451 results about "Licensed spectrum" patented technology

The disclosure provides, inter alia, a method performed by a first user equipment (UE). The method comprises: determining resources in unlicensed spectrum on which to transmit to one or more second UEs over a sidelink connection; and using the determined resources to initiate a transmission within a channel occupancy time for the transmission.

Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for generating and using slot format indicator (SFI) and channel occupancy time (COT) structure in new radio (NR) systems operating on unlicensed spectrum. For example, some embodiments are directed to a base station that includes radio front end circuitry and processor circuitry. The processor circuitry can be configured to generate a slot format indicator (SFI) associated with a channel occupancy time (COT) structure. The SFI indicates whether one or more slots associated with the COT structure are to be used for downlink (DL) symbols, uplink (UL) symbols, or flexible symbols. The flexible symbols form one or more gaps in the COT structure in response to the flexible symbols not being overridden as a DL transmission or a UL transmission. The processor circuitry can further be configured to transmit the SFI to a user equipment (UE).

Aspects of the subject disclosure may include, for example, determining, by a wireless router or a wireless access point (WAP) associated with a fixed network connection, that a network condition is satisfied, based on the determining that the network condition is satisfied, detecting for available networks operating in licensed spectrum and available networks operating in unlicensed spectrum, responsive to the detecting, identifying a first available network operating in licensed spectrum and a second available network operating in unlicensed spectrum, and aggregating, in one or more link aggregation groups, a first connection established with the first available network and a second connection established with the second available network, thereby augmenting a network capacity of the fixed network connection. Other embodiments are disclosed.

Apparatuses, methods, and systems are disclosed for unlicensed spectrum access in integrated access and backhaul. An apparatus (800) includes a processor (805) and a memory (810) coupled to the processor (805). The processor (805) is configured to sense a shared medium by using a first entity of the apparatus (800). The processor (805) is configured to transmit, using the first entity of the apparatus (800), a first plurality of signals for a first duration and over the shared medium in response to the sensed shared medium being in an idle state. The processor (805) is configured to transmit, based at least in part on a second entity of the apparatus (800) being allowed to use the shared medium without sensing the shared medium, a second plurality of signals for a second duration and over the shared medium using the second entity of the apparatus (800).

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may transmit, in a first slot within a channel occupancy time (COT), a first communication; determine whether one or more transmission criteria are satisfied for transmission of a second communication in a second slot within the COT; and selectively transmit the second communication in the second slot within the COT based at least in part on a result of determining whether the one or more transmission criteria are satisfied. Numerous other aspects are provided.

Aspects of the subject disclosure may include, for example, determining, by a wireless router or a wireless access point (WAP) associated with a fixed network connection, that a network condition is satisfied, based on the determining that the network condition is satisfied, detecting for available networks operating in licensed spectrum and available networks operating in unlicensed spectrum, responsive to the detecting, identifying a first available network operating in licensed spectrum and a second available network operating in unlicensed spectrum, and aggregating, in one or more link aggregation groups, a first connection established with the first available network and a second connection established with the second available network, thereby augmenting a network capacity of the fixed network connection. Other embodiments are disclosed.

An approach is described for a user equipment (UE) configured for a new radio (NR) system with unlicensed spectrum. The UE includes processor circuitry that performs a first channel load measurement at a first frequency of a serving cell and a second channel load measurement at a second frequency of a neighbor cell and associates a report with the first channel load measurement and the second channel load measurement. At least one of the first frequency and the second frequency is in the unlicensed spectrum. The UE also includes radio front end circuitry that is coupled to the processor circuitry and configured to transmit the report to an access node (AN).

An operation method of a first device (100) in a wireless communication system is proposed. The method may comprise the steps of: selecting at least one first resource; determining whether to select an adjacent resource to the at least one first resource; selecting at least one second resource on the basis of determining to select the adjacent resource; and selecting at least one third resource on the basis of determining not to select the adjacent resource.

This disclosure provides systems, methods, and devices for wireless communication that support multi-channel access with respect to sidelink communication based on user equipment (UE) capability. In a first aspect, a UE providing sidelink transmission may implement sidelink unlicensed spectrum (SL-U) operation in which a multi-channel access procedure facilitates simultaneous access with respect to a plurality of different channel bandwidths in the unlicensed spectrum. Implementation of a particular SL-U multi-channel access procedure and / or UE capability independent from UE capability for multiple simultaneous transmissions. SL-U multi-channel access may facilitate transmission of a single sidelink channel over multiple channel bandwidths within a slot and / or transmission of multiple sidelink channels over multiple channel bandwidths within a slot. Other aspects and features are also claimed and described.

The exemplary embodiments relate to determining that code block group (CBG) based transmissions are enabled, transmitting, via an unlicensed spectrum, configured grants comprising one or more CBG based transmissions and one or more transport block (TB) based transmissions and receiving a downlink feedback information (DFI) downlink control information (DCI) format, wherein the DFI DCI format comprises a hybrid automatic repeating request (HARQ) bitmap corresponding to the TB based transmissions and a HARQ bitmap corresponding to the CBG based transmissions. The exemplary embodiments may be implemented in a computer readable storage medium, a user equipment (UE) or an integrated circuit.

