1027 results about "Resource element" patented technology

According to embodiments, a UE receives, from a network device, a configuration of a sounding reference signals (SRS) resource with 8 antenna ports, a transmission comb configuration for the SRS resource, and a cyclic shift (CS) configuration for the SRS resource. The transmission comb configuration indicates a comb value K. K is one of 2, 4, or 8. The transmission comb configuration further indicates a configured comb offset (k). k is an integer between 0 and K−1. The CS configuration indicates CS positions. The UE maps each port of the 8 antenna ports to corresponding resource elements (REs) in the frequency domain and a corresponding CS. The corresponding REs are a subset of a plurality of REs and on every K-th RE with an offset based on the configured comb offset (k) within an SRS transmission bandwidth. The UE transmits SRSs using the 8 antenna ports based on the mapping.

A technique for controlling a distortion for an interference measurement, IM, by controlling a power in a radio transmission of orthogonal frequency-division multiplexing, OFDM, symbols (408, 410) from a network node (100) to a radio device (120) is described. As to a method aspect of the technique, at least one IM symbol (410) out of the OFDM symbols (408, 410) is transmitted (202) from the network node (100) to the radio device (120). The at least one IM symbol (410) comprises zero power resource elements, ZP RES (412; 414), and zero or more non-zero power resource elements, NZP REs (418), wherein a set (412) of the ZP REs (412; 414) is allocated to the IM at the radio device (120), and wherein the power in subcarriers (402) outside of the set (412) and in each of the at least one IM symbol (410) is less than or equal to a power in the subcarriers (402) outside of the set (412) and in another symbol (408) out of the OFDM symbols (408, 410) other than the at least one IM symbol (410). At least one channel state information, CSI, report is received from the radio device (120), wherein the CSI report is indicative of a result of the IM based on the transmitted (202) at least one IM symbol (410).

The disclosure relates to a 5th generation (5G) or 6th generation (6G) communication system for supporting higher data rates. A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes receiving, from a base station, configuration information including first information one a first sounding reference signal (SRS) resource set and a second SRS resource set, second information associated with an physical uplink shared channel (PUSCH) repeat transmissions, and third information associated with slot configuration, receiving, from the base station, downlink control information (DCI) scheduling a PUSCH, the DCI including a CSI request field triggering aperiodic channel state information (CSI) reporting, and transmitting, to the base station, a first PUSCH associated with the first SRS resource set and a second PUSCH associated with the second SRS resource set, wherein the slot configuration configured based on the third information includes a slot for uplink transmission of the UE, and a subband non-overlapping full duplex (SBFD) slot including a subband for downlink reception of the UE and a subband for the uplink transmission of the UE, and wherein, in case that a number of resource element (RE) allocated to a first repetition of repetitions of the first PUSCH is same with a number of RE allocated to a first repetition of repetitions of the second PUSCH, the aperiodic CSI reporting is multiplexed in the first repetition of the repetitions of the first PUSCH and the first repetition of the repetitions of the second PUSCH, respectively.

A communication device (12) transmits signaling (20) indicating that the communication device (12) is capable of demodulating a data channel (16) using a demodulation reference signal (18) scheduled without a scheduling restriction on a number of resource elements, resource blocks, or resource block groups to which the demodulation reference signal (18) is mapped, e.g., the scheduling restriction restricts the number of resource elements, resource blocks, or resource block groups to which the demodulation reference signal (18) is mapped to being a multiple of a length of a frequency-domain orthogonal cover code applied to the demodulation reference signal (18). Depending on whether the communication device (12) is so capable, the demodulation reference signal (18) is scheduled with or without applying the scheduling restriction.

Methods and apparatuses are provided in which frequency domain (FD) interpolation is performed on wideband reference signal (RS) resource elements (REs) to generate channel estimates on corresponding RS symbols. Denoising may be performed on the channel estimates in a time domain (TD) or a delay-Doppler domain (DD). Learning-based channel estimation (LCE) is applied on the channel estimates using a neural network (NN) to generate refined channel estimates on the corresponding RS symbols. Time domain (TD) interpolation is performed on the refined channel estimates to produce a channel estimate across symbols.

