5512results about "Error prevention/detection by using return channel" patented technology

Disclosed are a method and device for transmitting and receiving signals and channels in a wireless communication system. A method performed in a wireless communication system by a UE according to an embodiment may comprise: first DCI indicating a new data indicator (NDI) value and an HARQ process number (HPN) value is received in a first cell; a group common PDSCH scheduled by the first DCI is received in the first cell; second DCI indicating the NDI value and the HPN value is received in a second cell; and a UE-dedicated PDSCH scheduled by the second DCI is received in the first cell. Here, the UE-dedicated PDSCH may be received by being determined as the retransmission of a transport block (TB) of the group common PDSCH based on a pre-configured condition.

The disclosure relates to a method and apparatus for transmitting and receiving signals in a wireless communication system. A user equipment (UE) according to an embodiment of the disclosure may receive information about a resource for uplink (UL) control information transmission and MA signature configuration, determine based on the resource for UL control information transmission whether the resource allocated for the UL control information transmission overlaps a resource allocated for UL data transmission, determine whether to multiplex the UL control information when it is determined that the resource allocated for the UL control information transmission overlaps the resource allocated for UL data transmission, and based on a result of the determining, multiplex the UL control information with UL data based on the information about the MA signature configuration and transmit a result of the multiplexing.

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.

In an example from the perspective of a first User Equipment (UE), in response to performing successful listen before talk (LBT), the first UE determines a channel occupancy time (COT). The first UE determines whether or not a second sidelink transmission, to be performed by a second UE, is within the COT. The first UE determines information, associated with LBT type and / or cyclic prefix (CP) extension, for inclusion in a first sidelink transmission in the COT, wherein whether the information includes first information associated with LBT type and / or CP extension or the information includes second information associated with LBT type and / or CP extension is based on the determination of whether or not the second sidelink transmission is within the COT. The UE transmits, to the second UE, the first sidelink transmission in the COT. The first sidelink transmission includes the information. The second sidelink transmission is associated with the first sidelink transmission.

The present disclosure provides a method and a device for providing a hybrid automatic repeat request (HARQ) in a first non-terrestrial network (NTN)-second NTN multi-connectivity environment. A method of a first base station according to an embodiment of the present disclosure may comprise the steps of: transmitting data to a terminal being in a dual connectivity (DC) state through a first non-terrestrial network (NTN) link using a first satellite connected to the first base station and a second NTN link using a second satellite connected to a second base station; and receiving an uplink channel including first hybrid automatic repeat request (HARQ) feedback information corresponding to data transmitted to the terminal and second HARQ feedback information corresponding to data transmitted through the second NTN link.

The disclosure relates to methods, devices, and systems for wireless communications. In some wireless communications systems, a base station may transmit a multicast message to a group of user equipment (UEs), and the UEs may provide feedback for the multicast message. In some implementations, the base station may configure the UEs to transmit feedback for multicast messages. In some example, the UEs may transmit group-negative acknowledgment (NACK) feedback information for multicast messages that are not successfully received at the UEs. In some other examples, each UE may be configured with UE-specific uplink control channel resources for transmitting hybrid automatic repeat request (HARQ) feedback for a multicast message. In some implementations, a UE may support feedback for both unicast and multicast messages. The semi-static codebook for unicast, multicast, or both may account for whether the UE is capable of concurrently receiving unicast and multicast messages in a slot.

A method for performing radio communication by a first device, and a device for supporting same may be provided. The method may comprise the steps of: receiving a physical sidelink control channel (PSCCH) from a second device; receiving a physical sidelink shared channel (PSSCH) related to the PSCCH from the second device; determining a physical sidelink feedback channel (PSFCH) resource related to the PSSCH, on the basis of an index of a slot related to the PSSCH and an index of a sub-channel related to the PSSCH; and transmitting, to the second device, hybrid automatic repeat request (HARQ) feedback information for the PSSCH on the PSFCH resource.

A method of a terminal, includes: receiving first DL BWP configuration information comprising an ID of a first DL BWP; receiving first UL BWP configuration information comprising an ID of a first UL BWP; receiving, from the base station, second DL BWP configuration information comprising an ID of a second DL BWP and an ID of a second UL BWP; and recognizing, through the ID of the second UL BWP, that the second DL BWP configuration information is information for DL-UL configuration of the terminal, wherein, in a first slot, when the first DL BWP and the first UL BWP are temporally separated from each other, DL communication and UL communication are not simultaneously performed, by the terminal, with the base station, and wherein, in a second slot, the DL communication and the UL communication are simultaneously performed with a base station based on the second DL BWP configuration information.

Methods, systems, and computer programs for enhancing HARQ-ACK timing procedure. In one aspect, a method can include encoding, by a next generation NodeB (gNB), one or more sets of physical downlink shared channels (PDSCHs) with respect to a listen before talk (LBT) operation on an unlicensed spectrum, transmitting, by the gNB, the encoded one or more sets of PDSCHs to the UE, and determining, by the gNB, scheduling for receiving a HARQ-ACK from the UE corresponding to the one or more sets of PDSCHs based on the LBT operation.