Embodiments of the present disclosure relate to methods and apparatuses for sidelink synchronization signal block (S-SSB) transmission in an unlicensed spectrum. According to an embodiment of the present disclosure, a user equipment (UE) can include: a processor configured to: obtain configuration information for S-SSB in an unlicensed spectrum based on configuration or pre-configuration, wherein the configuration information includes at least one of the following: a first configuration associated with a time interval between adjacent S-SSB occasions sharing a same channel occupancy time (COT); a second configuration for performing listen before talk (LBT) type 2; or a third configuration for performing LBT type 1; and perform an LBT procedure associated with an S-SSB occasion based on the configuration information; a transmitter coupled to the processor and configured to transmit an S-SSB on the S-SSB occasion in response to the LBT procedure being successful; and a receiver coupled to the processor.

The present disclosure relates to methods and apparatuses for sidelink synchronization signal block (S-SSB) transmission in an unlicensed spectrum. One embodiment of the present disclosure provides a UE, comprising: a transceiver; and a processor coupled with the transceiver and configured to: obtain a first configuration for S-SSB in an unlicensed spectrum based on configuration or pre-configuration, wherein the first configuration for S-SSB is associated with a slot format including at least one S-SSB, and wherein at least one sidelink synchronization signal (SLSS) is multiplexed with at least one physical sidelink broadcast channel (PSBCH) in a frequency domain in at least one symbol of the at least one S-SSB; select at least one S-SSB occasion at least based on the first configuration; and transmit, with the transceiver, an S-SSB on the at least one S-SSB occasion in response to a LBT procedure associated with the at least one S-SSB occasion being successful.

Methods, systems, and devices for wireless communications are described. For example, devices of a wireless communications system may be configured to support various techniques for sidelink communications using an unlicensed spectrum, where such sidelink communications are coordinated at least in part by a network device, such as a base station or entity thereof. In some examples, a base station may determine to offload some sidelink communications to the unlicensed spectrum, which may be based on capability information, system channel loading, application priority, periodicity, or quality of service, among other criteria or combinations thereof. Based on such a determination to offload sidelink communications to the unlicensed spectrum, the base station may transmit an indication for one or more user equipments (UEs) to attempt to perform sidelink communications using the unlicensed spectrum (e.g., based on an evaluation of an availability of the unlicensed spectrum by a UE initiating sidelink transmissions).

An indication method is performed by a first user equipment (UE), and includes: receiving at least one sidelink (SL) transmission resource for SL transmission on an unlicensed spectrum scheduled by a network device; performing listen-before-talk (LBT) on the SL transmission resource; and sending indication information to the network device based on a performing result of the LBT, wherein the indication information is configured to indicate whether the first UE performs the SL transmission on the SL transmission resource.

Systems, methods, and circuitries are provided for a UE performing sidelink (SL) communication in unlicensed spectrum to update contention window size (CWS). In one example, a method includes, during a sidelink (SL) channel occupancy time (COT), transmitting one or more physical sidelink shared channels (PSSCHs) transmissions to one or more respective receiving (RX) UEs according. Each PSSCH includes one or more transport blocks (TBs) and is associated with a channel access priority class (CAPC). The UE updates the CWS for the CAPC based on feedback received with respect to the one or more PSSCHs associated with the CAPC and transmits subsequent PSSCH associated with the CAPC based on the updated CWS.

Embodiments of the present disclosure relate to methods and apparatuses for a cluster-based sidelink transmission(s) over an unlicensed spectrum. According to some embodiments of the disclosure, a UE may: receive data transmission on a PSSCH on a carrier; determine a first Type-1 interlace from a first set of Type-1 interlaces for transmitting a PSFCH carrying HARQ-ACK feedback corresponding to the data transmission, wherein each of the first set of Type-1 interlaces has a frequency span exceeding a predefined percentage of a frequency bandwidth of the carrier; and transmit the PSFCH on the first Type-1 interlace.

Disclosed are methods for allocating spectrum to a plurality of User Equipment (UEs) in a communication network served by a Mobile Satellite Service (MSS) satellite. The method includes receiving, by a first UE of the plurality of UEs, a spectrum usage map comprising one or more licensed frequency bands and one or more unlicensed frequency bands available for use by the first UE, selecting a communication frequency band among the one or more licensed frequency bands and the one or more unlicensed frequency bands, establishing, by the first UE, a communication link with the MSS satellite using the communication frequency band that was selected, and transmitting the spectrum usage map to one or more additional UEs of the plurality of UEs, wherein the additional UEs comprise a second UE. Related wireless electronic devices are also discussed.