A method includes performing channel encoding on a plurality of information bits to obtain a codeword that includes a plurality of code bits; segmenting the codeword into a plurality of segments of code bits; performing the following for each of the plurality of segments of code bits of the codeword: selecting, based on the segment of code bits, a set of channel resources, wherein each set of channel resources is selected among a plurality of sets of channel resources, wherein each of the sets of channel resources includes a unique combination of channel resources including one or more of a selected base sequence, a cyclic shift and a selected set of frequency domain resource elements; mapping the selected base sequence onto the selected set of frequency domain resource elements; and transmitting the selected and frequency mapped base sequence via an OFDM symbol.

This application discloses a communication method, including: obtaining a demodulation reference signal port number, where the demodulation reference signal port number is for determining a resource block offset and a resource element offset; determining a resource element of a phase tracking reference signal based on the resource block offset and the resource element offset; and sending or receiving the phase tracking reference signal based on the resource element of the phase tracking reference signal. In various embodiments, PTRSs corresponding to different DMRS port numbers may be mapped to different resource blocks.

Disclosed is an electronic device including a processor and memory, the processor being configured to perform frequency interpolation on a channel estimation at all resource elements (REs) located where a demodulation reference signal is transmitted, perform time interpolation on a frequency domain interpolated channel obtained from the frequency interpolation, and calculate an enhanced channel estimation based on channel estimates at REs in a frequency domain and REs in a time domain, the channel estimates being output from the time interpolation.

Described herein is a method and signaling for data transmission in a communication network, wherein semantic communication is admitted by the communication network, upon receiving a request for semantic communication service. Subsequently resource elements, RE, of the physical, PHY, layer and / or the media access control, MAC, layer of the standard protocol are selected for semantic communication and overloaded for semantic communication. The selected RE are associated to a semantic-data radio bearer, S-DRB. Therefore, the effects on the system can be limited while at the same time semantic communication can be achieved. Semantic communications therefore overloads (or substitutes) some of the standard functionalities while at the same time preserving compatibility with legacy services.

A base station transmits a downlink control information (DCI) to a wireless device. The DCI comprises: an indication of resource blocks for wireless device transmission of uplink data via a subframe of an unlicensed cell; a first field comprising an index indicating a starting position for the wireless device transmission of the uplink data; and a second field indicating an ending symbol for the wireless device transmission of the uplink data, the ending symbol being one of pre-configured ending symbols. The base station receives the uplink data, via the unlicensed cell, starting at the starting position in the subframe and ending before the ending symbol. The uplink data is received based on a listen-before-talk procedure indicating a clear channel before the starting position. The uplink data is mapped to resource elements corresponding to the resource blocks based at least on the starting position and the ending symbol.

A network entity configures a synchronization signal block (SSB) using SSB resources that convey a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) within an SSB resource area of a resource grid bounded in time by a first configured integer number of time units and bounded in frequency by a second configured integer number of physical channels. A product of the first configured integer number and the second configured integer number is a predetermined constant value, each symbol of the SSB has an equal number of resource elements (REs), and all REs in the each symbol of the SSB, except REs within a frequency guard band between any two of the PSS, the SSS, and the PBCH in the each symbol of the SSB, have non-zero values. A user equipment receives the SSB in the SSB resources as a beamformed SSB.

A wireless UE that operates in a sidelink unlicensed band in a wireless communication system may include at least one antenna configured to transmit and receive one or more wireless signals, at least one processor, and a memory configured to store instructions for the wireless UE when executed by the at least one processor, and the operation of the wireless UE may include determining the number of OFDM symbols available for PSSCH transmission; determining the number of coded symbols of 2nd SCI based on the number of OFDM symbols available for PSSCH transmission; determining the number of resource elements of 2nd SCI based on the number of coded symbols of 2nd SCI; and mapping the 2nd SCI to radio resources based on a parameter related to a starting OFDM symbol location and a parameter related to the number of OFDM symbols and transmitting the same to another wireless UE.

