6092results about "Error prevention/detection by transmission repeat" patented technology

A method performed by a radio unit (RU) is provided. The method includes receiving, by the RU, sounding reference signals (SRSs), receiving, by the RU from a distributed unit (DU) via a fronthaul interface, a control plane (C-plane) message including SRS configuration information, performing, by the RU, channel estimation based on the SRSs and the SRS configuration information, and performing, by the RU, beamforming on the basis of the channel estimation.

Disclosed are a method and a device for transmitting or receiving an uplink channel on the basis of demodulation reference signal (DMRS) bundling in a wireless communication system. A method by which a terminal transmits an uplink channel in a wireless communication system, according to one embodiment of the present disclosure, comprises the steps of: receiving configuration information related to the DMRS bundling for the uplink channel from a network; and transmitting the uplink channel to the network in a first actual time domain window (TDW) within a set TDW or in the first actual TDW and a second actual TDW within the set TDW, wherein the first actual TDW ends in relation to an event, and whether to generate the second actual TDW in response to the event may be based on capabilities of the terminal, on the basis of the event being a first type event.

A terminal according to one aspect of the present disclosure includes: a receiving section that receives information related to at least one of a search space set and a control resource set for repetition transmission of a downlink control channel; and a control section that controls reception of a downlink control channel applied with the repetition transmission, based on at least one of a plurality of associated search space sets and a plurality of associated control resource sets obtained based on the information.

Various embodiments herein provide techniques for sidelink (SL) communication on unlicensed spectrum. For example, embodiments provide techniques for a physical sidelink feedback channel (PSFCH) and / or a SL synchronization signal block (S-SSB), such as techniques related to a listen-before-talk (LBT) procedure and / or occupied channel bandwidth (OCB) requirements. Other embodiments may be described and claimed.

A method and a device for performing uplink transmission / reception in a wireless communication system are disclosed. A method by which a terminal performs uplink transmission in a wireless communication system, according to an embodiment of the present disclosure, may comprise the steps of: receiving, from a base station, configuration information about one or more sets of SRS resources; receiving, from the base station, DCI for scheduling a PUSCH, the DCI including information related to one or more sets of SRS resources from among the one or more sets of SRS resources; identifying a method to be applied to the PUSCH from among a first method and a second method; and transmitting the PUSCH to the base station on the basis of the identified method.

Disclosed are a method and a device for multi-frequency unit-based simultaneous transmission or simultaneous reception in a wireless communication system. A method for performing uplink transmission or downlink reception by a terminal in a wireless communication system according to an embodiment of the present disclosure may comprise the steps of receiving, from a network, configuration information related to a group of frequency units for one or more of an uplink and a downlink; and on the basis of one or more of a reference signal-related resource and a channel-related resource for a first frequency unit and a second frequency unit included in the group of frequency units, performing, in the same time unit, uplink transmission or downlink reception on the first frequency unit and the second frequency unit, wherein the first frequency unit and the second frequency unit at least partially overlap on a frequency domain.

A user equipment (UE) is described. The UE may comprise high-layer processing circuitry configured to acquire a first RRC parameter and a second RRC parameter and transmission circuitry configured to transmit a PUSCH in multiple slots. The first RRC parameter is used for determination of the multiple slots, and the second RRC parameter is used for omission of the PUSCH transmission.

The present invention relates to a wireless communication system and, more specifically, to a method wherein resource allocation information for downlink reception or uplink transmission is acquired, and if the downlink reception or uplink transmission is required on a sub-band slot / symbol, the downlink reception or uplink transmission is performed in consideration of sub-band operations, and a wireless device therefor.

A method of wireless communication performed by a user equipment (UE) includes receiving, from a base station (BS), a random access configuration associated with a plurality of random access occasions, wherein at least a first portion of the plurality of random access occasions is configured for PRACH message repetitions. The method further includes transmitting, to the BS based on the random access configuration, at least one random access communication, the at least one random access communication including a plurality of PRACH message repetitions in two or more of the plurality of random access occasions, wherein at least one of a random access occasion index associated with the at least one random access communication or the random access preamble indicates the at least one random access communication includes at least two PRACH message repetitions.

Disclosed are a method and device for a first terminal to transmit a positioning reference signal (PRS) through a physical sidelink feedback channel (PSFCH) in a wireless communication system supporting sidelink communication according to various embodiments. Disclosed are a method and device, wherein the method comprises the steps of: allocating a first frequency resource region for a PRS within a resource region for the PSFCH so that the PRS is multiplexed with a feedback signal; transmitting allocation information on the first frequency resource region; and transmitting the PRS and the feedback signal through the PSFCH on the basis of the allocation information, wherein the size of the first frequency resource region is determined on the basis of the size of a pre-configured frequency resource for the feedback signal and the type of the multiplexing, and the allocation information includes information on the multiplexing type, the size of the first frequency resource region, and the start frequency of the first frequency resource.

