730 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 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.

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.

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.

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.

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.

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.

A method and a corresponding apparatus for performing uplink transmission in a wireless communication system are disclosed. The method comprises: based on at least one of the information indicating uplink transmission resources, acquiring the number of resource elements REs used for determining a PUSCH transmission; determining a transport block size TBS for the uplink transmission based on the number of REs; and performing the uplink transmission based on the determined TBS. Wherein, a PUSCH transmission occupies m time unit for transmission, and the rate matching and RE mapping of the PUSCH are performed on all resources occupied in m time unit.

The invention provides a coding modulation method and a related device, and the method comprises the steps: carrying out the coding of N input bit sequences through employing code rates corresponding to the N input bit sequences, and obtaining N coded bit sequences corresponding to the N input bit sequences; the length of each input bit sequence is determined according to at least one of a code rate, a modulation order or the number of resource elements (RE) used for data transmission corresponding to the input bit sequence; the N coded bit sequences are mapped to the same constellation diagram, the constellation diagram comprises M constellation points, each constellation point comprises N segmented bits, and the N segmented bits correspond to the N coded bit sequences respectively. According to the process, the transmission efficiency is guaranteed, the coding complexity of the sending end is reduced, in addition, the protocol modification degree is also reduced, and the coding implementation cost is further reduced.

Certain aspects of the present disclosure provide a method for wireless communications at a gNodeB (gNB). The gNB may receive capability information of a user equipment (UE). The gNB may transmit an indication of scheduled resources for one or more transmissions to the UE. The scheduled resources may be in accordance with scheduling rules, which are associated with the capability information. The scheduling rules may indicate a same quantity of consecutive physical resource blocks (PRBs) to be allocated for each downlink sub-band within a downlink bandwidth part (BWP), a quantity of PRBs that are at an offset from a reference point per each downlink sub-band within the downlink BWP is even, and / or a size of each physical resource block group (PRG) allocated for the UE is associated with an even number.

The embodiments of the present disclosure provide a method performed by a node in a wireless communication system, an electronic apparatus, and a storage medium. The method includes: demodulating first signals corresponding to received respective resource elements to obtain second signals corresponding to the respective resource elements and confidence of the second signals corresponding to the respective resource elements; selecting second signals corresponding to a first set of resource elements from among the second signals corresponding to the respective resource elements, according to the confidence of the second signals corresponding to the respective resource elements; determining channel state information corresponding to the first set of resource elements, according to the second signals corresponding to the first set of resource elements; determining channel state information corresponding to the respective resource elements, based on the channel state information corresponding to the first set of resource elements.

Methods, systems, and apparatus for mobile satellite beam resource allocation are described. Communication services may be provided to a mobile terminal via respective beamformed spot beams that track movement of the mobile terminal. The central server may perform resource element allocation by determining, for a repetitive period of time, an interference event associated with a beam for a current period of time; determining a resource element to be associated with an interference beam for a next time period; and directing the beam to a reallocation of the resource elements for the next time period. Each beam may be allocated to one or more resource elements based on a number of mobile terminals within a coverage of the beam or a desired data rate of the mobile terminals. The power associated with the resource element may be adjusted based on a data rate or user demand associated with the mobile terminal.

A method performed by an electronic device is provided. The method includes obtaining a signal on a plurality of resource elements (REs), selecting, based on a time interval between symbols, reference REs from the plurality of REs, and a frequency interval between the symbols, performing, based on the reference REs, channel estimation, obtaining, based on a result of the channel estimation, a plurality of first weights corresponding to the reference REs, obtaining, based on the plurality of first weights, a plurality of second weights corresponding to other REs distinct from the reference REs from among the plurality of REs, and obtaining, based on the plurality of first weights and the plurality of second weights, information corresponding to the signal.

A method and a corresponding apparatus for performing uplink transmission in a wireless communication system are disclosed. The method comprises: based on at least one of the information indicating uplink transmission resources, acquiring the number of resource elements REs used for determining a PUSCH transmission; determining a transport block size TBS for the uplink transmission based on the number of REs; and performing the uplink transmission based on the determined TBS. Wherein, a PUSCH transmission occupies m time unit for transmission, and the rate matching and RE mapping of the PUSCH are performed on all resources occupied in m time unit.