Provided are a method and a device for transmitting and receiving a new radio technology (NR) physical downlink control channel (PDCCH) in a wireless communication system. In one or a plurality of orthogonal frequency division multiplexing (OFDM) symbols in a slot, a terminal monitors a PDCCH transmitted by a base station, wherein the slot is used for a long term evolution (LTE) cell-specific reference signal (CRS), and the terminal receives, from the base station, in at least one OFDM symbol in the slot, a demodulation reference signal (DM-RS) for the decoding of the PDCCH. A resource element (RE) used for the DM-RS for the decoding of the PDCCH does not overlap with an RE used for a LTE CRS.

A user equipment maps a high priority hybrid automatic repeat request-acknowledgment / negative acknowledgment (HARQ-ACK / NACK) information to one or more resource elements (REs), and maps one or more of a low priority HARQ-ACK / NACK information, channel state information (CSI), or uplink-shared channel (UL-SCH) data to REs while rate matching around the mapped high priority HARQ-ACK / NACK REs. A network entity receives an uplink transmission, including high and low priority HARQ-ACK / NACK information, CSI, and UL-SCH data mapped to high and low priority HARQ-ACK / NACK REs, CSI REs, and UL-SCH REs, respectively. The low priority HARQ-ACK / NACK REs, the CSI REs, and the UL-SCH REs are rate matched around the high priority HARQ-ACK / N ACK REs. The network entity demaps and decodes the REs of the high and low priority HARQ-ACK / NACK, the CSI, and UL-SCH to obtain the high and low priority HARQ-ACK / NACK information, CSI, and UL-SCH data.

Methods, systems, and devices for wireless communication are described. Some wireless communications network may operate in accordance with an open-RAN (ORAN) network specification which may support functional splitting between the ORAN distributed unit (O-DU) and the ORAN radio unit (RU). The O-DU may communicate with the O-RU using control messaging. The control message may include a resource resource element (RE) mask and a resource symbol mask, the resource RE mask indicating frequency resources to be allocated for a reference signal transmission across a set of antenna ports and the resource symbol mask indicating time resources to be allocated for the reference signal transmission. Additionally or alternatively, the O-DU may transmit a control message including a puncturing resource RE mask indicating frequency resources for applying a puncturing pattern and a symbol mask indicating time resources for applying the puncturing pattern during a transmission.

The invention discloses a communication method and device, which can improve the PBCH receiving performance of a narrowband terminal while saving the overhead of a common channel. The method comprises the following steps: an RAN node determines the length of a coding bit sequence of a physical broadcast channel (PBCH) according to a first numerical value E1, determines the coding bit sequence according to the length of the coding bit sequence and an information bit sequence of the PBCH, determines M symbols of the PBCH according to the coding bit sequence, and maps the first M1 symbols in the M symbols to a first time frequency resource, and mapping the remaining M-M1 symbols to a second time frequency resource, wherein M and M1 are positive integers greater than 1. Wherein the first numerical value E1 is the product of M1 and the modulation order, and M1 is the number of effective resource elements RE in the first time-frequency resource. The first time-frequency resource and the second time-frequency resource form a PBCH time-frequency resource. The subcarriers occupied by the first time-frequency resource and the second time-frequency resource are not overlapped. And the first type of terminal acquires the first M1 symbols mapped on the first time-frequency resource, and the second type of terminal acquires the M symbols mapped on the PBCH time-frequency resource.

A wireless transmit / receive unit (WTRU) may receive channel estimation training allocation information. The channel estimation training allocation information may include one or more of L-DMRS RE allocation information and / or L-DMRS power offset information. The WTRU may receive L-DMRS REs and DMRS REs, for example according to the channel estimation training allocation information. The WTRU may determine whether online training is complete, for example based on the L-DMRS REs and / or the DMRS REs. The WTRU may send, for example based on the determination of whether online training is complete, an indication of whether online training is complete to a network.

Embodiments contemplate methods, systems, and apparatuses for interference measurement in a wireless communication network, including wireless communication networks the employ MIMO in uplink and / or downlink communication. Embodiments contemplate identifying one or more interference measurement resource elements that may be received from one or more transmission points. Embodiments also contemplate performing interference measurement estimation based at least in part on the identified one or more interference measurement resource elements. Channel state information (CSI) perhaps in the form of reports may be generated based at least in part on the one or more interference measurement estimation. Embodiments also contemplate that the CSI report may be transmitted to one or more nodes. In some embodiments, the one or more interference measurement resource elements may be received as part of a set of resource elements.