A wireless communication method and an apparatus are provided, and the method includes: performing, by a receive end, a first operation for a first PDU based on first information, where the first PDU includes part of or all of PDUs in a first PDU group, and PDUs in the first PDU group belong to one or more PDU sets.

Provided are a method for performing wireless communication by a first device and an apparatus supporting same. The method may comprise: obtaining information related to at least one resource block (RB) set for physical sidelink feedback channel (PSFCH) transmission; receiving, from a second device, a physical sidelink shared channel (PSSCH); determining a number of PSFCH resources related to the PSSCH; determining an index of an interlaced PSFCH resource among the PSFCH resources, in response to the PSSCH; and performing the PSFCH transmission based on the interlaced PSFCH resource.

The invention discloses a PDCCH repeated transmission processing method and device, a terminal and network side equipment, and belongs to the technical field of communication, and the PDCCH repeated transmission processing method comprises the steps that the terminal obtains configuration information of public PDCCH repeated transmission; the terminal receives common PDCCH repeated transmission according to the configuration information; wherein the public PDCCH comprises at least one of the following items: an SIB1PDCCH, an OSI PDCCH, a message 2PDCCH, a message 4PDCCH, a message B PDCCH, a paging PDCCH and a PDCCH for scheduling retransmission of a message 3.

Disclosed are a method and apparatus for transmitting and receiving a group common signal and channel in a wireless communication system. The method performed by a terminal in a wireless communication system, according to an embodiment of the present disclosure, may comprise the steps of: receiving configuration information regarding one or more TCI states; receiving information related to activation or inactivation of at least one TCI state from among the one or more TCI states; and receiving a specific value via DCI for scheduling a PDSCH. Here, on the basis that a TCI state mapped to the specific value is activated, the PDSCH may be received on the basis of the TCI state, and on the basis that the TCI state mapped to the specific value is inactivated, the DCI may be ignored by the terminal.

A UE comprises: receiving an upper-layer parameter configuration related to CSI reporting; receiving scheduling information including resource allocation information for a PDSCH; receiving the PDSCH on the basis of the scheduling information; determining an uplink resource for the CSI reporting on the basis of the upper-layer parameter configuration and the scheduling information; and transmitting the CSI reporting in the uplink resource. The transmission of the CSI reporting in the uplink resource comprises transmitting, on the basis of a modulation and coding scheme (MCS) offset table including i) the PDSCH and ii) multiple entry values, one of the multiple entry values via the CSI reporting, wherein the multiple entry values comprise first values representing multiple MCS offsets and a second value which has failed to be mapped to an MCS offset and suspended.

A method for performing wireless communication by a first device, and an apparatus supporting same are provided. The method may comprise the steps of: receiving information related to channel occupancy time (COT) from a second device; receiving a first physical sidelink shared channel (PSSCH) from the second device; determining a first PSFCH resource for first physical sidelink feedback channel (PSFCH) transmission related to the first PSSCH; and performing second-type channel access for the first PSFCH transmission within the COT.

Proposed are a method for a first device to perform wireless communication and a device supporting same. For example, the first device may receive, from a second device, a first SCI, for scheduling of a physical sidelink shared channel (PSSCH) and second sidelink control information (SCI), through a physical sidelink control channel (PSCCH). For example, the first device may receive, from the second device, the second SCI through the PSSCH. For example, the second SCI includes a destination ID. For example, the first device may determine whether to use a channel occupancy time (COT) shared from the second device, based on the destination ID included in the second SCI.

Techniques are disclosed for reducing overhead during hybrid automatic repeat request (HARQ) operations performed by a user equipment (UE) during wireless communication. The UE receives a message over the wireless network and obtains a parity check matrix (PCM) associated with a received message. Rows of the PCM are assigned to respective groups of a plurality of groups, where the respective groups have corresponding one or more parity checks as determined by the PCM. The UE generates a feedback message including a plurality of bits, wherein an individual bit of the plurality of bits indicates whether a corresponding respective group of the plurality of groups include one or more unsatisfied parity checks. The UE then transmits the feedback message to a base station of the wireless network.

A terminal includes: a reception unit configured to receive a plurality of downlink shared channels that are scheduled in multiple carriers by a single control information from a base station: a control unit configured to generate feedback information related to retransmission control corresponding to the plurality of downlink shared channels: and a transmission unit configured to transmit the feedback information to the base station. The control unit determines a cell for transmitting the feedback information, based on an uplink shared channel group to which the plurality of downlink shared channels belong.

A common downlink signal of a first cell may be transmitted / monitored on the first cell in a first mode with a first periodicity. A configuration related to a second mode including cell information regarding a second cell associated with the first cell may be provided. Based on transition from the first mode to the second mode, the common downlink signal of the first cell may be transmitted / monitored on the second cell within a first time period.

Embodiments of the present disclosure relate to a method, device and computer readable storage medium of communication. The method comprises determining, at a terminal device, an uplink resource for at least one uplink transmission. The method further comprises performing, the at least one uplink transmission based on one TCI state or more than one transmission configuration indicator (TCI) state based on at least one of the following: a number of TCI states associated with the uplink resource, or a number of uplink resource sets associated with the uplink resource, each uplink resource set corresponding to a TCI state. In this way, the multi-TRP based physical uplink control channel (PUCCH) transmission is enabled.