Methods and apparatuses to facilitate larger number of DMRS ports are disclosed. A method may comprise receiving a configuration for Demodulation Reference Signal (DMRS) that includes a DMRS type, wherein, the maximum number of DMRS ports supported by DMRS type 1 is 8 for single-symbol DMRS and 16 for double-symbol DMRS, and the maximum number of DMRS ports supported by DMRS type 2 is 12 for single-symbol DMRS and 24 for double-symbol DMRS; receiving a Downlink Control Information (DCI) indicating one or more DMRS ports for a scheduled transmission, wherein the scheduled transmission is a Physical Uplink Shared Channel (PUSCH) transmission or a Physical Downlink Shared Channel (PDSCH) transmission; and mapping each of the indicated DMRS ports to a plurality of Resource Elements (REs) in one or more Resource Blocks (RBs) scheduled for the transmission based on the configuration for DMRS.

A wireless device receives a SIB1 message indicating a first number of PDCCH monitoring occasions, for receiving a paging early indication (PEI), of a PEI occasion associated with a paging occasion, a second number of PDCCH MOs, for receiving a paging message, of the paging occasion, and a third number of SSBs. The wireless device skips monitoring, a first PDCCH for receiving the PEI, over the first number of PDCCH MOs, in response to each of the first number of PDCCH MOs, of the PEI occasion, overlapping with at least one resource element (RE) of a SSB of the third number of SSBs. The wireless device, in response to skipping monitoring the first PDCCH, monitors, over the second number of PDCCH MOs, a second PDCCH for a DCI scheduling the paging message.

Timing adjustments or frequency offsets that at least partially compensate for Doppler shift (e.g., due to distance of a satellite transmitter or relative speed of a terrestrial receiver) of a signal, physical channel, or resource during wireless transmission are configured. The characteristics compensated comprise one of resource element (RE) mapping, channel state information reference signal (CSI-RS) configuration, bandwidth part (BWP) configuration, or control resource set (CORESET) configuration. Information indicating the multiple configurations is transmitted from a base station (BS) to at least one user equipment (UE). The timing adjustments or frequency offsets are specifically configured for one UE, a group of UEs, or the UEs served by a single serving cell. Joint transmission from multiple cells / TRPs / spotbeams may involve partial / full subcarrier alignment.

The invention relates to the technical field of communication, and provides a downlink control information detection method and device, electronic equipment, a storage medium and a computer program product, and the method comprises the steps: carrying out the rate de-matching based on to-be-processed data, and obtaining the rate de-matching data; the to-be-processed data is obtained by performing resource element channel estimation and equalization in a control channel unit in a downlink control information blind detection process; performing polarization decoding on the rate de-matching data based on the aggregation level corresponding to the to-be-processed data to obtain decoded data; determining a target load length range from two load length ranges preset for the downlink control information based on the bit length information of the decoded data; wherein the two load length ranges are divided according to aggregation grades; and performing data verification on the decoded data based on the target load length range to obtain a detection result of the downlink control information. According to the invention, the detection efficiency of the downlink control information can be improved by reducing the calculation amount and time during detection of the downlink control information.

A UE receives parameters of a machine learning model from a network node; calculate a gradient value relative to a parameter of the parameters of the machine learning model, the gradient value including a positive gradient value or a negative gradient value. The UE may transmit, in one resource element (RE) of a pair of REs to the network node, an analog signal indicating a magnitude of the gradient value relative to the parameter of the parameters of the machine learning model. The UE may transmit or skip transmission of, in a single RE to the network node, an analog signal based on the gradient value, the single RE designated for indicating the positive gradient value or the negative gradient value of the gradient value relative to the parameter of the parameters of the machine learning model.

Disclosed are methods, systems, and computer-readable medium to perform operations including: generating a mapping pattern that comprises a length-4 frequency division orthogonal cover code (FD-OCC4), the mapping pattern for mapping demodulation reference signals (DMRS) in frequency to a plurality of resource elements in at least one orthogonal frequency-division multiplexing (OFDM) symbol, wherein the DMRS are associated with a plurality of DMRS ports; mapping, using the FD-OCC4, the DMRS to the plurality of resource elements in the at least one OFDM symbol; and transmitting a transmission comprising the at least one OFDM symbol.