Various aspects of the present disclosure relate to a UE that receives an indication of one or more system information transmission repetition periodicity values corresponding to a respective subset of synchronization signal blocks (SSBs) within a burst of SSBs. The UE selects at least one SSB from the burst of SSBs, and receives a system information message via one or more physical downlink control channel (PDCCH) monitoring occasions in a search space set for the system information message. The one or more PDCCH monitoring occasions, for instance, are determined based on a system information transmission repetition periodicity value of the one or more system information transmission repetition periodicity values, and the system information transmission repetition periodicity value corresponds to the selected SSB. The UE can implement wireless communication using system information determined from the received system information message.

Provided is a method performed by a user equipment (UE) in a wireless communication system, including: receiving, from a base station, configuration information regarding a plurality of search spaces for a physical downlink control channel (PDCCH) repetition; monitoring a plurality of PDCCHs on at least one cell based on the configuration information; identifying a time at which a repetition of PDCCHs including a first downlink control information (DCI) format, from among the plurality of PDCCHs, ends; determining at least one power headroom report (PHR) for the plurality of PDCCHs, based on an actual transmission or a reference format configured from higher layer signaling according to the identified time; and transmitting the determined at least one PHR on a physical uplink shared channel (PUSCH) scheduled by the first DCI format.

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure relates to a method carried out by a terminal in a wireless communication system, the method comprising the steps of: transmitting, to a base station, terminal capability information including information related to simultaneous transmission with multi-panel (STxMP); receiving an upper layer signal from the base station; checking whether the upper layer signal includes a parameter for supporting the STxMP; if the upper layer signal includes the parameter for supporting the STxMP, checking support for the STxMP based on multi-downlink control information (DCI); receiving, from the base station, first DCI for scheduling a first physical uplink shared channel (PUSCH) from a first control resource set (CORESET) having a CORESET pool index set to 0, and second DCI for scheduling a second PUSCH from a second CORESET having the CORESET pool index set to 1; and, on the basis of the STxMP, carrying out first PUSCH transmission and second PUSCH transmission overlapping at least in a time domain.

The invention relates to the field of data storage and backup, and discloses a method and a system for transmitting disaster recovery backup capability of an emergency recovery unit. The method comprises the steps of establishing a quantum encryption transmission channel, monitoring a network index in real time and predicting transmission quality to start preventive optimization, calculating a link quality score to carry out link switching, verifying integrity and consistency of received data and executing retransmission, carrying out multi-mode data backup, and switching to an emergency recovery unit when a main data center fails. The system comprises a quantum encryption transmission module, a transmission monitoring and switching module, a data verification and retransmission module, a multi-mode backup module and an emergency switching and synchronization module. Through the technical scheme, the problems of data transmission security and high efficiency can be effectively solved, the disaster recovery backup capability of the emergency recovery unit is improved, the service continuity is ensured, and the method and the device are suitable for scenes with high requirements on data security and service continuity.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a network entity, one or more synchronization signals of a synchronization signal block (SSB). The UE may receive, from the network entity, a system information message indicating a received power threshold associated with a two-step random access procedure. The UE may transmit, to the network entity in accordance with the two-step random access procedure, a first message (e.g., msgA) of the two-step random access procedure. The first message may include a first number of repetitions of a random access preamble, a second number of repetitions of a random access payload, or both. The UE may determine the first number of repetitions and the second number of repetitions based on measurements of the one or more synchronization signals and the received power threshold indicated by the system information message.

A wireless device may communicate with a base station using transmission occasions. A number of transmission occasions for a transmission / reception may be indicated by a field and / or by an absence of a field in a message that schedules transmission / reception. For example, two physical downlink shared channel transmission occasions may be used, for scheduled transmission / reception, based on a value in a transmission configuration indicator selection field and / or based on an absence of such a field in a message.

A terminal according to one aspect of the present disclosure includes: a transmitting section that transmits a message in a random access procedure in a physical uplink shared channel; and a control section that controls a plurality of repetitions of at least one of reception of a downlink channel for scheduling the physical uplink shared channel and transmission of a channel the physical uplink shared channel. According to one aspect of the present disclosure, coverage can be improved by taking account of overhead.

Embodiments of the present disclosure relate to methods, devices and computer storage media for communication. According to embodiments of the present disclosure, a terminal device transmits, to a network device, a first hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to a first downlink control information (DCI) in a first physical downlink control channel (PDCCH), wherein the first DCI indicates a first transmission configuration indicator (TCI) state. If a condition is fulfilled, the terminal device applies the first TCI state. In this way, the terminal device understands when and / or whether to apply the indicated TCI state.

Embodiments of the present disclosure relate to a method and apparatus for multiple transmit-receive points (multi-TRP) transmission. According to an embodiment of the present disclosure, a method can include: receiving first configuration information for uplink phase tracking reference signal (PT-RS) and second configuration information indicating a plurality of sounding reference signal (SRS) resource sets, wherein each of the plurality of SRS resource sets is associated with at least one physical uplink shared channel (PUSCH) repetition; for each PUSCH repetition, determining a number of PT-RS ports for transmitting the uplink PT-RS; and transmitting two or more PUSCH repetitions. Embodiments of the present disclosure can resolve the issues caused by the imbalance numbers of PT-RS ports between different TRPs.