The disclosure relates to 5G or 6G communication systems to support higher data rates. The disclosure relates to operations of a UE and a base station in a wireless communication system, and specifically, the disclosure proposes a method and device for transmitting and receiving channel state information in a full-duplex communication system.

The invention discloses a multi-terminal cooperative processing method and system, and relates to the field of terminal communication, and the method comprises the steps: responding to a trigger signal of an event, determining event information, and initiating a cooperative processing request to at least one second terminal in a communication range; determining a target terminal responding to the cooperative processing request in the second terminal, and constructing a temporary cooperative group including the target terminal; acquiring shared event associated data in the temporary collaborative group, and determining a consensus event description based on the event associated data and / or the event information; a dominant reporting terminal is determined in the temporary cooperation group, and the dominant reporting terminal is used for packaging the consensus event description into a data packet and sending the data packet to a remote management platform; and receiving a response confirmation message returned by the remote management platform, and broadcasting the unique event ID and the processing state in the response confirmation message to all terminals in the temporary collaborative group. The computing resource consumption of the remote management platform can be effectively reduced.

Disclosed are methods and apparatus to process delay for PDCCH repetition. A transmission of a physical downlink control channel (PDCCH) repetition may be monitored. A multiplexing pattern of the PDCCH repetition and a physical downlink shared channel (PDSCH) within an overlapping symbol may be determined. A processing delay for a decoding of the PDCCH repetition, a decoding of the scheduled PDSCH, and an acknowledgement (ACK) preparation based on the multiplexing pattern of the PDCCH repetition and the PDSCH within the overlapping symbol may be determined. The PDSCH may be monitored after receiving the PDCCH repetition.

The embodiment of the invention provides a communication method and a communication device, and the method comprises the steps that terminal equipment sends CSI feedback information to network equipment, and the network equipment sends first indication information to the terminal equipment, so as to indicate the terminal equipment to report the CSI feedback information again. The scheme provided by the embodiment of the invention can be applied to a communication system with an AI / ML function, is beneficial to reducing adverse effects caused by CSI feedback information packet loss, and ensures CSI feedback performance.

A method and a device for transmitting / receiving control information in a wireless communication system are disclosed. A method of performing uplink transmission in a wireless communication system, according to one embodiment of the present disclosure, may comprise the steps of. receiving multicast PDSCHs on the basis of a plurality of G-RNTIs; receiving DCI for scheduling a PUSCH, wherein the DCI includes information on a T-DAI value for a HARQ-ACK codebook for a multicast; applying the T-DAI value per G-RNTI with respect to the plurality of G-RNTIs so as to determine a plurality of HARQ-ACK codebooks for the multicast PDSCHs; and transmitting HARQ-ACK information determined by concatenating the plurality of HARQ-ACK codebooks.

Methods and systems for transmitting uplink control information and feedback are disclosed for carrier aggregation systems. A user equipment device may be configured to transmit uplink control information and other feedback for several downlink component carriers using one or more uplink component carriers. The user equipment device may be configured to transmit such data using a physical uplink control channel rather than a physical uplink shared channel. The user equipment device may be configured to determine the uplink control information and feedback data that is to be transmitted, the physical uplink control channel resources to be used to transmit the uplink control information and feedback data, and how the uplink control information and feedback data may be transmitted over the physical uplink control channel.

Apparatuses and methods are disclosed for link-adaptation (LA) power backoff for beamforming. In one embodiment, a method in a network node includes triggering a link adaptation for a channel transmission, the link adaptation comprising adjusting a transmit power of the channel transmission based at least in part on whether a previous channel transmission was correctly decoded. In another embodiment, a method in a wireless device includes receiving a downlink, DL, channel transmission at a first transmit power value; and transmitting a message to a network node, the message indicating a power saturation condition as a result of the first transmit power value.

Method, network device and a computer program in a communication network (100) for the assisting of an application server (130) using the Constrained Application Protocol, CoAP, in the communication of a data object (600) to client devices (110), whereby the data object comprises data blocks (601-609). The network device is operative to inform of a multicast repair functionality. The network device is operative to receive at least one indication of at least one missing data block from a client device that did not successfully receive a data block within a transmission window. The network device is operative to decide to transmit and initiate transmission of the one or missing data block via unicast, multicast or both unicast and multicast. A computer program product is also disclosed.

A UE may: receive a configuration pertaining to a plurality of HARQ process-based HARQ-ACK codebooks, wherein the plurality of HARQ process-based HARQ-ACK codebooks are respectively related to a plurality of subsets of HARQ processes configured in the UE; receive DCI including indication information indicating one of the plurality of HARQ process-based HARQ-ACK codebooks; and transmit the indicated HARQ process-based HARQ-ACK codebook on the basis of the DCI. The configuration may include or exclude CBG level feedback-related parameters for each of the HARQ process-based HARQ-ACK codebooks.