Methods and apparatuses for uplink (UL) control information transmission and multiplexing. A method of operating a user equipment (UE) includes determining uplink control information (UCI), which is organized into N UCI type blocks, where N≥1 and each of the N UCI type blocks include one or more UCIs, determining an uplink shared channel (UL-SCH) transport block, and encoding and rate matching each of the encoded and rate matched N UCI type blocks. The method further includes multiplexing the N UCI type blocks with the UL-SCH transport block to generate block A, segmenting, encoding, rating match and concatenating block A to generate block B, mapping block B to resource elements of a physical uplink shared channel (PUSCH), and transmitting the PUSCH.

Methods, systems, and devices for wireless communications are described. A first wireless device receives or transmits, from a second wireless device, first signaling indicating a size of a precoding resource block group and an offset parameter indicating an offset between the precoding resource block group and a codeblock. The first wireless device transmits or receives second signaling indicating a resource element starting parameter and a resource element ending parameter in at least one of a time domain and a frequency domain based at least in part on the size of the precoding resource block group. The first and second wireless devices communicate coded bit streams that are interleaved in accordance with at least one of the size of the precoding resource block group, the offset parameter, the resource element starting parameter, the resource element ending parameter, or any combination thereof.

A method by which a first device performs wireless communication and a device for supporting same are provided. The method may comprise the steps of: acquiring sidelink (SL) positioning reference signal (PRS) configuration information including information related to an SL PRS resource; receiving an SL PRS on a first resource; and transmitting SL PRS retransmission request information on a second resource. For example, the second resource can be determined on the basis of the comb size of the SL PRS and / or a resource element (RS) offset of the SL PRS.

The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). The disclosure relates to a method for transmitting channel state information reference signal (CSI-RS). The technical result includes increased performance and flexibility of CSI-RS generation and transmission framework, unified CSI-RS structure, and reduced transmission overhead. A method for transmitting channel state information reference signal is provided. The method includes setting, at a base station, CSI-RS transmission configuration information, including one or more code-division multiplexing (CDM) groups with uniform frequency distribution of resource elements (RE) in each CDM group, transmitting the CSI-RS transmission configuration information from the base station (BS) to user equipment (UE), generating, for each antenna port of the base station, a CSI-RS modulated by orthogonal cover code (OCC) in frequency domain (FD) across resource elements according to discrete Fourier transform (DFT) vector and in time domain (TD) across one or more Orthogonal Frequency-Division Multiplexing (OFDM) symbols according to Walsh-Hadamard (WH) code, and transmitting the CSI-RS from the BS to the UE according to the CSI-RS transmission configuration.

A PSFCH sending method and an apparatus are provided, and relate to V2X, an intelligent vehicle, autonomous driving, an intelligent connected vehicle, and the like. The method may include: a first terminal apparatus receives first sidelink data from a second terminal apparatus, and determines, based on a transmission resource of the first sidelink data, a feedback resource used to send SFCI. The transmission resource of the first sidelink data and the feedback resource include N resource elements, and N is a positive integer. When X resource elements are required for sending first feedback information, and X is less than N, the first terminal apparatus sends at least one piece of SFCI to the second terminal apparatus on the feedback resource through at least one PSFCH. The SFCI includes the first feedback information, and the first feedback information indicates whether the first terminal apparatus correctly receives the first sidelink data.

Provided are a method for a first device carrying out wireless communication, and a device supporting same. The method may comprise the steps of: determining the number of resource elements (REs) for determining a Transport Block Size (TBS) on the basis of the number of REs in a single slot and the number of REs on a Physical Sidelink Control Channel (PSCCH) resource in the single slot; acquiring an intermediate number associated with the TBS by multiplying the number of REs for determining the TBS, a code rate, a modulation order and the number of layers; quantizing the intermediate number; determining the TBS on the basis of the quantized intermediate number; and transmitting a sidelink (SL) to a second device on the basis of the determined TBS. Here, the number of REs for determining the TBS may be determined by excluding the number of REs on the PSCCH resource.