Methods, systems, and devices for wireless communications are described. A network entity (e.g., a base station or reader) may transmit an initial access trigger message (e.g., modulating a continuous wave transmission using amplitude shift keying (ASK)), and the trigger message may include an indication of a type of passive user equipment (PUE) or a PUE use case (e.g., high priority / latency-critical PUEs or low priority / latency non-critical PUEs). A receiving PUE may harvest energy from the initial access trigger message for transmitting an initial access response message including an identifier for the receiving PUE. The receiving PUE may transmit the initial access response message (e.g., on one or more initial access resources) using the harvested energy if the trigger message indicates the PUE's type of PUE or PUE use case. In some examples, the receiving PUE may ignore triggers for different types of PUEs or PUE use cases.

A user device, UE, for a wireless communication system, like a 3rd Generation Partnership Project, 3GPP, system, is disclosed. The UE receives and / or transmits one or more physical channel transmissions. The one or more of the physical channel transmissions are received or transmitted without any associated DeModulation Reference Signal, DMRS, or with a partial or full DMRS muting.

Embodiments of this application provide a wireless communications method, a terminal device, and a network device. The method includes: repeatedly transmitting a first physical uplink control channel PUCCH to a network device in an initial access phase. In this application, a repetition of PUCCH transmission is introduced in the initial access phase.

Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.

Methods, systems, and devices for wireless communications are described. A UE may receive, from a network entity, control signaling identifying two or more transmission configuration indicator states that are to be applied to communications of one or more channels subsequent to a determined time; receive, from the network entity, control information associated with one or more resource allocations for communications after the determined time; and communicate via the one or more channels according to a first transmission configuration indicator state of the two or more transmission configuration indicator states based at least in part on a parameter associated with the control information and the two or more transmission configuration indicator states.

A terminal receives a reference signal from an access network device. The terminal determines, based on a received power of the reference signal and a first set, a quantity of repetition times of sending a random access preamble by the terminal, where the first set is a set of quantities of times of repeatedly sending the random access preamble by the terminal, and the first set includes at least one or more of the following elements: an integer multiple of 3, an integer multiple of 5, or an integer multiple of 7. The terminal repeatedly sends the random access preamble to the access network device on a random access occasion RO based on the quantity of repetition times.

The disclosure relates to a communication technique and system therefor for converging an Internet of Things (IoT) technology and a 5th generation (5G) communication system for supporting a high data rate after a 4th generation (4G) system. The disclosure is applicable to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, health care, digital education, retail, security, and safety services) based on a 5G communication technology and IoT-related technology. The disclosure provides a method and apparatus for uplink (UL) data repetition transmission by a user equipment (UE) in a next-generation communication system.

Configuration parameters sent to a wireless device may indicate resources (and a repetition scheme that the wireless device may use for communication. An activation command, scheduling a reception, may indicate to use at least two transmission configuration states for the scheduled reception. The wireless device may use the indicted two transmission and a configured repetition scheme to receive the scheduled reception.

The present disclosure relates to a communication method for converging IoT technology with 5G communication systems for supporting higher data transmission rates than beyond 4G systems, and to a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. The present invention characterizes in a method for a terminal of a wireless communication system, wherein the method comprises the steps of: receiving channel or reference signal configuration information including beam-related configuration information via higher layer signalling; transmitting and receiving the channel or a reference signal to and from a base station on the basis of the beam-related configuration information; receiving beam change information for the channel or reference signal; and transmitting and receiving the channel or reference signal of a plurality of component carriers to and from the base station on the basis of the beam change information, wherein the beam-related configuration information and the beam change information include transmission configuration indicator (TCI) state information of the channel or reference signal.

A method performed by a user equipment (UE) supporting extended reality (XR) in a wireless communication system is provided. The method comprises receiving, from a base station (BS), control information related to a power saving operation, and performing the power saving operation configured based on the control information. The power saving operation may comprise determining a size of a XR-retransmission (reTx) timer based on the control information, starting the XR-reTx timer based on a configured condition, and based on the XR-reTx timer expiring, stopping a monitoring of a physical downlink control channel (PDCCH) including scheduling information for a retransmission of a physical downlink shared channel (PDSCH) from the BS.

This application discloses a random access resource configuration method and apparatus, a terminal, and a network-side device, pertaining to the field of mobile communication. The random access resource configuration method includes: receiving, by a terminal, first configuration information from a network-side device, where the first configuration information is used for configuring a first RO resource set and / or a second RO resource set for random access signal repetition transmission; determining, by the terminal, an association relationship of RO resources in the first RO resource set and / or the second RO resource set; and determining, by the terminal, N RO resources based on the association relationship of the RO resources to perform N random access signal repetition transmissions; where the first RO resource set includes at least one of the following: a RO resource for 4-step RACH; a RO resource for 2-step RACH; and a RO resource for Msg3 repetition transmission.