measurement efficiency and the accuracy of the measurement results can be improved.

A method of configuring a sidelink resource pool to a user equipment (UE) in a wireless communication system may include receiving, by the UE, resource pool configuration information based on higher layer signaling from a base station; transmitting sidelink control information to another UE based on resource pool configuration information; and performing sidelink communication with the other UE, and resource pool configuration information may be information based on sidelink resource pool configuration of an unlicensed band.

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.

A method for wireless communication between at a base station and a user equipment is provided that accommodates multiple data streams of varying traffic characteristics. The base station may configure semi-persistent scheduling (SPS) occasions having a particular periodicity. Each SPS occasion having multiple slots associated with multiple physical downlink shared channels (PDSCH). A message is transmitted to a user equipment (UE) indicating the SPS occasions. Subsequently, the base station transmits data to the UE over the multiple PDSCH during the indicated SPS occasions. The base station can dynamically adjust the number of PDSCH for an SPS occasion, wherein different number of PDSCH are used in two sequential SPS occasions. Also, the PDSCH in a same SPS occasion may use at least one of: different encoding schemes or different modulation schemes.

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.

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.

A method for receiving a signal by a wireless communication device according to an embodiment of the present invention may comprise: monitoring candidates of a control channel in a BWP on the basis of a control channel search space set (SS) configuration and a CORESET configuration; and acquiring control information from the control channel detected as a result of the monitoring of the candidates, wherein: a control channel SS configured on the basis of the control channel SS configuration is associated with a CORESET configured on the basis of the CORESET configuration; the BWP includes one sub-band (SB) or two or more SBs; and in order to monitor the candidates, the wireless communication device configures each CORESET frequency resource area of each SB in the BWP on the basis of a CORESET frequency resource area of one specific SB in the BWP.