A method, for a base station, for transmitting Position Reference Signals (PRS) in a wireless communication system is provided. The method comprises mapping PRS to Resource Elements (REs) of a frame structure, and transmitting the frame structure such that the power used to transmit REs containing PRS is higher than the power used to transmit REs not containing PRS. Methods, for a User Equipment (UE), for transmitting PRS in a wireless communication system are also provided. One method comprises measuring the signal strength from one or more base stations, and transmitting PRS with a power determined based on the measurements. Another method comprises receiving signaling from a base station, and transmitting PRS with a power determined based on the signaling.

A method performed by user equipment comprises: receiving a synchronization signal / physical broadcast channel (SS / PBCH) block including a primary synchronization signal, a secondary synchronization signal, and a physical broadcast channel; receiving system information based on the SS / PBCH block; receiving uplink reference signal (UL RS) configuration information; and transmitting a UL RS on a UL RS resource set based on the basis of the UL RS configuration information, wherein the UL RS resource includes at least one resource element (RE), the at least one RE is set to N-comb on a frequency domain, the start position on the frequency domain of each of the REs is determined based on a comb offset and a preset offset included in the UL RS configuration information, the preset offset is obtained based on the N-comb and at least one orthogonal frequency division multiplexing symbol of the at least one RE, and N is a natural number.

New radio download numerology allocation information may be obtained through master information block data, system information block data, radio resource control signals, or signals or a physical downlink numerology indication channel, and used along with a reference signal detected in a search space to obtain resource element positions in an antenna port reference signal in a resource block that belongs to a particular band slice according to a reference signal allocation scheme for a band slice numerology. A physical download control may then be decoded based upon one or more resource elements of the reference signal, allowing the connection of, e.g., an enhanced mobile broadband, massive machine type communication, or ultra-reliable / low-latency application to a communications network thereby. Alternatively, multiple physical downlink control channels may be blindly demodulated at each of a number calculated reference signal locations, and one channel selected based on passing a cyclic redundancy check.

A network node configured to, and / or comprising a radio interface and / or comprising processing circuitry configured to transmit a synchronization block mapped to four OFDM symbols in the time domain and 144 contiguous subcarriers in the frequency domain is provided. Optionally, a first of the four OFDM symbol is used by a primary synchronization signal, PSS. Optionally, a third of the four OFDM symbols is used by a secondary synchronization signal, SSS. Optionally, a second and a fourth of the OFDM symbols are used by a Physical Broadcast Channel, PBCH, in 12 contiguous resource blocks, RBs. Optionally, within each of the resource block RB in an OFDM symbol used by PBCH, there are 12 resource elements, and, optionally, 3 of the 12 resource elements are used for a downlink modulation reference signal, DMRS.

The technology described herein is directed towards informing user equipment of which physical downlink control channel (PDCCH) locations in a slot symbol are allocated for (PDCCH) information. With the user equipment having this allocation information, a base station (e.g., gNodeB) scheduler can schedule unused PDCCH resource element group(s) to a UE for physical downlink shared channel (PDSCH) decoding. Further, because the allocation pattern is known to a UE, the UE need not blindly scan and decode all potential resource element groups in a slot, instead only decoding the PDCCH data in the allocated pattern to find the UE-specific information, and thereby proceed with PDSCH decoding. A defined identifier at a predefined symbol location informs the user equipment when the PDCCH allocation information is present. If not present, the UE blindly decodes all the resource element groups to find the UE-specific information to decode PDSCH data, as is currently done.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive first control signaling identifying a demodulation reference signal (DMRS) pattern that may be uniformly distributed in a time domain and a frequency domain. The DMRS pattern may include a first set of resource elements for the DMRS, a second set of resource elements for guard tones adjacent to and greater in frequency than the first set of resource elements, and a third set of resource elements for guard tones adjacent to and lower in frequency than the first set of resource elements. The UE may receive second control signaling that schedules a data signal to be communicated between the UE and a network node in a set of time-frequency resources. The UE may communicate the data signal according to the second control signaling and the DMRS according to the DMRS pattern.