According to some embodiments, a method is performed by a wireless device for operation with shared spectrum channel access, wherein a first plurality of fixed frame periods (FFPs) are associated with the wireless device and a second plurality of fixed frame periods (FFPs) are associated with a network node and wherein each FFP comprises an idle period with no transmission and a channel occupancy time (COT) for potential transmission. The method comprises initiating a COT in one of the FFPs of the first plurality of FFPs and upon successful initiation of the COT, transmitting uplink data from the beginning of the COT.

Processes, methods, architectures, apparatuses, systems, apparatuses, and computer program products for unlicensed spectrum operation in massively distributed MIMO. A wireless transmit-receive unit (WTRU) may perform adaptive unlicensed operations and procedures for massively distributed MIMO. The WTRU may be (pre) configured with information about a plurality of TRP / TCIs for unlicensed spectrum operation. The WTRU may determine a degree of channel uncertainty. The WTRU may determine the determined TRP-TCI group and a TRP-TCI set within the TRP-TCI group, and may report the LBT status of the determined TRP-TCI set to the network. After reporting, the WTRU may receive an indication of a scheduling resource for the determined TRP-TCI set, and may receive a PDSCH or PUSCH transmission according to the indicated scheduling resource.

Provided are a method for a first device to perform wireless communication and a device supporting same. The method may comprise the steps of: acquiring configuration information related to a resource pool; triggering resource selection; determining a selection window on the basis of the resource selection being triggered; determining at least one candidate value for the number of slots for multi-slot based transmission on the basis of a channel occupancy time (COT) duration; selecting an N value on the basis of the at least one candidate value; and determining a candidate multi-slot resource in the resource pool in the selection window on the basis of the N value.

Proposed is an operation method of a first device (100) in a wireless communication system. The method may comprise the steps of: acquiring information about a first candidate start symbol and a second candidate start symbol, wherein the first and second start symbols are included in a first slot; acquiring information related to an RB set configured in an SL BWP; and determining, on the basis of the information related to the RB set, whether to use the second candidate start symbol as an AGC symbol.

Apparatuses, methods, and systems are disclosed for increasing the transmission reliability for transmissions of a duplication bearer in a shared or unlicensed spectrum. A UE apparatus for a mobile network (“NW”) includes a transceiver that initiates a listen before talk procedure (“LBT”) on shared spectrum, for transmission of a medium access control (“MAC”) protocol data unit (“PDU”) containing an original packet data convergence protocol (“PDCP”) PDU of a data radio bearer (“DRB”) configured for PDCP duplication, wherein PDCP duplication is deactivated for the DRB. The apparatus includes a processor that determines whether the LBT failed or succeeded and selectively enables PDCP duplication for the DRB in response to determining that the PDCP PDU was not transmitted due to failure of the LBT.

Provided are a method performed by a first device and a device supporting same in a wireless communication system. The method performed by a first device in a wireless communication system comprises the steps of: acquiring configuration information related to a physical sidelink feedback channel (PSFCH); transmitting a first sidelink control indicator (SCI) for scheduling a physical sidelink shared channel (PSSCH) and a second SCI to a second device through a physical sidelink control channel (PSCCH); transmitting data and the second SCI including information indicating a hybrid automatic repeat and request (HARQ) feedback enabled mode to the second device through the PSSCH; and determining a PSFDCH resource related to the PSSCH on the basis of the configuration information.

A method performed by a network node is provided. The method is for handling a Side Link (SL) communication over an unlicensed spectrum between one or more peers. The one or more peers comprises at least a first User Equipment (UE) and a second UE in a wireless communications network. The network node initiates (502) a Channel Occupancy Time (COT) to be used for the SL communication. The COT is a time period for performing SL communication using the unlicensed spectrum. The network node signals (503) an indication of COT parameters to at least one of the one or more peers, enabling at least one of the one or more of the peers, to start the SL communication during the COT.

The present disclosure discloses a method and a device for wireless communications in a UE and a base station. A first node transmits a first signal; and monitors a first-type signaling in a first resource block in a first time window. The first signal is used for determining a first reference signal; the first node assumes a QCL parameter identical to a target reference signal for monitoring the first-type signaling in the first resource block in the first time window; the target reference signal is either the first reference signal or a second reference signal; whether the first time window belongs to a first-type time window is used for determining the target reference signal between the first reference signal and the second reference signal. The method provided above raises the chance of a node being served and resource utilization ratio in Unlicensed Spectrum.

Systems and methods for determining channel raster(s) and synchronization signal raster(s) for New Radio (NR) unlicensed spectrum are disclosed herein. For each of a plurality of data objects an NR channel raster position is determined using Absolute Radio Frequency Channel Number (NR-ARFCN) numbers. For each corresponding NR channel. Global Synchronization Channel Numbers (GSCNs), a number of Physical Resource Blocks (PRBs) based on channel subcarrier spacing (SCS). NR channel raster position placement, channel edges, synchronization signal and physical broadcast channel (SSB) edges, and an SSB raster position are calculated. The plurality of data objects may then be down selected based on e.g., corresponding Long Term Evolution (LTE) channel raster positions and / or entries of a second plurality of data objects calculated for NR channels that use a second SCS.